EP0816199A2 - Electrical heating for a central buffer coupling - Google Patents

Electrical heating for a central buffer coupling Download PDF

Info

Publication number
EP0816199A2
EP0816199A2 EP97110338A EP97110338A EP0816199A2 EP 0816199 A2 EP0816199 A2 EP 0816199A2 EP 97110338 A EP97110338 A EP 97110338A EP 97110338 A EP97110338 A EP 97110338A EP 0816199 A2 EP0816199 A2 EP 0816199A2
Authority
EP
European Patent Office
Prior art keywords
groove
silicone material
central buffer
heating element
electric heater
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
EP97110338A
Other languages
German (de)
French (fr)
Other versions
EP0816199B1 (en
EP0816199A3 (en
Inventor
Joachim Kreher
Walter Köhler
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.)
Voith Turbo Scharfenberg GmbH and Co KG
Original Assignee
Scharfenbergkupplung GmbH and Co KG
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 Scharfenbergkupplung GmbH and Co KG filed Critical Scharfenbergkupplung GmbH and Co KG
Publication of EP0816199A2 publication Critical patent/EP0816199A2/en
Publication of EP0816199A3 publication Critical patent/EP0816199A3/en
Application granted granted Critical
Publication of EP0816199B1 publication Critical patent/EP0816199B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

Definitions

  • the invention relates to an electric heater for central buffer clutches, the Radiator inserted in a groove of the coupling head and covered to the outside is.
  • the invention is therefore based on the object of an electrical heater for central buffer couplings to improve in such a way that with economical and simple production and assembly damage to the heater occurs and the service life is reduced Heating is increased.
  • the electrical heater according to the invention for a central buffer coupling has one Radiator 1, which is introduced into a groove 2 of the coupling head 3. Of the Radiator 1 is inserted into the groove 2 and by means of an elastic adhesive and Sealant held in this. Silicone material 4 is used as an adhesive and sealant Use.
  • the groove 2 is completely up to the edge of the buffer areas with the silicone material 4 fills and forms the outer end of the groove 2.
  • the silicone material 4 is a one-component material that can flow at room temperature, which crosslinks under the influence of air humidity at room temperature or cures elastically.
  • the silicone material is designed such that it is in the temperature range of at least - 40 ° C to at least + 200 ° C maintains its elasticity sufficiently.
  • the silicone material used is also characterized by good electrical properties Insulation with a dielectric strength greater than or equal to 12 kilovolts per mm (KV / mm) with good thermal conductivity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)
  • Mechanical Operated Clutches (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Vibration Prevention Devices (AREA)
  • Sealing Devices (AREA)
  • Electronic Switches (AREA)

Abstract

An electric heater for central buffer couplings, with a heating element introduced into a groove of the coupling head. The heating element is covered to the outside. To reduce damage to the heating elements and to prolong the service life of the heater, the heating element in the groove is filled with silicone material, which forms the outer cover and is a flowable single-component material, which undergoes crosslinking at room temperature under the action of atmospheric humidity.

Description

Die Erfindung betrifft eine elektrische Heizung für Mittelpufferkupplungen, deren Heizkörper in einer Nut des Kupplungskopfes eingebracht und nach außen abgedeckt ist.The invention relates to an electric heater for central buffer clutches, the Radiator inserted in a groove of the coupling head and covered to the outside is.

Es sind Mittelpufferkupplungen der Bauart Scharfenberg bekannt, bei denen in die Pufferfläche des Kupplungskopfes im Bereich des Zentrierkegels und des Trichters eine etwa halbkreisförmige Nut eingebracht ist, in die ein Heizkörper eingelegt ist. Der Heizkörper soll im Winter die Stirnflächen und den Kupplungsmechanismus von Eis und Schnee freihalten und die Kupplungsfunktion sicherstellen. Die Nut ist durch ein Hartlot, das einen Teil der Pufferfläche bildet, nach außen abgeschlossen. Als Hartlote können nur niedrig schmelzende Hartlote, z. B. teure Silberlote, verwendet werden, weil bei höheren Verarbeitungstemperaturen die Gefahr der Beschädigung des Heizkörpers besteht.There are medium buffer couplings of the Scharfenberg type, in which in the Buffer surface of the coupling head in the area of the centering cone and the funnel an approximately semicircular groove is introduced into which a heating element is inserted. In winter, the radiator is designed to cover the end faces and the coupling mechanism of Keep ice and snow clear and ensure the coupling function. The groove is through a hard solder, which forms part of the buffer area, is sealed off from the outside. As Brazing alloys can only use low-melting brazing alloys, e.g. B. expensive silver solders used because there is a risk of damage at higher processing temperatures of the radiator.

Der Einsatz von Weichloten mit niedrigerem Schmelzpunkt erwies sich als ungeeignet, da bei der geforderten Heizleistung des Heizkörpers oft die Schmelztemperatur des Weichlotes erreicht wurde.The use of soft solders with a lower melting point proved unsuitable, because with the required heating output of the radiator often the melting temperature of the soft solder has been reached.

Weiter ist es bekannt, die Nut durch eingeschweißt Abdeckbleche nach außen abzuschließen. Durch die erhöhte Wärmezufuhr beim Schweißen muß der mögliche Verzug der Abdeckbleche und auch der Stirnplatte beachtet und berücksichtigt werden. Unwirtschaftliches Vorarbeiten der Nut mit geschliffener Anlage für das Abdeckblech und unwirtschaftliche Nacharbeiten, insbesondere das Einebenen der Schweißnaht, sind erforderlich. Neben der möglichen Beschädigung des Heizkörpers durch das Schweißverfahren ist im Hohlraum für die Heizkörper immer die Gefahr des Eindringens von Feuchtigkeit und damit der Zerstörung des Heizkörper gegeben. It is also known to close the groove to the outside by welded cover plates. Due to the increased heat input during welding, the possible Warping of the cover plates and also the end plate must be observed and taken into account. Inefficient preparation of the groove with a ground system for the cover plate and uneconomical rework, especially the leveling of the Weld, are required. In addition to the possible damage to the radiator The welding process always creates a risk for the radiators in the cavity the penetration of moisture and thus the destruction of the radiator.

Der Erfindung liegt daher die Aufgabe zugrunde, eine elektrische Heizung für Mittelpufferkupplungen derart zu verbessern, daß bei wirtschaftlicher und einfacher Herstellung und Montage Heizungsschäden verringert auftreten und die Standzeit der Heizung erhöht wird.The invention is therefore based on the object of an electrical heater for central buffer couplings to improve in such a way that with economical and simple production and assembly damage to the heater occurs and the service life is reduced Heating is increased.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichnete Heizung gelöst.This object is achieved by the heater characterized in claim 1.

Zweckmäßige Weiterbildungen sind in den Unteransprüchen angegeben.Appropriate further training is specified in the subclaims.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die Zeichnung näher erläutert. Es zeigt

Fig. 1
eine elektrische Heizung für eine Mittelpufferkupplung mit eingebrachtem Heizkörper.
The invention is explained in more detail below using an exemplary embodiment with reference to the drawing. It shows
Fig. 1
an electric heater for a central buffer coupling with an integrated radiator.

Die erfindungsgemäße, elektrische Heizung für eine Mittelpufferkupplung weist einen Heizkörper 1 auf, der in eine Nut 2 des Kupplungskopfes 3 eingebracht ist. Der Heizkörper 1 ist in die Nut 2 eingelegt und mittels eines elastischen Klebe- und Dichtmittels in dieser gehalten. Als Klebe- und Dichtmittel findet Silikonwerkstoff 4 Verwendung. Die Nut 2 ist vollständig bis zum Rand der Pufferflächen mit dem Silikonwerkstoff 4 verfüllt und bildet den äußeren Abschluß der Nut 2.The electrical heater according to the invention for a central buffer coupling has one Radiator 1, which is introduced into a groove 2 of the coupling head 3. Of the Radiator 1 is inserted into the groove 2 and by means of an elastic adhesive and Sealant held in this. Silicone material 4 is used as an adhesive and sealant Use. The groove 2 is completely up to the edge of the buffer areas with the silicone material 4 fills and forms the outer end of the groove 2.

Der Silikonwerkstoff 4 ist ein bei Raumtemperatur fließfähiger Einkomponentenwerkstoff, der unter Einfluß von Luftfeuchtigkeit bei Raumtemperatur vernetzt bzw. elastisch aushärtet.The silicone material 4 is a one-component material that can flow at room temperature, which crosslinks under the influence of air humidity at room temperature or cures elastically.

Der Silikonwerkstoff ist derart ausgebildet, daß er im Temperaturbereich von mindestens - 40 ° C bis mindestens + 200 ° C seine Elastizität ausreichend beibehält.The silicone material is designed such that it is in the temperature range of at least - 40 ° C to at least + 200 ° C maintains its elasticity sufficiently.

Weiter zeichnet sich der verwendete Silikonwerkstoff durch eine gute elektrische Isolation mit einer Durchschlagsfestigkeit von größer gleich 12 Kilovolt pro mm (KV/mm) bei guter Wärmeleitfähigkeit aus.The silicone material used is also characterized by good electrical properties Insulation with a dielectric strength greater than or equal to 12 kilovolts per mm (KV / mm) with good thermal conductivity.

Claims (3)

Die Erfindung betrifft eine elektrische Heizung für Mittelpufferkupplungen, deren Heizkörper in einer Nut des Kupplungskopfes eingebracht und nach außen abgedeckt ist, dadurch gekennzeichnet, daß der Heizkörper (1) in der Nut (2) mit Silikonwerkstoff (4) gehalten ist, daß die Nut (2) mit dem Silikonwerkstoff (4) verfüllt ist und die äußere Abdeckung bildet und daß der Silikonwerkstoff (4) ein fließfähiger Einkomponentenwerkstoff ist, der unter Einwirkung von Luftfeuchtigkeit bei Raumtemperatur vernetzt.The invention relates to an electric heater for central buffer clutches, the heating element of which is inserted in a groove of the coupling head and covered to the outside, characterized in that the heating element (1) is held in the groove (2) with silicone material (4) such that the groove ( 2) is filled with the silicone material (4) and forms the outer cover and that the silicone material (4) is a flowable one-component material that crosslinks under the influence of atmospheric humidity at room temperature. Elektrische Heizung für Mittelpufferkupplungen nach Anspruch 1, dadurch gekennzeichnet, daß der Silikonwerkstoff (4) im Temperaturbereich von mindestens - 40 °C bis mindestens + 200 °C seine Elastizität ausreichend beibehält.Electrical heating for central buffer couplings according to claim 1, characterized in that the silicone material (4) maintains its elasticity sufficiently in the temperature range from at least - 40 ° C to at least + 200 ° C. Elektrische Heizung für Mittelpufferkupplungen, nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Silikonwerkstoff (4) eine gute elektrische Isolation aufweist (Durchschlagfestigkeit größer gleich 12 KV/mm) bei guter Wärmeleitfähigkeit.Electric heater for central buffer couplings, according to claim 1 or 2, characterized in that the silicone material (4) has good electrical insulation (dielectric strength greater than or equal to 12 KV / mm) with good thermal conductivity.
EP97110338A 1996-06-26 1997-06-25 Electrical heating for a central buffer coupling Expired - Lifetime EP0816199B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29611148U DE29611148U1 (en) 1996-06-26 1996-06-26 Electric heater for middle buffer clutches
DE29611148U 1996-06-26

Publications (3)

Publication Number Publication Date
EP0816199A2 true EP0816199A2 (en) 1998-01-07
EP0816199A3 EP0816199A3 (en) 1999-03-10
EP0816199B1 EP0816199B1 (en) 2002-10-09

Family

ID=8025684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110338A Expired - Lifetime EP0816199B1 (en) 1996-06-26 1997-06-25 Electrical heating for a central buffer coupling

Country Status (6)

Country Link
US (1) US6008472A (en)
EP (1) EP0816199B1 (en)
AT (1) ATE225725T1 (en)
CA (1) CA2208909C (en)
DE (2) DE29611148U1 (en)
ES (1) ES2184008T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144838A1 (en) * 2001-09-12 2003-03-27 Scharfenbergkupplung Gmbh & Co Electrical heating for the coupling head of a middle buffer coupling
DE502004007562D1 (en) * 2004-09-06 2008-08-21 Voith Turbo Scharfenberg Gmbh Coupling head with detachable front plate, for rail vehicles, as well as the associated assembly process
CH703319B1 (en) * 2006-08-29 2011-12-30 Schwab Verkehrstechnik Ag Coupling head for rail vehicles.
CN102826101A (en) * 2012-09-07 2012-12-19 资阳晨风电气有限公司 Heating flip cover device based on bullet train connector
DE102014202936A1 (en) * 2014-02-18 2015-08-20 Voith Patent Gmbh Guide unit for electric contact couplings and central buffer couplings for rail vehicles with a guided on a guide unit electrical contact coupling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011181A1 (en) * 1978-11-14 1980-05-28 Küppersbusch Aktiengesellschaft Heat accumulating plate
DE3934393A1 (en) * 1989-10-14 1991-04-18 Krauss Marmorheizung Gmbh Stone cladding tile with electrical heating cable - contains channels with conductors embedded in mixt. of cement and good heat-conductor e.g. aluminium nitrite

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE420381A (en) * 1936-03-10
FR2257184B1 (en) * 1974-01-04 1976-12-31 Sp K Bjur
DE2647540C2 (en) * 1976-10-21 1978-10-12 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Induction heatable godet
DE2926301A1 (en) * 1979-06-29 1980-12-18 Scharfenbergkupplung Gmbh AUTOMATIC MEDIUM BUFFER CLUTCH FOR VEHICLES, ESPECIALLY RAILWAY VEHICLES
US4387291A (en) * 1980-11-28 1983-06-07 Texas Instruments Incorporated Fuel heater system and self-regulating heater therefor
US4600825A (en) * 1981-06-03 1986-07-15 Walter Blazejovsky Electrically heated diesel engine fuel conveying system
JPH039284Y2 (en) * 1984-09-25 1991-03-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011181A1 (en) * 1978-11-14 1980-05-28 Küppersbusch Aktiengesellschaft Heat accumulating plate
DE3934393A1 (en) * 1989-10-14 1991-04-18 Krauss Marmorheizung Gmbh Stone cladding tile with electrical heating cable - contains channels with conductors embedded in mixt. of cement and good heat-conductor e.g. aluminium nitrite

Also Published As

Publication number Publication date
EP0816199B1 (en) 2002-10-09
DE29611148U1 (en) 1997-07-24
DE59708406D1 (en) 2002-11-14
EP0816199A3 (en) 1999-03-10
US6008472A (en) 1999-12-28
CA2208909C (en) 2005-12-13
CA2208909A1 (en) 1997-12-26
ES2184008T3 (en) 2003-04-01
ATE225725T1 (en) 2002-10-15

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