EP0086465A1 - Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge - Google Patents

Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge Download PDF

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Publication number
EP0086465A1
EP0086465A1 EP83101305A EP83101305A EP0086465A1 EP 0086465 A1 EP0086465 A1 EP 0086465A1 EP 83101305 A EP83101305 A EP 83101305A EP 83101305 A EP83101305 A EP 83101305A EP 0086465 A1 EP0086465 A1 EP 0086465A1
Authority
EP
European Patent Office
Prior art keywords
fuse
heating coil
tubular heater
tube
tubular
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
EP83101305A
Other languages
German (de)
English (en)
Other versions
EP0086465B2 (fr
EP0086465B1 (fr
Inventor
Ingo Dr. Mont. Dipl.-Ing. Bleckmann
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.)
ELPAG AG CHUR
Original Assignee
ELPAG AG CHUR
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6155457&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0086465(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ELPAG AG CHUR filed Critical ELPAG AG CHUR
Priority to AT83101305T priority Critical patent/ATE23010T1/de
Publication of EP0086465A1 publication Critical patent/EP0086465A1/fr
Application granted granted Critical
Publication of EP0086465B1 publication Critical patent/EP0086465B1/fr
Publication of EP0086465B2 publication Critical patent/EP0086465B2/fr
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
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • 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
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material

Definitions

  • the invention relates to a tubular heater consisting of a heating coil made of resistance wire, which is embedded in insulating material in a jacket tube, with an overload protection ..
  • thermostat devices via which the tubular heater is switched off when a certain temperature is reached.
  • the known tubular heaters with overload protection have the disadvantage that the shutdown does not necessarily start at a precisely defined temperature or that a sensitive and possibly fault-prone device must be provided in the machine, which can be used for the shutdown z. B. performs depending on a specific signal current. Apart from the cost of such devices, there is no guarantee that they will maintain their adjustment during robust operation or that they will become inoperative, for example due to bridging. Especially when replacing the tubular heater Functional mechanism is often no longer guaranteed.
  • the overload safety device responds regardless of the temperature of the tubular heating element when there is an increased current draw in the event of a short circuit or a condition that leads to a short circuit - such as the start of the tubular heating element burning to the jacket tube - but that it does not respond on the other hand if the temperature of the tubular heating element is increased in a permissible manner by the addition of lime - however, it reacts when the tubular heating element begins to glow or the temperature of the heating coil or jacket tube corrimates to near the melting temperature.
  • the invention is based on the object of designing a tubular heating element in such a way that it switches off automatically when its current consumption exceeds a precisely defined limit value or when the temperature of the heating coil or jacket tube comes close to the melting temperature. Any additional switching devices in the device, which must be matched to the tubular heater, can be omitted in most embodiments.
  • the new design of the tubular heater has several advantages. Since the tubular heater itself contains its precisely coordinated fuse or other overload protection in its connection end, a number of uncertainty factors are eliminated. Above all, it is ensured that regardless of the operating conditions and the operating time of the device equipped with the tubular heater, the response value of the overload protection must inevitably always remain the same. It is impossible to switch off the fuse intentionally or unintentionally. Since the fuse is not installed by the device manufacturer, but by the tubular heater manufacturer, it is also ensured that it is exactly matched to the corresponding characteristics of the tubular heater. For example, a tubular heater of the same embodiment can be supplied in different quality levels and for different purposes.
  • the tubular heater contains the correctly coordinated fuse. Intended or unintentional manipulation is also excluded. For example, it is not possible to get the corresponding machine going again by "self-help", for example by bridging a thermostat.
  • the embodiments described in the subclaims also have their own particular advantages. The interchangeability of the fuse appears to be particularly important. If the fuse is replaced by the tubular heater manufacturer; this enables the causes of failure to be checked. The manufacturer has a better overview of whether continued operation of the tubular heater is permissible or desirable or whether it should be replaced by a new one.
  • the heating coil 2 is attached to a connecting bolt 4, which has an elongated conical end 5, which adjoins a substantially cylindrical head.
  • the welding essen the heating coil 2 is preferably done with a non-contact welding technology, for. B. a laser beam welding technology, at the welding point 6.
  • a connecting pipe 7 is pushed, which is pressed onto the welding point 6.
  • the connecting tube 7 is held concentrically in the jacket tube 1 by a sleeve-shaped insulating bead 8, the front end of the connecting tube 7 projecting beyond the front end of the insulating bead 8.
  • the length of the connecting tube 7 lying in the casing tube I is embedded in the insulating material 3.
  • the tubular heater can thus be rolled to the full length to compress the insulating material 3, the connecting tube 7 being fixed in its position accordingly.
  • the elongated conical end 5 of the connecting bolt 4 enables the press rolls to be adjusted accordingly in automatic control, with the roll engagement being increased but the contact pressure being kept constant.
  • the tubular heater thus has a double connection, the end of the connecting tube 7 projecting beyond the insulating bead 8 having a direct electrical connection to the heating coil 2, while the projecting end of the connecting wire II enables an electrical connection to the heating coil 2 via the fuse 9.
  • the tubular radiator can, for. B. in the manufacturing plant for testing purposes with a voltage exceeding the capacity of the fuse 9. Furthermore, it can be determined via this connection end whether the heating coil including its welding point 6 on the connection bolt 4 is intact. Furthermore, the end of the connecting pipe 7 can be used for operating or monitoring conditions that are not in need of security, for. B. Monitoring the temperature of the heating coil 2 by resistance measurement, continuous control of the leakage current, etc.
  • the fuse 9 can be easily replaced by pulling it out of the connecting tube 7.
  • FIG. 2 differs from the embodiment shown in FIG. 1 in that the connecting bolt 4 is omitted.
  • a connecting tube 13 is provided, the end 14 of which is located in the tubular heating element and is of elongated conical design.
  • the heating coil 2 is welded onto this conical end 14 at 15.
  • the fuse 9 has a correspondingly shaped extension 16 which is inserted into the end 14.
  • the embodiment has the advantage that the connecting bolt 4 is saved and that the fuse 9 is better fixed by appropriate clamping of the end 16. Contacting is also more reliable.
  • Figures 3 and 4 serve to explain a manufacturing process that is particularly well suited for mass production.
  • the cylindrical head of the connecting bolt has an annular groove 18 so that the outer cylindrical part 19 can easily be broken off with the aid of a suitable tool. Since the breaking point is completely free of burrs, a slotted sleeve 20 can be pushed over it, which resiliently rests on the cylindrical remaining part 21 of the connecting bolt.
  • the sleeve 20 is preferably made of copper. It is pushed onto part 21 about half of its length. A fuse 9 with a connecting wire 11 is now inserted into the protruding part of the sleeve 20. Sealing takes place by means of an appropriately shaped insulating material bushing 22.
  • FIG. 5 The embodiment shown in FIG. 5 is similar to the embodiment according to FIG. 1. Instead of a fuse 9, however, PTC disks 23 are used, which are interposed with an insulating film 24 are accommodated.
  • the PTC disks 23 consist of a resistance material with a positive temperature gradient.
  • the current flow from the connecting wire 11 to the connecting pin 4 accordingly drops with increasing heating of the PTC disks 23. If heat is correspondingly derived from the connecting pipe 7 from the inside of the tubular heater to the PTC elements 23 as a result of overheating of the tubular heater, there is a corresponding drop in the current flow due to the increase in resistance and accordingly a "regulation" of the heating power.
  • Fig. 6 shows that it can be advantageous to arrange a corresponding temperature-sensitive arrangement 26 outside the casing tube 1 of the tubular heater.
  • the schematically illustrated arrangement 26 can consist of the PTC elements described, but also of other temperature-sensitive switching parts, such as bimetallic switches or an electrical switching device. Characterized in that the switching device 26 is on the outside and is cooled, the response thereof can be moved to close to the melting point of the heating coil or the jacket tube 1 of the tubular heater. On the other hand, however, there is a response if the current flow increases inadmissibly, e.g. B. when the tubular heater begins to burn due to arcing from the heating coil 2 to the jacket tube 1.
  • the connecting bolt of the tubular heater is designed as a tube 27.
  • a fuse 9 is housed, which is pressed by a spring 28 so that good electrical contact of the inner connection 29 is ensured.

Landscapes

  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Unwinding Webs (AREA)
EP83101305A 1982-02-12 1983-02-11 Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge Expired - Lifetime EP0086465B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101305T ATE23010T1 (de) 1982-02-12 1983-02-11 Rohrheizkoerper mit einer ueberlastungssicherung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3204875 1982-02-12
DE3204875A DE3204875C2 (de) 1982-02-12 1982-02-12 Rohrheizkörper mit einer Überlastungssicherung

Publications (3)

Publication Number Publication Date
EP0086465A1 true EP0086465A1 (fr) 1983-08-24
EP0086465B1 EP0086465B1 (fr) 1986-10-15
EP0086465B2 EP0086465B2 (fr) 1991-03-06

Family

ID=6155457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101305A Expired - Lifetime EP0086465B2 (fr) 1982-02-12 1983-02-11 Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge

Country Status (3)

Country Link
EP (1) EP0086465B2 (fr)
AT (1) ATE23010T1 (fr)
DE (2) DE3204875C2 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157182A1 (fr) * 1984-03-01 1985-10-09 Elpag Ag Chur Corps de chauffe tubulaire
GB2168903A (en) * 1982-10-15 1986-07-02 Yamato Scient Co Ltd Distillation equipment
EP0204850A1 (fr) * 1985-06-05 1986-12-17 Elpag Ag Chur Elément chauffant tubulaire
FR2597222A1 (fr) * 1986-04-11 1987-10-16 Ciapem Appareil muni d'une resistance electrique chauffante
EP0318895A3 (en) * 1987-11-30 1990-08-08 Elpag Ag Chur Tubular heating element
EP0456216A2 (fr) * 1990-05-08 1991-11-13 Elpag Ag Chur Elément chauffant tubulaire avec fusible
FR2681496A1 (fr) * 1991-09-17 1993-03-19 Vulcanic Elements chauffants blindes a alimentation electrique, et procede de fabrication de tels elements.
EP0779043A1 (fr) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Appareil de chauffage pour cire à épiler
EP1816901A2 (fr) * 2006-02-06 2007-08-08 Bleckmann GmbH & Co. KG Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement
EP2180759A1 (fr) * 2008-10-22 2010-04-28 Türk + Hillinger GmbH Dispositif de chauffage électrique
EP2211588A1 (fr) 2009-01-21 2010-07-28 Bleckmann GmbH & Co. KG Element de contact pour spirale chauffante d'un element chauffant tubulaire et son procede de fabrication
US7949238B2 (en) * 2007-01-19 2011-05-24 Emerson Electric Co. Heating element for appliance
ITRM20100285A1 (it) * 2010-05-28 2011-11-29 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata, in particolare per lavabiancheria e lavastoviglie
ITRM20110286A1 (it) * 2011-06-09 2012-12-10 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata di elettrodomestico e relativo metodo di fabbricazione
WO2014158360A1 (fr) * 2013-03-14 2014-10-02 Chromalox, Inc. Ensemble d'éléments chauffants à moyenne tension
CN105775879A (zh) * 2016-04-13 2016-07-20 浙江中智机器人有限公司 适用于陶瓷ptc装配的拉膜穿管装置
EP3109564A1 (fr) * 2015-06-24 2016-12-28 Bleckmann GmbH & Co. KG Dispositif de terminal pour un dispositif de chauffage tubulaire avec fusible intégré
CN106630563A (zh) * 2016-09-23 2017-05-10 重庆市汇畅钢管制造有限公司 便携式玻璃管道打弯装置
US10932324B2 (en) 2015-07-31 2021-02-23 Bleckmann Gmbh & Co. Kg Flange assembly for securing a heating device to a fluid container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601307A1 (de) * 1986-01-17 1987-07-23 Siemens Ag Sicherungssystem gegen uebertemperaturen von stromfuehrenden elektrischen leitern
GB2422958B (en) * 2005-02-04 2008-07-09 Siemens Magnet Technology Ltd Quench protection circuit for a superconducting magnet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940499A (en) * 1959-09-18 1963-10-30 Merlin Mouldings Ltd Improvements in or relating to electric heating elements
DE1615370A1 (de) * 1965-11-23 1970-07-16 Little Lindsay Sydney Vorrichtung zum Schutze gegen UEberlastung eines elektrischen Heizelementes
US3614387A (en) * 1969-09-22 1971-10-19 Watlow Electric Mfg Co Electrical heater with an internal thermocouple
DE2124028A1 (de) * 1970-05-21 1971-12-02 Elpag Ag Chur Elektrischer Rohrheizkörper
DE2431658A1 (de) * 1974-07-02 1976-01-22 Heinz Stegmeier Heizpatrone mit temperaturbegrenzer
EP0010275A1 (fr) * 1978-10-13 1980-04-30 Elpag Ag Chur Elément chauffant tubulaire
EP0020797A1 (fr) * 1979-06-12 1981-01-07 Elpag Ag Chur Elément chauffant tubulaire

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7510409U (de) * 1975-08-28 Bahlmann G Kg Elektrisches Tauchheizgerät
DE1615370U (de) 1949-12-31 1950-11-02 Elisabeth Mauerer Leichtbaukran.
DE1125567B (de) 1956-06-22 1962-03-15 Walter Hering Dipl Ing Heizelement fuer elektrisch beheizte Geraete, insbesondere Waschmaschinen
DE1751745U (de) * 1956-08-03 1957-09-05 Voigt & Haeffner Ag Stromanschluss fuer rohrheizkoerper.
DE1259479B (de) * 1958-07-02 1968-01-25 Licentia Gmbh Elektrischer Hochspannungsheizstab
CH363735A (fr) * 1960-10-18 1962-08-15 Merlin Mouldings Limited Elément de chauffage électrique
DE1133843B (de) * 1960-04-09 1962-07-26 Schaltbau Gmbh Isolierte Aufhaengung fuer Rohrheizkoerper
DK92556C (da) 1960-05-03 1962-01-15 John Carlsen Sikring til elektriske strygejern.
NL287531A (fr) * 1962-08-11
DE2101062A1 (de) * 1971-01-11 1972-07-27 Tuerk & Hillinger Kg Elektrischer Rohrheizkörper mit Temperaturbegrenzer
DE2442717A1 (de) 1974-09-06 1976-03-18 Karl Fischer Elektrische heizplatte fuer elektroherde
DE2514584B2 (de) * 1975-04-03 1979-02-01 G. Bahlmann Kg Gmbh & Co, 5890 Schalksmuehle Elektrisches Tauchheizgerät
DE7639786U1 (de) 1976-12-20 1978-06-08 G. Bahlmann Kg, Gmbh & Co, 5885 Schalksmuehle Elektrischer rohrheizkoerper mit eingebautem temperatur-begrenzer
DE2856444A1 (de) 1978-12-28 1980-07-17 Heinz Stegmeier Heizpatrone, insbesondere zum be heizen von kunststoffspritzgussformen
DE7820178U1 (de) * 1978-07-05 1978-10-12 G. Bahlmann Kg, Gmbh & Co, 5885 Schalksmuehle Elektrisches tauchheizgeraet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940499A (en) * 1959-09-18 1963-10-30 Merlin Mouldings Ltd Improvements in or relating to electric heating elements
DE1615370A1 (de) * 1965-11-23 1970-07-16 Little Lindsay Sydney Vorrichtung zum Schutze gegen UEberlastung eines elektrischen Heizelementes
US3614387A (en) * 1969-09-22 1971-10-19 Watlow Electric Mfg Co Electrical heater with an internal thermocouple
DE2124028A1 (de) * 1970-05-21 1971-12-02 Elpag Ag Chur Elektrischer Rohrheizkörper
DE2431658A1 (de) * 1974-07-02 1976-01-22 Heinz Stegmeier Heizpatrone mit temperaturbegrenzer
EP0010275A1 (fr) * 1978-10-13 1980-04-30 Elpag Ag Chur Elément chauffant tubulaire
EP0020797A1 (fr) * 1979-06-12 1981-01-07 Elpag Ag Chur Elément chauffant tubulaire

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168903A (en) * 1982-10-15 1986-07-02 Yamato Scient Co Ltd Distillation equipment
EP0157182A1 (fr) * 1984-03-01 1985-10-09 Elpag Ag Chur Corps de chauffe tubulaire
EP0204850A1 (fr) * 1985-06-05 1986-12-17 Elpag Ag Chur Elément chauffant tubulaire
FR2597222A1 (fr) * 1986-04-11 1987-10-16 Ciapem Appareil muni d'une resistance electrique chauffante
EP0318895A3 (en) * 1987-11-30 1990-08-08 Elpag Ag Chur Tubular heating element
US5020128A (en) * 1987-11-30 1991-05-28 Ingo Bleckmann Tubular sheathed electric heater with an overheat safety device
EP0456216A2 (fr) * 1990-05-08 1991-11-13 Elpag Ag Chur Elément chauffant tubulaire avec fusible
DE4014753A1 (de) * 1990-05-08 1991-11-14 Elpag Ag Chur Rohrheizkoerper mit sicherung
EP0456216A3 (en) * 1990-05-08 1992-08-05 Elpag Ag Chur Tubular heating element with fuse
FR2681496A1 (fr) * 1991-09-17 1993-03-19 Vulcanic Elements chauffants blindes a alimentation electrique, et procede de fabrication de tels elements.
EP0779043A1 (fr) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Appareil de chauffage pour cire à épiler
EP1816901A2 (fr) * 2006-02-06 2007-08-08 Bleckmann GmbH & Co. KG Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement
EP1816901A3 (fr) * 2006-02-06 2009-01-14 Bleckmann GmbH & Co. KG Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement
US7949238B2 (en) * 2007-01-19 2011-05-24 Emerson Electric Co. Heating element for appliance
EP2180759A1 (fr) * 2008-10-22 2010-04-28 Türk + Hillinger GmbH Dispositif de chauffage électrique
EP2211588A1 (fr) 2009-01-21 2010-07-28 Bleckmann GmbH & Co. KG Element de contact pour spirale chauffante d'un element chauffant tubulaire et son procede de fabrication
WO2010083969A1 (fr) * 2009-01-21 2010-07-29 Bleckmann Gmbh & Co. Kg Élément de raccordement pour filament chauffant de radiateur tubulaire, et procédé de fabrication correspondant
CN102362545A (zh) * 2009-01-21 2012-02-22 布莱克曼两合公司 用于管状加热体的螺旋线加热丝的连接元件及其制造方法
CN102362545B (zh) * 2009-01-21 2014-09-10 布莱克曼两合公司 用于管状加热体的螺旋线加热丝的连接元件及其制造方法
ITRM20100285A1 (it) * 2010-05-28 2011-11-29 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata, in particolare per lavabiancheria e lavastoviglie
ITRM20110286A1 (it) * 2011-06-09 2012-12-10 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata di elettrodomestico e relativo metodo di fabbricazione
WO2012168906A1 (fr) * 2011-06-09 2012-12-13 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Résistance blindée d'un appareil électroménager et procédé de fabrication de ladite résistance
WO2014158360A1 (fr) * 2013-03-14 2014-10-02 Chromalox, Inc. Ensemble d'éléments chauffants à moyenne tension
US9301341B2 (en) 2013-03-14 2016-03-29 Chromalox, Inc. Medium voltage heating element assembly
EP3109564A1 (fr) * 2015-06-24 2016-12-28 Bleckmann GmbH & Co. KG Dispositif de terminal pour un dispositif de chauffage tubulaire avec fusible intégré
WO2016207392A1 (fr) * 2015-06-24 2016-12-29 Bleckmann Gmbh & Co. Kg Dispositif de terminal destiné à un dispositif de chauffage tubulaire doté de fusible intégré
US11204186B2 (en) 2015-06-24 2021-12-21 Bleckmann Gmbh & Co. Kg Terminal device for a tubular heating device with integrated fuse
US10932324B2 (en) 2015-07-31 2021-02-23 Bleckmann Gmbh & Co. Kg Flange assembly for securing a heating device to a fluid container
CN105775879A (zh) * 2016-04-13 2016-07-20 浙江中智机器人有限公司 适用于陶瓷ptc装配的拉膜穿管装置
CN106630563A (zh) * 2016-09-23 2017-05-10 重庆市汇畅钢管制造有限公司 便携式玻璃管道打弯装置

Also Published As

Publication number Publication date
DE3204875C2 (de) 1985-02-07
DE3204875A1 (de) 1983-09-01
EP0086465B2 (fr) 1991-03-06
DE3367064D1 (en) 1986-11-20
EP0086465B1 (fr) 1986-10-15
ATE23010T1 (de) 1986-11-15

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