EP1816901B1 - Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement - Google Patents

Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement Download PDF

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Publication number
EP1816901B1
EP1816901B1 EP07002319A EP07002319A EP1816901B1 EP 1816901 B1 EP1816901 B1 EP 1816901B1 EP 07002319 A EP07002319 A EP 07002319A EP 07002319 A EP07002319 A EP 07002319A EP 1816901 B1 EP1816901 B1 EP 1816901B1
Authority
EP
European Patent Office
Prior art keywords
heating apparatus
jacket pipe
bead
closing
filling
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
EP07002319A
Other languages
German (de)
English (en)
Other versions
EP1816901A2 (fr
EP1816901A3 (fr
Inventor
Andreas Pleschinger
René Hendler
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.)
Bleckmann GmbH and Co KG
Original Assignee
Bleckmann 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 Bleckmann GmbH and Co KG filed Critical Bleckmann GmbH and Co KG
Priority to PL07002319T priority Critical patent/PL1816901T3/pl
Publication of EP1816901A2 publication Critical patent/EP1816901A2/fr
Publication of EP1816901A3 publication Critical patent/EP1816901A3/fr
Application granted granted Critical
Publication of EP1816901B1 publication Critical patent/EP1816901B1/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
    • H05B3/40—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
    • 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 present invention relates to a heating device for heating a fluid, in particular in household appliances, which according to the preamble of claim 1 includes: a jacket tube, at least one arranged in the interior of the jacket tube electrical resistance heating wire, embedded in an electrically insulating, heat-conducting insulating compound in the jacket tube is at least one terminal assembly, which is arranged in the interior of the jacket tube and which is guided to connect the electrical resistance heating wire with a au- ⁇ er distress of the jacket tube located electrical energy source from the jacket tube to the outside, and at least one sealing bead, which the opening of the jacket tube closes.
  • a heater in the form of a tubular heater having the structure mentioned above.
  • the terminal assembly is connected at its one end via a connecting bolt with the electrical resistance heating wire.
  • the other end of the connection assembly protrudes from the jacket tube of the prior art tubular heater and is used to connect the tubular heater with an electrical energy source.
  • Fig. 1 such a prior art heater is shown.
  • the area of the terminal assembly A in particular the region of the overload protection Ü from the region of the electrical resistance heating wire W is separated by a first disk Sl 1 of insulating resin.
  • an insulating compound IM is filled in the area of the electrical resistance heating wire W.
  • the largest part of the connection assembly A is enclosed by a plastic sleeve K, which electrically isolates the connection assembly A from the jacket tube M.
  • a copper sleeve KH is pushed onto the facing away from the interior of the jacket tube M front end of the connecting bolt A, which is also pushed on its other side to the thermal overload fuse Ü.
  • two further Materiaiusionn Sl 2 , Sl 3 of insulating resin and an insulating bead IP close.
  • This prior art heater has a number of disadvantages: First of all, a large number of individual parts is necessary in order to be able to arrange the connection assembly functionally reliable in the interior of the jacket tube. By this variety of parts, but also by the consequent large number of necessary handling operations for mounting this extensive number of components, the cost of the prior art heater increase significantly. In addition, there are large tolerance additions. Furthermore, the jacket tube after filling the insulating material for compression of these reduction of diameter, for example, 10 mm, to a reduced diameter, for example, 8.5 mm, must be reduced. This can be done both before the assembly of the terminal assembly and thereafter, in the latter case, the Reduzierwalzen must be lifted in time from the jacket tube in order to avoid damage to the terminal assembly, in particular the thermal overload protection.
  • the reduction process makes it necessary for the jacket tube of the heater to undergo a recrystallization anneal, otherwise there is a risk that in a bending process of the jacket tube, for example, to give it a U-shaped or W-shaped configuration, it would rupture. Furthermore, the heaters must be isolated, otherwise Moisture is absorbed by the filling compound and thus a short circuit can occur from the electrical resistance heating wire to the jacket tube.
  • the thermal overload protection can be connected directly to the terminal bolt, for example, by the fact that the wire of the overload protection is connected directly to the terminal bolt, for example by Verkerben. Since the number of parts has decreased significantly compared to the prior art heaters, the number of handling operations or assembly steps in the assembly of the heater according to the invention is significantly reduced. Overall, therefore, the solution according to the invention saves considerable costs.
  • the electrical resistance heating wire is inserted into the mandrel together with the terminal bolt or bolts.
  • the filling of the jacket tube with the insulating material is introduced into the casing tube, after which the copper sleeve is pushed together with the thermal overload protection on the connecting bolt.
  • the two other insulating discs made of synthetic resin and the insulating bead are inserted into the casing tube end and the casing tube end plastically deformed and sealed it.
  • the closure bead is provided on its outside with at least one filling slot extending over its entire axial length, it is possible to use the entire unit of electrical resistance heating wire and terminal assembly, which in turn consists of the one hand with the electrical resistance heating wire and the other thermal overload protection connected connecting pin, the thermal overload protection itself and the sealing bead is to introduce before filling the insulating in the jacket tube.
  • the at least one filling slot then the insulating can be filled in thedian Glate jacket tube.
  • the closure bead has on its outside a total of four filling slots, preferably distributed in the circumferential direction in a uniform division, the filling process can be carried out more quickly.
  • a sealing bead is used, which has no Artschlitz, so this jacket tube both tight against leakage of the insulating material from the jacket tube and tight towards an access of any other medium or fluid into the interior of the jacket tube closes.
  • a closure bead with at least one fill slot is then provided at the other end face of the jacket tube.
  • the at least one filling slot must be closed.
  • this can be achieved by providing at least one deformable closure nose on the closure bead on its side facing away from the casing tube interior.
  • This deformable closure nose can be deformed after the filling process so that they mediumsdicht the filling slot closes. This can be done, for example, that the at least one closure lug of the sealing bead consists of a thermally deformable plastic, so that this closing process can be carried out with a hot stamping tool. If the closure bead has a plurality of filling slots, then such a closure nose is provided for each of these filling slots.
  • a further alternative for closing the filling slot (s) of the closure bead is to attach to the closure bead towards the outside of the jacket tube, i. in the direction of the jacket tube opening a sealing bead connects, which closes the jacket tube medium-tight.
  • the heaters In the heaters, as they are known from the prior art, takes place after filling the insulating and before mounting the overload protection rolling a process for compacting the insulating.
  • this rolling process reduces the diameter of the jacket tube, for example, from 10 mm to 8.5 mm.
  • the latter diameter is a diameter which is often found in practice in such heaters, since this Au- ⁇ diameter is provided to the inner diameters of through holes in a for holding the heater to a fluid container to be heated.
  • the jacket tube already has a diameter which can be used for corresponding flange assemblies and the like, i.e. that it is no longer necessary to reduce the diameter of the jacket tube.
  • the jacket tube is merely subjected to a pressing process. As a result, it is then no longer necessary to carry out a subsequent recrystallization annealing.
  • insulating material previously used in practice, namely magnesium oxide
  • siliconized magnesium oxide whereby isolation by synthetic resin is no longer necessary.
  • insulating a standard mass such as To use magnesium oxide and seal the heater to the outside with a thermoelastic filler bead, which closes the jacket tube medium-tight.
  • the heater may be additionally sealed to the outside with a covering resin.
  • heating device has as essential components or assemblies a jacket tube 10, an electrical resistance heating wire 20, a terminal assembly 30 and an insulating material 40. These individual assemblies will be explained below.
  • the jacket tube 10 consists of a sufficient or good heat conducting material, such as stainless steel or aluminum, and has an at least approximately circular cross-section.
  • the two front ends 10a of the jacket tube 10 are open to the outside, it being noted that in the Fig. 2A . 2 B only one of the two front ends 10a is shown.
  • the jacket tube 10 can be made into any external shape, e.g. For example, be designed as a straight tube or be bent in the shape of the letter "U” or "W".
  • the jacket tube 10 has from the beginning, i. already at the beginning of assembly of the arranged in the casing 10 components or assemblies on the outer diameter, which it has in the installed state, for example in a fluid container in a dishwasher or a laundry washing machine.
  • the electrical resistance heating wire 20 which is arranged at least approximately coaxially to the central longitudinal line thereof in the interior of the jacket tube 10 and which is manufactured from an electrical resistance material which heats up when current flows, is wound into a heating coil. At its two free ends, the electrical resistance heating wire 20 is connected to the terminal assembly 30 located there. This connection can be made for example by a weld.
  • connection module 30 initially has a likewise at least approximately coaxial with the central longitudinal line of the jacket tube 10 arranged connecting bolt 32, which may be made of a good heat and electrically conductive material, such as copper.
  • connecting bolt 32 which may be made of a good heat and electrically conductive material, such as copper.
  • this has at its facing the electrical resistance heating wire 20 end a tapered portion 32 a, so that wound to the helix electrical resistance heating wire 20 on the connecting bolt 32nd easily postponed and, as already mentioned, by means of, for example, a welding point can be specified there.
  • the conical portion 32a is followed by a circular cylindrical portion 32b of the connecting bolt 32.
  • the latter is connected to a likewise at least approximately coaxial with the central longitudinal line of the jacket tube 10 arranged thermal overload protection 34 in such a way that a lead wire 34a of the thermal overload protection 34 with the right frontal End of the connecting bolt 32 is connected by a crimping or notching process.
  • the thermal overload protection 34 may be formed for example by a fuse that interrupts the electrical connection between the electrical resistance heating wire 20 and a power source, not shown, when a predetermined temperature is exceeded.
  • a connecting piece of wire 36 is connected to the thermal overload protection 34, for example by a crimping or notching process.
  • This connection piece of wire 36 is led out of the jacket tube 10 to the outside and serves to connect the heating device according to the invention with the already mentioned, not shown electrical energy source.
  • a closure bead 38 is provided, which in detail in the Fig. 3 and 4 is shown in more detail.
  • the closure bead 38 is made of a thermoformable plastic. Like from the Fig. 2A . 2 B and 4 can be seen, the closure bead 38 has four in the circumferential direction of the closure bead 38 in a uniform pitch distributed filling slots 38a. These filling slots 38a extend over the entire axial length of the sealing bead 38. Webs 38b are provided between the individual filling slots 38a, the outer diameter of which corresponds at least approximately to the inner diameter of the jacket tube 10.
  • lugs 38c are provided on the webs, which close the filling slots 38a by a thermal deformation process after a filling with an insulating material 40, as will be explained in more detail below.
  • the closure bead 38 projects beyond the right-hand end 10a of the jacket tube 10. In its axial position it is fixed by means of two notches on the connecting piece of wire 36.
  • the area of the second terminal end of the heating device according to the invention on the side not shown as well may be constructed as explained above.
  • another closure bead is used, for example one which has no filling slots and whose outside diameter substantially corresponds to the inside diameter of the jacket tube 10. This closure bead can then be fixed, for example, by an adhesive process in the local end of the jacket tube 10.
  • siliconized insulating compound 40 serves to electrically insulate the electrical resistance heating wire 20 and the other electrical components of the terminal assembly 30, i. of the connecting bolt 32, the thermal overload protection 34 and the connecting wire piece 36 with respect to the inner wall of the jacket tube 10.
  • the siliconized insulating compound has the heat generated by the electrical resistance heating wire 20 to conduct to the jacket tube 10.
  • the locking lugs 38b of the closure bead 38 by a thermal deformation process in the Deformed manner that the filling slots 38a are sealed medium-tight.

Landscapes

  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Pipe Accessories (AREA)

Claims (11)

  1. Dispositif de chauffage pour chauffer un fluide, notamment dans des appareils électroménager, dans lequel le dispositif de chauffage comprend :
    un tube (10) formant enveloppe, au moins un fil (20) chauffant à résistance électrique disposé à l'intérieur du tube (10) formant enveloppe et incorporé dans le tube (10) formant enveloppe dans une masse (40) isolante du point de vue électrique et conductrice de la chaleur, au moins un module (30) de raccordement, qui est disposé à l'intérieur du tube (10) formant enveloppe et qui, pour la liaison du fil (20) chauffant à résistance électrique à une source d'énergie électrique se trouvant à l'extérieur du tube (10) formant enveloppe, est guidée du tube (10) formant enveloppe vers l'extérieur, et au moins une perle (38) de fermeture, qui ferme l'ouverture du tube (10) formant enveloppe, le module (30) de raccordement étant entouré à l'intérieur du tube (10) formant enveloppe jusqu'à la perle (38) de fermeture, également par la masse (40) isolante,
    dans lequel la perle (38) de fermeture est pourvue du côté extérieur d'au moins une fente (38a) de remplissage, qui s'étend sur toute la longueur axiale et qui est destinée à l'introduction de la masse (40) isolante,
    caractérisé en ce que la masse isolante est une masse siliconisée, notamment de l'oxyde de magnésium siliconisé.
  2. Dispositif de chauffage suivant la revendication 1, caractérisé en ce que la perle (38) de fermeture a, sur son côté extérieur, en tout quatre fentes (38a) de remplissage réparties, de préférence suivant un pas uniforme, dans la direction périphérique.
  3. Dispositif de chauffage suivant la revendication 1 ou 2, caractérisé en ce que la perle (38) de fermeture est pourvue, sur son côté éloigné de l'intérieur du tube formant enveloppe, d'au moins un bec (38c) déformable.
  4. Dispositif de chauffage suivant la revendication 3, caractérisé en ce qu'au moins le bec (38c) de fermeture de la perle (38) de fermeture est en une matière plastique déformable thermiquement.
  5. Dispositif de chauffage suivant la revendication 3 ou 4, caractérisé en ce que le bec (38c) de fermeture de la perle (38) de fermeture est déformable après la fin du remplissage, de manière à ce qu'il ferme d'une manière étanche au fluide la fente (38a) de remplissage.
  6. Dispositif de chauffage suivant l'une des revendications 1 à 2, caractérisé en ce qu'au moins une perle d'étanchéité se raccorde à la perle (38) de fermeture dans la direction du côté extérieur du tube (10) formant enveloppe.
  7. Dispositif de chauffage suivant l'une des revendications 1 à 6, caractérisé en ce le module (30) de raccordement comporte au moins une sécurité (34) vis-à-vis d'une surcharge, qui est entourée également de la masse (40) isolante.
  8. Dispositif de chauffage suivant l'une des revendications 1 à 7, caractérisé en ce que le module (30) de raccordement comporte au moins un axe (32) de raccordement, qui est incorporé dans la masse (40) isolante et qui est relié, d'une part, au fil (20) chauffant à résistance électrique et, d'autre part, à une sécurité (34) vis-à-vis d'une surcharge présente éventuellement.
  9. Dispositif de chauffage suivant l'une des revendications 1 à 8, caractérisé en ce que le tube (10) formant enveloppe a été soumis à une opération de compression pour comprimer la masse isolante.
  10. Dispositif de chauffage suivant l'une des revendications 1 à 9, caractérisé en ce que la masse (40) isolante est une masse standard comme de l'oxyde de magnésium, et le dispositif de chauffage est rendu étanche vis-à-vis de l'extérieur par une perle de remplissage thermoélastique, qui ferme le tube (10) formant enveloppe d'une manière étanche au fluide.
  11. Dispositif de chauffage suivant la revendication 10, caractérisé en ce que le dispositif de chauffage est rendu étanche vis-à-vis de l'extérieur supplémentairement par une résine de recouvrement.
EP07002319A 2006-02-06 2007-02-02 Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement Not-in-force EP1816901B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07002319T PL1816901T3 (pl) 2006-02-06 2007-02-02 Grzejnik rurowy z masą izolacyjną w przyłączeniowym obszarze końcowym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006005322A DE102006005322B4 (de) 2006-02-06 2006-02-06 Rohrheizkörper mit Isoliermasse im Anschlussendenbereich

Publications (3)

Publication Number Publication Date
EP1816901A2 EP1816901A2 (fr) 2007-08-08
EP1816901A3 EP1816901A3 (fr) 2009-01-14
EP1816901B1 true EP1816901B1 (fr) 2012-01-11

Family

ID=38006226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07002319A Not-in-force EP1816901B1 (fr) 2006-02-06 2007-02-02 Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement

Country Status (6)

Country Link
US (1) US7496284B2 (fr)
EP (1) EP1816901B1 (fr)
AT (1) ATE541433T1 (fr)
DE (1) DE102006005322B4 (fr)
ES (1) ES2380809T3 (fr)
PL (1) PL1816901T3 (fr)

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DE202008016439U1 (de) 2008-12-11 2009-03-12 Türk & Hillinger GmbH Heizpatrone
DE102009005481B3 (de) * 2009-01-21 2010-04-08 Bleckmann Gmbh & Co. Kg Verbindungselement für Heizwendel für Rohrheizkörper sowie Herstellungsverfahren hierfür
ITRM20100291A1 (it) 2010-05-31 2011-12-01 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata con elemento di sigillatura di estremita'
ITRM20110271A1 (it) * 2011-05-31 2012-12-01 I R C A S P A Ind Resistenz E Corazzate E Resistenza corazzata a due puntali di elettrodomestico
US9371841B2 (en) 2012-03-05 2016-06-21 Electrolux Home Products, Inc. Safety arrangement for an integrated heater, pump, and motor for an appliance
JP6355762B2 (ja) 2014-10-21 2018-07-11 エルジー エレクトロニクス インコーポレイティド 除霜装置及びそれを備える冷蔵庫
EP3109564B1 (fr) * 2015-06-24 2019-08-07 Bleckmann GmbH & Co. KG Dispositif de terminal pour un dispositif de chauffage tubulaire avec fusible intégré
ITUB20152625A1 (it) * 2015-07-30 2017-01-30 Irca Spa Resistenza corazzata e relativo processo di produzione
DE102019129735A1 (de) * 2019-11-05 2021-05-06 Türk & Hillinger GmbH Verfahren zur Herstellung einer elektrischen Heizvorrichtung und elektrische Heizvorrichtung
DE102020105782A1 (de) * 2020-03-04 2021-09-09 Türk & Hillinger GmbH Verfahren zur Herstellung einer elektrischen Heizvorrichtung und elektrische Heizvorrichtung
CN219612061U (zh) * 2023-04-10 2023-08-29 东莞市致文电子科技有限公司 一种加热棒

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Also Published As

Publication number Publication date
US20070194007A1 (en) 2007-08-23
ATE541433T1 (de) 2012-01-15
DE102006005322B4 (de) 2010-04-29
EP1816901A2 (fr) 2007-08-08
DE102006005322A1 (de) 2007-08-16
PL1816901T3 (pl) 2012-06-29
EP1816901A3 (fr) 2009-01-14
ES2380809T3 (es) 2012-05-18
US7496284B2 (en) 2009-02-24

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