EP1718115B1 - Rohrheizkörper mit konischer Heizleiterwendel - Google Patents

Rohrheizkörper mit konischer Heizleiterwendel Download PDF

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Publication number
EP1718115B1
EP1718115B1 EP06007617A EP06007617A EP1718115B1 EP 1718115 B1 EP1718115 B1 EP 1718115B1 EP 06007617 A EP06007617 A EP 06007617A EP 06007617 A EP06007617 A EP 06007617A EP 1718115 B1 EP1718115 B1 EP 1718115B1
Authority
EP
European Patent Office
Prior art keywords
spiral
heating
connexion
diameter
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.)
Active
Application number
EP06007617A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1718115A1 (de
Inventor
Gernot Teufl
Andreas Pleschinger
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 PL06007617T priority Critical patent/PL1718115T3/pl
Publication of EP1718115A1 publication Critical patent/EP1718115A1/de
Application granted granted Critical
Publication of EP1718115B1 publication Critical patent/EP1718115B1/de
Active 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49083—Heater type

Definitions

  • the present invention relates to a tubular heater for heating flowable media, in particular a tubular heater for household appliances according to the preamble of claim 1.
  • tubular heaters find everywhere use where a flowable medium is to heat. This is particularly the case with various household appliances, such as laundry washing machines, dishwashers, coffee machines, etc.
  • the length of the tubular heater and the diameter of its Schuleiterchtl, whereby its heating power is co-determined, depending on the desired performance characteristics are determined freely, since the available installation space for the tubular heater is not limited. Only in the area of the terminal ends of this tubular heater is a reduction of the heating power necessary because these areas are only partially or not at all washed by the medium to be heated, so that the heat generated there is not sufficiently dissipated. Thus, if the same heating power as in the remaining region of the tubular heating element would be generated in the region of the connection ends, this could lead to damage cause the heating coil to overheat. Therefore, in the connection area of the tubular heater, the connection elements, such as connecting bolts, etc., are guided into the interior of the jacket tube in order to prevent heat generation there. Therefore, the terminal end portions of the tubular heaters are also referred to as cold ends.
  • the heating conductor coil located in the interior of the jacket tube of the tubular heating element also experiences a curvature along its longitudinal axis, which leads to undefined deformation in the heating conductor coil. Furthermore, it comes to displacements of the coil, which leads by uneven introduction of heat to locally overheated areas.
  • FIG. 4 is the terminal end region of a known tubular heater, as for example from the US 969,635 is known, reproduced.
  • This tubular heater has a Bankleiterhausl 22 ', which is embedded in a jacket tube 10' in an electrically insulating material 20 '. Via a connecting bolt 24 ', the Schuleiter Listel 22' is connected on this side with a power source.
  • the connecting bolt is over the curvature region of the jacket tube 10 'out further into the interior of the tubular heater and the Schuleiterhausl 22' only there connected to the connection pin 24 '.
  • the heating power is further reduced, since only in the region of the heating conductor 22 'a corresponding heating power is available.
  • the diameter of the Edelleiterhausl 22 ' is adapted to the diameter of the connecting bolt 24'. Since the diameter of the bolt 24 'in relation to the inner diameter of the jacket tube 10' is low, even a small heating power can be achieved with given upper shell diameter.
  • US 3,259,732 shows a construction for a watertight completion of a tubular electric heater, wherein the sealing of a terminal end of the radiator is achieved by means of a compressed built-in sealing element made of silicone rubber.
  • US 3,387,363 proposed an alternative structure for a hermetic completion of a tubular heater.
  • DE 296 17 005 U1 shows a tubular heater whose heating coil has at least one point within the casing tube formed by the heating coil itself fuse section, which causes an interruption of the electric current flow in the heating coil when a limit temperature is exceeded. In one embodiment, this securing portion is provided in the region of at least one connecting element.
  • these documents show no curvature of a tubular heater in the region of the terminal end or do not deal with potential problems that can occur due to a cranking of the tubular heater in the transition of the heating coil from the working area to the connection element in the connection area.
  • the increase in the diameter of the heating conductor spiral, starting from the free end of the heating conductor spiral can take place at least in sections in the direction of the working region, at least in sections.
  • the increase in diameter of the Edelleiter Listel takes place at least partially leaps and bounds.
  • the diameter of the Edelleiterchtl 22 ' is adapted to the diameter of the connecting bolt 24'. Since the diameter of the bolt 24 'in relation to the inner diameter of the jacket tube 10' is low, even a small heating power can be achieved with given upper shell diameter.
  • the increase in the diameter of the heating conductor spiral, starting from the free end of the heating conductor spiral can take place at least in sections in the direction of the working region, at least in sections.
  • the increase in diameter of the Edelleiter Listel takes place at least partially leaps and bounds.
  • the Schwarzleiter mindfull, starting from the free end initially has a constant diameter, then the diameter increases steadily or suddenly in the direction of the work area, then in a constant Diameter, which extends over the entire work area to pass.
  • the sudden increase in the diameter in the connection end region of the heating conductor spiral can be effected by providing one or more step-like enlargements of the diameter of the heating conductor spiral.
  • the helical pitch of Schuleiter Listel is constant in this area.
  • the spiral pitch of the heating conductor coil in the region of at least one connection end region is at least partially variable.
  • connection element very different components can be used.
  • a particularly favorable connecting element is provided by a connecting bolt formed from a highly electrically conductive material, wherein the terminal bolt is inserted into the interior of the Edelleiter Listel and whose outer diameter corresponds at least in the region of the terminal end of the Schuleiterchtl the inner diameter of the Schuleiter Listel in this area.
  • the diameter of the heating conductor coil in the region of the connection element is constant.
  • Fig. 1 an inventive electric tubular heater R is shown schematically.
  • This first comprises a jacket tube 10 made of a good heat-conducting material, such as aluminum or corrosion-resistant steel on.
  • the jacket tube 10 and thus the tubular heater R, can be brought into a favorable shape for the particular application.
  • the jacket tube 10 is bent into an open circular ring.
  • the jacket tube 10 may have different cross-sectional profiles. How out Fig. 1 shows, the jacket tube 10 here has a substantially square cross section, wherein the corners of the square are flattened.
  • the tubular heater R has two terminal end portions 12, 14, via which the tubular heater R is connectable to a power source, not shown. Between the two connection end regions 12, 14 there extends a main heat emission region 16 of the tubular heater R. In the area of the two connection ends 12, 14, the tubular heater R is in each case formed with an offset 18. As a result, the connection end regions 12, 14 can be led out of the plane of the main heat emission region 16 of the tubular heater R upwards, thereby facilitating contact with the power source.
  • Fig. 2 can be removed that in the casing tube 10, an electrically insulating, but thermally conductive material 20, such as magnesium oxide is filled, which may optionally be compressed by a rolling and / or pressing.
  • the insulating material 20 encloses a Schuleiter Listel 22, the in Fig. 2 schematically and in Fig. 3 is shown in detail.
  • the wound heating conductor 22 has a connection region 22a and a working region 22b which corresponds at least approximately to the main heat emission region 16 of the tubular heater R already mentioned above.
  • the heating coil 22 viewed from its free end 22c, has a first portion 22d of constant diameter. This is followed, still within the connection area 22a, by a second section 22e, in which the diameter of the heating coil 22 is uniformly from the diameter in the first section 22d to a Diameter increases, which then continues constantly in the work area 22b.
  • the heating coil 22 has a pitch smaller than the pitch in the second portion 22e of the terminal portion 22a and the working portion 22d.
  • the pitch of the heating coil 22 in the second portion 22e of the terminal portion 22a may be different from that of the working portion.
  • the heating coil 22 also gives off heat in its connection region 22a, but the heat emission in this region is reduced in comparison with the working region 22b of the heating coil 22.
  • the heating coil 22 may be configured at its other end as well, as described above in connection with the in Fig. 2 has been described.
  • the heating coil 22 is connected via a connecting bolt 24 with the outside of the tubular heater R.
  • the connecting bolt 24 is made of a good electrically conductive material and has a substantially cylindrical cross section with a constant diameter.
  • the connecting bolt 24 is guided for bearing fixation by an insulating bead 26 made of ceramic or a similar material.
  • the connection between the heating coil 22 in the region of the first portion 22d of the connection region 22a and the connection bolt 24 is effected by welding.
  • Fig. 2 shows, the heating coil 22 is curved in the connection end portion 12 of the tubular heater R along its longitudinal axis L and thus follows the bend 18 of the tubular heater R.

Landscapes

  • Resistance Heating (AREA)
  • General Induction Heating (AREA)
EP06007617A 2005-04-25 2006-04-11 Rohrheizkörper mit konischer Heizleiterwendel Active EP1718115B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06007617T PL1718115T3 (pl) 2005-04-25 2006-04-11 Rurowy grzejnik ze stożkową spiralą grzejną

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005019211A DE102005019211B3 (de) 2005-04-25 2005-04-25 Rohrheizkörper mit konischer Heizleiterwendel

Publications (2)

Publication Number Publication Date
EP1718115A1 EP1718115A1 (de) 2006-11-02
EP1718115B1 true EP1718115B1 (de) 2009-09-16

Family

ID=36758399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06007617A Active EP1718115B1 (de) 2005-04-25 2006-04-11 Rohrheizkörper mit konischer Heizleiterwendel

Country Status (7)

Country Link
US (1) US7538301B2 (zh)
EP (1) EP1718115B1 (zh)
CN (1) CN1856192B (zh)
AT (1) ATE443423T1 (zh)
DE (2) DE102005019211B3 (zh)
ES (1) ES2333147T3 (zh)
PL (1) PL1718115T3 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391600B (en) 2001-04-27 2005-09-21 Fiberspar Corp Buoyancy control systems for tubes
US8839822B2 (en) 2006-03-22 2014-09-23 National Oilwell Varco, L.P. Dual containment systems, methods and kits
EP2010755A4 (en) * 2006-04-21 2016-02-24 Shell Int Research HEATING SEQUENCE OF MULTIPLE LAYERS IN A FORMATION CONTAINING HYDROCARBONS
US8001672B2 (en) * 2007-10-02 2011-08-23 Advanced Magnet Lab, Inc Methods of fabricating a conductor assembly having a curvilinear arcuate shape
CA2641492C (en) 2007-10-23 2016-07-05 Fiberspar Corporation Heated pipe and methods of transporting viscous fluid
DE102009005481B3 (de) * 2009-01-21 2010-04-08 Bleckmann Gmbh & Co. Kg Verbindungselement für Heizwendel für Rohrheizkörper sowie Herstellungsverfahren hierfür
CA2690926C (en) 2009-01-23 2018-03-06 Fiberspar Corporation Downhole fluid separation
US8955599B2 (en) 2009-12-15 2015-02-17 Fiberspar Corporation System and methods for removing fluids from a subterranean well
WO2011075538A1 (en) 2009-12-15 2011-06-23 Fiberspar Corporation System and methods for removing fluids from a subterranean well
US9371841B2 (en) 2012-03-05 2016-06-21 Electrolux Home Products, Inc. Safety arrangement for an integrated heater, pump, and motor for an appliance
US10477622B2 (en) * 2012-05-25 2019-11-12 Watlow Electric Manufacturing Company Variable pitch resistance coil heater
US9113501B2 (en) 2012-05-25 2015-08-18 Watlow Electric Manufacturing Company Variable pitch resistance coil heater
MX358020B (es) 2012-08-10 2018-08-02 Nat Oilwell Varco Lp Conectores de tuberia continua compuesta.
CN105407768B (zh) * 2013-03-15 2020-01-21 德卢卡烤炉技术有限责任公司 包括丝网加热片的流体加热器
US10010238B2 (en) * 2015-02-03 2018-07-03 Haier Us Appliance Solutions, Inc. Fluid circulation component with a layered heating assembly for a washing appliance
PL3069620T5 (pl) * 2015-03-19 2021-06-28 Fontem Holdings 1 B.V. Elektroniczne urządzenie do palenia
EP3260796B1 (en) * 2016-06-20 2020-05-06 Bleckmann GmbH & Co. KG Heating system component providing a compact temperature sensor design
CN108248077A (zh) * 2017-12-04 2018-07-06 惠阳航空螺旋桨有限责任公司 一种桨叶除冰加热片成型方法
PL3620097T3 (pl) * 2018-09-07 2021-12-27 Bleckmann Gmbh & Co. Kg Układ grzewczy do ogrzewania płynnego czynnika
DE102019127689A1 (de) * 2019-10-15 2021-04-15 Türk & Hillinger GmbH Elektrischer Rohrheizkörper mit Anschlussbolzen und Herstellungsverfahren für elektrische Rohrheizkörper mit Anschlussbolzen

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DE7341597U (de) * 1974-02-21 Siemens Ag Elektrischer Rohrheizkörper
DE909487C (de) * 1939-01-10 1954-04-22 Aeg Elektrischer Mantelrohrheizkoerper
US2727979A (en) * 1953-01-06 1955-12-20 Dominion Textile Co Ltd Immersion heaters
DE943851C (de) * 1953-04-30 1956-06-01 Voigt & Haeffner Ag Heizleiterwendel vorzugsweise fuer Rohrheizkoerper
CH360144A (de) * 1957-03-09 1962-02-15 Bleckmann & Co Elektrischer Rohrheizkörper
US2978563A (en) * 1958-06-12 1961-04-04 Tuttle Electric Products Inc Exposed resistance electric heater
DE1081720B (de) * 1959-06-18 1960-05-12 Continental Elektro Ind Ag Elektrischer Rohrheizkoerper fuer Gluehkerzen von Brennkraftmaschinen
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Also Published As

Publication number Publication date
ES2333147T3 (es) 2010-02-17
DE102005019211B3 (de) 2006-11-30
CN1856192A (zh) 2006-11-01
US7538301B2 (en) 2009-05-26
ATE443423T1 (de) 2009-10-15
CN1856192B (zh) 2010-12-01
EP1718115A1 (de) 2006-11-02
PL1718115T3 (pl) 2010-02-26
US20060249508A1 (en) 2006-11-09
DE502006004833D1 (de) 2009-10-29

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