EP1152639B2 - Elektrische Heizeinheit, insbesondere für flüssige Medien - Google Patents

Elektrische Heizeinheit, insbesondere für flüssige Medien Download PDF

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Publication number
EP1152639B2
EP1152639B2 EP01110424.7A EP01110424A EP1152639B2 EP 1152639 B2 EP1152639 B2 EP 1152639B2 EP 01110424 A EP01110424 A EP 01110424A EP 1152639 B2 EP1152639 B2 EP 1152639B2
Authority
EP
European Patent Office
Prior art keywords
heating
temperature sensor
contacts
support
conductor
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.)
Expired - Lifetime
Application number
EP01110424.7A
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German (de)
English (en)
French (fr)
Other versions
EP1152639A3 (de
EP1152639A2 (de
EP1152639B1 (de
Inventor
Volker Block
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
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Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1152639A2 publication Critical patent/EP1152639A2/de
Publication of EP1152639A3 publication Critical patent/EP1152639A3/de
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Publication of EP1152639B1 publication Critical patent/EP1152639B1/de
Publication of EP1152639B2 publication Critical patent/EP1152639B2/de
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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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to an electric heating unit, in particular for liquid media, according to the preamble of claim 1.
  • the carrier carries not only an applied in thick-film technology electrical heating resistor, but also a heating zone associated, designed to deliver an electrical temperature signal temperature sensor in the form of a likewise applied in thick-film technology Meßwiderstandsbahn.
  • the heat conductor contacts provided for the electrical connection of the heating resistor are fixedly arranged on the carrier in an unheated area at the edge of the carrier outside the heating zone occupied by the electrical heating resistor. They can be contacted there, for example, by an edge plug which can be plugged over the edge of the carrier.
  • the sensor contacts provided for the electrical connection of the measuring resistance track are arranged in a central, unheated zone of the carrier in the immediate vicinity of a fastening bolt, which serves for the mechanical fastening of the heating element in a cooktop.
  • a fastening bolt which serves for the mechanical fastening of the heating element in a cooktop.
  • insulated feedthrough elements are provided in the carrier for the electrical lines required for connection of the temperature sensor, for example in the form of ceramic tubes. Also in this electric heating unit electrical connection and installation are relatively complicated.
  • the DE 196 48 199 A discloses a glass-ceramic cooktop, on the underside of which flat electrical conductor tracks are provided, which serve for temperature determination and for capacitance measurement.
  • An electrical contact to the conductor tracks via resilient contact tongues, which are held in a terminal block and are provided with a connecting cable. These contact tongues bear against a free end of the conductor tracks.
  • the DE 29702813 U1 discloses an electric heating unit having the features of the preamble of claim 1. In this case, lead wires are welded or soldered to pads.
  • the invention has for its object to provide an in particular for heating liquid media provided electric heating unit, according to the preamble of claim 1, which is electrically connected with minimal effort.
  • the invention proposes an electric heating unit with the features of the characterizing part of claim 1.
  • Advantageous developments are specified in the dependent claims. The wording of all claims is incorporated herein by reference.
  • an electric heating unit has a support on which at least one electrical heating resistor applied in flat conductor technology, in particular in thick-film technology, is permanently attached to form at least one heating zone. Furthermore, at least one of the heating zone associated temperature sensor is fixedly mounted on the carrier, which is designed to deliver electrical temperature signals, so that the signals of the temperature sensor are electronically evaluated.
  • the carrier are assigned to the electrical connection of the heating resistor ThompsonleiterTypee and the electrical connection of the temperature sensor sensor contacts and the Schuleitereruttone and sensor contacts are spatially so closely summarized in a terminal area that they can be contacted by a single, common terminal device.
  • the complete connection of the electric heating unit is sufficient for attach the appropriately adapted terminal device to the heating unit to connect both the electrical power supply for the heating element or the heating conductor, as well as to provide a signal-conducting connection from the temperature sensor to a temperature signal evaluation device.
  • the preferably located in the edge region of the carrier in a heating resistance zone lying connection area advantageously has a lateral extent of a maximum of only a few centimeters, for example less than 5 cm or 4 cm, so that all carrier fixed contacts together and possibly in one operation manually or mechanically by means of a suitable , manually or mechanically well manipulated connection device can be contacted.
  • the complete electrical connection of the heating unit via a single, common group connection contact is possible, whereby the effort in contacting the heating unit is minimal.
  • the at least one temperature sensor is also in flat conductor technology, in particular in thick-film technology, mounted on the carrier, whereby a particularly flat design can be realized.
  • it may be a measuring resistor, that is to say a heat-sensitive conductor with strongly negative (NTC) or strongly positive (PTC) temperature coefficients of the electrical resistance.
  • NTC strongly negative
  • PTC strongly positive
  • the carrier is preferably designed for direct contact with the medium to be heated and accordingly has one or more heating surfaces, with which it can come into surface contact with the surface to be heated medium.
  • the carrier has a preferably plate-shaped, metallic carrier core, for example made of stainless steel, on which at least one insulating layer is applied, which carries the heating resistor and the temperature sensor.
  • the insulating layer may be applied in particular in the thick-film process, for example by screen printing. Its thickness can be in the range of e.g. 20 microns to 250 microns, for example between 50 microns and 100 microns.
  • the outer surfaces of the carrier core facing away from the heating resistor may be partially or completely provided with a coating applied, for example, in the thick-film method, in order to electrically insulate the carrier and / or to protect it against corrosion by the medium to be heated.
  • metallic carrier is provided according to a preferred development that at least one grounding contact for grounding of the heater is provided in the connection area, ie in the immediate vicinity of the Schuleiternessen and the sensor contacts.
  • connection area ie in the immediate vicinity of the Schuleiternessen and the sensor contacts.
  • metallic carrier core and insulating layer can be provided for this purpose that it has at least one recess or interruption in the connection region for electrical contacting of the carrier core or for connecting a grounding contact to the carrier core. Since in the region of Isolier Anlagenausappel aus the carrier core is directly accessible, this area is also used for zugêt attachment of a separate connection device on the carrier by welding.
  • the fixed to the carrier surface heat conductor contacts and sensor contacts and possibly the at least one grounding contact are contacted by the connection of the heating element that soldered directly to the contact surfaces wires, contact elements o. The like., Welded or otherwise electrically connected fixedly connected to the contact surfaces become.
  • the carrier mechanically fixed plug contact device with plug contacts, which are electrically connected to the SchuleiterCounten, the sensor contacts and possibly with the ground contacts.
  • Such a group plug contact device is expediently formed by a single, separately producible by the carrier, which is fixedly attached after completion of the carrier provided with its electrically active components and serves as a component of a detachable electrical connector, which provides a particularly convenient electrical connection in particular the assembly allows.
  • the metallic plug contacts are connected to the respectively associated, carrier-fixed contacts or contact surfaces in the manner of a welded joint, a solder joint and / or a (tool-free and possibly cold producible) Anpreßthetic.
  • the plug contacts are preferably formed as flat tabs lying parallel to one another, which are arranged in a plug chamber formed in a housing of the plug contact device. They are preferably in a predetermined grid with a predetermined distance from each other or a multiple thereof parallel to each other and in series next to each other in the plug chamber. Characterized in that several belonging to a supply or output line harness or wiring harness blade terminals are arranged inside a plug chamber, they are completely protected and against both mechanical, and against the electrical safety influencing conditions.
  • the connections can be provided in a very narrow, for example, a 5 mm grid, without short circuits or overheating are to be feared.
  • the plug contact device has a mechanical coding, which serves to ensure a confusion mating the carrier mounted on the plug contact device with a complementary, provided on a lead wire connector socket.
  • the mechanical coding may, for example, have recesses and / or projections running parallel to the plug-in direction, which are different in their number, dimension and / or position relative to the plug-in chamber in the case of plug-in devices to be connected differently.
  • the output from the temperature sensor, electrical temperature signal can display and / or be used to control or control the temperature of the heating element.
  • the heating unit has an integrated overload protection which, independently of such an evaluation of the temperature signal protect the heating element from overloading and possibly damage and thus may optionally serve as an integrated second security.
  • the overload protection can be designed in particular in the form of at least one weak point in the manner of a fuse, which is arranged in the conductor path between the Schuleiternessen.
  • It may be, for example, a printed resistor having a lower electrical resistance than the heating conductor, for example, only 1% to 2% of the Schuleiterwiderstandes and is in series in a supply line of the supply voltage on the carrier.
  • the area performance of the series resistor is suitably chosen to be higher in the cold state than the area performance of the heating, so that in the case of improper operation, for example, when dry the heating unit, this resistor destroyed and the heater is turned off.
  • the weak point can also be formed by a conductor narrowing in the course of the heating resistor.
  • the shape of the carrier and the corresponding attachment of the heating resistor and the temperature sensor can be selected according to the intended application. For example, for egg cooker, water heater o. The like. Provided substantially flat, especially round carrier discs. Possibly.
  • a carrier may have at least one location of a preferably made by deformation of the carrier stiffening against vibrations, in particular in the form of a bent edge portion. As a result, the carrier can be stiffened so far against externally induced vibration forces that the electrical functional devices attached thereto, such as the heating conductor and the temperature sensor, suffer no damage caused by vibration.
  • the carrier is designed as a carrier tube, to which, preferably on its outside, the heating conductor or heating resistor and the at least one temperature sensor are mounted. It may in particular be such that at least one temperature sensor is mounted in the longitudinal direction of the tube on both sides of a heating zone heated by the heating element or conductors. As a result, the temperature of the medium to be heated flowing through the pipe can be measured on the inlet side and on the outlet side. By evaluating these temperature signals, for example, the flow rate can be determined.
  • heating units it is possible to apply the heating in a simple circuit system or in several heating circuits on the insulating support.
  • the power can be distributed to the power circuits as desired.
  • the heating conductor (s) of a heating circuit can be arranged serially or in parallel, wherein preferably a parallel arrangement is selected so that in the event of a failure of a heating conductor, the heating unit remains functional as such.
  • suitable choice of the heating circuits and different voltage variants can be switched.
  • FIG. 1 shows a section of the bottom of an electric heating unit 1, which may for example form the bottom of a kettle.
  • the heating unit comprises a circular, flat carrier 2, the upper side 3 forms a heating surface, which can come into direct contact with the liquid medium to be heated.
  • the carrier has a metallic carrier core 4 in the form of a circular stainless steel plate, which is provided by a molding process with a circumferential, upwardly directed drawing radius or edge 5, which serves, inter alia, the stiffening of the carrier against externally introduced vibrational forces.
  • an insulating layer 6 is applied by screen printing, which has vitreous and ceramic phases and which was prepared by heat treatment of a corresponding thick-film paste.
  • the firmly adhered to the underside of fortunereprs 4 insulating layer has a substantially uniform thickness of about 80 microns and covers the entire flat bottom except for two each substantially rectangular recesses 7, 8, whose size is in each case about 1/2 cm 2 and in the region of the metallic bottom of the carrier core 4 is exposed.
  • an electrical heating resistor 10 is arranged firmly adhering to surface contact with this.
  • the heating resistor or heating conductor 10 forms the current-carrying heat source of the electric heating unit 1 and is applied in thick-film technology by screen printing and subsequent heat treatment to the insulating layer 6 and the electrically insulating support 2.
  • the heating resistor 10 has a plurality of concentric to each other, circular arc-shaped Knileiterbahnsegmente which heat a shape of a not fully closed ring occupying heating zone, which is bounded in the radial direction outside of outer Kleinwiderstandsbahnsegmenten 12, 13 and inwardly by an inner Edelwiderstandsbahnsegment 14.
  • a temperature sensor 20 is also applied to the insulating layer 6 or the carrier 2 in the thick-film process at a radial distance from the heating zone occupied by heating resistors.
  • the temperature sensor is essentially formed by a meandering conductor track 21 made of electrical resistance material with a strong positive temperature coefficient of electrical resistance (PTC resistor) and may for example be made essentially of platinum.
  • PTC resistor positive temperature coefficient of electrical resistance
  • the closely meandering course of the sensor material conductor track allows a very long conductor track of the resistance material to be accommodated in a small space on the relatively small, essentially rectangular area of the temperature sensor, so that the resistance of the temperature sensor changes significantly measurably with temperature changes.
  • the two ends of the conductor 21 are connected by means of thick-film technology on the insulating layer 6 applied connecting tracks 22, 23 with thick-film technology on the carrier applied sensor contact surfaces, of which only the sensor contact surface 24 in Fig. 1 is recognizable.
  • the connecting tracks 22, 23 may, like the connecting strips 17 between the Schustoffbahnsegmenten and the connecting tracks 18 between the SchuleiterCounten 19 and the resistance material by a material having a relatively low electrical resistance, such as silver, be formed.
  • a special feature lies in the fact that the Schuleitertive horr 19 for electrical connection of the heating resistors to a control unit of the heating unit 1 having device and the sensor contact surfaces 24 for connection of the temperature sensor 20 to the control unit in a relatively small area connection area 26 with a small lateral distance to each other.
  • the connection region lies within the heater-conductor-free zone 16 between the mutually facing circumferential ends of the Edelwiderstandsbahnen and also comprises the two recesses 7, 8, in the region of the stainless steel core 4 of the carrier can be contacted to ground the stainless steel carrier core.
  • the connection area has a radial length of about 4 cm and a circumferential width of a maximum of about 3 cm. Since all the contacts required for the electrical connection of the heating unit are spatially concentrated in this area, the overall electrical connection of the heating unit can be made conveniently by making all the necessary electrical connections in the connection area 26.
  • the heating unit 1 is fully electrically contacted via a single plug-in connection, wherein the easy for example during assembly producible and at any time, for example, for repair purposes detachable connector all connections for the electrical heating resistor, includes all connections for the temperature sensor 20 and also connections for grounding the heating unit.
  • the carrier-solid part of the connector is formed by a plug contact device 30, which has a plastic housing 31 in the form of a connection side open towards the carrier and by means of a bottom 32 largely closed box.
  • the standing perpendicular to the support surface walls of the housing and the bottom include a connector chamber, are arranged in the plug contacts in the form of flat tabs 34 to 38, which are aligned parallel to each other, perpendicular to the floor 32 protrude outward and in a row with a uniform grid spacing of 5 mm are arranged in the example.
  • Another flat plug contact 39 is housed outside the actual plug chamber within a recess of a housing attached to the Stim cover 40.
  • the tabs 34 to 39 are each formed by the same sized head portions of metallic contact elements which pass through the bottom 32, are firmly anchored in the ground and each foot sections 41 to 44, which are arranged and dimensioned such that the foot sections in positionally correct placement of the plug contact device lie on the support in the region of the contact surfaces 19 and 24 or in the region of the recesses 7, 8.
  • the electrical contact between the thick-film contacts 19, 24 for the connection of the heating resistors or the temperature sensor and the markable as a male connector plug contact device can be done with a welding process, a soldering process and / or in a pressing process. By this contacting a mechanical attachment of the plug-in contact device is created on the carrier at the same time.
  • the foot sections 43, 44 of the first or last plug contact of the male connector are attached directly to the stainless steel core 4 of the carrier 2 by welding.
  • a grounding of the stainless steel carrier by contacting the associated flat tabs 34 and / or 39 is possible.
  • a reliable strain relief for the male connector 30 is ensured so that it is ensured that even with repeated production and release of the connector or unfavorable cable management of the connected harness damage in the range of plug contact 30 is largely excluded.
  • the connections leading to the thick-film contacts 19, 24 are relieved of external mechanical forces.
  • a mechanical coding is provided on the plug-in contact device 30, which ensures that only a wire harness or wiring harness with the right, associated socket can be connected.
  • the mechanical coding comprises in the perpendicular to the bottom 32 and the support surface aligned side walls of the housing 31 formed recesses 46 and projections 47, which may be formed differently with respect to different plug devices with respect to number, dimension and / or position relative to the plug-in chamber, that only the correct socket is inserted.
  • Fig. 3 shows very schematically a development of the outside of such a flow heater.
  • the carrier consists essentially of a stainless steel tube 49, on the outside of an insulating layer 54 was applied in thick film technology. This has two recesses 56, 57 in the connection area 55, in the region of which the metallic carrier material is exposed.
  • an electrical heating resistor 58 is applied in thick-film technology
  • the Schuleiterbahn is applied a meandering course with parallel to the longitudinal direction 53 long and circumferentially short sections and heating a heating zone, which covers the largest part of the circumference, for example at a circumferential angle between 300 ° and 340 °, heated.
  • the insulating layer 54 On the insulating layer 54 also three temperature sensors 59, 60, 61 are applied in thick-film technique, which are spaced apart in the flow direction 53. The two arranged at the axial height of the terminal region temperature sensors 59, 60 in the flow direction in front of the determined by the Schuleiterwindungen 58 heating zone, while the third temperature sensor 61 is located behind the heating zone. This conductor arrangement can be protected outside by a further insulating layer.
  • a firmly attached to the support plug contact device 65 is analogous to that in connection with FIGS. 1 and 2 connector means 30 described the electrical connection of both the three temperature sensors 59, 60, 61, and the heating conductor 58 with a wire harness, not shown, which contains both the supply lines for the heating, as well as the signal lines for the temperature detection.
  • the longitudinally of the tube elongated, arranged upstream of the heating resistor 58 in the inlet region of the tube male connector 65 includes nine tabs, of which the Flachstekertab 66th for connecting the heating conductor, the three Flachstekercrue 67 for connecting the temperature sensor and the tabs 68 of the grounding of the carrier is used, to which the flat tongue 68 forming contact element in the edge recess 56 of the insulating layer is welded directly to the metallic tube 50 of the flow heater.
  • a special feature of this formed in tubular heating element is that thanks to the plurality of temperature sensors, of which at least one (sensor 59, 60) in the longitudinal direction 53 in front of the heating zone and at least one behind the heating zone, the temperature of the medium to be heated at the inlet and at Outlet of the heating is determinable. From these two temperature values, the flow rate can be derived.
  • the heating unit 50 includes e.g. with the temperature sensors 59 and 61, an integrated sensor for flow measurement and for determining the flow rate. It is expedient here if the heat-sensitive conductor materials of the temperature sensors have a distance from the heating conductor which corresponds at least to the simple thickness of the carrier material.
  • a distance of a temperature sensor provided for determining the temperature of the medium is preferably at least twice the thickness of the carrier material. This ensures that the temperature at the location of the sensor is essentially determined by the temperature of the medium to be measured, while the heat generated at the heat conductor is mainly deducted to the medium and practically can not get directly to the temperature sensor.
  • heat-sensitive conductor it is also possible, with the help of one or more heat-sensitive conductor to detect the emergence of an overtemperature to turn off to secure the heating element against damage to this via the electronic controller.
  • the heat-sensitive conductor of a temperature sensor provided for this purpose, e.g. the sensor 60 has a smaller distance to the heating conductor than twice the thickness of the carrier material.
  • the heat-sensitive conductor may be e.g. also be arranged below or above the heating conductor and be electrically insulated from it by an insulator layer.
  • a printed fuse resistor 69 is provided, which is connected in series in the supply line of the supply voltage for the heating conductor 58 and thus flows through the supply current.
  • the material of the fuse resistor 69 has a higher positive temperature coefficient than the material of the heating conductor, so that its resistance increases with increasing temperature than that of the heating conductor.
  • the surface power of the series resistor 69 is preferably selected to be higher in the cold state than the surface power of the heating element. In the case of improper use of the heating unit, for example during dry running, ie during operation without heat loss, this resistance is destroyed and the supply line between terminal 65 and heating resistor 58 is interrupted.
  • Such a weak point operating in the manner of a fuse can of course also be used in embodiments of the type described in US Pat Fig. 1 and 2 be provided kind shown.

Landscapes

  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP01110424.7A 2000-05-03 2001-04-27 Elektrische Heizeinheit, insbesondere für flüssige Medien Expired - Lifetime EP1152639B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10021512 2000-05-03
DE10021512A DE10021512A1 (de) 2000-05-03 2000-05-03 Elektrische Heizeinheit, insbesondere für flüssige Medien

Publications (4)

Publication Number Publication Date
EP1152639A2 EP1152639A2 (de) 2001-11-07
EP1152639A3 EP1152639A3 (de) 2004-07-21
EP1152639B1 EP1152639B1 (de) 2005-11-30
EP1152639B2 true EP1152639B2 (de) 2015-10-21

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EP01110424.7A Expired - Lifetime EP1152639B2 (de) 2000-05-03 2001-04-27 Elektrische Heizeinheit, insbesondere für flüssige Medien

Country Status (4)

Country Link
EP (1) EP1152639B2 (es)
AT (1) ATE311734T1 (es)
DE (2) DE10021512A1 (es)
ES (1) ES2254283T5 (es)

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PL3145273T3 (pl) 2015-09-21 2020-03-31 E.G.O. Elektro-Gerätebau GmbH Urządzenie grzewcze do ogrzewania wody i sposób działania takiego urządzenia grzewczego
DE102015218121A1 (de) 2015-09-21 2017-03-23 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung zum Erhitzen von Wasser und Verfahren zum Betrieb einer solchen Heizeinrichtung
DE102015223493A1 (de) 2015-11-26 2017-06-01 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung
EP3540329B1 (en) 2016-06-20 2021-04-28 Bleckmann GmbH & Co. KG Heating system component providing a compact temperature sensor design
DE102018100635A1 (de) * 2018-01-12 2019-07-18 Webasto SE Wärmetauscher und Verfahren zum Herstellen eines solchen Wärmetauschers
DE102018213869B4 (de) 2018-08-17 2020-03-05 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
US11044789B2 (en) * 2018-10-11 2021-06-22 Goodrich Corporation Three dimensionally printed heated positive temperature coefficient tubes
DE102020206113A1 (de) 2020-05-14 2021-11-18 G. Maier Elektrotechnik GmbH Sitz- oder Liegemöbel für den Außenbereich und Anordnung
EP4009741A1 (en) * 2020-12-03 2022-06-08 Bleckmann GmbH & Co. KG Heating system component for sensing a first and second temperature
CN113198558A (zh) * 2021-04-30 2021-08-03 深圳市锦瑞生物科技有限公司 一种预热装置
EP4116120A1 (en) * 2021-07-08 2023-01-11 MAHLE International GmbH Electric heating device, in particular for an electric vehicle

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DE19611405A1 (de) * 1996-03-22 1997-09-25 Bosch Siemens Hausgeraete Anordnung für Strahlungsheizungen
DE19643698C2 (de) * 1996-05-11 2000-04-13 Aeg Hausgeraete Gmbh Vorrichtung zur Abschirmung von für kapazitive Messungen verwendeten Leiterbahnen eines Kochfeldes
DE19738020A1 (de) * 1997-08-30 1999-03-04 Ceramtec Ag Heizkörper zum Heizen einer Bügeleisensohle
DE19741093B4 (de) * 1997-09-18 2006-05-04 Stiebel Eltron Gmbh & Co. Kg Heizflansch für einen wandinstallierbaren Warmwasserbereiter, insbesondere Kochendwassergerät
DE19823941A1 (de) * 1998-05-28 1999-12-23 Siemens Ag HF-Steckverbindungsvorrichtung
EP0967838B1 (en) * 1998-06-25 2005-07-27 White Consolidated Industries, Inc. Thin film heating assemblies

Also Published As

Publication number Publication date
ES2254283T5 (es) 2016-02-05
ES2254283T3 (es) 2006-06-16
EP1152639A3 (de) 2004-07-21
ATE311734T1 (de) 2005-12-15
DE10021512A1 (de) 2001-11-08
EP1152639A2 (de) 2001-11-07
EP1152639B1 (de) 2005-11-30
DE50108215D1 (de) 2006-01-05

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