EP1700514B1 - Sicherungsvorrichtung für eine heizvorrichtung, heizvorrichtung und durchlauferhitzer - Google Patents

Sicherungsvorrichtung für eine heizvorrichtung, heizvorrichtung und durchlauferhitzer Download PDF

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Publication number
EP1700514B1
EP1700514B1 EP04819705A EP04819705A EP1700514B1 EP 1700514 B1 EP1700514 B1 EP 1700514B1 EP 04819705 A EP04819705 A EP 04819705A EP 04819705 A EP04819705 A EP 04819705A EP 1700514 B1 EP1700514 B1 EP 1700514B1
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EP
European Patent Office
Prior art keywords
heating
fuse
heating element
fluid
safety device
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
EP04819705A
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German (de)
English (en)
French (fr)
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EP1700514A1 (de
Inventor
Martin Stickel
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL04819705T priority Critical patent/PL1700514T3/pl
Publication of EP1700514A1 publication Critical patent/EP1700514A1/de
Application granted granted Critical
Publication of EP1700514B1 publication Critical patent/EP1700514B1/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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H05B1/0205—Switches using a fusible material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply

Definitions

  • the application relates to a safety device for a heating device for fluids, wherein the heating device has a heating element and a heat transfer element, which is for transmitting the heat generated by the heating element to the fluid with the heating element and the fluid in a thermally conductive connection, with a fuse, the Heating circuit of the heating element interrupts when the heat transfer element can no longer transfer thermal energy into the fluid.
  • the application further relates to a heating device and a water heater with a heater of the aforementioned type.
  • Heaters and water heaters of the type mentioned are used for example in dishwashers or washing machines.
  • the fluid heaters are predominantly used today based on tubular heaters.
  • Tubular heaters usually consist of a resistance wire, which is arranged centrally in a stainless steel tube, so that no voltage breakdowns on this are possible.
  • an insulation-resistant material usually a magnesium oxide powder.
  • tubular heaters can be done in different ways. For example, it can be arranged in a flow heater through which the fluid flows, lying in fluid flow.
  • the tubular heater can also be arranged on a fluid flow pipe through which the fluid flows, optionally with the interposition of a heat transfer element.
  • Another simple variant provides to let the tubular heater lying in the interior of a container surrounded by the fluid.
  • the heater has a certain inertia due to the design of the tubular heater. Due to low achievable area performance of the tubular heater resulting in large component dimensions. Problems also often arise when contacting the tubular heater and other associated components such as a switching element that is to prevent Tiocken convinced the heater or the water heater.
  • fuses are used for mechanical protection of the heaters. These are made to melt by thermal energy input and thus interrupt the heating circuit, whereby the heater is disconnected from the voltage.
  • a fluid heating apparatus having at least one heating element having a heat transfer element in thermal communication with the heating element and the fluid for transferring heat generated by the heating element to the fluid.
  • a fluid guide tube on the outside of the heating element is applied.
  • a temperature monitoring device in the form of an NTC resistor is provided, which is connected to a control device for controlling the heating element.
  • an overload protection in the form of a fuse is disclosed in addition, which shuts off the heating element during drying.
  • the object of the present invention is therefore to provide a safety device for a heating device for fluids, which is able to use a heating device with low heat capacity, such as. an electrical resistance heater in the form of a thick-film element, which have a fast response to protect reliably in a simple and cost-effective manner. It is further an object of the present invention to provide a heating device and a Druchlauferhitzer that are effectively protected in a drying cycle.
  • the safety device in addition to the fuse to another thermal heater, which is in thermal communication with the fuse and the fuse additionally supplies a limited amount of heat to accelerate the triggering process of the fuse.
  • the fuse is triggered by thermal energy input in the fuse device according to the invention, ie the heating circuit separated.
  • the separation of the heating circuit would, as in the in the DE 199 34 319 A1
  • the time until the release of the fuse would possibly be so long that a realized in the form of an electrical resistance heater heating device, which has only a small heat capacity, would be destroyed.
  • a ground fault would be conceivable, which would be triggered, for example, in the household usual fault current switch.
  • the provision of the thermal heater now says that the fuse triggers before the destruction of the heater and the response of the above-mentioned residual current switch in the household. The shortening of the time can be realized by Va Image the additional heater.
  • the safety device responds exclusively to the heat emitted by the heating device, more precisely the heating element.
  • the amount of heat generated by the thermal heater is the fuse also supplied in normal operation, wherein the amount of heat supplied in normal operation is less than the energy required to trigger the fuse.
  • the thermal heater is not, as in the DE 199 46 826 A1 the case is triggered due to a control signal detecting a current in the heating circuit but due to the heat generated in the heating element.
  • On an evaluation and control logic dispenses with the safety device according to the invention completely. The detection of the rated current of the heater, in particular of the heating element, would be able to accomplish due to the very high, necessary currents only with considerable effort.
  • thermal heating device In order to obtain the simplest and most cost-effective arrangement, electronic monitoring is dispensed with in the security device according to the invention. In order nevertheless to ensure a reliable and rapid release of the securing device, it is provided to operate the thermal heating device even during normal operation of the heating device. This can be accomplished particularly simply by the fact that the thermal heating device is formed by the heating element. It is preferred if the heating element has a number of heating sections and the thermal heating device is formed by at least one of the heating sections.
  • the amount of heat supplied by the thermal heating device of the fuse thus essentially depends on how much is removed via the fluid heated by the heating device.
  • the thermal heater thus generates both in normal operation as well as in an error basically the same amount of heat.
  • most of the amount of heat generated by the thermal heater is dissipated via the fluid. If this is no longer present, i. If the heating device is operated in the drying cycle, the amount of heat can no longer be dissipated, as a result of which the thermal heating device heats the fuse very quickly and reliably separates the heating circuit.
  • the fuse is arranged on the heat transfer element of the heating device in a region in which the heating sections have the smallest radii. In these areas, the current concentration is highest, which causes local overheating to occur fastest. The speed with which triggers the fuse, so it can also be adjusted by, in which area of the heater this is arranged.
  • the melting device is soldered into the heating circuit of the heating element, wherein the contact points formed thereby electrical and mechanical support of the fuse takes place and wherein the interruption of the heating circuit in the region of at least one contact point.
  • the separation of the heating circuit can be done by melting only one contact point. It is preferred if both contact points are separated during melting in about the same time.
  • the fuse in the installed position relative to the heating element and the heat transfer unit is arranged such that the separation of the solder joint takes place with the aid of gravity acting on the fuse.
  • the triggering of the fuse is caused on the one hand by the very high heating of the heater, in particular of the heating element in the fuse, as liquefied by the self-heating of the fuse, the solder at the contact points of the fuse. Due to the installation position downwards, the weight of the fuse exceeds the holding force of the solder, whereby the fuse irreversibly drops down. This reliably stops the heating circuit.
  • the heating element has a resistor with a positive temperature characteristic.
  • the heating element thus has a PTC characteristic. This means that, to some extent, overheating is limited if a drying cycle was unavoidable.
  • the heating element is preferably formed by an electrical resistance heater, in particular a thick film heater. These can not be used because of the low heat capacity sluggish fuses, since the period until the response or release of the fuse is too long and the heater, more precisely, the heating element, due to excessive thermal stress to be destroyed.
  • an electronically operating temperature monitoring device can be provided, which regulates the energy supply by the heating element as a function of the temperature of the fluid.
  • the electronically operating temperature monitoring device can be designed, for example, in the form of an NTC resistor, whose resistance value is detected as a function of the temperature and for controlling or regulating the heating device is used.
  • the temperature monitoring device is an independently operating fuse, which should usually also detect a drying cycle of the heater and should accordingly switch off the heating element. In the event that the heater has a defect and does not recognize it, the fuse in conjunction with the thermal heater is a final, reliable and easy protection for the heater.
  • the temperature monitoring device and the fuse with respect to their monitoring function have no mutual interaction or influence. This means, with other wading, the result obtained by the electronic temperature monitoring device is not used to control the fuse or the thermal heating device and to cause the fuse to trip.
  • the heating device according to the invention for installation in a water heater has at least one designed as an electrical resistance heating heating element and at least one politiciansüzustragungselement, which is for transferring the heat generated by the heating element to the fluid with the heating element and the fluid in heat-conducting connection, wherein an inventive Secured device is provided.
  • This is associated with the same advantages as have been explained above in connection with the securing device.
  • a water heater according to the invention with a protruding heating device and with this form-fitting pressure and temperature resistant connected molding to form a fluid space, wherein the molding has at least one inlet opening and at least one outlet opening.
  • a temperature monitoring element is provided, this is preferred if this is arranged on the heat transfer element of the heating device in an area located near the inlet opening in this molded part. This makes it possible in a particularly simple manner, to precisely detect the fluid temperature of the inflowing water heater fluid and quickly detect a drying cycle.
  • FIG. 1 shows a plan view of the outer surface of a heating device according to the invention
  • FIG. 2 shows a section through the heating device from FIG. 1 along the line AA
  • FIG. 3 shows a side view of the heating device according to the invention, this being shown in its later installation position, with the outer surface facing downwards, FIG.
  • FIG. 4 shows a detailed view of the edge of the heating device bordered by a dashed line in FIG. 2,
  • FIG. 5 shows a perspective view of a continuous heater composed of a heating device and a molded part according to the invention
  • Figure 6 is a perspective view of a heater and a lying in the heating circuit of the invention.
  • FIG. 7 shows an enlarged view of the securing device according to the invention from FIG. 6.
  • the heating device 1 shows a heating device 1 in a plan view of its outer surface 14.
  • the heating device 1 has a substantially circular shape.
  • a heat transfer element 3 e.g. made of a stainless steel
  • a heating element 2 is arranged on a central area 4 of a heat transfer element 3, e.g. made of a stainless steel.
  • the heat transfer element is made of a metal, for example a stainless steel, which has a poor thermal conductivity in the lateral direction. Perpendicular thereto, i. in a plane perpendicular to the plane of the drawing, however, the heat transfer element has a good thermal conductivity, so that an effective transfer of the energy generated by the heating element is ensured to the fluid.
  • the heating element 2 consists, for example, of a total of seven circular concentric circular segments, each of which forms a heating section 5.
  • the heating sections 5 are arranged relative to one another in such a way that adjacent ends of the circular segments are electrically connected to one another via a short conductor track 7.
  • the single heating circuit in this case thus extends from one connection end 11 via the outermost concentric ring and each of the further concentric rings to a further connection end 12.
  • the heating element 2 of the present heating device 1 has a single heating circuit. With other wading all heating sections 5 of the heating element 2 are connected in series with each other by corresponding conductor track sections 7. Part of this heating circuit is also a fuse 10, which is part of the safety device according to the invention and which is located substantially in the center of the central region 4, in which the heating segments 5, the lowest radii exhibit.
  • FIGS 2 and 3 show the heating device 1 in its later installation position, e.g. in a Geschip Whymaschine or a washing machine.
  • the installation position is defined such that the outer surface 14 on which the heating element 2, the fuse 10, another and later described temperature monitoring element 8 and the Kunststoffieivoriques 9 are turned down.
  • the inner surface 13, which comes into contact with the fluid, however, is arranged upward.
  • the fuse 10 is intended to prevent damage to the heating element 2 in the event of a dry running of the heater by melting connection ends 26 of the fuse 10 at contact points 28 which are connected to the conductor 7 of the heating circuit via a solder. Due to the small radii of the heating segments, power concentrations are created in this area which promote the triggering of the fuse. Due to its installation position, the separation of the contact points 28 in the case of melting of the solder can be supported by gravity.
  • FIG. 6 shows a perspective view of the heating device 1 and a securing device according to the invention which lies in its heating circuit.
  • FIG. 7 shows an enlarged view of the securing device according to the invention from FIG. 6. It consists of the already mentioned fuse 10 and a heating device 27.
  • the heating device 27 is formed by a heating section 5 of the heating element 2, which is connected via a conductor 29 to a contact point 28 of the fuse 10 is electrically connected.
  • the other contact point 28 of the fuse 10 is electrically connected via a conductor 30 with another heating section 5 of the heating element 2.
  • the solder joints melt at the contact points 28, thereby causing a detachment of the fuse 10 from the heat transfer element.
  • FIGS. 6 and 7 it should be noted that, for better clarity, this does not show the actual installation position.
  • the actual mounting position is shown in the cross-sectional views of Figures 2 and 3.
  • the detachment of the fuse 10 from the heat transfer element 3 is therefore supported by gravity.
  • the thermal heater 27, which is part of the heating element 2, favors the rapid heating of the fuse. Since this consists of a good heat-conducting material, such as a metal, which introduced by the thermal heater 27 spreads Amount of heat along the terminal ends 26 towards the contact points 28 to cause the melting of the solder.
  • the thermal heating device 27 is not a separate component which is subject to a special control, e.g. requires a control signal. Rather, the thermal heater is part of the heating element 2, whereby also in normal operation (i.e., there is no drying cycle), an amount of heat to the fuse 10 is discharged, which is not sufficient, however, to melt the solder at the contact points 28. This is due to the fact that the amount of heat generated by the thermal heater is essentially removed by the fluid flowing around on the inner side 13. However, as soon as this removal comes to a halt, the amount of heat introduced into the fuse is increased, which leads to tripping.
  • the securing device is arranged in the center of the central region 4. Since the heating sections 5 are formed in the form of concentric circle segments, the securing device is arranged in a region in which the heating sections have the smallest radii. At these points, the current concentration is highest, so that the risk of damage to the heater is also greatest in a drying cycle at these locations.
  • the securing device in principle in the center of the heating device.
  • the choice of suitable location depends essentially on the design of the heating element. Due to the above, it is preferable to use the securing device, i. to arrange the fuse and the thermal heater in the area in which the heating sections have the smallest radii.
  • the safety device described is provided in a particularly simple manner independent of the electronic control and in particular one of the additionally provided electronically operating Temperatulüberwachungs worn thermal mechanical locking device.
  • the response time of the security device is less than the time that is necessary to destroy the heater or the heating element.
  • the safety device triggers before an error protection switch triggers in a house.
  • a temperature monitoring element 8 with a negative temperature coefficient is provided in a mounting region 6.
  • the temperature monitoring device 8 the For example, formed as an NTC resistor detected due to the properties of the heat transfer element 3, only the temperature of the inner surface 13 flushing fluid, but not the heat generated by the heating element 2. The temperature monitoring device 8 is thus decoupled from the heating element.
  • the behavior of the heating element can be deduced by detecting and evaluating the fluid temperature flowing around the inside of the heat transfer element.
  • the use of an NTC resistor as a temperature monitoring device has the advantage that the evaluation of the supplied signal is much easier compared to a PTC resistor.
  • a PTC resistor requires high temperature gradients in order to be able to detect a sufficient change in the resistance.
  • the Temperaturüberwachungseiiichtung 8 and the safety device form complementary, but not mutually affecting, monitoring systems.
  • a contacting device 9 is arranged in the mounting region 6, which is recessed by the heating element 2 in the central region 3 of the heat transfer element 3. With the contacting device 9, the terminal ends 11 and 12 of the heating element 2 via respective conductor tracks 24 and 25 are electrically connected.
  • the contacting device 9 has corresponding contact tongues in its interior, via which it can be mechanically and electrically connected to a correspondingly formed plug. Via the contacting device 9, the heating element 9 is supplied with the necessary voltage and the necessary current.
  • the temperature monitoring device is arranged in the immediate vicinity of the contacting device 9 and electrically connected thereto. This can be contacted via the contacting all provided in the heater electrical loads via a single plug contact.
  • the central area 4 is surrounded by a peripheral edge 15.
  • the rim 15 is formed by a wall 17 extending upwardly from the central portion 4 at an angle and a channel wall 18 extending downwardly from the rim 15.
  • the channel wall 18 is part of a channel 16, which further has an outer channel wall 19 and a channel bottom 22.
  • the channel 16, which circumscribes the central area outside the edge 15, serves for Receiving a wall portion of the molded part in order to attach the heater to the molding pressure and temperature stable.
  • the channel wall 19 is formed with a series of tabs 20, which are for receiving latching hooks which are formed in the wall portion of the molded part 50 of a Druchlauferhitzers 100 according to the invention ( Figure 5).
  • the channel walls 18 and 19 are arranged substantially parallel to each other and substantially perpendicular to the plane formed by the central region 4.
  • the channel bottom does not extend below the central region 4.
  • the distance d is therefore 0 in the limiting case or, as shown, greater than 0. This makes it possible in a simple manner, on the outer surface 14 of the central region 4, the heating element 2, in particular the heating sections. 5 to apply in a printing process.
  • the geometry of the metal plate may be formed, for example, by a stamping operation in which the tabs 20 are formed and an embossment.
  • the inner channel wall 18 provides a sealing seat that allows a radial seal between the heater and the molded part. Due to the mounting position of the heater shown in Figures 2 to 4, with the outer surface 14 down, the edge in conjunction with the channel 16 also forms a water barrier, which prevents in the event of leakage of the water heater, the exiting fluid to the heating element can run.
  • the channel bottom 23 thus represents a drip edge, can drain on the exiting fluid before it can reach the serving as a water barrier edge 15.
  • the tabs formed in the outer channel wall 19 each have a recess 21 which extends from the outer channel wall 19 in the direction of the channel bottom 22. This design ensures that a secure locking of the heating device 1 can be done with the molding 50.
  • FIG. 5 shows a perspective view of the instantaneous water heater 100 according to the invention, showing the heating device 1 with a molded part 50 connected thereto.
  • the molded part 50 which consists for example of a plastic, has an inlet opening 51, which is oriented radially. Furthermore, two outlet openings 52 extending axially are seen. Each of the outlet openings 52 can be connected to a separate spraying device of a Geschip Anlagenmaschine. Of course, the arrangement of the inlet opening and the outlet openings can also take place at locations other than those shown in the figure.
  • connection between the heating device 1 and the molded part 50 is further apparent.
  • the connection takes place via the already mentioned tabs 20, engage in the latching hooks 53, and prevent the release of the molded part 50 of the heating device 1 under pressure.
  • a sealing ring is arranged between the molding 50 and the heater 1. More precisely, the sealing ring is arranged between a wall of the molded part extending into the channel 16 and the inner channel wall 18, thereby also under pressure. i.e. under a possible deformation, in particular of the molding, but also the heater, a high density is ensured.
  • the fluid space formed in the interior between the heating device and the molded part does not have any flow resistance, as is the case, for example, with tubular heating elements which lie in the interior of a fluid space. For this reason, in a fiction, contemporary water heater pump performance be reduced, since less flow losses are compensated. With a smaller pump costs can be saved. On the other hand, higher pressures can be achieved while maintaining the previously used pumps, so that the mechanical loading of a wash ware is increased.
  • the water heater has a very small number of parts in total and can be produced in a particularly simple manner.
  • the measures necessary for the production of a secure seal are much less, since only a single sealing ring has to be provided between the heating device and the molded part.
  • To determine a dry running no mechanical acted upon by the fluid switch must be seen more vague. This can be determined solely by the intended Temperatulüberwachungs owned outside the fluid space. If they fail, the safety device ensures reliable separation of the heating circuit.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Electric Stoves And Ranges (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP04819705A 2003-12-04 2004-12-03 Sicherungsvorrichtung für eine heizvorrichtung, heizvorrichtung und durchlauferhitzer Active EP1700514B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04819705T PL1700514T3 (pl) 2003-12-04 2004-12-03 Urządzenie zabezpieczające do urządzenia grzejnego, urządzenie grzejne i grzejnik o przepływie ciągłym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356788A DE10356788A1 (de) 2003-12-04 2003-12-04 Sicherungsvorrichtung für eine Heizvorrichtung, Heizvorrichtung und Durchlauferhitzer
PCT/EP2004/053252 WO2005055659A1 (de) 2003-12-04 2004-12-03 Sicherungsvorrichtung für eine heizvorrichtung, heizvorrichtung und durchlauferhitzer

Publications (2)

Publication Number Publication Date
EP1700514A1 EP1700514A1 (de) 2006-09-13
EP1700514B1 true EP1700514B1 (de) 2007-06-13

Family

ID=34638358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04819705A Active EP1700514B1 (de) 2003-12-04 2004-12-03 Sicherungsvorrichtung für eine heizvorrichtung, heizvorrichtung und durchlauferhitzer

Country Status (6)

Country Link
EP (1) EP1700514B1 (pl)
AT (1) ATE364980T1 (pl)
DE (2) DE10356788A1 (pl)
ES (1) ES2287809T3 (pl)
PL (1) PL1700514T3 (pl)
WO (1) WO2005055659A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109392209A (zh) * 2017-08-11 2019-02-26 苏州乾程自动化科技有限公司 电磁炉线圈自动安装线

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763454A (en) * 1972-02-22 1973-10-02 Tektronix Inc Thermal switch
US4622534A (en) * 1984-02-15 1986-11-11 Bowman Noel T Thermal fuse
DE4011284C2 (de) * 1990-04-06 2003-07-24 Krups Fa Robert Elektrischer Eierkocher
US5652562A (en) * 1996-05-21 1997-07-29 Spectrol Electronics Corporation Thermally fused resistor having a portion of a solder loop thermally connected to an electrically insulated portion of an outer surface of the resistor
GB2332574B (en) * 1997-12-16 2002-06-12 Delphi Automotive Systems Gmbh A fuse arrangement
DE19934319A1 (de) * 1999-07-21 2001-02-08 Bleckmann Gmbh Lamprechtshause Heizvorrichtung mit Laugentemperaturregelung
DE10021512A1 (de) * 2000-05-03 2001-11-08 Ego Elektro Geraetebau Gmbh Elektrische Heizeinheit, insbesondere für flüssige Medien
DE10248066A1 (de) * 2002-10-09 2004-04-22 E.G.O. Elektro-Gerätebau GmbH Sicherungseinrichtung für eine Heizeinrichtung und Heizeinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109392209A (zh) * 2017-08-11 2019-02-26 苏州乾程自动化科技有限公司 电磁炉线圈自动安装线

Also Published As

Publication number Publication date
EP1700514A1 (de) 2006-09-13
ATE364980T1 (de) 2007-07-15
WO2005055659A1 (de) 2005-06-16
DE10356788A1 (de) 2005-07-07
DE502004004113D1 (de) 2007-07-26
PL1700514T3 (pl) 2007-11-30
ES2287809T3 (es) 2007-12-16

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