EP1685580B1 - Verfahren zur herstellung einer bertemperatursicherung und bertemperatursicherung - Google Patents

Verfahren zur herstellung einer bertemperatursicherung und bertemperatursicherung Download PDF

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Publication number
EP1685580B1
EP1685580B1 EP04797766A EP04797766A EP1685580B1 EP 1685580 B1 EP1685580 B1 EP 1685580B1 EP 04797766 A EP04797766 A EP 04797766A EP 04797766 A EP04797766 A EP 04797766A EP 1685580 B1 EP1685580 B1 EP 1685580B1
Authority
EP
European Patent Office
Prior art keywords
fuse element
fuse
heating conductor
excess temperature
heating
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
EP04797766A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1685580A1 (de
Inventor
Michael Tafferner
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
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 EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL04797766T priority Critical patent/PL1685580T3/pl
Publication of EP1685580A1 publication Critical patent/EP1685580A1/de
Application granted granted Critical
Publication of EP1685580B1 publication Critical patent/EP1685580B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit

Definitions

  • the invention relates to a method for producing an overtemperature fuse according to the preamble of claim 1 and a safety device or overtemperature fuse according to the preamble of claim 8.
  • a metal layer is known as a fuse element which is applied to a carrier by, for example, vacuum evaporation or sputtering.
  • the fuse element in the form of the metal layer is here applied directly to the two contacts to be connected.
  • the invention has for its object to provide an aforementioned method and an aforementioned over-temperature protection, with which problems of the prior art can be avoided and in particular an over-temperature protection can be easily and easily made customizable, which can be integrated into small layouts, is reliable and versatile.
  • a heating element or a heater is arranged in the manufacturing process on a support, such as a ceramic support.
  • a heating element or a heater is arranged in the heating or heating range of a heat conductor and in the current path to the power supply of the heating element.
  • an over-temperature protection is provided in the heating or heating range of a heat conductor and in the current path to the power supply of the heating element.
  • a fuse element melting at a certain temperature is mechanically fixed in each case with a region or end at least in the vicinity of the heating conductor in a first step.
  • the mechanical fixation which is electrically insulating, can be advantageously carried out as a prefixing by gluing or with an adhesive.
  • the fuse element can each reach an electrical conductor on both sides of the interruption or at least come close to it.
  • the electrical contacting between the areas or ends of the fuse element on the one hand and on the other hand the heating conductor or its supply line is made.
  • the further manufacture, in particular the electrical contacting can be carried out more easily by prefixing the securing element.
  • the electrical contacting can take place in a continuous process in which further electrical contacts are made. This will be explained in more detail below.
  • the adhesive for mechanical fixing or prefixing should remain stable and stable at the working temperature of the heat conductor or the heater, so that its fixing effect is maintained. It can be self-setting or curable by means of a hardener.
  • the application of an adhesive can be carried out in a manner customary for manufacturing processes, for example in a continuous installation by means of screen printing, dispensers or the like.
  • the adhesive can be applied directly to the carrier. This is advantageously carried out between two open ends of an electrical line or in the current path for supplying the heat conductor or in the course of the heating element itself. This gap may be formed in the manner of a gap. After applying the adhesive, the fuse element can be placed.
  • an electrically conductive and contacting mass is applied to the heating conductor or other conductor forming the current path.
  • Polymer pastes with very highly conductive metals, for example silver, are suitable for this purpose.
  • the drying or curing temperature of such a polymer paste should be below the melting temperature of the fuse element itself. This ensures that the process step with the polymer paste does not give any problems with the mechanical stability of the securing element.
  • the securing element is advantageously elongated, for example as a rod with a flat cross-section.
  • the flat cross-section has the advantage that thereby a heat from the heating on the fuse element can be done very well to improve the rapid response of the fuse.
  • the fuse element can consist of a low-melting alloy on the one hand or on the other hand pure metal.
  • a melting point on the one hand and the melting behavior on the other hand can be influenced to the desired extent.
  • the securing element from a powder which is a polymer paste by means of a mixed and organic carrier.
  • This paste can be applied for example by screen printing or by a dispenser.
  • the properties of the adhesive for prefixing can be set by the polymer paste itself.
  • Such a paste can be hardened after it has been applied.
  • electrical contacting takes place on the conductor or the current path after curing by a separate process in the aforementioned inventive manner.
  • a cover can be applied after the electrical contacting, in particular a layer of covering material. It can also serve as isolation.
  • an elastic, resistant cover material can be taken, in particular silicone.
  • the distance between the heating conductor or conductor of the current path on the one hand and fuse element on the other hand is chosen so large that after the response of the fuse, the galvanic distance is at least 0.8 mm, advantageously 1 mm or more.
  • contact fields can be provided in the region of the conductors or heating conductors, to which contact is mainly made by means of the securing element.
  • silver contacts can be used.
  • Fig. 1 an over-temperature fuse 11 is shown as it can be built integrated into a heater.
  • a support 13 which may be, for example, a thin ceramic plate, a heating element 15 is arranged.
  • the heating conductor 15 may be a thick-film heating, as for example from the DE 10021512 A1 evident.
  • an adhesive 21 is located in the interruption 17 and on the carrier 13, an adhesive 21.
  • an elongated securing element 24 is pressed.
  • the securing element 24 projects beyond the length of the interruption 17 in such a way that it overlaps over the silver contact fields 19.
  • the securing element 24 does not directly contact the silver contact fields 19.
  • a thin layer of adhesive 21 in between is a thin layer of adhesive 21 in between.
  • a silver polymer paste 26 is provided at both ends of the fuse element 24 or in the region of the ends of the heating conductor 15. As can be seen, this overlaps in the manner of a soldering both the ends of the fuse element 24 and a part of the silver contact pads 19 and especially the end portions of the heating conductor 15.
  • a cover 28 be applied from silicone. This covers the entire structure shown, so that only the heating element 15 come out under the cover 28.
  • the illustrated fuse element 24 may for example consist of tin, which has a melting point of 232 ° C. Copper can be alloyed for higher release temperatures or, for example, zinc can be used. As dimensions, for example, 3mm length, 2mm width and 0.1mm height can be taken. Thus, a heater with a rated power of over 2000 watts can be protected against excess temperature.
  • a fuse element 124 is also prefixed by means of an adhesive 121 in the region of an interruption 117 between the ends of the heating element 115.
  • the electrical contacting takes place in that after the prefixing and possibly curing of the adhesive, the left and the right end of the fuse element 124 are welded to the silver Kunststofffeldem 119.
  • the weld 129 may be contact welding.
  • Glue 121 which may be between silver contact pad 119 and fuse element 124, is burned or vaporized by the high temperature of the welding, so that in any case an electrically continuous connection is created.
  • FIG. 3 shows how on the one hand in the overtemperature protection 11 of the adhesive 21 emerges laterally and also between Contact field 19 and fuse element 24 is.
  • the adhesive 121 does not protrude and is also not visible.
  • the carrier 13 with the heating conductors 15 is already present.
  • the silver contact pads 19 can be applied as a coating.
  • the heating conductors 15 can be provided with a good conductive coating, for example of silver.
  • a small amount of adhesive 21 is placed in the break 17. This can be done by different application devices, for example by a spray metering or screen printing.
  • the fuse element 24 is placed such that it rests with its ends in each case if possible on the silver contact pads 19 or heating conductors 15 or at least overlaps. Depending on the adhesive 21, it may have to be hardened or it may harden by itself. If the adhesive 21 is hard, the prefixing of the securing element 24 has taken place.
  • the electrical contact between fuse element 24 and heating element 15 must still be done.
  • either the above-described silver polymer paste 26 can be applied. This can be done, for example, in the same way as before the adhesive 21. After curing of the silver polymer paste 26, the properties or the structure of the fuse element 24 should not adversely affect. If the over-temperature protection is to be provided for high temperatures, it is also possible to work with a silver conductive paste instead of a silver-polymer paste 26.
  • a cover is placed on the securing device 11 or 111, for example in the form of the above-described silicone layer.
  • a cover is also plastic or other coatings possible.
  • this contacting is less sensitive to a temperature increase. This leads to a slower response of the fuse.
  • welded connection makes the contacting relatively susceptible to temperature fluctuations, in particular a temperature increase. If a particularly fast response is desired, then the use of a welded joint is recommended.
  • overtemperature fuses With one of the two overtemperature fuses shown in the figures, it is possible for an integration in the heating element to monitor this heating element and thus the heating cable directly. It is also possible to provide such over-temperature protection in the region of a supply line to a heating conductor, ie only in actually electrical supply lines. Thus, at certain, selectable points the occurrence of excessive temperatures can be safely avoided.
  • a possible application example is a heater for a kettle or a hotplate. If all the water evaporates after cooking, the temperature would exceed a maximum permissible value. Here can then with an inventive Securing device exceeding an adjustable temperature, for example, about 230 ° C, can be prevented.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)
  • Resistance Heating (AREA)
  • Air Bags (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Saccharide Compounds (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Steroid Compounds (AREA)
EP04797766A 2003-11-18 2004-11-10 Verfahren zur herstellung einer bertemperatursicherung und bertemperatursicherung Not-in-force EP1685580B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04797766T PL1685580T3 (pl) 2003-11-18 2004-11-10 Sposób wytwarzania urządzenia zabezpieczającego przed przekroczeniem temperatury i urządzenie zabezpieczające przed przekroczeniem temperatury

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10355282A DE10355282A1 (de) 2003-11-18 2003-11-18 Verfahren zur Herstellung einer Übertemperatursicherung und Übertemperatursicherung
PCT/EP2004/012703 WO2005050689A1 (de) 2003-11-18 2004-11-10 Verfahren zur herstellung einer übertemperatursicherung und übertemperatursicherung

Publications (2)

Publication Number Publication Date
EP1685580A1 EP1685580A1 (de) 2006-08-02
EP1685580B1 true EP1685580B1 (de) 2009-05-20

Family

ID=34585280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797766A Not-in-force EP1685580B1 (de) 2003-11-18 2004-11-10 Verfahren zur herstellung einer bertemperatursicherung und bertemperatursicherung

Country Status (9)

Country Link
US (1) US20060191899A1 (es)
EP (1) EP1685580B1 (es)
JP (1) JP4616271B2 (es)
CN (1) CN100565747C (es)
AT (1) ATE431960T1 (es)
DE (2) DE10355282A1 (es)
ES (1) ES2326891T3 (es)
PL (1) PL1685580T3 (es)
WO (1) WO2005050689A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015217576B4 (de) * 2015-09-15 2017-03-30 Conti Temic Microelectronic Gmbh Mediendichtes Steuergerät für ein Kraftfahrzeug und Verfahren zur Herstellung des Steuergerätes

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895031A (en) * 1958-07-24 1959-07-14 Chase Shawmut Co Fusible protective devices
US3401452A (en) * 1966-04-28 1968-09-17 Electra Midland Corp Method of making a precision electric fuse
JPS5879930U (ja) * 1981-11-25 1983-05-30 日本電気ホームエレクトロニクス株式会社 温度ヒユ−ズ
DE3731969A1 (de) * 1986-10-03 1988-04-14 Wickmann Werke Gmbh Schmelzsicherung fuer die direkte bestueckung von leiterplatten
JPH0814372B2 (ja) * 1989-12-28 1996-02-14 信越ポリマー株式会社 電熱シガーライター
US5097247A (en) * 1991-06-03 1992-03-17 North American Philips Corporation Heat actuated fuse apparatus with solder link
DE4222278C1 (de) * 1992-07-07 1994-03-31 Roederstein Kondensatoren Verfahren zur Herstellung elektrischer Dickschichtsicherungen
US5358798A (en) * 1993-12-06 1994-10-25 Motorola, Inc. Battery assembly having a thermal fuse
AU5914398A (en) * 1997-01-14 1998-08-03 Valentine Magnetics, Inc. Improved thermal cut-off device
JP4396787B2 (ja) * 1998-06-11 2010-01-13 内橋エステック株式会社 薄型温度ヒュ−ズ及び薄型温度ヒュ−ズの製造方法
JP2000100291A (ja) * 1998-09-26 2000-04-07 Uchihashi Estec Co Ltd 温度ヒュ−ズエレメントの取付け構造及び取付け方法
JP3640146B2 (ja) * 1999-03-31 2005-04-20 ソニーケミカル株式会社 保護素子
JP2000285777A (ja) * 1999-03-31 2000-10-13 Nec Kansai Ltd 保護素子
JP2001345035A (ja) * 2000-05-31 2001-12-14 Nec Schott Components Corp 保護素子
US7436284B2 (en) * 2002-01-10 2008-10-14 Cooper Technologies Company Low resistance polymer matrix fuse apparatus and method

Also Published As

Publication number Publication date
DE10355282A1 (de) 2005-06-16
EP1685580A1 (de) 2006-08-02
ES2326891T3 (es) 2009-10-21
US20060191899A1 (en) 2006-08-31
DE502004009510D1 (de) 2009-07-02
JP4616271B2 (ja) 2011-01-19
WO2005050689A1 (de) 2005-06-02
CN100565747C (zh) 2009-12-02
ATE431960T1 (de) 2009-06-15
CN1883024A (zh) 2006-12-20
JP2007511875A (ja) 2007-05-10
PL1685580T3 (pl) 2009-10-30

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