EP0348716A3 - Thermal switch - Google Patents

Thermal switch Download PDF

Info

Publication number
EP0348716A3
EP0348716A3 EP19890110509 EP89110509A EP0348716A3 EP 0348716 A3 EP0348716 A3 EP 0348716A3 EP 19890110509 EP19890110509 EP 19890110509 EP 89110509 A EP89110509 A EP 89110509A EP 0348716 A3 EP0348716 A3 EP 0348716A3
Authority
EP
European Patent Office
Prior art keywords
thermal switch
consist
tube
serving
bar
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.)
Granted
Application number
EP19890110509
Other languages
German (de)
French (fr)
Other versions
EP0348716B1 (en
EP0348716A2 (en
Inventor
Gerhard Gössler
Eugen Wilde
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 Gerate Blanc und Fischer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25869461&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0348716(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19883821496 external-priority patent/DE3821496A1/en
Priority claimed from DE19883821495 external-priority patent/DE3821495A1/en
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0348716A2 publication Critical patent/EP0348716A2/en
Publication of EP0348716A3 publication Critical patent/EP0348716A3/en
Application granted granted Critical
Publication of EP0348716B1 publication Critical patent/EP0348716B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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
    • H05B1/0216—Switches actuated by the expansion of a solid element, e.g. wire or rod
    • 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/742—Plates having both lamps and resistive heating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
    • H01H37/48—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible rigid rods or tubes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Thermally Actuated Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Switches With Compound Operations (AREA)
  • Electric Stoves And Ranges (AREA)
  • Glass Compositions (AREA)

Abstract

A thermal switch, serving especially as a temperature limiter for a radiant heating body (11) for heating a glass-ceramic plate (12), has radiant heaters (13, 14). Its bar-shaped temperature sensor (20) has an expansion bar (24) which is located in a tube (25) serving as a reference and which can consist of a chromium/iron/aluminium alloy and is heat-treated above 1100 DEG C. The tube (25) can consist of a radiation-absorbing material or is coated with such, for example cordierite, non-transmissive glass ceramic or vitreous silica. Both measures ensure that the thermal switch has an increased switching amplitude and therefore a reduced switching frequency. <IMAGE>
EP89110509A 1988-06-25 1989-06-10 Thermal switch Revoked EP0348716B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3821495 1988-06-25
DE19883821496 DE3821496A1 (en) 1988-06-25 1988-06-25 Temperature switch
DE3821496 1988-06-25
DE19883821495 DE3821495A1 (en) 1988-06-25 1988-06-25 Temperature switch

Publications (3)

Publication Number Publication Date
EP0348716A2 EP0348716A2 (en) 1990-01-03
EP0348716A3 true EP0348716A3 (en) 1991-04-03
EP0348716B1 EP0348716B1 (en) 1995-02-01

Family

ID=25869461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110509A Revoked EP0348716B1 (en) 1988-06-25 1989-06-10 Thermal switch

Country Status (5)

Country Link
US (1) US5055819A (en)
EP (1) EP0348716B1 (en)
AT (1) ATE118144T1 (en)
DE (1) DE58908957D1 (en)
ES (1) ES2066805T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929965A1 (en) * 1989-09-08 1991-03-14 Ego Elektro Blanc & Fischer TEMPERATURE SWITCH
US5256860A (en) * 1993-01-22 1993-10-26 Therm-O-Disc, Incorporated Control for glass cooktops utilizing rod-shaped thermistor
IT240975Y1 (en) * 1996-10-25 2001-04-20 Whirpool Europ S R L TEMPERATURE AND SAFETY CONTROL DEVICE ASSOCIATED WITH A HEATING ELEMENT OF A GLASS-CERAMIC HOB
DE19846513A1 (en) * 1998-10-09 2000-04-13 Ego Elektro Geraetebau Gmbh Switching device for an electrical heating device
DE50112906D1 (en) * 2001-01-10 2007-10-04 Electrovac Temperature
AT409680B (en) * 2001-04-17 2002-10-25 Electrovac Temperature
DE102018213625A1 (en) * 2018-08-13 2020-02-13 Siemens Aktiengesellschaft Switchgear temperature measurement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926648A (en) * 1974-06-07 1975-12-16 Corning Glass Works Sintered cordierite glass-ceramic bodies
DE2839161A1 (en) * 1978-09-08 1980-03-20 Ego Regeltech Temp. limiter for vitreous ceramic cooking utensil - has main power switch and second switch warning against touching heated surface
DE3440156A1 (en) * 1983-11-04 1985-05-15 Electrovac DEVICE FOR CONTROLLING OR LIMITATION OF AT LEAST ONE TEMPERATURE VALUE OR A TEMPERATURE RANGE OF RADIATION OR CONTACT HEATER FROM ELECTRICAL COOKING EQUIPMENT
GB2192279A (en) * 1983-09-10 1988-01-06 Micropore International Ltd Thermal cut-out devices for radiant heaters
DE3817113A1 (en) * 1988-05-19 1989-11-30 Ego Elektro Blanc & Fischer Radiating heater

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8324271D0 (en) * 1983-09-10 1983-10-12 Micropore International Ltd Thermal cut-out device
IE55689B1 (en) * 1983-12-01 1990-12-19 Thorn Emi Patents Ltd Thermal limiter
US4700051A (en) * 1984-09-22 1987-10-13 E.G.O. Elektro-Gerate Blanc U. Fischer Radiant heater for cooking appliances

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926648A (en) * 1974-06-07 1975-12-16 Corning Glass Works Sintered cordierite glass-ceramic bodies
DE2839161A1 (en) * 1978-09-08 1980-03-20 Ego Regeltech Temp. limiter for vitreous ceramic cooking utensil - has main power switch and second switch warning against touching heated surface
GB2192279A (en) * 1983-09-10 1988-01-06 Micropore International Ltd Thermal cut-out devices for radiant heaters
DE3440156A1 (en) * 1983-11-04 1985-05-15 Electrovac DEVICE FOR CONTROLLING OR LIMITATION OF AT LEAST ONE TEMPERATURE VALUE OR A TEMPERATURE RANGE OF RADIATION OR CONTACT HEATER FROM ELECTRICAL COOKING EQUIPMENT
DE3817113A1 (en) * 1988-05-19 1989-11-30 Ego Elektro Blanc & Fischer Radiating heater

Also Published As

Publication number Publication date
EP0348716B1 (en) 1995-02-01
ES2066805T3 (en) 1995-03-16
EP0348716A2 (en) 1990-01-03
ATE118144T1 (en) 1995-02-15
DE58908957D1 (en) 1995-03-16
US5055819A (en) 1991-10-08

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