EP0077466A1 - Procédé de rélation de combinaisons d'un dispositif de réglage de puissance et d'une plaque de cuisson - Google Patents

Procédé de rélation de combinaisons d'un dispositif de réglage de puissance et d'une plaque de cuisson Download PDF

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Publication number
EP0077466A1
EP0077466A1 EP82108572A EP82108572A EP0077466A1 EP 0077466 A1 EP0077466 A1 EP 0077466A1 EP 82108572 A EP82108572 A EP 82108572A EP 82108572 A EP82108572 A EP 82108572A EP 0077466 A1 EP0077466 A1 EP 0077466A1
Authority
EP
European Patent Office
Prior art keywords
switch
cooking
heater
hotplate
control
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.)
Ceased
Application number
EP82108572A
Other languages
German (de)
English (en)
Inventor
Karl Fischer
Felix Schreder
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=6143709&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0077466(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0077466A1 publication Critical patent/EP0077466A1/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/106—Tops, e.g. hot plates; Rings electrically heated electric circuits

Definitions

  • the invention relates to an electric cooking appliance, in particular a hotplate or a glass ceramic cooktop, with at least two cooking heaters and a quantizing power control device which has at least one switch which can be actuated by an expansion element which can be heated by a control heater, in order to interrupt the power supply to at least one cooking heater.
  • the invention has for its object to develop an electric cooking device of the type mentioned in such a way that the same expansion element can always be used for different conditions, for example hotplates of different sizes and different overall performance.
  • the characteristic of the power control device should be such that the switching frequency is as low as possible with consistently good control characteristics, so that the switch load and thus the amount of silver required for contact silvering can be kept as low as possible.
  • the invention proposes an electric cooking device in which the control heating is in series with at least one cooking heater.
  • control heating connected to the other side with heating is located on the contact of the switch on the cooking appliance.
  • the power control device has two switches, the series circuit comprising control heating and cooking heating being present at the output of the first switch.
  • the use of two switches makes it possible to see another option for the control of the electric cooking appliance.
  • the second cooking heater is present at the output of the second switch.
  • the two switches preferably open at different temperatures, the second switch preferably opening at a lower temperature than the first switch. This means that below a first temperature of the expansion element, for example, two cooking heaters of the hotplate are operated in parallel while exceeding a first temperature, only a cooking heater is in operation. In general, this second cooking heater is sufficient to maintain the temperature of the hotplate, so that the second switch is no longer operated at all. Of course, this reduces the switching frequency of this switch.
  • the features of the invention can be used particularly advantageously in connection with an automatic hotplate, the automatic hotplate having a hydraulic temperature sensor, the expansion element of which also acts on the switch or both switches.
  • the power delivered by the hydraulic controller to the hotplate is therefore clocked again by the power control device, which can serve to reduce the switching frequency and at the same time to maintain the temperature more precisely.
  • Both switches advantageously have a common input contact. It is particularly favorable if, according to a further feature of the invention, the switch is a double snap switch.
  • the power or the resistance of the cooking heaters can advantageously be chosen such that the same current always flows through the current-carrying control heating.
  • the following table shows examples of a total of six different hot plates with two different sizes, with the current to the right through the control heating of the power control unit being indicated in the column on the right. It can be seen that this current is always 3.95 A.
  • a hotplate 11 is indicated schematically, which has two individually switchable cooking heaters 12 and 13.
  • a hydraulic temperature sensor 14 which is connected to the expansion socket 16 via a line 15 shown in broken lines.
  • a shoulder 17 is arranged, which acts on a bracket 18 of a snap switch 19.
  • a resilient tongue 20 is attached, which carries the movable contact 21 of the switch 19 at its left end.
  • the spring 22 of the tongue 20 is supported with its free end 23 in a notch in the vertically extending leg 24 of the bracket 18.
  • the movable contact 21 of the tongue 20 rests on the fixed contact 25 of the switch.
  • a schematically illustrated stop 26 is arranged above the left end of the tongue 20.
  • a projection 28 of a bimetallic strip 29 acts on the middle part of the tongue 20, which is provided with a bend 27 upwards and is clamped at its right end, not shown in the figure.
  • the control heater 30 is shown above the bimetal strip 29 and is thermally closely coupled to the bimetal strip 29.
  • the bracket 18 is connected to an input terminal 31 via a line, the second input terminal 32 leads directly to the connection 33 of the hotplate 11.
  • the fixed, hotplate-side contact 25 is connected to the second connection 34 of the hotplate 11, the cooking heater 13 being located between the connections 33 and 34.
  • the line 35 from the fixed contact 25 to the connection 34 has a branch 36, which establishes a connection between the contact 25 and the third connection 37 of the hotplate 11 via the control heater 30.
  • the control heater 30 is thus in series with the one cooking heater 12.
  • the temperature sensor 14 causes a temperature-dependent displacement or bending of the bracket 18 so that the actual temperature of the hotplate 11 is transmitted to the radio tion of the switch 19 influences.
  • the measures proposed by the invention would also be sensibly used if such a temperature controller were not available.
  • FIG. 2 A similar arrangement is shown in FIG. 2, in which a control heater 38 also acts on a bimetal strip 29. Again, the bracket 18 is connected to an input terminal 31, this time the tongue 39 having a movable contact 21 at both ends.
  • the double snap switch 41 has two fixed contacts 25 and 40, the contact 40 being connected to the connection 37 of the hotplate 11 shown in FIG. 1 and the contact 25 being connected to the connection 34 of the hotplate 11 in FIG. 1. The first connection 33 of the hotplate 11 is again connected to the terminal 32.
  • the double snap switch 41 now has two springs 22, 42, the spring 42 on the right in FIG. 2 having its free end inserted somewhat higher up in the vertical leg 24 of the bracket 18 than the left spring 22 in the left vertical leg 24 of the Strap 18. This means that the right part of the double snap switch 41 opens when a lower temperature is reached, while the left part of the double snap switch 41 leading to the connection 34 only opens at a second higher temperature.
  • FIG. 3 shows an arrangement similar to FIG. 2.
  • the difference from the embodiment according to FIG. 2 is that the fixed contact 25 of the left half of the snap switch 41 is connected to the control heater 43, the other end of which leads to the connection 37 of the hotplate 11.
  • the right fixed contact 40 of the double snap switch 41 leads directly to the second connection 34 of the hotplate 11, while the first connection 33 of the hotplate 11 is connected to the input terminal 32.
  • the operation of the arrangement according to FIG. 3 is such that when the hotplate is cold, the current leads through the parallel connection of the two cooking heaters 12 and 13 and that after heating the hotplate and / or control heater 43 at a first temperature, the current only flows through the cooking heater 12 flows, after which the left part of the double snap switch 41 opens upon a further increase and thus also interrupts the current flow through the cooking heater 12.
  • the invention makes it possible to use the same bimetal strip 29 in all three cases and the same double snap switch and the same expansion socket 16 in the cases of FIGS. 2 and 3.
  • the same bimetal strip 29 can also be used in the case of an only power-controlled hotplate, i.e. a hotplate without the temperature sensor 14, the line 15 and the expansion socket 16.
  • the tongue 20 and 39, the bracket 18 and the springs 22, 42 consist of metal, so that the current can flow from the input terminal 31 to the contacts 21 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Resistance Heating (AREA)
  • Baking, Grill, Roasting (AREA)
EP82108572A 1981-10-08 1982-09-17 Procédé de rélation de combinaisons d'un dispositif de réglage de puissance et d'une plaque de cuisson Ceased EP0077466A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813140074 DE3140074A1 (de) 1981-10-08 1981-10-08 Elektrokochgeraet
DE3140074 1981-10-08

Publications (1)

Publication Number Publication Date
EP0077466A1 true EP0077466A1 (fr) 1983-04-27

Family

ID=6143709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108572A Ceased EP0077466A1 (fr) 1981-10-08 1982-09-17 Procédé de rélation de combinaisons d'un dispositif de réglage de puissance et d'une plaque de cuisson

Country Status (7)

Country Link
US (1) US4467180A (fr)
EP (1) EP0077466A1 (fr)
CA (1) CA1202058A (fr)
DE (1) DE3140074A1 (fr)
ES (1) ES516301A0 (fr)
GR (1) GR77676B (fr)
YU (1) YU44843B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079483B1 (fr) * 1981-11-10 1986-02-26 E.G.O. Elektro-Geräte Blanc u. Fischer Dispositif de commande pour une plaque de cuisson électrique
DE19724820A1 (de) * 1997-06-12 1998-12-17 Ego Elektro Geraetebau Gmbh Schaltglied für Elektrogeräte, wie Elektrowärmegeräte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424412A (en) * 1942-12-11 1947-07-22 Proctor Electric Co Electrical surface cooking apparatus
DE1188743B (de) * 1961-06-19 1965-03-11 Karl Fischer Elektrische Kochplatte
US3330939A (en) * 1965-09-22 1967-07-11 Gen Motors Corp Electric hot plate
US3612826A (en) * 1970-07-17 1971-10-12 Gen Motors Corp Surface temperature indicator light for ceramic top infrared radiant range
DE2751991A1 (de) * 1977-11-22 1979-05-23 Ego Elektro Blanc & Fischer Kocheinheit mit einer von abgeflachten rohrheizkoerpern gebildeten kochflaeche

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT211443B (de) * 1957-07-16 1960-10-10 Siemens Ag Regeleinrichtung für elektrische Kochplatten
DD78034A (fr) *
US2332911A (en) * 1942-03-18 1943-10-26 Gen Electric Snap action device
FR944304A (fr) * 1944-09-26 1949-04-01 Sun Vic Controls Ltd Perfectionnements aux régulateurs d'appareils chauffants électriques à plusieurs éléments chauffants
GB783261A (en) * 1954-02-25 1957-09-18 Vickers Electrical Co Ltd Improvements in or relating to electrical resistance heating apparatus
US2824941A (en) * 1955-07-18 1958-02-25 Gen Motors Corp Domestic appliance
DE1811479U (de) * 1958-09-04 1960-05-19 Siemens Elektrogeraete Gmbh Einrichtung zur beheizung eines raumes.
GB901733A (en) * 1959-02-16 1962-07-25 Jackson Ind Ltd Improvements relating to electric circuits embodying a heating element
DE1203883B (de) * 1959-09-12 1965-10-28 Telefunken Patent Gleichrichterspeiseschaltung
DE1136432B (de) * 1960-06-08 1962-09-13 Bbc Brown Boveri & Cie Regeleinrichtung fuer elektrische Kochgeraete
GB939001A (en) * 1961-01-03 1963-10-09 Satchwell Controls Ltd Improvements relating to electric supply systems
DE1173197B (de) * 1961-09-13 1964-07-02 Siemens Elektrogeraete Gmbh Einrichtung zur Steuerung des Heizstromkreises elektrischer Kochplatten
GB1005604A (en) * 1961-12-09 1965-09-22 Fischer Karl Apparatus for regulating the current supply to an electric hot plate
DE1238593B (de) * 1964-01-31 1967-04-13 Siemens Elektrogeraete Gmbh Temperaturregeleinrichtung fuer elektrisch beheizte Waermegeraete
DE1615262B2 (de) * 1967-05-10 1977-05-12 Fischer, Karl, 7519 Oberderdingen Regler fuer elektrische heizelemente, insbesondere kochplatten
DE2212157A1 (de) * 1972-03-14 1973-09-20 Ego Elektro Blanc & Fischer Regler fuer elektrokochplatten
DE2343833B2 (de) * 1973-08-30 1977-01-20 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrokochgeraet
US4135081A (en) * 1974-05-10 1979-01-16 Karl Fischer Electric cooking plate with a temperature limiter
DE2459649B2 (de) * 1974-12-17 1979-10-18 Karl 7519 Oberderdingen Fischer Elektrokochplatte mit einer aus drei Heizwiderständen bestehenden Beheizung
DE2731782C2 (de) * 1977-07-14 1983-04-21 E.G.O.- Regeltechnik GmbH, 7519 Oberderdingen Steuergerät für Elektrokochplatten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424412A (en) * 1942-12-11 1947-07-22 Proctor Electric Co Electrical surface cooking apparatus
DE1188743B (de) * 1961-06-19 1965-03-11 Karl Fischer Elektrische Kochplatte
US3330939A (en) * 1965-09-22 1967-07-11 Gen Motors Corp Electric hot plate
US3612826A (en) * 1970-07-17 1971-10-12 Gen Motors Corp Surface temperature indicator light for ceramic top infrared radiant range
DE2751991A1 (de) * 1977-11-22 1979-05-23 Ego Elektro Blanc & Fischer Kocheinheit mit einer von abgeflachten rohrheizkoerpern gebildeten kochflaeche

Also Published As

Publication number Publication date
US4467180A (en) 1984-08-21
YU44843B (en) 1991-04-30
CA1202058A (fr) 1986-03-18
GR77676B (fr) 1984-09-25
ES8307431A1 (es) 1983-06-16
ES516301A0 (es) 1983-06-16
YU224682A (en) 1986-12-31
DE3140074A1 (de) 1983-04-28

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19830915

19U Interruption of proceedings before grant

Effective date: 19850801

19W Proceedings resumed before grant after interruption of proceedings

Effective date: 19870609

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: E.G.O. ELEKTRO-GERAETE BLANC U. FISCHER

17Q First examination report despatched

Effective date: 19870609

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18R Application refused

Effective date: 19910725

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: FISCHER, KARL

Inventor name: SCHREDER, FELIX