EP0016329B1 - Circuit pour enclancher de manière graduée le temps de fermeture du circuit de chauffage d'un appareil électrique - Google Patents

Circuit pour enclancher de manière graduée le temps de fermeture du circuit de chauffage d'un appareil électrique Download PDF

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Publication number
EP0016329B1
EP0016329B1 EP19800100602 EP80100602A EP0016329B1 EP 0016329 B1 EP0016329 B1 EP 0016329B1 EP 19800100602 EP19800100602 EP 19800100602 EP 80100602 A EP80100602 A EP 80100602A EP 0016329 B1 EP0016329 B1 EP 0016329B1
Authority
EP
European Patent Office
Prior art keywords
heating
switching
switched
power switches
switching arrangement
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
Application number
EP19800100602
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German (de)
English (en)
Other versions
EP0016329A1 (fr
Inventor
Friedrich Schembera
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH STUTTGART
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0016329A1 publication Critical patent/EP0016329A1/fr
Application granted granted Critical
Publication of EP0016329B1 publication Critical patent/EP0016329B1/fr
Expired legal-status Critical Current

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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
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • H05B1/0266—Cooktops
    • 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 a switching device for the graded on-time of heating an electrical device, in particular an electric hotplate, with a multiple contact switch designed as a 7-stroke switch.
  • an electrical shaft device for switching on different power levels for an electric hotplate which is equipped with at least three heating resistors.
  • the individual power levels are achieved with this electric hotplate via a 7-step switch by series, parallel or individual connection of the heating resistors.
  • the lower power levels are achieved by series connection, while the higher power levels are achieved by connecting the three heating resistors individually or in parallel.
  • a control device for electric hotplates with a single heating resistor is known from DE-B2-2 557 133, which is directly connected to the power supply up to a certain hotplate temperature and which then, when this temperature is reached, by opening a temperature-dependent switch via a power control cycle Heating power is applied.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a switching device for the gradual on-time of heating an electrical device, so that with a multi-contact switch designed as a 7-stroke switch, different powers can be controlled even with a hotplate with a single heating resistor.
  • the advantages achieved by the invention are essentially to be seen in the fact that, based on the multiple-contact switch designed as a 7-stroke switch, the cyclic circuit breaker in a simple manner has different powers with a so-called.
  • Single-circuit heating is made possible by a graduated on-time, so that, apart from the reduction in price compared to the bimetal controller, the 7-stroke switch, which is otherwise only intended for multi-circuit heating, can also be used here. This results in simplified and cost-saving storage for production.
  • connection terminals for a three-phase network are designated 1 to 5.
  • the phases R, S, Tw are connected to the connection terminals 1, 2, 3, and the center conductor MP is connected to the connection terminals 4 and 5.
  • a star-delta connection including a single-phase version, can be carried out in the usual way.
  • a single heating resistor 6 is assigned to each of the four hotplates (not shown), two heating resistors from two hotplates being connected in parallel, and a parallel connection between terminals 1 and 5 and 2 and 5.
  • An oven heater not shown, can be placed on terminals 3 and 4.
  • the heating resistors 6 are connected to the output terminals S6, S8 of multiple contact switches 7 designed as 7-cycle switches.
  • the input terminals S1 to S5 of the multiple contact switch 7 are connected directly to the mains voltage in one circuit via one of the input terminals S4 and are connected in other circuits to the phase conductors R, S and the center conductor MP via cyclic circuit breakers 8.
  • the circuit breakers 8 consist of switching contacts actuating cam disks which are driven by a geared motor M. Instead of the geared motor, an oscillating drive in the form of a bimetal switch or an oscillating armature can also be used.
  • the geared motor M is directly in phase with a display lamp 9 connected in parallel and the multiple contact switch 7 is in contact with the center conductor MP via the output terminals S7 connected in parallel.
  • FIG 2 the closing diagram of the contacts of a multiple contact switch 7 is shown.
  • the contacts are labeled a to f.
  • the contact c is closed in every position and applies voltage to the motor M and the signal lamp 9.
  • contacts b and e are closed, the heating resistor 6 is connected directly to the mains voltage.
  • the contacts are arranged in such a way that a heating output corresponding to an operating time of 8 to 60% is achieved by closing two further contacts to contact c.
  • Figure 3 shows the relative assignment of the switching cams to the extent of the cam switching.
  • the switching cams can be arranged on a common roller or separate disks.
  • the duty cycle of 12% and 8% results from the overlap of the cams for 60%, 40% and 40%, 16%.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Control Of Resistance Heating (AREA)

Claims (5)

1. Dispositif de commutation pour échelonner la durée d'enclenchement du chauffage d'un appareil électrique, notamment d'une plaque chauffante d'une cuisinière électrique au moyen d'un commutateur à contacts multiples (7) réalisé sous forme d'un commutateur à sept cadences de chauffe, caractérisé en ce que l'élément de chauffage est constitué par une seule résistance chauffante (6) qui est reliée aux bornes de sortie (S6, S8) du commutateur à plusieurs contacts (7) et en ce que les bornes d'entrée (S1 à S5) du commutateur à plusieurs contacts (7) sont reliées, dans un circuit de commutation pour la pleine puissance de chauffe, directement à la tension du secteur et qu'elles sont reliées, dans les autres circuits de commutation pour un échelonnement de la durée d'enclenchement et pour des puissances de chauffe différentes, à la tension du secteur par l'intermédiaire de commutateurs de puissance cycliques (8).
2. Dispositif de commutation suivant la revendication 1, caractérisé en ce que les commutateurs de puissance (8) présentent pour la commande des contacts de commutation, des cames qui sont entraînées par un moteur-réducteur (M) ou une . commande par oscillation.
3. Dispositif de commutation suivant l'une des revendications 1 ou 2, caractérisé en ce que les commutateurs de puissance sont constitués par des cames positionnées pour obtenir pour la résistance chauffante (6) des durées d'enclenchement, par exemple de 16%, 40% et 60%.
4. Dispositif de commutation suivant l'une des revendications 1 à 3 et destiné à plusieurs plaques chauffantes d'une cuisinière électrique présentant chacune une seule résistance chauffante (6), caractérisé en ce qu'au moins deux plaques chauffantes peuvent être reliées à la phase par l'intermédiaire des mêmes commutateurs de puissance (8).
5. Dispositif de commutation suivant l'une des revendications 1 à 4, caractérisé en ce qu'au moins deux des commutateurs de puissance (8) comportent des cames qui sont décalées les unes par rapport aux autres et en se chevauchant de façon à obtenir une durée d'enclenchement pour la résistance chauffante (6) proportionnelle à l'importance du chevauchement.
EP19800100602 1979-02-24 1980-02-06 Circuit pour enclancher de manière graduée le temps de fermeture du circuit de chauffage d'un appareil électrique Expired EP0016329B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2907340 1979-02-24
DE19792907340 DE2907340C2 (de) 1979-02-24 1979-02-24 Elektroheizgerät zur stufenweisen Steuerung der Beheizung

Publications (2)

Publication Number Publication Date
EP0016329A1 EP0016329A1 (fr) 1980-10-01
EP0016329B1 true EP0016329B1 (fr) 1982-11-10

Family

ID=6063878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800100602 Expired EP0016329B1 (fr) 1979-02-24 1980-02-06 Circuit pour enclancher de manière graduée le temps de fermeture du circuit de chauffage d'un appareil électrique

Country Status (2)

Country Link
EP (1) EP0016329B1 (fr)
DE (1) DE2907340C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209921A1 (de) * 1982-03-18 1983-10-27 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Einrichtung zur leistungsschaltung bei elektrischen kochplatten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815428A (en) * 1954-11-01 1957-12-03 Gen Motors Corp Domestic appliances
DE1138488B (de) * 1960-12-29 1962-10-25 Ernst Dreefs G M B H Einrichtung fuer elektrische Heizgeraete, insbesondere fuer elektrische Kochgeraete
DE1538338A1 (fr) * 1966-06-02 1970-04-02
DE1565498C3 (de) * 1966-08-03 1974-07-18 Fa. Diehl, 8500 Nuernberg Einrichtung zur Leistungsregelung in Heiz- und Kochgeräten mit mehreren Verbrauchern
DE1615213A1 (de) * 1967-06-21 1971-01-14 Diehl Fa Einrichtung zur Leistungsregelung in Heiz- und Kochgeraeten
DE2105638B2 (de) * 1971-02-06 1973-09-06 EGO Elektro-Gerate Blanc u Fi scher, 7135 Oberderdingen Elektrischer schalter zur stufenweisen steuerung von elektrogeraeten
DE2150703A1 (de) * 1971-10-12 1973-04-19 Bbc Brown Boveri & Cie Intervallsteuereinrichtung zur stufenlosen steuerung mehrerer verbraucher
DE2557133C3 (de) * 1975-12-18 1978-08-24 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Anordnung zur Leistungsregelung elektrischer Kochplatten

Also Published As

Publication number Publication date
EP0016329A1 (fr) 1980-10-01
DE2907340C2 (de) 1984-01-12
DE2907340A1 (de) 1980-09-04

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