EP2463584B1 - Appareil de cuisson - Google Patents

Appareil de cuisson Download PDF

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Publication number
EP2463584B1
EP2463584B1 EP11191664.9A EP11191664A EP2463584B1 EP 2463584 B1 EP2463584 B1 EP 2463584B1 EP 11191664 A EP11191664 A EP 11191664A EP 2463584 B1 EP2463584 B1 EP 2463584B1
Authority
EP
European Patent Office
Prior art keywords
cooking
door
switch
divider
cooking appliance
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
EP11191664.9A
Other languages
German (de)
English (en)
Other versions
EP2463584A1 (fr
Inventor
Ingo Bally
Günter ZSCHAU
Alexander Dinkel
Wolfgang Fuchs
Claudia Leitmeyr
Angelika Namberger
Michael Reindl
Klemens Roch
Wolfgang Schnell
Matthias Sorg
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL11191664T priority Critical patent/PL2463584T3/pl
Publication of EP2463584A1 publication Critical patent/EP2463584A1/fr
Application granted granted Critical
Publication of EP2463584B1 publication Critical patent/EP2463584B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/162—Co-operating with a door, e.g. operated by the door
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens

Definitions

  • the invention relates to a cooking appliance, in which a cooking space divider can be used.
  • Cooking chamber divider or baking chamber divider are known from the prior art. So shows DE 102 58 727 A1 an oven with a cooking chamber, on whose lateral boundary walls guide means are formed for receiving a cooking chamber divider. At the top of these guide webs electrical contacts are provided, which are contacted with at the bottom of the cooking compartment divider downwardly extending electrical contacts.
  • a cooking appliance in which a cooking space divider can be used.
  • the cooking compartment divider has on its rear side rearwardly extending electrical contacts, which are contacted with electrical contacts of the rear wall of the garraumbegrenzenden muffle.
  • a household appliance device with a household appliance (eg oven), which has a detection unit for detecting a household accessory (eg baking sheet).
  • the detection unit is provided to capture in the household accessories in each case two parameters, namely a parameter on the basic form of the main body of household accessories and a parameter on a material of household accessories. Furthermore, the detection unit is provided to detect positions of household accessories within the cooking chamber.
  • WO 2011/076580 A1 concerns a cooking appliance which at least one arranged in a cooking space busbar for the electrical supply of a in the cooking chamber having operable electrical load, wherein at least one busbar by means of a safety device is switched off stress.
  • the safety device may include a door opening monitoring, in particular a door contact switch.
  • US 3,146,338 discloses an electric oven comprising (a) a charging port for the furnace, (b) a closure member for the charging port, (c) a support member mounted within the furnace for movement in and out of the furnace, (d) an electrical resistance heating element, supported by the support member, (e) electrical connection means disposed within the furnace, (f) the heating element having terminals adapted to releasably engage the connection means when the support member enters the furnace (g) a normally open electrical switching means adapted to be closed by the closure element only when the closure element is moved to the closed position, and immediately after it has completed movement of the closure element to the open position to open after movement of the closure element from the closed position and (h) means for electrically interconnecting the switching means in series with the connection means to control application of electrical energy to the connection means such that the series connection is opened by movement of the closure member from the closed position to prevent movement of the support member out of the closed position Allow interior of the furnace in a position to separate the terminals and the connecting means.
  • the object of the invention is to avoid the above-mentioned disadvantages and in particular to provide a solution which combines a high degree of security with a practical and cost-effective realization.
  • a cooking appliance is specified with a door safety circuit, which is at least partially connected in series with an electrical connection for contacting a cooking chamber divider.
  • the cooking appliance may in particular be an oven, a microwave oven or a steamer. Combinations of the above are possible.
  • the cooking space divider is in particular an electrically operable insert part for the cooking appliance.
  • the cooking compartment divider can be designed with or without thermal insulation.
  • the cooking space divider can be a heatable food support, e.g. a heated baking tray, act.
  • the cooking space divider may have heating elements.
  • the cooking space divider can provide a heater for a top heat and / or a heater for a bottom heat.
  • the cooking compartment divider is contacted via the electrical connection and controlled accordingly via a (stove) control.
  • a (stove) control it is particularly advantageous that the cooking space divider does not require a protective conductor and thus that the electrical connection can be made in a variety of ways (for example in combination with mechanical contact elements).
  • the door safety circuit which is connected in series at least partially with the electrical connection for contacting the cooking compartment divider, it may be a logical AND operation, which is at least partially perceived by a control unit.
  • a first switch of the door security circuit can be physically connected in series with the connections for the cooking space divider and a second switch of the door security circuit can be evaluated by the control unit such that the cooking space divider is only supplied with electrical energy, although this second switch displays in that the door of the cooking appliance is closed; This can be achieved by the control unit does not (or not permanently) controls the cooking space divider, unless the second switch can recognize the closed door.
  • This is a logical AND operation of the first switch and the second switch and correspondingly also a door safety circuit with two switches, which are functionally connected in series with the aforementioned connections for contacting the cooking chamber divider.
  • a development is that a unit for controlling the cooking chamber divider is provided via the electrical connection.
  • This unit may be a heating control or a control unit of the cooking appliance.
  • a heating power of an inserted cooking chamber divider can be adjusted by means of pulse width modulation of such a unit become.
  • the cooking space divider can be controlled separately from heating elements of the cooking chamber.
  • the electrical connection is a two-pole electrical contact.
  • the two-pole electrical contact can be arranged flexibly in the cooking chamber.
  • the cooking space divider due to a symmetry of the cooking space divider, it can be used in different orientations in the cooking space.
  • the electrical connection is designed as at least one plug or at least one socket.
  • each connection is designed as a plug or as a socket.
  • a contact safety of the electrical contacts of the cooking compartment divider can advantageously be achieved thereby.
  • the door safety circuit comprises at least two switches, by means of which it can be determined whether a door of the cooking appliance is closed.
  • the switch may be a microswitch, a pushbutton or an electrical contact, e.g. is closed when the door of the cooking appliance is closed. Accordingly, the switch can be designed so that it is open as soon as the door of the cooking appliance is closed; Thus, the closed switch or contact indicates that the door of the cooking appliance is open. Accordingly, the open or closed state of the switch can be detected and detected by a control unit, e.g. a stove control, to be evaluated.
  • a control unit e.g. a stove control
  • a control unit is provided, by means of which the door safety circuit can be evaluated and by means of which, depending on a state of the door safety circuit, the electrical connections for contacting the cooking compartment divider are supplied with power.
  • one of the switches is connected as a door safety circuit in series with an electrical connection for contacting the cooking chamber divider.
  • the other (redundant) switch is connected directly to the control unit so that the control unit can determine the condition of the door.
  • the control unit can determine the condition of the door.
  • the error state can be displayed by the control unit and the cooking appliance can then be transferred to a safe operating state.
  • the switch connected in series with the connection for contacting the cooking chamber divider is connected to the control unit and thus it can be determined that this switch is not closed.
  • the switch can be designed as a changeover switch which is connected in the open state to the control unit and in the closed state allows a flow of current through the cooking space divider.
  • At least one further switch is provided, by which it can be determined whether the cooking space divider is inserted into the cooking appliance.
  • the (at least one) further switch can be a microswitch, pushbutton or electrical contact, which makes it possible to determine whether the cooking chamber divider has been inserted into the cooking appliance.
  • a spring contact may be provided which closes a circuit with the onset of the cooking chamber divider and thus enables the detection of the cooking space divider in the cooking appliance.
  • the circuit can also be opened as soon as the cooking compartment divider has been inserted into the cooking appliance.
  • the additional switch or an additional redundant further switch can be connected, for example, to a stove control, which evaluates the respective state of the switch and thus can detect whether or not the cooking space divider is inserted into the cooking appliance. By several more switches for detecting the cooking chamber divider, it is possible that faulty switches can be determined.
  • One embodiment is that the further switch is connected in series with the door safety circuit.
  • At least one of the further switches is connected in series with the door safety circuit.
  • the electrical connection for contacting a cooking chamber divider is only supplied with power, although the other switch for detecting the used cooking chamber divider indicates that the cooking space divider is inserted into the cooking appliance.
  • An alternative embodiment is that based on the control unit and the at least one further switch can be determined whether the cooking space divider is inserted into the cooking appliance, only when the cooking space divider inserted, the electrical connections for contacting the cooking space divider are supplied with power.
  • the further switch in the open state of the connected in series with the terminal for contacting the cooking chamber divider further switch is connected to the control unit and thus it can be determined that this further switch is not closed.
  • the further switch can be designed as a changeover switch, which is connected in the open state to the control unit and in the closed state allows a flow of current through the cooking space divider.
  • a door safety circuit is provided which is connected in series with an electrical contact, e.g. for a cooking compartment divider, is connected.
  • the cooking appliance has a door, by means of which a muffle of the cooking appliance can be closed.
  • the electrical contacting may be at least two electrical connections for the cooking chamber divider, e.g. in the form of a plug or a socket, act. About these connections, the cooking compartment divider is supplied with power; a separate protective conductor is not needed for the cooking compartment divider.
  • the door safety circuit may comprise a switch, by means of which the state of the door (open or closed) can be determined.
  • a further switch can be arranged in series with this switch, by means of which also the state of the door (open or closed) can be determined. If one of the switches is defective (for example, permanently closed), the circuit is interrupted by the other switch, thus ensuring that the circuit to the cooking chamber divider is interrupted when the door is opened.
  • switches mentioned here may also be buttons or other contacts (for example relays, microswitches, spring contacts, etc.).
  • the connections of the cooking compartment divider can be de-energized if the cooking space divider is not inserted into the muffle.
  • at least one switch can be provided, which is closed if the cooking space divider into the muffle is used. Only then (and if the door is closed) are the connections of the cooking compartment divider supplied with power.
  • the switch for detecting whether the cooking chamber divider is inserted into the muffle can be designed redundant. Only if both switches indicate that the cooking compartment divider is inserted in the muffle, this is also supplied with power (if the door of the cooking appliance is closed).
  • Fig.1 shows a block diagram for supplying a cooking space divider 101 in a cooking appliance.
  • the cooking space divider 101 can be electrically connected via contacts 102, 103 (eg in the form of a socket or in the form of, for example, side contact plugs or contact sockets) in the cooking appliance.
  • contacts 102, 103 eg in the form of a socket or in the form of, for example, side contact plugs or contact sockets
  • a cooker control 106 (PEC, Protective Electronic Circuit) is provided, for example, with at least one processor, which is controlled by a suitable software that meets certain safety-related requirements.
  • a hardware of the hearth control 106 may be configured redundantly, so that an undesired condition caused by a malfunction can be largely excluded.
  • a door switch 104 and a door switch 105 detect whether the door of the cooking appliance is closed.
  • switches 107 and 108 are provided, which are closed when the cooking space divider 101 is inserted into the cooking appliance.
  • a clock relay 109 is controllable via the hearth control 106 and can be used e.g. also be used for controlling the heating power of the cooking chamber divider 101 (for example by means of pulse width modulation). Furthermore, a main switching relay 110 is provided that can be activated or deactivated by the hearth controller 106.
  • circuit is supplied via terminals 111 and 112 with electrical power (eg via a mains AC voltage).
  • the terminals 111 and 112 are connected to the oven controller 106.
  • a series connection of the clock relay 109, the switch 107, the contact 102, the (possibly used) cooking space divider 101, the contact 103, the door switch 104 and the main switching relay 110 is provided between the terminals 111 and 112. If the clock relay 109, the switch 107, the door switch 104 and the main switching relay 110 are closed, is the inserted cooking chamber divider via the terminals 111 and 112 supplied with electrical power.
  • the main switching relay 110 is open, this switching position can be detected via an input 113 of the hearth control 106. Accordingly, the door switch 104 is connected to an input 114 of the oven controller 106 in the open switching state. The open switching state of the switch 107 is via an input 115 of the oven control 106 and the open switching state of the clock relay 109 is detected via an input 116 of the oven control 106.
  • Both terminals of the switch 108 are connected to the oven controller 106. Also, both terminals of the door switch 105 are connected to the hearth control 106. Thus, the oven controller 106 may determine if the switch 108 is open or closed. Likewise, the oven controller 106 may determine if the door switch 105 is open or closed.
  • the stove controller 106 can output a fault state "door switch defective" and change to a safe operating state.
  • the faulty door switch 104 (permanently closed) can be detected by briefly closing the main switch relay and detecting the state of the door switch 104 at the input 114 as being closed (the state of the main switch 110 does not change the input 114, although the door switch 105 is open). Even then, the stove control 106 can output the error state "door switch is defective" and change to the safe operating state.
  • the switch 108 is defective (i.e., permanently closed), this can be determined via the input 115 of the oven controller 106:
  • the clock relay 109 is momentarily closed, the open state of the switch 107 can be detected.
  • an error state "cooking space divider recognition is defective” is present. Accordingly, this error can be displayed and changed to a safe operating state.
  • the switch 107 is defective (i.e., permanently closed), this can also be determined by momentarily closing the clock relay 109.
  • no signal change is sensed at the input 115 of the oven controller 106, although the switch 108 is (correctly) open.
  • the error state "cooking space divider detection is defective"
  • the stove control 106 can switch to the safe operating state.
  • the hearth control 106 may additionally monitor the states of the clock relay 109 and the main switching relay 110 by means of the inputs 116 and 113 and thus ensure that a triggering of the respective switch actually leads to the intended action or a defect of the clock relay 109 and / or or the main switch relay 110 are detected.
  • Fig.2 shows a schematic block diagram with a heater 201 for a cooking space divider, wherein when inserted cooking chamber divider, a switch 202 is closed. Via terminals 204 and 205, a mains voltage is applied, which feeds from the terminal 204 via a fuse 206 and a node 210, a hearth control 203. The port 205 is also connected to the hearth control 203.
  • the door switch 208 is connected to the open door of the cooking appliance via a resistor 207 to the node 210. If the door switch 208 is closed, it connects the door switch 209 to the heater 201. The door switch 209 is open when the door is open and connects the door switch 208 to the connection 205 when the door is closed.
  • a relay 211 is provided, which can be controlled by the stove control 203.
  • the relay 211, the switch 202, the heater 201, the door switch 208 and the door switch 209 are connected in series with each other.
  • the door switch 209 ensures that the heater 201 is not connected to the mains voltage terminal 205.
  • the door switch 209 when the door switch 209 is in the closed position, when the door is opened, the door switch 208 is connected to the mains voltage terminal 205, thereby connecting to the resistor 207 and the node 210.
  • a current then flows from the terminal 204 of the mains voltage via the fuse 206, and the resistor 207 to the terminal 205 of the mains voltage.
  • the resistor 207 is dimensioned so that the current is sufficient to trigger the fuse 206 if necessary.
  • the hearth control 203 is de-energized and the clock relay 211 switches off. In particular, there are no special safety requirements for the hearth control 203 (i.e., no PEC needs to be provided).
  • the advantage of the solutions presented here is in particular to obtain the greatest possible degree of freedom in the design of the cooking chamber divider and / or the electrical contacts for connecting the cooking chamber divider.
  • a space requirement of the electrical contacts can be minimized because no protective conductor connection must be provided.
  • the switches mentioned here can also be designed as pushbuttons, relays, microswitches or other switchable components or (movable) contacts. Creepage distances of (at least) 4 mm for a basic insulation and of (at least) 3.2 mm for a functional insulation are preferably maintained in accordance with a degree of contamination. An air gap to the protective earth is preferably at least 1.5mm.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Electric Ovens (AREA)
  • Control Of Resistance Heating (AREA)

Claims (8)

  1. Appareil de cuisson avec un circuit de sécurité de porte (104, 105; 208, 209) permettant de constater si une porte de l'appareil de cuisson est fermée et au moins en partie raccordé en série avec un raccordement électrique (102, 103) pour le contact d'un séparateur d'espace de cuisson (101), et avec au moins un interrupteur supplémentaire (107, 108; 202) raccordé en série avec le circuit de sécurité de porte (104, 105; 208, 209) et permettant de constater si le séparateur d'espace de cuisson (101) est utilisé dans l'appareil de cuisson, caractérisé en ce qu'une unité de commande (106 ; 203) est prévue, dans lequel le circuit de sécurité de porte (104, 105; 208, 209) est évalué au moyen de l'unité de commande (106, 203) et les raccordements électriques (102, 103) sont alimentés en électricité pour le contact du séparateur d'espace de cuisson au moyen de l'unité de commande (106, 203) en fonction d'un état du circuit de sécurité de porte (104, 105; 208, 209).
  2. Appareil de cuisson selon la revendication 1, avec une unité (106 ; 101) pour le pilotage du séparateur d'espace de cuisson via le raccordement électrique (102, 103).
  3. Appareil de cuisson selon l'une des revendications précédentes, dans lequel le raccordement électrique (102, 103) est un contact électrique bipolaire.
  4. Appareil de cuisson selon l'une des revendications précédentes, dans lequel le raccordement électrique (102, 103) est exécuté sous la forme d'au moins une prise mâle ou d'au moins une prise femelle.
  5. Appareil de cuisson selon l'une des revendications précédentes, dans lequel le circuit de sécurité de porte (104, 105 ; 208, 209) englobe au moins deux interrupteurs (104, 105; 208, 209) permettant de constater si une porte de l'appareil de cuisson est fermée.
  6. Appareil de cuisson selon la revendication 5, dans lequel les deux interrupteurs (208, 209) du circuit de sécurité de porte sont raccordés en série.
  7. Appareil de cuisson selon la revendication 6, dans lequel l'unité de commande (106 ; 203) et l'au moins un interrupteur supplémentaire (107, 108; 202) permettent de déterminer si le séparateur d'espace de cuisson est utilisé dans l'appareil de cuisson, dans lequel les raccordements électriques sont uniquement alimentés en électricité lorsque pour le contact du séparateur d'espace de cuisson lorsque le séparateur d'espace de cuisson est utilisé.
  8. Appareil de cuisson selon l'une des revendications 6 ou 7, dans lequel l'unité de commande (106; 203) est une commande de cuisinière équipée d'un processeur piloté par un logiciel approprié correspondant à des exigences de sécurité déterminées.
EP11191664.9A 2010-12-07 2011-12-02 Appareil de cuisson Active EP2463584B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11191664T PL2463584T3 (pl) 2010-12-07 2011-12-02 Urządzenie do gotowania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010062502A DE102010062502A1 (de) 2010-12-07 2010-12-07 Gargerät

Publications (2)

Publication Number Publication Date
EP2463584A1 EP2463584A1 (fr) 2012-06-13
EP2463584B1 true EP2463584B1 (fr) 2018-09-05

Family

ID=45063045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11191664.9A Active EP2463584B1 (fr) 2010-12-07 2011-12-02 Appareil de cuisson

Country Status (4)

Country Link
EP (1) EP2463584B1 (fr)
DE (1) DE102010062502A1 (fr)
ES (1) ES2691636T3 (fr)
PL (1) PL2463584T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19828640A1 (de) * 1998-06-26 1999-12-30 Bsh Bosch Siemens Hausgeraete Backofen mit eigenbeheiztem Gargutträger
DE10065215A1 (de) 2000-12-28 2002-07-04 Bsh Bosch Siemens Hausgeraete Gargerät
DE10258727A1 (de) 2002-12-05 2004-06-24 Schott Glas Ofen
DE102009002864A1 (de) * 2009-05-06 2010-11-18 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätevorrichtung
DE102009055142A1 (de) * 2009-12-22 2011-06-30 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Gargerät mit Stromschiene

Also Published As

Publication number Publication date
DE102010062502A1 (de) 2012-06-14
PL2463584T3 (pl) 2019-01-31
ES2691636T3 (es) 2018-11-28
EP2463584A1 (fr) 2012-06-13

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