EP1982113A1 - Four de cuisson, notamment four de cuisson destiné à être monté en hauteur et procédé de commande du four de cuisson - Google Patents

Four de cuisson, notamment four de cuisson destiné à être monté en hauteur et procédé de commande du four de cuisson

Info

Publication number
EP1982113A1
EP1982113A1 EP06841595A EP06841595A EP1982113A1 EP 1982113 A1 EP1982113 A1 EP 1982113A1 EP 06841595 A EP06841595 A EP 06841595A EP 06841595 A EP06841595 A EP 06841595A EP 1982113 A1 EP1982113 A1 EP 1982113A1
Authority
EP
European Patent Office
Prior art keywords
door
cooking appliance
speed
parameter
reference parameter
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.)
Withdrawn
Application number
EP06841595A
Other languages
German (de)
English (en)
Inventor
Angelika Namberger
Maximilian Neuhauser
Klemens Roch
Wolfgang Schnell
Günter ZSCHAU
Kerstin Feldmann
Wolfgang Fuchs
Martin Keller
Ingo Bally
Alexander Dinkel
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1982113A1 publication Critical patent/EP1982113A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • 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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/027—Doors specially adapted for stoves or ranges located at bottom side of housing

Definitions

  • Cooking appliance in particular high-installation cooking appliance, and method for controlling a cooking appliance
  • the present invention relates to a cooking appliance, in particular a high-installation cooking appliance, with at least one muffle delimiting a cooking chamber, which has a muffle opening, a door for closing the muffle opening and a controlled by a control device drive means for moving the door.
  • DE 102 88 141 A1 also describes an opto-electronic sensor for detecting a trapping case which switches over the amount of reflected light.
  • the disadvantage is especially that the detection of pinching with a variation of internal parameters of the cooking appliance itself or external influences may not at all or not sure works. For example, a high load on the door can lead to a predetermined travel speed can not be achieved or only delayed. Also, use of the cooking appliance in an area with fluctuating, too high or too low voltage feed can cause short-term deviations occur. Ultimately, aging effects of the drive for the door or guide rails can lead to an originally specified travel speed can not be achieved.
  • a disadvantage is also a control of a closing operation for the door, in which shortly before reaching the closed state of a clamping backup operation in which a switch or a function for detecting a pinching state, is switched to a closing operation for detecting a closing state.
  • the present object is achieved by the cooking appliance having the features of patent claim 1 and a method according to claim 9.
  • a cooking appliance in particular a high-installation cooking appliance, with at least one muffle a cooking chamber having a muffle opening, a door to close the Muffelö réelle and controlled by a control device drive means for moving the door, wherein during a process of the door is determined by the method of the door dependent parameter and wherein the determined parameter is used as a reference parameter for a device function.
  • a control device drive means for moving the door, wherein during a process of the door is determined by the method of the door dependent parameter and wherein the determined parameter is used as a reference parameter for a device function.
  • the reference parameter is preferably always approximated as close as possible to an actual setpoint.
  • it can also be determined as a function of other variable variables, such as a motor current.
  • the reference parameter can subsequently be used as a criterion for the activation of a function during the same movement of the door. This advantageously makes possible a respective adjustment, in particular of the travel speed and, for example, an anti-trap, so that e.g. a different load on the door can be considered individually for the respective travel cycle.
  • the reference parameter can subsequently also be used as a criterion for later traversing movements of the door. This advantageously makes a setting of basic parameters or
  • Basic parameter ranges can be specified when the cooking appliance is first put into operation or at intervals during maintenance activities. In addition to a first-time learning of functions, this also makes it possible to adapt a parameter determined in this way from time to time, so that even creeping changes, eg. B. the lifting speed due to changing friction conditions are considered.
  • a reference speed determined from a travel speed can be defined as the reference parameter.
  • the determination of the reference parameter is preferably carried out after reaching a constant travel speed. This allows a safe determination of the parameter without load-dependent acceleration effects during an initial acceleration phase. However, the determination of the reference parameter can also be carried out after reaching a constant acceleration. This allows a particularly early determination of the parameter so that it can be used particularly advantageously for the instantaneous travel movement.
  • the determination of the reference parameter is alternatively determined over the entire travel path or a part thereof, for. B. first determined and then conveniently readjusted.
  • Such a procedure offers the advantage of being able to determine and take into account, for example, friction effects of lifting rails and the like in a particularly reliable manner.
  • a pinching condition can be determined as a function of the specific reference parameter. This ensures that safety-relevant functions, such as the detection of a pinching condition, also function correctly under varying environmental conditions, for example too high or too low an operating voltage, and therefore varying speeds of travel.
  • the reference parameter it is preferable to hold down a key, in particular two keys to be operated with both-handed operation (eg traversing keys). If the keys are prematurely released, the determination of the reference parameter is preferably aborted. Such an approach is useful because in case of premature termination of the process by releasing the Traversing keys or other keys prevents a reference parameter value from being determined due to a faulty traversing operation.
  • no automatic operation is possible on the basis of the parameter or reference parameter to be determined, eg. B. an automatic positioning operation.
  • the cooking appliance which is in particular a high-installation cooking appliance, but can also be a cooking appliance with a baking carriage, is equipped with a speed measuring device for determining a travel speed of the door.
  • the speed measuring device can detect trapping on the door by monitoring the traversing speed.
  • the traversing motion does not have to be speed-controlled, but can also be regulated, for example, as a function of the load via the motor voltage or the motor current.
  • the traversing movement of the door speed-dependent - so also load independent - controlled or regulated, z. B. via a central control unit.
  • the door, while closing does not unintentionally reverse, but can nevertheless reverse in the event of a probable jamming of an object in the final phase of closing.
  • the case of a non-abrupt premature stopping of the closing movement is an indication of a trapped child's finger, so that the door is opened immediately in such a case, in particular by a sufficient opening for opening out opening.
  • Such a non-abrupt premature stopping of the closing movement can be detected particularly reliably by monitoring a speed difference value.
  • This speed-based anti-jamming device has the advantage that it reacts relatively quickly, can receive accurate input data and can be implemented relatively easily without major design measures.
  • the monitoring of the travel speed can be at a
  • Reduction of the travel speed to be directed which is uncontrolled and therefore not deliberately adjusted. This can be done so that a value measured by the speed measuring device deviates by a fixed or a percentage value from a desired value. If the deviation exceeds or falls below a certain threshold value, a trapping case is assumed. For example, a door can no longer be moved with the set target speed because an object prevents it, then their speed drops accordingly.
  • This evaluation and monitoring can be carried out for example in a central control device, for. B. via suitable microcontroller.
  • a - usually too fast - temporal change of the traversing speed trigger the Einklemmfall, for example, if trapped the door is decelerated faster than intended.
  • the values are chosen so that speed fluctuations caused by the control process for moving the door usually no trapping.
  • the pinching protection methods described in the prior art can be used, such as a motor current measurement.
  • the speed measuring device comprises at least one sensor on a motor shaft of the drive device, in particular of a drive motor, by means of which corresponding sensor signals can be generated upon rotation of the motor shaft.
  • the sensor signals are directly or indirectly a measure of the travel speed of the door.
  • the at least one sensor is a Hall sensor that outputs two sensor signals per revolution of the motor shaft.
  • the Hall sensor system is easy to install, fast and insensitive.
  • two Hall (part) elements are mounted on the motor shaft, so that two signals are output during a revolution of the motor shaft.
  • a speed of the bottom door can be determined, for example via comparison tables or a real-time conversion.
  • the travel speed is detected by a time difference between the sensor signals.
  • an anti-pinch device may be present, which takes over the monitoring of the Einklemmfalls and / or an implementation of the measures to be carried out in Einklemmfalls measures.
  • the anti-trap device may be a separate device or functionally integrated into existing control circuits, e.g. B. in the central control circuit or in a control board or an elevator board.
  • the anti-trap protection or anti-pinch protection device can be activated only when a travel setpoint, in particular a setpoint speed, of the door is reached, which reduces the risk of a false triggering of the anti-pinch protection.
  • a maximum force time curve through the door is advantageously not exceeded.
  • the pinching 'at' the door includes pinching between the door and an outer boundary, z. As the countertop, as well as pinching between the door and muffle frame or housing. For both cases, different force time curves can be provided.
  • At least one limit switch is provided, which is arranged in the area between Muffelo réelle or frame and Tur, wherein an actuation of the at least one limit switch the anti-trap device or the anti-trap deactivated, so exposing protective measures.
  • This limit switch typically switches at an opening dimension of 4 - 9 mm, which is so small that no objects can be clamped.
  • the door does not unintentionally reverse when closing.
  • the speed measuring device can also be used for other purposes, such as setting the traversing speed of the door.
  • This alone is not yet known and not suggested.
  • the invention is particularly suitable for high-installation cooking appliances, in which the muffle opening is a bottom-side muffle opening, and the door is a bottom door, which preferably moves linearly.
  • FIG. 1 shows a perspective view of a wall-mounted high-mounted cooking appliance with lowered bottom door
  • FIG. 2 is a perspective view of the high-installation cooking appliance with closed bottom door.
  • FIG 3 is a perspective view of a housing of the high-installation cooking appliance without the bottom door.
  • FIG. 4 shows a schematic side view in a sectional view along the line I-I from FIG. 1 of the wall mounted high-mounted cooking appliance with lowered bottom door;
  • FIG. 5 shows a front view of another embodiment of a high-installation cooking appliance
  • Fig. 14 is a diagram of a preferred movement in the
  • FIG. 1 shows a high-installation cooking appliance with a housing 1 is shown.
  • the back of the housing 1 is like a
  • a cooking chamber 3 is defined, which has a front side in the housing. 1 introduced viewing window 4 can be controlled.
  • FIG. 4 it can be seen that the cooking space 3 is delimited by a muffle 5, which is provided with a heat-insulating sheath, not shown, and that the muffle 5 has a bottom-side muffle opening 6.
  • the muffle opening 6 is closable with a bottom door 7.
  • the bottom door 7 is shown lowered, being with its underside in contact with a worktop 8 a kitchen device.
  • the bottom door 7 is in the position shown in FIG. 2, the so-called. "Zero position" to adjust.
  • the high-installation cooking appliance has a drive device 9, 10.
  • the drive device 9, 10 has a drive motor 9 shown in dashed lines in FIGS. 1, 2 and 4, which is arranged between the muffle 5 and an outer wall of the housing 1.
  • the drive motor 9 is arranged in the region of the rear side of the housing 1 and is, as shown in FIGS. 1 or 4, in operative connection with a pair of lifting elements 10, which are connected to the bottom door 7. 4, each lifting element 10 is designed as an L-shaped carrier, whose vertical leg extends from the housing-side drive motor 9
  • the drive motor 9 can be actuated by means of a control panel 12 and a control circuit 13, which is arranged according to FIGS. 1 and 2 at the front of the bottom door 7.
  • control circuit 13 is located behind the control panel 12 within the bottom door 7.
  • the control circuit 13, which is composed here of several spatially and functionally separate and communicating via a communication bus circuit boards, is a central control unit for the device operation and controls and / or regulates z.
  • a heating a method of the bottom door 3, a conversion of user input, a lighting, a pinch protection, a clocking of the radiator 16, 17, 18, 22 and much more.
  • FIG. 1 shows that an upper side of the bottom door 7 has a hob 15. Almost the entire surface of the hob 15 is occupied by radiators 16, 17, 18, which are indicated by dash-dotted lines in Fig. 1.
  • the radiator 16, 17 are two spaced apart, different sized cooking hob, while the radiator 18 is provided between the two cooking area heaters 16,17 surface heating element, which almost encloses the cooking area heaters 16, 17.
  • the hotplate heaters 16, 17 define for the user associated cooking zones or hobs; the hotplate heaters 16, 17 together with the surface heating element 18 define a bottom heat zone. The zones may be indicated by a suitable decoration on the surface.
  • the radiators 16, 17, 18 are each controlled via the control circuit 13.
  • the radiators 16, 17, 18 are configured as radiant heaters, which are covered by a glass ceramic plate 19.
  • the glass-ceramic plate 19 has approximately the dimensions of the upper side of the bottom door 7.
  • the glass-ceramic plate 19 is furthermore provided with mounting openings (not shown) through which pedestals for holding support parts 20 for food support 21 protrude, as also shown in FIG.
  • a glass ceramic plate 19 other - preferably quick-responding - covers can be used, for. B. a thin sheet.
  • the high-installation cooking appliance can be switched to a cooking or a bottom heat mode, which will be explained below.
  • the cooking surface heaters 16, 17 can be controlled individually by means of control elements 11, which are provided in the control panel 12, via the control circuit 13, while the surface heating element 18 remains out of operation.
  • the hotplate mode is executable with the bottom door 7 lowered, as shown in FIG. She can, too be operated with closed cooking chamber 3 with raised floor door 7 in an energy saving function.
  • the bottom heat-providing hob 15 has a gleichsummeige over the surface of the hob 15 distribution of Schuetz, although the radiator 16, 17, 18 have different rated power.
  • the radiators 16, 17, 18 are not switched by the control circuit 13 to a continuous operation, but the power supply to the radiators 16, 17, 18 is clocked.
  • the different sized nominal heating powers of the radiator 16, 17, 18 are individually reduced so that the radiator 16, 17, 18 provide a gleichriadige over the surface of the hob 15 distribution of the heat output.
  • Fig. 4 shows schematically the position of a fan 23, z. B. for generating circulating air in a hot air operation or for supplying fresh air.
  • a mounted on an upper side of the muffle 5 Oberhitzeikiper 22 is provided, the single-circuit or Geographic Vietnameseig, z. B. with an inner and an outer circle, can be executed.
  • another radiator such as a RingMapkorper between the rear wall of the housing 1 and the muffle be present.
  • the various operating modes such as, for example, top heat, hot air or Schnellauffilter compassion by an appropriate activation and adjustment of the heating power of the radiator 16, 17, 18, 22, possibly with activation of the fan 23, are set.
  • the adjustment of the heating power can be done by appropriate timing.
  • the hob 15 can also be designed differently, for. B. with or without frying zone, as pure - one or more circular - warming zone without cooktops and so on.
  • the housing 1 has a seal 24 towards the bottom door 7.
  • the control panel 12 is mainly at the front of the
  • Bottom door 7 is arranged.
  • the control elements 11 are not limited in their design and can, for. B. z.
  • As control knob, toggle switch, pushbuttons and membrane keys include the display elements 14 include z. B. LED, LCD and / or touchscreen displays.
  • Fig. 5 is schematically and not to scale a high-mounted cooking appliance shown from the front, in which the bottom door 7 is open on contact with the worktop 8. The closed state is shown in dashed lines.
  • each traversing panel 25 comprises two pushbuttons, namely an upper CLOSE button 25a for a bottom door 7 traveling upwards in the closing direction and a lower OPEN button 25b for one Without automatic operation (see below) moves the bottom door 7 only by continuous simultaneous pressing the CLOSE buttons 25a both traversing panels 25 upwards, if possible; also moves the bottom door 7 only by continuous simultaneous pressing of the UP buttons 25b both traversing panels 25 down, if possible (manual operation). Since in manual operation an increased operator attention of the user is given and also both hands are used here, an anti-trap is then optional.
  • traversing panels 26 are mounted on opposite outer sides of the housing 1 with corresponding ZU buttons 26a and UP buttons 26b, as shown in dotted lines.
  • the control circuit 13 comprises a memory unit 27 for storing at least one destination or travel position PO, PE, P1, P2, PZ of the bottom door 7, preferably with volatile memory modules, eg. B. DRAMs. If a target position PO, Pl, P2, PZ is stored, the bottom door can move independently after pressing one of the keys 25a, 25b and 26a, 26b of the movement panels 25 and 26 in the set direction until the next target position is reached or one of the buttons 25a, 25b or 26a, 26b is pressed again (automatic mode).
  • the lowest target position PZ corresponds to the maximum opening, the (zero) position PO to the closed state, and Pl and P2 are freely adjustable intermediate positions. Is the last
  • the target position for one direction must be continued in manual mode if this is possible (ie the last end positions do not correspond to a maximum open or closed end state). Analog must then, if for one direction no target position is stored - which z. B. for an upward movement in the closed position would be the case if only PZ is stored, but not PO, Pl, P2 - be driven in this direction in manual mode. If no target position is stored, eg. For example, in a new installation or after a power disconnection, no automatic operation is possible. If the bottom door 7 is moved in particular in automatic mode, an anti-pinch protection is preferably activated.
  • Automatic operation and manual operation are not mutually exclusive: by constantly using the travel panels 25, 26, the floor door 7 also travels in the manual mode Operation if a target position could be approached in this direction. It can be z. B. a maximum actuation time of the traversing fields 25 and 26, respectively, the associated keys 25a, 25b and 26a, 26b, are set to activate the automatic mode, z. B. 0.4 seconds.
  • a target position PO, Pl, P2, PZ may be any position of the floor door 7 between and including the zero position PO and the maximum opening position PZ. However, the maximum stored opening position PZ does not have to be the position with abutment on the worktop 8. Storing the target position PO, P1, P2, PZ can be performed with the bottom door 7 at the desired target position PO, P1, P2, PZ, by means of, for example, several seconds (eg two seconds), actuating a confirmation key 28 in the control panel 12 be performed. Existing optical and / or acoustic signal transmitters which output corresponding signals after storing a target position are not shown for the sake of clarity. Approaching the desired target position PO, Pl, P2, PZ to be set takes place, for example, by - in this exemplary embodiment - two-handed operation of the movement panels 25 or 26 and manual method to this position.
  • target positions PO, Pl, P2, PZ can be stored ein arrivedbar.
  • target positions PO, P1, P2, PZ these can be successively started by actuating the corresponding travel keys 25a, 25b or 26a, 26b.
  • the target position (s) are advantageously erasable and / or overridden.
  • only one target position in the opened state can be stored, while the zero position PO is automatically detected and can be automatically approached.
  • the must Zero position PO are stored to be automatically approachable.
  • the or a target position Pl, P2 PZ opens the bottom door 7 at least about 400 mm to about 540 mm (ie P1-P0, P2-P0, PZ-PO> 40cm to 54 cm).
  • the viewing window 4 is mounted approximately at eye level of the user or something below, z. B. by means of a template that indicates the dimensions of Gargerats.
  • the drive motor 9 from FIG. 1 has at least one sensor unit 31, 32 arranged on a motor shaft 30, possibly in front of or behind a transmission, in order to measure a travel path or a position and / or a speed of the bottom door 7.
  • Sensor unit may comprise, for example, one or more induction, Hall, opto, SAW sensors and so on.
  • two Hall (part) elements 31 offset by 180 ° - ie opposite - attached to the motor shaft 30, and a Hallmessaufillon 32 is fixedly mounted at this area of the motor shaft spaced. If a Hall element 31 then passes by the measuring transducer 32 when the motor shaft 30 rotates, a measuring or sensor signal is generated which is, to a good approximation, digital. With (not necessarily) two Hall elements 31, therefore, two signals are output during one revolution of the motor shaft 30. By time evaluation of these signals, z. B.
  • the speed vL of the bottom door 7 can be determined, for example via comparison tables or a conversion in real time in the control circuit 13. By addition or subtraction of the measurement signals, a travel or a position of the bottom door 7 can be determined.
  • a speed control can realize the speed, for example via a PWM-controlled power semiconductor.
  • the distance measurement is automatically re-adjusted by initialization in the zero position PO of the bottom door 7 at each start, so z.
  • the drive motor 9 is operated by actuation of both traversing panels 25 and 26, even when the main switch 29 is turned off.
  • control circuit 13 is flexible and not limited, so it can be several boards, z. B. include a display board, a control board and an elevator board, which are spatially separated.
  • a z. B. 4 mm- O can be detected by limit switch 33, which deactivate an anti-trapping when actuated. It is possible to deactivate the anti-pinch protection but e.g. also by counting pulses of the sensor signals upon reaching a count value which corresponds to a closed amount of e.g. 8.6 mm corresponds. The deactivation of the anti-trap protection is thereby independent of such mechanical limit switches 33.
  • the high-installation cooking appliance can also be designed without a storage unit 27, in which case no automatic operation is possible. This can be for increased operating safety, eg. B. as protection against pinching, be useful.
  • the curve is traversed in the direction of the arrow, ie from right to left.
  • the downward arrows present above the curve indicate actuations of the control panel 12.
  • the traversing movement of the bottom door 7 downward begins with both hands Betatigen the traversing panels 25, 26 and the ON-switch 25b and 26b, as indicated by the upper left vertical arrow.
  • the ramp Rl is linear here.
  • the drive motor 9 is therefore not simply turned on.
  • the movement is thereby load independent, in particular independent of the load of the bottom door 7 or changed Reibverhaltnissen the mechanics.
  • An input for this can be the speed of the drive motor 9, the z. B. can be measured by Hall sensors.
  • the approach to the bottom plate can be detected by limit switch 33 and / or by monitoring the travel.
  • the cooking chamber 3 is not opened, the bottom door 7 so do not proceed from the zero position PO when an opening fuse is active, so if, for example, a certain temperature in
  • the bottom door 7 automatically starts to move to the position Pl. Again, the bottom door 7 is approached gently (right ramp) and automatically braked (left ramp).
  • the slower speed is particularly favorable for older users.
  • Default, z. B. at delivery is the slower speed level. It can also be provided more than two speed levels or target speeds; Also, a free adjustment of the desired speed (s) by the user is conceivable. Conveniently also switchable between at least two speed levels of 50 mm / s and 65 mm / s, z. B. at a device initialization.
  • the traversing movement of the bottom door 7 upward begins with two-handed operation of the to-switch 25a and 26a, as indicated by the upper left vertical arrow.
  • the control circuit 13 detects an approach to the zero position PO and brakes the bottom door 7 in good time before.
  • the speed-dependent control is switched to control with a defined voltage 4 mm before the zero position PO, that is to say the speed-dependent control. H. by supplying the motor 9 with a corresponding voltage.
  • the detection of the 4 mm opening dimension is done via the distance measurement or additionally or alternatively via the limit switch 33. In the range of PO to PO + 4 mm, it is also possible to dispense with an anti-pinch protection.
  • Pl 476 mm in the closed state PO in automatic movement operation.
  • only one of the CLOSE switches 25a, 26a now needs to be actuated for a short time, as indicated by the upper vertical arrow. Then go the bottom door 7 analogous to Fig. 7, only in the other direction.
  • the deceleration ramp for the last 4 mm opening changes from a speed-controlled state into a load- or closing-force-controlled state analogously to the situation from FIG. 8.
  • the monitoring of the lift speed happens here, for example, by evaluating the sensor signals of the motor shaft, wherein z. B. the time between the measurement signals or pulses is evaluated. Only in the second instance is the motor current monitored, which is a rather slower method. In particular, the force that can be generated by the motor 9 for the method is limited in order to avoid accidents due to excessive clamping (see also FIGS. 12 and 13).
  • the deviation from the desired speed is detected by the control circuit 13, z. B. by a speed deviation or a temporal change in speed. Then the bottom door reverses so that the object can be removed; if necessary, a, z. B. acoustic, warning signal issued. The bottom door 7 then moves only when a corresponding actuation of a travel operating field 25, 26 is repeated.
  • the Einklemmfall is not falsely triggered, z. B by a change in payload or a change in the Running characteristics of the mechanics, firstly the anti-trap protection only active switched when the bottom door 7 has reached its target speed (previously a traversing key 25a, 25b, 26a, 26b released, the bottom door 7 stops immediately), and it may be secondly evaluated several sensor signals be, for example, averaged.
  • Fig. 11 shows the Einklemmfall (upper vertical arrow) in the opening process of the bottom door 7 in automatic mode to a target position Pl, in which an object between the bottom of the bottom door 7 and the worktop 8 is clamped.
  • the Einklemmerkennung can be done via two redundant limit switches, which recognize a - especially non-uniform - relief of the bottom door 7, whereupon the drive motor 9 reverses.
  • the maximum permissible force time profile (see FIGS. 12 and 13) is not exceeded.
  • FIG. 12 shows a force F in N which can be applied maximally to the base door 7 in the trapping case during the process in a closing direction (ie, upwards) against the elapsed time t in s as a first force time profile FT1.
  • the possible closing force is limited to 100 N, corresponding to approx. 10 kg, for 5 s.
  • FIG. 13 shows a force F in N which can be applied to the bottom door 7 in the event of trapping in the process in an opening direction (that is, downwards) against the elapsed time t in s as a second force time profile FT2.
  • time intervals and force threshold values of the force time profiles FT1, FT2 can be adapted to the structure and other boundary conditions.
  • Fig. 14 shows an exemplary process flow for learning functions.
  • a parameter vr dependent on the method of the door 7 is determined as a reference parameter.
  • a reference speed vr is particularly preferred.
  • the parameter is determined in particular after the assembly of a cooking appliance during the first start-up, in order to be able to take into account environmental influences at the installation site.
  • a repeated is particularly advantageous
  • Determination of the parameter in order to be able to take into account also with the time changing environmental influences or also internal peculiarities of the cooking appliance.
  • a learning of such a parameter in each method of the door, in particular with each lifting of the door so as to be able to take into account, for example, a constantly varying load.
  • a further function of the cooking appliance can be controlled.
  • a pinching state can be detected if the travel speed before reaching an upper intermediate position pb, from which the door 7 is moved against the muffle 5 at a reducing speed, falls below a nominal travel speed vR.
  • a permissible minimum speed vs is preferably defined as the criterion for outputting a pinching signal or detecting a pinching condition.
  • a state of disturbance can also generally be detected when leaving a speed tolerance range vT, wherein the speed tolerance range vT is likewise preferably specified as a function of the instantaneous operating conditions.
  • the situation of a pinch state is sketched, in which the travel speed vL decreases before reaching the upper intermediate position pb and falls below the permissible nominal or minimum speed vS, as illustrated by the trapped speed profile.
  • the door 7 is preferably accelerated (reversed) in the opposite direction and moved downwards by an opening distance s in order to be able to remove a trapped object, as sketched by means of the exemplary restoring velocity curve v2.
  • the cooking appliance may not even reach a usual permissible minimum speed vS
  • Functions such as the monitoring of a pinching state preferably uses such a learned parameter, such as the reference speed vr as the basis as a reference parameter for a target speed vR to be used.
  • a permissible minimum speed vS and / or a speed tolerance range vT are determined.
  • the determination of the reference parameter, in particular of the setpoint speed v R, is preferably carried out after reaching the lower intermediate position pa, from which the door 7 is moved upwards at a constant speed.
  • the determination of the reference speed vr can preferably be carried out on a first route section as a reference route sr, so that a parameter determined via such a reference route sr can already be used for the further process of the door 7 upwards.
  • a reference distance sr * which is already in the acceleration range of the door 7 between the end position PZ and the lower intermediate position pa.
  • Such a determination can be carried out advantageously in particular if, apart from an initial starting acceleration and a transition phase to the constant speed, there is a constant acceleration phase.
  • the determination of the reference parameter but also over a larger area, possibly even over the entire trajectory is possible.
  • the consideration of the entire trajectory, including or excluding acceleration or deceleration regions can be used in particular to detect malfunctions or changes in the travel conditions (friction, levers, etc.) during normal operation.
  • a service signal can be output, which draws attention to a required lubrication or maintenance of guide rails or a drive module.
  • a procedure is preferred in which an operator must keep a key or preferably two keys 25a, 26a printed during the parameter determination via a certain predetermined, in particular initial, stroke of the door 7 ,
  • a user when starting the door, a user must hold the button (s) for at least 2 seconds, which allows the device to reach the ramp or lower position pa and pass the reference determination section sr.
  • a premature release of the key (s) causes the reference value vr can not be determined correctly, which, for example, leads to the fact that an anti-trap based on the travel speed vL is not activated, so again no automatic traversing operation is allowed.
  • the keys leads to a movement stop and abort of the parameter determination.
  • the determination of a parameter in the case of a disturbance such as, for example, a trapping state, is preferably interrupted so as not to store any parameter determined from an incorrect traversing movement.
  • This readjustment is preferably carried out in the range of a constant setpoint, z. B. in the range of constant travel speed.
  • a parameter can be permanently stored in the cooking appliance in case of initial learning. However, such a parameter is usefully updated from time to time or even at each traversing movement to accommodate changing operating conditions.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Electric Ovens (AREA)

Abstract

L'invention concerne un four de cuisson, notamment un four de cuisson destiné à être monté en hauteur, comportant au moins un moufle (5) renfermant un espace de cuisson (3), ledit moufle présentant une ouverture (6), une porte (7) destinée à fermer l'ouverture (6), et un dispositif d'entraînement (9, 10) commandé par un dispositif de commande (13), destiné à déplacer la porte (7). Lors du déplacement de la porte (7), un paramètre dépendant du déplacement de la porte (7) est déterminé et employé en tant que paramètre de référence (vr) pour une fonction d'appareil. Dans un mode de réalisation préféré, le four de cuisson est commandé de façon correspondante.
EP06841595A 2006-01-31 2006-12-22 Four de cuisson, notamment four de cuisson destiné à être monté en hauteur et procédé de commande du four de cuisson Withdrawn EP1982113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004381A DE102006004381A1 (de) 2006-01-31 2006-01-31 Gargerät, insbesondere Hocheinbau-Gargerät, und Verfahren zum Steuern eines Gargeräts
PCT/EP2006/070167 WO2007087941A1 (fr) 2006-01-31 2006-12-22 Four de cuisson, notamment four de cuisson destiné à être monté en hauteur et procédé de commande du four de cuisson

Publications (1)

Publication Number Publication Date
EP1982113A1 true EP1982113A1 (fr) 2008-10-22

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EP06841595A Withdrawn EP1982113A1 (fr) 2006-01-31 2006-12-22 Four de cuisson, notamment four de cuisson destiné à être monté en hauteur et procédé de commande du four de cuisson

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Country Link
US (1) US20080314374A1 (fr)
EP (1) EP1982113A1 (fr)
DE (1) DE102006004381A1 (fr)
RU (1) RU2008132429A (fr)
WO (1) WO2007087941A1 (fr)

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DE102012215144A1 (de) 2012-08-27 2014-02-27 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugsvorrichtung mit fahrbarer Dunstabzugshaube
ES2713379A1 (es) * 2017-11-20 2019-05-21 Bsh Electrodomesticos Espana Sa Procedimiento para el montaje de un sistema de coccion
ES2976637T3 (es) 2020-04-03 2024-08-06 Electrolux Appliances AB Un medio o módulo sensor para determinar un desplazamiento, en particular un desplazamiento elástico, de un inserto en relación con un panel
CN112555924B (zh) * 2021-01-13 2023-01-03 上海酒店设备股份有限公司 一种自动识别盛具材质的微波炉
US11892525B2 (en) * 2021-10-26 2024-02-06 Littelfuse, Inc. Magnetic sensing system for multiple door appliances
CN114532832B (zh) * 2022-03-04 2025-09-26 添可智能科技有限公司 烹饪设备和加料控制方法

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US2944540A (en) * 1955-12-22 1960-07-12 Jr Charles C Littell Oven
DE4122041C2 (de) * 1991-07-03 1994-03-03 Bosch Siemens Hausgeraete Backofen
DE4339365C1 (de) * 1993-11-18 1995-05-11 Reinshagen Kabelwerk Gmbh Verfahren zur Überwachung von beweglichen Elementen
ES2214518T5 (es) * 1995-10-28 2011-04-13 Elero Gmbh Procedimiento para el accionamiento de marquesinas o similares accionadas con motor eléctrico.
DE10130609A1 (de) * 2001-06-26 2003-01-30 Bsh Bosch Siemens Hausgeraete Haushaltsgerät, insbesondere Backofen
DE10151840A1 (de) * 2001-10-24 2003-05-08 Bosch Gmbh Robert Vorrichtung und Verfahren zum Verstellen eines Teils
DE10164236A1 (de) * 2001-12-27 2003-07-17 Bsh Bosch Siemens Hausgeraete Hocheinbaugargerät
DE10164239A1 (de) * 2001-12-27 2003-07-24 Bsh Bosch Siemens Hausgeraete Hocheinbaugagerät
DE10228141A1 (de) * 2002-06-24 2004-01-22 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE10228140A1 (de) * 2002-06-24 2004-01-15 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE102005038897A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE102005038882A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE102005038883A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Gargerät

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Also Published As

Publication number Publication date
WO2007087941A1 (fr) 2007-08-09
US20080314374A1 (en) 2008-12-25
RU2008132429A (ru) 2010-03-10
DE102006004381A1 (de) 2007-08-02

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