EP1982117A1 - Gargerät, insbesondere hocheinbau-gargerät, und verfahren zum steuern eines gargeräts - Google Patents
Gargerät, insbesondere hocheinbau-gargerät, und verfahren zum steuern eines gargerätsInfo
- Publication number
- EP1982117A1 EP1982117A1 EP06841425A EP06841425A EP1982117A1 EP 1982117 A1 EP1982117 A1 EP 1982117A1 EP 06841425 A EP06841425 A EP 06841425A EP 06841425 A EP06841425 A EP 06841425A EP 1982117 A1 EP1982117 A1 EP 1982117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- speed
- monitoring
- gargerat
- 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.)
- Granted
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims description 49
- 238000012544 monitoring process Methods 0.000 claims description 55
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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
- F24C15/02—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 that the Einklemmerkennache described either either relatively sluggish (tensile force sensor) or inaccurate or error-prone (optical sensor) and also require increased installation costs. Above all, it is disadvantageous that the detection of the pinching of a small and elastic object, for example a child's finger, with pinch protection arrangements is not detected or only after damage due to excessive squeezing.
- a further disadvantage is that in the case of a front end of the cooking appliance built-in limit switch or anti-pinch switch at high load on the door whose front edge is lower relative to the rear edge by bending, so that the switches may not work absolutely safe.
- 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 with the features of claim 1 and a method according to claim 27.
- a cooking appliance in particular a high-installation cooking appliance, having at least one muffle defining a cooking space, a door for closing the muffle opening and a drive device controlled by a control device for moving the door, wherein in the event of jamming of an object when moving the door a pinching state is detected, wherein the pinching state is detected by comparing a parameter associated with the movement of movement of the door with a threshold value associated with this parameter and reaching and / or exceeding the threshold value.
- Exceeding here means crossing from below or from above (also called undershooting).
- the comparison between the current value and the threshold value always relates to the current direction of movement of the door, ie, the speed comparison is performed independently of the direction of movement, that is to say, above all, refers to the absolute speed.
- the speed comparison is performed independently of the direction of movement, that is to say, above all, refers to the absolute speed.
- the threshold value preferably corresponds to a permissible minimum speed and / or a differential speed or speed difference per unit time or acceleration. Such a threshold may be considered as an additional or independent criterion.
- the determination of a differential speed can be detected simply by an extending period of a measurement signal of a Hall sensor for monitoring the rotation of a drive shaft. Also usable are other parameters such as a motor current or a load of the floor door.
- the threshold value can be determined as the difference from the setpoint
- threshold speed vS ⁇ target speed vR * x%), so that the trapping case is detected when the current speed vL of the floor door reaches or exceeds the threshold value vS, d. H. falls below, if it moves with only x% of the target speed. This corresponds to the
- the threshold can be used as a difference the threshold differential speed vS determined as the desired differential speed .DELTA.VR * y%, so that the Einklemmfall is detected when the current differential speed .DELTA.VL or acceleration of the bottom door reaches the threshold .DELTA.vS or exceeds from above, ie falls below, if they only still moved y% of the target speed.
- a faster deceleration than intended means that the trapping case at ⁇ vS ⁇ ⁇ vL is triggered for a given period of time.
- a differential speed for monitoring is particularly advantageous with a view to pinching a partially elastic and small object such as a child's finger.
- the door may not abruptly slow down, which would certainly be detectable in a pure speed monitoring.
- monitoring the differential speed may be more sensitive.
- Particularly preferred is a combination of the two methods.
- the monitoring of the threshold-dependent pinching state is preferably within a predetermined distance of movement the door is activated. If this movement distance of the door, in particular within the last movement distance before a zero position corresponding to a closed position of a closed door is located, also an area can be monitored in which, for example, a limit switch has already been activated or other methods for monitoring a clamping state can no longer be used ,
- the monitoring of the pinching state is preferably activated within the last 15 mm, in particular 10 mm, in particular 5 mm movement distance of the door before reaching the zero position. Under the activation of the limit switch is not only to understand the detection of a secure end-closed position but optionally also a first activation even before an end-closed position of the door upon reaching a certain approach distance of the door to the muffle.
- the monitoring of the threshold-dependent pinching state is active, in particular after switching off a first pinching state monitoring method, ie it is still activated or then switched on.
- a first pinching state monitoring method ie it is still activated or then switched on.
- Closed state can be switched. This is ensured by the fact that after switching a continued monitoring is performed alternatively or at least still by monitoring the closing speed.
- the monitoring of the threshold-dependent pinching state takes place correspondingly, in particular after switching off a first type of monitoring for monitoring a pinching condition by means of eg switches just before a final closing movement of the door.
- a pinch-off protection method is provided.
- the monitoring of the threshold value is preferably activated after activation of a limit switch for signaling a last closing range, so that a pinch protection method can be provided even in a narrow distance range in which a child's finger could be clamped.
- the monitoring of the threshold-dependent pinching state during a changeover to a force-controlled closing movement of the door is activated, in particular, when the final closing operation is no longer regulated in terms of speed but controlled by force.
- 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 movement 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 door When the at least one limit switch is actuated, the door is moved to the muffle opening with a defined force and no longer speed-controlled. Nevertheless, it is advantageously ensured that 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 traversing speed may be directed to a reduction of the traversing speed, which is uncontrolled and therefore not deliberately regulated. 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, through 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 with 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 movement Setpoint, in particular a desired speed, the door is reached, which reduces the risk of false Ausschens the anti-trap.
- 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 speed measuring device can also be used for other purposes, such as an adjustment of the travel 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 mounted on a wall 2 in the manner of a hanging cabinet.
- a cooking chamber 3 is defined, which can be controlled via a front side in the housing 1 introduced viewing window 4.
- 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
- 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.
- each lifting element 10 is designed as an L-shaped carrier, whose vertical legs extend from the housing side
- Drive motor 9 extends. To adjust the bottom door 7, 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. As shown in Fig. 4, the control circuit 13 is located behind the control panel 12 within the bottom door 7.
- the control circuit 13, which here consists of several spatially and functionally separated and communicating via a communication bus circuit boards composed, represents 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 in phantom 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 top of the bottom door 7.
- the glass ceramic plate 19 is further equipped with mounting holes (not shown) through the base for holding support members 20 for Garguta 21 protrude, as shown in Fig. 4.
- a glass ceramic plate 19 other - preferably quick-responding - covers can be used, for. B. a thin sheet.
- 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. But it can also be operated with closed cooking chamber 3 with raised floor door 7 in an energy saving function.
- the cooking surface 15 providing the bottom heat has a uniform distribution of the heat output over the surface of the hob 15, although the heating elements 16, 17, 18 have different nominal powers.
- 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 radiators 16, 17, 18 provide a uniform 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 OberhitzeTalkkorper 22 is provided, the single-circuit or Geographic Vietnameseig, z. B. with an inner and an outer circle, can be executed. Also can - not shown here for clarity - another radiator such as a RingAuskorper 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 Schnelletzloom compassion
- the hob 15 can also be designed differently, for. B. with or without frying zone, as a pure - one or Mo Vietnamese - warming zone without cooktops and so on.
- the housing 1 has a seal 24 towards the bottom door 7.
- the control panel 12 is located mainly at the front of the bottom door 7. There are alternatively other arrangements conceivable, for. B. at the front of the housing 1, divided into different subfields and / or partially on side surfaces of Gargerats. Further designs are possible.
- the controls 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 shows diagrammatically and not to scale a high-mounted cooking appliance from the front, in which the floor door 7 is shown open on plant with the worktop 8 is located. 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 after actuation of one of the keys 25a, 25b or 26a, 26b of the traversing panels 25 or 26 as long as automatically proceed in the set direction until the next target position is reached or one of the keys 25a, 25b and 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. If the last target position for one direction has been reached, manual operation must also be continued, if possible
- Automatic operation and manual operation are not mutually exclusive: by permanently activating the travel control panel (s) 25, 26, the floor door 7 also travels in manual mode 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 can be any position of the bottom door 7 between and including the zero position PO and the maximum opening position PZ be. However, the maximum stored opening position PZ need not be the position with contact on the worktop 8. Storing the target position P0, P1, P2, PZ can be performed with the bottom door 7 at the desired target position P0, P1, P2, PZ, by means of, for example, multi-second (eg, two-second), confirming 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.
- a start of the desired target position to be set PO, Pl, P2, PZ is done for example by - in this embodiment - two-handed operation of the traversing panels 25 and 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.
- target positions PO, Pl, P2, PZ let the high-installation Gargerat comfortable to the desired level of operation of multiple users.
- 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 zero position PO must be stored in order to be automatically approachable.
- the bottom door 7 at least about 400 mm to about 540 mm opens (ie Pl-PO, P2-P0, PZ-PO> 40cm to 54 cm).
- Pl-PO, 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 way of the measuring transducer 32 when the motor shaft 30 rotates, a measuring or sensor signal is generated which is, to a good approximation, digital.
- 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.
- limit switch 33 which deactivate a anti-trap protection. It is possible, however, to deactivate the anti-jamming device but also, for example, by counting pulses of the sensor signals when a number value is reached, which corresponds to a closing distance of, for example, 8.6 mm. The deactivation of the anti-trap protection is thereby independent of such mechanical limit switches 33. Alternatively, only anti-jamming measures are disabled that do not work with thresholds, e.g. As mechanical switches, in particular not a movement parameter of the door using anti-pinching mechanisms.
- 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 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 travel movement is load-independent, in particular independent of the load of the floor door 7 or vice versa. changed the friction conditions of the mechanics.
- An input for this can be the speed of the drive motor 9, the z. B. can be measured by Hall sensors.
- Control circuit 13 this approach and brakes the bottom door 7 automatically gently, d. H. with a defined ramp R2, down to PZ. Both ramps R1 and R2 may have other slopes or shapes.
- the approach to the bottom plate can be detected by end 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, if an opening fuse is active, so if, for example, a certain temperature in the oven, z. B. 425 0 C or 600 0 F, is exceeded or a child safety device is activated.
- Fig. 7 shows an analogous to Fig. 6, not to scale
- a free setting of the set speed (s) by the user is also conceivable.
- 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 from. But instead of using the linear ramp to shift directly down to the zero position PO, the speed-dependent control is switched over to control with a defined voltage 4 mm before the zero position PO, ie by supplying the motor 9 with a corresponding voltage. As a result, let a maximum force development when blocking the drive motor 9 set. This voltage differs depending on the history of the process (load, Reibverhaltnisse etc.). The recognition of the 4 mm opening dimension is done via the distance measurement or additionally or alternatively via the limit switches 33
- Range of PO to PO + 4 mm can also be dispensed with an anti-trap.
- 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 anti-trap protection can only be switched active when the bottom door 7 has reached its sole speed (previously a traversing button 25a, 25b, 26a, 26b is released, the bottom door remains 7 immediately stand), and secondly, several sensor signals may be evaluated, 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.
- This is z. B. useful if the motor 9 is up-regulated by the controller 13 to hold the target speed. This ensures in particular that body parts are not injured. If the floor door is tightened for a maximum of 100 N for 5 s, the maximum force that can be applied is reduced further to 25 N, eg. For 5 seconds. In the following, this level of force can be kept or z. B. continue to be lowered to 0 N.
- the maximum force threshold of 100 N can also apply to other traversing situations.
- FIG. 13 shows a force F in N which can be applied maximally to the bottom door 7 in the case of trapping during the process in an opening direction (ie downwards) against the elapsed time t in s as a second one 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 flowchart in which a speed vL with which the door 7 is moved is sketched above a current position P.
- the speeds given in millimeters per second mm / s or in millimeters are to be regarded as purely exemplary.
- the door 7 is accelerated by the drive motor 9 until reaching a lower intermediate position P2 and / or to a target speed vR. From the lower intermediate position P2, the door 7 is moved upward at a constant speed until it reaches a further, upper intermediate position P1. From this upper intermediate position P1, the speed is decelerated until a zero position PO, which corresponds to a closed state, is reached, so that a deceleration-speed course in turn assumes a ramp shape.
- a method for monitoring an entrapment state may be activated, such a method being deactivated according to an exemplary embodiment, in particular in the case of pure speed monitoring when switching over to the deceleration mode, that is to say in particular after reaching the upper intermediate position Pl.
- a monitoring of a pinching condition is only deactivated after reaching an even higher switching position PS or even not at all.
- the switching position PS can be detected for example by reaching a limit switch 33 or detecting a predetermined approximation state of the door 7 to the muffle 5 due to an accumulated number of Hall pulses.
- Closing operation is carried out, for example, the limit switch 33 during the initial startup of the door 7 serve to monitor a pinch protection, while the same limit switch 33 serve during the final approach of the door 7 to the muffle 5 to the closed state monitoring to a safe and firm closing the Tur 7 monitor.
- the switch is expediently carried out a piece before reaching the zero position PO.
- the switching occurs about 4 - 10 mm before reaching the zero position PO.
- an additional or alternative method for monitoring a pinching condition is activated, which, however, may in principle also be activated during the rest of the start-up procedure.
- this method is the Gargerat equipped with a functionality that detects a pinching condition by a dependent of a movement, in particular traversing speed of the door 7 threshold.
- the threshold value used is preferably the dropping below a minimum speed (threshold value) vS and / or increasing a period of measurement signals of a Hall element 31, that is to say a change in a differential speed.
- the monitoring of a motor current or a power drawn by the motor can be used as a threshold value.
- Measuring pulses of the Hall elements 31 are detected, which is predefined for this section.
- the speed of the door 7 is preferably reduced to zero and then briefly increased in the opposite direction.
- the door 7 is preferably again moved away from the muffle 5 by an opening distance s, so that the jammed object can be removed.
- a measuring signal of Hall elements is used, which monitor a rotation of a drive shaft between the drive motor 9 and a lifting element 10 for lifting the door 7.
- other signal pickups can be used which have a current one
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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)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006004390A DE102006004390A1 (de) | 2006-01-31 | 2006-01-31 | Gargerät, insbesondere Hocheinbau-Gargerät, und Verfahren zum Steuern eines Gargeräts |
PCT/EP2006/069832 WO2007087938A1 (de) | 2006-01-31 | 2006-12-18 | Gargerät, insbesondere hocheinbau-gargerät, und verfahren zum steuern eines gargeräts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1982117A1 true EP1982117A1 (de) | 2008-10-22 |
EP1982117B1 EP1982117B1 (de) | 2012-02-15 |
Family
ID=37948242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06841425A Active EP1982117B1 (de) | 2006-01-31 | 2006-12-18 | Gargerät, insbesondere hocheinbau-gargerät, und verfahren zum steuern eines gargeräts |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090001069A1 (de) |
EP (1) | EP1982117B1 (de) |
AT (1) | ATE545829T1 (de) |
DE (1) | DE102006004390A1 (de) |
RU (1) | RU2008132427A (de) |
WO (1) | WO2007087938A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8102799B2 (en) * | 2006-10-16 | 2012-01-24 | Assa Abloy Hospitality, Inc. | Centralized wireless network for multi-room large properties |
US10050948B2 (en) | 2012-07-27 | 2018-08-14 | Assa Abloy Ab | Presence-based credential updating |
WO2014016705A2 (en) | 2012-07-27 | 2014-01-30 | Assa Abloy Ab | Setback controls based on out-of-room presence information |
EP2733449B1 (de) * | 2012-11-16 | 2020-03-11 | Electrolux Home Products Corporation N.V. | Haushaltsgerät mit Umgebungsbedingungserkennungssystem |
US9378630B2 (en) * | 2013-10-08 | 2016-06-28 | Whirlpool Corporation | Method for preventing input on an apparatus having a user interface |
US20160116171A1 (en) * | 2014-10-22 | 2016-04-28 | General Electric Company | Oven airflow control |
CA2915043C (en) | 2014-12-12 | 2017-06-06 | Hestan Commercial Corporation | Kitchen rack |
US10094575B2 (en) * | 2015-01-12 | 2018-10-09 | Hestan Commercial Corporation | Adjustable overhead cooking unit |
KR101710401B1 (ko) * | 2015-03-11 | 2017-02-27 | 엘지전자 주식회사 | 조리기기 및 이의 제어방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2891869B2 (ja) * | 1994-03-31 | 1999-05-17 | 株式会社大井製作所 | 開閉体の駆動制御装置 |
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 |
DE102005038883A1 (de) | 2005-08-17 | 2007-02-22 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
DE102005044692A1 (de) | 2005-09-19 | 2007-03-22 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
-
2006
- 2006-01-31 DE DE102006004390A patent/DE102006004390A1/de not_active Withdrawn
- 2006-12-18 WO PCT/EP2006/069832 patent/WO2007087938A1/de active Application Filing
- 2006-12-18 RU RU2008132427/03A patent/RU2008132427A/ru not_active Application Discontinuation
- 2006-12-18 US US12/087,969 patent/US20090001069A1/en not_active Abandoned
- 2006-12-18 AT AT06841425T patent/ATE545829T1/de active
- 2006-12-18 EP EP06841425A patent/EP1982117B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007087938A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20090001069A1 (en) | 2009-01-01 |
DE102006004390A1 (de) | 2007-08-09 |
EP1982117B1 (de) | 2012-02-15 |
ATE545829T1 (de) | 2012-03-15 |
WO2007087938A1 (de) | 2007-08-09 |
RU2008132427A (ru) | 2010-03-10 |
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