WO2020043438A2 - Appareil à micro-ondes ménager - Google Patents

Appareil à micro-ondes ménager Download PDF

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Publication number
WO2020043438A2
WO2020043438A2 PCT/EP2019/071071 EP2019071071W WO2020043438A2 WO 2020043438 A2 WO2020043438 A2 WO 2020043438A2 EP 2019071071 W EP2019071071 W EP 2019071071W WO 2020043438 A2 WO2020043438 A2 WO 2020043438A2
Authority
WO
WIPO (PCT)
Prior art keywords
door
safety switch
household microwave
opening safety
plunger
Prior art date
Application number
PCT/EP2019/071071
Other languages
German (de)
English (en)
Other versions
WO2020043438A3 (fr
Inventor
Markus De Vries
Frederic Dubois
Peter Guggenberger
Markus Kuchler
Jörg ROSENBAUER
Max STIEF
Matthias Vogt
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to GB2103378.2A priority Critical patent/GB2591656B/en
Publication of WO2020043438A2 publication Critical patent/WO2020043438A2/fr
Publication of WO2020043438A3 publication Critical patent/WO2020043438A3/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits

Definitions

  • the invention relates to a household microwave device, comprising a microwave generator for generating microwaves, a treatment room which can be acted upon with the microwaves and a loading opening, a door which can be pivoted via hinges to close the loading opening and at least one door opening safety switch which is open when the door is open interrupts operation of the microwave generator.
  • the invention is particularly advantageously applicable to independent microwave devices and microwave combination devices.
  • US 2014197161 A1 discloses a door switch device for a microwave oven that deactivates the microwave system while no separate "fingers” or pliers are required on the door surface to plunge into a main body of the oven to activate a switch.
  • the switch has several individual switches that are activated by a single switch lever.
  • EP 2 998 496 A1 discloses a hinge comprising a first arm and a second arm which are connected to one another by means of a hinge pin, wherein guide means are provided in order to guide the rotation of the second arm about the axis of the hinge pin. Furthermore, the hinge comprises actuating means which act on the second arm in order to rotate it in the direction of an end position and a support element which is rigidly attached to the second arm and which has its operating part externally on the second arm and parallel to an external side of this arm and spaced apart from this external side, and a damper, which is provided on an external side of the first arm and serves to generate a damping force for the rotational movement of the second arm.
  • the operating part of the support element is connected to the hinge pin in a manner rotatable about the axis of the hinge pin.
  • DE 10 2005 020 744 B3 discloses a method for guiding a cooking process in a cooking chamber of a cooking appliance with an access opening which can be closed by a door or a cover, the degree of opening of the door or the cover, in particular comprising the angle and the duration the opening of the door or lid to Leading the cooking process is recorded; and a cooking device for performing such a method.
  • a household microwave device comprising a microwave generator for generating microwaves, a treatment room to which the microwaves can be applied, with a loading opening, a door which can be pivoted via hinges (“door hinges”) and to close the loading opening and min - at least a door opening safety switch which interrupts operation of the microwave generator when the door is open, the door not having a plunger ("door plunger") which projects permanently from the rear via a rear door plane for actuating the at least one door opening safety switch.
  • the advantage of this household microwave oven is that it reliably detects even small door opening angles of the door without the provision of door tappets that protrude firmly beyond the rear door level, and switches at least one door opening safety switch with high accuracy or sensitivity when the door is closed can. Another advantage is that the door opening safety switches can be better protected against manipulation. The door is also particularly easy to clean, since a user cannot get caught on a plunger or be hindered by a plunger.
  • the household microwave device can be a stand-alone microwave device or a microwave combination device.
  • the microwave combination device can, for example, It can be a microwave device that additionally has at least one electrical resistance heating element, for example to provide a grill function.
  • the microwave combination device can also be an oven or a steam cooker with additional microwave functionality.
  • the treatment room can also be referred to as a cooking room. If the household microwave oven is an oven, the treatment room can also be referred to as an oven room.
  • the microwave generator can comprise a magnetron.
  • the microwave generator can in particular be a microwave generator operated or controlled by an inverter.
  • the microwaves that can be radiated into the treatment room by the microwave generator can be introduced into the treatment room directly or via a microwave guide, in particular via a rotatable antenna.
  • Goods to be treated with microwaves in particular foodstuffs, can be introduced into the treatment room and removed from the treatment room through the loading opening.
  • the door is a microwave-proof door. When the door is closed, it lies in particular on a door flange and forms a microwave trap with it.
  • the door is typically pivotally connected to a housing or body of the microwave device via door hinges. It is a further development that the hinges each have a door sword that is firmly and positively connected to the door in order to hold the door. The pivoting movement of the door is thus transmitted to the pivoting movement of the door sword in particular without play. An entanglement or movement of the door thus corresponds to an entanglement or movement of the door sword with respect to its angular position.
  • the door hinges each have a damping element in order to dampen a movement of the door - in particular shortly before reaching its fully open position and / or its closed position.
  • the damping element can be or have, for example, an elastic spring or a hydraulic damping element.
  • the door opening safety switch is used to operate the microwave oven when the door is open (if the door opening safety switch is not switched by the door). interrupt the generator to prevent microwaves from escaping from the treatment room. If the door opening safety switch is switched, the microwave generator can be operated. In particular, a circuit of the microwave generator can be interrupted by means of the door opening safety switch.
  • the door opening safety switch When the door is closed, the door opening safety switch is switched shortly before the door is in the closed position, in particular when the door is already so close to the flange that even under the door opening angle which is still small, microwaves are no longer or with a only a very low leak rate below the permitted limit values can escape from the treatment room.
  • the door opening angle at which the door opening safety switch switches can also be referred to as the switching angle.
  • the hinges have door swords, which are inserted into the door, and at least one door opening safety switch can be switched by means of the door sword.
  • the door sword thus serves as an actuator for the door opening safety switch.
  • This has the advantage that a circuit of the door opening safety switch can be adjusted particularly precisely to the door opening angle.
  • other components or parts of the door hinge that move when the door is pivoted can also serve as actuators for the door opening safety switch.
  • the door opening safety switch is a microswitch.
  • a microswitch is understood to mean in particular an electrical switch, the contacts of which are less than 3 mm apart from one another in the open state. Due to this small contact distance, the microswitch is particularly suitable for precise switching of the door at the intended switching angle.
  • the household microwave device has a gear mechanism connected to the door sword (or to another part of the door hinge that moves when the door is pivoted), which converts a rotary movement of the door and thus the door sword into a linear movement , wherein the door sword pushes the gear mechanism when closing in the direction of the door opening safety switch.
  • This configuration has the advantage that a mechanically particularly robust and unaffected possibility is opened to precisely lock the door at its desired switching angle switch.
  • the gear mechanism can be hidden (ie, not openly accessible to a user) in the housing and is therefore protected against manipulation.
  • the household microwave device has a resettable plunger between the door sword and the door opening safety switch and the door sword moves the plunger in the direction of the door opening safety switch when the door is closed.
  • This configuration is also mechanically robust and reliable and is better protected against manipulation by a user than an open switch on a flange.
  • the plunger When the door is wide open, the plunger is in a "front" end position in which it does not actuate the door opening safety switch.
  • the door sword contacts the plunger and pushes it in the direction of the door opening safety switch. Only when the door has reached its switch position is the door plunger pressed into the housing to such an extent that it switches the door opening safety switch.
  • the fact that the plunger is a resettable plunger means that the plunger automatically moves back to its front end position when the door is opened.
  • the plunger can be equipped or connected, for example, with a corresponding spring element.
  • the door hinge has a damping element and a connecting element connecting the damping element to the door sword
  • the household microwave device has a resettable plunger and the door sword moves the connecting element in the direction of the plunger when the door is closed, and thus the connecting element moves the plunger into Direction of the door opening safety switch moved.
  • the household microwave device has a cable pull mechanism which converts a rotary movement of the door sword into a linear movement, the door sword moving the cable pull mechanism in the direction of the door opening safety switch when the door is closed. So another one is advantageously Possibility provided to reliably switch the door opening safety switch.
  • the cable pull mechanism can be accommodated practically completely in the housing and thus a particularly high level of manipulation security is achieved.
  • the cable pull mechanism can be arranged in a particularly varied manner and can therefore also be used with small installation spaces and with complex component geometries.
  • the cable pull is a spring-loaded cable pull.
  • the cable can have one or more rollers for cable deflection. Another advantage is that by providing several rollers based on the block and tackle principle, a movement translation can be realized, which further increases the sensitivity of the circuit of the door opening safety switch.
  • the household microwave oven has a e.g. has mechanical, pneumatic or hydraulic stroke translator, which converts a movement of the door hinge, in particular a rotary movement of the door hinge or a movement of another part of the door hinge that is movable when the door is pivoted, into a stroke-translated linear movement, the stroke translator when the Extends the door in the direction of the door opening safety switch.
  • the door sword or the other part of the door hinge that moves when the door is pivoted serves as the actuator of the stroke translator. This also makes it possible to further increase the sensitivity of the circuit of the door opening safety switch.
  • the stroke translator can have a component that is movable similar to the plunger described above, which is pressed into the translator when the door closes and thereby moves, in particular displaces, another component that actuates the door opening safety switch.
  • the household microwave oven has a bistable tilting or snap spring which can be actuated when the door is closed by the door hinge (for example by the door hinge or by another part of the door hinge that is movable when the door is pivoted) and at the door opening safety switch operated.
  • a bistable snap spring is mechanically special robust and reliable. For example, it can be designed similar to a crack frog.
  • bistable snap spring is immersed on one side in a mouth of the door sword.
  • the door opening safety switch has at least one strain gauge, the deformation of which can be measured by means of evaluation electronics, and the at least one strain gauge is arranged on the door sword or on a connecting element of the door hinge between the door sword and a damping spring of the door hinge.
  • the evaluation electronics can activate and deactivate the microwave generator accordingly.
  • a particularly tamper-proof circuit of the door opening safety switch is thereby achieved.
  • the evaluation electronics evaluate a force-time curve of the deformation of the door sword or of the connecting member. This has the advantage that a distinction can be made between a very slow movement of the door (as typically takes place during heating of a cooking appliance) and a jerky movement of the door (as typically occurs when the door is opened manually).
  • the household microwave device has at least one light source (for example having a light-emitting diode or a laser) and at least one light detector (for example having a photodiode), a light beam emitted by the light source in only when the door is closed the light detector falls.
  • the light detector can then serve as the door opening safety switch.
  • this embodiment can also be seen in such a way that the household microwave device has a light barrier with the light detector as a door opening safety switch, which is triggered by the door when the switching angle is reached.
  • the light barrier When the door is open, the light barrier is interrupted, while when the door is closed it provides a light path between the light source and the light detector.
  • the light source and the light detector need not be structurally combined, but can be in different positions.
  • the light source and the light detector are arranged on or in the housing of the microwave device.
  • the light source and the light detector are arranged on or in the door or on a movable part of the door hinge.
  • the light source or the light detector is arranged on or in the housing, while the respective other component (light detector or light source) is arranged on or in the door or on a movable part of the door hinge.
  • the light path or light path is encapsulated. This has the advantage that its contamination or blocking is excluded.
  • a movable hinge part has a particularly reflecting light-reflecting area and the light source and the light detector are arranged such that a light beam emitted by the light source onto the light-reflecting area can only be reflected back into the light detector when the door is closed.
  • an optical aisle system is integrated in the door and the light source and the light detector are arranged such that a light beam emitted by the light source only enters the optical aisle system when the door is closed and can be redirected from the optical aisle system to the light detector .
  • a particularly compact arrangement in particular a light barrier, can be achieved.
  • the door opening security switch is practically manipulated because it is safe for manipulation with the door open, a suitable light-reflecting object would have to be held at the correct angle between the light source and the light detector, which is practically very difficult and requires considerable preparation.
  • the light source and the light detector are arranged in a region of the microwave device which, when the door is closed, lies opposite a side edge of the door. This advantageously enables particularly simple assembly and generally provides sufficient installation space.
  • the optical aisle system can then be accommodated in an edge area of the door that is not thermally stressed.
  • the optical aisle system is arranged in the region of a side edge of the door, which is opposite the door hinges. If, for example, the door is connected to the door hinges at its lower side edge, the optical aisle system is located in the area of an upper side edge of the door.
  • the light detector and the light source can be installed in particular in the area of a switch front, which covers the closed door on the side.
  • the door opening safety switch can be installed in the microwave device with only a small amount of design effort, and in addition the light source and the light detector can be installed in a region of the microwave device which is particularly thermally insignificant. A particularly high level of sensitivity of the light barrier is also achieved in this way, so that the switching angle can be maintained particularly precisely.
  • the optical aisle system effects at least two light deflections, for example for an overall U-shaped light deflection.
  • the security against manipulation is also increased further, since it is practically impossible that a suitable reflecting object is available in normal households that can simulate this deflection of the light beam.
  • a movable diaphragm which covers the light source and the light detector when the door is open and a light path between the door (at least once the switching angle is reached) the light source and the light detector releases.
  • This has the advantage that the light source and the light detector or an associated light exit channel or light entry channel are in front Pollution are protected. This also increases the security against manipulation, since then not only does a suitable light-reflecting object have to be held between the light source and the light detector, but also the diaphragm has to be moved in order to open the light path between the light source and the light detector.
  • Another advantage is that the emission of light from the light source is blocked by the cover when the door is open, so that a user does not perceive a light beam.
  • the microwave device has a plurality of light detectors which can be irradiated at different door opening angles by light emitted by at least one light source. They therefore correspond to different switching angles.
  • This has the advantage that a direction of movement of the door can be determined by evaluating the time sequence of the lighting of the light detectors.
  • the evaluation electronics can activate or deactivate the microwave generator depending on a sequence of irradiation or activation of the photodetectors.
  • the associated at least one light source can irradiate a light-reflecting area on the door or on the door hinge, so that the associated light beam sweeps over the light detectors one after the other as the door is pivoted.
  • the at least one light source can be arranged on the door or on the door hinge.
  • the diaphragm is a resilient diaphragm, for example spring-assisted, which is in a front end position when the door is open, in which it covers the light source and the light detector, and is thus displaced through the door when the door is closed that it releases the beam path between the light source and light detector and, when the door is opened, automatically shifts back to the front setting due to the restoring force exerted on it.
  • the door opening safety switch is a magnetically switchable switch, for example a Hall sensor or a reed relay.
  • This has the advantage that the door opening safety switch can detect the switching angle without contact. This in turn advantageously has the effect that there is no mechanical see wear of the door opening safety switch comes that the door opening safety switch can be arranged hidden and that it is not easy to manipulate manually.
  • the magnetically switchable switch is arranged in the door and a magnet in a region of a door frame opposite the closed door, or vice versa.
  • the door opening safety switch is arranged on an edge of the microwave device, which lies opposite the door hinges, in order to achieve a particularly high sensitivity of the circuit, in particular below a switch front.
  • the “door frame” can in particular include the door flange and an edge of the housing surrounding the closed door on the side.
  • a magnet is arranged in the door and a magnetically switchable magnetic sensor is arranged in an area of a door frame opposite the closed door, which is connected to an evaluation electronics, the evaluation electronics converting signals of the magnetic sensor and a when the magnetic sensor is actuated Actuator with a locking pin, e.g. Anchor bolt, switches, so that the locking bolt is retracted and thereby releases a switch actuator, which can then be moved (e.g. pushed or moved) to a door opening safety switch by means of the door.
  • a locking pin e.g. Anchor bolt
  • the magnetically switchable magnetic sensor is only used for the locking mechanism and therefore does not need to have the accuracy for switching off the door opening safety switch, in particular the microswitch.
  • the door frame may comprise the door flange or another edge opposite the closed door, e.g. an edge of a switch front.
  • the door has a recess on an area opposite a door flange, in which a tappet (“door tappet”) is completely accommodated, at least when the door is open, in the door flange with a switch actuator (for example, a movable pin or bolt) protrudes from the front and when closing the door of the plunger moves the switch actuator, in particular moves it, so that it actuates the door opening safety switch.
  • a switch actuator for example, a movable pin or bolt
  • a cover or a touch guard for the switch actuator is provided on the front of the flange, which laterally surrounds the switch actuator when the door is open. Protection of the switch actuator from contamination and manipulation is thus advantageously provided.
  • the plunger on the door side and / or the touch guard have a lateral or lateral play. This advantageously facilitates the introduction of the door-side tappet into the touch guard.
  • the ram on the door side and the contact protection are laterally fixed.
  • the touch guard can be equipped with a sliding slot that can be moved laterally through the door tappet.
  • the door has a receptacle in an area opposite a door flange, in which a movable tappet (door tappet) is completely accommodated when the door is open, and the door flange has a tappet (actuator tappet) protruding from the front or permanently on an area opposite the door ), the door has a triggering device on an area opposite the actuator tappet, which can be triggered by the actuator tappet when the door is closed, the triggering device is set up to advance the door tappet from the receptacle when it is triggered, and in a door opening safety switch is arranged on the area opposite the door tappet in such a way that when the door closes, the door tappet which is then advanced actuates the door opening safety switch.
  • This has the advantage that an actuation of the door opening safety switch is made possible by a tappet arrangement without the tappet on the door protruding when the door is open and could thus hinder a user.
  • the door tappet can be reset automatically when the door is opened.
  • the door plunger is a linearly movable or longitudinally movable plunger. This enables a particularly simple to implement plunger arrangement. It is an embodiment that the door plunger is a rotatable plunger, ie the door plunger can be moved out of the door by means of a rotary movement. This enables a particularly long extension length of the door tappet. In addition, the advantage is achieved that the door opening safety switch can be positioned in the device in a particularly inaccessible manner (in particular not within a line of sight) and this further increases tamper resistance.
  • FIG. 1 shows a sectional side view of a sketch of a domestic microwave oven according to a first embodiment
  • Household microwave device in the area of a door hinge
  • FIG. 3 shows, as a sectional illustration in side view, a sketch of a section of a household microwave device according to a third exemplary embodiment in the region of a door hinge;
  • FIG. 4 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a fourth exemplary embodiment in the region of a door hinge;
  • 5 shows, as a sectional illustration in side view, a sketch of a detail from a household microwave device according to a fifth exemplary embodiment in the region of a door hinge
  • 6 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a sixth exemplary embodiment in the region of a door hinge when the door is closed;
  • FIG. 7 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to the sixth exemplary embodiment in the region of the door hinge when the door is open;
  • FIG. 8 shows, as a sectional illustration in side view, a sketch of a detail from a domestic microwave oven according to a seventh exemplary embodiment in the region of a door hinge;
  • FIG. 9 shows, as a sectional illustration in side view, a sketch of a detail from a household microwave oven according to an eighth exemplary embodiment in the region of a door hinge;
  • FIG. 10 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a ninth exemplary embodiment in the area of a door hinge;
  • FIG. 1 shows, as a sectional illustration in side view, a sketch of a detail from a household microwave oven according to a tenth exemplary embodiment in the area of a door;
  • FIG. 12 shows a sketch of a household microwave oven according to an eleventh embodiment as a sectional side view
  • FIG. 13 shows, as a sectional illustration in side view, a sketch of a detail from a household microwave oven in accordance with a twelfth exemplary embodiment
  • FIG. 14 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a thirteenth exemplary embodiment
  • FIG. 15 shows, as a sectional illustration in side view, a sketch of a detail from a domestic microwave oven according to a fourteenth exemplary embodiment
  • 16 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a fifteenth exemplary embodiment
  • 17 shows, as a sectional illustration in side view, a sketch of a section of a household microwave oven according to a sixteenth exemplary embodiment
  • FIG. 18 shows, as a sectional illustration in side view, a sketch of a detail from a household microwave oven according to a seventeenth exemplary embodiment
  • FIG. 19 shows a section of a side view, sketchily, of a detail from a conventional household microwave oven, in which at least one plunger on the rear of a door protrudes permanently beyond the back plane of the door.
  • the microwave household appliance 1 shows a sectional side view of a household microwave oven 1 according to a first embodiment.
  • the microwave household appliance 1 has a similar basic structure to the conventional household microwave appliance 201, but in contrast to this does not have any door tappets 213 attached to the door 8 (tappet-free door 8).
  • a gear mechanism 3 is present in a lower region of the door sword 2 of at least one door hinge 10, which controls the rotary movement of the door sword
  • the door opening safety switch 4 is designed here as a microswitch.
  • the door opening safety switch 4 is located outside the treatment room 203 and is connected to the control device 208.
  • a gear ratio can be set by selecting the number and size of the at least one gear wheel 5.
  • the microwave domestic appliance 1 1 has a similar basic structure as the conventional household microwave oven 201, however, in contrast, does not have any plunger 213 which projects permanently over a rear door plane 216.
  • the household microwave device 11 has a resiliently displaceable plunger 13 on the device side, which can be reset by means of a spring element 12, between the door sword 210 and the door opening safety switch 4 designed as a microswitch.
  • the plunger 13 is therefore not part of the door 8 and thus does not protrude from the rear of the door 8 when it is open. Rather, the plunger 13 is housed in the housing 209 and protrudes from the front through a through opening in the door flange 9. When the door 8 is open, the tappet 13 is in a front end position in which it protrudes or protrudes from the flange 9 at the maximum.
  • the door sword 210 comes into contact with the plunger 13 and urges it in the direction of the door opening safety switch 4.
  • the microswitch 4 is switched by the plunger 13 serving as an actuator.
  • the plunger 13 is urged in the direction of its front end position by the spring element 12.
  • FIG 3 shows a sectional side view of a section of a household microwave device 21 in the area of the door sword 210.
  • the microwave household device 21 has a similar structure to the household microwave device 11, but now the plunger 13 is not through the door sword 210, but is actuated by a connecting member 22 of the door hinge 23.
  • the connecting member 22 has a thickening or a projection 24.
  • the plunger 13 and the door opening safety switch 4 are completely accommodated in the housing 209 and are therefore not openly accessible.
  • FIG. 4 shows a sectional side view of a section of a household microwave device 31 in the area of the door sword 32.
  • the microwave household device 31 has a similar basic structure to the conventional household microwave device 201, but in contrast does not have one rear door plane 216 permanently protrudes plunger 213.
  • the household microwave device 31 has a cable pull mechanism 33, which converts a rotary movement of the door 8 and thus the door sword 32 into a linear movement, the door 8 moving the cable pull mechanism 33 in the direction of the door 8 of the door opening safety switch 4 moves.
  • the cable pull mechanism 33 has a cable pull 35 which is spring-biased by means of a spring 34.
  • the door sword 32 and a housing 36 of the door hinge 37 each have a roller. While only a single rope deflection around a reel is shown, a corresponding translation can be realized by multiple deflections over several reels (cylinder pull principle). The sensitivity of the arrangement then increases.
  • FIG. 5 shows a sectional side view of a section of a household microwave device 41 in the area of the door saber 210.
  • the microwave household device 41 has a similar basic structure to the conventional household microwave device 201, but in contrast does not have one rear door plane 216 permanently protrudes plunger 213.
  • Household microwave oven 41 has e.g. hydraulic stroke translator 42, which converts a rotary movement of the door 8 and thus the door sword 210 into a stroke-translated linear movement, the door sword 210 extending the stroke translator 42 when the door 8 is being closed in the direction of the door opening safety switch 4 for its actuation.
  • a small movement of the door sword 210 on the left hydraulic side of the stroke translator 42 has a large movement, e.g. Ram movement, on the right hydraulic side of the stroke translator 42 result.
  • the stroke translator 42 can also be operated by other moving parts of the door hinge, e.g. by a projection 24 of a connecting link 22.
  • FIG. 6 shows a sectional side view of a section of a domestic microwave device 51 in the area of the door hinge 54 when the door 8 is closed.
  • the domestic microwave device 51 has a bistable snap spring 52, which is closed by the intermediate member 53 when the door 8 is closed of the door hinge 54 can be actuated, reaches its switching point, which corresponds to the switching angle, snaps and actuates the door opening safety switch 4 by snapping. In particular, there can be a translation effect of the movement, which actuates the door opening safety switch 4 safely.
  • the bistable snap spring 52 is fastened to a suspension 55 in such a way that a first section or arm engages in a mouth 56 inserted in the intermediate member 53.
  • a second section or arm protrudes into the area of the door opening safety switch 4. If the door 8 is closed, the intermediate member 53 has moved the first arm in its mouth 56 in such a way that the bistable snap spring 52 is in its first end position and thereby the presses the second arm on the door opening safety switch 4 and thereby actuates it.
  • the bistable spring 52 can be adjusted at the switching point in such a way that the switching point is very close below when the door is closed and the spring switches immediately with only a slight actuation (for example, similar to a pre-tensioned disc spring that is just about to switch and tilts when there is little door movement). .
  • FIG. 7 shows a sectional side view of a section of the household microwave device 51 in the area of the door hinge 54 with the door 8 open.
  • the suitable movement of the first arm for the transition between the two end positions is primarily determined by the movement of the intermediate member 53 and the shape of the jaw 56.
  • the door hinge 62 differs from the door hinge 205 in that a strain gauge 63 is attached to the door sword 64 whose deformation, in particular elongation, can be measured by means of evaluation electronics (not shown) of the household microwave device 61.
  • the knowledge is exploited that the hinge sword 210 is mechanically loaded when the door 8 is opened and closed. The resulting weak deflection of the hinge sword 210 can be detected via the strain gauge 63. In particular, it can be evaluated whether the door 8 is opened or closed.
  • the evaluation electronics can be dependent on If a threshold value is exceeded, trigger a switching action, for example activating or deactivating the microwave generator 202. It is also possible for a delta comparison to be carried out between a rest force in the closed door position and a deflection force in the switch-off area of the door deflection, ie on the switching angle. Furthermore, an evaluation of the force-time curve is possible, for example, between an extremely slow movement of the door (as typically takes place during the heating of the treatment room 203) and a jerky movement of the door 8 (as typically occurs occurs when the door 8 is opened manually).
  • a particularly advantageous position for attaching the strain gauge 63 is on a narrow side of the door sword 210, as shown on the left side, since there the strains are particularly pronounced, in particular on a rear or device-side narrow side of the door sword 210, especially in the Close to its axis of rotation, especially where the door sword 210 has a shallow depth.
  • FIG. 9 shows a sectional side view of a section of a household microwave oven 71 in the area of a door hinge 72.
  • the door hinge 72 differs from the door hinge 205 in that the strain gauge 63 is now attached to the connecting member 73, the deformation thereof, in particular elongation, can be measured by means of evaluation electronics (not shown) of the household microwave device 71.
  • evaluation electronics not shown
  • the household microwave device 81 has a light source 83 (for example an LED or a laser) and a light detector 84 (for example a photodiode) as a door opening safety switch.
  • the door sword 86 has a specularly reflecting area (mirror) 87.
  • the light source 83 and possibly the light-reflecting area 87 can also be understood as an actuator for the light detector.
  • the light source 83 and the light detector 84 are arranged such that when the door 8 is closed, one emitted by the light source 83 onto the light-reflecting region 87 Light beam L is reflected back into the light detector 84. However, if the door 8 is opened beyond its switching angle, the light beam L is no longer reflected back into the light detector 84. The rotational movement of the hinge sword 86 can thus be measured via the deflection of the light beam L, since the rotational movement of the hinge sword 86 is converted into a deflection of the reflected light beam L.
  • the light source 83, the light detector 84 and the light reflecting region 87 form a kind of light barrier.
  • the microwave generator 202 can only be activated when the light beam L is detected in the light detector 84, otherwise the microwave generator 202 is deactivated.
  • the light source 83 and the light detector 84 are housed within the housing 209.
  • the light path is advantageously encapsulated, so that contamination or blocking of the light path is excluded.
  • This can e.g. be implemented in that the light source 83 and the light detector 84 are accommodated in a protective housing which has a window for light exit to the specularly light-reflecting region 87, through which the reflected light beam L can also fall back into the light detector 84.
  • the light source 83 and the light detector 84 can be structurally combined (e.g. in a module), but need not be. In this way, they can also be spaced apart from one another at different positions.
  • one of the two components 83 or 84 can be mounted directly on the hinge sword, so that the specularly reflecting region 87 can be dispensed with.
  • FIG. 11 shows a sectional side view of a section of a household microwave device 91 according to an eighth exemplary embodiment in the area of a door 92.
  • the light source 83 and the light detector 84 are arranged, for example, on a lower edge of a switch front 96.
  • the lower edge of the switch front 96 is opposite an upper door edge when the door 92 is closed.
  • Also shown are a detail from an upper edge region of the door 92 opposite the door hinges 205 when the door 92 is closed and when the door 92 is open.
  • an optical aisle system 93 is integrated, which deflects a light beam incident from the light source 83 in a U-shape.
  • the optical aisle system 93 can have, for example, deflection mirrors arranged in a U-shaped light channel.
  • the light beam emitted by the light source 83 can only enter the optical aisle system 93 if the door 92 is closed or has a door opening angle that corresponds to the switching angle of the door 92 or is smaller than the switching angle.
  • the light beam can also be deflected only by the optical aisle system 93 into the light detector 84 serving as a door opening safety switch when the door 92 is closed.
  • the light beam L emitted by the light source 93 will not fall into the optical aisle system 93, so that the light detector 84 does not detect it.
  • the microwave generator 202 only when the light beam L is detected in the light detector 84 can the microwave generator 202 be activated, otherwise the microwave generator 202 is deactivated.
  • the light source 83, the light detector 84 and the optical aisle system 93 can be viewed as a light barrier 83, 84, 93.
  • the household microwave device 91 furthermore optionally has a movable diaphragm 94, which is attached to the housing 209 and has two light passage openings between the light source 83 and the light detector 84 on the one hand and the optical aisle system 93 on the other hand, namely a first light passage opening for the optical one Aisle system 93 incident light beam and a second light passage opening for the deflected light beam emerging from the optical aisle system 93.
  • the aperture 94 is connected to a spring element 95 which presses the aperture 94 in a front direction.
  • the door 92 When the door 92 is closed, the door holds the diaphragm 94 against the spring force of the spring element 95 in a position in which the light beam can pass through the two light exit openings, so that the light beam falls into the light detector 84 (upper enlarged section) .
  • the diaphragm 94 When the door 92 is closed, the diaphragm 94 is displaced so far forward by the spring force of the spring element 95 that the two light exit openings are so far against the
  • the light path is offset so that the aperture 94 covers the light source 83 and the light detector 84 (lower enlarged section).
  • the aperture 94 covers the light source 83 and the light detector 84 (lower enlarged section).
  • the aperture 94 can in particular be designed as a wiper.
  • FIG. 12 shows a sectional side view of a household microwave device 101, which has a first light barrier 83, 84, 102 with light source 83 and light detector 84, which are arranged in the area of a switch front 96.
  • the light beam L emitted by the light source 83 is reflected here on a specularly reflecting region 102 of the door saber 103, in such a way that it is only when the door 104 is closed (ie when the door 104 assumes a door opening angle equal to or less than the switching angle) falls into the light detector 84.
  • a second light barrier 83, 84, 105 can be provided behind the switch front 96 in the housing 209.
  • the light beam L emitted by the light source 83 thereof is reflected on a particularly other specularly reflecting region 105 of the door sword 103 or of the connecting member 106, and also in such a way that it only works when the door 104 is closed (ie when the door 104 has an opening angle) equal to or less than the switching angle) falls into the light detector 84.
  • the light source 83 and the light detector 83 of the first and / or the second light barrier can - in particular in each case - be preceded by an aperture 94.
  • the microwave generator 202 can only be activated if the door 104 has carried out a closing operation in the correct sequence, for example by only then controlling a relay for actuating (for example an inverter) the microwave generator 202.
  • 13 shows a sectional side view of a section of a household microwave oven 11 1.
  • the associated door opening safety switch 112 is now a magnetically switchable switch, for example a Hall sensor or a reed relay, and is here on an upper one Edge of the door flange 115 arranged.
  • the door 1 13 has a magnet (permanent magnet or electrically energizable coil) 1 14 in a region opposite the door opening safety switch 112 when the door 113 is closed.
  • the magnet 1 14 is dimensioned such that it switches the door opening safety switch 1 12 when the door 1 13 closes when the switching angle is reached. As a result, the microwave generator 202 is in turn activated.
  • the magnetically switchable door opening safety switch 112 can be located in the door 113, while the magnet 114 is located in the region of the door flange 115.
  • the door opening safety switch 1 12 in an area of the door frame other than the door flange 115, e.g. at a side of the closed edge 1 13 of the closed edge of the switch front 215.
  • FIG. 14 shows a sectional side view of a section of a household microwave device 121.
  • a magnet 114 is arranged in the door 122 and in a region of a door frame opposite the closed door 122 ( here: in the area of the door flange 129) a magnetically switchable magnetic sensor 123 (for example a Hall sensor or a reed switch) is arranged.
  • the signal from the actuated magnetic sensor 123 is converted in an evaluation electronics 124 and switches an actuator 125 (e.g. a coil), the blocking component (e.g. an anchor bolt 126) of which is then pulled in (e.g. pulled upwards).
  • an actuator 125 e.g. a coil
  • the blocking component e.g. an anchor bolt 126) of which is then pulled in (e.g. pulled upwards).
  • a switch actuator 127 is released and (when the door 122 is closed) pressed backwards on a door opening safety switch 4, in particular pushed.
  • the door opening safety switch 4 which e.g. is designed in the form of a microswitch, is actuated.
  • a spring (damping spring or "buffer spring” 128) is provided half of the switch actuator 127, which dampens the door closing process and buffers it.
  • FIG. 15 shows a sectional side view of a section of a household microwave device 131.
  • the door 132 of the household microwave device 131 has a recess 133 in an area opposite a door flange 139, in which a firmly attached door plunger 134 is completely accommodated .
  • the door plunger 134 does not protrude beyond a rear door plane 216 of the door 132 and therefore does not hinder a user.
  • a spring-supported, linearly displaceable switch actuator 136 protrudes from the front of the door flange 139, and when the door 132 closes, the door tappet 134 moves the switch actuator 136 in such a way that it pushes the door opening safety switch 4, which here e.g. is present as a microswitch.
  • a e.g. tubular contact protection 137 or cover is present, which laterally surrounds or encloses the switch actuator 136 when the door 132 is open.
  • the touch guard 137 can be elastically deformable or stiff.
  • the contact protection 137 can be equipped on its free edge on the front side with a laterally displaceable sliding slot 138 which can be easily moved by the door tappet 134 of the door 132.
  • the sliding slot 138 supports a particularly reliable immersion of the door plunger 134 in the contact guard 137.
  • the sliding slot 138 also enables a greater tolerance when installing the door 132, i.e. the door plunger 134 does not have to hit the contact guard 137 exactly.
  • the door plunger 134 does not have to be made so narrow (preferably 5 to 15 mm) on the door 132, which in turn gives the advantage that the switch actuator 136 is not necessarily made of steel or a comparable solid material must exist. In the present case, protection against contact is already guaranteed for parts which are approx. 3 mm or larger, in particular wider.
  • FIG. 16 shows a sectional side view of a section of a household microwave device 141.
  • the household microwave device 141 is constructed similarly to the household microwave device 131, but now has a — flexible or rigid — contact protection 142 without a sliding slot .
  • the door plunger 144 is movably mounted laterally or laterally in a bearing 145.
  • the door tappet 144 does not protrude beyond the rear door plane 216 of the door 146.
  • FIG. 17 shows a sectional side view of a section of a household microwave oven 151.
  • the door 152 has a recess 153 in a rear area opposite a door flange 157, in which a linearly movable, straight door tappet 154 is open Door 152 is fully accommodated.
  • the door flange 157 has a plunger (actuator plunger) 155 which projects permanently or permanently from the front.
  • the door 152 in turn has a trigger device 156 on an area opposite the actuator tappet 155, which can be triggered when the door 152 is closed by the actuator tappet 155 of the door flange 157, the triggering device 156 being set up to trigger the door tappet 154 out of the recess when it is triggered 153 to advance.
  • the door opening safety switch 4 is arranged on an area opposite the door tappet 154 such that when the door 152 closes, the advanced door tappet 154 plunges into the door flange 157 and actuates the door opening safety switch 4.
  • the door opening safety switch 4 is located in particular in a straight line behind a passage opening in the door flange 157 for the door tappet 154.
  • the above arrangement also allows, for example, a translation in the door 152.
  • the door plunger 154 can alternatively be folded out.
  • FIG. 18 shows a sectional side view of a detail from a household microwave device 161.
  • the household microwave device 161 is configured similarly to the household microwave device 151, the door tappet 162 now being rotatable. is movable plunger and in particular can have a curved shape.
  • the door plunger 162 is also completely accommodated in the door 166 when the door 166 is open.
  • the trigger device 164 which can be actuated by the actuator plunger 155 and is accommodated in the receptacle 163 of the door 166, can have, for example, a rotatable, automatically resettable turntable 165 which can be rotated by the actuator plunger 155.
  • the door opening safety switch 4 is also here behind the door flange 167, but not in a straight line (“line-of-sight”) behind a passage opening in the door flange 167 for the door tappet 162, as a result of which manipulation security can be further increased.
  • FIG. 19 shows a conventional household microwave device 201, having a microwave generator 202 for generating microwaves, a treatment room 203 which can be acted upon by the microwaves, with a loading opening 204, a microwave-proof door 206 which can be pivoted via door hinges 205 for locking the fittings - opening 204 and at least one door opening safety switch 207 which interrupts operation of the microwave generator 206 when the door is open.
  • the door opening safety switch 207 can be arranged directly in a circuit of the microwave generator 202 or - as shown - can be connected to a control device 208 which monitors the switching state of the door opening safety switch 207 and activates the microwave generator 202 when the door opening safety switch 207 is actuated, otherwise deactivated.
  • the door hinge 205 is fixedly connected to a housing 209 of the household microwave device 201 and has a door sword 210 which is fixedly and positively connected to the door 206 and can be pivoted against the rest of the door hinge 205.
  • the door sword 210 is connected via a connecting link 21 1 to a damping element 212, which is designed here as an elastic spring.
  • the household microwave device 201 has a switch front or control panel 215.
  • the door 206 has a rear side, which in the closed state of the door 206 points in the direction of the housing 209 and delimits the treatment room 203 a rear door plane 216 permanently protruding plunger 213.
  • a permanently protruding plunger 213 is understood to mean, in particular, a plunger which protrudes beyond the rear door plane 216 of the door 206 at every door opening angle.
  • the plunger 213 dips into an opening in a door flange 214 and the door opening safety switch 207.
  • the door opening safety switch 207 is thus accommodated in the housing 209.
  • the present invention is not limited to the exemplary embodiment shown.
  • the microswitch basically any other suitable switch, e.g. a magnetically switchable switch can be used.
  • the door opening safety switch and / or the components actuating the door opening safety switch can also be arranged at another point on the door frame, for example on a region of the door frame that is lateral with respect to the door hinges.
  • a number can also include the specified number as well as a customary tolerance range, as long as this is not explicitly excluded.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Special Wing (AREA)

Abstract

L'invention concerne un appareil à micro-ondes ménager (1) présentant un générateur de micro-ondes (202) destiné à produire des micro-ondes, une chambre de traitement (203) pouvant être soumise à l'effet des micro-ondes et pourvue d'une ouverture de chargement (204), une porte (8) pouvant pivoter par l'intermédiaire de charnières (10) pour la fermeture de l'ouverture de chargement (204) et au moins un commutateur de sécurité (4) d'ouverture de porte, qui, lorsque la porte (8) est ouverte, interrompt un fonctionnement du générateur de micro-ondes (202), la porte (8) ne présentant pas de poussoir (213) faisant saillie en permanence d'un plan (216) arrière de la porte pour l'actionnement du ou des commutateurs de sécurité (4) d'ouverture de porte. L'invention peut être utilisée de manière particulièrement avantageuse dans des appareils à micro-ondes autonomes et des appareils combinés à micro-ondes.
PCT/EP2019/071071 2018-08-27 2019-08-06 Appareil à micro-ondes ménager WO2020043438A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2103378.2A GB2591656B (en) 2018-08-27 2019-08-06 Domestic microwave appliance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018214393.5A DE102018214393A1 (de) 2018-08-27 2018-08-27 Haushalts-Mikrowellengerät
DE102018214393.5 2018-08-27

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WO2020043438A2 true WO2020043438A2 (fr) 2020-03-05
WO2020043438A3 WO2020043438A3 (fr) 2020-04-23

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DE (1) DE102018214393A1 (fr)
GB (1) GB2591656B (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4068908A1 (fr) * 2021-03-31 2022-10-05 Whirlpool Corporation Système de verrouillage avec connexion de charnière pour porte d'appareil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112021008113T5 (de) * 2021-08-16 2024-06-20 V-Zug Ag Mikrowellenherd mit optischer Zugriffssicherung
CN114517616B (zh) * 2022-01-12 2024-07-12 广东美的厨房电器制造有限公司 铰链装置及箱体系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020744B3 (de) 2005-05-02 2006-12-14 Rational Ag Verfahren zum Führen eines Garprozesses unter Berücksichtigung des Öffnungsgrades zumindest einer Garraumöffnung und Gargerät zur Durchführung solch eines Verfahrens
US20140197161A1 (en) 2013-01-16 2014-07-17 Standex International Corporation Door switch apparatus for microwave ovens
EP2998496A1 (fr) 2014-09-19 2016-03-23 Laag S.r.l. Charnière, en particulier pour le couvercle d'un appareil ménager

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA953392A (en) * 1970-08-31 1974-08-20 General Corporation (The) Door locking system for microwave oven
GB2200748A (en) * 1987-01-16 1988-08-10 Europ Microwaves Limited Door alarm system
DE3840650A1 (de) * 1988-12-02 1990-06-07 Vogt Electronic Ag Elektronische tuersicherung fuer mikrowellengeraete
US7040673B2 (en) * 2003-12-08 2006-05-09 Emerson Electric Co. Motorized oven lock
DE202007012603U1 (de) * 2007-09-07 2009-01-22 Hettich-Oni Gmbh & Co. Kg Türscharnier eines Haushaltsgerätes
DE102010003430A1 (de) * 2010-03-30 2011-10-06 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Kippsicherung
DE102011078535A1 (de) * 2011-07-01 2013-01-03 BSH Bosch und Siemens Hausgeräte GmbH Scharnier für eine Tür eines Hausgeräts, Tür mit einem derartigen Scharnier sowie Hausgerät mit einem entsprechenden Scharnier als auch Verfahren zum Betätigen eines Türgriffs einer Tür
DE102011082859A1 (de) * 2011-09-16 2013-03-21 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät
DE102012209679B4 (de) * 2012-06-11 2023-10-05 BSH Hausgeräte GmbH Haushaltsgerät, insbesondere wasserführendes Haushaltsgerät mit einem analogen Sensor zur Detektion seiner Türstellung
DE102014100541B4 (de) * 2014-01-20 2021-07-22 Miele & Cie. Kg Scharniereinrichtung
DE102015000407B3 (de) * 2015-01-13 2016-04-21 Apparatebau Gronbach GmbH Scharnier sowie Herd mit einem solchen Scharnier
DE102015201106A1 (de) * 2015-01-23 2016-07-28 BSH Hausgeräte GmbH Haushaltsgerät, insbesondere Haushaltskältegerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020744B3 (de) 2005-05-02 2006-12-14 Rational Ag Verfahren zum Führen eines Garprozesses unter Berücksichtigung des Öffnungsgrades zumindest einer Garraumöffnung und Gargerät zur Durchführung solch eines Verfahrens
US20140197161A1 (en) 2013-01-16 2014-07-17 Standex International Corporation Door switch apparatus for microwave ovens
EP2998496A1 (fr) 2014-09-19 2016-03-23 Laag S.r.l. Charnière, en particulier pour le couvercle d'un appareil ménager

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4068908A1 (fr) * 2021-03-31 2022-10-05 Whirlpool Corporation Système de verrouillage avec connexion de charnière pour porte d'appareil

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GB2591656B (en) 2022-07-06
DE102018214393A1 (de) 2020-02-27
GB202103378D0 (en) 2021-04-28
GB2591656A (en) 2021-08-04
WO2020043438A3 (fr) 2020-04-23

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