EP3410456A1 - Dispositif de commande pour un appareil électroménager à aimant de maintien mobile dans un élément de commande ainsi qu'appareil électroménager - Google Patents

Dispositif de commande pour un appareil électroménager à aimant de maintien mobile dans un élément de commande ainsi qu'appareil électroménager Download PDF

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Publication number
EP3410456A1
EP3410456A1 EP18173341.1A EP18173341A EP3410456A1 EP 3410456 A1 EP3410456 A1 EP 3410456A1 EP 18173341 A EP18173341 A EP 18173341A EP 3410456 A1 EP3410456 A1 EP 3410456A1
Authority
EP
European Patent Office
Prior art keywords
operating
holding magnet
operating element
control element
holding
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
Application number
EP18173341.1A
Other languages
German (de)
English (en)
Other versions
EP3410456B1 (fr
Inventor
Uwe Has
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3410456A1 publication Critical patent/EP3410456A1/fr
Application granted granted Critical
Publication of EP3410456B1 publication Critical patent/EP3410456B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices
    • F24C7/082Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006Permanent magnet actuating reed switches
    • H01H36/0066Permanent magnet actuating reed switches magnet being removable, e.g. part of key pencil

Definitions

  • the invention relates to an operating device for a household appliance.
  • the operating device has a control element receptacle and a control element.
  • the operating element is detachably and positionably positionable on the operating element holder, wherein the operating element is held on the operating element holder in a mounted state by means of a magnetic holding force.
  • the operating element has a holding element-internal holding magnet.
  • the invention also relates to a household appliance with such an operating device.
  • Control devices in which a separate control element can be placed non-destructively releasably on a control element receptacle and it can be removed again are well known.
  • recording operating conditions of the household appliance can be adjusted by movements of the operating element.
  • a holding magnet which interacts with a further holding magnet arranged in the operating element receptacle is fixedly arranged in the operating element in order to generate the magnetic holding force in the mounted state of the operating element on the operating element receptacle.
  • the holding magnet which is arranged in the operating element receptacle, is arranged pivotably on a carrier.
  • the magnetic field of the holding magnet in the operating element acts permanently and externally to the operating element.
  • the magnetic field is generated in particular on this underside of the control element to the outside and in this respect also relatively strong.
  • this bottom can also come relatively close to a body part of a user, for example, if this control element held in the hand or is placed in a jacket pocket or a shirt pocket.
  • this magnetic field then also acts accordingly strong and with appropriate range on this underside outside of the control element, it can act in the environment and reacting to this magnetic components.
  • objects can be attracted, which then adhere to the operating element magnetically.
  • This may also be the case, for example, when the operating element is stowed in a drawer in a kitchen in which other metallic objects, in particular magnetically interacting objects, are also present.
  • This can be, for example, pull-out rails on which drawers are slidably mounted. It may then lead in the context to unwanted magnetic brackets of the control element on this rail, which may thereby be optionally blocked or the control then, for example, can not be found.
  • this magnetic field of the removed control element can act on electronic devices of life aids, such as a pacemaker or a hearing aid, which can lead to impairment of the functioning of these life aids.
  • the operating device has a control element receptacle.
  • the operating device furthermore has a control element separate from the operating element receptacle.
  • the operating element can be accommodated on the operating element receptacle and can be positioned in a detachable manner. This means that it can be non-destructively releasably positioned thereon and removed again.
  • the operating element is held by means of magnetic holding force on the operating element holder in the attached state.
  • the control element has for this purpose an internal holding magnet. This holding magnet of the operating element is arranged to be movable in a defined manner in the operating element.
  • the holding magnet of the operating element can be positioned in a use position and in a different stowed position in the operating element. It can thus be taken at least two defined specific positions in the control element itself for the holding magnet.
  • the position of use is the one in which the holding magnet generates the largest possible magnetic field to the outside in order to achieve the highest possible magnetic holding force in the mounted state on the operating element recording.
  • the stowage position is that in which the holding magnet is so positioned inside the operating element itself that its magnetic field is reduced towards the outside and thus beyond the operating element, in particular in relation to the position of use. This means that the range of the magnetic field is reduced from the operating element in the stowed position relative to the position of use and / or the strength of the magnetic field is reduced in this regard.
  • the holding magnet rests in the use position on an underside of a housing of the operating element.
  • This underside is facing in the attached to the control element recording state of the control element of this control element receptacle.
  • the holding magnet is arranged to be maximally adjacent relative to this exposed side of the housing in order to keep the range of the magnetic field generated by it in the region outside of this underside of the housing as large as possible.
  • the holding magnet in the stowed position is spaced from this underside of the housing of the operating element and set back in the interior of the housing.
  • the holding magnet of the operating element is arranged to be linearly movable in the operating element. This allows a very simple movement concept of the holding magnet and unwanted jamming or spreading during movement is avoided.
  • the holding magnet is arranged movably along a longitudinal axis of the operating element in the operating element.
  • the operating element has a positioning device which is coupled to the holding magnet of the operating element. With the positioning of the holding magnet of the operating element in its position in the operating element is changeable.
  • the positioning device is arranged in particular on the inside in a housing of the operating element. As a result, it is arranged protected, whereby the permanent functionality is achieved.
  • Such an additional separate positioning device thus actively completes the movement of the holding magnet so that the desired different positions of the holding magnet in the operating element can be adjusted very precisely and reliably.
  • a housing of the control element is formed from several parts and these parts are non-destructively releasably connected to each other.
  • the holding magnet of the operating element and this positioning device are mechanically connected at a connection point, in particular directly connected to each other.
  • the action of the positioning device on the holding magnet for its position adjustment in the interior of the operating element can be very direct and immediate.
  • an immediate and rapid and accurate position adjustment of the holding magnet is achieved in the control.
  • the holding magnet of the operating element has a magnetic field shielding element on the side facing the positioning device.
  • the positioning device has a magnetic field shielding element on the side facing the holding magnet.
  • the positioning device is designed such that it is variable in length, whereby this change in length, the position adjustment of the holding magnet coupled thereto is set.
  • the positioning device is variable in length in itself, this above-mentioned advantageous embodiment with the at least one magnetic field shielding advantageous. Because this avoids that the positioning device remains in its maximum length shortened position when the holding magnet by its permanently acting magnetic field at this positioning device adheres in this length-shortened position and lengthen lengthen this positioning prevents.
  • the positioning device comprises a spring, in particular a spring, with which the holding magnet of the operating element is connected.
  • the holding magnet is independently positionable in a stowed position in the control.
  • the spring is therefore designed so that it holds the holding magnet in the stowed position, especially in the relaxed state. This ensures that the holding magnet, if it does not enter into magnetic interaction, in particular with the holding magnet of the operating element holder, is withdrawn by the spring force into the interior of the housing of the operating element and is held there accordingly and lingers.
  • the holding magnet is movable by interaction with a user-external force in a use position in the control element.
  • this is achievable by, as described above, in particular by the magnetic interaction with the holding magnet of the operating element holder.
  • the operating element on an upper side, which faces away in the attached to the control element receiving state of the control element of the control element receiving a housing of the operating element, in particular separate, magnetic field shielding.
  • the range of the magnetic field outside of the operating element in the area of this upper side and / or sidewalls of the operating element in the range and / or the strength is thus also reduced.
  • This magnetic field shielding element can be additionally applied to the housing. It may be formed as an outer end part and thus outer shell part. However, it can also be arranged inside the housing of the operating element.
  • this magnetic field shielding element has at least one light exit opening, through which light of a light source of the operating element can exit.
  • control element receptacle also has a holding magnet, which occurs in the patch on the control element receiving state of the operating element for generating the magnetic holding force in interaction with the control element internal holding magnet.
  • this holding magnet of the operating element receptacle is arranged movably in the operating element receptacle.
  • a mobility of this holding magnet is provided here, in which the distance to a top of the control element holder is defined variable.
  • the mobility of the holding magnet of the operating element holder can be made possible by a positioning device.
  • This positioning device may be formed purely mechanically or else electromechanically or electromagnetically or hydraulically or pneumatically.
  • the invention also relates to a household appliance, in particular for preparing food, which has an operating device according to the above-mentioned aspect or an advantageous embodiment thereof.
  • the household appliance may in particular be a hob.
  • the invention also relates to a cooking appliance, in particular a hob, with an operating device according to the above-mentioned aspect or an advantageous embodiment thereof.
  • top, bottom, front, “rear”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” etc. are the intended use and proper arrangement of the operating device or of the cooking appliance and at a given then in front of the operating device or the cooking appliance and in the direction of the operating device or the cooking appliance views given observer positions and orientations.
  • Fig. 1 is shown in a simplified representation of a household appliance for preparing food, which in particular a cooking appliance, preferably a cooktop 1, may be.
  • the cooktop 1 has a cooktop plate 2, on the only in the number, position and shaping to understand cooking zones 3, 4, 5 and 6 formed are.
  • the hob 1 also has an operating device 7, which is also to be understood in position and size only by way of example.
  • the operating device 7 has a control element receptacle 8, which is formed here by way of example on the hob plate 2.
  • 2 components of the control element holder 8 are also arranged below the hob plate.
  • the operating device 7 also has an operating element 9, which is formed separately from the operating element holder 8.
  • the control element 9 is formed here discus-shaped or puck-like.
  • the operating element 9 is in Fig. 1 shown in the patch on the control element 8 recording state.
  • the control element 9 is non-destructively removable detachable from the control element holder 8 and put back. In the attached state, the operating element 9 is held by magnetic holding force on the control element holder 8.
  • FIG. 2 is a schematic representation of a section through an embodiment of the operating device 7 is shown, in which case the arrangement on the hob plate 2 is shown.
  • the operating element 9 has a housing 10. In an interior 11 of the housing 10, a holding magnet 12 is arranged.
  • the holding magnet 12 is preferably a permanent magnet. It is centrally located here and thus arranged in particular coaxially to the longitudinal axis A of the operating element 9.
  • the longitudinal axis A also defines an axis of rotation about which the operating element 9 is rotatable relative to the mounted on the control element holder 8 state.
  • the housing 10 has an underside 13, with which the operating element 9 is seated on the operating element receptacle 8. If the underside is uneven, in particular convexly curved, or is frustoconical, the operating element 9 can also be tilted in order to set operating conditions, for example, to be able to individually select the cooking zones 3 to 6.
  • the holding magnet 12 is arranged in the interior 11 and there arranged movably defined. This means that the holding magnet 12 can move in a defined manner relative to the housing 10. It is provided here that this mobility is linear, in particular given only in the direction of the longitudinal axis A.
  • the holding magnet 12 is arranged in a guide 14 which is arranged in the interior 11, movable.
  • This guide 14 preferably extends substantially over the entire distance between the bottom 13 and a top 15 of the housing 10th
  • the housing 10 may be formed in one piece, but may also be formed of a plurality of separate parts, so that these parts can be separated and non-destructively detachable separated and reassembled. As a result, it is also possible to get into the interior 11 of the housing 10.
  • the operating element 9 also has a positioning device 16, which is coupled to the holding magnet 12, in particular is mechanically directly connected.
  • the positioning device 16 is arranged in the interior 11 and is designed here in particular as a spring.
  • the positioning device 16 is mechanically connected directly to the holding magnet 12 at a connection point 17.
  • the spring with the housing 10 is firmly connected.
  • the spring extends with its spring axis parallel, in particular coaxial, to the longitudinal axis A.
  • the holding magnet 12 has a magnetic field shielding element 18 on the side facing the positioning device 16.
  • the magnetic field of the holding magnet 12 is weakened in the direction of the positioning device 16 at least in such a way that a so-called magnetic adhesive effect of the holding magnet 12 is prevented at the positioning device 16, in particular when the holding magnet 12 in an in Fig. 3 shown Stowing position is located in the control element 9 and thus in particular the spring is maximally compressed and minimized length.
  • the mobility of the holding magnet 12 can be maintained in the control element 9 without restriction, in particular the mobility of the stowed out in the in Fig. 2 shown position of use.
  • the holding magnet 12 In this mentioned position of use of the holding magnet 12, as in Fig. 2 is shown, the holding magnet 12 is directly adjacent to the bottom 13 and thus deflected or positioned maximally down. In this position of use, the magnetic field of the holding magnet 12 is formed maximally outward over the bottom 13 or the range of this magnetic field and thus also the strength of this magnetic field in the surrounding area of the bottom 13 is formed. This can be a particularly advantageous interaction with a holding magnet 19, which is part of the control element holder 8 done. This further holding magnet 19 is arranged below the hob plate 2. In Fig. 2 the state is shown in which the two holding magnets 12 and 19 interact with each other such that the magnetic holding force for holding the operating element 9 is formed on the control element holder 8. In the embodiment in Fig.
  • the further holding magnet 19 is movable in a defined manner and thus here preferably a distance a from the underside of the hob plate 2 is variable.
  • the further holding magnet 19 in a guide 20 is linearly movable.
  • a further positioning device 21 is provided, with which this further holding magnet 19 is defined in its position relative to the hob plate 2 can be changed.
  • the positioning device 21 is a spring, as in Fig. 2 is shown.
  • the further holding magnet 19 has a magnetic field shielding element 22 which is formed on the side facing the positioning device 21. It can thus be avoided in this further holding magnet 19 of the above-mentioned magnetic adhesive effect on the positioning device 21.
  • the positioning device 21 in particular if it is made of a magnetically interacting material, has such a magnetic field shielding element so that it is present in addition to the magnetic field shielding element 18 or is present instead of this magnetic field shielding element 18.
  • the same can also be provided in the embodiment of the holding magnet 19 and the positioning device 21.
  • the housing 10 also has a magnetic field shielding element 23, which is formed on the top and / or side walls of the housing 10.
  • a magnetic field shielding element 23 is formed on the top and / or side walls of the housing 10.
  • Fig. 3 is in a sectional view corresponding to in Fig. 2 the state shown in which the operating element 9 is removed from the control element holder 8. It can be seen here that the holding magnet 12 is in its stowed position and in this respect to the position of use in Fig. 2 is withdrawn into the interior 11. In particular, he is in this regard clearly objected to the bottom 13 in the interior 11 positioned.
  • the spring is shown here in the maximum compressed state.
  • the control element 9 then placed back on the control element holder 8, the magnetic interaction between the holding magnets 12 and 19 is stronger than the restraining force of the spring, so that then automatically pulled by the magnetic interaction of the holding magnet 12 from the stowed position to the use position.
  • the advantageous embodiment shown here for the holding magnet 19, which is also of an in Fig. 2 shown use position in a in Fig. 3 shown stowage and vice versa can be moved.
  • a distance b is shown, the holding magnet 12 has from the bottom 13 in the illustrated stowed position.
  • This distance b can be several millimeters, in particular up to one cm. Other distance values are possible.
  • Fig. 4 is shown in an enlarged view, the control element 9, in which case the holding magnet 12 is shown in the position of use. It is here the extension and configuration of the magnetic field 24 of the holding magnet 12 beyond the bottom 13 addition shown. Serving for clarity, the magnetic field 24 is shown here only on one side of the longitudinal axis A, of course, this magnetic field 24 is formed outside the bottom 13 on the opposite side.
  • Fig. 5 Opposite is in Fig. 5 the configuration and extent of the magnetic field 24 shown outside the bottom 13 when the holding magnet 12 is arranged in its stowed position. It can be seen that the range and thus the strength of the magnetic field 24 is significantly reduced in this stowed position beyond the bottom 13, as in the illustration according to Fig. 4 ,
  • Fig. 6 the operating element 9 is shown in a further embodiment, in which the housing 10, in particular on the upper side 15 light exit openings 25 through which light from light sources 26 can emerge from the control element 9.
  • information for example about operating conditions, in particular the operating device 7, can be visually displayed.
  • the magnetic field shielding element 23 may be arranged in the interior 11, but may also be formed as an outside enveloping element. For this purpose, it can be arranged directly on an upper housing part of the housing 10, for example, be glued.
  • the positioning device 16 is formed in otherwise interaction with the holding magnet 12 in order to adjust its position in the interior 11.
  • the holding magnet 12 could then be an electromagnet, which is energized by a corresponding positioning device 16 to change its position in this regard.
  • the same could also be provided in the holding magnet 19 and the positioning device 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Toys (AREA)
EP18173341.1A 2017-05-31 2018-05-18 Dispositif de commande pour un appareil électroménager à aimant de maintien mobile dans un élément de commande ainsi qu'appareil électroménager Active EP3410456B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017209129.0A DE102017209129A1 (de) 2017-05-31 2017-05-31 Bedienvorrichtung für ein Haushaltsgerät mit bewegbarem Haltemagnet in einem Bedienelement sowie Haushaltsgerät

Publications (2)

Publication Number Publication Date
EP3410456A1 true EP3410456A1 (fr) 2018-12-05
EP3410456B1 EP3410456B1 (fr) 2022-04-20

Family

ID=62222411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18173341.1A Active EP3410456B1 (fr) 2017-05-31 2018-05-18 Dispositif de commande pour un appareil électroménager à aimant de maintien mobile dans un élément de commande ainsi qu'appareil électroménager

Country Status (4)

Country Link
EP (1) EP3410456B1 (fr)
DE (1) DE102017209129A1 (fr)
ES (1) ES2912982T3 (fr)
PL (1) PL3410456T3 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19906365A1 (de) * 1999-02-16 2000-08-17 Bsh Bosch Siemens Hausgeraete Bedienelement, beispielsweise für ein Kochfeld
EP0797227B1 (fr) 1996-03-20 2003-11-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Dispositif de commande d'appareils à commande électrique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5424533A (en) * 1994-06-21 1995-06-13 United Technologies Corporation Self illuminating touch activated optical switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0797227B1 (fr) 1996-03-20 2003-11-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Dispositif de commande d'appareils à commande électrique
DE19906365A1 (de) * 1999-02-16 2000-08-17 Bsh Bosch Siemens Hausgeraete Bedienelement, beispielsweise für ein Kochfeld

Also Published As

Publication number Publication date
EP3410456B1 (fr) 2022-04-20
ES2912982T3 (es) 2022-05-30
PL3410456T3 (pl) 2022-08-01
DE102017209129A1 (de) 2018-12-06

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