EP1564498A1 - Switching device for controlling of an industrial cooking appliance - Google Patents

Switching device for controlling of an industrial cooking appliance Download PDF

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Publication number
EP1564498A1
EP1564498A1 EP05001461A EP05001461A EP1564498A1 EP 1564498 A1 EP1564498 A1 EP 1564498A1 EP 05001461 A EP05001461 A EP 05001461A EP 05001461 A EP05001461 A EP 05001461A EP 1564498 A1 EP1564498 A1 EP 1564498A1
Authority
EP
European Patent Office
Prior art keywords
door
switch
switching device
magnet
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
Application number
EP05001461A
Other languages
German (de)
French (fr)
Other versions
EP1564498B1 (en
Inventor
Rainer Lammerskitten
Hannes Wild
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.)
Welbilt Deutschland GmbH
Original Assignee
Convotherm Elektrogeraete 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
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Application filed by Convotherm Elektrogeraete GmbH filed Critical Convotherm Elektrogeraete GmbH
Publication of EP1564498A1 publication Critical patent/EP1564498A1/en
Application granted granted Critical
Publication of EP1564498B1 publication Critical patent/EP1564498B1/en
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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
    • F24C15/022—Latches

Definitions

  • the invention relates to a switching device for the controller a commercial cooking appliance according to the preamble of Claim 1.
  • switching devices which consist of a contact and a magnet operating in the oven door are constructed. Investigations carried out within the scope of the invention however, have shown that, due to the current Arrangement of the switch and the magnet of the switching device especially when slamming the door short contacts of the Switch, which is mainly the fan or the fan and the heater is operated at short notice. The reason for that is mainly seen in the fact that by slamming the door gets into short-circuit contact at short notice and thereby unwanted contacts made, resulting in the previously explained unintentional actuation of the blower or the fan leads.
  • a switching device specified in the preamble of claim 1 Way of creating that turning off a particular fan and the heater of a cooking appliance in the Anlrange ein the door of the cooking chamber ensures and on the other hand avoidance Unwanted contacts possible.
  • the magnet arranged to actuate the housing fixed Switch arranged in the movable door latch of the door handle is the opportunity to exploit the circumstance that the locked position of the door is a well-defined Positioning of the bolt yields.
  • This circumstance will exploited by the invention, since the magnet in the movable Door latch is arranged such that it locks in the Condition of the door so adjacent to the housing fixedly arranged Switch is positioned that reliable in this position a contact of the switching device and thus a Operation of the control device is accomplished, in any other position of the door and thus the door bolt, however Such contact is certainly avoidable.
  • the contact is not dependent on the distance of the door to the housing, as is the case in the prior art, but from the position of a closing element, in particular in the form a bolt.
  • the cooking chamber has a door 3, between one in the Figures not shown open position, one shown in Fig. 1 Anlwestwolf with a gap 8 between a seal. 9 and the door 3 and a closed position shown in Fig. 2 is movable.
  • the door 3 has a door handle 4, the with a movable according to its movement door latch 5 is provided.
  • the door latch 5 acts with a mechanism to achieve the previously described different positions the door 3 together.
  • FIGS. 1 and 2 illustrate the arrangement of a housing fixed Switch 6, for example, designed as a reed switch can be.
  • This switch 6 is shown in FIGS. 1 and 2 shown schematically simplified and is at a suitable Housing part of the cooking appliance 2 fixed.
  • Fig. 2 illustrates that in the movable door latch 5, a magnet 7, preferably in the form of a permanent magnet, is integrated. Since the door latch 5 between the different positions the door 3 is movable and thus different positions relative to the switch 6, it is possible according to the invention both contacting and avoidance of a To ensure contact.
  • Fig. 1 shows that when moving the door handle 4 in the Anllibrary ein the door latch 5 shown there with his integrated magnet 7 is pivoted away from the switch 6, so that in this position even with a heavy slamming the door 3 due to the resulting distance between Switch 6 and magnet 7 sure a contact and thus an actuation of the switching device 1 is avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

The commercial cooking oven (2), with a closure door (3) at a sealing (9) and a hand grip (4), has a switch unit (1) with a door locking bolt (5). The unit has a reed switch (6) fixed to the housing, to be operated by a permanent magnet to move the bolt as required and allow the door to be opened partially to expose a gap (8).

Description

Die Erfindung betrifft eine Schalteinrichtung für die Steuerung eines gewerblichen Gargerätes gemäß dem Oberbegriff des Anspruches 1.The invention relates to a switching device for the controller a commercial cooking appliance according to the preamble of Claim 1.

Gewerbliche Gargeräte, wie insbesondere Heißluftdämpfer, weisen eine Gerätesteuerung für sämtliche zu steuernden Komponenten, wie insbesondere das Gebläse und die Heizeinrichtung, auf. Hierbei muss sichergestellt sein, dass die Steuerung beim Öffnen der Tür in eine Anlüftstellung, in der zwischen Tür und Gerätegehäuse nur ein kleiner Spalt zum Druckausgleich offen gelassen wird, und in die vollständige Offenstellung der Tür insbesondere das Gebläse und die Heizeinrichtung sofort ausschaltet, da es sonst zu Verbrennungen und/oder Verbrühungen des Bedienpersonals kommen kann.Commercial cooking appliances, in particular combi steamer, have a device control for all components to be controlled, especially the blower and the heater, on. In doing so, it must be ensured that the control is activated during Opening the door in a ventilation position, between the door and Appliance housing only a small gap for pressure equalization open is left, and in the full open position of the door in particular the fan and the heater switch off immediately, otherwise it will cause burns and / or scalds of the operating personnel can come.

Hierfür sind Schalteinrichtungen bekannt, die aus einem Kontakt und einem diesen betätigenden Magneten in der Garraumtür aufgebaut sind. Im Rahmen der Erfindung durchgeführte Untersuchungen haben jedoch ergeben, dass aufgrund der derzeitigen Anordnung des Schalters und des Magneten der Schalteinrichtung vor allem beim Zuschlagen der Tür kurze Kontaktierungen des Schalters erfolgen, was vor allem das Gebläse bzw. den Lüfter und die Heizeinrichtung kurzfristig betätigt. Der Grund hierfür ist hauptsächlich darin zu sehen, dass durch das Zuschlagen der Tür diese kurzfristig in Schließkontakt gerät und dadurch ungewollte Kontaktierungen erfolgen, was zu dem zuvor erläuterten ungewollten Betätigen des Gebläses bzw. des Lüfters führt.For this purpose switching devices are known which consist of a contact and a magnet operating in the oven door are constructed. Investigations carried out within the scope of the invention however, have shown that, due to the current Arrangement of the switch and the magnet of the switching device especially when slamming the door short contacts of the Switch, which is mainly the fan or the fan and the heater is operated at short notice. The reason for that is mainly seen in the fact that by slamming the door gets into short-circuit contact at short notice and thereby unwanted contacts made, resulting in the previously explained unintentional actuation of the blower or the fan leads.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Schalteinrichtung der im Oberbegriff des Anspruches 1 angegebenen Art zu schaffen, die ein Ausschalten insbesondere des Lüfters und der Heizeinrichtung eines Gargerätes in der Anlüftstellung der Tür des Garraumes sicherstellt und andererseits die Vermeidung ungewollter Kontaktierungen ermöglicht.It is therefore an object of the present invention, a switching device specified in the preamble of claim 1 Way of creating that turning off a particular fan and the heater of a cooking appliance in the Anlüftstellung the door of the cooking chamber ensures and on the other hand avoidance Unwanted contacts possible.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruches 1.The solution of this problem is achieved by the features of the claim 1.

Dadurch, dass der Magnet zur Betätigung des gehäusefest angeordneten Schalters im bewegbaren Türriegel des Türgriffes angeordnet ist, ergibt sich die Möglichkeit, den Umstand auszunutzen, dass die verriegelte Stellung der Tür eine genau definierte Positionierung des Riegels ergibt. Dieser Umstand wird durch die Erfindung ausgenutzt, da der Magnet in dem bewegbaren Türriegel derart angeordnet ist, dass er im verriegelten Zustand der Tür derart benachbart zum gehäusefest angeordneten Schalter positioniert wird, dass in dieser Stellung verlässlich eine Kontaktierung der Schalteinrichtung und damit eine Betätigung der Steuereinrichtung bewerkstelligt wird, in jedweder anderer Stellung der Tür und damit des Türriegels jedoch eine derartige Kontaktierung sicher vermeidbar ist. Die Kontaktierung ist damit nicht vom Abstand der Tür zum Gehäuse abhängig, wie dies beim Stand der Technik der Fall ist, sondern von der Stellung eines Schließelementes, insbesondere in Form eines Riegels.Characterized in that the magnet arranged to actuate the housing fixed Switch arranged in the movable door latch of the door handle is the opportunity to exploit the circumstance that the locked position of the door is a well-defined Positioning of the bolt yields. This circumstance will exploited by the invention, since the magnet in the movable Door latch is arranged such that it locks in the Condition of the door so adjacent to the housing fixedly arranged Switch is positioned that reliable in this position a contact of the switching device and thus a Operation of the control device is accomplished, in any other position of the door and thus the door bolt, however Such contact is certainly avoidable. The contact is not dependent on the distance of the door to the housing, as is the case in the prior art, but from the position of a closing element, in particular in the form a bolt.

Die Unteransprüche haben vorteilhafte Weiterbildungen der Erfindung zum Inhalt.The subclaims have advantageous developments of the invention Go to content.

Weitere Einzelheiten, Merkmale und Vorteile dieser Erfindung ergeben sich aus nachfolgender Beschreibung einer Ausführungsform anhand der Zeichnung. Es zeigt:

Fig. 1
eine schematisch leicht vereinfachte Darstellung einer erfindungsgemäßen Schalteinrichtung in einer Anlüftstellung der Tür eines gewerblichen Gargerätes, und
Fig. 2
eine der Fig. 1 entsprechende Stellung in vollständig geschlossener Stellung der Tür des Gargerätes.
Further details, features and advantages of this invention will become apparent from the following description of an embodiment with reference to the drawing. It shows:
Fig. 1
a schematically slightly simplified representation of a switching device according to the invention in a Anlüftstellung the door of a commercial cooking appliance, and
Fig. 2
one of the Fig. 1 corresponding position in the fully closed position of the door of the cooking appliance.

Aus der Zusammenschau der Fig. 1 und 2 ist eine Schalteinrichtung 1 für die Steuerung eines gewerblichen Gargerätes 2 bekannt, das einen nicht näher dargestellten Garraum aufweist. Der Garraum weist eine Tür 3 auf, die zwischen einer in den Figuren nicht gezeigten Offenstellung, einer in Fig. 1 gezeigten Anlüftstellung mit einem Spalt 8 zwischen einer Dichtung 9 und der Tür 3 und einer in Fig. 2 gezeigten Schließstellung bewegbar ist. Hierfür weist die Tür 3 einen Türgriff 4 auf, der mit einem entsprechend seiner Bewegung bewegbaren Türriegel 5 versehen ist. Der Türriegel 5 wirkt mit einer Mechanik zur Erreichung der zuvor erläuterten unterschiedlichen Stellungen der Tür 3 zusammen.From the synopsis of Figs. 1 and 2 is a switching device 1 for the control of a commercial cooking appliance 2 known which has a Garraum not shown. The cooking chamber has a door 3, between one in the Figures not shown open position, one shown in Fig. 1 Anlüftstellung with a gap 8 between a seal. 9 and the door 3 and a closed position shown in Fig. 2 is movable. For this purpose, the door 3 has a door handle 4, the with a movable according to its movement door latch 5 is provided. The door latch 5 acts with a mechanism to achieve the previously described different positions the door 3 together.

Die Fig. 1 und 2 verdeutlichen die Anordnung eines gehäusefesten Schalters 6, der beispielsweise als Reed-Schalter ausgebildet sein kann. Dieser Schalter 6 ist in den Fig. 1 und 2 schematisch vereinfacht dargestellt und ist an einem geeigneten Gehäuseteil des Gargerätes 2 fixiert.Figs. 1 and 2 illustrate the arrangement of a housing fixed Switch 6, for example, designed as a reed switch can be. This switch 6 is shown in FIGS. 1 and 2 shown schematically simplified and is at a suitable Housing part of the cooking appliance 2 fixed.

Fig. 2 verdeutlicht, dass im bewegbaren Türriegel 5 ein Magnet 7, vorzugsweise in Form eines Dauermagneten, integriert ist. Da der Türriegel 5 zwischen den unterschiedlichen Stellungen der Tür 3 bewegbar ist und somit unterschiedliche Stellungen relativ zum Schalter 6 einnimmt, ist es erfindungsgemäß möglich, sowohl eine Kontaktierung als auch eine Vermeidung einer Kontaktierung sicherzustellen.Fig. 2 illustrates that in the movable door latch 5, a magnet 7, preferably in the form of a permanent magnet, is integrated. Since the door latch 5 between the different positions the door 3 is movable and thus different positions relative to the switch 6, it is possible according to the invention both contacting and avoidance of a To ensure contact.

Fig. 1 zeigt hierbei, dass beim Bewegen des Türgriffes 4 in die dort gezeigte Anlüftstellung der Türriegel 5 mit seinem integrierten Magneten 7 vom Schalter 6 weggeschwenkt wird, so dass in dieser Stellung selbst bei einem heftigen Zuschlagen der Tür 3 aufgrund des dadurch sich ergebenden Abstandes zwischen Schalter 6 und Magnet 7 sicher eine Kontaktierung und damit eine Betätigung der Schalteinrichtung 1 vermieden wird.Fig. 1 shows that when moving the door handle 4 in the Anlüftstellung the door latch 5 shown there with his integrated magnet 7 is pivoted away from the switch 6, so that in this position even with a heavy slamming the door 3 due to the resulting distance between Switch 6 and magnet 7 sure a contact and thus an actuation of the switching device 1 is avoided.

In der in Fig. 2 dargestellten Schließstellung der Tür 3 hingegen nimmt der Riegel 5 eine genau definierte und durch den Türgriff 4 fixierte Stellung ein, in der der Magnet 7 ebenfalls eine genau definierte Lage relativ zum Schalter 6 einnimmt. Die Positionierung des Magneten 7 innerhalb des Türriegels 5 ist hierbei gemäß der Erfindung so getroffen, dass nur in dieser Stellung der Abstand zwischen dem Schalter 6 und dem Magneten 7 derart klein ist, dass die Schalteinrichtung 1 durch das Zusammenwirken des Schalters 6 und des Magneten 7 betätigt werden kann.In contrast, in the closed position of the door 3 shown in Fig. 2 takes the bar 5 a well-defined and by the Door handle 4 fixed position in which the magnet 7 also a precisely defined position relative to the switch 6 occupies. The positioning of the magnet 7 inside the door bolt 5 is in this case made according to the invention that only in this position, the distance between the switch 6 and the Magnet 7 is so small that the switching device. 1 by the interaction of the switch 6 and the magnet. 7 can be operated.

Sobald der Magnet 7 durch Betätigung des Türriegels 4 diese in Fig. 2 gezeigte Stellung verlässt, kann die Schalteinrichtung 1 nicht betätigt werden, so dass sicher ungewollte Kontaktierungen bei jedweder anderer Stellung der Tür 3 vermieden werden können.Once the magnet 7 by pressing the door bolt 4 this in Fig. 2 shown position leaves, the switching device 1 are not operated, so that safely unwanted contacts be avoided in any other position of the door 3 can.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schalteinrichtungswitching device
22
GargerätCooking appliance
33
Türdoor
44
Türgriffdoor handle
55
Türriegeldeadbolt
66
Schalterswitch
77
Magnetmagnet
88th
Spaltgap
99
Dichtungpoetry

Claims (3)

Schalteinrichtung (1) für die Steuerung eines gewerblichen Gargerätes (2), das einen Garraum aufweist, der mittels einer Tür (3) verschließbar ist, die einen bewegbaren Türgriff (4) mit einem daran angebrachten bewegbaren Türriegel (5) aufweist, mit einem gehäusefesten Schalter (6); und mit einem Magneten (7) zur Betätigung des Schalters (6), dadurch gekennzeichnet, dass der Magnet (7) im bewegbaren Türriegel (5) an einer Stelle angeordnet ist, die im verriegelten Zustand der Tür (3) des Gargerätes benachbart zum Schalter (6) positioniert ist. Switching device (1) for controlling a commercial cooking appliance (2) having a cooking chamber which can be closed by means of a door (3) which has a movable door handle (4) with a movable door latch (5) attached thereto, with a housing-fixed switch (6); and with a magnet (7) for actuating the switch (6), characterized in that the magnet (7) is arranged in the movable door latch (5) at a position which in the locked state of the door (3) of the cooking appliance is positioned adjacent to the switch (6). Schalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Magnet (7) als Dauermagnet ausgebildet ist.Switching device according to claim 1, characterized in that the magnet (7) is designed as a permanent magnet. Schalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schalter (6) ein Reed-Schalter ist.Switching device according to claim 1 or 2, characterized in that the switch (6) is a reed switch.
EP05001461.2A 2004-02-13 2005-01-25 Switching device for controlling of an industrial cooking appliance Active EP1564498B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007235 2004-02-13
DE102004007235.3A DE102004007235C5 (en) 2004-02-13 2004-02-13 Commercial cooking appliance

Publications (2)

Publication Number Publication Date
EP1564498A1 true EP1564498A1 (en) 2005-08-17
EP1564498B1 EP1564498B1 (en) 2015-04-08

Family

ID=34684052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001461.2A Active EP1564498B1 (en) 2004-02-13 2005-01-25 Switching device for controlling of an industrial cooking appliance

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US (1) US7176416B2 (en)
EP (1) EP1564498B1 (en)
DE (1) DE102004007235C5 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015110357A1 (en) 2015-06-26 2016-12-29 Rational Aktiengesellschaft Cooking appliance with switching device
DE102017209215A1 (en) 2017-05-31 2018-12-06 Convotherm Elektrogeräte GmbH Cooking appliance, in particular commercial cooking appliance
DE102017125817A1 (en) * 2017-11-06 2019-05-09 Topinox Sarl Cooking device and method for detecting a closed state
DE102020132156B4 (en) 2020-12-03 2022-11-03 Welbilt Deutschland GmbH Cooking device, in particular commercial cooking device
USD982415S1 (en) * 2022-12-19 2023-04-04 Ningbo Fabe Child Safety Co., Ltd. Oven door lock

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838917A1 (en) * 1988-11-17 1990-05-23 Hobart Ag Closure device for the door of a hot-air/steam oven
DE4329494A1 (en) 1993-09-01 1995-03-02 Premark Feg Corp Closing device for controlling door locking, especially the door locking of a furnace
DE29507654U1 (en) 1995-05-09 1996-09-05 Ramsauer Dieter Safety device for the closure of a control cabinet door, a machine cover or the like.
EP0937400A1 (en) 1998-02-13 1999-08-25 eloma GmbH Grossküchentechnik Process for safe and pollution-free baking and cooking of food
DE19914568C2 (en) 1999-03-31 2003-10-09 Elektro Special Bedarf Link Gm Magnetically operated detector with reed contact

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627959A (en) * 1970-03-19 1971-12-14 Sage Laboratories Magnetic latching and switching
US4995313A (en) * 1988-03-15 1991-02-26 Welbilt Corporation Cooking apparatus
KR940007232B1 (en) * 1991-12-31 1994-08-10 대우전자 주식회사 Door control system of a range
US7235762B2 (en) * 2004-06-14 2007-06-26 Western Industries, Inc. Factory preset temperature warming appliance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838917A1 (en) * 1988-11-17 1990-05-23 Hobart Ag Closure device for the door of a hot-air/steam oven
DE4329494A1 (en) 1993-09-01 1995-03-02 Premark Feg Corp Closing device for controlling door locking, especially the door locking of a furnace
US5813711A (en) * 1993-09-01 1998-09-29 Premark Feg L.L.C. Closure device for controlling a door lock in particular for the door lock of an oven
DE29507654U1 (en) 1995-05-09 1996-09-05 Ramsauer Dieter Safety device for the closure of a control cabinet door, a machine cover or the like.
EP0937400A1 (en) 1998-02-13 1999-08-25 eloma GmbH Grossküchentechnik Process for safe and pollution-free baking and cooking of food
DE19914568C2 (en) 1999-03-31 2003-10-09 Elektro Special Bedarf Link Gm Magnetically operated detector with reed contact

Also Published As

Publication number Publication date
EP1564498B1 (en) 2015-04-08
DE102004007235A1 (en) 2005-09-08
US7176416B2 (en) 2007-02-13
DE102004007235B4 (en) 2008-04-10
DE102004007235C5 (en) 2016-01-28
US20050194370A1 (en) 2005-09-08

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