EP0714002B1 - Electric built-in cooking hob - Google Patents

Electric built-in cooking hob Download PDF

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Publication number
EP0714002B1
EP0714002B1 EP95119268A EP95119268A EP0714002B1 EP 0714002 B1 EP0714002 B1 EP 0714002B1 EP 95119268 A EP95119268 A EP 95119268A EP 95119268 A EP95119268 A EP 95119268A EP 0714002 B1 EP0714002 B1 EP 0714002B1
Authority
EP
European Patent Office
Prior art keywords
built
power switching
switching elements
operating
cooking hob
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.)
Expired - Lifetime
Application number
EP95119268A
Other languages
German (de)
French (fr)
Other versions
EP0714002A2 (en
EP0714002A3 (en
Inventor
Gerhard Dipl.-Ing. Rothenberger (Fh)
Joachim Roth
Joachim Dr.-Ing. Damrath
Bruno Wörner
Helmut Bastian
Georg Von Blanquet
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 Vermoegensverwaltungs 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 Vermoegensverwaltungs GmbH filed Critical BSH Vermoegensverwaltungs GmbH
Publication of EP0714002A2 publication Critical patent/EP0714002A2/en
Publication of EP0714002A3 publication Critical patent/EP0714002A3/en
Application granted granted Critical
Publication of EP0714002B1 publication Critical patent/EP0714002B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/108—Mounting of hot plate on worktop
    • 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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/101—Tops, e.g. hot plates; Rings provisions for circulation of air
    • 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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/105—Constructive details concerning the regulation of the temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator

Definitions

  • the invention relates to an electric built-in hob with a hob that has at least one heating zone and an assigned control and display unit has, the control and display unit with an operating and display element for setting one electronic control unit is provided, which Control signals for controlling power switching elements an electrical heating element assigned to the heating zone generated, which in turn the supply voltage for the control electric heating elements of the heating zones, and wherein the hob has a metallic border having.
  • the controls can with suitable display elements for an operating and Display unit can be summarized (compare see CH-PS 402 210).
  • the display elements are used, for example to display the switch-on states of the heating zones, the temperature or other information.
  • Induction cookers such as in the DE 3741721 A1 described, already in use for a long time.
  • the heating energy is based on an induction coil thermally by electromagnetic means transfer cold directly to the cooking vessel.
  • the invention is based on the task, a electric built-in hob with at least one hob to train so that even at relatively low Installation depth favorable cooling conditions can be achieved.
  • This task is solved by a Built-in hob according to claim 1.
  • the relatively large-area metallic edging of the Hob plate serves as a heat sink and can be a significant one Proportion of through the electronic power switching elements dissipate generated heat.
  • the metallic edge of the hob plate advantageous with a cooling rail of the power switching elements are thermally conductive, wherein these power switching elements with high heat emission are expediently placed on the cooling rail.
  • the border directly with the brackets of the power switching elements for example the triacs.
  • Figure 1 shows one in a recess of a kitchen worktop 1 built-in built-in hob 2, which with a glass ceramic cooktop 4 with a Operating and display unit 5 is provided.
  • the hob plate 4 which is flat on its upper side 6 has four heating zones 7, each with one, not shown electric heating element below the ceramic Hob 4 on.
  • corner area 3 is in essentially rectangular hob plate 4 with a triangular Provide section 8.
  • a plate part 9 as a glass ceramic Panel cut corresponding to the shape of the cutout 8 on the top of the hob 4 with constant width B, see Figure 2, glued overlapping.
  • the plate part 9 is opposite the hob plate 4 aligned so that its side surface 10 with the side surface 12 of the hob 4 and its Side surface 11 is aligned with the side surface 13.
  • each heating zone 7 in the form of a sensor element 20 and a light-emitting diode 21 as a display element for displaying the sensor element 20 heating level set.
  • Transfer thereby Not shown leads electrical signals from the sensor elements 20 to one below the plate part 9 located electronic control unit 22nd This generates depending on the actuation of the sensor elements 20 control signals for controlling power switching elements 24, which in turn is the supply voltage supply for the heating elements of the heating zones 7.
  • the power switching elements are an exemplary embodiment 24 triacs.
  • the power switching elements 24 With their holder 25 placed on a cooling rail 30.
  • the essential Improvement of the cooling effect is achieved in that the cooling rail 30 with the metallic rim 31 the hob 4 in the form of aluminum rails communicates as a heat sink.
  • a flat cooktop with a plate cut-out raised plate part is the subject of Parent application EP-A-0 632 231.

Abstract

The operating and display unit is provided in the hob plate having at least one heating zone i.e. for an electric fitted cooking trough, including an operating and indicator element for setting an electronic control unit which generates control signals for controlling the power switching elements of an heating element assigned to the heating zone. The cooking hot plate (4) has a plate (9) portion partially overlapping a corner zone section of the hot plate used for accommodating the operating and display (indicating) unit and raised above this section, and used for accommodating the operating and indication elements (20, 21).

Description

Die Erfindung betrifft eine elektrische Einbaukochmulde mit einer Kochfeldplatte, die mindestens eine Heizzone sowie eine zugeordnete Bedienungs- und Anzeigeeinheit aufweist, wobei die Bedienungs- und Anzeigeeinheit mit einem Bedienungs- und Anzeigeelement zur Einstellung einer elektronischen Steuereinheit versehen ist, welche Steuersignale zur Steuerung von Leistungsschaltelementen eines der Heizzone zugeordneten elektrischen Heizelementes erzeugt, die wiederum die Versorgungsspannung für die elektrischen Heizelemente der Heizzonen steuern, und wobei die Kochfeldplatte eine metallische Randeinfassung aufweist.The invention relates to an electric built-in hob with a hob that has at least one heating zone and an assigned control and display unit has, the control and display unit with an operating and display element for setting one electronic control unit is provided, which Control signals for controlling power switching elements an electrical heating element assigned to the heating zone generated, which in turn the supply voltage for the control electric heating elements of the heating zones, and wherein the hob has a metallic border having.

Zur Steuerung der Heizleistung der Heizelemente in den einzelnen Heizzonen eines Kochfeldes sind Kochherde und Einbaukochmulden mit entsprechenden Bedienungselementen für den Benutzer ausgerüstet. Die Bedienungselemente können mit geeigneten Anzeigeelementen zu einer Bedienungs-und Anzeigeeinheit zusammengefaßt werden (vergleiche hierzu CH-PS 402 210). Die Anzeigeelemente dienen beispielsweise zur Anzeige der Einschaltzustände der Heizzonen, der Temperatur oder sonstige Informationen.To control the heating power of the heating elements in the individual heating zones of a hob are cooking stoves and Built-in cooktops with corresponding controls equipped for the user. The controls can with suitable display elements for an operating and Display unit can be summarized (compare see CH-PS 402 210). The display elements are used, for example to display the switch-on states of the heating zones, the temperature or other information.

Eine elektronische Steuerung der Heizelemente ist bei Induktions-Kochherden, wie beispielsweise in der DE 3741721 A1 beschrieben, bereits seit längerem gebräuchlich. Dabei wird die Heizenergie ausgehend von einer Induktionsspule auf elektromagnetischem Wege thermisch kalt unmittelbar auf das Kochgefäß übertragen. Die zur Steuerung des Stromflusses verwendeten Elemente müssen nur hinsichtlich der durch den Stromfluß in den Induktionsspulen erzeugten vergleichsweise geringen Verlustwärme gekühlt werden. Deshalb sind mit den elektronischen Steuerungsschaltungen für Induktions-Kochherde keine thermischen Probleme verbunden.Electronic control of the heating elements is included Induction cookers, such as in the DE 3741721 A1 described, already in use for a long time. The heating energy is based on an induction coil thermally by electromagnetic means transfer cold directly to the cooking vessel. The elements used to control current flow only in terms of current flow in the induction coils generated comparatively low heat loss be cooled. That is why with the electronic Control circuits for induction cookers no thermal problems associated.

Bei mit konventionellen Strahlungsheizkörpern arbeitenden Einbaukochmulden herrschen wesentlich schwierigere Bedingungen. Da die Bauhöhe von Küchenarbeitsplatten, welche zur Aufnahme von Einbaukochmulden bestimmt sind, durch Normung auf einen relativ geringen Wert von beispielsweise 40 mm beschränkt ist, wobei diese Einbautiefe aus einbautechnischen Gründen auch beim Einsetzen einer Einbaukochmulde nicht wesentlich überschritten werden soll, steht wegen der relativ geringen Bauhöhe nur ein geringer Einbauraum für hitzeempfindliche Elektronikbauteile zur Verfügung. Ein zusätzliches Problem bildet die Abführung der Verlustenergie der Leistungsschaltelektronik, die ebenfalls als Wärmeenergie freigesetzt wird, und dabei empfindliche Elektronikbauteile, insbesondere Sensorelemente und Leistungssteller, durch zu hohe Wärmeeinwirkung schädigen kann. Die Unterbringung und Kühlung dieser Bauteile war daher bei relativ flachen Kochmulden mit geringer Einbautiefe bisher nur schwer möglich.For those working with conventional radiant heaters Built-in hobs are much more difficult conditions. Because the height of kitchen worktops, which are intended to accommodate built-in cooktops, by Standardization to a relatively low value, for example 40 mm is limited, this installation depth from installation Reasons also when inserting a built-in hob should not be exceeded significantly, stands because of the relatively low height Installation space for heat-sensitive electronic components Available. Exhaustion is an additional problem the energy loss of the power switching electronics, the is also released as thermal energy, and thereby sensitive electronic components, especially sensor elements and power controller, due to excessive heat can damage. The placement and cooling of these components was therefore lower with relatively flat cooktops Installation depth has so far been difficult.

Die Erfindung geht von der Aufgabenstellung aus, eine elektrische Einbaukochmulde mit mindestens einer Kochfeldplatte so auszubilden, daß auch bei relativ geringer Einbautiefe günstige Kühlverhältnisse erreicht werden. Die Lösung dieser Aufgabenstellung erfolgt durch eine Einbaukochmulde gemäß Anspruch 1.The invention is based on the task, a electric built-in hob with at least one hob to train so that even at relatively low Installation depth favorable cooling conditions can be achieved. This task is solved by a Built-in hob according to claim 1.

Die relativ großflächige metallische Randeinfassung der Kochfeldplatte dient als Kühlkörper und kann einen erheblichen Anteil der durch die elektronischen Leistungsschaltelemente erzeugten Verlustwärme abführen.The relatively large-area metallic edging of the Hob plate serves as a heat sink and can be a significant one Proportion of through the electronic power switching elements dissipate generated heat.

Hierzu kann die metallische Randeinfassung der Kochfeldplatte vorteilhaft mit einer Kühlschiene der Leistungsschaltelemente wärmeleitend in Verbindung stehen, wobei diese Leistungsschaltelemente mit hoher Wärmeabgabe zweckmäßig auf die Kühlschiene aufgesetzt sind. In einer alternativen Ausbildung kann es ferner zweckmäßig sein, die Randeinfassung direkt mit den Halterungen der Leistungsschaltelemente, zum Beispiel der Triacs, zu verbinden.For this purpose, the metallic edge of the hob plate advantageous with a cooling rail of the power switching elements are thermally conductive, wherein these power switching elements with high heat emission are expediently placed on the cooling rail. In a alternative training it may also be useful the border directly with the brackets of the power switching elements, for example the triacs.

Die Erfindung soll nachfolgend anhand eines Ausführungsbeispieles näher erläutert werden; es zeigen:

Fig. 1
Eine isometrische Ansicht einer elektrischen Einbaukochmulde,
Fig. 2
eine Schnittdarstellung längs der Linie II-II in Fig. 1.
The invention will be explained in more detail below using an exemplary embodiment; show it:
Fig. 1
An isometric view of an electric built-in hob,
Fig. 2
a sectional view taken along the line II-II in Fig. 1st

Figur 1 zeigt eine in einer Ausnehmung einer Küchenarbeitsplatte 1 eingebaute elektrische Einbaukochmulde 2, die mit einer glaskeramischen Kochfeldplatte 4 mit einer Bedienungs- und Anzeigeeinheit 5 versehen ist.Figure 1 shows one in a recess of a kitchen worktop 1 built-in built-in hob 2, which with a glass ceramic cooktop 4 with a Operating and display unit 5 is provided.

Die auf ihrer Oberseite 6 ebenflächige Kochfeldplatte 4 weist vier Heizzonen 7 mit jeweils einem nicht dargestellten elektrischen Heizelement unterhalb der keramischen Kochfeldplatte 4 auf. Im Eckbereich 3 ist die im wesentlichen rechteckige Kochfeldplatte 4 mit einem dreieckförmigen Ausschnitt 8 versehen. Oberhalb des Ausschnitts 8 ist ein Plattenteil 9 als glaskeramischer Plattenzuschnitt korrespondierend zur Form des Ausschnitts 8 auf die Oberseite der Kochfeldplatte 4 mit konstanter Breite B, vergleiche Figur 2, überlappend aufgeklebt. Dabei ist der Plattenteil 9 gegenüber der Kochfeldplatte 4 so ausgerichtet, daß seine Seitenfläche 10 mit der Seitenfläche 12 der Kochfeldplatte 4 und seine Seitenfläche 11 mit der Seitenfläche 13 fluchtet.The hob plate 4 which is flat on its upper side 6 has four heating zones 7, each with one, not shown electric heating element below the ceramic Hob 4 on. In corner area 3 is in essentially rectangular hob plate 4 with a triangular Provide section 8. Above the neckline 8 is a plate part 9 as a glass ceramic Panel cut corresponding to the shape of the cutout 8 on the top of the hob 4 with constant width B, see Figure 2, glued overlapping. The plate part 9 is opposite the hob plate 4 aligned so that its side surface 10 with the side surface 12 of the hob 4 and its Side surface 11 is aligned with the side surface 13.

Wie aus den Figuren 1 und 2 ersichtlich, sind im Plattenteil 9 für jede Heizzone 7 jeweils ein Bedienungselement in Form eines Sensorelementes 20 und einer Leuchtdiode 21 als Anzeigeelement zur Anzeige der durch das Sensorelement 20 eingestellten Heizstufe angeordnet. Dabei übertragen nicht dargestellte Zuleitungen elektrische Signale von den Sensorelementen 20 zu einer unterhalb des Plattenteils 9 befindlichen elektronischen Steuereinheit 22. Diese erzeugt in Abhängigkeit von der Betätigung der Sensorelemente 20 Steuersignale zur Steuerung von Leistungsschaltelementen 24, die wiederum die Versorgungsspannung für die Heizelemente der Heizzonen 7 liefern. Im dargestellten Ausführungsbeispiel sind die Leistungsschaltelemente 24 Triacs.As can be seen from Figures 1 and 2, are in the plate part 9 one control element for each heating zone 7 in the form of a sensor element 20 and a light-emitting diode 21 as a display element for displaying the sensor element 20 heating level set. Transfer thereby Not shown leads electrical signals from the sensor elements 20 to one below the plate part 9 located electronic control unit 22nd This generates depending on the actuation of the sensor elements 20 control signals for controlling power switching elements 24, which in turn is the supply voltage supply for the heating elements of the heating zones 7. In the illustrated The power switching elements are an exemplary embodiment 24 triacs.

Zur Abführung der relativ großen Wärmemengen, die die Leistungsschaltelemente 24 als Verlustenergie freisetzen, sind die Leistungsschaltelemente 24 mit ihrer Halterung 25 auf eine Kühlschiene 30 aufgesetzt. Die wesentliche Verbesserung der Kühlwirkung wird dadurch erreicht, daß die Kühlschiene 30 mit der metallischen Randeinfassung 31 der Kochfeldplatte 4 in Form von Aluminiumprofilschienen als Kühlkörper in Verbindung steht. Alternativ können ferner die Halterungen der Leistungsschaltelemente 24 auch direkt mit der Randeinfassung 31 verbunden sein.To dissipate the relatively large amounts of heat that the Release power switching elements 24 as loss energy, are the power switching elements 24 with their holder 25 placed on a cooling rail 30. The essential Improvement of the cooling effect is achieved in that the cooling rail 30 with the metallic rim 31 the hob 4 in the form of aluminum rails communicates as a heat sink. Alternatively, you can the brackets of the power switching elements 24 also be connected directly to the border 31.

Eine ebenflächige Kochfeldplatte mit über einem Plattenausschnitt hochgesetztem Plattenteil ist Gegenstand der Stammanmeldung EP-A-0 632 231.A flat cooktop with a plate cut-out raised plate part is the subject of Parent application EP-A-0 632 231.

Claims (5)

  1. Built-in electric cooking hob (2) with a cooking field plate (4), which has at least one heating zone (7) as well as an associated operating and indicating unit (5), wherein the operating and indicating unit (5) is provided with an operating and indicating element (20, 21) for the setting of an electronic control unit (22), which produces control signals for control of power switching elements (24), which in turn control the supply voltage for the electric heating elements of the heating zones, and wherein the cooking field plate (4) has a metallic edge border (31), characterised in that the metallic edge border (31) is so constructed as a cooling body and thermally conductively connected with the power switching elements (24) that it dissipates a substantial part of the loss heat produced by the power switching elements.
  2. Built-in cooking hob according to claim 1, characterised in that the metallic edge border (31) is thermally conductively connected with a cooling rail (30).
  3. Built-in cooking hob according to claim 2, characterised in that power switching elements (24) are placed on the cooling rail (30).
  4. Built-in cooking hob according to claim 1, characterised in that the edge border (31) is directly thermally conductively connected with the mounts of the power switching elements (24).
  5. Built-in cooking hob according to claim 2, characterised in that the edge border (31) and the cooling rail (30) are aluminium profile rails.
EP95119268A 1993-06-09 1994-05-28 Electric built-in cooking hob Expired - Lifetime EP0714002B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4319170 1993-06-09
DE4319170A DE4319170C1 (en) 1993-06-09 1993-06-09 Control and display unit for a cool top platform
EP94108267A EP0632231B1 (en) 1993-06-09 1994-05-28 Device comprising an indicating and operating unit and a cooking hotplate

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP94108267.9 Division 1994-05-28
EP94108267A Division EP0632231B1 (en) 1993-06-09 1994-05-28 Device comprising an indicating and operating unit and a cooking hotplate

Publications (3)

Publication Number Publication Date
EP0714002A2 EP0714002A2 (en) 1996-05-29
EP0714002A3 EP0714002A3 (en) 1996-11-27
EP0714002B1 true EP0714002B1 (en) 2001-02-21

Family

ID=6490000

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95119268A Expired - Lifetime EP0714002B1 (en) 1993-06-09 1994-05-28 Electric built-in cooking hob
EP94108267A Expired - Lifetime EP0632231B1 (en) 1993-06-09 1994-05-28 Device comprising an indicating and operating unit and a cooking hotplate

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94108267A Expired - Lifetime EP0632231B1 (en) 1993-06-09 1994-05-28 Device comprising an indicating and operating unit and a cooking hotplate

Country Status (4)

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US (1) US5528015A (en)
EP (2) EP0714002B1 (en)
AT (2) ATE147150T1 (en)
DE (1) DE4319170C1 (en)

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EP0190646A1 (en) * 1985-02-01 1986-08-13 ITALORA S.p.A. Heat insulation device, suitable for control and operating units in cooking appliances
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Also Published As

Publication number Publication date
EP0714002A2 (en) 1996-05-29
US5528015A (en) 1996-06-18
EP0632231A1 (en) 1995-01-04
ATE199281T1 (en) 2001-03-15
ATE147150T1 (en) 1997-01-15
EP0632231B1 (en) 1997-01-02
EP0714002A3 (en) 1996-11-27
DE4319170C1 (en) 1994-09-01

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