EP0727618A2 - Four de cuisson et rÔtissage avec un ventilateur réglé par thermostat - Google Patents

Four de cuisson et rÔtissage avec un ventilateur réglé par thermostat Download PDF

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Publication number
EP0727618A2
EP0727618A2 EP96101437A EP96101437A EP0727618A2 EP 0727618 A2 EP0727618 A2 EP 0727618A2 EP 96101437 A EP96101437 A EP 96101437A EP 96101437 A EP96101437 A EP 96101437A EP 0727618 A2 EP0727618 A2 EP 0727618A2
Authority
EP
European Patent Office
Prior art keywords
oven
housing
muffle
motor fan
baking
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
EP96101437A
Other languages
German (de)
English (en)
Other versions
EP0727618A3 (fr
EP0727618B1 (fr
Inventor
Udo Dipl.-Ing. Reiff (Fh)
Walter Gramlich
Rudolf Begero
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
Bosch Siemens Hausgerate 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 Bosch Siemens Hausgerate GmbH filed Critical Bosch Siemens Hausgerate GmbH
Publication of EP0727618A2 publication Critical patent/EP0727618A2/fr
Publication of EP0727618A3 publication Critical patent/EP0727618A3/fr
Application granted granted Critical
Publication of EP0727618B1 publication Critical patent/EP0727618B1/fr
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
    • F24C15/008—Illumination for oven cavities
    • 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
    • F24C15/006—Arrangements for circulation of cooling air

Definitions

  • the present invention relates to a baking / roasting oven with oven heating and with at least one lighting device for illuminating the interior of the oven muffle and with a thermostatically controlled motor fan for cooling the housing.
  • thermocouples which measure the temperature at points deemed expedient in the problematic areas to be cooled.
  • thermocouple of the thermostat control unit for the motor fan is contacted with the wall of a housing part of the furnace muffle lighting device protruding outwards from the furnace muffle.
  • a thermostat control for the motor fan for cooling the housing is characterized in that the mounting and coupling of the thermocouple of this thermostat control unit to the housing wall of the muffle interior lighting of the lighting device serving for the muffle interior lighting is particularly simple and without special measures is efficient.
  • the thermal sensor only needs, e.g. using a fastening tab to which, for safety reasons, cooling reasons and heat load reasons, metallic housing walls of the lighting device are connected from the outside.
  • the temperature of the muffle wall is securely brought up to the thermal sensor via the housing wall of the lighting device and, in addition, the thermal power of the lighting device is also subjected to thermal energy.
  • the thermal sensor responds shortly after the oven lighting is switched on and the motor fan for the housing cooling is activated via the downstream thermostat control unit and maintains this mode of operation beyond the heating phases at least until the oven lighting is switched off.
  • the arrangement according to the invention of the thermal sensor means that it is most likely to be at the warmest point of the oven muffle, so that the thernostat-controlled fan motor with a very high safety guarantee is sufficiently durable cools. A separate time control of the motor fan or special measures for run-on control can therefore be omitted.
  • the temperature sensor is a temperature-dependent, strongly variable resistor with a positive temperature-coefficient behavior.
  • the resistance value of the temperature sensor resulting from the temperature on the wall of the furnace lighting is evaluated when the resistance of the motor fan is reached and the motor fan is switched off when the temperature falls below this threshold, since it can then be assumed that no problematic temperature is guaranteed is present in the area to be cooled, since heat supply from warmer areas is no longer to be expected.
  • a built-in oven is shown in a schematic view, the baking / roasting space 3 formed from a muffle 2 is closed by an appliance door 4.
  • the baking / roasting space 2 is heated by a radiator 5.
  • the built-in oven 1 is provided with a motor fan 6, which is arranged at a suitable point in the oven housing.
  • the fan motor 6 is controlled by thermostat electronics 7, the control signal being supplied by a thermal sensor 8 which is flanged to the housing 9 of an oven light 10.
  • this housing 9, which, for thermal reasons in particular, usually consists of metal, is in thermal connection with the muffle wall 11 of the baking / roasting space 2 and is also exposed to the temperature prevailing inside the baking / roasting space 2.
  • thermocouple 8 which is designed as a strongly variable resistor with a positive temperature characteristic (PTC)
  • PTC positive temperature characteristic
  • the thermostat control circuit 7 When a predetermined temperature in the area of the housing 9 of the lighting device 10 is exceeded, the thermocouple 8, which is designed as a strongly variable resistor with a positive temperature characteristic (PTC), outputs an electrically evaluable value to the thermostat control circuit 7 so that the motor fan 6 is started sets, which ensures sufficient cooling in the device housing.
  • the heat source that heats the device housing is the baking / roasting space 2 and, as a transition point, its 11th place. Since this heat source is detected almost unadulterated via the housing 9 of the lighting device 10 and additionally the heat of the lighting device 10 itself is detected, it is ensured that the motor fan 6 is guaranteed to be in operation as long as increased heat can be expected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Control Of Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
EP96101437A 1995-02-16 1996-02-01 Four de cuisson et rôtissage avec un ventilateur réglé par thermostat Expired - Lifetime EP0727618B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502570U DE29502570U1 (de) 1995-02-16 1995-02-16 Back-/Bratofen mit einem thermostatgesteuerten Motorlüfter
DE29502570U 1995-02-16

Publications (3)

Publication Number Publication Date
EP0727618A2 true EP0727618A2 (fr) 1996-08-21
EP0727618A3 EP0727618A3 (fr) 1997-05-14
EP0727618B1 EP0727618B1 (fr) 2000-07-19

Family

ID=8004007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101437A Expired - Lifetime EP0727618B1 (fr) 1995-02-16 1996-02-01 Four de cuisson et rôtissage avec un ventilateur réglé par thermostat

Country Status (3)

Country Link
EP (1) EP0727618B1 (fr)
DE (2) DE29502570U1 (fr)
ES (1) ES2150026T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779043A1 (fr) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Appareil de chauffage pour cire à épiler
CN110881856A (zh) * 2019-11-21 2020-03-17 华帝股份有限公司 一种高温烹饪装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19906990A1 (de) * 1999-02-19 2000-08-24 Bsh Bosch Siemens Hausgeraete Dampfgargerät, insbesondere Dampfbackofen
DE102006005293A1 (de) * 2006-02-06 2007-08-09 BSH Bosch und Siemens Hausgeräte GmbH Backofen
DE102006026909A1 (de) * 2006-06-09 2007-12-13 BSH Bosch und Siemens Hausgeräte GmbH Sensorvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646315A (en) * 1967-12-20 1972-02-29 Texas Instruments Inc Self-regulated heating device
JPS57170494A (en) * 1981-04-13 1982-10-20 Matsushita Electric Industrial Co Ltd Heater
JPS63106096U (fr) * 1986-12-27 1988-07-08
CH678913A5 (en) * 1989-05-31 1991-11-29 Electrolux Ag Oven for forced cooling - with heat transferred to air which flows along channels in oven walls and door
DE19505738A1 (de) * 1995-02-20 1996-08-22 Bosch Siemens Hausgeraete Back-/Bratofen mit einer thermostatsteuerbaren Ofenheizung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779043A1 (fr) * 1995-12-14 1997-06-18 Magic Dreams Cosmetica Infantil, S.L. Appareil de chauffage pour cire à épiler
CN110881856A (zh) * 2019-11-21 2020-03-17 华帝股份有限公司 一种高温烹饪装置

Also Published As

Publication number Publication date
DE59605612D1 (de) 2000-08-24
DE29502570U1 (de) 1995-04-06
EP0727618A3 (fr) 1997-05-14
ES2150026T3 (es) 2000-11-16
EP0727618B1 (fr) 2000-07-19

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