EP0454969A2 - Dispositif d'éclairage pour un four - Google Patents

Dispositif d'éclairage pour un four Download PDF

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Publication number
EP0454969A2
EP0454969A2 EP19910103303 EP91103303A EP0454969A2 EP 0454969 A2 EP0454969 A2 EP 0454969A2 EP 19910103303 EP19910103303 EP 19910103303 EP 91103303 A EP91103303 A EP 91103303A EP 0454969 A2 EP0454969 A2 EP 0454969A2
Authority
EP
European Patent Office
Prior art keywords
lamp
lighting device
sleeve
lamp housing
opening
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
EP19910103303
Other languages
German (de)
English (en)
Other versions
EP0454969A3 (en
EP0454969B1 (fr
Inventor
Johann Klement
Josef Gerl
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 EP0454969A2 publication Critical patent/EP0454969A2/fr
Publication of EP0454969A3 publication Critical patent/EP0454969A3/de
Application granted granted Critical
Publication of EP0454969B1 publication Critical patent/EP0454969B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/65—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air the gas flowing in a closed circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • 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
    • 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
    • H05B6/6444—Aspects relating to lighting devices in the microwave cavity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/307—Lighting for domestic or personal use for ovens

Definitions

  • the invention relates to a lighting device for a stove according to the preamble of patent claim 1.
  • a lamp holder with lamps is arranged vertically behind an opening in the appliance wall, the lamp axis running parallel to the appliance wall.
  • the aforementioned opening is closed by a transparent cover made of glass or plastic.
  • a lamp holder with a lamp is again arranged behind an opening in the cooking space wall, the axis of which is perpendicular to the cooking space wall.
  • the opening is in turn closed by a glass cover.
  • the lamp and lamp holder are largely surrounded by a metallic sleeve, this metallic sleeve having a perforation for ventilation of the lamp area and for the exit of light rays through the perforation in the direction a wall part of the lamp housing serving as a reflector.
  • this construction too, the lamp would be exposed to extreme heat radiation during high or high temperature operation.
  • the invention has for its object to obtain effective protection of the lamp from harmful influences emanating from the oven cavity with structurally simple and spatially inexpensive means.
  • the sleeve Due to the sleeve made of transparent material and its arrangement in relation to the opening in the cooking space wall, an effective thermal barrier is obtained for the heat radiation emanating from the cooking space, at which the heat radiation is partly reflected or absorbed and is diverted to the metallic lamp housing, which The lamp housing itself is located in a relatively cool area outside the oven.
  • the sleeve can be designed as a tubular element that is open on both sides or as an element that is only open on one side, it being possible in the latter case to even dispense with a cover closing the opening in the cooking space wall during normal operation of the oven. In any case, it is advantageous if the sleeve at least largely covers the lamp and lamp holder.
  • a particular advantage of the lighting device according to the invention is that it can be used universally for different operating modes. It can be used for maximum temperature operation, e.g. Self-cleaning operation by pyrolysis as well as for microwave operation, provided that the sleeve is provided with a lattice-like, metallic and microwave-tight shielding, which can be done in a simple manner by a metallic shielding grid inserted in the sleeve or by a metallic printing. In any case, the lamp and lamp holder are effectively protected against harmful influences from the cooking space. Last but not least, the special geometric arrangement of the lamp holder and lamp results in a very flat design.
  • Fig. 1 denotes a vertical cooking chamber wall of an oven, not shown, into which, for example, a circular opening 2 is incorporated.
  • a metallic lamp housing 4 which tightly encloses the opening in the cooking space wall and forms a housing space 5, is attached to an outwardly drawn annular flange 3 of the cooking space wall 1, for example by screws or the like.
  • This lamp housing 4 has resilient holding elements 6 for holding onto the opening 2, made of glass or glass-like material, lens-like cover 7, the ring flange 8 of which snaps onto the holding elements 6.
  • a lamp socket 10 Attached to the lower base part 9 of the lamp housing is a lamp socket 10 of conventional design, into which a lamp 11 is inserted or screwed, the lamp axis a running parallel to the plane of the cooking space wall 1 at a distance.
  • Lamp holder 10 and lamp 11 are at least largely surrounded by a tube-like sleeve 12 made of glass or glass-like material, for example plastic, which is open at both ends in the first variant and which largely allows light rays to pass through unimpeded.
  • This sleeve is shown in detail in Fig. 2.
  • a lattice-like, metallic shield 13 is incorporated into the glass material in the form of lattice-like metallic wires, the ends of which protrude beyond the lower sleeve boundary 14.
  • the entire sleeve 12 is attached to the metallic lamp holder 4, namely in that one or more spring washers 15 are pressed onto these wire ends with elastic deformation, which spring washers are in contact with the wire ends and clamp or claw the bottom part of the lamp housing 4.
  • a continuous, metallic and electrically conductive connection is created between the metallic shield and the metallic lamp housing 4, which in turn is in direct metallic contact, with the cooking chamber wall, which prevents microwaves from entering the inner region of the sleeve 12.
  • a shield 13 ' can also be produced by vapor-depositing a suitable metal layer in a lattice structure on the outer surface of the sleeve 12'.
  • the passage of light through the sleeve 12, 12 ' is not noticeably impeded.
  • the luminous efficiency on the one hand and the thermal insulating ability of the sleeve 12 can be further improved in that the shield has a surface which reflects heat rays well, for example has a silvery surface which strongly reflects heat and light rays.
  • Fig. 1 shows that the lamp holder 4 is provided in the lower region and in the upper region with ventilation slots 16, also on the bottom part 9.
  • the sleeve 12 or 12 'on the bottom part has ventilation slots 17, as shown by ventilation arrows, can through these ventilation slots 16, 17 relatively cool air flow into the housing space 5 of the lamp housing 4 and flow around the outside of the sleeve and flow through inside and exit again at the top.
  • the lamp base 10 and lamp 11 are flowed around in a very intensive manner, so that the operating heat is dissipated during lamp operation.
  • Fig. 1 it is indicated by dash-dotted lines that the sleeve 12 can also be closed at the top by an extension 18, with the exception of a ventilation opening 19 through which the aforementioned cooling air can flow upwards. In this way, an outer cover 7 can be dispensed with during normal operation of the cooker.
  • the inner surface of the lamp housing 4 can be provided with a surface that reflects light rays well and serves as a reflector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
EP91103303A 1990-05-04 1991-03-05 Dispositif d'éclairage pour un four Expired - Lifetime EP0454969B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4014360A DE4014360A1 (de) 1990-05-04 1990-05-04 Beleuchtungseinrichtung fuer einen herd
DE4014360 1990-05-04

Publications (3)

Publication Number Publication Date
EP0454969A2 true EP0454969A2 (fr) 1991-11-06
EP0454969A3 EP0454969A3 (en) 1992-04-01
EP0454969B1 EP0454969B1 (fr) 1995-05-24

Family

ID=6405721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103303A Expired - Lifetime EP0454969B1 (fr) 1990-05-04 1991-03-05 Dispositif d'éclairage pour un four

Country Status (7)

Country Link
EP (1) EP0454969B1 (fr)
JP (1) JPH04227420A (fr)
KR (1) KR910020366A (fr)
AT (1) ATE123128T1 (fr)
DE (2) DE4014360A1 (fr)
DK (1) DK0454969T3 (fr)
ES (1) ES2074596T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748002A1 (de) * 1997-10-30 1999-05-06 Bosch Siemens Hausgeraete Herd mit gekühlter Beleuchtungseinrichtung
EP1574787A3 (fr) * 2003-12-09 2012-05-16 Samsung Electronics Co., Ltd. Ensemble de lampe et appareil de cuisson le comprenant
US8459816B2 (en) 2005-09-16 2013-06-11 Bsh Bosch Und Siemens Hausgeraete Gmbh Lighting device for ovens, and oven
EP2251588A3 (fr) * 2009-04-30 2014-07-09 BSH Bosch und Siemens Hausgeräte GmbH Lampe pour appareil ménager et appareil ménager, notamment pour la préparation d'aliments, doté d'une lampe
EP3492801A4 (fr) * 2016-07-29 2020-01-22 Shenzhen H&T Intelligent Control Co., Ltd. Lampe à del, four et four à micro-ondes

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304522A1 (de) * 1993-02-15 1994-08-18 Bosch Siemens Hausgeraete Leuchte für Mikrowellenöfen
DE4304523A1 (de) * 1993-02-15 1994-08-18 Bosch Siemens Hausgeraete Leuchte für Backöfen
DE19833774A1 (de) * 1998-07-27 2000-02-03 Bsh Bosch Siemens Hausgeraete Gargerät mit gekühlter Leuchte
DE10122878B4 (de) * 2001-05-11 2015-03-26 BSH Bosch und Siemens Hausgeräte GmbH Beleuchtungseinrichtung für Backöfen
DE20202558U1 (de) * 2002-02-19 2003-07-03 Zumtobel Staff GmbH & Co. KG, 32657 Lemgo Konvektionsreflektor
DE102012211202A1 (de) * 2012-06-28 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Geschlossene Garraumleuchte
JP6172247B2 (ja) * 2015-12-01 2017-08-02 株式会社島津製作所 ガスクロマトグラフ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421640A (en) * 1977-07-20 1979-02-19 Matsushita Electric Ind Co Ltd High frequency heater
JPS5623606U (fr) * 1979-07-30 1981-03-03
DE3732690A1 (de) * 1987-09-29 1989-04-13 Licentia Gmbh Beleuchtungseinrichtung zum ausleuchten des garraumes eines mikrowellenherdes
DE8713264U1 (de) * 1987-10-02 1987-12-03 Hurst & Schröder GmbH, 5980 Werdohl Herdleuchte für einen Mikrowellenherd

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748002A1 (de) * 1997-10-30 1999-05-06 Bosch Siemens Hausgeraete Herd mit gekühlter Beleuchtungseinrichtung
EP0913646A1 (fr) 1997-10-30 1999-05-06 BSH Bosch und Siemens Hausgeräte GmbH Cuisinière à dispositif d'éclairage refroidi
EP1574787A3 (fr) * 2003-12-09 2012-05-16 Samsung Electronics Co., Ltd. Ensemble de lampe et appareil de cuisson le comprenant
US8459816B2 (en) 2005-09-16 2013-06-11 Bsh Bosch Und Siemens Hausgeraete Gmbh Lighting device for ovens, and oven
EP2251588A3 (fr) * 2009-04-30 2014-07-09 BSH Bosch und Siemens Hausgeräte GmbH Lampe pour appareil ménager et appareil ménager, notamment pour la préparation d'aliments, doté d'une lampe
EP3492801A4 (fr) * 2016-07-29 2020-01-22 Shenzhen H&T Intelligent Control Co., Ltd. Lampe à del, four et four à micro-ondes

Also Published As

Publication number Publication date
ES2074596T3 (es) 1995-09-16
JPH04227420A (ja) 1992-08-17
EP0454969A3 (en) 1992-04-01
KR910020366A (ko) 1991-12-20
DK0454969T3 (da) 1995-10-16
DE59105555D1 (de) 1995-06-29
DE4014360A1 (de) 1991-11-07
EP0454969B1 (fr) 1995-05-24
ATE123128T1 (de) 1995-06-15

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