EP1325669A1 - Mikrowellengerät - Google Patents
MikrowellengerätInfo
- Publication number
- EP1325669A1 EP1325669A1 EP01985789A EP01985789A EP1325669A1 EP 1325669 A1 EP1325669 A1 EP 1325669A1 EP 01985789 A EP01985789 A EP 01985789A EP 01985789 A EP01985789 A EP 01985789A EP 1325669 A1 EP1325669 A1 EP 1325669A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- microwave
- radiation source
- source
- alternative
- control unit
- 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.)
- Withdrawn
Links
- 230000005855 radiation Effects 0.000 claims abstract description 57
- 238000010411 cooking Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 description 11
- 150000002367 halogens Chemical class 0.000 description 11
- 239000011521 glass Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- 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
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
Definitions
- the invention is based on a microwave device according to the preamble of claim 1.
- a generic microwave device is known from EP 1005 255 A1.
- the microwave oven has a cooking space arranged in a housing, a microwave source and a halogen lamp.
- the halogen lamp can be used as a heating element.
- a perforated grid made of an electrically conductive material is arranged in front of the halogen lamp.
- the perforated grid is formed by a sheet metal plate into which recesses are made.
- the object of the invention is to further develop a generic microwave device, in particular with regard to its efficiency.
- the object is achieved by the features of patent claim 1, while advantageous refinements and developments of the invention can be found in the subclaims.
- the invention is based on a microwave device with a cooking space arranged in a housing, with at least one microwave source and with at least one further radiation source that is alternative to the microwave source and can be protected from microwaves by a protective device.
- the protective device have a control unit, via which a protective state of the alternative radiation source can be established.
- a protective state of the alternative radiation source can be realized in a space-saving manner with a few additional components and overall good efficiency can be achieved, namely by preventing absorption of radiation from the radiation source by a shielding unit during predominant operation with the alternative radiation source.
- This can be achieved particularly advantageously by the control unit ensuring a switched-off state of the alternative radiation source when the microwave source is in operation and a switched-off state of the microwave source when the alternative radiation source is in operation, so that time-shifted operation is always ensured.
- control unit is advantageously made in one piece with an already existing control unit, advantageous protection of the alternative radiation source can be achieved without additional components and the associated installation space, installation effort and costs. Instead of completely switching off one of the two sources, it is also conceivable, in principle, that the control unit sets the other source to a very low power level when one source is operating predominantly.
- the control unit operates the sources alternately in a combined operation of the microwave source and the alternative radiation source. If the individual operating times of the alternative radiation source and / or the microwave source can be set as a function of a food to be cooked in the cooking space, the cooking process can be adapted to the corresponding food to be cooked and a particularly advantageous cooking result can be achieved.
- a shielding unit for example a perforated grille
- a shielding unit can be moved via the control unit with a drive unit in front of the alternative radiation source, and / or that the radiation source can be moved into a protected position with a drive unit via the control unit, thereby providing a particularly reliable protection of the alternative ones Radiation source can be achieved.
- the time-shifted operation, the movement of a shielding unit in front of the alternative radiation source and the movement of the alternative radiation source into a protected position can be initiated individually or in different combinations by the control device.
- the solution according to the invention can be used with various alternative radiation sources which appear to be useful to the person skilled in the art, for example one emit pure heat radiation etc.
- the solution according to the invention is used particularly advantageously in the case of radiation sources formed by light sources which have a glow element.
- light sources with a glow element should be protected or shielded from microwaves, to avoid damage to the glow element and to at least largely avoid microwave leakage via the glow element and its supply lines.
- the light source can predominantly emit visible light for illuminating the cooking space or can advantageously be designed to be usable as a heating element, specifically by emitting light in the infrared range, as is the case, for example, with halogen lamps. With the solution according to the invention, an advantageous heating efficiency of the light source can be achieved.
- the radiation source be driven in motion during its operation.
- An existing drive unit can advantageously be used either to move a shielding unit and / or in particular to move the radiation source into its protected position.
- the microwave device has a microwave source 12 formed by a magnetron or a time-of-flight tube, from which microwaves 14 can be conducted into the cooking space 11 via a waveguide 19 for heating a food 18.
- the microwave device has a radiation source 13 formed by a halogen lamp and alternative to the microwave source 12. The radiation source 13 is above arranged a glass plate 20 forming the ceiling of the cooking space 11 and extends across the entire width of the cooking space 11.
- the halogen lamp forming the radiation source 13 has an incandescent filament through which visible light for illuminating the cooking space 11 and invisible light in the infrared range for heating the food 18 can be generated.
- the halogen lamp is surrounded on the side facing away from the cooking chamber 11 by a bowl-shaped reflector 21.
- the latter is moved forwards and backwards via a drive unit, not shown, above the cooking space 11.
- the radiation source 13 can be protected from microwaves 14 by a protective device which, according to the invention, has a control unit 15 which is connected to the microwave source 12 and the alternative radiation source 13 via control lines 25, 26 and via which a protective state of the radiation source 13 can be established.
- the control unit 15 moves the radiation source 13 with its drive unit into a protected position 17 into a room 23 next to the cooking chamber 11 and switches it off.
- the radiation source 13 passes over a perforated grid which is initially aligned parallel to the glass plate 20 and is pivotably mounted and forms a shielding unit 16.
- a driving element (not shown in more detail) attached to the radiation source 13 snaps into the perforated grid. Due to the continued movement of the radiation source 13, the perforated grating is pivoted into a vertical position, so that the perforated grating closes the space 23 and shields the radiation source 13 from microwaves 14.
- the microwave source 12 is switched off via the control unit 15.
- the radiation source 13 is then moved from its position 17 in the room 23 over the cooking chamber 11 and thereby pivots the perforated grid into its position parallel to the glass plate 20.
- the radiation source 13 can radiate freely into the cooking chamber 11. Light fluctuations and losses due to absorption of rays 24 from the radiation source 13 are avoided, and a high degree of efficiency is achieved.
- the control unit 15 operates the microwave source 12 and the radiation source 13 with a time delay.
- the microwave source 12 and the radiation source 13 are operated alternately via the control unit 15, the individual operating times of the radiation source 13 and the microwave source 12 depending on a food in the cooking space 11 with one not shown in more detail
- Operating unit can be set by an operator via the control unit 15.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10048444 | 2000-09-29 | ||
| DE10048444 | 2000-09-29 | ||
| PCT/EP2001/010958 WO2002028144A1 (de) | 2000-09-29 | 2001-09-21 | Mikrowellengerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1325669A1 true EP1325669A1 (de) | 2003-07-09 |
Family
ID=7658190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01985789A Withdrawn EP1325669A1 (de) | 2000-09-29 | 2001-09-21 | Mikrowellengerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20030178418A1 (de) |
| EP (1) | EP1325669A1 (de) |
| AU (1) | AU2002221618A1 (de) |
| WO (1) | WO2002028144A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007058689B4 (de) * | 2007-12-06 | 2022-11-17 | BSH Hausgeräte GmbH | Hausgerät zur Zubereitung von Lebensmitteln |
| DE102011116243B4 (de) * | 2011-10-17 | 2014-04-17 | Centrotherm Photovoltaics Ag | Vorrichtung zum Bestimmen der Temperatur eines Substrats |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3949184A (en) * | 1975-05-02 | 1976-04-06 | Raytheon Company | Folding microwave searing and browning means |
| US4188520A (en) * | 1978-05-31 | 1980-02-12 | General Electric Company | Effective concurrent microwave heating and electrical resistance heating in a countertop microwave oven |
| JPS6071825A (ja) * | 1983-09-28 | 1985-04-23 | Sharp Corp | 高周波加熱装置のヒ−タ電動装置 |
| JP3649591B2 (ja) * | 1998-06-16 | 2005-05-18 | シャープ株式会社 | 調理器 |
| KR100288933B1 (ko) * | 1998-11-23 | 2001-05-02 | 구자홍 | 광파히터를 사용하는 전자레인지의 히터커버 |
-
2001
- 2001-09-21 WO PCT/EP2001/010958 patent/WO2002028144A1/de not_active Ceased
- 2001-09-21 EP EP01985789A patent/EP1325669A1/de not_active Withdrawn
- 2001-09-21 AU AU2002221618A patent/AU2002221618A1/en not_active Abandoned
-
2003
- 2003-03-31 US US10/403,913 patent/US20030178418A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0228144A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002028144A1 (de) | 2002-04-04 |
| AU2002221618A1 (en) | 2002-04-08 |
| US20030178418A1 (en) | 2003-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20030429 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: THALER, MARTIN Inventor name: SCHULTE, MARTIN Inventor name: LINTNER, KURT Inventor name: HORN, KATRIN Inventor name: HEROLD, BERNHARD |
|
| 17Q | First examination report despatched |
Effective date: 20030919 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20080122 |