EP1416773A2 - Tür mit Sichtfenster für Mikrowellengeräte - Google Patents
Tür mit Sichtfenster für Mikrowellengeräte Download PDFInfo
- Publication number
- EP1416773A2 EP1416773A2 EP03023145A EP03023145A EP1416773A2 EP 1416773 A2 EP1416773 A2 EP 1416773A2 EP 03023145 A EP03023145 A EP 03023145A EP 03023145 A EP03023145 A EP 03023145A EP 1416773 A2 EP1416773 A2 EP 1416773A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- metallic
- door
- metal threads
- door according
- fabric
- 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- Withdrawn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
Images
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
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
- H05B6/763—Microwave radiation seals for doors
Definitions
- the invention relates to a door with a window for Microwave devices according to the preamble of claim 1.
- Doors for microwave ovens typically have a viewing window, to better observe the cooking process in the microwave oven can.
- These viewing windows consist of two in a known manner a metallic frame spaced glass panes made of high temperature resistant glass. Since this glass is not in the irrelevant dimensions is also transparent for microwaves Viewing window area within the metallic frame one Shielding against microwave radiation is necessary.
- This shield consists of a known device perforated, blackened metallic plate that is in the space between two glass panes is firmly attached and in conductive contact with the metallic frame.
- This relatively massive perforated Metallic plate shields the microwave radiation in the required Dimensions, however, it significantly affects the visual insight into the inside of the microwave oven.
- the invention is based on the object, starting from the designated door with a window for microwave ovens, with a metallic door frame in which two panes of glass are spaced are held, and with one in the space between the glass panes arranged metallic shielding for microwaves, which in the there is conductive contact with the metallic door frame with regard to the metallic shield so that on the one hand the required shielding against microwave radiation is reached, i.e. the legally prescribed limit values for the radiation values of the microwave oven are not exceeded, and on the other hand the visual look inside the Microwave device is practically not affected.
- these tasks are solved in that the metallic shield from a fabric of thin Metal threads exist that are at a predetermined small distance from each other are interwoven.
- the thin metal threads in the sense of the invention are metal threads whose Thickness is in the range of 0.02 mm to 0.1 mm, the thickness is preferably about 0.06 mm.
- the specified small distance between the individual metal threads is preferably in the range of 0.09 mm to 0.5 mm and is in preferred dimensions about 0.12 mm.
- the tissue has a so-called Plain weave with the warp thread alternately over and is under the weft. But also other ties of the threads, such as the twill weave, are of course conceivable.
- the metal threads are preferably made of steel.
- the fabric is as known Case the perforated plate, blackened.
- the door shown in the drawing with a window for one Microwave device has a metallic frame 1, in which two Glass panes 2, 3 are held spaced.
- the inside of the device facing glass pane 3 is preferably a brand glass Durax®, meanwhile the glass pane facing the surroundings 2 consists of glass from the Borofloat® brand or the Durax® brand.
- the Glass panes 2, 3 are preferred in the metallic frame 1 glued by means of an adhesive 4.
- a metallic shield 5 made of a thin fabric Metal threads, preferably steel threads, provided in the predetermined small distance are interwoven, preferably in the so-called plain weave, in which the warp thread in each case alternately above and below the weft threads.
- This tissue 5 is on the inside of the outer glass pane 2 facing the Glass pane 3 applied, and is conductive to the frame 1st connected.
- the metallic fabric 5 used for shielding is a very fine tissue, as is also the case with oil filters for Motor vehicles is used.
- the thickness of the metal threads is in Range from 0.02 mm to 0.1 mm, preferably around 0.06 mm.
- the mutual distance between the metal threads is in the range of 0.09 mm to 0.5 mm, preferably around 0.12 mm.
- the fabric 5 used according to the invention is also blackened, either by blackening the metal threads to be woven or the tissue is subsequently blackened.
- the invention can basically be used with all devices, in which a viewing window and a shield against electromagnetic radiation is required.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
- Fig. 1
- in einer Art Explosionsdarstellung den Aufbau der erfindungsgemäßen Tür mit Sichtfenster für ein Mikrowellengerät, und
- Fig. 2
- einen horizontalen Längsschnitt durch die Tür nach Fig. 1.
Claims (8)
- Tür mit Sichtfenster für Mikrowellengeräte, mit einem metallischen Türrahmen (1), in dem zwei Glasscheiben (2,3) beabstandet gehaltert sind, und mit einer im Raum zwischen den Glasscheiben (2,3) angeordneten metallischen Abschirmung für Mikrowellen, die im leitenden Kontakt mit dem metallischen Türrahmen (1) steht, dadurch gekennzeichnet, dass die metallische Abschirmung aus einem Gewebe (5) von dünnen Metallfäden besteht, die im vorgegebenen kleinen Abstand zueinander verwebt sind.
- Tür nach Anspruch 1, dadurch gekennzeichnet, dass die Dicke der Metallfäden im Bereich von 0,02 mm bis 0,1 mm liegt.
- Tür nach Anspruch 2, dadurch gekennzeichnet, dass die Dicke der Metallfäden zirka 0,06 mm beträgt.
- Tür nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der gegenseitige Abstand der Metallfäden im Bereich von 0,09 mm bis 0,5 mm liegt.
- Tür nach Anspruch 4, dadurch gekennzeichnet, dass der gegenseitige Abstand der Metallfäden zirka 0,12 mm beträgt.
- Tür nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Gewebe eine Leinwandbindung aufweist.
- Tür nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Gewebe schwarz ist.
- Tür nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Metallfäden Stahlfäden sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10250298 | 2002-10-29 | ||
| DE10250298A DE10250298A1 (de) | 2002-10-29 | 2002-10-29 | Tür mit Sichtfenster für Mikrowellengeräte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1416773A2 true EP1416773A2 (de) | 2004-05-06 |
Family
ID=32087263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03023145A Withdrawn EP1416773A2 (de) | 2002-10-29 | 2003-10-10 | Tür mit Sichtfenster für Mikrowellengeräte |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6828534B2 (de) |
| EP (1) | EP1416773A2 (de) |
| CN (1) | CN1499136A (de) |
| CA (1) | CA2447366A1 (de) |
| DE (1) | DE10250298A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008010620U1 (de) | 2008-08-11 | 2008-10-23 | Deutsche Mechatronics Gmbh | Türanordnung für einen Mikrowellenofen und zugehörige Scheibe |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2020827B1 (de) * | 2007-07-03 | 2013-10-23 | Whirlpool Corporation | Abschirmungssystem für Mikrowellenöfen und Mikrowellenofen damit |
| WO2011063194A1 (en) | 2009-11-19 | 2011-05-26 | Parker Hannifin Corporation | Conductive plastic overmold on shielded plastic window |
| CN101881473B (zh) * | 2010-07-15 | 2012-08-29 | 广东格兰仕微波炉电器制造有限公司 | 微波炉门结构 |
| EP2731404B1 (de) * | 2012-11-12 | 2020-04-08 | Electrolux Home Products Corporation N.V. | Tür eines Mikrowellenherds oder eines Multifunktionsofens mit Mikrowellenheizfunktion |
| KR102527643B1 (ko) | 2016-08-22 | 2023-05-03 | 삼성전자주식회사 | 조리기기, 조리기기용 도어 및 조리기기의 도어의 제조방법 |
| CN116412421A (zh) * | 2021-12-31 | 2023-07-11 | 广东美的厨房电器制造有限公司 | 微波设备 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2958754A (en) * | 1958-12-15 | 1960-11-01 | Gen Electric | Electronic ovens |
| US3305623A (en) * | 1964-10-19 | 1967-02-21 | Metex Corp | Shielded window construction |
| CA1038045A (en) * | 1974-12-09 | 1978-09-05 | Junzo Tanaka | Transparent shielded door screen for microwave oven |
| US4678699A (en) * | 1982-10-25 | 1987-07-07 | Allied Corporation | Stampable polymeric composite containing an EMI/RFI shielding layer |
| DE3545790C2 (de) * | 1984-12-24 | 2001-04-12 | Fukuvi Chem Ind Co | Verfahren zum Herstellen eines transparenten Abschirmmaterials gegen elektromagnetische Wellen. |
| US5012041A (en) * | 1989-06-22 | 1991-04-30 | The Curran Company | Screened window for shielded enclosure |
| US6717047B2 (en) * | 2001-08-27 | 2004-04-06 | Hewlett-Packard Development Company, L.P. | EMI enclosure having a flexible cable shield |
-
2002
- 2002-10-29 DE DE10250298A patent/DE10250298A1/de not_active Ceased
-
2003
- 2003-10-10 EP EP03023145A patent/EP1416773A2/de not_active Withdrawn
- 2003-10-28 CA CA002447366A patent/CA2447366A1/en not_active Abandoned
- 2003-10-29 US US10/696,185 patent/US6828534B2/en not_active Expired - Fee Related
- 2003-10-29 CN CNA2003101046127A patent/CN1499136A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008010620U1 (de) | 2008-08-11 | 2008-10-23 | Deutsche Mechatronics Gmbh | Türanordnung für einen Mikrowellenofen und zugehörige Scheibe |
Also Published As
| Publication number | Publication date |
|---|---|
| US6828534B2 (en) | 2004-12-07 |
| US20040149748A1 (en) | 2004-08-05 |
| CN1499136A (zh) | 2004-05-26 |
| DE10250298A1 (de) | 2004-06-03 |
| DE10250298A9 (de) | 2004-10-07 |
| CA2447366A1 (en) | 2004-04-29 |
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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: 20031010 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BUSCH, DIETRICH Inventor name: LEUTNER, KURT |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHOTT AG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Effective date: 20060601 |