CN103256642B - The device preventing microwave leakage of micro-wave oven - Google Patents
The device preventing microwave leakage of micro-wave oven Download PDFInfo
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- CN103256642B CN103256642B CN201310079837.5A CN201310079837A CN103256642B CN 103256642 B CN103256642 B CN 103256642B CN 201310079837 A CN201310079837 A CN 201310079837A CN 103256642 B CN103256642 B CN 103256642B
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- microwave
- heater
- header board
- contact site
- fire door
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Abstract
The present invention relates to a kind of device preventing microwave leakage of micro-wave oven, described micro-wave oven comprises high-frequency microwave generator, have the body of heater of cooking room, and open and close the fire door of cooking room entrance, body of heater is positioned at the header board that cooking room porch has a restriction entrance profile; And fire door comprises a contact site, this contact site is arranged to relative with the header board of body of heater opposite segments when fire door is closed and can be fitted with the opposite segments of header board, it is characterized in that: described in prevent the device of microwave leakage from comprising: extend with the vertical direction of the binding face of body of heater header board opposite segments along contact site, the profile of profile and described cooking room entrance be consistent, be highly enough to keep out or microwave reflection from the clearance leakage between fire door and body of heater, the projective table type microwave choke structure be made up of the impervious material of microwave.The present invention substantially reduces the microwave amount leaked, and effectively protects the use safety of human body.
Description
Technical field
The present invention relates to a kind of device preventing microwave leakage of micro-wave oven, thus increase use of microwave ovens reliability.
Background technology
Micro-wave oven use high-frequency microwave generator produces high-frequency microwave and carrys out cooking food.General micro-wave oven comprises: high-frequency microwave generator, has the body of heater of cooking room, and opens and closes the fire door of cooking room entrance.Being supplied to the high-frequency microwave that cooking room carries out cooking is harmful to human body, so should make the structure that the fire door of micro-wave oven becomes to prevent this from occurring with Proper Design.The existing various technology preventing microwave leakage, the most general is the strangler structure be arranged on fire door.
This strangler structure is that the precalculated position on the body of heater or fire door of micro-wave oven is formed to the recess of shaped.The degree of depth of recess is equivalent to 1/4 of the wavelength of the microwave cooked, and the resistance value of this recess open end is infinitely great, thus restriction microwave leakage.Furnace binding generally comprises cooking room, and cooking room has the header board of a restriction opening profile; And the structure of fire door, generally comprise the barricade be made up of the impervious material of microwave, barricade has a contact site, and this contact site is arranged to relative with the header board of body of heater opposite segments when fire door is closed and can be fitted with the opposite segments of aforementioned header board.And aforementioned strangler is arranged on the edge of barricade.For forming strangler, the edge designs of barricade becomes curved shape, and the add-in card of predetermined shape is connected by welding to barricade.The recess of preliminary dimension is edge limited by add-in card and barricade, and form the predetermined degree of depth, this degree of depth is equivalent to cook 1/4 of microwave wavelength.
The fire door of this structure, bends barricade and add-in card, and the step then welded together, makes complex manufacturing.Most importantly, can not accomplish really to seal laminating between the contact site of barricade and body of heater header board, a large amount of high-frequency microwave still can be gone out by the clearance leakage between the contact site of barricade and body of heater header board, although now there is strangler structure, the microwave leaked is stopped, but having a small amount of microwave in addition can leak into outside body of heater by this strangler structure, and people, when body of heater, still can damage human body.
Summary of the invention
Technical problem to be solved by this invention is the device preventing microwave leakage providing a kind of micro-wave oven for above-mentioned prior art, the microwave major part originally entering gap between contact site and body of heater header board opposite segments can be reflected back cooking room by this device, thus substantially reduces the microwave amount leaked.
The present invention solves the problems of the technologies described above adopted technical scheme: the device preventing microwave leakage of this micro-wave oven, described micro-wave oven comprises high-frequency microwave generator, there is the body of heater of cooking room, and opening and closing the fire door of cooking room entrance, body of heater is positioned at the header board that described cooking room porch has a restriction entrance profile, and described fire door comprises a contact site, this contact site is arranged to when fire door is closed relative with the header board of body of heater opposite segments, and can fit with the opposite segments of aforementioned header board, it is characterized in that: described in prevent the device of microwave leakage from comprising: substantially along the projective table type microwave choke structure be made up of the impervious material of microwave that the vertical direction of the binding face of contact site and body of heater header board opposite segments extends, the profile of this projective table type microwave choke structure is substantially consistent with the profile of described cooking room entrance, the height of this projective table type microwave choke structure meet be enough to keep out or microwave reflection from the clearance leakage between fire door and body of heater.The meaning that projective table type microwave choke structure substantially extends along the vertical direction of the binding face (hereinafter referred to as binding face) of contact site and body of heater header board opposite segments refers to that the vertical direction of projective table type microwave choke structure and binding face is consistent, also can depart to some extent with the vertical direction of binding face slightly, and the profile cardinal principle meaning consistent with the profile of described cooking room entrance of projective table type microwave choke structure refers to, the profile of projective table type microwave choke structure is substantially completely the same with the profile of cooking room entrance, also can be bending slightly to some extent, its main purpose be can keep out or microwave reflection from the clearance leakage between fire door and body of heater.
As improvement, described projective table type microwave choke structure can have multiple: wherein a kind of structure is preferably: be arranged on the ribs on described fire door, and this ribs can embed in described cooking room during fire door closedown, the height of this ribs at least exceeds 1mm relative to the binding face of contact site and body of heater header board opposite segments.The microwave energy reflective that major part can enter between the small gap between contact site and body of heater header board by the projective table type microwave choke structure formed by ribs returns in cooking room, substantially reduces the microwave leaked.
Described fire door comprises the barricade of microwave impervious material be made up relative with cooking room, and described ribs is arranged on this barricade, and described ribs and the described barricade one drawing and forming when making sheet.For barricade, without the need to increasing any cost, for fire door, also without the need to increasing any cost, structure is also fairly simple, and processing is also than being easier to.Simultaneously owing to arranging ribs in barricade border, strengthen the bulk strength of barricade and the flatness of better guarantee contact site, what better ensure that contact site and the opposite segments that body of heater header board is mated coordinates density, thus substantially reduces the microwave amount leaked.
Improve, the outer border of described barricade is provided with choke groove again, and arranging of choke groove can destroy microwave distribution situation, destroys the resonance environment of microwave simultaneously, suppresses the outer discharge of microwave further.
Improve, the middle part on described barricade is provided with the small through hole of some again, so that observe the cooking status of food in cooking room.
Described another good structure of projective table type microwave choke structure is: be arranged on the boss being positioned at contact site and periphery, body of heater header board opposite segments joint place on described header board, when fire door is closed, and the height of this boss at least exceeds 1mm relative to body of heater header board opposite segments.Above-mentioned boss in the entry position in the binding face gap of contact site and body of heater header board opposite segments, also can be arranged on the exit position in the binding face gap of contact site and body of heater header board opposite segments.This boss can form microwave reflection face, the microwave leaked out can be reflected back cooking room again, thus reduce the microwave leaked from the small gap between contact site and body of heater header board.
Improve, the opposite segments of the body of heater header board fitted with described contact site is provided with sealing plane border again, and sealing plane border can ensure that the opposite segments of contact site and body of heater header board better seals laminating, can reduce microwave leakage further.
Described another good structure of projective table type microwave choke structure is: be arranged on the flange collar on described contact site, and be arranged on described body of heater header board opposite segments, can just hold aforementioned flange collar embed draw-in groove.
Compared with prior art, the invention has the advantages that: extended by the vertical direction arranged along the binding face of contact site and body of heater header board opposite segments, profile is consistent with the profile of described cooking room entrance, highly be enough to keep out or microwave reflection from the clearance leakage between fire door and body of heater, the projective table type microwave choke structure be made up of the impervious material of microwave, can will keep out the microwave entering gap between contact site and body of heater header board opposite segments, maybe the microwave major part originally entering gap between contact site and body of heater header board opposite segments can be reflected back cooking room, thus substantially reduce the microwave amount leaked, effectively protect the use safety of human body, increase simultaneously and be retained in microwave energy in stove more for heat food, also the efficiency of heating surface of microwave can be improved further, thus reach energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the structural representation (oven door opening state) of micro-wave oven in the embodiment of the present invention one;
Fig. 2 is the sectional view (fire door closed condition) of micro-wave oven in the embodiment of the present invention one;
Fig. 3 is I portion enlarged drawing in Fig. 2.
Fig. 4 is the structural representation of fire door in the embodiment of the present invention one;
Fig. 5 is the structural representation (oven door opening state) of micro-wave oven in the embodiment of the present invention two;
Fig. 6 is the sectional view (fire door closed condition) of micro-wave oven in the embodiment of the present invention two;
Fig. 7 is I portion enlarged drawing in Fig. 6.
Fig. 8 is the structural representation (oven door opening state) of micro-wave oven in the embodiment of the present invention three;
Fig. 9 is the sectional view (fire door closed condition) of micro-wave oven in the embodiment of the present invention three;
Figure 10 is I portion enlarged drawing in Fig. 9;
Figure 11 is the location diagram of contact site and body of heater header board under fire door closed condition in the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
Micro-wave oven as shown in figures 1-4, it comprises: body of heater 5, it is cooking room 3 in the middle part of body of heater 5, body of heater 5 is positioned at the header board 4 that described cooking room 3 porch has a restriction entrance profile, being provided with high-frequency microwave generator in body of heater 5, on front side of body of heater 5, being provided with the fire door 1 for opening and closing cooking room 3 entrance, before described fire door 1, screen is transparent glass, barricade 2 for being made up of the impervious material of microwave on rear side of fire door 1, this barricade 2 has a contact site 21, this contact site 21 is arranged to when fire door 1 is closed relative with an opposite segments of the header board 4 of body of heater 5, and can fit tightly with the opposite segments of aforementioned header board 4, the outer border of barricade 2 is provided with choke groove 23, middle part on barricade 2 is provided with the small through hole 24 of some, and the opposite segments of the body of heater header board 4 fitted with described contact site 21 is provided with sealing plane border 41, in addition, the micro-wave oven of the present embodiment also comprises: extend along contact site 21 and the vertical direction of the binding face of body of heater header board 4 opposite segments, consistent with the profile of described cooking room 3 entrance, highly be enough to keep out or microwave reflection from the clearance leakage between fire door 1 and body of heater 5, the projective table type microwave choke structure be made up of the impervious material of microwave.
In the present embodiment, projective table type microwave choke structure is: be arranged on the ribs 22 on described barricade 2, and when fire door 1 is closed, this ribs 22 can embed in described cooking room 3, and the height of this ribs 22 at least exceeds 1mm relative to described contact site 21.Ribs 22 and described barricade be one drawing and forming when making sheet, and the material making barricade is generally metal.
In the present embodiment, the barricade made of integrally being stretched by metal material is provided with one with the ribs 22 of its one drawing and forming, ribs 22 is embedded in furnace chamber 3, form microwave choke structure and a microwave reflection face, for first shielding and reducing the microwave amount entered between contact site 21 and sealing plane border 41, thus form the first heavy microwave leakage protection; Contact site 21 and sealing plane border 41 form and seal, and to leak protection for the second weight shield microwaves, above-mentioned ribs 22 can better ensure that the laminating gap of this two sealing surface, reduce further microwave leakage; And the outer border of barricade 2 is provided with the choke groove preventing microwave from leaking, again suppress the outer discharge of microwave, form triple microwave leakage protection.
Embodiment two:
With embodiment one unlike, described projective table type microwave choke structure is: be arranged on the boss 42 being positioned at contact site 21 and periphery, joint place, sealing plane border 41 on described header board 4, when fire door 1 is closed, the height of this boss 42 at least exceeds 1mm relative to sealing plane border 41.Shown in Fig. 5 ~ 7.
Embodiment three
With embodiment one unlike, described projective table type microwave choke structure also comprises: be arranged on the boss 42 being positioned at contact site 21 and periphery, joint place, sealing plane border 41 on described header board 4, when fire door 1 is closed, the height of this boss 42 at least exceeds 1mm relative to sealing plane border 41.Shown in Fig. 8 ~ 10.The design of header board 4 convex platform, forms a microwave reflection face, can shield and reduce the microwave amount entering choke groove 2-C, compared with embodiment one, then increases by a heavy microwave leakage protection.
Embodiment four
With embodiment one unlike, described projective table type microwave choke structure is: be arranged on the flange collar 25 on described contact site 21, and be arranged on sealing plane border 41, can just hold aforementioned flange collar 25 embed draw-in groove 43.Shown in Figure 11.
The invention provides several projective table type microwave choke structures of embodiment one, embodiment two, embodiment four, can any combination acting in conjunction.
Claims (11)
1. the device preventing microwave leakage of a micro-wave oven, described micro-wave oven comprises high-frequency microwave generator, there is the body of heater (5) of cooking room, and opening and closing the fire door (1) of cooking room (3) entrance, body of heater (5) is positioned at the header board (4) that described cooking room (3) porch has a restriction entrance profile, and described fire door (1) includes a contact site (21), this contact site (21) is arranged to when fire door (1) is closed relative with an opposite segments of the header board (4) of body of heater (5), and can fit with the opposite segments of aforementioned header board (4), the described device of microwave leakage that prevents comprises: substantially along the projective table type microwave choke structure be made up of the impervious material of microwave that contact site (21) extends with the vertical direction of the binding face of body of heater header board (4) opposite segments, the profile of this projective table type microwave choke structure is substantially consistent with the profile of described cooking room (3) entrance, the height of this projective table type microwave choke structure be enough to keep out or microwave reflection from the clearance leakage between fire door (1) and body of heater (5), it is characterized in that: described projective table type microwave choke structure comprises: be arranged on the ribs (22) on described fire door (1), and this ribs (22) can embed in described cooking room (3) during fire door (1) closedown, the height of this ribs (22) at least exceeds 1mm relative to contact site (21) and the binding face of body of heater header board (4) opposite segments.
2. the device preventing microwave leakage according to claim 1, it is characterized in that: described fire door comprises the barricade (2) of microwave impervious material be made up relative with cooking room (3), described ribs (22) is arranged on this barricade (2), and described ribs (22) and the described barricade one drawing and forming when making sheet.
3. the device preventing microwave leakage according to claim 2, is characterized in that: the outer border of described barricade (2) is provided with choke groove (23).
4. the device preventing microwave leakage according to claim 2, is characterized in that: the middle part on described barricade (2) is provided with the small through hole (24) of some.
5. the device preventing microwave leakage according to claim 1 or 2 or 3 or 4, it is characterized in that: described projective table type microwave choke structure also comprises: be arranged on the boss (42) that described header board (4) is upper, be positioned at contact site (21) and periphery, body of heater header board (4) opposite segments joint place when fire door (1) is closed, the height of this boss (42) at least exceeds 1mm relative to body of heater header board (4) opposite segments.
6. the device preventing microwave leakage according to claim 5, it is characterized in that: described boss (42) is arranged on the entry position in the binding face gap of contact site and body of heater header board opposite segments, or be arranged on the exit position in binding face gap of contact site and body of heater header board opposite segments.
7. the device preventing microwave leakage according to claim 5, is characterized in that: the opposite segments of the body of heater header board (4) fitted with described contact site (21) is provided with sealing plane border (41).
8. the device preventing microwave leakage according to claim 5, it is characterized in that: described projective table type microwave choke structure comprises: be arranged on the flange collar (25) on described contact site (21), and be arranged on described body of heater header board (4) opposite segments, the draw-in groove (43) that aforementioned flange collar (25) embeds can just be held.
9. the device preventing microwave leakage according to claim 1 or 2 or 3 or 4, it is characterized in that: described projective table type microwave choke structure also comprises: be arranged on the flange collar (25) on described contact site (21), and be arranged on described body of heater header board (4) opposite segments, the draw-in groove (43) that aforementioned flange collar (25) embeds can just be held.
10. the device preventing microwave leakage of a micro-wave oven, described micro-wave oven comprises high-frequency microwave generator, there is the body of heater (5) of cooking room, and opening and closing the fire door (1) of cooking room (3) entrance, body of heater (5) is positioned at the header board (4) that described cooking room (3) porch has a restriction entrance profile, and described fire door (1) includes a contact site (21), this contact site (21) is arranged to when fire door (1) is closed relative with an opposite segments of the header board (4) of body of heater (5), and can fit with the opposite segments of aforementioned header board (4), the described device of microwave leakage that prevents comprises: substantially along the projective table type microwave choke structure be made up of the impervious material of microwave that contact site (21) extends with the vertical direction of the binding face of body of heater header board (4) opposite segments, the profile of this projective table type microwave choke structure is substantially consistent with the profile of described cooking room (3) entrance, the height of this projective table type microwave choke structure be enough to keep out or microwave reflection from the clearance leakage between fire door (1) and body of heater (5), it is characterized in that: described projective table type microwave choke structure comprises: be arranged on the boss (42) that described header board (4) is upper, be positioned at contact site (21) and periphery, body of heater header board (4) opposite segments joint place when fire door (1) is closed, the height of this boss (42) at least exceeds 1mm relative to body of heater header board (4) opposite segments.
The device preventing microwave leakage of 11. 1 kinds of micro-wave ovens, described micro-wave oven comprises high-frequency microwave generator, there is the body of heater (5) of cooking room, and opening and closing the fire door (1) of cooking room (3) entrance, body of heater (5) is positioned at the header board (4) that described cooking room (3) porch has a restriction entrance profile, and described fire door (1) includes a contact site (21), this contact site (21) is arranged to when fire door (1) is closed relative with an opposite segments of the header board (4) of body of heater (5), and can fit with the opposite segments of aforementioned header board (4), the described device of microwave leakage that prevents comprises: substantially along the projective table type microwave choke structure be made up of the impervious material of microwave that contact site (21) extends with the vertical direction of the binding face of body of heater header board (4) opposite segments, the profile of this projective table type microwave choke structure is substantially consistent with the profile of described cooking room (3) entrance, the height of this projective table type microwave choke structure be enough to keep out or microwave reflection from the clearance leakage between fire door (1) and body of heater (5), it is characterized in that: described projective table type microwave choke structure comprises: be arranged on the flange collar (25) on described contact site (21), and be arranged on described body of heater header board (4) opposite segments, the draw-in groove (43) that aforementioned flange collar (25) embeds can just be held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079837.5A CN103256642B (en) | 2013-03-13 | 2013-03-13 | The device preventing microwave leakage of micro-wave oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310079837.5A CN103256642B (en) | 2013-03-13 | 2013-03-13 | The device preventing microwave leakage of micro-wave oven |
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| CN103256642A CN103256642A (en) | 2013-08-21 |
| CN103256642B true CN103256642B (en) | 2016-04-27 |
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| CN201310079837.5A Active CN103256642B (en) | 2013-03-13 | 2013-03-13 | The device preventing microwave leakage of micro-wave oven |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456661B (en) * | 2013-09-18 | 2018-07-13 | 广东美的厨房电器制造有限公司 | Frame members for micro-wave oven and fire door component, micro-wave oven with it |
| CN103654368B (en) * | 2013-12-06 | 2016-06-08 | 宁波方太厨具有限公司 | A kind of steam box micro-wave oven all-in-one |
| CN103654370B (en) * | 2013-12-06 | 2016-09-21 | 宁波方太厨具有限公司 | A kind of steam box microwave oven all-in-one machine |
| CN103654369B (en) * | 2013-12-06 | 2016-03-02 | 宁波方太厨具有限公司 | A kind of steam box microwave oven all-in-one machine |
| CN111141120A (en) * | 2020-01-16 | 2020-05-12 | 南京三乐微波技术发展有限公司 | Quantitative microwave hot air coupling drying oven |
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| CN101140083A (en) * | 2007-10-25 | 2008-03-12 | 广东格兰仕集团有限公司 | Micro-wave oven |
| CN101373079A (en) * | 2007-08-20 | 2009-02-25 | 乐金电子(天津)电器有限公司 | Microwave oven of with panel preventing microwave leakage |
| CN101382305A (en) * | 2007-09-06 | 2009-03-11 | 乐金电子(天津)电器有限公司 | Microwave oven door frame with dual choke chamber |
| CN203177276U (en) * | 2013-03-13 | 2013-09-04 | 宁波方太厨具有限公司 | Device for preventing microwave leakage of microwave oven |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050027355A (en) * | 2003-09-15 | 2005-03-21 | 엘지전자 주식회사 | Door filter in the microwave oven |
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2013
- 2013-03-13 CN CN201310079837.5A patent/CN103256642B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101373079A (en) * | 2007-08-20 | 2009-02-25 | 乐金电子(天津)电器有限公司 | Microwave oven of with panel preventing microwave leakage |
| CN101382305A (en) * | 2007-09-06 | 2009-03-11 | 乐金电子(天津)电器有限公司 | Microwave oven door frame with dual choke chamber |
| CN101140083A (en) * | 2007-10-25 | 2008-03-12 | 广东格兰仕集团有限公司 | Micro-wave oven |
| CN203177276U (en) * | 2013-03-13 | 2013-09-04 | 宁波方太厨具有限公司 | Device for preventing microwave leakage of microwave oven |
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| CN103256642A (en) | 2013-08-21 |
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