阅读说明：本技术 用于射频烤箱的射频阻流器和界面结构 (Radio frequency flow plug and interfacial structure for radio frequency oven ) 是由 马尔科·卡卡诺 米歇尔·斯克洛奇 米歇尔·金蒂莱 于 2017-11-07 设计创作，主要内容包括：一种用于烤箱的RF阻流器,该烤箱具有可在打开位置和关闭位置之间移动以与限定在烤箱的烹饪室(102)中的开口对接的门(104),该RF阻流器包括基部(410)和成排形成的多个谐振元件(420)。烹饪室(102)至少部分地由顶壁(305)、底壁(310)、第一侧壁和第二侧壁(315,320)限定。当门(104)处于关闭位置时,RF阻流器(140)设置在门(104)面向烹饪室(102)的部分处。基部(410)是金属板,并且设置在基本上平行于门(104)所处的第二平面的第一平面中。谐振元件(420)朝向门(104)从第一平面向外折叠,以限定顶排谐振元件(420)、底排谐振元件、第一侧排谐振元件和第二侧排谐振元件,这些谐振元件(420)在当门处于关闭位置时靠近烹饪室的顶壁、底壁、第一侧壁和第二侧壁中的相应的那些。至少一排相对于第一平面以与其它排不同的角度折叠出第一平面。(A kind of RF flow plug for oven, for the oven with that can move between open and closed positions with the door (104) with the open butt joint in the cooking chamber (102) for being limited to oven, which includes base portion (410) and the multiple resonant elements (420) in a row formed.Cooking chamber (102) is at least partly limited by roof (305), bottom wall (310), the first side wall and second sidewall (315,320).When door (104) is in the closed position, RF flow plug (140) is arranged at the part of door (104) towards cooking chamber (102).Base portion (410) is metal plate, and is arranged in the first plane for being arranged essentially parallel to the second plane locating for door (104).Resonant element (420) is foldable outwardly towards door (104) from the first plane, to limit top row resonant element (420), bottom row's resonant element, the first side row's resonant element and second side row's resonant element, these resonant elements (420) are those of corresponding in the roof of cooking chamber, bottom wall, the first side wall and second sidewall when the door is in the closed position.An at least row folds out the first plane relative to the first plane with the angle different from other rows.)

1. a kind of oven, includes:

The door that can be moved between open and closed positions；

Cooking chamber, the cooking chamber are configured for receiving food, and the cooking chamber is at least partly by roof, bottom wall, the One side wall and second sidewall limit, and the cooking chamber further defines the opening to connect with the door；

Radio frequency (RF) energy source is configured to apply RF energy to the food；And

RF flow plug, when the door is in the closed position, cooking towards described for the door is arranged in the RF flow plug It prepares food at the part of room；

Wherein the RF flow plug includes:

Base portion, the base portion include sheet metal, and the base portion is arranged in this first plane, and first plane is substantially parallel The second plane locating for the door；And

Multiple resonant elements, the multiple resonant element are foldable outwardly towards the door from first plane, the resonant element Part is in a row formed to limit top row resonant element, bottom row's resonant element, the first side row's resonant element and second side row's resonant element, These resonant elements are when the door is in the closed position in the roof of cooking chamber, bottom wall, the first side wall and second sidewall It is those of corresponding,

Wherein at least row in the row relative to first plane with from other in the row arrange different angles from Described first it is flat-folded go out.

2. oven according to claim 1, wherein the base portion has the substantially matched shape of shape with the opening, And wherein the distance between the base portion and the roof of the cooking chamber are greater than the base portion and the bottom wall and described cook It prepares food the first side wall and the distance between each of second sidewall of room.

3. oven according to claim 2, wherein with bottom row's resonant element, first side row's resonant element and institute It states second side row's resonant element to compare, the top row resonant element folds out institute relative to first plane at different angles State the first plane.

4. oven according to claim 2, wherein when the door is in the closed position, the top row resonant element It is humorous in each of part, bottom row's resonant element, first side row's resonant element and described second side row's resonant element The phase shaken in the distal end and the roof of the cooking chamber, the bottom wall, the first side wall and the second sidewall of element It those of answers substantially isometric.

5. oven according to claim 1, wherein the roof and both the first side wall and the second sidewall it Between crosspoint form right angle, and the bottom wall and the first side wall and the second sidewall between the two intersect dot At bent corners.

6. oven according to claim 5, wherein the base portion defines substantially circular turning to correspond in institute State the curved of the intersection between bottom resonant element row and first side row's resonant element row and second side row's resonant element Crank throw angle.

7. oven according to claim 6, wherein the base portion limits the turning of approximate right angle, to correspond to the roof The right angle of intersection between the first side wall and second sidewall.

8. oven according to claim 7, wherein the end piece of bottom row's resonant element is around described substantially circular Turning fold with correspond to the bent corners.

9. oven according to claim 8, wherein at least one resonant element on the end piece is via far from described The slot that base portion extends linearly is formed, and is arranged in the resonant element at the position other than the end piece via far from institute The slot for stating base portion linear incision is formed.

10. oven according to claim 1, wherein the top row resonant element, the bottom arrange resonant element, described first The distal end of side row's resonant element and described second side row's respective resonant element of resonant element is located in the plane of the opening.

11. a kind of radio frequency (RF) flow plug for oven, the oven has door, and the door can be in open position and close stance Between setting move with be limited to the oven cooking chamber in open butt joint, the cooking chamber, which is at least defined, partly leads to Roof, bottom wall, the first side wall and second sidewall are crossed, when the door is in the closed position, the RF flow plug setting exists At the part towards the cooking chamber of the door, the RF flow plug includes:

Base portion, the base portion include sheet metal, and the base portion is arranged in this first plane, and first plane is substantially parallel The second plane locating for the door；And

Multiple resonant elements, the multiple resonant element are foldable outwardly towards the door from first plane, the resonant element Part is in a row formed to limit top row resonant element, bottom row's resonant element, the first side row's resonant element and second side row's resonant element, These resonant elements are when the door is in the closed position in the roof of cooking chamber, bottom wall, the first side wall and second sidewall It is those of corresponding,

Wherein at least row in the row relative to first plane with from other in the row arrange different angles from Described first it is flat-folded go out.

12. RF flow plug according to claim 11, wherein the base portion has with the shape of the opening substantially The shape matched, and wherein the distance between roof of the base portion and the cooking chamber be greater than the base portion and the bottom wall with And the first side wall and the distance between each of second sidewall of the cooking chamber.

13. RF flow plug according to claim 12, wherein the top row resonant element relative to first plane with It is folded out different from the angle of bottom row's resonant element, first side row's resonant element and described second side row's resonant element First plane.

14. RF flow plug according to claim 13, wherein the top row is humorous when the door is in the closed position Element, bottom row's resonant element, first side row's resonant element and the described second side of shaking are arranged in each of resonant element Resonant element distal end it is those of corresponding in the roof of the cooking chamber, bottom wall, the first side wall and second sidewall basic It is upper equidistant.

15. RF flow plug according to claim 11, wherein both the roof and the first side wall and second sidewall Between crosspoint form right angle, and the bottom wall is formed with the crosspoint of the first side wall and second sidewall between the two Bent corners.

16. RF flow plug according to claim 15, wherein the base part defines substantially round turning, with right Ying Yu arranges the described curved of the intersection between the resonant element of side in the bottom resonant element row and described first and second Crank throw angle.

17. RF flow plug according to claim 16, wherein the base portion defines the turning at substantially right angle with correspondence The right angle of intersection between the roof and the first side wall and second sidewall.

18. RF flow plug according to claim 16, wherein the end piece of bottom row's resonant element is around described basic Upper circular turning is folded to correspond to the bent corners.

19. RF flow plug according to claim 18, wherein at least one resonant element on the end piece via from The slot that the base portion extends linearly out is formed, and be arranged in the resonant element at the position in addition to the end piece via from The slot that the base portion linear incision goes out is formed.

20. RF flow plug according to claim 11, wherein the top row resonant element, the bottom arrange resonant element, institute The distal end for stating resonant element in each of the first side row's resonant element and described second side row's resonant element is located at the opening Plane in.

Technical field

Exemplary embodiment relates generally to oven, more particularly, to use radio frequency (RF) heating together with Convective Heating Oven and RF flow plug used therewith.

Background technique

Being able to use the combi oven that more than one heat source (such as convection current, steam, microwave etc.) is cooked has made With decades.Each cooking source has the unique feature group of their own.Therefore, combi oven usually can use each difference The advantages of cooking source attempts to provide obtains improved cooking process in terms of time and/or quality.

In some cases, microwave cooking can than convection current or it is other types of culinary art faster.It is therefore possible to use microwave Culinary art is to accelerate cooking process.However, microwave is usually not used for cooking some food, brown food can not be cooked.Consider Certain required characteristics related with taste and appearance can be can increase to brown stain, it may be necessary to using another in addition to microwave cooking Kind cooking methods are to realize brown stain.In some cases, applying heat for the purpose of brown stain may include using in oven cavity The heating air-flow of interior offer transfers heat to the surface of food.

However, even if using microwave and air-flow combination, the limitation that traditional microwave culinary art permeate relative to food still possibility Make to combine not ideal enough.In addition, typical microwave some indifferences or uncontrollable in the mode for applying energy to food.Cause This, it may be desirable to the ability for obtaining excellent culinary art result to operator provides further improve.However, providing relative to culinary art There is food the improved oven of combined ability of controllable RF energy and convection energy may need substantially to redesign Or rethink oven structurally and operationally.

Summary of the invention

Therefore, some exemplary embodiments can provide the improved structure for applying heat for the food into oven And/or system.In addition, this improvement may need to be used to support or operate the new equipment of this structure or system.

In the exemplary embodiment, a kind of oven is provided.Oven may include can be between open and closed positions Mobile door is configured to receive the cooking chamber of food, is configured to apply the RF energy source of RF energy to food, and when door is in The shop front is set when closed position to the RF flow plug at the part of cooking chamber.Cooking chamber can be at least partly by roof, bottom Wall, the first side wall and second sidewall limit, and cooking chamber further limits the opening docked with door.RF flow plug may include by metal Base portion made of piece and multiple resonant elements.Base portion can be set flat in be arranged essentially parallel to the second plane locating for door first In face.Resonant element can fold out the first plane towards door.Resonant element can in a row be formed with limit top row resonant element, Bottom arranges resonant element, the first side row's resonant element and second side and arranges resonant element, these resonant elements are being in close stance when door It is those of corresponding in the roof of cooking chamber, bottom wall, the first side wall and second sidewall when setting.An at least row can be relative to First plane folds out the first plane with the angle different from other rows.

In the exemplary embodiment, a kind of RF flow plug for oven is provided, which has can be in open position The door moved between closed position, to connect with the opening in the cooking chamber for being limited to oven.RF flow plug may include base portion The multiple resonant elements in a row formed.Cooking chamber can be limited at least partly by roof, bottom wall, the first side wall and second sidewall It is fixed.When the door is in the closed position, RF flow plug may be provided at the shop front at the part of cooking chamber.Base portion, which can be, has periphery The sheet metal at edge.Base portion can be set in the first plane for being arranged essentially parallel to the second plane locating for door.Resonant element Can towards door from first it is flat-folded go out, with limit top row resonant element, bottom row resonant element, the first side row resonant element and Second side arrange resonant element, these elements when the door is in the closed position close to the roof of cooking chamber, bottom wall, the first side wall and It is those of corresponding in second sidewall.An at least row can fold out relative to the first plane with the angle different from other rows One plane.

When using using exemplary embodiment oven cook when, some exemplary embodiments can improve culinary art performance or Operator's experience.

Detailed description of the invention

The present invention is so briefly described, with reference to the drawings, attached drawing is not necessarily drawn to scale, and its In:

Fig. 1 shows the perspective view of the oven that can use at least two energy sources accoding to exemplary embodiment；

Fig. 2 shows the functional block diagrams of the oven of Fig. 1 accoding to exemplary embodiment；

Fig. 3 A shows the front view of the cooking chamber of the removed oven of door accoding to exemplary embodiment；

Fig. 3 B shows the viewgraph of cross-section of the cooking chamber of slave back perspective view eyes front accoding to exemplary embodiment；

Fig. 3 C shows the closer view of the top corner portion of cooking chamber accoding to exemplary embodiment；

Fig. 3 D shows the closer view of the bottom corner portion of cooking chamber accoding to exemplary embodiment；

Fig. 4 A shows door in an open position accoding to exemplary embodiment and the RF flow plug that is arranged on door Side view；

Fig. 4 B shows the cross-sectional side view of the same side interception of slave oven accoding to exemplary embodiment, to show door With the interface with RF flow plug in the closed position；

Fig. 5 A shows the top view of the sheet material that can be cut into pre-folded choked flow device assembly accoding to exemplary embodiment Figure；And

Fig. 5 B shows the top view of the flow plug after cutting and folding accoding to exemplary embodiment.

Specific embodiment

Some exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings now, be shown some but not It is all exemplary embodiments.In fact, embodiment described and illustrated herein is not necessarily to be construed as the model of the limitation disclosure It encloses, applicability or configuration.On the contrary, providing these exemplary embodiments so that the disclosure will meet applicable legal requirement.It is identical Appended drawing reference always show identical element.In addition, as used herein, term "or" should be interpreted whenever its operand One of or one or more of generate genuine logical operator when being true.As used herein, can operate coupling should be appreciated that To be related to direct or indirect connection, in any case, the direct or indirect connection, which can be realized, to be operationally coupled to each other Component functional interconnection.

Some exemplary embodiments can improve the culinary art performance of oven and/or can improve using exemplary embodiment Personal operator's experience.In this regard, the application based on controllable RF energy, oven can relatively quickly cook food Object, and browning food can also be made by providing hot-air into oven with contracurrent system as described herein.However, being The cooking speed for using RF energy is improved, prevents RF leakage from becoming important consideration factor.Meanwhile the spatter property of oven is also The critical component of quality product is provided.Therefore, some exemplary embodiments can provide improved flow plug design and interface knot Structure to realize the purpose for keeping RF energy in the cooking chamber of oven, while also allowing to improve the interface between door and cooking chamber.

Fig. 1 shows the perspective view of oven 1 accoding to exemplary embodiment.As shown in Figure 1, oven 100 may include cooking It prepares food room 102, food can be placed in cooking chamber 102, appointing at least two energy sources for can be used by oven 100 One application heat.Cooking chamber 102 may include door 104 and interface plate 106, and when door 104 is closed, interface plate 106 can position Near door 104.Door 104 can be operated by handle 105, and handle 105 can be parallel to the surface of support oven and extend through roasting The front of case 100.In some cases, in alternative embodiments, interface plate 106 can be located substantially on 104 top of door (as schemed Shown in 1) or on 104 side of door.In the exemplary embodiment, interface plate 106 may include touch-screen display, can be to behaviour Author provides and visually indicates and can also receive the touch input from operator.Interface plate 106 can be to be mentioned to operator The mechanism of the feedback about cooking process state, option etc. is provided for the mechanism of instruction, and to operator.Door 104 can be through It is rotated between open position (being shown in Fig. 1) and closed position by hinge component 107.

In some embodiments, oven 100 may include multiple brackets or may include bracket (or pan) supporting element 108 or guiding groove in order to accommodating one or more brackets 110 or the insertion of pan of food to be cooked.Exemplary In embodiment, air delivery aperture 112 be can be positioned so that close to these bracket supports 108 (for example, in one embodiment Just under the level of these bracket supports) so that hot-air (can not show via hot-air circulating fan in Fig. 1 It is forced into cooking chamber 102 out).Hot-air circulating fan can be via being arranged in the rear wall of cooking chamber 102 (that is, with 104 phase of door Pair wall) at chamber outlet end mouth 120 from cooking chamber 102 suck air.Air can be defeated via air from chamber outlet end mouth 120 Aperture 112 is sent to be circulated back in cooking chamber 102.Via chamber outlet end mouth 120 from cooking chamber 102 removal after, it is clean, Before heat and speed controlled air returns in cooking chamber 102, air can be cleaned, heat and be pushed by other component Pass through system.Including chamber outlet end mouth 120, air delivery aperture 112, hot-air circulating fan, cleaning member and they it Between the air circulation systems of all pipelines the first air circulation system can be formed in oven 100.

In the exemplary embodiment, pan or branch at least partly can be placed on to heat using radio frequency (RF) energy One of frame 110 it is upper (or in the embodiment without using bracket 110 be only cooking chamber 102 base portion on) food.Meanwhile Available air-flow can be heated to realize further heating or even brown stain.Note that metal dish can be placed on some examples On the bracket support 108 of property embodiment or one in bracket 110.However, oven 100 can be configured as using frequency And/or mitigation strategy come detect and/or prevent may additionally by RF energy is used together with metal parts and generate appoint What electric arc.

In the exemplary embodiment, RF energy can be transmitted to via the antenna module 130 being arranged near cooking chamber 102 Cooking chamber 102.In some embodiments, multiple components can be provided in antenna module 130, and these components can be placed On the opposite side of cooking chamber 102.Antenna module 130 may include being configured as RF energy being couple in cooking chamber 102 One or more examples of power amplifier, transmitter, waveguide and/or analog.

Cooking chamber 102 is configurable to provide on its five side (for example, top side, bottom side, rear side and right side and left side) RF shielding, but door 104 may include flow plug 140 to provide RF shielding for front side.Flow plug 140 therefore can be configured as with The opening limited at the front side of cooking chamber 102 is fitted close, and to prevent from working as, door 104 is closed and RF energy is via antenna module 130 are applied to RF energy when in cooking chamber 102 leaks from cooking chamber 102.

In the exemplary embodiment, washer 142 can be provided to extend around the periphery of flow plug 140.In this regard, it pads Circle 142 can be formed by the material of such as wire mesh, rubber, silicon etc, or in door 104 and can enter cooking chamber 102 Opening periphery between some compressible other such materials formed.In some cases, washer 142 can provide base Airtight sealing in sheet.However, in other cases (for example, using wire mesh), washer 142 can permit Air extends there through.Especially in the case where washer 142 is substantially airtight, it may be desirable to provide with above-mentioned first air circulation The relevant air cleaning system of system.

Antenna module 130 is configurable to generate the controllable RF transmitting entered in cooking chamber 102 using solid-state module.Cause This, oven 100 can not use any magnetron, but generate using only solid part and control is applied to cooking chamber 102 In RF energy.The use of solid part can be in characteristic (for example, power/energy level, phase and frequency) quilt for allowing RF energy It controls than providing clear advantage for the use of the bigger degree of the possible degree of magnetron.However, since cooking food needs Relatively high power is wanted, solid state component itself will also generate relatively high heat, in order to keep solid state component cooling and avoid pair Its damage, it is necessary to effectively remove the heat.In order to cool down solid part, oven 100 may include the second air circulation system System.

Second air circulation system can operate in the oven body 150 of oven 100 with circulating cooling air, for preventing The solid part overheat of RF energy application is powered and controlled for cooking chamber 102.Second air circulation system may include being formed in The entrance array 152 of bottom (or pedestal) part of oven body 150.Specifically, the base area of oven body 150 can be arrangement The substantially hollow chamber in oven body 150 below cooking chamber 102.Entrance array 152 may include multiple ingress ports, These ingress ports are disposed on each opposite side of the oven body 150 of pedestal (for example, when observing from the front oven Right side and left side when 100), and be also arranged on the front of the oven body 150 of pedestal.Entrance array 152 is set The part set on 150 side of oven body can be relative to the most of with certain angle of the oven body 150 in each respective side Degree is formed.In this regard, the part on the side that oven body 150 is arranged in of entrance array 152 can be with about 20 degree of (examples Such as, between 10 degree and 30 degree) angle taper toward each other.It is this tapered to can ensure that even if being inserted into ruler when oven 100 (for example, since wall or other equipment are close to oven body 150 when in the very little accurately sufficiently wide space to accommodate oven body 150 Side), also space is formed to allow air into entrance array 152 in base-adjacent.Before the oven body 150 close to pedestal Portion, when door 104 is closed, the corresponding portion of entrance array 152 can be located in plane identical with the front of oven 100 (or It is located at least in the plane parallel with the front of oven 100).It is tapered as not needing to enter oven body 150 to provide air The channel of the entrance array 152 of front, because the region must be kept unimpeded to allow door 104 to open.

Pipeline can provide path from pedestal for the air for entering pedestal by entrance array 152, to pass through oven body 150 It is moved to what control electronic device (such as solid part) was located therein (under the influence of coming from cool air circulation fan) upwards Push up lattice part.Pushing up lattice part may include various structures, for ensuring from basement to top lattice and finally via outlet heat release hole 154 air for leaving oven body 150 pass through near control electronic device, to remove heat from control electronic device.Then, hot Air (that is, air that heat is removed from control electronic device) is discharged from outlet heat release hole 154.In some embodiments, The rear portion of the right side and left side in oven body 150 and the oven body 150 close to top lattice can be set in outlet heat release hole 154.It will Entrance array 152, which is placed on base position and outlet heat release hole 154 is placed at the lattice of top, ensures that relatively warm air rises just The air for preventing discharge (from outlet heat release hole 154) is passed through system flowback and being inhaled into entrance array 152 by normal trend.According to This, the air being drawn into entrance array 152 can reliably be expected to air at ambient room temperature, rather than recycle , discharge cooling air.

Fig. 2 shows the functional block diagrams of oven 100 accoding to exemplary embodiment.As shown in Fig. 2, oven 100 can wrap Include at least first energy source 200 and the second energy source 210.First energy source 200 and the second energy source 210 can respectively correspond to Respectively different cooking methods.In some embodiments, first energy source 200 and the second energy source 210 can be that RF adds respectively Heat source and convection heat sources.It will be appreciated, however, that additional or substitution energy source can also be provided in some embodiments. In addition, some exemplary embodiments can only include the context of the oven of single energy source (for example, second energy source 210) Middle practice.As such, exemplary embodiment can be in other routines for applying heat using gas for example for heating or electric power It is practiced on oven.

As described above, first energy source 200 can be RF energy source (or RF heating source), it is configured as generating relatively wide The phased energy source of the RF energy of spectrum or specific narrowband is to cook the food in the cooking chamber 102 for being placed on oven 100.Therefore, For example, first energy source 200 may include antenna module 130 and RF generator 204.The RF generator of one exemplary embodiment 204 can be configured as with selected horizontal and generate RF energy with selected frequency and phase.In some cases Under, frequency can be selected in the range of about 6MHz to 246GHz.However, other RF energies can be used in some cases Band.In some instances, frequency can be selected for the application of RF generator 204 from ISM band.

In some cases, antenna module 130, which can be configured as, is emitted to RF energy in cooking chamber 102 and receives Feedback is horizontal with the absorption for indicating each different frequency in food.Then absorption level can be used to control the production of RF energy It is raw, to provide the balance culinary art of food.However, horizontal feedback need not be absorbed using instruction in all embodiments.For example, one A little embodiments can be using for based on for selected cooking time, power level, food type, recipe and/or similar The specific combination of object and the predetermined policy that identifies select the algorithm of frequency and phase.In some embodiments, antenna module 130 It may include the mutiple antennas that the interface between antenna module 130 and cooking chamber 102 is provided, waveguide, transmitter and RF is transparent covers Cover material.Thus, for example, four waveguides can be provided, and in some cases, each waveguide be can receive by control electronics The RF energy that the corresponding power module or power amplifier of the their own of the RF generator 204 operated under the control of device 220 generate Amount.In an alternative embodiment, can using single multiplexing generator by different energy be transported to each wave duct road or Wave duct road centering, to apply energy in cooking chamber 102.

In an exemplary embodiment, the second energy source 210, which can be, can induce food brown stain and/or convection current to add The energy source of heat.Thus, for example, the second energy source 210 can be pair including flow generator 212 and air heater 214 Flow heating system.Flow generator 212 may be embodied as or including hot-air circulating fan or can certain driving air-flow pass through culinary art Another device of room 102 (for example, via air delivery aperture 112).Air heater 214 can be electrical heating elements or other The heater of type heats the air driven by flow generator 212 towards food.The air temperature and current speed of air all will It influences to use the second energy source 210, and is more specifically realized using the combination of first energy source 200 and the second energy source 210 Cooking time.

In the exemplary embodiment, first energy source 200 and the second energy source 210 can be directly or indirectly by control electricity Sub- device 220 controls.Control electronic device 220 can be configured as reception and describe selected recipe, food and/or culinary art item The input of part, to control cooking process to first energy source 200 and the second energy source 210 offer instruction or control.One In a little embodiments, control electronic device 220 can be configured as the static state for receiving about food and/or cooking condition and/or move State input.Dynamic input may include the feedback data about the phase and frequency for the RF energy for being applied to cooking chamber 102.One In a little situations, dynamic input may include the adjusting carried out during cooking process by operator.Static state input may include by The parameter that operator inputs as primary condition.For example, static input may include food type, original state or temperature, most Whole expectation state or temperature, the quantity of part to be cooked and/or size, position object to be cooked are (for example, when using multiple supports When disk or horizontal plane), a series of selection (for example, limiting cooking steps) of recipe and/or the description of analog.

In some embodiments, control electronic device 220 can be configured as also to flow generator 212 and/or air Heater 214 provides instruction or controls to control the air-flow by cooking chamber 102.However, not being to simply rely on air-flow hair To influence the stream condition in cooking chamber 102, some exemplary embodiments can also use first energy source for the control of raw device 212 200 apply the energy for cooking food, to manage the amount of the energy applied by each source by control electronic device 220 Balance or management.

In the exemplary embodiment, control electronic device 220 can be configured as access algorithm and/or tables of data, these Algorithm and/or data table definitions RF cook parameter, these RF culinary art parameter is based on description food for driving RF generator 204 The primary condition information of product and/or pair that is determined by these algorithms or tables of data is directed to based on the recipe for defining cooking step sequence RF energy is generated with corresponding horizontal, phase and/or frequency between seasonable.As such, control electronic device 220 can be configured as use RF culinary art is as the primary energy source for cooking food, and Convective Heating application is the secondary energy for brown stain and faster cooked Amount source.However, other energy sources (for example, third or other energy sources) also can be used during the cooking process.

In some cases, culinary art signature, program or recipe can be provided define can be defined for food it is multiple latent The culinary art parameter used by each of cooking stage or step, and control electronic device 220 and can be configured as access And/or execute culinary art signature, program or recipe (all these usually to may be referred to herein as recipe).In some embodiments In, control electronic device 220 can be configured as based in addition to providing dynamic input (that is, the change when program has been carried out Culinary art parameter) degree except customer-furnished input come determine execute which recipe.In the exemplary embodiment, it controls The input of electronic device 220 can also include that brown stain instructs.In this regard, for example, brown stain instruction may include about setting Air velocity and air velocity, air themperature and/or the application time of temperature combination are (for example, for certain speed and heating group The start and stop time of conjunction) instruction.Brown stain instruction can be provided via the addressable user interface of operator, or can be with It is a part of culinary art label, program or recipe.

As described above, first energy source 200 can be RF energy source, it is configured to selected RF frequency (for example, in ISM In frequency band) it generates into cooking chamber 102.Flow plug 140 can be provided with the behaviour in the case where door 104 is closed in oven 100 The RF frequency in cooking chamber 102 is sealed during work.Flow plug 140 therefore grasp by the interface between cooking chamber 102 and door 104 Make.The interface is the relatively large opening into 102 front of cooking chamber.

Flow plug 140 is provided to be substantially tuned reflective device assembly so that RF energy is maintained at cooking chamber by providing RF energy is sealed in interface in 102.Flow plug 140 is constructed based on a quarter resonant circuit is provided.More Body, flow plug 140 uses 1/4 wavelength (λ) resonant element, which has around the periphery of flow plug 140 substantially Uniform width.In general, 1/4 wavelength resonant element for providing these types is relatively conventional.However, due to cooking chamber 102 Shape property and door 105 size and weight, exemplary embodiment can set using the flow plug 140 of unique texture Meter.In addition, the method for manufacture flow plug 140 is also possible to uniqueness because flow plug 140 is designed with unique structure 's.

Before the specific structure of description flow plug 140, the uniqueness side of the overall shape and interface of cooking chamber 102 will be discussed Face, to more fully understand including the Unique physical design above by reference to described in Fig. 3 in terms of potential expectation, Fig. 3 by Fig. 3 A, 3B, 3C and 3D is limited.In this regard, Fig. 3 A shows the front view for removing the cooking chamber 102 of door 104, and Fig. 3 B is shown from rear The viewgraph of cross-section of the cooking chamber 102 of view eyes front.Fig. 3 C shows the closer view of the top corner portion of cooking chamber 102, The part is labeled as round B in figure 3b.Fig. 3 D shows the more close-up view of the bottom corner portion of cooking chamber 102, and the part is in figure 3b Labeled as circle C.

Referring especially to Fig. 3 A, 3B, 3C and 3D, cooking chamber 102 by five fixation walls and door 104 (be shown in FIG. 1, but It is not shown in Fig. 3) it limits.Five fixation walls include rear wall 300, roof 305, bottom wall 310, the first side wall 315 and second sidewall 320.When the open view cooking chamber 102 formed when being opened by door 104, the first side wall 315 and second sidewall 320 are opposite Side wall and right side wall and left side wall can be considered as.Rear wall 300 includes inlet air perforation 330 and outlet air Perforation 335, as a part of the first air circulation system, air is worn by inlet air perforation 330 and outlet air Hole 335 (and RF energy cannot pass through).Rear wall 300, roof 305, bottom wall 310 and the first side wall 315 and second sidewall 320 Respectively it is substantially in shape (for example, the plane surface for forming substantial rectangular) of plane, and the flat table of each wall Face terminates at the end that the linear arrangement of adjacent wall is joined in corresponding intersection.

As shown in figure 3, the crosspoint between roof 305 and the first side wall 315 forms substantially 90 degree of crosspoint.Change sentence It talks about, not only roof 305 is substantially perpendicular to the extension of the first side wall 315, but also the friendship between roof 305 and the first side wall 315 Crunode also substantially forms right angle along its whole length.Similarly, the crosspoint between roof 305 and second sidewall 320 is formed The crosspoint of substantially 90 degree.In other words, not only roof 305 is substantially perpendicular to the extension of second sidewall 320, but also roof 305 Crosspoint between second sidewall 320 also substantially forms right angle along its whole length.Between roof 305 and rear wall 300 Crosspoint is also similar.

However, between bottom wall 310 and the first side wall 315 and second sidewall 320 (and the respective corners being consequently formed) Crosspoint is different.In this regard, although bottom wall 310 is substantially perpendicular to the extension of the first side wall 315,310 He of bottom wall Crosspoint between the first side wall 315 does not form right angle along its whole length.On the contrary, between bottom wall 310 and the first side wall 315 Crosspoint part along its whole length be bent.Similarly, although bottom wall 310 is substantially perpendicular to the extension of second sidewall 320, It is the crosspoint between bottom wall 310 and second sidewall 320 not along its whole length formation right angle.On the contrary, bottom wall 310 and second Crosspoint part between side wall 320 is also bent along its whole length.Bottom wall 310 and the first side wall 315 and second sidewall 320 it Between respective interface curve about the center line almost symmetry being divided in cooking chamber 102 among respective corners.In addition to Except the region in one side wall 315 and second sidewall 320 and 310 crosspoint of bottom wall, rear wall 300 and the first side wall 315 and second side Crosspoint between each of wall 320 and bottom wall 310 is substantially crossing at right angle point.

With specific reference to Fig. 3 C and 3D, the crosspoint between the first side wall 315 and roof 305 can form right angle corner 350. As described above, second sidewall 320 can also meet in the interface of 350 similar structures of right angle corner with Fig. 3 C with roof 305. Meanwhile the crosspoint between the first side wall 315 and bottom wall 310 can form bent corners 355.Bent corners 355 can provide base Clean surface is easier than right angle corner in the position (that is, in the bottom of cooking chamber 102) in sheet.In this regard, for example, If bent corners 355 are changed to right angle corner, what is generated by cooking process or after food is inserted into cooking chamber 102 overflows Object or splash, which can leave, out is very difficult to (sometimes impossible) clean material.In addition, being exposed in overflow or splash After high fever, material may become difficult to remove, and be further exacerbated by the above problem, and material is caused to be accumulated at any time.By mentioning For bent corners 355, by applying detergent, applying cleaning force and/or by using being otherwise difficult to apply to right angle corner Tool can more easily clean surface associated there.Meanwhile for the turning of 102 near top of cooking chamber, splash Or splash reaches that a possibility that these surfaces is much smaller, therefore is right angle corner (and design and the letter for building cooking chamber 102 Unisexuality).Particularly, in the exemplary embodiment, both bottom wall 310 and the first side wall 315 and second sidewall 320 can be by lists Sheet material (for example, metal) is made.Therefore, monolithic can be bent to form bottom wall 310 and the first side wall 315 and second sidewall The example of bent corners 355 between each of 320.Then, roof 310 and rear wall 300, which can be fixed to, forms bottom wall 310 And in the single piece of material of the first side wall 315 and second sidewall 320, each of roof 310 and rear wall 300 be can be individually Planar metal sheet.In addition, in some cases, rear wall 300 and roof 305 can be the intersection at them with right-angle bending Monolithic.Therefore, in some cases, cooking chamber 102 can be by as little as two sheet materials or up to three sheet materials are formed.

It is assumed that cooking chamber 102 with the interface of door 104 have specific shape (for example, two round base angles and two it is straight Angle apex angle), flow plug 140 must also have corresponding shape.Furthermore, it is desirable that door 104 is between open and closed positions Rotation, while flow plug 140 is placed in be properly acted by appropriate location according to the specific shape at interface, this is to flow plug 140 cause further design limitation, and may influence to manufacture the most effective and/or advantageous mode of flow plug 140.

Fig. 4 A shows the side view of door 104 in an open position, and Fig. 4 B shows from the same side of oven 100 and intercepts Cross-sectional side view, it is in the closed position to show door 104.It is appreciated that from Fig. 4 A when handle 105 is elevated, door 104 It can be rotated along direction shown in arrow 400.When door 104 rotates to the interfacial contact being open with cooking chamber 102, flow plug 140 will need in insertion opening.

Referring to Fig. 4 A and 4B, it can be seen that flow plug 140 generally includes base portion 410 and multiple resonant elements 420, the resonance Element 420 extends from base portion 410, and is arranged around the periphery of base portion 410.The shape of base portion 410, which is substantially similar to, cooks The shape for the opening prepared food in room 102, and be installed on the inboard portion of door 104 using mounting structure 415.Mounting structure 415 Extend when door 104 is in the closed position along inward direction, or extends in upward direction when door 104 is in an open position. Base portion 410 can be by having the metal plate for the thickness for being enough to assign 410 intensity of base portion and durability to be formed.In this regard, work as door 104 it is in an open position when, (or falling on base portion 410) can be routinely arranged on base portion 410 in pan or container.Cause This, the thickness of base portion 410, which should be enough to handle, to be impacted and any puncture to base portion 410 is avoided to damage or excessive dent or damage It is bad.

As shown in Figure 4 B, when door 104 is in the closed position, base portion 410 is fully inserted into cooking chamber 102.Meanwhile Resonant element 420 extends back towards door 104, and terminates at the opening of cooking chamber 102 substantially planar (near or) At point.In other words, the plane for connecting the front end of roof 305, bottom wall 310 and the first side wall 315 and second sidewall 320 can be with Pay close attention to the distal end of resonant element 420.Resonant element 420 can prolong around all peripheral edges of base portion 410 towards door 410 backward It stretches, so that base portion 410 is finally to be substantially equal in the distance insertion cooking chamber 100 of the length of resonant element 420.

It is appreciated that door 104 from the open position of Fig. 4 A along the direction (also showing in Figure 4 A) of arrow 400 from Fig. 4 B Rotation can cause the top 440 of choker 140 to hit or impact the top edge 450 of cooking chamber 102.Therefore, in order to ensure The top edge 450 of cooking chamber 102 is not contacted at the top 440 of 104 down periods of door flow plug 140.It is pushed up along flow plug 140 Portion resonant element 420 (term " top " refer to when door 104 close when position) with they are advanced inwardly and downwards by Gradual change is thin (referring again to when door 104 is closed).In other words, base portion 410 and the first side wall 315 and second sidewall 320 and Bottom wall 310 is substantially equidistant.However, the interval of base portion 410 and roof 305 is compared and the first side wall 315 and second sidewall 320 and bottom Wall 310 is spaced further apart.In addition, resonant element 420 flow plug 140 close the first side wall 315 and second sidewall 320 and Base portion 410 is substantially perpendicular at the part of bottom wall 310.Therefore, resonant element 420 is arranged essentially parallel to 315 He of the first side wall Respective side walls in second sidewall 320 and bottom wall 310.However, resonant element 420 forms angle relative to roof 305, and Both it had been not orthogonal to base portion 410 or had been not parallel to roof 305.Further, since the shape at the interface of 102 opening of cooking chamber, choked flow The turning that device 140 will need to have there are two fillet and two approximate right angles.Therefore, above-mentioned relation can in the region there are fillet With slightly different.

Therefore the manufacture of flow plug 140 may also need carefully to realize and manufacture fillet and one group of taper resonant element phase The necessary change in shape closed.Fig. 5 A shows the piece for being cut into pre-folded choked flow device assembly accoding to exemplary embodiment The top view of material.Fig. 5 B shows the top view of the flow plug 140 after cutting and folding.

As shown in Figure 5A, the metal plate 500 with length L1 and width W1 can be provided.Sheet metal 500 can be along length Along the periphery of sheet metal 500, cutting includes multiple slots 510 on the opposite side that L1 extends.Slot 510 can usually be cut with final Resonant element 420 is defined with identical width, and has and forms quarter-wave under the operating frequency of oven 100 Length characteristic needed for long resonance circuit.Resonant element 420 is formed as extending far from base portion 410 opposite by the cutting of slot 510 Thin protrusion or protruding portion (for example, finger-shaped material).Therefore, resonant element 420, which is formed over the ground, has low-impedance resonance short circuit, makes It obtains flow plug 140 and forms effective reflector so that RF leakage signal to be maintained in cooking chamber 102.Slot 510 is in some regions It can have slightly different width, to generate one group of one, two or three pre-folded closer to its adjacent resonating elements Resonant element 515, and others depart slightly from its adjacent resonating elements.Alternatively, all slots 510 can have identical size. Slot 510 can directly be cut on the periphery of metal plate 500 in the long side of metal plate 500.However, in some cases, slot 510 It can not be cut on shorter side (for example, side with width W1), until removing section 520 (via one Or multiple slots) cut away from metal plate 500.Removal part 520 may need to be removed for allowing to be formed fillet 530 and taper is humorous Shake element 535.In this regard, fillet 530 can be formed to correspond to the bent corners 355 of cooking chamber 102, and taper resonance Element 535 can be formed as the top 440 of flow plug 140, to be located near the roof 305 of cooking chamber 102.

Remove part 520 can by remove sheet metal 500 opposite end a part come remove (at least partly), with The length of all parts of sheet metal 500 is shortened into the second length L2, in addition to end piece 540.End piece 540 can each self-alignment In on the same side of sheet metal 500, and the length of sheet metal 500 is remained to the length of the corresponding long edge of sheet metal 500 Spend L1.End piece 540 can have the second width W2, and the second width W2 is by the resonant element 420 that extends far from base portion 410 Length (after folding) determines.Removing part 520 may include at least some pre-foldeds close to removed end piece 540 Resonant element 515.Removing part 520 can also be limited by curvilinear cut, to be formed close to the fillet 530 of end piece 540.It removes The side opposite with end piece 540 of part 520 can be removed some parts of pre-folded resonant element 515 by cutting, from And limit tapered guide part 550.Tapered guide part 550 limits sloping edge, and row's taper resonant element 535 can fold into this Sloping edge is to limit the cone angle of taper resonant element 535.

Be appreciated that from Fig. 5 A and be removed and after all slots 510 are removed removing part 520, pre-folded it is humorous Vibration element 515 can be folded (for example, inwardly arranging along the distal end of the resonant element 515 from pre-folded by the second width W2 The line of the length of restriction).Multiple rows of pre-folded resonant element 515 including end piece 540 may be located remotely from base portion 410 and fold about 90 Degree will be located at the row's resonant element 420 of the bottom near bottom wall 310 when door 104 is closed to limit.It is removed from part 520 is removed Multiple rows of pre-folded resonant element 515 that the new edge retained later is formed can fold about 90 degree from base portion 410, be worked as with limiting Skidding or resonant element 420 near the first side wall 315 and second sidewall 320 of cooking chamber 102 will be located at when door 104 is closed. When usually having formed side row and bottom row, end piece 540 can be folded along fillet 530 and be connected (for example, passing through weldering Connect) edge arranged to base portion 410 and side.Finally, when folding the resonant element 515 of pre-folded, so that corresponding end is (such as edge The second length L2 measurement) be located at tapered guide part 550 near.Connector can be formed along tapered guide part 550 (for example, Pass through welding) with shape taper resonant element 535 in a row.

In some cases, the resonant element in order to keep the intensity of end piece 540 after folding, on end piece 540 At least one of (and in this example be two) can be the case where not exclusively cutting to the slot of end of resonant element Lower formation.It instead as shown in Figure 5A, can the cutting in end piece 540 (for example, close to the vertex of fillet 530) The slot 560 of (but the distal end for not extending completely to resonant element) is extended linearly far from base portion 410.Therefore, with setting in addition to tail At position except extremity piece 540 resonant element (each resonant element can by from base portion 410 until resonant element it is remote Linear ground cutting groove 510 and formed) it is different, slot 560 allow to be subjected to more physical strengths along bending part and substantially Do not sacrifice performance.Slot 560 can also prevent resonant element from opening during being bent around fillet 530, to ensure relative to bending The consistent interval at turning 355.If in addition opened, it may be in contact or scrape, this may damage flow plug 140 And/or damage bent corners 355.

In the exemplary embodiment, a kind of RF flow plug for oven is provided, which has can be in open position The door moved between closed position, to connect with the opening in the cooking chamber for being limited to oven.RF flow plug may include base portion The multiple resonant elements in a row formed.Cooking chamber can be limited at least partly by roof, bottom wall, the first side wall and second sidewall It is fixed.When the door is in the closed position, RF flow plug may be provided at the shop front at the part of cooking chamber.Base portion, which can be, has periphery The sheet metal at edge.Base portion can be set in the first plane for being arranged essentially parallel to the second plane locating for door.Resonant element Can towards door from first it is flat-folded go out, with limit top row resonant element, bottom row resonant element, the first side row resonant element and Second side arranges resonant element, these resonant elements are when the door is in the closed position close to the roof of cooking chamber, bottom wall, the first side It is those of corresponding in wall and second sidewall.An at least row can be folded relative to the first plane with the angle different from other rows First plane out.

In some embodiments, it may include additional optional feature, or can modify or increase features described above.It is additional Each of feature, modification or supplement can be practiced in conjunction with features described above and/or be bonded to each other.Therefore, in some embodiments In can use supplementary features, modification or supplement in it is some, all or do not have supplementary features, modification or supplement.For example, one In a little situations, base portion can have the substantially matched shape of shape with opening.In such an example, the base portion of cooking chamber and The distance between roof can be greater than between each of the first side wall and second sidewall of base portion and bottom wall and cooking chamber Distance.In the exemplary embodiment, resonant element is arranged the bottom of with, the first side is arranged resonant element and is compared with second side row's resonant element, Top row resonant element can fold out the first plane relative to the first plane at different angles.In some instances, at door When closed position, in top row resonant element, bottom row's resonant element, the first side row's resonant element and second side row's resonant element Each of in resonant element distal end can with it is corresponding in the roof of cooking chamber, bottom wall, the first side wall and second sidewall Those are substantially isometric.In the exemplary embodiment, roof is formed with the crosspoint of the first side wall and second sidewall between the two The crosspoint of right angle, bottom wall and the first side wall and second sidewall between the two forms bent corners.In some cases, base portion can To limit substantially circular turning, with correspond to bottom row's resonant element and first row resonant element and second side resonant element it Between intersection bent corners.In the exemplary embodiment, base portion can limit the turning of approximate right angle, to correspond to top The right angle of intersection between wall and the first side wall and second sidewall.In some instances, the end piece of bottom row resonant element It can be folded around substantially circular turning to correspond to bent corners.In such an example, at least one on end piece A resonant element can be formed via far from the slot that base portion extends linearly, and be arranged in the resonance at the position except end piece Element can be formed via the slot far from base portion linear incision.In the exemplary embodiment, resonant element is arranged at top row resonant element, bottom The distal end of resonant element in each of part, the first side row's resonant element and second side row's resonant element is located at the plane of opening In.

The introduction presented in foregoing description and relevant drawings is benefited from, those skilled in the art in the invention will expect Many modifications of the invention described herein and other embodiments.It will thus be appreciated that the present invention is not limited to disclosed spies Determine embodiment, and modifies and be intended to include within the scope of the appended claims with other embodiments.In addition, although front is retouched It states and describes exemplary embodiment in element and/or the context of certain example combinations of function with relevant drawings, still It should be appreciated that without departing from the scope of the appended claims, can be provided by alternative embodiment element and/or The various combination of function.In this regard, for example, from those of be explicitly described above element and/or the different element of function and/or The combination of function is also envisioned for illustrate in some appended claims.Advantage, benefit or problem is being described herein In the case where solution, it should be understood that such advantage, benefit and/or solution are applicable to some exemplary embodiments, but It may not be suitable for all exemplary embodiments.Therefore, any advantage, benefit or solution as described herein are not construed as pair Embodiment claimed is crucial, required or necessary in all embodiments or herein.Although spy is employed herein Fixed term, but they are only used for general and descriptive meaning, rather than for purposes of limitation.