CN101953645B - Baking box - Google Patents
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- CN101953645B CN101953645B CN200910166951.5A CN200910166951A CN101953645B CN 101953645 B CN101953645 B CN 101953645B CN 200910166951 A CN200910166951 A CN 200910166951A CN 101953645 B CN101953645 B CN 101953645B
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Abstract
A kind of work top baking box has the door of compartment by least four heating element heats and this compartment.At least two of heating element heater is upper element, is positioned at the place closing on compartment ceiling.Two heating element heaters are base member, are positioned at the place along compartment floor.Element described at least one is controlled to provide variable wattage, described variable wattage comprise for heating cycle at least partially, between zero energy and full power in the middle of, one or more exercisable wattage.
Description
Invention field
The present invention relates to baking box, particularly relate to a kind of with variable power heating element heater and the baking box that controls for the multi-functional user that these heating element heaters operate.
Background of invention
A kind of baking box for various culinary art and heat foods function.Such as, baking box will be used for toasting different types of bread (comprising freezing bread, bagel and Pizza), roasting cake and barbecue (grill).
Success processes above-mentioned task needs high-power heating element heater and temperature that is complicated for these and multi-functional heating element heater to control.Successively, the simple and multi-functional control of heating element heater becomes easy by user interface, and this user interface allows user to facilitate the difference in functionality utilizing baking box with the mode of safety.
The Australian CO-PENDING Provisional Application Number that the detailed construction of baking box has been included in applicant is in 2008901884, is incorporated by reference in this text and examines.
Summary of the invention
A target of the present invention is to provide a kind ofly has the baking box that four or more can be controlled to the heating element heater performing difference in functionality.
Another target of the present invention is to provide a kind of baking box with the heating element heater that can operate under two or more power settings.
Further object of the present invention is to provide a kind ofly has baking box that is easy to use and user interface intuitively, and this user interface has obvious differentiation between the baking function and other function of baking box.
Correspondingly, this baking box provides a four or more heating element heater.The mode that employing can change element power output controls these elements at least partly.
Accompanying drawing is sketched
In order to understand the present invention better, carry out reference below in conjunction with accompanying drawing, wherein:
Fig. 1 is the perspective view of the baking box according to the present invention's instruction;
Fig. 2 is the sectional view of baking box in toast bread configuration;
Fig. 3 is the sectional view of baking and banking up with earth baking box in configuration;
Fig. 4 is the sectional view of baking box in barbecue configuration;
Fig. 5 is the baking box front front details showing user interface and oven door details;
Fig. 6 is the front front details at display function of baking bread interface;
Fig. 7 is the front details that the interface portion of function is baked and banked up with earth in display;
Fig. 8 a is the schematic circuit of the baking box according to the present invention's instruction;
Fig. 8 b is another schematic circuit of the baking box according to the present invention's instruction;
Fig. 9 is the perspective details of the arrangement of five heating element heaters of baking box;
Figure 10 is the underside plan schematic diagram of the fender of top intermediary element;
Figure 11 is the side view of the arrangement described in Fig. 9;
Figure 12 (a) is quartz heating element internal coil;
Figure 12 (b) is the detailed schematic of the printed circuit board described in Fig. 8;
Figure 13 (a), (b) and (c) are according to the schematic diagram of the present invention to the AC power cycle of the element release in baking box;
Figure 14 (a) and (b) illustrate the schematic diagram can selecting AC waveform;
Figure 15 illustrates the oven temperature figure when the duration relevant to the pattern of baking and banking up with earth;
Figure 16 illustrates the oven temperature figure when the duration relevant to toast mode; With
Figure 17 illustrates the oven temperature figure when the duration relevant to several bagel pattern cycle.
Detailed description of the invention
As shown in Figure 1, baking box 100 comprises the thermally insulating housing 101 determining inner heating compartment 102.In the present embodiment, compartment 102 is entered by the door 103 with transparent front panel 104.Door 103 flatly links to the lower edge of compartment 102 along its lower limb.When door is all opened, the handle 105 of door is suitable for supporting door in the same level of shelving baking box leg 106.On the front surface of shell and the vertical panel 107 of adjacent doors 103 provide comprise figure display 108 and multiple user control user interface, it will be discussed in detail below.Interior compartment comprises three further to the relative permanent plant 109 for supporting one or more removable barbecue rack 110.The interim pending application of Australia that the CONSTRUCTED SPECIFICATION of baking box is included in applicant is numbered in the application of 2008901884 (PCT/AU2009/000465), is incorporated by reference in this text and examines.
In the embodiment as depicted in figure 1, interior compartment 102 is heated by five quartz heating elements 120.As will be explained the same, three in quartz heating element are positioned at the ceiling or top that close on compartment 102, and in described element two are positioned at ground along compartment 102 or bottom.Our preferred quartz heating element in this explanation, but should be understood that the present invention can use comprises polytype heating element heater such as stainless steel calrod (calrod, a kind of new insulated wire for the manufacture of electric cooking appliance), tungsten, halide.
In toast bread and the place needing peak power, the set of element or all or some element can full-load run.Such as, when needs bake and bank up with earth or heating-up temperature time, the set of element or some or all elements needs to transmit lower-wattage in the mode consistent with demand of such as baking and banking up with earth.This technology is suitable for such as, transmitting intermediate power in macro level (by the grade of people's perception, can seeing or experience).This means at least one section in the time can awared user, the appearance of the continuous power grade in the somewhere of this technology creation between Man Heguan.This is circulation by distinguishing over element in whole cooking cycle or configures from full power to other element power of zero energy open and close.This known existing techniques in realizing form of middle heating, but the quality of such as baking and banking up with earth food is affected due to the full power partial intensities of cooking cycle.The prior art form of middle heating produces the undesirably excessive heat radiation to expectation target temperature equally.Especially in a preferred embodiment, by reducing amplitude or " cut-out " AC waveform of AC waveform, or by omitting or delete or compress cycle of AC waveform of the power supply being supplied to heating element heater, in the circuit relevant to some or all heating element heaters (but needing not to be center upper portion element 220), use TRIAC or cycle delay or other electron component, thus can realize in the cooking time of whole (or important or viewable portion) person's of baking and banking up with earth (such as when baking and banking up with earth cake) preferred gentle, heat continuously, uniformly.By this way, at least in macroscopic view or level of perceived, element shows the actual middle power that transmission defines herein, and heating etc. very mediates for user the appreciable time---and but the full power being less than element exports is greater than zero.During cooking cycle, this actual middle power can arrange combination with full power, zero energy and other actual middle power.Actual middle power is similar with the electronic dimming of heating element heater, as in luminaire see.
As shown in Figure 2, interior compartment 102 comprises 5 quartz heating elements.The ceiling 200 of interior compartment is configured to preferably evenly toast bread.Middle body 201 relatively flat of ceiling.Curvature is provided, after 202 posterior member 203 and before 204 anterior member 205 in ceiling.Front curvature 204 is to downward-extension towards the little riglet 206 lower than central plane region 201.Short hypotenuse section 207 extends in compartment through the top edge of opening, stops at bar 206 place.Hypotenuse part 207 makes user more easily enter compartment interior.
Fig. 2 is equally exemplified with the interior floor 208 of the compartment protected by removable crumbs pallet 209.Crumbs pallet 209 to be included in before front bottom heating element heater 210 and bending reflecting part after bottommost heating elements 211 below equally.Crumbs pallet 209 bends between reflecting part 213 preferably flat in frontal arc reflecting part 212 and rear end.
The same with by what explain further, the optimization of the multi-functional and performance of baking box is by providing five heating element heaters and using under operating in different watt according to pattern and realize.(in less or more economical baking box version of the present invention, optional center upper portion element can be omitted).In this example, assuming that this equipment runs under the AC of 120V.Will be understood that the value represented with watt needs correspondingly to adjust in these examples when using other line voltage.Can see that in the example that Fig. 2 provides baking box has the upper group of three heating element heaters, it comprises top anterior member 205, center upper portion element 220 and upper rear end element 203.Front-end and back-end, top element preferably as one man operates.In certain embodiments, front-end and back-end, top element 205,203 is 450 watts, and Central element 220 is 550 watts.In other embodiments, by installing the element of 520 watts in top front position 205, installing 380 watts of elements in upper rear end position 203 and install 550 watts of elements in center upper portion position 220 and realize better performance.In a preferred embodiment, bottommost heating elements 210,211 is 450 watts and as one man operates.Will explain, center upper portion element 220 and base member 210,211 can be blocked.In especially preferred embodiment, base member and upper element (but needing not to be central member 220) are that Flow Control or TRIAC control are to change the thermal output of element further.In order to the consideration (and being explained by composition graphs 8) of safe addressing and adjustment, preferably impossible is inoperation baking box center upper portion element 220 while operation base member 210,211.When center upper portion element 220 is opened, base member 210,211 is closed.When base member 210,211 is opened, center upper portion element 220 is closed.
toast bread configures
As shown in Figure 2, by using four in five heating element heaters 121 and achieve the unified baking of multi items bread fast.
In the figure 2 example, except center upper portion element 220, all baking box elements are all opened.Other four elements 205,203,210,211 all work with maximum watt.This creates maximum heat radiation for effectively toasting.When being used as baking box, baking box frame 110 is positioned at centre position.As proposed in Figure 5, on the relevant position 501 in oven door or proximity print off and use the explanation of shelf in centre position.
In a preferred embodiment, baking box uses and is specified or power limited limited maximum available watt by this locality.At the power that America & Canada is 1800 watts, these power equalizations are common between top and base member.In Australia, this value is 2400 watts.
bake and bank up with earth configuration
As shown in Figure 3, baking box 100 can be used as baking box or convection oven.When being used as baking box, do not use center upper portion heating element heater 220 but other heating element heater 205,203,210,211 all will use.Under this configuration or pattern, frame 110 is preferably placed on nethermost stand.Although according to the control operation of user on control panel 107, it may be closed, electric fan 301 is still preferably set to default conditions "ON".In especially preferred embodiment, by reducing amplitude or " cut-out " this AC waveform of adding to the AC waveform of heater element power, or by omitting or delete or suppress to add to cycle of AC waveform of heater element power, in the circuit associated with bottommost heating elements (but needing not to be center upper portion element 220) with top, use TRIAC or cycle delay or other electron component, the preferred mild heat of baker's (such as baking and banking up with earth cake) can be realized.This actual middle power form can whole cooking cycle use continuously or and other actual in the middle of zero energy interval or its combine and intermittently uses (such as mutually, use total power in the time at the beginning of the regenerator section of cooking cycle), with by oven heat to correct cook temperature.
barbecue or barbecue configuration
As shown in Figure 4, baking box 100 of the present invention can be used as barbecue or meat roasting equipment.Under this configuration or pattern, frame 110 is preferably located in the superiors of cavity 102.When user selects barbecue or barbecue cycle, whole three upper elements are all used, and are preferably in full power setting.But any and all upper elements as one man can be controlled to provide more accurate power transmission by triac (triac).The same as previously mentioned, center upper portion element can be omitted in less or more economical embodiment.As will be further explained, preferable mask Your Majesty portion central member 220 (if present).Correspondingly, perforated metal shielding 401 is inserted between element 220 and the food below it.In a preferred embodiment, the position of frame 110 in barbecue is higher than the position in toast bread.Above frame, the use of three elements helps the even propagation providing heat.If only have two heating element heaters, baking box has the cool-point towards frame central authorities.The use of third element 220 makes the transmission of uniform heat become possibility.The use of perforation shielding allows some direct radiation to pass therethrough.Such as melt on baking box in cheese in special culinary art configuration or pattern, by the intensity using the supply (as described above) of triac and actual middle power to reduce element, especially forward direction and below upper element, thus such as baking box was not burnt before cheese melted.Further details about difference culinary art pattern will provide hereinafter.
user circle and
User interface panel 107 is provided on before baking box 100.User interface panel comprises graphics display area 502 further and various user operation controls 503.In a preferred embodiment, user controls to be located immediately under figure display 502.
Graphics display area 502 comprises the culinary art mode list 504 of vertically arrangement and tells user the mobile arrow of lectotype or indicator 505.In the 5 embodiment of figure 5, pattern comprises toast bread, roasting bagel, cures, toasts, barbecue, roasting Pizza, flapjack do, reheat and be incubated.Hereafter will explain different mode and function thereof.Graphics display area 502 comprises toast bread shade/toast shade (toastshade) selector marker 506 equally.Indicator 506 shows schematically showing of toast bread, one bright 507 and one dark 508.The quantity that user selects in this example is seven and user selects to be combined with mobile arrow or indicator 510 and provide the small icon 509 of the visual feedback of selected toast shade to user.Viewing area 502 comprises top alphanumeric part 511 and bottom alphanumeric part 512 further.Top alphanumeric part 511 be used to indicate such as user-selected toast shade digital value (when selecting toast mode) or, oven temperature while baking and banking up with earth function (such as when select).Bottom alphanumeric part 512 can be used for breading slices number (when user specifies toast mode), Pizza size or cooking cycle remaining time (such as when user selects to bake and bank up with earth pattern) selected by indicating user.
User-operable controls 503 to be provided to user and carries out selecting or the shortcut of prioritizing selection, and provides the input selected about user priority in various pattern and pattern to baking box processor.Importantly, by being arranged in vertical queue and the initial pattern that sets in vertical list 504 of preferred rotation scale 513 under list 504 and can selecting.The rotation of pattern scale 513 changes the function of baking box, and mobile arrow 505 indicates institute's lectotype.In this example, start/cancel button 514 to be located immediately under viewing area 502 and to close on pattern scale 513.Pattern scale 513 one of allowing user to select in multiple different mode or function.But, these patterns each in, user can represent different prioritizing selection.Therefore, two maximum rotate select scale be temperature/darkness control scale 515 and below it time/stowing dimensions scale 516.Top scale 515 allows user to adjust cooking temp, such as the default temperature of adjustment up or down and any concrete pattern association.When unit is in toast mode, same scale 515 allows user to select selected shade or toast darkness.When using scale 513 to have selected toast mode, top or temperature/darkness select the rotation of control 515 to cause the suitable movement of arrow or indicator 510.Bottom or time/before cooking cycle or originally or period adjustment selected time or the default time of being specified by unit microprocessor rotation that stowing dimensions controls 516 allows user.But, when user-selected function is for roasting Pizza or function of baking bread, time/rotation of stowing dimensions scale 516 causes changing about the bottom alphanumeric indicator 512 of stowing dimensions (such as toast sheet number or Pizza size).In a preferred embodiment, temperature/darkness scale 515 and time/the equal and position of stowing dimensions 516 size is closed on.All may be operated to adjust intercycle in cooking cycle.Interface panel 107 comprises button equally or control 520 is selected for user or do not select convection fan feature.Convection fan feature preferentially only can obtain in AD HOC.Interface panel 107 comprises the control to shown temperature any switching laws or button 521 that allow user from Fahrenheit temperature to Celsius temperature or from Celsius temperature to Fahrenheit temperature equally.Provide frozen food equally to control or button 522.As will be described, the prioritizing selection of frozen food allows whole cooking time to be take frozen food (when in pattern during this feature enable) into account.
Describe the mode Examples of information of display in graphics display area 502 in fig. 5 and fig..As shown in Figure 6, feature list 504 is combined with indicator 505 to inform that user's toast mode is selected.Alphanumeric region, top 511 and symbol show 506 and are combined and have selected darkness/shade 4 with indicating user.Alphanumeric region 512, bottom indicating user service time/stowing dimensions scale 516 selected four.Once pattern and preferentially being set up, user presses beginning/cancellation button 514 and also correspondingly shows change.Result shows, and especially bottom alphanumeric viewing area 512 shows the rusk number remaining cooking time 601 instead of selected.If user has selected frozen food to control button 522 equally, then bottom alphanumeric viewing area 602 will inform that user additionally adds to the time in toast bread cycle.Graphic icons in viewing area 502 and word " freezing " 605 provide by the preferential feedback of the frozen food used selected by frozen food control or button 522 to user equally.
As shown in Figure 7, when need user-selected bake and bank up with earth pattern time, the default temperature that Fahrenheit is 350 degree is presented in alphanumeric viewing area, top 511, and default time is presented in lower area 512 for such as 30 minutes.In a preferred embodiment, the use of baking and banking up with earth function causes the acquiescence of convection current feature select and indicated in viewing area by icon and/or text 701 equally.
circuit
Fig. 8 a and Fig. 8 b shows the electronically controlled typical schematic circuit 800 being used for executive component and fan.In this example, oven function is controlled by integrated circuit 801.In this example, for base member 802, middle top layer element 803, fan 804 and front upper part and upper back element 805 provide independent electronic circuit.Overload or storm protection electronic circuit 806 is provided through input power wire.Electronic circuit 806 comprise optional heat fuse 840, noise filter capacitor 841, absorbed power surge rheostat 807 and lost efficacy as rheostat 807 time the PCB fuse 808 of standby.In the electronic circuit 802 associated with base member, protect TRIAC 807 by fin 858.In the control of two bottommost heating elements 809,810 with under regulating, TRIAC is used as electronic relay and current controller (such as transmitting actual middle power).Resistance and electric capacity 811 are connected and are positioned across the output of TRIAC 807, to absorb issuable high-frequency noise from the operation of TRIAC.Triac 807 can come to be used as to switch base member open and close and regulate their electric current and temperature to export as required in the following manner, repeatedly (be actual middle power, or alternate manner) " cut-out " or restrain AC waveform to reduce effectively or average watt in the method such as a second.The electronic circuit 805 of upper element is similar to the electronic circuit of base member 802.The electronic circuit 803 of middle upper portion element 820 does not use triac in the present embodiment, but can use.Replace or with triac or other current regulator the same, its use relay 821 in case between top intermediary element and the operation of a pair base member 809,810 produce switch (toggling).Therefore, operation middle upper portion element 802 and base member 809,810 become possible (in this configuration) simultaneously.This optional handoff features eliminates the needs to current insurance silk.The general characteristics of such as 20-60 watt fan is operated by triac 831 and does not need high filter.
The electro-hot regulator 870 being arranged in baking box provides temperature feedback information to processor 801.Therefore processor can compensate based on the baking box internal temperature when pressing beginning button 514 or regulate the cooking time that (by reducing) calculates.This occurs in automatic function such as by the toast bread of explanation, bagel and Pizza.Electro-hot regulator 870 be preferably placed at thin aluminium compacting shell or baking box after or side surface upper part bubble after, and be embedded in fin paste in.
Another interchangeable circuit is described in Fig. 8 b.In this example, use single triac 807 or other current regulating devices to control top intermediary element or base member.This exports 880 to relay 821 by the tune amount sending triac 807 and completes.Therefore the operation of relay can transmit tune amount and export base member 809,810 or top intermediary element 820 (but being that base member and top intermediary element are whole) to.
element and shielding
As shown in Figure 9, each in five quartz heating elements of baking box is all subject to protection to prevent accidental destruction.Such as, front upper part and upper back element between a pair stainless steel bar 903 and above.Top intermediary element 904 is subject to the physical protection of radiation shield 905.Shielding 905 is made of metal and shape is " U " shape or arcuate channel usually.As Figure 10 better shows, the length along shielding 905 provides various perforation 1000.Perforation 1000 is provided in three lengthwise rows 1001,1002,1003.Along row 1001, the 1003 equidistant and equidimension usually at shielding edge 1004, and only provide the optimum module of the radiant energy intensity sent by heating element heater.In the example of Figure 10, the hole dimension of middle row 1002 is equal but spacing is irregular.Center stack 1005 interval of boring a hole when near shielding center is larger.Comparatively middle perforation 1005 spacing are nearer and preferably all equidistant for the external perforation 1006,1007 of middle row.Therefore, the middle body of heating element heater is more than two end shields.This prevents from forming focus below the centre of top intermediary element 905.
Due to base member export radiation and convection current in conjunction with effect, have devised special shielding, to provide, the focus associated with base member also eliminated to the physical protection of element.As shown in figure 11, bottommost heating elements 1101,1102 is positioned at below adjacent stainless steel bar 1103 and side.In addition, base member 1101,1102 is subject to the physical protection of oppositely " U " shape, imperforate shield 1104.In this example, the shielding 1104 of base member be positioned at each element upwards diameter projected on and within.Inclination shielding 1104 is so that a bottom rear or tail lateral edges 1105 compare top forward edge 1106 more near adjacent elements.
Will be understood that under the restriction of relatively little baking box compartment, stride across the heating element heater that its length produces consistent heat and produce temperature distribution by uneven compartment.Especially about shorter cooking time, the operation of homogeneous heating element heater produces the temperature higher than the temperature of close sidewall between in an oven.This crag-fast problem is solved by the gradient or spacing that change quartz heating element interior loop with the disclosed form of Figure 12 (a).As shown in FIG., the Inside coil 1200 of quartz heating element can comprise the region having different gradient or rotate spacing along its length.In the example of Figure 12 (a), the length of coil 1200 can be six parts 1201,1202,1203,1204,1205 and 1206 being further divided into equal length substantially by thinking.Most external part 1201,1206 has minimum or the meticulousst gradient (between adjacent rotation the most closely spacing).Central authorities' two parts 1203,1204 have maximum spacing and have equal gradient between adjacent turn.Mid portion 1202,1205 has and is less than middle body 1203,1204 but than the rotation spacing of exterior section 1201,1206 larger (larger or more coarse gradient).
thoroughly discussing of toast bread baking box pattern
Toast mode (toastmode)
User can select toast mode by using forestland scale 513.Toast mode is tended to use frame 110 in centre position.In a preferred embodiment, top intermediary element 220 does not use still other element all to use.Do not use fan, and full power (preferably local 1800W or 2400W allowed) is sent to residue four elements.Service time/stowing dimensions scale 516 receives user's preferred sheet number between 1 to 6.Default setting is preferably four.Use aforementioned watt, baking time change between about 165 seconds/sheet (arranging in minimum adustion) to about 420 seconds (6 maximum adustion are arranged).Close convection current feature, and circuit does not allow user to activate convection current feature.When selecting frozen food function with frozen food button 522, extra time is added to nominal cycle time.In an illustrative manner, a slice or two panels increase by 15 seconds.3 or 4 increase by 20 seconds.5 increases increase by 35 seconds in 30 seconds and 6.
Electro-hot regulator 870 in baking box can provide oven temperature feedback information, and it allows processor 801 to compensate baking box internal temperature by reducing required cooking time.
Bagel pattern (bagelmode)
When selecting bagel pattern, cooking cycle is subdivided.The Part I of cooking cycle (such as 2 points and 30 seconds) adopts the power culinary art of 1800 watts.Thereafter, reduce culinary art power, such as, be down to 1450 watts.In the Part I in cycle, use the whole elements except the intermediary element of top.Thereafter, all three upper elements except base member are used.In bagel pattern, give tacit consent to four and 4 (except 7) are set with adustion.Change between cooking time from about 205 seconds (1 bagel half (begalhalf) is in minimum set) to about 375 seconds (6 bagels half are arranged in the highest adustion).When selecting frozen food parameter, be added to normal cooking time extra time.Such as, 1 bagel false add 25 seconds and often increase a bagel half and increase by 5 second time, thus when selection 6 or 6 bagel halfs increase by 50 seconds additional periods.When using bagel function, preferably closing convection current feature and stoping and selecting this feature.
Electro-hot regulator 870 in baking box can provide oven temperature feedback information, and it allows processor 801 to compensate baking box internal temperature by reducing required cooking time.
Bake and bank up with earth pattern (bakemode)
When selecting to bake and bank up with earth pattern, maximum cooking time is about 2 hours.In the pattern of baking and banking up with earth, convection fan is defaulted as "ON".The preferred "Off" of top intermediary element and the power being altogether about 1440 watts is evenly sent to other four elements.Because convection fan is generally "ON", so total power consumption can reach 1500 watts.In the pattern of baking and banking up with earth, default temperature is 350 degrees Fahrenheits (being transmitted at least in part by actual middle power alternatively), and to give tacit consent to cooking time be 30 minutes.These two values can be adjusted subsequently by user, can be adjusted even in the cycle.In the pattern of baking and banking up with earth, frozen food selector controls to lose efficacy, and the symbol 605 of display glimmers to indicate and done an incorrect selection.In certain embodiments, for all cooking cycles or part cooking cycle, power transmission may be partial to base member.When pressing beginning button in the pattern of baking and banking up with earth, baking box is preheated until reach selected temperature.Preheating (PREHEATING) is flicker in display, and a section audio indicates baking box to reach selected temperature subsequently, and timer starts countdown automatically.
Baking pattern (roastmode)
When selecting baking mould formula, preferred power reaches all heating element heaters except the element of top closed center equably.When pressing beginning button in baking pattern, baking box is preheated until reach selected temperature.Preheating (PREHEATING) is flicker in display, and a section audio indicates baking box to reach selected temperature subsequently, and timer starts countdown automatically.The power adding to element is 1440 watts, and the use of 60 watts of convection fans causes total power consumption to be about 1500 watts.Base member can be partial at cooking cycle internal power all or in part.In baking pattern, default temperature is 350 degrees Fahrenheits (being transmitted at least in part by actual middle power alternatively) and acquiescence cooking time is 60 minutes.These two values can by user's adjustment before the cycle or in the middle of the cycle.The maximum time that baking pattern allows is 2 hours.In baking pattern, frozen food functional failure and displaying symbol 605 glimmer to indicate and have done an incorrect selection.In a preferred embodiment, convection fan is defaulted as "ON".
Barbecue pattern (broilmode)
It is preferred that serviceability temperature/darkness scale 515 can arrange three different barbecue.If user arranges barbecue for (such as) 300 degrees Fahrenheit, then the power being sent to each upper front and upper back element is set to 310 watts.Top intermediary element by by TRIAC loop cycle or relaying with the mean power reaching about 380 watts.This causes whole power transmission to be approximately 1000 watts.Default time is set to 15 minutes and maximum time is 20 minutes.Frozen food priority acccess control is malfunctioning.Acquiescence convection current feature " closedown " but user can use convection control 520 to activate this feature.If select convection current feature, cooking time can not be adjusted by microprocessor.
Barbecue is set is set to (such as) 400 degrees Fahrenheit if user's serviceability temperature/darkness controls 515, then only use upper element.Front and back element is 390 watts and top intermediary element circulates with the mean power obtaining 470 watts.This causes mean power to be transmitted as 1250 watts.Acquiescence cooking time is 15 minutes and maximum time is 20 minutes.Frozen food and convection current characteristic manipulation with arrange as user when barbecue is 300 degrees Fahrenheit identical.
User can select the 3rd prudent (discreet) barbecue temperature for (such as) 450 or 500 degrees Fahrenheit equally.Therefore, will be understood that effectively proposing three kinds of barbecue to user is arranged, it is rudimentary barbecue, intermediate barbecue and senior barbecue effectively that described three kinds of barbecue are arranged, and each difference display by temperature referred to.This display can be configured to therefore indication example as low (Low), in (Medium) or high (High), instead of actual temp.In high barbecue is arranged, use whole three upper elements and eachly all to use under maximum power level.Do not use base member.Therefore total delivering power is about 1450 watts.Acquiescence and maximum time, frozen food and convection current feature are processed to arrange identical mode with other barbecue.
Pizza pattern (pizzamode)
When selecting Pizza pattern, user service time/stowing dimensions scale 516 selects multiple different Pizza size (diameter).Such as, user can select from 6 inches, 8 inches, 10 inches, 12 inches or 13 inches of Pizza sizes.12 inch dimension are preferred default size.Acquiescence cooking time without the lower 12 inches of acquiescence Pizzas of baking box preheating is 15 minutes.Cooking time can change, such as, from 15 minutes 30 seconds that within 12 minutes, change to 13 inches of Pizzas of 6 inches of Pizzas.The frozen food of Pizza pattern arranges and is defaulted as "ON".If user selects to make frozen food arrange inefficacy by pressing frozen food button 522, then cooking time adjusts downwards, such as 2 minutes.In Pizza pattern, convection current is defaulted as "ON".When in Pizza pattern, top intermediary element is closed but other element is opened and is equally powered.In a preferred embodiment, provide 360 watts (being transmitted at least in part by actual middle power alternatively) to each element, and due to 60 watts fan open, total power consumption is approximately 1500 watts.The maximum cooking time allowed in Pizza pattern is 40 minutes.Acquiescence cooking temp in Pizza pattern is 450 degrees Fahrenheits.
Electro-hot regulator 870 in baking box can provide oven temperature feedback information, and it allows processor 801 to compensate baking box internal temperature by reducing required cooking time.
When under Pizza pattern, pressing starts button, then baking box is preheated until reach selected temperature.Preheating (PREHEATING) is flicker in display, and a section audio indicates baking box to reach selected temperature subsequently, and timer starts countdown automatically.
Flapjack dry model (cookiesmode)
When user selects flapjack dry model, top intermediary element is closed but other element is applied the power of about 360 watts equably.When comprising convection fan, total power consumption is about 1500 watts.The acquiescence cooking temp of biscuit is 350 degrees Fahrenheits (being transmitted at least in part by actual middle power alternatively) but user can revise this temperature.At flapjack dry model, the acquiescence time of baking and banking up with earth is 12 minutes (arriving selected cooking time after baking box preheating).Be typically 5 minutes preheating time.If user selects frozen food preferential, then cooking time adjusts upward about 2 minutes.
When pressing beginning key at flapjack dry model, baking box preheating is until reach selected temperature.Preheating (PREHEATING) is flicker in display, and a section audio indicates baking box to reach selected temperature subsequently, and timer starts countdown automatically.
Heating mode (reheatmode) again
When user selects heating mode again, top intermediary element is closed and other element each is applied to be about the power of 360 watts equably.Because convection fan is defaulted as " unlatching ", so total power consumption is about 1500 watts.In heating mode again, acquiescence cooking time is 15 minutes and be maximumly set to 1 hour.In heating mode again, default temperature is 350 degrees Fahrenheits (being transmitted at least in part by actual middle power alternatively).
Holding mode (keepwarmmode)
When user selects holding mode, top intermediary element is closed and other element each is applied to be about the power of 360 watts equably.Acquiescence holding temperature is 160 degrees Fahrenheits and acquiescence temperature retention time is 60 minutes.Maximum temperature retention time is 2 hours.In holding mode, frozen food function is disabled.But convection current is defaulted as closes can be activated by user.
Electro-hot regulator 870 in baking box can provide the oven temperature feedback information allowing processor 801 to compensate baking box internal temperature.
As shown in Figure 12 (b), zero crossing sensor circuit 1202 can be comprised see printed circuit board (PCB) 1201 disclosed in previous Fig. 8.Zero crossing sensor 1202 uses with the diode of suitable resistance and electric capacity and transistor arrangement to provide the integrated circuit type controller 1204 of signal 1203 to baking box when the 12AC power supply wave shape being supplied to PCB reaches zero volt at every turn.This provides signal message to controller 1204, can determine the frequency of input power from this information.Given zero cross signal, controller 1204 can with rear drive TRIAC and interlock circuit to operate the waveform of the AC power supplying one or more dimmed heating element heater, that is, be suitable for transmitting actual middle power.Cause schematically showing of the AC waveform shape of dimmed or actual middle power 1205, as example in Figure 13 with Figure 14 by PCB1202 feed element the same.
As shown in Figure 13 (a), during toast bread, the waveform of AC power adding to upper element 1301 and add to base member 1302 be unified and ordinary representation element in obtainable peak power any preset time.In toast mode, advantageously provide maximum available power so that the quick adustion of bread and not drying up.
In Figure 13 (b), exemplified with such as adding to upper element 1303 and the waveform adding to base member 1304 during the pattern of baking and banking up with earth.As Figure 13 (b) advise, followed by what comprise seven full and AC sets of waveforms of non-interruption waveform 1305 the interruption being equivalent to two waveform length 1306, reduce power stage to zero at this intercourse controller 1204.Therefore in the duration of nine continuous wave length, seven continuous wavelengths are only provided.In a preferred embodiment, upper element uses the scheme 1304 of the program 1303 and base member to have eight continuous full power waveforms 1307 and sustained interruption immediately for being a wavelength in power 1308.Correspondingly, the base member comparatively more actual middle power of upper element generation.
As Figure 13 (c) advise, in baking pattern, base member is applied in continuous peak power waveform 1309.Same in this baking pattern, the waveform of upper element 1310 comprises seven continuous AC cycles 1311 and is the sets of waveforms at the interval of the interruption in power 1312 being equivalent to three wavelength subsequently.Correspondingly, base member full power operation and upper element receives only 7 in every 10 cycles of AC power.
Illustrate in fig .15 with the typical cooking cycle of baking and banking up with earth pattern association.As advised in this figure, (cavity that is actual or that infer) of baking box temperature is from room temperature 1501 and evenly rise until the temperature that the electro-hot regulator of baking box detects equals the target baking box centralised temperature 1502 of baking box 72a.In this example, target temperature 1502 is 210C.During warm-up phase 1503 top and base member in practice between power place open.In this example, upper element uses 720W and base member consumes 720W, and the general power wherein provided is 1440W, such as, provides gentle heat and observes adjustment demand.When the baking box cavity temperature measured reaches target temperature 1504, top and base member cycle open and close simultaneously, and provide average central temperature, along with the past of time, it equaled target temperature 1502.
As shown in figure 16, the typical toast bread cycle starts from being measured by electro-hot regulator the baking box cavity temperature of (deduction) is room temperature 1601.During toast bread, two upper elements and two base member are in the total power transmission of 1800W altogether until the first toast bread end cycle 1602.Determined the duration in the first toast bread cycle 1603 when considering user and relating to the predetermined way of the color of toast sheet number (baking box loading), initially baking box cavity temperature and user's selection or the input of darkness level by the microprocessor of baking box.The figure of Figure 16 shows the decline appearing at the baking box cavity temperature when roasting toast is opened and removed to door equally.In this example, the second toast bread cycle 1605 started from the initial baking box cavity temperature 1606 higher than room temperature.The culinary art power of 1800W is provided this second round equally, transmits full power to two top and two base member.Full power phase lasts to the baking box cavity temperature in this toast bread cycle reaches default being compiled into the first threshold in microprocessor.In this example, first threshold temperature is 210C.When exceeding first threshold, to the power reduction of two tops and two base member to general power 1620W, this general power decile between top and base member.The duration in the toast bread cycle that the second user starts is determined by the microprocessor of baking box, and in predetermined form, consider the darkness that the initial temperature of baking box, the bread number (baking box loading) of user's needs and user require or color grade.The power phase 1606 of this reduction continues to baking box centralised temperature and reaches the grade being just less than Second Threshold 1607.In this example, Second Threshold is 250C.Just before Second Threshold temperature, upper element is start in the time interval between 5 to 20 seconds to open and close in scope simultaneously, to keep baking box centralised temperature lower than Second Threshold.Like this, prevent transition baking toast in hot baking box and still provide emittance to a certain degree to continue bread baking or coloring process simultaneously.
The figure of Figure 17 is exemplified with bagel pattern aspect.Cook bagel in bagel pattern and occur in the time period 1701 determined by microprocessor, in preassigned pattern, consider to cook bagel number (baking box loadings), initial temperature (being initially room temperature) and user requirement color or darkness level.Cooking cycle 1702 first bagel cooking stage occur about 150 seconds and period full power be sent to two upper elements and two base member.This provide peak power cooking stage and transmit 1800W.Base member is closed and upper element cooking in conjunction with power 1440W is lasting when using third element with increase at the end 1703 (about 150 seconds) of first stage.This second stage continues to the end of period 1 1705.The figure of Figure 17 illustrates subsequently by opening oven door and therefrom shifting out the decline of the baking box centralised temperature 1706 that bagel causes.In this example, the second bagel baking cycle is from the temperature higher than room temperature 1707.The starting of second round causes the stage similar to the first stage of period 1 1702, that is, about 150 seconds and period two tops and two base member transmit 1800W power altogether, that is, upper element transmits 900W power to base member centering often pair.In the predetermined way considering initial baking box centralised temperature 1707, baking box load and user-selected darkness, the duration of the second bagel baking cycle is determined by microprocessor equally.3rd bagel baking cycle is shown as from initial temperature 1708 place again higher than the second baking cycle starting point.But entreat temperature to reach in the bagel pattern baking cycle of predetermined threshold 1709 in an oven, base member is closed and is used the 5th baking box element to make upper element continue to cook with power 1440W.Therefore, the first stage 1710 of this period 3 is shortened, and when reaching threshold temperature 1709, this first stage 1710 ends.In this example, threshold temperature is 210C.When cooking cycle is long, such as when baking box loading is very high and darkness is set to high, every 5-20 is closed circulation one cycle to keep baking box centralised temperature lower than the second predetermined threshold 1711 from reaching second by three upper elements (if or only having two, two upper elements).In this example, Second Threshold 1711 is 250C.
Although the present invention is disclosed with reference to particular explanation details, be to be understood that this is only that way of example provides and not as the restriction of scope and spirit of the present invention.
Claims (19)
1. a work top baking box, comprising:
Interior compartment;
The door of described compartment;
Be upper heating elements, be positioned at the first heating element heater of the ceiling closing on described compartment and the second heating element heater;
Be bottommost heating elements, be positioned at the 3rd heating element heater along the floor of described compartment and the 4th heating element heater;
Additional slender acanthopanax thermal element between described upper heating elements, described slender acanthopanax thermal element has the maximum wattage higher than described upper heating elements;
Be connected to the control module of described first heating element heater, the second heating element heater, the 3rd heating element heater, the 4th heating element heater and slender acanthopanax thermal element; Described control module operates one or more heating element heater to provide variable wattage, described variable wattage comprise for heating cycle at least partially, the one or more exercisable wattage of centre between zero energy and full power;
Be connected to the user interface of described control module, wherein once interface described in user operation, then from one or more predetermined baking box pattern, select baking box pattern;
Described first heating element heater, the second heating element heater, the 3rd heating element heater and the 4th heating element heater are controlled to provide variable wattage according to selected baking box pattern by described control module; And
Wherein said control module is independent of the described slender acanthopanax thermal element of described upper heating elements operation; And
Wherein said control module not to operate described slender acanthopanax thermal element while the described bottommost heating elements of running, thus when be no more than described work top baking box can peak power, enable the running of described upper heating elements and described slender acanthopanax thermal element and the running of described upper heating elements and described bottommost heating elements.
2. baking box according to claim 1, wherein:
In the operation of described baking box, slender acanthopanax thermal element is controllable but does not all as one man operate with described upper heating elements in each mode.
3. baking box according to claim 1, wherein:
Described bottommost heating elements is regulated to change thermal output by TRIAC.
4. baking box according to claim 1, wherein:
By using four in five described heating element heaters with its maximum wattage and not using described slender acanthopanax thermal element and toast with realizing fast.
5. baking box according to claim 4, wherein:
When toast bread, described baking box can transmit maximum allowable power from power available.
6. according to the baking box in claim 1-5 described in any one claim, wherein:
Described slender acanthopanax thermal element is protected by radiation shield physics;
Length direction along described shielding provides various perforation;
Described perforation is from one end to other end irregular spacing, so that the middle body of described slender acanthopanax thermal element is comparatively shielded at two ends more.
7. baking box according to claim 6, wherein:
Described bottommost heating elements have to be positioned on each heating element heater diameter projected upwards and within shielding.
8. baking box according to claim 6, wherein:
Described heating element heater is each quartz heating element all with inherent coil;
Along coil length direction, coil has the district of different gradient;
Compared with between the adjacent turn of exterior section, there is larger spacing between the adjacent turn of middle body.
9. baking box according to claim 6, wherein:
The central portion relatively flat of described ceiling and curvature be provided in described ceiling, be positioned at one of described upper heating elements below and described upper heating elements another before.
10. baking box according to claim 6, wherein:
The interior floor of described compartment is protected by the removable chip pallet after the front and rear bottommost heating elements of front bottommost heating elements with bending reflecting part.
11. baking boxs according to claim 1,
Wherein said user interface comprises the multiple user-operables being connected to described control module and controls, wherein said multiple user-operable controls to comprise: the first operationally relevant to select operating mode input element, operationally like the second relevant input element to selecting concrete pattern indicate cooking temp or cook intensity, and operationally to select to indicate the concrete pattern of cooking time or cooking quality to like the 3rd relevant input element; With
Wherein said user interface comprises and is connected to described control module to indicate the display module of selected operator scheme.
12. baking boxs according to claim 11, wherein said display module comprises
First indicating characteristic of the designator of the selected operator scheme of display;
Second indicating characteristic of the designator of the selected concrete pattern hobby of display instruction cooking temp or culinary art intensity; With
3rd indicating characteristic of the designator of the selected concrete pattern hobby of display instruction cooking time or cooking quality.
13. baking boxs according to claim 12, wherein said first input element is positioned at and is vertically aligned in described first indicating characteristic; And wherein said second input element and described 3rd input element are about described second indicating characteristic and described 3rd indicating characteristic vertical orientation.
14. baking boxs according to claim 11, wherein said control module is suitable for display module described in initial configuration to propose to indicate concrete pattern hobby selected by the acquiescence of concrete pattern hobby and instruction cooking time or cooking quality selected by the acquiescence of cooking temp or culinary art intensity.
15. baking boxs according to claim 11, wherein said first input element, described second input element and described 3rd input element are each is all rotate scale input element.
16. baking boxs according to claim 11, wherein said control module independently controls the thermal output of described one or more heating element heater by selectively suppressing to be applied to the AC wave shape cycle of described one or more heating element heater according to selected operator scheme.
17. baking boxs according to claim 11, wherein operator scheme can be selected from the group comprising following pattern: toast mode, bagel pattern, bake and bank up with earth pattern, baking pattern, barbecue pattern, Pizza pattern, flapjack dry model, again heating mode and holding mode; Wherein said display module display is used to indicate the removable designator of selected operator scheme.
18. baking boxs according to claim 12, wherein operator scheme can be selected from the group comprising following pattern: toast mode and bagel pattern; Wherein said display module display is used to indicate the removable designator of selected operator scheme, and wherein
When as described in indicated by the first indicating characteristic, selected operator scheme be toast mode or bagel pattern time, described second input element is operationally relevant to the darkness of the selection indicated by described second indicating characteristic, and described 3rd input element is operationally relevant to multiple parts of the selection indicated by described 3rd indicating characteristic; And
Wherein during according to the process of selected operator scheme, the designator of described 3rd indicating characteristic display instruction residue cooking time.
19. baking boxs according to claim 11, wherein said multiple user-operable controls to comprise further: operationally like the 4th input element that pattern is associated with selection frozen food, cooking time can be adjusted to consideration frozen food for making described control module by it.
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| CN200910166951.5A CN101953645B (en) | 2009-07-16 | 2009-07-16 | Baking box |
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| CN200910166951.5A CN101953645B (en) | 2009-07-16 | 2009-07-16 | Baking box |
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| CN101953645B true CN101953645B (en) | 2016-01-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2013267042B2 (en) * | 2013-12-05 | 2019-07-25 | Newell Australia Pty Ltd | Toaster |
| AU2015203481A1 (en) * | 2014-06-24 | 2016-01-21 | Shriro Australia Pty Limited | Oven element controller |
| CN105125098B (en) * | 2015-10-09 | 2017-12-19 | 珠海格力电器股份有限公司 | Oven and control method and device thereof |
| CN107361655B (en) * | 2016-05-11 | 2019-07-02 | 北京小焙科技有限公司 | A kind of control method of output power, device and electric oven |
| CN206534553U (en) * | 2016-11-25 | 2017-10-03 | 广东新宝电器股份有限公司 | Oven chamber of rapid baking toaster |
| CN107374390B (en) * | 2017-08-28 | 2023-07-21 | 广东美的厨房电器制造有限公司 | Electric oven |
| CN108354462A (en) * | 2018-01-17 | 2018-08-03 | 广东美的厨房电器制造有限公司 | Control method and device, the oven of oven power |
| CN110584469B (en) * | 2018-06-13 | 2022-06-28 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking appliance and control method and device thereof |
| US11737467B2 (en) * | 2020-04-02 | 2023-08-29 | Automation Tech, LLC | Method for cooking in a modular cooking appliance |
| CN112256068B (en) * | 2020-10-09 | 2021-11-12 | 珠海格力电器股份有限公司 | Cooking control method and cooking device |
| US12035725B2 (en) | 2022-12-12 | 2024-07-16 | Sharkninja Operating, Llc | Grill systems |
| US12070042B2 (en) | 2022-12-12 | 2024-08-27 | Sharkninja Operating Llc | Grill systems |
| US12035845B1 (en) | 2023-04-26 | 2024-07-16 | Sharkninja Operating Llc | Systems and methods for cooking pizza |
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| US6781097B2 (en) * | 2001-12-21 | 2004-08-24 | Emerson Electric Co. | System and method for proportional control of oven heating elements |
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| CN101371756A (en) * | 2007-08-24 | 2009-02-25 | Lg电子株式会社 | Electric oven with multiple broil heaters and method for preheating the electric oven |
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