US20220146100A1 - Oven appliance with direct cavity heating - Google Patents
Oven appliance with direct cavity heating Download PDFInfo
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- US20220146100A1 US20220146100A1 US17/096,645 US202017096645A US2022146100A1 US 20220146100 A1 US20220146100 A1 US 20220146100A1 US 202017096645 A US202017096645 A US 202017096645A US 2022146100 A1 US2022146100 A1 US 2022146100A1
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- gas burner
- chamber
- oven appliance
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- direct flow
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- 238000010438 heat treatment Methods 0.000 title description 40
- 238000010411 cooking Methods 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 55
- 239000007787 solid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
- F24C3/087—Arrangement or mounting of burners on ranges in baking ovens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
Definitions
- the subject matter of the present disclosure relates generally to an oven appliance, such as an oven appliance including a gas burner which provides direct heating to a cooking chamber or cavity of the oven.
- Oven appliances generally include a cabinet that defines a cooking chamber for cooking food items therein, such as by baking or broiling the food items.
- oven appliances include one or more heating elements positioned at a top portion, a bottom portion, or both the top portion and the bottom portion of the cooking chamber.
- Some oven appliances also include a convection heating element and fan for convection cooking cycles.
- the heating element or elements may be used for various cycles of the oven appliance, such as a preheat cycle, a cooking cycle, or a self-cleaning cycle.
- Oven appliances which include a gas burner as one of the heating elements, such as the bake heating element, generally include a partition which separates the gas burner from the cooking chamber, such as a floor of the cooking chamber below which the gas burner is positioned.
- the gas burner is located at a center position relative to the cooking chamber, such as, in the case of a bake element, below, e.g., directly below, the geometric center of the cooking chamber.
- Such oven appliances typically include a flame spreader above the gas burner bake heating element, such that the flame spreader is in direct thermal communication with the gas burner and the cooking chamber receives radiant heat from the flame spreader and/or partition.
- such arrangement may reduce the efficiency of heating the cooking chamber, e.g., due to the thermal mass of the flame spreader, as opposed to heating the chamber directly.
- an oven appliance with features for directly heating a cooking chamber therein would be desirable.
- an oven appliance with features for directly heating a cooking chamber therein with a gas burner bake heating element would be desirable.
- an oven appliance in one exemplary embodiment, includes a cabinet defining a vertical direction, a lateral direction, and a transverse direction. The vertical, lateral, and transverse directions are mutually perpendicular.
- the cabinet includes a front portion spaced apart from a back portion along the transverse direction and a left side spaced apart from a right side along the lateral direction.
- a chamber is defined within the cabinet for receipt of food items for cooking.
- a gas burner is positioned within the cabinet outside of the chamber. The gas burner is in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
- an oven appliance in another exemplary embodiment, includes a cabinet.
- a chamber is defined within the cabinet for receipt of food items for cooking.
- a gas burner is positioned within the cabinet outside of the chamber. The gas burner is in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
- FIG. 1 provides a front view of an exemplary oven appliance according to one or more embodiments of the present subject matter.
- FIG. 2 is a cross-sectional view of the oven appliance of FIG. 1 .
- FIG. 3 provides an enlarged cross-sectional view of a lower portion of the oven appliance of FIG. 1 according to one or more embodiments of the present subject matter.
- FIG. 4 provides an enlarged cross-sectional view of a lower portion of the oven appliance of FIG. 1 according to one or more additional embodiments of the present subject matter.
- FIG. 5 provides an enlarged cross-sectional view of a lower portion of the oven appliance of FIG. 1 according to one or more additional embodiments of the present subject matter.
- terms of approximation such as “generally,” or “about” include values within ten percent greater or less than the stated value. In the context of an angle or direction, such terms include values within ten degrees of the stated direction. For example, “generally vertical” includes directions within ten degrees of vertical in any direction, e.g., clockwise or counter-clockwise.
- FIGS. 1 and 2 illustrate an oven appliance 100 according to an exemplary embodiment of the present subject matter.
- Oven appliance 100 includes an insulated cabinet 102 which defines a vertical direction V, a lateral direction L, and a transverse direction T.
- the vertical, lateral, and transverse directions V, L, and T are mutually perpendicular and form an orthogonal direction system.
- Cabinet 102 extends between a top portion 40 and a bottom portion 42 along the vertical direction V.
- Cabinet 102 extends between a left side 44 and a right side 46 along the lateral direction L and between a front portion 48 and a back portion 50 along the transverse direction T.
- oven appliance 100 includes an insulated cabinet 102 with an interior cooking chamber 104 defined by a top wall 112 , a floor or bottom wall 114 , a back wall 116 , and a pair of opposing side walls 118 .
- Cooking chamber 104 is configured for the receipt of one or more food items to be cooked.
- Oven appliance 100 includes a door 108 pivotally mounted to cabinet 102 at the opening 106 of cabinet 102 to permit selective access to cooking chamber 104 through opening 106 .
- a handle 110 is mounted to door 108 and assists a user with opening and closing door 108 . For example, a user can pull on handle 110 to open or close door 108 and access cooking chamber 104 .
- Oven appliance 100 can include a seal (not shown) between door 108 and cabinet 102 that assists with maintaining heat and cooking vapors within cooking chamber 104 when door 108 is closed as shown in FIGS. 1 and 2 .
- Multiple parallel glass panes 122 provide for viewing the contents of cooking chamber 104 when door 108 is closed and assist with insulating cooking chamber 104 .
- a baking rack 142 is positioned in cooking chamber 104 for the receipt of food items or utensils containing food items. Baking rack 142 is slidably received onto embossed ribs or sliding rails 144 such that rack 142 may be conveniently moved into and out of cooking chamber 104 when door 108 is open.
- heating elements may be included at the top, bottom, or both of cooking chamber 104 to provide heat to cooking chamber 104 for cooking.
- Such heating element(s) can be gas, electric, microwave, or a combination thereof.
- oven appliance 100 includes a top heating element 124 which, in the illustrated example embodiment is an electric resistance heating element 124 , and a bake heating element or bottom heating element 126 , which, in the illustrated example embodiment is a gas burner 126 , and bottom heating element 126 is positioned adjacent to and below bottom wall 114 .
- oven appliance 100 also has a convection heating element 136 and convection fan 138 positioned adjacent back wall 116 of cooking chamber 104 .
- Convection fan 138 is powered by a convection fan motor 139 .
- convection fan 138 can be a variable speed fan—meaning the speed of fan 138 may be controlled or set anywhere between and including, e.g., zero and one hundred percent (0%-100%).
- oven appliance 100 may also include a bidirectional triode thyristor (not shown), i.e., a triode for alternating current (TRIAC), to regulate the operation of convection fan 138 such that the speed of fan 138 may be adjusted during operation of oven appliance 100 .
- TRIAC triode for alternating current
- the speed of convection fan 138 can be determined by controller 140 .
- a sensor 137 such as, e.g., a rotary encoder, a Hall effect sensor, or the like, may be included at the base of fan 138 , for example, between fan 138 and motor 139 as shown in the exemplary embodiment of FIGS. 2 and 3 , to sense the speed of fan 138 .
- the speed of fan 138 may be measured in, e.g., revolutions per minute (“RPM”).
- RPM revolutions per minute
- the convection fan 138 may be configured to rotate in two directions, e.g., a first direction of rotation and a second direction of rotation opposing the first direction of rotation.
- reversing the direction of rotation may still direct air from the back of the cavity.
- reversing the direction results in air being directed from the top and/or sides of the cavity rather than the back of the cavity.
- the convection heating features are optional and are shown and described herein solely by way of example. In other embodiments the oven appliance 100 may include different convection heating features or may not include convection heating features at all.
- more than one convection heater e.g., more than one convection heating elements 136 and/or convection fans 138 .
- the number of convection fans and convection heaters may be the same or may differ, e.g., more than one convection heating element 136 may be associated with a single convection fan 138 .
- more than one top heating element 124 and/or more than one bottom heating element 126 may be provided in various combinations, e.g., one top heating element 124 with two or more bottom heating elements 126 , two or more bottom heating elements 126 with no top heating element 124 , etc.
- Oven appliance 100 includes a user interface 128 having a display 130 positioned on an interface panel 132 and having a variety of controls 134 .
- Interface 128 allows the user to select various options for the operation of oven 100 including, e.g., various cooking and cleaning cycles. Operation of oven appliance 100 can be regulated by a controller 140 that is operatively coupled to, i.e., in communication with, user interface 128 , heating elements 124 , 126 , and other components of oven 100 as will be further described.
- controller 140 can operate the heating element(s). Controller 140 can receive measurements from one or more temperature sensors (not shown) which are in or in thermal communication with the cooking chamber 104 . Controller 140 may also provide information such as a status indicator, e.g., a temperature indication, to the user with display 130 . Controller 140 can also be provided with other features as will be further described herein.
- Controller 140 may include a memory and one or more processing devices such as microprocessors, CPUs, or the like, such as general or special purpose microprocessors operable to execute programming instructions or micro-control code associated with operation of oven appliance 100 .
- the memory may represent random access memory such as DRAM or read only memory such as ROM or FLASH.
- the processor executes programming instructions stored in memory.
- the memory may be a separate component from the processor or may be included onboard within the processor.
- the memory can store information accessible by the processor(s), including instructions that can be executed by processor(s).
- the instructions can be software or any set of instructions that when executed by the processor(s), cause the processor(s) to perform operations.
- the instructions may include a software package configured to operate the system, e.g., to execute exemplary methods of operating the oven appliance 100 .
- Controller 140 may also be or include the capabilities of either a proportional (P), proportional-integral (PI), or proportional-integral-derivative (PID) control for feedback-based control implemented with, e.g., temperature feedback from one or more sensors such as temperature sensors and/or probes, etc.
- P proportional
- PI proportional-integral
- PID proportional-integral-derivative
- Controller 140 may be positioned in a variety of locations throughout oven appliance 100 . In the illustrated embodiment, controller 140 is located next to user interface 128 within interface panel 132 . In other embodiments, controller 140 may be located under or next to the user interface 128 , otherwise within interface panel 132 , or at any other appropriate location with respect to oven appliance 100 . Generally, controller 140 will be positioned within the cabinet 102 . In the embodiment illustrated in FIG. 1 , input/output (“I/O”) signals are routed between controller 140 and various operational components of oven appliance 100 such as heating elements 124 , 126 , 136 , convection fan 138 , controls 134 , display 130 , alarms, and/or other components as may be provided. In one embodiment, user interface 128 may represent a general purpose I/O (“GPIO”) device or functional block.
- GPIO general purpose I/O
- user interface 128 may include various input components, such as one or more of a variety of electrical, mechanical, or electro-mechanical input devices including rotary dials, push buttons, and touch pads.
- User interface 128 may include other display components, such as a digital or analog display device designed to provide operational feedback to a user.
- User interface 128 may be in communication with controller 140 via one or more signal lines or shared communication busses.
- oven 100 is shown as a wall oven, the present invention could also be used with other cooking appliances such as, e.g., a stand-alone oven, an oven with a stove-top, or other configurations of such ovens. Numerous variations in the oven configuration are possible within the scope of the present subject matter. For example, variations in the type and/or layout of the controls 134 , as mentioned above, are possible. As another example, the oven appliance 100 may include multiple doors 108 instead of or in addition to the single door 108 illustrated. Such examples include a dual cavity oven, a French door oven, and others. As still another example, one or more of the illustrated heating elements may be substituted with microwave heating elements, or any other suitable heating elements. The examples described herein are provided by way of illustration only and without limitation.
- the gas burner 126 defines a generally cylindrical shape with a longitudinal axis 204 extending therethrough.
- the gas burner 126 also includes a plurality of ports 200 defined therein, e.g., in one or more linear arrays on one or more sides of the gas burner 126 .
- the ports 200 orient and direct combustion products, e.g., flames and heated gases, from the gas burner 126 , e.g., to or towards the cooking chamber 104 .
- the gas burner 126 is oriented generally along the transverse direction T, e.g., the longitudinal axis 204 of the gas burner 126 is parallel to or within ten degrees of the transverse direction T.
- the gas burner 126 is positioned within the cabinet 102 and outside of the chamber 104 .
- the gas burner 126 may be a bake heating element or bottom heating element and may be positioned below the chamber 104 and separated from the chamber 104 by a partition, e.g., the bottom wall 114 of the chamber 104 .
- the gas burner 126 may be in thermal communication and in fluid communication with the chamber by a flow path extending through one or more apertures or openings 202 in the bottom wall.
- the flow path may extend from the gas burner 126 , e.g., from the ports 200 thereof, through the opening(s) 202 , and into the cooking chamber 104 .
- the flow path may be a direct flow path from the gas burner 126 to the chamber 104 , e.g. where combustion products from the ports 200 of the gas burner 126 are oriented directly into the chamber 104 through the opening 202 and not against any intermediate solid structure, such as a solid portion of the bottom wall 114 or a flame spreader.
- the oven appliance 100 may include a single gas burner 126 .
- the gas burner 126 may include ports 200 on each side of the gas burner 126 .
- the ports 200 may each be oriented and configured to direct combustion products 206 directly into the cooking chamber 104 through the openings 202 in the bottom wall 114 of the cooking chamber 104 .
- the single gas burner 126 may be positioned off-center relative to the cooking chamber 104 , e.g., as illustrated in FIG. 3 .
- the single gas burner 126 may be positioned closer to one edge or side of the cabinet 102 than others.
- the gas burner 126 may be positioned closer to the front portion 48 and farther (relative to the distance from the front portion 48 ) from the back portion 50 , or vice versa.
- the ports 200 may have an oblique orientation, e.g., as illustrated in FIG. 3 .
- the ports 200 may be at an oblique angle to the vertical direction V.
- the openings 202 in the bottom wall 114 are generally parallel to the ports 200 , e.g., oriented at about the same angle, e.g., with respect to the vertical direction V, as the ports 200 .
- the openings 202 may also be aligned with the ports 200 .
- combustion products 206 generated by the gas burner 126 may follow a direct, e.g., along a straight line and uninterrupted by any solid components of the oven appliance 100 , flow path from the gas burner 126 to the cooking chamber 104 , as illustrated by the arrows in FIG. 3 .
- the oven appliance 100 may include multiple gas burners 126 , such as two or more gas burners 126 , such as three gas burners 126 as illustrated in FIGS. 4 and 5 .
- each gas burner 126 of the multiple gas burners 126 may be positioned below the cooking chamber 104 , e.g., below the bottom wall 114 thereof.
- the openings 202 may be oriented along the vertical direction V, e.g., as illustrated in FIGS. 4 and 5 .
- the ports 200 on the or each gas burner 126 may be positioned at a top or uppermost vertical portion of the or each gas burner 126 and may be oriented along the vertical direction V.
- the or each gas burner 126 may be located directly beneath each corresponding opening 202 along the vertical direction V such that the ports 200 are aligned with the opening(s) 202 in order to provide a direct flow path for combustion products 206 from the ports 200 to flow directly into the cooking chamber 104 via the opening(s) 202 .
- the or each gas burner 126 may be oriented along the lateral direction L (into and out of the page in FIG. 4 ).
- the or each gas burner 126 may be positioned within the cabinet 102 such that the longitudinal axis 204 ( FIG. 2 ) of the or each gas burner 126 is oriented generally along the lateral direction L.
- the gas burners 126 may be generally parallel to each other and to the lateral direction L and may be spaced apart along the transverse direction T, as illustrated in FIG. 4 .
- the or each gas burner 126 may be oriented along the transverse direction T (into and out of the page in FIG. 5 ).
- the or each gas burner 126 may be positioned within the cabinet 102 such that the longitudinal axis 204 ( FIG. 2 ) of the or each gas burner 126 is oriented generally along the transverse direction T.
- the gas burners 126 may be generally parallel to each other and to the transverse direction T and may be spaced apart along the lateral direction L, as illustrated in FIG. 5 .
Abstract
An oven appliance includes a cabinet with a chamber defined within the cabinet for receipt of food items for cooking. The oven appliance also includes a gas burner positioned within the cabinet outside of the chamber. The gas burner is in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
Description
- The subject matter of the present disclosure relates generally to an oven appliance, such as an oven appliance including a gas burner which provides direct heating to a cooking chamber or cavity of the oven.
- Oven appliances generally include a cabinet that defines a cooking chamber for cooking food items therein, such as by baking or broiling the food items. To heat the cooking chamber for cooking, oven appliances include one or more heating elements positioned at a top portion, a bottom portion, or both the top portion and the bottom portion of the cooking chamber. Some oven appliances also include a convection heating element and fan for convection cooking cycles. The heating element or elements may be used for various cycles of the oven appliance, such as a preheat cycle, a cooking cycle, or a self-cleaning cycle.
- Oven appliances which include a gas burner as one of the heating elements, such as the bake heating element, generally include a partition which separates the gas burner from the cooking chamber, such as a floor of the cooking chamber below which the gas burner is positioned. Typically, the gas burner is located at a center position relative to the cooking chamber, such as, in the case of a bake element, below, e.g., directly below, the geometric center of the cooking chamber. Such oven appliances typically include a flame spreader above the gas burner bake heating element, such that the flame spreader is in direct thermal communication with the gas burner and the cooking chamber receives radiant heat from the flame spreader and/or partition. However, such arrangement may reduce the efficiency of heating the cooking chamber, e.g., due to the thermal mass of the flame spreader, as opposed to heating the chamber directly.
- Accordingly, an oven appliance with features for directly heating a cooking chamber therein would be desirable. In particular, an oven appliance with features for directly heating a cooking chamber therein with a gas burner bake heating element would be desirable.
- Aspects and advantages of the invention will be set forth in part in the following description, may be apparent from the description, or may be learned through practice of the invention.
- In one exemplary embodiment, an oven appliance is provided. The oven appliance includes a cabinet defining a vertical direction, a lateral direction, and a transverse direction. The vertical, lateral, and transverse directions are mutually perpendicular. The cabinet includes a front portion spaced apart from a back portion along the transverse direction and a left side spaced apart from a right side along the lateral direction. A chamber is defined within the cabinet for receipt of food items for cooking. A gas burner is positioned within the cabinet outside of the chamber. The gas burner is in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
- In another exemplary embodiment, an oven appliance is provided. The oven appliance includes a cabinet. A chamber is defined within the cabinet for receipt of food items for cooking. A gas burner is positioned within the cabinet outside of the chamber. The gas burner is in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
- These and other features, aspects, and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
- A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures.
-
FIG. 1 provides a front view of an exemplary oven appliance according to one or more embodiments of the present subject matter. -
FIG. 2 is a cross-sectional view of the oven appliance ofFIG. 1 . -
FIG. 3 provides an enlarged cross-sectional view of a lower portion of the oven appliance ofFIG. 1 according to one or more embodiments of the present subject matter. -
FIG. 4 provides an enlarged cross-sectional view of a lower portion of the oven appliance ofFIG. 1 according to one or more additional embodiments of the present subject matter. -
FIG. 5 provides an enlarged cross-sectional view of a lower portion of the oven appliance ofFIG. 1 according to one or more additional embodiments of the present subject matter. - Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
- As used herein, terms of approximation, such as “generally,” or “about” include values within ten percent greater or less than the stated value. In the context of an angle or direction, such terms include values within ten degrees of the stated direction. For example, “generally vertical” includes directions within ten degrees of vertical in any direction, e.g., clockwise or counter-clockwise.
-
FIGS. 1 and 2 illustrate anoven appliance 100 according to an exemplary embodiment of the present subject matter.Oven appliance 100 includes an insulatedcabinet 102 which defines a vertical direction V, a lateral direction L, and a transverse direction T. The vertical, lateral, and transverse directions V, L, and T are mutually perpendicular and form an orthogonal direction system.Cabinet 102 extends between atop portion 40 and abottom portion 42 along the verticaldirection V. Cabinet 102 extends between aleft side 44 and aright side 46 along the lateral direction L and between afront portion 48 and aback portion 50 along the transverse direction T. - Still referring to
FIGS. 1 and 2 , for this exemplary embodiment,oven appliance 100 includes an insulatedcabinet 102 with aninterior cooking chamber 104 defined by atop wall 112, a floor orbottom wall 114, aback wall 116, and a pair ofopposing side walls 118.Cooking chamber 104 is configured for the receipt of one or more food items to be cooked.Oven appliance 100 includes adoor 108 pivotally mounted tocabinet 102 at the opening 106 ofcabinet 102 to permit selective access tocooking chamber 104 through opening 106. Ahandle 110 is mounted todoor 108 and assists a user with opening and closingdoor 108. For example, a user can pull onhandle 110 to open orclose door 108 and accesscooking chamber 104. -
Oven appliance 100 can include a seal (not shown) betweendoor 108 andcabinet 102 that assists with maintaining heat and cooking vapors withincooking chamber 104 whendoor 108 is closed as shown inFIGS. 1 and 2 . Multipleparallel glass panes 122 provide for viewing the contents ofcooking chamber 104 whendoor 108 is closed and assist withinsulating cooking chamber 104. Abaking rack 142 is positioned incooking chamber 104 for the receipt of food items or utensils containing food items. Bakingrack 142 is slidably received onto embossed ribs or slidingrails 144 such thatrack 142 may be conveniently moved into and out ofcooking chamber 104 whendoor 108 is open. - One or more heating elements may be included at the top, bottom, or both of
cooking chamber 104 to provide heat tocooking chamber 104 for cooking. Such heating element(s) can be gas, electric, microwave, or a combination thereof. For example, in the embodiment shown inFIG. 2 ,oven appliance 100 includes atop heating element 124 which, in the illustrated example embodiment is an electricresistance heating element 124, and a bake heating element orbottom heating element 126, which, in the illustrated example embodiment is agas burner 126, andbottom heating element 126 is positioned adjacent to and belowbottom wall 114. - In the illustrated example embodiment,
oven appliance 100 also has aconvection heating element 136 andconvection fan 138 positionedadjacent back wall 116 ofcooking chamber 104.Convection fan 138 is powered by aconvection fan motor 139. Further,convection fan 138 can be a variable speed fan—meaning the speed offan 138 may be controlled or set anywhere between and including, e.g., zero and one hundred percent (0%-100%). In certain embodiments,oven appliance 100 may also include a bidirectional triode thyristor (not shown), i.e., a triode for alternating current (TRIAC), to regulate the operation ofconvection fan 138 such that the speed offan 138 may be adjusted during operation ofoven appliance 100. The speed ofconvection fan 138 can be determined bycontroller 140. In addition, asensor 137 such as, e.g., a rotary encoder, a Hall effect sensor, or the like, may be included at the base offan 138, for example, betweenfan 138 andmotor 139 as shown in the exemplary embodiment ofFIGS. 2 and 3 , to sense the speed offan 138. The speed offan 138 may be measured in, e.g., revolutions per minute (“RPM”). In some embodiments, theconvection fan 138 may be configured to rotate in two directions, e.g., a first direction of rotation and a second direction of rotation opposing the first direction of rotation. For example, in some embodiments, reversing the direction of rotation, e.g., from the first direction to the second direction or vice versa, may still direct air from the back of the cavity. As another example, in some embodiments reversing the direction results in air being directed from the top and/or sides of the cavity rather than the back of the cavity. Additionally, the convection heating features are optional and are shown and described herein solely by way of example. In other embodiments theoven appliance 100 may include different convection heating features or may not include convection heating features at all. - In various embodiments, more than one convection heater, e.g., more than one
convection heating elements 136 and/orconvection fans 138, may be provided. In such embodiments, the number of convection fans and convection heaters may be the same or may differ, e.g., more than oneconvection heating element 136 may be associated with asingle convection fan 138. Similarly, more than onetop heating element 124 and/or more than onebottom heating element 126 may be provided in various combinations, e.g., onetop heating element 124 with two or morebottom heating elements 126, two or morebottom heating elements 126 with notop heating element 124, etc. -
Oven appliance 100 includes auser interface 128 having adisplay 130 positioned on aninterface panel 132 and having a variety ofcontrols 134.Interface 128 allows the user to select various options for the operation ofoven 100 including, e.g., various cooking and cleaning cycles. Operation ofoven appliance 100 can be regulated by acontroller 140 that is operatively coupled to, i.e., in communication with,user interface 128,heating elements oven 100 as will be further described. - For example, in response to user manipulation of the
user interface 128,controller 140 can operate the heating element(s).Controller 140 can receive measurements from one or more temperature sensors (not shown) which are in or in thermal communication with thecooking chamber 104.Controller 140 may also provide information such as a status indicator, e.g., a temperature indication, to the user withdisplay 130.Controller 140 can also be provided with other features as will be further described herein. -
Controller 140 may include a memory and one or more processing devices such as microprocessors, CPUs, or the like, such as general or special purpose microprocessors operable to execute programming instructions or micro-control code associated with operation ofoven appliance 100. The memory may represent random access memory such as DRAM or read only memory such as ROM or FLASH. In one embodiment, the processor executes programming instructions stored in memory. The memory may be a separate component from the processor or may be included onboard within the processor. The memory can store information accessible by the processor(s), including instructions that can be executed by processor(s). For example, the instructions can be software or any set of instructions that when executed by the processor(s), cause the processor(s) to perform operations. For the embodiment depicted, the instructions may include a software package configured to operate the system, e.g., to execute exemplary methods of operating theoven appliance 100.Controller 140 may also be or include the capabilities of either a proportional (P), proportional-integral (PI), or proportional-integral-derivative (PID) control for feedback-based control implemented with, e.g., temperature feedback from one or more sensors such as temperature sensors and/or probes, etc. -
Controller 140 may be positioned in a variety of locations throughoutoven appliance 100. In the illustrated embodiment,controller 140 is located next touser interface 128 withininterface panel 132. In other embodiments,controller 140 may be located under or next to theuser interface 128, otherwise withininterface panel 132, or at any other appropriate location with respect tooven appliance 100. Generally,controller 140 will be positioned within thecabinet 102. In the embodiment illustrated inFIG. 1 , input/output (“I/O”) signals are routed betweencontroller 140 and various operational components ofoven appliance 100 such asheating elements convection fan 138, controls 134,display 130, alarms, and/or other components as may be provided. In one embodiment,user interface 128 may represent a general purpose I/O (“GPIO”) device or functional block. - Although shown with touch type controls 134, it should be understood that controls 134 and the configuration of
oven appliance 100 shown inFIG. 1 is provided by way of example only. More specifically,user interface 128 may include various input components, such as one or more of a variety of electrical, mechanical, or electro-mechanical input devices including rotary dials, push buttons, and touch pads.User interface 128 may include other display components, such as a digital or analog display device designed to provide operational feedback to a user.User interface 128 may be in communication withcontroller 140 via one or more signal lines or shared communication busses. - While
oven 100 is shown as a wall oven, the present invention could also be used with other cooking appliances such as, e.g., a stand-alone oven, an oven with a stove-top, or other configurations of such ovens. Numerous variations in the oven configuration are possible within the scope of the present subject matter. For example, variations in the type and/or layout of thecontrols 134, as mentioned above, are possible. As another example, theoven appliance 100 may includemultiple doors 108 instead of or in addition to thesingle door 108 illustrated. Such examples include a dual cavity oven, a French door oven, and others. As still another example, one or more of the illustrated heating elements may be substituted with microwave heating elements, or any other suitable heating elements. The examples described herein are provided by way of illustration only and without limitation. - Referring specifically to
FIG. 2 , it may be seen that thegas burner 126 defines a generally cylindrical shape with alongitudinal axis 204 extending therethrough. Thegas burner 126 also includes a plurality ofports 200 defined therein, e.g., in one or more linear arrays on one or more sides of thegas burner 126. As will be recognized and understood by those of ordinary skill in the art, theports 200 orient and direct combustion products, e.g., flames and heated gases, from thegas burner 126, e.g., to or towards thecooking chamber 104. In the example embodiment illustrated inFIG. 2 , thegas burner 126 is oriented generally along the transverse direction T, e.g., thelongitudinal axis 204 of thegas burner 126 is parallel to or within ten degrees of the transverse direction T. - Also as may be seen in
FIG. 2 , thegas burner 126 is positioned within thecabinet 102 and outside of thechamber 104. In some embodiments, for example as illustrated inFIG. 2 , thegas burner 126 may be a bake heating element or bottom heating element and may be positioned below thechamber 104 and separated from thechamber 104 by a partition, e.g., thebottom wall 114 of thechamber 104. Thegas burner 126 may be in thermal communication and in fluid communication with the chamber by a flow path extending through one or more apertures oropenings 202 in the bottom wall. In at least some embodiments, the flow path may extend from thegas burner 126, e.g., from theports 200 thereof, through the opening(s) 202, and into thecooking chamber 104. For example, the flow path may be a direct flow path from thegas burner 126 to thechamber 104, e.g. where combustion products from theports 200 of thegas burner 126 are oriented directly into thechamber 104 through theopening 202 and not against any intermediate solid structure, such as a solid portion of thebottom wall 114 or a flame spreader. - In some embodiments, e.g., as illustrated in
FIG. 3 , theoven appliance 100 may include asingle gas burner 126. As illustrated inFIG. 3 , thegas burner 126 may includeports 200 on each side of thegas burner 126. Theports 200 may each be oriented and configured to directcombustion products 206 directly into thecooking chamber 104 through theopenings 202 in thebottom wall 114 of thecooking chamber 104. For example, in some embodiments, thesingle gas burner 126 may be positioned off-center relative to thecooking chamber 104, e.g., as illustrated inFIG. 3 . In some such embodiments, thesingle gas burner 126 may be positioned closer to one edge or side of thecabinet 102 than others. For example, thegas burner 126 may be positioned closer to thefront portion 48 and farther (relative to the distance from the front portion 48) from theback portion 50, or vice versa. - In some embodiments, the
ports 200 may have an oblique orientation, e.g., as illustrated inFIG. 3 . For example, in such embodiments, theports 200 may be at an oblique angle to the vertical direction V. Further, in such embodiments, theopenings 202 in thebottom wall 114 are generally parallel to theports 200, e.g., oriented at about the same angle, e.g., with respect to the vertical direction V, as theports 200. Theopenings 202 may also be aligned with theports 200. Thereby, thecombustion products 206 generated by thegas burner 126 may follow a direct, e.g., along a straight line and uninterrupted by any solid components of theoven appliance 100, flow path from thegas burner 126 to thecooking chamber 104, as illustrated by the arrows inFIG. 3 . - In additional embodiments, the
oven appliance 100 may includemultiple gas burners 126, such as two ormore gas burners 126, such as threegas burners 126 as illustrated inFIGS. 4 and 5 . In such embodiments, eachgas burner 126 of themultiple gas burners 126 may be positioned below thecooking chamber 104, e.g., below thebottom wall 114 thereof. - In some embodiments, the
openings 202 may be oriented along the vertical direction V, e.g., as illustrated inFIGS. 4 and 5 . In such embodiments, theports 200 on the or eachgas burner 126 may be positioned at a top or uppermost vertical portion of the or eachgas burner 126 and may be oriented along the vertical direction V. The or eachgas burner 126 may be located directly beneath eachcorresponding opening 202 along the vertical direction V such that theports 200 are aligned with the opening(s) 202 in order to provide a direct flow path forcombustion products 206 from theports 200 to flow directly into thecooking chamber 104 via the opening(s) 202. - In some embodiments, e.g., as illustrated in
FIG. 4 , the or eachgas burner 126 may be oriented along the lateral direction L (into and out of the page inFIG. 4 ). In such embodiments, for example, the or eachgas burner 126 may be positioned within thecabinet 102 such that the longitudinal axis 204 (FIG. 2 ) of the or eachgas burner 126 is oriented generally along the lateral direction L. For example, in embodiments withmultiple gas burners 126, thegas burners 126 may be generally parallel to each other and to the lateral direction L and may be spaced apart along the transverse direction T, as illustrated inFIG. 4 . - In some embodiments, e.g., as illustrated in
FIG. 5 , the or eachgas burner 126 may be oriented along the transverse direction T (into and out of the page inFIG. 5 ). In such embodiments, for example, the or eachgas burner 126 may be positioned within thecabinet 102 such that the longitudinal axis 204 (FIG. 2 ) of the or eachgas burner 126 is oriented generally along the transverse direction T. For example, in embodiments withmultiple gas burners 126, thegas burners 126 may be generally parallel to each other and to the transverse direction T and may be spaced apart along the lateral direction L, as illustrated inFIG. 5 . - This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Claims (19)
1. An oven appliance, comprising:
a cabinet defining a vertical direction, a lateral direction, and a transverse direction, the vertical, lateral, and transverse directions being mutually perpendicular, the cabinet comprising a front portion spaced apart from a back portion along the transverse direction and a left side spaced apart from a right side along the lateral direction;
a chamber defined within the cabinet for receipt of food items for cooking;
a gas burner positioned within the cabinet outside of the chamber, the gas burner in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
2. The oven appliance of claim 1 , wherein the gas burner comprises a plurality of ports, and wherein the plurality of ports are oriented and configured to direct combustion products from the gas burner along the direct flow path into the chamber.
3. The oven appliance of claim 1 , wherein the gas burner is separated from the chamber by a partition, and wherein the direct flow path extends through an opening in the partition.
4. The oven appliance of claim 3 , wherein the partition is a bottom wall of the chamber and the gas burner is positioned below the bottom wall along the vertical direction.
5. The oven appliance of claim 3 , wherein the gas burner comprises a plurality of ports, and wherein the plurality of ports are oriented and configured to direct combustion products from the gas burner through the opening in the partition.
6. The oven appliance of claim 1 , wherein the direct flow path extends along a single straight line with no obstructions on the single straight line between the gas burner and the chamber.
7. The oven appliance of claim 6 , wherein the direct flow path is coextensive with the single straight line such that the direct flow path begins at one end of the single straight line and ends at the other end of the single straight line.
8. The oven appliance of claim 1 , wherein the direct flow path is oblique to the vertical direction.
9. The oven appliance of claim 1 , wherein the direct flow path extends along or parallel to the vertical direction.
10. The oven appliance of claim 1 , wherein the gas burner is a first gas burner, further comprising a second gas burner, wherein the second gas burner is in thermal communication and in fluid communication with the chamber by a second direct flow path from the gas burner to the chamber.
11. The oven appliance of claim 10 , wherein the first gas and the second gas burner are oriented along the transverse direction and spaced apart along the lateral direction.
12. The oven appliance of claim 10 , wherein the first gas and the second gas burner are oriented along the lateral direction and spaced apart along the transverse direction.
13. An oven appliance, comprising:
a cabinet;
a chamber defined within the cabinet for receipt of food items for cooking;
a gas burner positioned within the cabinet outside of the chamber, the gas burner in thermal communication and in fluid communication with the chamber by a direct flow path from the gas burner to the chamber.
14. The oven appliance of claim 13 , wherein the gas burner comprises a plurality of ports, and wherein the plurality of ports are oriented and configured to direct combustion products from the gas burner along the direct flow path into the chamber.
15. The oven appliance of claim 13 , wherein the gas burner is separated from the chamber by a partition, and wherein the direct flow path extends through an opening in the partition.
16. The oven appliance of claim 15 , wherein the gas burner comprises a plurality of ports, and wherein the plurality of ports are oriented and configured to direct combustion products from the gas burner through the opening in the partition.
17. The oven appliance of claim 13 , wherein the direct flow path extends along a single straight line with no obstructions on the single straight line between the gas burner and the chamber.
18. The oven appliance of claim 17 , wherein the direct flow path is coextensive with the single straight line such that the direct flow path begins at one end of the single straight line and ends at the other end of the single straight line.
19. The oven appliance of claim 13 , wherein the gas burner is a first gas burner, further comprising a second gas burner, wherein the second gas burner is in thermal communication and in fluid communication with the chamber by a second direct flow path from the gas burner to the chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/096,645 US20220146100A1 (en) | 2020-11-12 | 2020-11-12 | Oven appliance with direct cavity heating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US17/096,645 US20220146100A1 (en) | 2020-11-12 | 2020-11-12 | Oven appliance with direct cavity heating |
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US20220146100A1 true US20220146100A1 (en) | 2022-05-12 |
Family
ID=81453344
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US17/096,645 Abandoned US20220146100A1 (en) | 2020-11-12 | 2020-11-12 | Oven appliance with direct cavity heating |
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