WO2023140802A1 - Four à éléments chauffants multiples dans la chambre de cuisson - Google Patents

Four à éléments chauffants multiples dans la chambre de cuisson Download PDF

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Publication number
WO2023140802A1
WO2023140802A1 PCT/TR2021/051604 TR2021051604W WO2023140802A1 WO 2023140802 A1 WO2023140802 A1 WO 2023140802A1 TR 2021051604 W TR2021051604 W TR 2021051604W WO 2023140802 A1 WO2023140802 A1 WO 2023140802A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating element
oven
heating elements
heating
mode
Prior art date
Application number
PCT/TR2021/051604
Other languages
English (en)
Inventor
Mustafa BOZTAS
Zubeyde GONULLU
Aysegul SENGUN
Original Assignee
Femas Metal San. Ve Tic. A.S.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Femas Metal San. Ve Tic. A.S. filed Critical Femas Metal San. Ve Tic. A.S.
Priority to PCT/TR2021/051604 priority Critical patent/WO2023140802A1/fr
Publication of WO2023140802A1 publication Critical patent/WO2023140802A1/fr

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Classifications

    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements
    • F24C7/067—Arrangement or mounting of electric heating elements on ranges
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat

Definitions

  • the invention relates to an oven comprising multiple heating elements connected in power limiting within the cooking chamber.
  • electric heating elements are utilized in the cooking chamber of ovens to conduct the cooking of food.
  • These heating elements can take various forms, including turboheating elements, elements located on the bottom wall and upper edges of the oven's cooking chamber, as well as elements designed specifically for frying.
  • turboheating elements elements located on the bottom wall and upper edges of the oven's cooking chamber, as well as elements designed specifically for frying.
  • the literature suggests that all of these heating elements may be present in the cooking chamber.
  • excessive power consumption can occur during the operation of these heating elements.
  • ovens are being developed with reduced power limit values to prevent power exceeding limits and thus prevent excessive power consumption of the heating elements.
  • EP3765793A1 discloses a power control system and method.
  • Power control systems and methods include power control logic configured to selectively apply electrical power received from an external resource to a plurality of heating elements to implement a heating algorithm.
  • the power control logic is configured to measure the electrical power supplied to the plurality of heating elements, predict an amount of the electrical power needed to activate one or more of the plurality of heating elements, track power usage for each of the plurality of heating elements, and determine a next heating element to activate based on the tracked power usage and the heating algorithm.
  • the system may include a voltage sense network to sense the electrical power received from the external resource and a high-power current-sense resistor to sense current flow through a circuit path supplying power to the plurality of heating elements
  • the objective of the invention is to improve an oven to achieve energy recovery by reducing the total electrical power consumption of the heating elements.
  • the invention relates to an oven comprising a housing; a cooking chamber provided within a cavity accessible from a front wall of the housing for cooking; one or more heating elements for cooking located at the walls of the cooking chamber electrically connected to each other and to a power supply.
  • the oven further comprises at least two heating elements connected to each other in power limiting manner switched such that serially connected to each other in a first mode or parallel to each other in a second mode. As a result, the power limit of the heating elements that provide heating inside the cooking chamber is reduced.
  • each heating element is mounted on electric heaters disposed at the corresponding walls of the cooking chamber. By changing the connection styles of the electric heaters, it is intended to obtain an oven that provides for example, an economical heating mode.
  • the first mode at least one heating element
  • the first mode is configured to be connected in series from a first node point or a second node point. This allows for the design of an oven with the desired heating mode. Additionally, by connecting all heating elements in series, the current passing through the heating elements can be reduced, thus reducing the power consumption of the heating elements. In this way, energy savings can be achieved in the oven and an economical heating configuration can be obtained.
  • At least one heating element in the second mode, is configured to be connected in parallel between the first joint and the second joint.
  • the parallel connection of the heating element the net resistance value is reduced and the current passing through them is increased. In this way, it is aimed to ensure cooking efficiency by reducing the power consumption of, for example, a high-power consuming turbo-electric heater located at the free wall of the cooking chamber and cooked with the heating provided by the other cooking elements.
  • At least one heating element is configured to be serially connected from the first node in the second mode.
  • the second mode at least one heating element is configured to be serially connected from the second node.
  • one or more heating elements is selected from the group comprising a convection electric heating element, a lower electric heating element, an upper electric heating element, and a broil electric heating element. In this way, heating is carried out in a manner that provides power efficiency according to the determined connection configurations.
  • the heating elements are adjusted to include predetermined resistance values. In this way, heating elements can be connected to provide power efficiency and heating efficiency in accordance with the determined energy saving standards of heating values.
  • Figure 1 is a front-perspective view of an oven according to the subject matter invention.
  • Figure 2 is a schematic illustration of a cooking chamber for an oven.
  • Figure 3 is a schematic representation of a configuration provided by the connections of the heating elements in the cooking chamber in the first mode for the oven of a subject matter invention.
  • Figure 4 is a schematic representation of a first configuration provided by the connections of the heating elements in the cooking chamber in the second mode for the oven of a subject matter invention.
  • Figure 5 is a schematic representation of a second configuration provided by the connections of the heating elements in the cooking chamber in the second mode for the oven of a subject matter invention.
  • an oven according to the subject matter invention, is shown from the front perspective.
  • a cooking chamber for an oven that is the subject of the invention is shown schematically.
  • the invention provides for reducing the power limit and thus increasing the heating efficiency during cooking in an oven (10). This allows for energy efficiency during cooking.
  • the oven (10) comprises a housing (12) surrounding the oven (10).
  • the housing (12) has a predetermined thickness and height that conforms to established standards.
  • the cooking chamber (14) can be designed to accommodate oven trays in accordance with the desired cooking options. Additionally, it may also include suitable designs for grilling in the cooking chamber (14).
  • heating elements (18), (20), (22), and optionally (23) for grilling are connected to the walls of the cooking chamber (14).
  • the heating elements (18), (20), (22), (23) can be connected to different or the same walls for the cooking process.
  • the heating elements (18), (20), (22), (23) can be mounted on a lower wall, an upper wall, a rear wall, and a grill line where grilling can be performed, to provide heating, and the cooking elements can be connected to each other and operated simultaneously to provide power efficiency in the cooking process.
  • FIG 3 a schematic diagram is shown for a configuration of heating elements in a baking chamber of an oven related to the subject of the invention, which is provided by the connections in the first mode.
  • Figure 4 a schematic diagram is shown for the first configuration provided by the connections in the second mode of the heating elements in the baking chamber of the oven related to the subject of the invention.
  • Figure 5 shows a second configuration provided by the connections in the second mode of the heating elements in the baking chamber of the oven related to the subject of the invention.
  • the aim is to develop oven designs (10) related to the subject of the invention in which the currents passing through the heating elements (18) (20) (22) (23) in the cooking chamber (14) are reduced and the power consumed by the heating elements (18) (20) (22) (23) is reduced to achieve energy savings, that is, economical heating.
  • heating elements resistor/grills
  • a first heating element (18), a second heating element (20), and a third heating element (22) are serially connected to each other for a first mode (24) connected in a manner fed from a power grid voltage (16), and the current drawn is reduced by increasing the net resistance value.
  • the power grid voltage (16) is an alternative voltage source and is 230 VAC.
  • the first heating element (18), the second heating element (20), and the third heating element (22) are connected in series, and a fourth heating element can also be connected if preferred.
  • each heating element (18) (20) (22) can be a turbo grill located on a back wall of the cooking chamber (14), a bottom grill located on a bottom wall of the cooking chamber (14), a top grill located on a top wall of the cooking chamber (14), or a cooking grill located on a line that can be used for grill cooking and connected to the back wall of the cooking chamber (14).
  • the first heating element (18) has a first resistance value (28) of 29 Q (Ohm) with a turbo grill.
  • the maximum power value (34) provided by the first heating element (18) can be 1800 W (watt) according to literature.
  • the second heating element (20) also has a second resistance value (30) of 48 Q (Ohm) when an under grill is used.
  • the maximum power value (34) provided by the second heating element (20) can be 1100 W (watt) according to literature.
  • the third heating element (22) also has a third resistance value (32) of 44 Q (Ohm) when an upper grill is used.
  • the maximum power value (34) provided by the third heating element (22) can be 1200 W (watt) according to literature.
  • a turbo grill is used as the first heating element (18) and connected in series to provide the first mode (24)
  • a current of approximately 1.89 A (amper) passes through the 29 Q (Ohm) resistance (28), and a power of 104 W (watt) (34) is provided.
  • a second mode (26) is connected in a way that it is powered from a grid voltage (16), and firstly, the second heating element (20) and the third heating element (22) or the first heating element and the second heating element (18) (20) or the first heating element and the third heating element (18) (22) are connected in parallel to each other between a first node point (36) and a second node point (38). Then, the unconnected heating element, for example, one end of the third heating element (22) is connected to the connection circuit of the second mode (26) from the first node point (36), and its other end is connected to the second node point (28). In this way, the net resistance value is reduced by their parallel connection, and the amount of current passing through them is increased. This prevents the loss of heating efficiency achieved by the simultaneous operation of the oven (10). For example, the operation of the heating elements (18) (20) (22) can be controlled by switching, so that the active heating elements (18) (20) (22) can be enabled when desired.
  • a second configuration (24) is supplied from a grid voltage (16) and the second heating element (20) and the third heating element (22) are connected in parallel.
  • the first heating element is connected in series to the parallel-connected second and third heating elements (20) (22) from the first node point (36).
  • the fourth heating element is connected in series to the parallel-connected second and third heating elements (20) (22) from the second node point (38).
  • the fourth resistance value (33) is 44 Q (Ohm).
  • the maximum power value of the cooking grill in the literature is also (34) 1200 watts.
  • the power value (34) of the fourth heating element (23) is much lower, and the powers consumed by the first, second, and third heating elements (18) (20) (22) are also lower than the maximum power values (34) in the literature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

Un four comprenant un boîtier (12) ; une chambre de cuisson (14) disposée à l'intérieur d'une cavité accessible à partir d'une paroi avant du boîtier (12) pour la cuisson ; un ou plusieurs éléments chauffants pour la cuisson situés au niveau des parois de la chambre de cuisson (14) électriquement connectés l'un à l'autre et à une alimentation électrique (16). Le four comprend en outre au moins deux éléments chauffants (18) (20) (22) (23) reliés l'un à l'autre de manière à limiter la puissance, commutés de manière à être connectés en série l'un à l'autre dans un premier mode (24) ou en parallèle dans un second mode (26).
PCT/TR2021/051604 2021-12-29 2021-12-29 Four à éléments chauffants multiples dans la chambre de cuisson WO2023140802A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2021/051604 WO2023140802A1 (fr) 2021-12-29 2021-12-29 Four à éléments chauffants multiples dans la chambre de cuisson

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2021/051604 WO2023140802A1 (fr) 2021-12-29 2021-12-29 Four à éléments chauffants multiples dans la chambre de cuisson

Publications (1)

Publication Number Publication Date
WO2023140802A1 true WO2023140802A1 (fr) 2023-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2021/051604 WO2023140802A1 (fr) 2021-12-29 2021-12-29 Four à éléments chauffants multiples dans la chambre de cuisson

Country Status (1)

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WO (1) WO2023140802A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073455A (en) * 1980-04-03 1981-10-14 Appliance Control Syst Pty Electrical power control systems
US5990460A (en) * 1997-01-31 1999-11-23 Amana Company, L.P. Voltage-dependent automatic cooking apparatus and method
US6355914B1 (en) * 1999-03-30 2002-03-12 Edward E. Stockley Programmable oven with menu selection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073455A (en) * 1980-04-03 1981-10-14 Appliance Control Syst Pty Electrical power control systems
US5990460A (en) * 1997-01-31 1999-11-23 Amana Company, L.P. Voltage-dependent automatic cooking apparatus and method
US6355914B1 (en) * 1999-03-30 2002-03-12 Edward E. Stockley Programmable oven with menu selection

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