Cooking equipment

Abstract

The utility model provides a cooking device which comprises a box shell, a heating device and a heating device. The first power supply is arranged in the accommodating cavity; the cooking device is arranged in the containing cavity and comprises an inner container, a cooking cavity is formed in the inner container, the inner container is used for containing food materials, and the inner container is provided with two opposite first side plates. The two metal plates are arranged on the side faces, facing each other, of the two first side plates respectively, and the two metal plates are electrically connected with a first power source so as to be electrified to form an electric field acting on the food materials; the two corresponding metal plates are detachably connected to the inner container, each needle-level heating plate comprises a plurality of heating needles which are arranged at intervals, the heating needles are electrically connected with the corresponding metal plates, and the free ends of the heating needles are located in the cooking cavity and used for being inserted into the food materials after being powered on, so that heat is more effectively distributed to all parts of the food materials, and the heating efficiency is improved. The food materials are heated more uniformly, and the cooking uniformity is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment, and more particularly to a cooking device. Background Technology

[0002] The cooking equipment may include a housing and a cooking cavity. The cooking cavity may be equipped with a heating element to heat the food inside the cooking cavity, thereby completing the cooking function.

[0003] In related technologies, the heating component may include a pair of electrode groups that are in contact with the food. The electrode groups are connected to a power supply and are used to apply an electric field to the food when electrical energy is applied, so that current flows through the food as a conductor and heat energy is generated to heat the food.

[0004] This heating method primarily utilizes the electrical conductivity of food, treating it as a conductor in a circuit for cooking. Cooking food with high electrical conductivity offers advantages such as rapid heating, even heating, no pollution, and high thermal energy utilization. However, when cooking food with low moisture content, dryness, or irregular solid shapes, the solid food cannot fully contact the two electrodes, resulting in uneven current distribution. This causes the contacted parts to cook faster than the uncontacted parts, leading to uneven heating. Furthermore, the varying resistance within the uneven solid food contributes to an uneven electric field, causing some parts to overheat while others are underheated, resulting in poor heating uniformity and affecting cooking results. This method cannot meet the cooking needs of various shaped food items. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, according to embodiments of this disclosure, a cooking apparatus is proposed, comprising:

[0007] The outer shell has a cavity inside;

[0008] A first power source is located within the receiving cavity;

[0009] At least one cooking device is disposed in the receiving cavity, the cooking device comprising:

[0010] The inner pot has a cooking cavity inside for holding food, and the inner pot has two opposing first side plates;

[0011] Two metal plates are respectively disposed on the mutually facing sides of the two first side plates and in contact with the food. The two metal plates are electrically connected to the first power source to generate an electric field acting on the food.

[0012] Two needle-level heating plates, corresponding to the two metal plates, are detachably connected to the inner liner. The needle-level heating plates include spaced-apart components:

[0013] Several heating pins are electrically connected to the corresponding metal plates. The free ends of the heating pins are located inside the cooking cavity and are used to contact and insert into the interior of the food after being powered on.

[0014] The above technical solution has the following advantages or beneficial effects: When the two metal plates are energized, they act as electrodes, applying an electric field to the food, causing current to flow through the food and generating heat. By setting up needle-level heating plates, the contact area between the metal plates and the food is increased. Multiple heating needles contacting and inserting into the food allows more current to flow through its interior, thereby increasing heat generation. Compared to a single electrode, multiple heating needles can penetrate the food during cooking, overcoming uneven contact and more effectively distributing heat to all parts of the food, resulting in more even heating and improved cooking uniformity.

[0015] According to an embodiment of this disclosure, a heating needle on one of the needle-level heating plates is defined as a first heating needle, and a heating needle on the other needle-level heating plate is defined as a second heating needle, with the first heating needle and the second heating needle being alternately arranged.

[0016] The above technical solution has the following advantages or beneficial effects: the staggered arrangement of the first heating needle and the second heating needle can ensure that the electric field is more evenly distributed in the food, making the heat transfer more balanced and further improving the cooking uniformity.

[0017] According to an embodiment of this disclosure, the diameter of the heating needle is d, where d≤5mm and d≥2mm.

[0018] The above technical solution has the following advantages or beneficial effects: by reasonably setting the diameter of the heating needle, it can avoid the heating needle being too thick, which would affect the convenience of inserting food, and also prevent the heating needle being too thin, which would injure the user.

[0019] According to an embodiment of this disclosure, the needle-level heating plate includes a substrate, the substrate being detachably connected to the side of the first side plate away from the metal plate, and a plurality of heating needles being evenly arranged and vertically connected to the side of the substrate near the metal plate.

[0020] The first side plate is provided with a first through hole for the heating needle to pass through, and the metal plate is provided with a second through hole for the heating needle to pass through. The heating needle passes through the corresponding first through hole and second through hole in sequence and extends into the cooking cavity.

[0021] The above technical solution has the following advantages or beneficial effects: the substrate is detachably mounted on the outer side of the first side plate, so that the needle-level heating plate can be removed separately, making it convenient for users to clean and maintain it; at the same time, the substrate is located outside the cooking cavity, making the installation and removal process of the needle-level heating plate simpler.

[0022] According to an embodiment of this disclosure, the substrate is made of metal material, and conductive portions are protruded on the opposite sides of the two metal plates. The conductive portions extend through the corresponding first side plates and abut against the substrate to form an electrical connection between the heating needle and the corresponding side plate.

[0023] The above technical solution has the following advantages or beneficial effects: by setting a conductive part, when the metal plate is energized, the heating needle is also energized. The conductive part is connected to an external needle-level heating plate to energize the needle-level heating plate, thus ensuring that the heating needle is energized.

[0024] According to an embodiment of this disclosure, the heating needle is connected to the inner wall of the second perforation so that the heating needle forms an electrical connection with the metal plate.

[0025] The above technical solution has the following advantages or beneficial effects: the heating needle is directly electrically connected to the metal plate, which reduces the transmission process of current in the intermediate medium, reduces energy loss, improves heating efficiency, and ensures that the food is heated quickly and evenly.

[0026] According to an embodiment of this disclosure, a second sealing element is provided between the substrate and the first side plate.

[0027] The above technical solution has the following advantages or beneficial effects: by setting a second sealing element, the overflow of flowing ingredients during cooking is prevented.

[0028] According to embodiments of this disclosure, the cooking apparatus further includes:

[0029] The base has an internally defined mounting cavity for mounting the inner liner, and the top of the base has an opening;

[0030] A power terminal is provided on the first side plate, and one end of the power terminal is connected to the metal plate;

[0031] Two spring contacts are respectively disposed on the opposite second side plates of the base. One end of each spring contact is a conductive end and is fixed relative to the second side plate, while the other end extends into the mounting cavity to form an elastic contact.

[0032] The two conductive terminals are respectively connected to the two output terminals of the first power supply; when the inner liner is assembled in the mounting cavity, the power receiving terminal and the elastic contact are correspondingly abutted to form an electrical connection; after the inner liner is disassembled, the power receiving terminal and the elastic contact are disconnected.

[0033] The above technical solution has the following advantages or beneficial effects: After the inner liner is disassembled, the elastic contact between the metal plate and the spring is disconnected, which avoids the conduction of the power supply circuit where the first power source is located. This not only prevents accidental heating after the inner liner is disassembled or when it is not installed correctly, increasing safety during use, but also ensures safety, ensuring that users will not encounter safety hazards due to contact with the power source when cleaning or handling the inner liner.

[0034] According to an embodiment of this disclosure, after the inner liner is assembled, the height of the top of the second side plate is higher than the height of the top of the needle-level heating plate.

[0035] The above technical solution has the following advantages or beneficial effects: the setting makes the height of the base higher than the needle-level heating plate, avoiding contact with the needle-level heating plate when the user takes out the inner liner, thus improving electrical safety performance.

[0036] Another aspect of this application provides a cooking apparatus comprising:

[0037] The outer shell has a cavity inside;

[0038] A first power source is located within the receiving cavity;

[0039] At least one cooking device is disposed in the receiving cavity, the cooking device comprising:

[0040] The inner pot has a cooking cavity inside for holding food, and the inner pot has two opposing first side plates;

[0041] Two metal plates are respectively disposed on the mutually facing sides of the two first side plates and in contact with the food. The two metal plates are electrically connected to the first power source to generate an electric field acting on the food.

[0042] The metal plate is electrically connected to several heating pins, which are located in the cooking cavity and are used to contact and insert into the interior of the food after being powered on.

[0043] The above technical solution has the following advantages or beneficial effects: by electrically connecting several heating pins to the metal plate, the contact area between the metal plate and the food is increased. When cooking the food, the heating pins can be evenly inserted into the food, thereby more effectively distributing heat to all parts of the food, making the food more evenly heated and improving the uniformity of cooking. Attached Figure Description

[0044] Figure 1 This is a perspective view of the cooking apparatus according to an embodiment of this application;

[0045] Figure 2This is a perspective view of the cooking device in its pulled-out state according to the embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the internal structure of the cooking apparatus according to an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the cooking apparatus according to an embodiment of this application, omitting the cover plate;

[0048] Figure 5 This is a schematic diagram of the structure of the needle-level heating plate according to an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of the structure of the needle-level heating plate installed on the inner liner according to the embodiment of this application;

[0050] Figure 7 yes Figure 23 Sectional view in;

[0051] Figure 8 This is a partial exploded view of the needle-level heating plate and the inner liner according to an embodiment of this application;

[0052] Figure 9 This is a partial exploded view of the base and inner liner according to an embodiment of this application;

[0053] Figure 10 This is a schematic diagram of the electrical connection between the metal plate and the needle-level heating plate according to an embodiment of this application;

[0054] Figure 11 This is a top view of the cooking apparatus according to an embodiment of this application;

[0055] Figure 12 yes Figure 11 Sectional view at point BB;

[0056] Figure 13 This is a schematic diagram of the structure of a cooking apparatus according to another embodiment of this application;

[0057] Figure 14 This is a schematic diagram of the inner liner according to another embodiment of this application;

[0058] Figure 15 This is a partial structural schematic diagram of the inner liner according to another embodiment of this application;

[0059] Figure 16 This is a cross-sectional view of the inner liner according to another embodiment of this application;

[0060] Figure 17 This is a schematic diagram of the structure of the base according to another embodiment of this application;

[0061] Figure 18This is a partial exploded view of the base according to another embodiment of this application;

[0062] Figure 19 yes Figure 18 Enlarged view of the local structure at point A in the middle;

[0063] Figure 20 This is a partial structural schematic diagram of a cooking apparatus according to another embodiment of this application;

[0064] Figure 21 This is a top view of a cooking apparatus according to another embodiment of this application;

[0065] Figure 22 yes Figure 21 Sectional view at point AA;

[0066] Figure 23 This is an internal structural diagram of a cooking apparatus according to another embodiment of this application;

[0067] Figure 24 yes Figure 23 Enlarged view of the local structure at point B;

[0068] Figure 25 This is a schematic diagram of the structure of the spring sheet according to another embodiment of this application;

[0069] Figure 26 This is a partial exploded view of the cooking apparatus and shrapnel according to another embodiment of this application;

[0070] Figure 27 This is a structural schematic diagram of a cooking apparatus according to another embodiment of this application from another perspective;

[0071] Figure 28 This is a schematic diagram of the cover plate according to another embodiment of this application;

[0072] Figure 29 This is a cross-sectional view of the cover plate according to another embodiment of this application;

[0073] In the above figures: cooking equipment 100; shell 101; drawer box 1011; drawer 1012; receiving cavity 1013; cooking device 10; first power supply 20; inner pot 1; cooking cavity 11; first side plate 12; first through hole 121; first perforation 122; receiving part 13; accommodating part 14; snap-fit ​​structure 15; limiting part 16; metal plate 2; second perforation 21; base 3; mounting cavity 31; second side plate 32; mounting part 33; limiting countersunk platform 34; connecting hole 341; second power supply 4; spring 5; elastic contact 51; conductive end 52; arc-shaped part 53; power terminal 6; first seal 71; second seal 72; cover plate 8; handle groove 81; handle 82; needle-level heating plate 9; base plate 91; second through hole 911; heating needle 92; first heating needle 921; second heating needle 922; conductive part 93. Detailed Implementation

[0074] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0075] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0076] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0077] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0078] This application discloses a cooking device 100, which is described below with reference to the accompanying drawings. Figures 1-29 The cooking equipment 100 is described.

[0079] refer to Figure 1 The cooking appliance 100 may include a housing 101. A receiving cavity 1013 is formed inside the housing 101, which can provide installation space for various components in the cooking appliance 100.

[0080] The housing 101 is configured to form the outer shell of the cooking appliance 100, and the housing 101 can be used to protect the components located inside the housing 101.

[0081] The housing 101 can be a rectangular hollow structure. It should be noted that in other embodiments, the housing 101 can also adopt other shapes of shell structures. The specific shape of the housing 101 can be adjusted as needed and is not limited here.

[0082] Reference Figure 2 In some embodiments, the cooking device 100 may be a drawer-type cooking device 100.

[0083] Specifically, the housing 101 of the drawer-type cooking appliance 100 is a drawer box 1011 structure. The housing 101 may include the drawer box 1011, and the aforementioned receiving cavity 1013 is formed inside the drawer box 1011.

[0084] Drawer box 1011 may be provided with drawer 1012. Drawer 1012 is provided inside drawer box 1011 in a pull-out manner. Drawer 1012 can be slidably and reciprocally arranged by means of guide rails provided on opposite side walls of drawer box 1011.

[0085] In this embodiment, the front end of the drawer box 1011 may be provided with a drawout opening (not shown in the figure), and the drawer 1012 can be slidably pushed into the drawer box 1011 through the drawout opening. The drawer 1012 can also be slidably pulled out from the drawout opening.

[0086] Continue to refer to Figure 1 In some embodiments, the cooking apparatus 100 may include at least one cooking device 10. The cooking device 10 is disposed in the receiving cavity 1013 and can be used for high-temperature cooking of food by means of steaming, baking, etc.

[0087] In this embodiment, the cooking device 10 is mounted on the drawer 1012, and the cooking device 10 can be pulled out and slid relative to the drawer box 1011 as the drawer 1012 moves.

[0088] In some embodiments, the cooking apparatus 10 may include a main body. A cooking cavity 11 is formed within the main body, which can be a cavity for holding food ingredients.

[0089] The cooking device 10 may include a heating component disposed within the cooking cavity 11 for heating and cooking the food within the cooking cavity 11.

[0090] The main body may include an inner pot, and the interior of the inner pot has a cooking cavity 11.

[0091] In this embodiment, reference Figure 4The heating assembly may include two metal plates 2. The two metal plates 2 are respectively disposed on opposite side walls of the cooking cavity 11, and the distance between corresponding points on the two metal plates 2 is the same. That is, in this embodiment, the two metal plates 2 are arranged parallel to each other along their length direction.

[0092] refer to Figure 3 The cooking device 100 may include a first power supply 20. The first power supply 20 is disposed in the receiving cavity 1013 and is connected to two metal plates 2, and is used to supply power to the two metal plates 2, that is, to provide working voltage, when the device is started.

[0093] When the first power supply 20 is started, the two metal plates 2 are energized and act as electrodes to apply an electric field to the food in the cooking cavity 11, so that current flows through the food and heat energy is generated to heat the food.

[0094] When the two metal plates 2 function as electrodes, they typically heat and cook the food by contacting its outer surface. Since the food itself is a conductor, when electricity is applied and current flows through it, electrical energy is converted into heat energy within the food, raising its temperature and thus directly achieving the purpose of cooking.

[0095] The heating method using two electrodes can meet the cooking conditions of fluid ingredients and ensure the uniformity of cooking.

[0096] When the ingredients are not fluid (solid ingredients), if the first power supply 20 is still turned on and the ingredients are heated by energizing the electrodes, it is very easy to cause problems such as poor cooking uniformity and poor cooking effect.

[0097] Specifically, non-flowing food cannot fully contact the two metal plates 2. If the food has an irregular shape or significant surface differences, the contact area between the electrodes and the food may be uneven, resulting in uneven current distribution. Some areas may not receive sufficient current due to insufficient contact, while other areas may be heated by excessive current, leading to uneven heating.

[0098] In addition, the differences in conductivity between different ingredients can cause them to encounter varying resistances when current passes through them. These differences affect the current's propagation within the food, resulting in an uneven electric field. This can cause some parts to overheat while others remain underheated, leading to poor heating uniformity and negatively impacting the cooking results.

[0099] In other embodiments of this application, in order to address the problem of poor cooking uniformity and poor cooking effect when the two metal plates 2 are used as electrodes for solid food, reference is made to... Figure 4 , Figure 5The cooking apparatus 10 may include a needle-level heating plate 9, which has a plurality of heating needles 92.

[0100] The heating needle 92 is electrically connected to the corresponding metal plate 2 and the free end of the heating needle 92 is located inside the cooking cavity 11. The heating needle 92 can contact and insert into the interior of the food when the first power supply 20 starts cooking, so that the heat can be more distributed in all parts of the food, overcoming the problem of poor cooking effect caused by uneven contact and different resistance.

[0101] Specifically, when the first power supply 20 is turned on, it supplies power to the two metal plates 2. At this time, the heating needle 92 is inserted into the food while energized, which increases the contact area between the electrode and the food, so that the heating needle 92 can heat the inside of the food.

[0102] In this embodiment, the needle-level heating plate 9 may include a plurality of evenly arranged heating needles 92. When cooking food, the multiple evenly distributed heating needles 92 can penetrate into the food, making the current path more dispersed and uniform, thereby allowing more current to flow through the food, resulting in more even heating and improved cooking performance.

[0103] It is understandable that even arrangement means that several heating needles 92 maintain the same spacing.

[0104] It should be noted that the spacing between the heating needles 91 can be specifically designed according to the size of the cooking cavity, the size and shape of the ingredients, and the electric field strength.

[0105] In some embodiments, the main body may include an inner liner 1, which is detachably installed in the base 3.

[0106] The inner liner 1 is defined with a cooking cavity 11 for holding food. The top of the cooking cavity 11 may be provided with an opening for food to be put into or taken out of the cooking cavity 11.

[0107] Metal plates 2 are disposed on two opposite first side plates 12 of the inner pot 1 for cooking food after power is applied.

[0108] In this embodiment, the first side plate 12 extends along the length of the cooking cavity 11, and two metal plates 2 are respectively disposed on the left and right sides of the first side plate 12. The length of the metal plates 2 is slightly smaller than the length of the second side plate 32. This arrangement ensures that the metal plates 2 cover the entire area of ​​one side of the cooking cavity 11, guaranteeing uniform cooking.

[0109] In some embodiments, two needle-level heating plates 9 are provided, and the two needle-level heating plates 9 are detachably connected to the inner liner 1 corresponding to two metal plates 2.

[0110] In this embodiment, the needle-level heating plate 9 is designed to be detachable, allowing it to be removed separately for easy cleaning and maintenance by the user.

[0111] In some embodiments, the free ends of the heating needles 92 on the needle-level heating plate 9 can be on the same plane. That is, this arrangement can ensure that the heating needles 92 are evenly inserted into the food, further ensuring the uniformity of food cooking.

[0112] In some other embodiments, the heating needles 92 on the needle-level heating plate 9 can be retractable.

[0113] In some embodiments, reference Figure 7 One heating needle 92 on one of the needle-level heating plates is defined as the first heating needle 921, and the other heating needle 92 on the other needle-level heating plate is defined as the second heating needle 922. The first heating needle 921 and the second heating needle 922 are arranged alternately.

[0114] By staggering the first heating needle 921 and the second heating needle 922, a more uniform distribution of the electric field within the food can be ensured, resulting in more balanced heat transfer and further improving cooking uniformity.

[0115] In this embodiment, on a cross-section perpendicular to the length of the inner liner 1, the first heating needle 921 and the second heating needle 922 on the left and right needle-level heating plates 9 are arranged alternately. Similarly, on a cross-section perpendicular to the height of the inner liner 1, the first heating needle 921 and the second heating needle 922 on the left and right needle-level heating plates 9 are arranged alternately.

[0116] In some embodiments, the diameter of the heating needle 92 is d. Where d ≤ 5 mm or d ≥ 2 mm.

[0117] By reasonably setting the diameter of the heating needle 92, it is possible to avoid the heating needle 92 being too thick, which would affect the convenience of inserting food, and also to prevent the heating needle 92 being too thin, which could injure the user.

[0118] The diameter of the heating needle 92 should not be too large. An excessively large heating needle 92 will increase friction during insertion, affecting the ease of adding food and potentially causing solid food to break. To facilitate insertion, the diameter of the heating needle 92 should not exceed the first parameter value. For example, the first parameter value can be 5mm to 7mm. A suitable specific parameter should be selected during the design process.

[0119] The diameter of the heating needle 92 cannot be too small. If it is too small, it may encounter resistance when inserting it to cook harder ingredients, making operation difficult or even preventing complete insertion. Furthermore, improper operation or cleaning could pose a risk of injury to the user, and it is also inconvenient for daily cleaning and maintenance. To improve safety and convenience during use, the diameter of the heating needle 92 is set to be no less than the second parameter value. For example, the second parameter value can be 2mm to 2.5mm. A suitable specific parameter should be selected during the design process.

[0120] In some embodiments, the needle-level heating plate 9 may include a substrate 91. (Reference) Figure 6 The two substrates 91 are detachably connected to the two side surfaces of the two first side plates 12 that are far apart from each other.

[0121] In other words, reference Figure 24 The two sides of the first side plate 12 in the thickness direction are respectively provided with a metal plate 2 and a substrate 91.

[0122] In this embodiment, the detachable design of the substrate 91 allows for installation or removal according to different ingredients or cooking needs, increasing the flexibility and applicability of the equipment and facilitating the cleaning of the needle-level heating plate 9. Furthermore, the substrate 91's location outside the cooking cavity 11 further simplifies the installation and removal process of the needle-level heating plate 9.

[0123] A groove structure is provided on the side of the first side plate 12 away from the metal plate 2, and the substrate 91 is accommodated in the groove structure. The outer side of the substrate 91 can be flush with the outer side of the first side plate 12.

[0124] In some embodiments, the heating pin 92 is vertically connected to the side of the substrate 91 near the metal plate 2. This arrangement makes it easier to insert and remove the heating pin 92, helping to ensure that the heating pin 92 can be evenly inserted into the food and maintain a consistent surface area in contact with the food.

[0125] The heating pins 92 arranged on the vertical substrate 91 can be directly inserted into the food at different depths, thereby achieving a more uniform heat distribution and avoiding the problem of some parts of the food being overheated while other parts are not fully heated, thus satisfying the cooking needs of more different types of food.

[0126] refer to Figure 5 , Figure 6 A second through hole 911 is provided on the substrate 91. The second through hole 911 allows the electrical terminal 6 on the metal plate 2 to pass through, and the electrical terminal 6 extends through the second through hole 911 to the outside of the cooking cavity 11 for contacting the elastic contact 51.

[0127] refer to Figure 8The first side plate 12 is provided with a first through hole 122 for the heating needle 92 to pass through, and the metal plate 2 on the same side is provided with a second through hole 21 for the heating needle 92 to pass through. The heating needle 92 passes through the corresponding first through hole 122 and second through hole 21 in sequence and extends into the cooking cavity 11. It is used to insert into the food while it is charged during cooking, which avoids the limitation of traditional heating plates that can only heat the surface and improves the uniformity of cooking. It is especially suitable for cooking thicker or irregularly shaped food.

[0128] In actual cooking control, the heating intensity of the heating needle 92 can also be adjusted by the change in the resistance of the ingredients, overcoming the problem of poor cooking effect caused by uneven contact or different resistance in traditional heating methods.

[0129] refer to Figure 10 In some embodiments, the two substrates 91 may be made of metal material, and conductive portions 93 are protruding on the side surfaces of the two metal plates 2 that are far apart from each other. The conductive portions 93 penetrate the corresponding first side plate 12 and abut against the corresponding substrate 91 to form an electrical connection.

[0130] This configuration allows the metal plate 2 to be electrically connected to the external needle plate via the protruding conductive part 93 when it is energized, thereby energizing the substrate 91 and ensuring that the heating needles 92 are energized.

[0131] Of course, in some other embodiments, the substrate 91 can be made of plastic material. The metal plate 2 is provided with a plurality of second through holes 21 corresponding to the plurality of heating needles 92, and the plurality of heating needles 92 are inserted into the second through holes 21 one by one, and the heating needles 92 are connected to the inner wall of the corresponding second through holes 21 so that the heating needles 92 and the metal plate 2 are electrically connected.

[0132] In this embodiment, the heating needle 92 is directly electrically connected to the metal plate 2, which reduces the transmission process of current in the intermediate medium, reduces energy loss, improves heating efficiency, and ensures that the food is heated quickly and evenly.

[0133] Continue to refer to Figure 7 , Figure 8 In some embodiments, a second sealing member 72 is provided between the substrate 91 and the first side plate 12. The second sealing member 72 is used to seal the gap between the substrate 91 and the first side plate 12 to prevent the overflow of flowing food during cooking.

[0134] refer to Figure 12 In some embodiments, when the inner liner 1 is assembled in the base 3, the top of the second side plate 32 is higher than the top of the needle-level heating plate 9.

[0135] In the above embodiment, the height of the base 3 is set to be higher than the height of the needle-level heating plate 9 to prevent the user from contacting the needle-level heating plate 9 when taking out the inner liner 1, thereby reducing the risk of burns and improving electrical safety performance.

[0136] Of course, in some other embodiments, when the needle-level heating plate 9 is installed on the inner pot 1, the second power supply 4 can also be activated to heat the food inside the cooking cavity 11. At this time, the energized heating needle 92 can transfer the heat it generates to the interior of the food, which helps to improve the uniformity of cooking.

[0137] In some other embodiments, each metal plate 2 may be electrically connected to a plurality of heating needles 92. The plurality of heating needles 92 are located inside the cooking cavity 11 and are used to insert into the interior of the food during cooking.

[0138] In some other embodiments, the cooking apparatus 10 may include a temperature sensor. The temperature sensor employs a temperature probe structure inserted into the food to monitor the temperature of the portion in contact with the food in real time. Based on the feedback temperature information, the current or heating time can be dynamically adjusted to achieve a more uniform heating effect.

[0139] The main body may include a base 3, and the interior of the base 3 is hollow, defining an installation cavity 31 for accommodating the inner liner 1.

[0140] refer to Figure 9 The top of the base 3 has an opening, through which the inner liner 1 can be installed into the base 3 or removed from the base 3. The base 3 can be a rectangular hollow structure.

[0141] In this embodiment, the base 3 is fixedly connected to the drawer 1012. The base 3 can be rectangular, and the two second power supplies 4 are installed on the left and right side walls of the base 3, corresponding to the two metal plates 2.

[0142] In some embodiments, the main body may include a power terminal 6. The power terminal 6 is disposed on the first side plate 12 and is connected to the metal plate 2.

[0143] In this embodiment, an electrical terminal 6 is provided to allow the current output from the first power source outside the cooking cavity 11 to be introduced into the metal plate 2. It is understood that the connection between the electrical terminal 6 and the metal plate 2 is an electrical connection, allowing current to be introduced into the metal plate 2, thus enabling the metal plate 2 to heat normally and heat the food inside the cooking cavity 11.

[0144] In some embodiments, the cooking apparatus 10 may include a power receiving part disposed on the main body. A first power source 20 is connected to two metal plates 2 through the power receiving part to supply power to the two metal plates 2 when the first power source 20 is activated.

[0145] In some other embodiments, the first power supply 20 is connected to two metal plates 2 via a connecting part to form a first power supply circuit. Specifically, the two output terminals of the first power supply 20 are respectively connected to two metal plates 2 arranged opposite each other via the connecting part.

[0146] When the first power supply 20 is started, the first power supply circuit is turned on to apply electrical energy to the two metal plates 2 in the cooking device 10, so that the two metal plates 2 are energized and work as electrodes to apply an electric field to the food in the cooking cavity 11, so that current flows through the food and heat energy is generated.

[0147] Furthermore, the power connection part is disposed on the base 3, and the power connection part has a plurality of resilient contacts 51 located in the base 3. (See reference) Figure 9 The elastic contact 51 protrudes from the side wall of the base 3 toward the center of the base 3.

[0148] When the inner liner 1 is installed on the base 3, the power terminal 6 and the elastic contact 51 make corresponding contact to form an electrical connection. The metal plate 2 is electrically connected to the elastic contact 51 via the power terminal 6. After the inner liner 1 is removed, the power terminal 6 and the elastic contact 51 are disconnected, so that the metal plate 2 is not connected to the first power supply circuit.

[0149] In this embodiment, after the inner liner 1 is disassembled, the metal plate 2 is disconnected from the elastic contact 51 of the power supply part, which prevents the first power supply circuit from being connected after the corresponding power is started. This not only prevents accidental heating after the inner liner 1 is disassembled or not installed correctly, increasing safety during use, but also ensures safety, ensuring that users will not encounter safety hazards due to contact with the power supply part when cleaning or handling the inner liner 1.

[0150] In some embodiments, the base 3 may include two second side plates 32 disposed opposite to each other. The second side plates 32 are disposed opposite to the first side plate 12 and extend along the length direction of the cooking cavity 11.

[0151] refer to Figures 23-26 In some embodiments, the power receiving part may include a plurality of springs 5, and the plurality of springs 5 ​​are connected one-to-one with a plurality of power receiving terminals 6.

[0152] The spring 5 is a flexible cantilever structure. One end of the spring 5 is a conductive end 52 and the conductive end 52 is fixed relative to the second side plate 32. The other end of the spring 5 has the aforementioned elastic contact 51.

[0153] In this embodiment, the two output terminals of the first power supply 20 are respectively connected to two conductive terminals 52 on the left and right sides. That is, one output terminal of the first power supply 20 is connected to any conductive terminal 52 on one of the second side plates 32, and the other output terminal of the first power supply 20 is connected to any conductive terminal 52 on the other second side plate 32.

[0154] In this embodiment, when the inner liner 1 is assembled in the mounting cavity 31, the power terminal 6 and the elastic contact 51 abut against each other to form an electrical connection; after the inner liner 1 is disassembled, the power terminal 6 and the elastic contact 51 are disconnected.

[0155] By setting the spring 5, a stable and constant contact pressure can be ensured between it and the power terminal 6, guaranteeing stable electrical conduction between the power terminal 6 and the first power source 20. This effectively avoids the problem of short circuit or poor contact between the power terminal 6 and the external power source when the inner liner 1 is disassembled or installed.

[0156] In addition, even with slight wear or deformation during use, the spring 5 can still maintain sufficient contact force to provide a stable and reliable electrical connection.

[0157] In other embodiments of this application, in order to solve the problem of the single heating function of the existing cooking equipment 100 and to meet the requirement of uniform cooking of ingredients with different shapes, refer to Figure 13 The cooking device 10 may include a second power source 4.

[0158] The second power source 4 is connected to the individual metal plate 2 to supply power to the individual metal plate 2. When the second power source 4 is activated, the metal plate 2 connected to it is energized and used as a heating plate to heat the food in the cooking cavity 11, thus enabling the cooking cavity 11 to have two heating modes.

[0159] Specifically, the cooking device 10 may include two second power sources 4. The two second power sources 4 are disposed on the main body corresponding to two metal plates 2, and the two second power sources 4 are located outside the cooking cavity 11.

[0160] In this embodiment, two second power sources 4 are respectively disposed on the left and right sides of the main body. Each second power source 4 can be connected to the corresponding metal plate 2 through the power receiving part to form a second power supply circuit.

[0161] When the second power supply 4 is started, the second power supply circuit is turned on to apply electrical energy to the metal plate 2 connected to it, so that the metal plate 2 works as a heating plate after being energized to provide heat to the food in the cooking cavity 11 to heat the food.

[0162] In this embodiment, by setting up a first power supply circuit and a second power supply circuit, a cooking cavity 11 can have at least two cooking and heating methods for different ingredients. In actual use, the cooking device 100 can activate or switch between different or optimal cooking and heating methods according to different ingredients, making the different ingredients heated more evenly. This not only effectively shortens the cooking time but also allows the ingredients to achieve the best cooking results.

[0163] It should be noted that by setting two secondary power sources 4, it is possible to determine whether to start heating with one heating plate on one side, heating with both heating plates on both sides simultaneously, or heating intermittently, depending on the type, quantity, and location of the ingredients, so as to achieve the cooking conditions required for the ingredients.

[0164] In this embodiment, by providing a first power supply 20 and a second power supply 4 connected to the two metal plates 2, a cooking cavity 11 can have at least two cooking and heating methods for different ingredients. In actual use, the cooking device 100 can activate or switch between different or optimal cooking and heating methods according to different ingredients, resulting in more even heating of different ingredients. This not only effectively shortens the cooking time but also allows the ingredients to achieve the best cooking effect.

[0165] For example, when cooking ingredients that are fluid, the first power supply 20 can be activated. At this time, the metal plates 2 on both sides are used as two electrodes. The ingredients themselves are conductors. When electricity is applied, the current passes through the ingredients, and the electrical energy is converted into heat energy inside the food, raising the temperature of the ingredients and thus achieving the purpose of directly cooking the ingredients.

[0166] When the food being cooked is not fluid, it cannot fully contact the side plates. In this case, the second power supply 4 can be activated, turning the metal plates 2 on both sides into heating plates. For food requiring rapid, high-temperature cooking, both second power supplies 4 are activated, ensuring both heating plates heat up for high efficiency. For food requiring slow, low-temperature cooking, only one side of the second power supply 4 needs to be activated to achieve the desired cooking conditions.

[0167] In this embodiment, the second power supply 4 is installed on the second side plate 32 to facilitate the connection between the second power supply 4 and the power receiving part.

[0168] The two output terminals of the second power supply 4 are respectively connected to the two conductive terminals 52 on the second side plate 32. This arrangement allows the second power supply 4 to supply power to a single metal plate 2, enabling the energized metal plate 2 to be used as a heating plate.

[0169] It is understood that in this embodiment, each second side plate 32 is provided with two spring contacts 5. That is, the power receiving part may include four spring contacts 5 for electrical connection with the first power supply 20 and the second power supply 4.

[0170] Further reference Figure 14 Two electrical terminals 6 are provided on the side of the metal plate 2 away from the center of the cooking cavity 11, and the two electrical terminals 6 are arranged at intervals along the length of the metal plate 2.

[0171] refer to Figure 20 The first side plate 12 is provided with an open receiving part 14 on the side away from the inner liner 1, and the second power supply 4 is placed in the receiving part 14 through the open.

[0172] Multiple latching structures 15 are provided at the opening of the receiving part 14. After the second power supply 4 is installed, the latching structures 15 engage with the side of the second power supply 4 away from the receiving part 14 to prevent the second power supply 4 from coming out of the opening.

[0173] The receiving portion 14 is provided with a plurality of limiting portions 16, which are located at both ends of the second power supply 4 in a first direction, to limit the movement of the second power supply 4 in the first direction. The first direction can be the length direction of the second power supply 4 or the width direction of the second power supply 4.

[0174] In some embodiments, the metal plate 2 is detachably connected to the first side plate 12 by fasteners, which extend through the first side plate 12 to the outside of the cooking cavity 11 to form an electrical terminal 6.

[0175] In this embodiment, fasteners are used to achieve a detachable connection of the metal plate 2, which facilitates the disassembly and cleaning of the metal plate 2 while ensuring the connection strength between the metal plate 2 and the first side plate 12, ensuring that the metal plate 2 is stably installed in the correct position and is not easy to loosen.

[0176] The fasteners extend to the outside of the cooking cavity 11, which not only serve to fix the metal plate 2, but also form an electrical terminal 6 that connects to the elastic contact 51 to realize the function of electrical connection, simplifying the structural design and saving space and cost.

[0177] It should be noted that the fastener can be a bolt or a threaded post, so that the metal plate 2 is screwed onto the first side plate 12.

[0178] refer to Figure 24 The first side plate 12 is provided with a first through hole 121 through which the power terminal 6 passes. The outer periphery of the power terminal 6 is provided with a first sealing member 71, which is interference-fitted in the first through hole 121.

[0179] In this embodiment, by providing the first sealing element 71, it is possible to prevent flowing ingredients from overflowing from the first through hole 121 to the outside of the cooking cavity 11 when cooking; in addition, this setting allows the metal plate 2 to be removed for easy cleaning.

[0180] In some embodiments, the first side plate 12 is recessed on the side facing the cooking cavity 11, and the metal plate 2 is embedded in the receiving portion 13.

[0181] The receiving part 13 has a recessed structure. By embedding the metal plate 2 into the recessed structure on the first side plate 12, the space of the entire cooking cavity 11 is not affected, the cooking area is increased, and the hidden design makes the cooking device 100 achieve a smoother and more natural experience in terms of both appearance and use.

[0182] refer to Figure 25 One end of the spring sheet 5 is provided with an arc-shaped part 53, which protrudes toward the cooking cavity 11 and is defined by a pressing process to form an elastic contact point 51.

[0183] In this embodiment, a pressing process is provided on the arc-shaped portion 53, which ensures both structural strength and the reliability of elasticity. When the inner liner 1 is installed inside the base 3, the electrical terminal 6 abuts against the elastic contact 51 of the spring piece 5. The arc-shaped portion can better distribute stress, ensuring a stable electrical connection.

[0184] In some embodiments, the end of the electrical terminal 6 away from the metal plate 2 is provided with a rounded corner to ensure smooth contact with the elastic contact 51, thereby ensuring reliable contact and further providing a stable and reliable electrical connection.

[0185] refer to Figure 26 In some embodiments, the second side plate 32 is provided with a mounting part 33 for accommodating the spring piece 5. The mounting part 33 connects the mounting cavity 31 and the accommodating cavity 1013. A limiting countersunk platform 34 is provided at one end of the mounting part 33 away from the mounting cavity 31. The conductive end 52 is detachably connected to the limiting countersunk platform 34.

[0186] The limiting platform 34 may be provided with a connection hole 341, and the conductive end 52 can be detachably connected to the connection hole 341 by screws.

[0187] In this embodiment, by setting a limiting sink 34, it is ensured that the spring piece 5 will not deform or detach from the plane when compressed by the resisting force, thus increasing the reliability of the spring piece 5.

[0188] refer to Figure 27 In some embodiments, the main body may include a cover plate 8, which is placed on the inner pot 1 to close the cooking cavity 11.

[0189] The cover plate 8 has two recessed handles 82 and grooves 81 that are recessed towards the cooking cavity 11. (Reference) Figure 28 There are two handle slots 82 and the two handle slots 81 are spaced apart along the width direction of the cover plate 8.

[0190] A handle 82 is provided between the two handles 82 and the slot 81, and the handle 82 is provided for the user to pick up and hold.

[0191] The top surface of the handle 82 is on the same plane as the top surface of the cover plate 8, and the two opposite ends of the handle 82 extend into the handle 82 groove 81, preventing the user's hand from slipping out while picking up the cover plate 8. In this embodiment, the two handles 82 grooves 81 are arranged on the left and right sides for easy access by the user.

[0192] In this embodiment, the handle 82 groove 81 is recessed towards the cooking cavity 11, giving the handle 82 a hidden, embedded effect. The hidden handle 82 design makes the cover 8 and the cooking device 100 appear simpler and more aesthetically pleasing, avoiding exposed extra parts and reducing visual clutter. At the same time, the handle 82 is integrated with the cover 8, making it convenient for the user to pick up.

[0193] refer to Figure 29 In some embodiments, the width dimension of the handle 82 slot 81 is W. The height dimension of the handle 82 slot 81 is H. Wherein, W≥15mm and H≥20mm.

[0194] It is understandable that the width direction of the handle 82 groove 81 is the same as the width direction of the cover plate 8.

[0195] In this embodiment, by reasonably setting the width W and height H of the handle 82 slot 81, the user's fingers can be placed more comfortably, thus improving the user experience.

[0196] The width of the handle 82 slot 81 should not be too small. An excessively small width may make it difficult for users to smoothly insert their fingers into the handle 82 slot 81, especially for users with larger or thicker fingers, potentially causing discomfort or operational difficulties. To ensure comfort, the width should be set to be no less than the first parameter value, guaranteeing that the user's fingers can easily fit into the handle 82 slot 81. For example, the first parameter value can be 15mm to 20mm; a suitable parameter should be selected during the specific design process.

[0197] The width of the handle 82 slot 81 should not be too small. If the width is too small, it may be difficult for the user to insert their fingers into the handle 82 slot 81 smoothly, especially for users with thicker or larger fingers, which may cause discomfort or difficulty in operation. In addition, if the width is too small, the user will not be able to grip the handle 82 firmly, and when opening and closing the cooking cavity 11, it is easy to slip or lose control, affecting the safety and smoothness of use.

[0198] To ensure comfort, the width dimension is set to be no less than the first parameter value, ensuring that the user's fingers can be easily placed into the handle 82 slot 81, so that the user can firmly grip the handle 82. For example, the first parameter value can be 15mm~20mm. When designing, consider choosing a suitable parameter.

[0199] The height of the handle 82 slot 81 should not be too small. If the height is too small, the user's fingers may not be able to be fully inserted into the handle 82 slot 81, which may make it difficult to apply enough force when picking up the cover plate 8, resulting in unsmooth operation or jamming.

[0200] To improve user experience and operational safety, the height dimension should be set to be no less than the second parameter value. For example, the second parameter value can be 20mm to 25mm; a suitable parameter should be selected during the specific design process.

[0201] In some embodiments, the cooking device 100 may include a controller. The controller may be disposed within the receiving cavity 1013. The controller may be used to control the operation of a first power supply 20 and a second power supply 4 of the receiving cavity 1013.

[0202] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0203] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A cooking device, characterized in that, include: The outer shell has a cavity inside; A first power source is located within the receiving cavity; At least one cooking device is disposed in the receiving cavity, the cooking device comprising: The inner pot has a cooking cavity inside for holding food, and the inner pot has two opposing first side plates; Two metal plates are respectively disposed on the mutually facing sides of the two first side plates and in contact with the food. The two metal plates are electrically connected to the first power source to generate an electric field acting on the food. Two needle-level heating plates, corresponding to the two metal plates, are detachably connected to the inner liner. The needle-level heating plates include spaced-apart components: Several heating pins are electrically connected to the corresponding metal plates. The free ends of the heating pins are located inside the cooking cavity and are used to contact and insert into the interior of the food after being powered on.

2. The cooking apparatus according to claim 1, characterized in that, The heating needle on one of the needle-level heating plates is defined as the first heating needle, and the heating needle on the other needle-level heating plate is defined as the second heating needle. The first heating needle and the second heating needle are arranged alternately.

3. The cooking apparatus according to claim 1, characterized in that, The diameter of the heating needle is d, where d≤5mm and d≥2mm.

4. The cooking apparatus according to claim 1, characterized in that, The needle-level heating plate includes a base plate, which is detachably connected to the side of the first side plate away from the metal plate, and a plurality of heating needles are evenly arranged and vertically connected to the side of the base plate close to the metal plate. The first side plate is provided with a first through hole for the heating needle to pass through, and the metal plate is provided with a second through hole for the heating needle to pass through. The heating needle passes through the corresponding first through hole and second through hole in sequence and extends into the cooking cavity.

5. The cooking apparatus according to claim 4, characterized in that, The substrate is made of metal material, and conductive parts are protruding on the opposite sides of the two metal plates. The conductive parts extend through the corresponding first side plates and abut against the substrate to form an electrical connection between the heating needle and the corresponding side plate.

6. The cooking apparatus according to claim 4, characterized in that, The heating needle is connected to the inner wall of the second perforation so that the heating needle and the metal plate are electrically connected.

7. The cooking apparatus according to claim 4, characterized in that, A second sealing element is provided between the substrate and the first side plate.

8. The cooking apparatus according to any one of claims 1 to 7, characterized in that, The cooking device also includes: The base has an internally defined mounting cavity for mounting the inner liner, and the top of the base has an opening; A power terminal is provided on the first side plate, and one end of the power terminal is connected to the metal plate; Two spring contacts are respectively disposed on the opposite second side plates of the base. One end of each spring contact is a conductive end and is fixed relative to the second side plate, while the other end extends into the mounting cavity to form an elastic contact. The two conductive terminals are respectively connected to the two output terminals of the first power supply; when the inner liner is assembled in the mounting cavity, the power receiving terminal and the elastic contact are correspondingly abutted to form an electrical connection; after the inner liner is disassembled, the power receiving terminal and the elastic contact are disconnected.

9. The cooking apparatus according to claim 8, characterized in that, After the inner liner is assembled, the top of the second side plate is higher than the top of the needle-level heating plate.

10. A cooking device, characterized in that, include: The outer shell has a cavity inside; A first power source is located within the receiving cavity; At least one cooking device is disposed in the receiving cavity, the cooking device comprising: The inner pot has a cooking cavity inside for holding food, and the inner pot has two opposing first side plates; Two metal plates are respectively disposed on the mutually facing sides of the two first side plates and in contact with the food. The two metal plates are electrically connected to the first power source to generate an electric field acting on the food. The metal plate is electrically connected to several heating pins, which are located in the cooking cavity and are used to contact and insert into the interior of the food after being powered on.

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