Electric cooking pot

Abstract

The utility model discloses an electric cooking pot, electric cooking pot includes: cooking main part, cooking main part includes the kettle body, and the kettle body is rectangular kettle body, heating device, heating device is located kettle body below and includes: install shell, install shell includes the separately formed heat conduction plate and bearing plate, and heat conduction plate is used for with the contact of electric cooking pot's kettle body, and the face of heat conduction plate and kettle body contact is rectangular, and bearing plate is connected in the below of heat conduction plate and with heat conduction plate between and defines install cavity, heating plate, heating plate is located install cavity and with heat conduction plate contact, to with the heat conduction of heat plate to heat conduction plate. According to the heating device of the utility model embodiment, by assembling heat conduction plate and bearing plate together to form install shell, can improve the production efficiency of heating device and reduce the production cost of heating device, and heating plate can even heat and even heat conduction to kettle body through heat conduction plate, can improve the cooking effect of electric cooking pot.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an electric cooking pot. Background Technology

[0002] Electric heating plates are a common heating component in electric cookers such as electric pressure cookers. In existing technologies, heating plates generally use heating elements as their heat source to heat the pot body. This results in numerous unheated gaps within the heat source, reducing the uniformity of heating and consequently affecting the cooking performance of the electric cooker. Furthermore, current heating plates are typically manufactured using a casting process, leading to low production efficiency and high material costs, indicating room for improvement. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an electric cooking pot that can improve the uniformity of heating the pot body, resulting in better cooking effects, while also being highly efficient and low in cost.

[0004] An electric cooking pot according to an embodiment of the present invention includes: a cooking body, the cooking body including a pot body, the pot body being rectangular; a heating device, the heating device being disposed below the pot body and including: a mounting shell, the mounting shell including a separately formed heat-conducting plate and a support plate, the heat-conducting plate being used to contact the rectangular pot body of the electric cooking pot, the surface of the heat-conducting plate contacting the pot body being rectangular, the support plate being connected below the heat-conducting plate and defining a mounting cavity between the support plate and the heat-conducting plate; a heating plate, the heating plate being disposed within the mounting cavity and contacting the heat-conducting plate to conduct heat to the heat-conducting plate; wherein, the mounting shell may have a mounting hole in the middle, the mounting cavity being disposed around the outer periphery of the mounting hole, a temperature measuring element being disposed at the mounting hole for monitoring the temperature of the pot body, the heating plate being rectangular, the heating plate having a through hole corresponding to the mounting hole, the heating plate including a heating wire, the heating wire being coiled around the outer edge of the heating plate and disposed between the through hole.

[0005] According to the heating device of this utility model embodiment, by setting a heat-conducting plate and a support plate, and assembling the heat-conducting plate and the support plate together to form a mounting shell, the production efficiency of the mounting shell can be improved and the production cost of the mounting shell can be reduced, thereby improving the production efficiency of the heating device and reducing the production cost of the heating device. Furthermore, by setting a heating plate between the heat-conducting plate and the support plate, the heating plate can generate heat evenly and the heat can be evenly conducted to the pot body through the heat-conducting plate, improving the uniformity of heating of the heating device, thereby improving the uniformity of heating of the pot body, improving the heating effect of the pot body, improving the cooking effect of the electric cooking pot, and improving the user experience. In addition, the heating plate is composed of a coiled heating wire, which, compared to the heating tube in the existing electric heating plate structure, eliminates the need for insulating material to insulate and protect the heating wire in the heating tube, further simplifying the manufacturing process and reducing the overall height of the heating device. The heating wire is coiled around the circumference of the heating plate, which is rectangular. The surface of the heat-conducting plate that contacts the pot body is also rectangular, so that the heat from the heating wire can be evenly conducted to the pot body through the heat-conducting plate, reducing the problem of insufficient heat transfer at the corners of the rectangular pot body.

[0006] According to some embodiments of this utility model, the projected area of ​​the heating wire on the heating plate is greater than 0.8 times the surface area of ​​the heating plate; and / or, the equivalent diameter of the heating wire is 0.5mm-1mm; and / or, the heating plate is a rounded rectangular plate, and the heating wire includes: a plurality of first heating segments and a plurality of second heating segments, the plurality of first heating segments are arranged in the length direction of the heating plate and each first heating segment extends along the width direction of the heating plate, the plurality of second heating segments are arranged in the width direction of the heating plate and each second heating segment extends along the length direction of the heating plate, the plurality of first heating segments and the plurality of second heating segments are alternately connected end to end, the distance between two adjacent first heating segments is greater than 4mm, and the distance between two adjacent second heating segments is greater than 3mm.

[0007] According to some embodiments of the present invention, one of the heat-conducting plate and the supporting plate has a first flange on its edge, and the edge of the other of the heat-conducting plate and the supporting plate cooperates with the first flange.

[0008] In some embodiments, the edge of the other of the heat-conducting plate and the carrier plate has a second flange, which cooperates with the first flange.

[0009] In some embodiments, one of the first flange and the second flange defines a slot, and the other of the first flange and the second flange engages with the slot; and / or, the heat-conducting plate includes a heat plate body and the first flange, the first flange being connected to the edge of the heat plate body and including: a first vertical extension, a second vertical extension, and a transition extension, the upper end of the first vertical extension being connected to the heat plate body, the second vertical extension being spaced apart on one side of the first vertical extension, the transition extension being connected between the lower end of the first vertical extension and the lower end of the second vertical extension, and the three together forming a slot open to the heat plate body, the second flange extending downward and engaging with the slot.

[0010] According to some embodiments of the present invention, the heat-conducting plate is a stamped part; and / or, the bearing plate is a stamped part; and / or, the heat-conducting plate and the bearing plate are connected together by a snap-fit ​​or riveting method.

[0011] According to some embodiments of the present invention, the bearing plate has a structural reinforcement portion, which includes a reinforcing recess and / or a reinforcing protrusion; or, the structural reinforcement portion includes: a plurality of first ribs and a plurality of second ribs, wherein the plurality of first ribs are arranged circumferentially at intervals in the central region of the bearing plate, each first rib extends in a direction away from the central region, and any two adjacent first ribs are connected by at least one second rib.

[0012] In some embodiments, the support plate has a plurality of guide posts on the side opposite to the heat-conducting plate, the plurality of guide posts being spaced apart on the outer periphery of the mounting hole, and the temperature measuring element moving up and down relative to the mounting shell under the guidance of the plurality of guide posts; and / or, the distance between the outer peripheral wall of the temperature measuring element and the hole wall of the mounting hole is L1, L1>5mm; and / or, at least part of the surface of the heat-conducting plate on the side opposite to the support plate gradually extends downward in a direction away from the mounting hole, and the heating plate matches the shape of the heat-conducting plate.

[0013] According to some embodiments of the present invention, the electric cooking pot further includes an elastic component and a pressure detection component. A heating plate column and a pressure sensing column are provided on the side of the support plate away from the heat-conducting plate. The heating plate column is used to cooperate with the elastic component to drive the elastic component to undergo elastic deformation when the electric cooking pot is pressurized. The pressure sensing column is used to cooperate with the pressure detection component to detect the pressure inside the pot by sensing the deformation of the elastic component. The distance between the heating plate column and the pressure sensing column is L2, where L2 < 10 mm.

[0014] According to some embodiments of the present invention, a first insulating part is provided between the heating plate and the heat-conducting plate, and a second insulating part is provided between the heating plate and the supporting plate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a cross-sectional view of a heating device according to some embodiments of the present invention;

[0018] Figure 2 yes Figure 1 Enlarged view of the A-structure in the middle;

[0019] Figure 3 yes Figure 1 Enlarged view of the B-structure;

[0020] Figure 4 This is a partial exploded view of a heating device according to some embodiments of the present invention;

[0021] Figure 5 This is a structural schematic diagram of a support plate according to some embodiments of the present utility model;

[0022] Figure 6 This is a schematic diagram of the structure of a heating plate according to some embodiments of the present invention.

[0023] Figure label:

[0024] Heating device 100,

[0025] Mounting housing 10, mounting hole 101, heating plate 20, heating wire 21, first heating section 211, second heating section 212, temperature measuring element 30, limiting plate 31, spring 40, first insulating part 50, second insulating part 60.

[0026] Heat-conducting plate 11, first flange 111, first vertical extension 1111, second vertical extension 1112, transition extension 1113, heat plate body 112.

[0027] Support plate 12, second flange 121, structural reinforcement 122, first rib 1221, second rib 1222, guide column 123, hot plate column 124, pressure sensing column 125. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following is for reference. Figures 1-6 This invention describes an electric cooking pot according to an embodiment of the present invention.

[0032] like Figures 1-6 As shown, the electric cooking pot according to an embodiment of the present invention includes: a cooking body and a heating device. The cooking body may include a pot body (not shown in the figure). The pot body may be a rectangular pot body. The heating device 100 may be located below the pot body. For example, the bottom of the inner side of the pot body may be rectangular, or the bottom of the entire pot body may be rectangular, which is convenient for processing. The four corners of the rectangle may be rounded, which can reduce stress concentration and improve the service life of the electric cooking pot.

[0033] The heating device 100 may include a mounting shell 10 and a heating plate 20. The mounting shell 10 may include a separately formed heat-conducting plate 11 and a support plate 12. The heat-conducting plate 11 can contact the pot body of the electric cooking pot, and the surface of the heat-conducting plate 11 in contact with the pot body can be rectangular, so that the heat-conducting plate can evenly transfer heat to the bottom wall of the pot body to heat the pot body, which is beneficial to improving the uniformity of heating the pot body by the heating device 100. The support plate 12 can be connected below the heat-conducting plate 11 (e.g., ...). Figure 2 (As shown below), it is used to support the entire heating device 100 and the pot body, which can improve the stability of the heating device 100 heating the pot body.

[0034] The heat-conducting plate 11 can be a metal plate such as an aluminum plate or a steel plate, or an alloy plate such as a stainless steel plate, which can improve the uniformity of heat transfer. The bearing plate 12 can also be a metal plate such as an aluminum plate or a steel plate, or an alloy plate such as a stainless steel plate, which can ensure the heat dissipation effect of the heating device 100 and improve the structural strength of the bearing plate 12, thereby improving the stability of the heating device 100 in heating the pot. It can be understood that the mounting shell 10 is formed by assembling multiple sheet metal parts together. Compared with the solution of casting the mounting shell 10, it can improve the production efficiency of the mounting shell 10 and reduce the production cost of the mounting shell 10, thereby improving the production efficiency of the heating device 100 and reducing the production cost of the heating device 100.

[0035] An installation cavity can be defined between the support plate 12 and the heat-conducting plate 11. The heating plate 20 can be disposed within the installation cavity, which can improve the heating uniformity of the heating device 100. The support plate 12 and the heat-conducting plate 11 can cooperate with each other to protect the heat-conducting plate 11, thereby improving the service life of the heating device 100. The heating plate 20 can contact the heat-conducting plate 11 to conduct heat to the heat-conducting plate 11. The heat-conducting plate 11 can evenly conduct the heat emitted by the heating plate 20 to the bottom wall of the pot, which can further improve the heating uniformity of the heating device 100. This can improve the heating uniformity of the pot, improve the heating effect of the pot, improve the cooking effect of the electric cooking pot, and improve the user experience.

[0036] The mounting shell 10 may have a mounting hole 101 in the middle, and the mounting cavity may be arranged around the outer periphery of the mounting hole 101. A temperature measuring element 30 may be inserted through the mounting hole 101 to monitor the temperature of the pot. The heating plate 20 may be rectangular, and a through hole may be provided at the position of the heating plate 20 corresponding to the mounting hole 20. The heating plate 20 may include a heating wire 21, which may be coiled around the outer edge of the heating plate 20 and between the through hole.

[0037] Therefore, the uniformity of heating of the entire heating plate 20 by the heating wire 21 can be guaranteed, and the uniformity of the heating area distribution of the heating plate 21 can be guaranteed, thereby improving the uniformity of heating of the pot body, improving the heating effect of the pot body, and improving the cooking effect of the electric cooking pot. At the same time, it can ensure that the entire heating wire 21 is arranged on the heating plate 20, which can reduce the number of heating wires 21 and reduce processing costs.

[0038] According to the embodiment of the present invention, the heating device 100, by setting a heat-conducting plate 11 and a support plate 12, and by assembling the heat-conducting plate 11 and the support plate 12 together to form a mounting shell 10, can improve the production efficiency of the mounting shell 10 and reduce the production cost of the mounting shell 10, thereby improving the production efficiency of the heating device 100 and reducing the production cost of the heating device 100; and by setting a heating plate 20 between the heat-conducting plate 11 and the support plate 12, the heating plate 20 can heat up evenly and conduct the heat evenly to the pot body through the heat-conducting plate 11, thereby improving the uniformity of heating of the heating device 100, thereby improving the uniformity of heating of the pot body, improving the heating effect of the pot body, improving the cooking effect of the electric cooking pot, and improving the user experience.

[0039] In addition, the heating plate 20 is configured with a coiled heating wire. Compared with the heating tube in the existing electric heating plate structure, the insulation material filled in the heating tube to insulate and protect the heating wire in the heating tube is eliminated, which further simplifies the manufacturing process of the heating device 100 and the overall height of the heating device. The heating wire 21 can be coiled around the circumference of the heating plate 20. The heating plate 20 is rectangular, and the surface of the heat-conducting plate 11 that contacts the pot body is rectangular. This allows the heat from the heating wire 21 to be evenly conducted to the pot body through the heat-conducting plate 11, reducing the problem of insufficient heat transfer at the corners of the rectangular pot body.

[0040] like Figure 1 , Figure 4 and Figure 6 As shown, according to some embodiments of the present invention, the projected area of ​​the heating wire 21 on the heating plate 20 can be greater than 0.8 times the surface area of ​​the heating plate 20, which can increase the number of coils of the heating wire 21 on the heating plate 20 and extend the length of the entire heating wire 21, thereby increasing the heating area of ​​the heating plate 21, improving the heating effect on the pot body, and improving the cooking effect of the electric cooking pot.

[0041] Furthermore, if the equivalent diameter of the heating wire 21 is too large, the cost of the heating plate 20 will be too high. If the equivalent diameter of the heating wire 21 is too small, the heating effect of the heating plate 20 will be affected. Therefore, the equivalent diameter of the heating wire 21 can be limited to the range of 0.5mm-1mm. This can ensure the uniformity of the heating area distribution of the heating plate 21 and increase the heating area of ​​the heating plate 21, thereby improving the heating effect on the pot and the cooking effect of the electric cooking pot, while reducing costs.

[0042] like Figure 6 As shown, according to some embodiments of the present invention, the heating plate 20 is a rounded rectangular plate, which can disperse the mechanical stress on the edge of the heating plate 20, reduce the cracking or deformation of the corners of the heating plate 20 caused by long-term thermal expansion and contraction, improve the service life of the heating plate 20, and at the same time facilitate better contact between the heating plate 20 and the heat-conducting plate 11, thereby improving the heat conduction efficiency of the heating plate 20 and the heat-conducting plate 11.

[0043] The heating wire 21 may include multiple first heating segments 211 and multiple second heating segments 212. The multiple first heating segments 211 may be arranged in the length direction of the heating plate 20, and each first heating segment 211 may extend along the width direction of the heating plate 20. The multiple second heating segments 212 may be arranged in the width direction of the heating plate 20, and each second heating segment 212 may extend along the length direction of the heating plate 20. The multiple first heating segments 211 and multiple second heating segments 212 may be connected end to end alternately, so that the heating wire 21 can be coiled from the inside to the outside from the mounting hole 20, which can ensure the uniformity of heating of the entire heating plate 20 by the heating wire 21 and the uniformity of the heating area distribution of the heating plate 21.

[0044] The distance between two adjacent first heating sections 211 can be n1. If the distance between two adjacent first heating sections 211 is too small, the cost of the heating plate 20 will be too high. Therefore, the distance between two adjacent first heating sections 211 can be limited to a range greater than 4mm, i.e., n1>4mm. This can reduce the number of turns of the heating wire 21 on the heating plate 20 and appropriately shorten the length of the entire heating wire 21, thereby reducing the processing cost. At the same time, it can ensure the heating area of ​​the heating plate 21 and ensure the heating effect on the pot.

[0045] The distance between two adjacent second heating sections 212 can be n1. If the distance between two adjacent second heating sections 212 is too small, the cost of the heating plate 20 will be too high. Therefore, the distance between two adjacent second heating sections 212 can be limited to a range greater than 3mm, i.e., n2>3mm. This can reduce the number of turns of the heating wire 21 on the heating plate 20 and appropriately shorten the length of the entire heating wire 21, thereby reducing the processing cost. At the same time, it can ensure the heating area of ​​the heating plate 21 and ensure the heating effect on the pot.

[0046] According to some other embodiments of the present invention, the projected shape of the heat-conducting plate 11 on the plane where the heating plate 20 is located can be the same as the shape of the heating plate 20, that is, one side of the heating plate 20 (e.g., Figure 4 The upper surface shown can be aligned with one side of the heat-conducting plate 11 (e.g., the upper side). Figure 4 Contacting at least a portion of the lower surface (as shown) can increase the contact area between the heating plate 20 and the heat-conducting plate 11, allowing the heat-conducting plate 11 to fully conduct the heat from the heating plate 20 to the pot body, thereby improving the heating efficiency of the pot body and enhancing the cooking effect of the electric cooking pot.

[0047] The projection shape of the support plate 12 onto the plane of the heating plate 20 can be the same as the shape of the heating plate 20, i.e., the other side of the heating plate 20 (e.g., Figure 4 The lower surface shown can be aligned with one side of the support plate 12 (e.g., the lower side). Figure 4 Contacting at least a portion of the upper surface (as shown) can increase the contact area between the heating plate 20 and the support plate 12, thereby improving the heat dissipation effect of the heating plate 20 and extending the service life of the heating device 100. At the same time, since the heating plate 20 is installed inside the mounting cavity, the support plate 12 and the heat-conducting plate 11 can be connected outside the mounting cavity. That is, the support plate 12 and the heat-conducting plate 11 can cooperate with each other to protect the heating plate 20, thereby extending the service life of the heating device 100.

[0048] According to some embodiments of this utility model, the heat-conducting plate 11 and the support plate 12 can be connected together by a snap-fit ​​method. For example, the heat-conducting plate 11 can have a buckle, and the support plate 12 can have a slot. The buckle and the slot can be snapped together to connect the heat-conducting plate 11 and the support plate 12. Alternatively, the heat-conducting plate 11 can have a slot, and the support plate 12 can have a buckle. The buckle and the slot can be snapped together for easy disassembly and maintenance. Of course, the heat-conducting plate 11 and the support plate 12 can be connected together by riveting, that is, the heat-conducting plate 11 and the support plate 12 can be fastened together by rivets, which can improve the connection effect between the heat-conducting plate 11 and the support plate 12 and improve the structural strength of the heating device 100. In addition, the heat-conducting plate 11 and the support plate 12 can also be fastened together by screws or bolts and other fasteners, which can ensure the connection effect between the heat-conducting plate 11 and the support plate 12 and facilitate disassembly and assembly.

[0049] like Figure 2 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the heat-conducting plate 11 may have a first flange 111, and the edge of the supporting plate 12 may cooperate with the first flange 111 to connect the supporting plate 12 and the heat-conducting plate 11. This can increase the connection area between the supporting plate 12 and the heat-conducting plate 11, improve the connection effect between the supporting plate 12 and the heat-conducting plate 11, and facilitate operation. Alternatively, the supporting plate 12 may have a first flange 111, and the edge of the heat-conducting plate 11 may cooperate with the first flange 111 to connect the heat-conducting plate 11 and the supporting plate 12. This can increase the connection area between the supporting plate 12 and the heat-conducting plate 11, improve the connection effect between the supporting plate 12 and the heat-conducting plate 11, and facilitate operation.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the heat-conducting plate 11 may have a first flange 111, and the support plate 12 may have a second flange 121. The second flange 121 and the first flange 111 may cooperate with each other to connect the support plate 12 and the heat-conducting plate 11, thereby increasing the connection area between the support plate 12 and the heat-conducting plate 11, improving the connection effect between the support plate 12 and the heat-conducting plate 11, and facilitating operation. Alternatively, the heat-conducting plate 11 may have a second flange 121, and the support plate 12 may have a first flange 111. The first flange 111 and the second flange 121 may cooperate with each other to connect the support plate 12 and the heat-conducting plate 11, thereby increasing the connection area between the support plate 12 and the heat-conducting plate 11, improving the connection effect between the support plate 12 and the heat-conducting plate 11, and facilitating operation.

[0051] like Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the first flange 111 can define a slot, and the second flange 121 can be inserted into the slot. Alternatively, the second flange 121 can define a slot, and the first flange 111 can be inserted into the slot. This facilitates a tight fit between the first flange 111 and the second flange 121, reduces the gap between the first flange 111 and the second flange 121, and increases the contact area between the first flange 111 and the second flange 121.

[0052] On the one hand, it can increase the connection area between the support plate 12 and the heat-conducting plate 11, improve the connection effect between the support plate 12 and the heat-conducting plate 11, prevent the support plate 12 and the heat-conducting plate 11 from loosening or falling off after the heating device 100 has been used more than once, and improve the structural strength and service life of the heating device 100. On the other hand, it can form a labyrinth structure at the connection between the support plate 12 and the heat-conducting plate 11, which can extend the path for external substances (such as water, dust or gas) to enter the installation cavity, achieve a sealed connection between the support plate 12 and the heat-conducting plate 11, improve the sealing effect of the installation cavity, prevent external substances from entering the installation cavity to corrode and damage the heating plate 20, ensure the heating effect of the heating device 100, improve the service life of the heating device 100, and facilitate maintenance.

[0053] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the heat-conducting plate 11 may include a heat plate body 112 and a first flange 111. The first flange 111 may be connected to the edge of the heat plate body 112, which can avoid the heating plate 20, prevent interference between the heating plate 20 and the connection between the first flange 111 and the second flange 121, ensure the connection effect between the heat-conducting plate 11 and the support plate 12, and facilitate disassembly and assembly. At the same time, it can ensure that one side of the heating plate 20 (e.g., Figure 4 The upper surface shown can be aligned with one side of the hot plate body 112 (e.g., the upper side). Figure 4 The lower surface (as shown) is in contact with at least a portion of the surface, so that the heating plate body 112 can fully conduct the heat of the heating plate 20 to the pot body, which can improve the heating efficiency of the pot body and improve the cooking effect of the electric cooking pot.

[0054] The first flange 111 may include a first vertical extension 1111, a second vertical extension 1112, and a transition extension 1113, the upper end of the first vertical extension 1111 (e.g., Figure 2The upper end shown can be connected to the edge (such as the inner edge and outer edge) of the hot plate body 112. The second vertical extension 1112 can be spaced apart on the side of the first vertical extension 1111 near the mounting cavity. That is, if the first vertical extension 1111 is connected to the inner edge of the hot plate body 112, the second vertical extension 1112 can be spaced apart on the outer side of the first vertical extension 1111 (such as the inner edge and outer edge). Figure 2 As shown on the outer side), if the first vertical extension 1111 is connected to the outer edge of the hot plate body 112, then the second vertical extension 1112 can be arranged at intervals on the inner side of the first vertical extension 1111 (e.g., the outer side). Figure 3 (Inner side shown).

[0055] The transition extension 1113 can be connected to the lower end of the first vertical extension 1111 (e.g., Figure 2 The lower end shown) and the lower end of the second vertical extension 1112 (as shown) Figure 2 Between the lower end shown, the first vertical extension 1111, the second vertical extension 1112, and the transition extension 1113 can form a slot, and the slot can open towards the heat plate body 112, that is, the edge of the heat-conducting plate 11 can face downwards (as shown). Figure 2 (As shown in the top-to-bottom direction) bends to form the first flange 111, and the first flange 111 can be bent multiple times to form an upward (as shown in the top-to-bottom direction) Figure 2 The slot is open (shown from bottom to top), and the second flange 121 can be located at the edge (such as the inner edge and the outer edge) of the support plate 12, and the second flange 121 can face downwards (such as...). Figure 2 (as shown in the top-to-bottom direction) extends, and the second flange 121 can be inserted into the slot.

[0056] This increases the contact area between the first flange 111 and the second flange 121. On the one hand, it increases the connection area between the support plate 12 and the heat-conducting plate 11, improving the connection effect between them and preventing them from loosening or falling off after multiple uses of the heating device 100. This also improves the structural strength and service life of the heating device 100. On the other hand, it creates a labyrinth structure at the connection between the support plate 12 and the heat-conducting plate 11, extending the path for external substances (such as water, dust, or gas) to enter the mounting cavity. This achieves a sealed connection between the support plate 12 and the heat-conducting plate 11, improving the sealing effect of the mounting cavity and preventing external substances from entering the cavity to corrode and damage the heating plate 20. This ensures the heating effect of the heating device 100, improves its service life, and facilitates maintenance.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4and Figure 5 As shown, according to some embodiments of the present invention, the heat-conducting plate 11 can be a stamped part, that is, the heat-conducting plate 11 can be integrally stamped to stamp out the heat plate body 112, the first flange 111 with multiple bends and the slot, which can improve the structural strength of the heat-conducting plate 11 and facilitate processing. The bearing plate 12 can be a stamped part, that is, the bearing plate 12 can be integrally stamped to stamp out the second flange 121, which can improve the structural strength of the bearing plate 12 and facilitate processing. Thus, the structural strength of the heating device 100 can be improved, the protection capability of the heating plate 20 can be improved, the service life of the heating device 100 can be improved, and maintenance can be facilitated. At the same time, the production efficiency of the heating device 100 can be improved, and the production cost of the heating device 100 can be reduced.

[0058] It is understandable that during the assembly of the heating device 100, multiple plates of the heating device 100 (such as heat-conducting plate 11, heating plate 20, or support plate 12, etc.) can be stacked together in sequence. Then, the edges (such as inner and outer edges) of the support plate 12 are stamped and bent by stamping and forming processes to form a second flange 121. Then, the edges (such as inner and outer edges) of the heat-conducting plate 11 are stamped and bent by stamping and forming processes to form a slot and a first flange 111 with multiple bends. This facilitates the insertion and engagement of the second flange 121 with the slot, and allows the first flange 111 to wrap around the second flange 121, which is also convenient for processing.

[0059] Therefore, based on ensuring that the heat-conducting plate 11 can transfer heat to the heating plate 20 normally, and based on that the support plate 12 can dissipate heat from the heating plate 20 normally, the connection effect between the support plate 12 and the heat-conducting plate 11 can be improved. This can prevent the support plate 12 and the heat-conducting plate 11 from loosening or falling off after the heating device 100 has been used multiple times. This can improve the structural strength and service life of the heating device 100. At the same time, it can achieve a sealed connection between the support plate 12 and the heat-conducting plate 11, which can improve the sealing effect of the mounting cavity. This can prevent external substances from entering the mounting cavity to corrode and damage the heating plate 20. This can improve the service life of the heating device 100 and facilitate maintenance.

[0060] According to some embodiments of the present invention, the support plate 12 may have a structural reinforcement portion, which may include a reinforcing recess, and the reinforcing recess may be oriented away from the heat-conducting plate 11 (e.g., ...). Figure 4 The structure may be recessed (as shown in the top-to-bottom direction), or the structural reinforcement may include a reinforcing protrusion, which may be oriented towards the heat-conducting plate 11 (e.g., ...). Figure 4(As shown in the bottom-to-top direction) protrusions, or the structural reinforcement may include reinforcing recesses and reinforcing protrusions, thereby improving the structural strength of the bearing plate 12, guiding the load to be transmitted along a specific path, preventing excessive stress concentration, and improving the overall load-bearing capacity of the bearing plate 12.

[0061] like Figure 1 , Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the supporting plate 12 may have a structural reinforcement 122. The structural reinforcement 122 may include a plurality of first ribs 1221 and a plurality of second ribs 1222. The plurality of first ribs 1221 may be arranged circumferentially at intervals in the central region of the supporting plate 12, and each first rib 1221 may be oriented in a direction away from the central region (e.g., ...). Figure 1 Extending in the inward and outward directions as shown, the second rib 1222 can be located between any two adjacent first ribs 1221, and any two adjacent first ribs 1221 can be connected by at least one second rib 1222, thereby improving the structural strength of the bearing plate 12, guiding the load to be transmitted along a specific path, preventing excessive stress concentration, and improving the load-bearing capacity of the entire bearing plate 12.

[0062] like Figure 1 , Figure 2 and Figure 4 As shown, according to some embodiments of the present invention, the mounting shell 10 may have a mounting hole 101 in the middle, and the mounting cavity may be arranged around the outer periphery of the mounting hole 101, so that multiple plates of the heating device 100 (such as heat-conducting plate 11, heating plate 20, or support plate 12, etc.) may have inner edges and outer edges respectively. The first flange 111 may be respectively arranged at the inner edge and outer edge of the heat-conducting plate 11, and the first flange 111 located at the inner edge of the heat-conducting plate 11 may surround the mounting hole 101. The second flange 121 may be respectively arranged at the inner edge and outer edge of the support plate 12, and the first flange 111 and the second flange 121 cooperate to improve the connection effect between the heat-conducting plate 11 and the support plate 12, improve the structural strength of the mounting shell 10 and the entire heating device 100, and improve the sealing effect of the mounting cavity, preventing external substances from entering the mounting cavity to corrode and damage the heating plate 20.

[0063] The heating device 100 may further include a temperature measuring element 30, which may pass through the mounting hole 101 and may be positioned relative to the mounting housing 10 in the vertical direction (e.g., Figure 1The temperature sensor 30 moves in the up-down direction (as shown), allowing it to contact the pot body to monitor its temperature. This enables the temperature sensor 30 to monitor the temperature at the center of the bottom wall of the pot, improving the accuracy of temperature monitoring. The heating device 100 may also include a spring 40, which can be positioned below the temperature sensor 30 (e.g., in the up-down direction). Figure 1 (as shown below), the two ends of spring 40 (as shown below) Figure 1 The upper and lower ends shown can contact the temperature measuring element 30 and the bottom wall of the cooking body respectively. The spring 40 is compressed in the initial state, so that the spring 40 can drive the temperature measuring element 30 to move upward. This can ensure that the temperature measuring element 30 is in close contact with the bottom wall of the pot, which can improve the monitoring effect of the pot temperature.

[0064] The temperature measuring element 30 may have a limiting plate 31, which may be disposed on the outer periphery of the temperature measuring element 30. The limiting plate 31 may extend circumferentially along the temperature measuring element 30 to form a ring, and the ring-shaped limiting plate 31 may be located on the lower side of the first flange 111 at the inner edge of the heat-conducting plate 11 (e.g., Figure 2 (As shown on the lower side), the spring 40 can drive the temperature measuring element 30 to move upward until the limiting plate 31 abuts against the transition extension 1113 of the first flange 111, which can limit the temperature measuring element 30 and improve the reliability of monitoring the temperature of the pot body.

[0065] At this time, a portion of the temperature measuring element 30 can pass through the mounting hole 101, allowing the pot body to first contact the temperature measuring element 30 and press down on the temperature measuring element 30 to drive the spring 40 to compress and store energy until the pot body is supported on the heat-conducting plate 11 of the heating device 100. This ensures the heating effect on the pot body and the monitoring effect on the pot body temperature. When the user removes the pot body, the spring 40 releases energy to drive the temperature measuring element 30 to move upward until the limiting plate 31 abuts against the heating device 100 again, facilitating operation.

[0066] like Figure 1 and Figure 5 As shown, in some embodiments, the side of the support plate 12 facing away from the heat-conducting plate 11 (e.g.) Figure 5 The lower side (as shown) can be provided with multiple guide posts 123, which can be spaced apart on the outer periphery of the mounting hole 101. The temperature measuring element 30 can be guided by the multiple guide posts 123 relative to the mounting shell 10 in the vertical direction (e.g., Figure 1 The temperature measuring element 30 can move in the up and down direction (as shown). That is, the outer periphery of the limiting plate 31 of the temperature measuring element 30 can have multiple guide grooves. The guide grooves can slide with the guide post 123, so that the movement of the temperature measuring element 30 can be smoother, which can improve the reliability of the movement of the temperature measuring element 30. At the same time, it can prevent the temperature measuring element 30 from shaking or tilting during movement, which can improve the stability of the movement of the temperature measuring element 30 and improve the stability of the monitoring of the pot body temperature.

[0067] like Figure 1 As shown, in some embodiments, the distance between the outer peripheral wall of the temperature measuring element 30 and the hole wall of the mounting hole 101 can be L1. If L1 is too small, the temperature measuring element 30 is easily interfered with by the heating device 100, which affects the accuracy of the temperature measuring element 30 in monitoring the temperature of the pot. Therefore, L1 can be limited to 5mm or more to prevent the temperature measuring element 30 from being interfered with by the heating device 100, thereby improving the accuracy of the temperature monitoring of the pot and the monitoring effect of the pot temperature.

[0068] In some embodiments, the heat-conducting plate 11 is located on the side opposite to the support plate 12 (e.g., Figure 1 At least a portion of the upper surface shown can be along a direction away from the mounting hole 101 (e.g. Figure 1 The direction shown (from inside to outside) gradually downwards (as shown) Figure 1 The heating plate 20 extends from top to bottom as shown, and the shape of the heating plate 11 can match that of the heating device 100. That is, the middle part of the entire heating device 100 is higher than its outer periphery, or the entire heating device 100 can be an arc shape with the middle part convex upward. This can prevent the heating device 100 from deforming due to thermal expansion during the heating of the pot body, and can improve the stability and reliability of the heating device 100.

[0069] like Figure 1 and Figure 5 As shown, according to some embodiments of the present invention, the bearing plate 12 can withstand the pressure of the electric cooking pot body and transmit the pressure to the pressure control unit of the electric cooking pot, which is beneficial to realize the pressure detection and control of the electric cooking pot body.

[0070] The electric cooking pot also includes elastic components and pressure detection devices, and the side of the support plate 12 facing away from the heat-conducting plate 11 (such as...) Figure 5 The lower side shown can be provided with a heating plate column 124 and a pressure sensing column 125. The heating plate column 124 can cooperate with the elastic component to drive the elastic component to undergo elastic deformation when the electric cooking pot is pressurized, and the pressure sensing column 125 can cooperate with the pressure detection component to detect the pressure inside the pot by sensing the amount of deformation of the elastic component.

[0071] For example, the electric cooking pot may have an elastic diaphragm, and the heating plate column 124 may be assembled with the elastic diaphragm. When the electric cooking pot is pressurized, the heating plate column 124 may compress the elastic diaphragm to deform and move downward. The pressure sensing column 125 may sense the amount of deformation of the elastic diaphragm through the pressure detection element, and obtain the displacement change of the entire heating device 100 through the amount of deformation of the elastic diaphragm. Then, the pressure change of the electric cooking pot body may be obtained through the displacement change of the entire heating device 100, thereby realizing the pressure detection and control of the electric cooking pot body.

[0072] In some embodiments, the distance between the heating plate column 124 and the pressure sensing column 125 can be L2 (not shown in the figure). If L2 is too large, the pressure sensing column 125 will have difficulty accurately sensing the deformation of the elastic component diaphragm caused by the pressure of the heating plate column 124, which will affect the pressure detection effect on the electric cooking pot body. Therefore, L2 can be limited to 10mm or less to ensure that the pressure sensing column 125 can accurately sense the deformation of the elastic component diaphragm caused by the pressure of the heating plate column 124, thereby improving the pressure detection effect on the electric cooking pot body.

[0073] like Figure 2 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, a first insulating part 50 can be provided between the heating plate 20 and the heat-conducting plate 11, and a second insulating part 60 can be provided between the heating plate 20 and the supporting plate 12. This can achieve insulation of the heating plate 20, prevent the heating plate 20 from leaking due to water seeping into the heating device 100, and reduce the safety hazards of using the electric cooking pot.

[0074] The first insulating part 50 and the second insulating part 60 can each be an insulating layer. The insulating layer can be mica, or it can be a ceramic-based insulating coating such as alumina, aluminum nitride, or magnesium oxide. This improves the thermal conductivity of the insulating layer, thereby ensuring the heat exchange effect between the heat-conducting plate 11 and the heating plate 20, ensuring the heating effect of the heating device 100 on the pot body, and simultaneously ensuring the heat exchange effect between the supporting plate 12 and the heating plate 20, ensuring the heat dissipation effect on the heating plate 20, and improving the service life of the heating device 100. It is understood that the insulating layer can be a plate-like structure, for example, a mica sheet. During the assembly of the heating device 100, the two insulating layers are placed on opposite sides of the heating plate 20 (e.g., ...). Figure 4 (As shown on the top and bottom sides) or, the insulating layer can be formed by spraying on the surface of the heating plate 20 for easy operation.

[0075] According to some embodiments of this utility model, the heating plate 20 may contain heating wires such as electric heating wires (nickel-chromium alloy), carbon fiber heating wires, or electromagnetic heating coils, and the gaps between multiple heating wires may be filled with insulating thermally conductive adhesive, which can improve the uniformity of heating of the heating plate 20 and improve the heating effect of the heating device 100 on the pot body. At the same time, the heating wires can be connected to an external power source so that the entire heating plate 20 can evenly radiate heat outwards, which is convenient for operation.

[0076] The following reference Figures 1-5 To describe a specific embodiment of this application, an electric cooking pot may include a cooking body and a heating device. The cooking body may include a pot body, and the heating device 100 may be disposed below the pot body. The pot body may be placed on the heating device 100. The cooking body has an elastic diaphragm. The heating device 100 may have a mounting hole 101 in the middle. The heating device 100 may include a heating plate 20, a heat-conducting plate 11, a support plate 12, and a temperature measuring element 30.

[0077] The temperature measuring element 30 can be installed in the mounting hole 101 and can contact the middle of the bottom wall of the pot body to monitor the temperature of the pot body. The heat conducting plate 11, the heating plate 20 and the support plate 12 can be stacked together in sequence, and the edges of the heat conducting plate 11 and the support plate 12 are sealed to form a sealed mounting cavity on the outer periphery of the mounting hole 101. The heating plate 20 can be located in the mounting cavity. The heating plate 20 can contact the heat conducting plate 11 through the first insulating part 50 and can contact the support plate 12 through the second insulating part 60, which can achieve insulation of the heating plate 20.

[0078] The support plate 12 is located on the side of the heating plate 20 away from the heat-conducting plate 11 (e.g.) Figure 1 The lower side (as shown) is in contact with the bottom of the cooking body to withstand the pressure of the electric cooking pot body. The side of the support plate 12 away from the heat-conducting plate 11 (as shown) Figure 1 The lower side (as shown) may have spaced-apart heating plate columns 124 and pressure sensing columns 125. The heating plate columns 124 may be assembled with an elastic diaphragm. The heating plate columns 124 may compress the elastic diaphragm when the electric cooking pot pressurizes, causing the elastic diaphragm to deform and move downwards (as shown). Figure 1 As shown in the top-to-bottom direction, the pressure sensing column 125 can sense the deformation of the elastic component diaphragm through the pressure detection element, and obtain the displacement change of the entire heating device 100 through the deformation of the elastic component diaphragm, and then obtain the pressure change of the electric cooking pot body through the displacement change of the entire heating device 100, thus realizing the pressure detection and control of the electric cooking pot body.

[0079] Users can place the pot containing the ingredients on the heating device 100 and turn off the pot. Then, users can operate the control panel to select the working state of the electric cooking pot according to the type of ingredients. The heating plate 20 can be powered on after the user selects the working state of the electric cooking pot so that the heating device 100 heats the pot until the ingredients are cooked. After the ingredients are cooked, the heating plate 20 can continue to heat so that the heating device 100 can continue to heat the pot, which can keep the ingredients warm.

[0080] The heating plate 20 can generate heat evenly after being powered on, and the heat-conducting plate 11 can evenly conduct heat to the pot body. At the same time, the temperature measuring element 30 can be closely attached to the middle of the bottom wall of the pot body to monitor the pot body temperature. The pressure sensing column 125 and the heating plate column 124 can cooperate to detect the pot body pressure after the electric cooking pot is pressurized, so that the electric cooking pot can adjust the heat output of the heating plate 20 according to the pot body temperature and pot body pressure until the food is cooked. It can also control the heating plate 20 to continue to selectively generate heat after the food is cooked. For example, the electric cooking pot can adjust the heat output of the heating plate 20 after the food is cooked according to the pot body temperature and pot body pressure, so that the heating device 100 can continue to heat the pot body to maintain the pot body at a constant temperature.

[0081] Other configurations and operations of the heating device 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here. In the description of the present invention, "first feature" and "second feature" may include one or more of the features. The up-down direction, left-right direction, and front-back direction are defined as shown in the figures.

[0082] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them. Moreover, "above," "over," and "on top" of the second feature include the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric cooking pot, characterized in that, include: A cooking body, the cooking body including a pot body, the pot body being a rectangular pot body; A heating device, wherein the heating device is disposed below the pot body and includes: The mounting shell includes a separately formed heat-conducting plate and a support plate. The heat-conducting plate is used to contact the pot body, and the contact surface between the heat-conducting plate and the pot body is rectangular. The support plate is connected below the heat-conducting plate and defines a mounting cavity between the heat-conducting plate and the heat-conducting plate. A heating plate is disposed within the mounting cavity and in contact with the heat-conducting plate to conduct heat to the heat-conducting plate; The mounting shell may have a mounting hole in the middle, and the mounting cavity is arranged around the outer periphery of the mounting hole. A temperature measuring element is inserted through the mounting hole to monitor the temperature of the pot body. The heating plate is rectangular and has a through hole corresponding to the position of the mounting hole. The heating plate includes a heating wire, which is coiled around the outer edge of the heating plate and between the through hole.

2. The electric cooking pot according to claim 1, characterized in that, The projected area of ​​the heating wire on the heating plate is greater than 0.8 times the surface area of ​​the heating plate; and / or, The equivalent diameter of the heating wire is 0.5mm-1mm; and / or, The heating plate is a rounded rectangular plate, and the heating wire includes: a plurality of first heating segments and a plurality of second heating segments. The plurality of first heating segments are arranged in the length direction of the heating plate and each first heating segment extends along the width direction of the heating plate. The plurality of second heating segments are arranged in the width direction of the heating plate and each second heating segment extends along the length direction of the heating plate. The plurality of first heating segments and the plurality of second heating segments are connected end to end alternately. The distance between two adjacent first heating segments is greater than 4 mm, and the distance between two adjacent second heating segments is greater than 3 mm.

3. The electric cooking pot according to claim 1, characterized in that, One of the heat-conducting plate and the support plate has a first flange at its edge, and the edge of the other of the heat-conducting plate and the support plate mates with the first flange.

4. The electric cooking pot according to claim 3, characterized in that, The edge of the other of the heat-conducting plate and the carrier plate has a second flange, which cooperates with the first flange.

5. The electric cooking pot according to claim 4, characterized in that, One of the first flange and the second flange defines a slot, and the other of the first flange and the second flange engages with the slot. And / or, the heat-conducting plate includes a heat plate body and a first flange, the first flange being connected to the edge of the heat plate body and including a first vertical extension, a second vertical extension and a transition extension, the upper end of the first vertical extension being connected to the heat plate body, the second vertical extension being spaced apart on one side of the first vertical extension, the transition extension being connected between the lower end of the first vertical extension and the lower end of the second vertical extension, and the three together forming a slot open to the heat plate body, the second flange extending downward and engaging with the slot.

6. The electric cooking pot according to claim 1, characterized in that, The heat-conducting plate is a stamped part; and / or, the support plate is a stamped part; and / or, the heat-conducting plate and the support plate are connected together by snap-fit ​​or riveting.

7. The electric cooking pot according to claim 1, characterized in that, The supporting plate has a structural reinforcement section; The structural reinforcement includes a reinforcing recess and / or a reinforcing protrusion; or... The structural reinforcement includes a plurality of first ribs and a plurality of second ribs. The plurality of first ribs are arranged circumferentially at intervals in the central region of the bearing plate. Each first rib extends in a direction away from the central region. Any two adjacent first ribs are connected by at least one second rib.

8. The electric cooking pot according to claim 1, characterized in that, The support plate is provided with a plurality of guide posts on the side away from the heat-conducting plate. The plurality of guide posts are arranged at intervals around the outer periphery of the mounting hole. The temperature measuring element moves up and down relative to the mounting shell under the guidance of the plurality of guide posts. And / or, the distance between the outer peripheral wall of the temperature measuring element and the wall of the mounting hole is L1, where L1>5mm; And / or, at least a portion of the surface of the heat-conducting plate facing away from the support plate extends gradually downward in a direction away from the mounting hole, and the shape of the heating plate matches that of the heat-conducting plate.

9. The electric cooking pot according to claim 1, characterized in that, The electric cooking pot also includes an elastic component and a pressure detection component. A heating plate column and a pressure sensing column are provided on the side of the support plate away from the heat-conducting plate. The heating plate column is used to cooperate with the elastic component to drive the elastic component to undergo elastic deformation when the electric cooking pot is pressurized. The pressure sensing column is used to cooperate with the pressure detection component to detect the pressure inside the pot by sensing the deformation of the elastic component. The distance between the hot plate column and the pressure sensing column is L2, where L2 < 10 mm.

10. The electric cooking pot according to any one of claims 1-9, characterized in that, A first insulating part is provided between the heating plate and the heat-conducting plate, and a second insulating part is provided between the heating plate and the supporting plate.

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