Cooking utensil with combined sensor

Abstract

The utility model discloses a cooking utensil with a combined sensor, which is characterized by comprising a container and a concave device which is movably connected with the container and is used for containing and heating food, the cooking utensil body comprises a shell, a power line, an electric hot tray, a control panel, a combined sensor and a wire. The electric heating disc is an electric heating combined device with a containing hole in the middle and comprises a metal heat conduction plate abutting against the container, a fixing plate, an electric heating wire type heating layer which is arranged between the heat conduction plate and the fixing plate and is good in insulation performance, and installation columns used for connecting devices. And the combined sensor is a combined device arranged at the accommodating hole and comprises a mounting piece, a container sensor for detecting the temperature of the container and a hot tray sensor for detecting the temperature of the electric hot tray.

Description

Technical Field

[0001] This invention relates to the field of electric heating cooking technology, and in particular to an electric heating cooking appliance in which a container sensor and a heating plate sensor are combined into one unit and disposed at the receiving hole in the middle of a combined electric heating plate. Background Technology

[0002] Traditional electric cooking appliances typically use heating plates made by riveting, welding, and casting heating elements with metal clips. To enable automatic cooking control, most heating plates have sensor housings in the center. However, these sensors only detect the container temperature and prevent the heating plate from burning dry; they lack the ability to detect and control the heating plate's temperature. Therefore, in traditional solutions, when cooking requires precise temperature control of the heating plate, additional components are often added. For example, the keep-warm function of a magnetic steel temperature-controlled rice cooker either uses a snap-action thermostat or a high-power diode to control the heating plate's keep-warm temperature, or relies entirely on an additional low-power insulation plate to provide the necessary warmth. Summary of the Invention

[0003] The present invention aims to combine a container sensor and a heating plate sensor and place them in the receiving hole in the middle of the heating plate of the electric heating combination device. While optimizing the product structure and assembly, it utilizes the real-time temperature of the container and the heating plate to adjust the working state of the heating plate in a timely manner according to different cooking conditions, thereby solving at least one problem existing in traditional cooking appliances.

[0004] The technical solution of the present invention is a cooking appliance equipped with a combination sensor, characterized in that it includes:

[0005] A container, which is a concave device movably connected to a container body for holding and heating food;

[0006] The appliance body is the main body of the cooking appliance, including: outer shell, power cord, heating plate, control board, combined sensor, and wires;

[0007] The electric heating plate is an electric heating assembly with a receiving hole in the middle, including: a metal heat-conducting plate that abuts against the container, a fixing plate, and an electric heating wire-type heating layer with good insulation performance disposed between the heat-conducting plate and the fixing plate, and a mounting post for connecting the components.

[0008] A combined sensor, which is a combined device disposed at the receiving hole, includes: a mounting component, a container sensor for detecting the temperature of the container, and a heating plate sensor for detecting the temperature of the heating plate.

[0009] A container sensor, wherein the container sensor is a combined device in which the temperature-sensing part protrudes from the receiving hole and elastically abuts against the bottom of the outer side of the container, including: a temperature-sensitive device whose physical properties change with temperature, an elastic element, and a protective element;

[0010] A heating plate sensor, wherein the heating plate sensor is a thermoelectric electrode whose working end is disposed between the heat-conducting plate and the heat-conducting plate accessory, and which collects the temperature data of the electric heating plate using the Seebeck effect.

[0011] Furthermore, the heating plate is a combined electric heating device in the form of a flat plate or a concave-convex shape, in which the heating layer is sandwiched between the heat-conducting plate and the fixing plate after the heat-conducting plate and the fixing plate are riveted together at the outer edge and the middle. The receiving hole in the middle of the heating plate is a straight hole or a conical hole, or a straight hole or a conical hole with a countersunk end. The mounting post is an independent device set on the heating plate, or a protrusion or flange integrated with the fixing plate.

[0012] Furthermore, the combined sensor is installed at the receiving hole by means of a mounting post, or by means of a buckle integrated with the mounting component, or by means of a retaining ring separate from the mounting component, and is installed at the receiving hole after being snapped into the heating plate. It includes: a mounting component consisting of one or more components, and a container sensor, a heating plate sensor, a displacement sensor, and a thermal fuse integrated with the mounting component.

[0013] Furthermore, the temperature-sensitive device is a thermistor, a thermistor transistor, a thermistor IC, or an S, R, B, N, E, T, J, or K type thermoelectric electrode.

[0014] Furthermore, the heat plate sensor is a working end or a transition piece with a working end, which is fixedly or elastically abutted against the surface or bottom surface of the heat-conducting plate, or the side wall of the receiving hole, or the bottom surface of the fixing plate, or the bottom surface of the heat-conducting plate accessory. Protective parts are provided on both poles from the working end to the free end, and the free end is provided with S, R, B, N, E, T, J, K type thermoelectrodes with electrical interfaces.

[0015] The beneficial effects of this invention are that by combining the temperature detection of the container and the heating plate, or other detection items, and using them in conjunction with the heating plate of the aforementioned heating combination device, the operating parameters of the heating plate can be adjusted in a timely manner according to different cooking states and the real-time temperature parameters of the container and the heating plate. This solves the problems existing in traditional cooking appliances, improves the cooking performance of the appliances, expands the application scenarios of the technical solution, and further enhances the safety of appliance use by adding protection functions such as anti-dry burning and overheat protection. Other effects will be set forth in part in the description which follows, and in part will become apparent from the following description, or may be learned from practice of the invention. Attached Figure Description

[0016] Figure 1This is a schematic cross-sectional view of a cooking appliance equipped with a combination sensor according to an embodiment;

[0017] Figure 2 This is a schematic cross-sectional view of the embodiment where the hot plate sensor abuts against the heat-conducting plate accessory and the heat-conducting plate;

[0018] Figure 3 This is a cross-sectional schematic view of the hot plate sensor abutting against the side wall of the receiving hole in the embodiment;

[0019] Figure 4 This is a cross-sectional schematic view of the contact between the heat plate sensor and the heat conduction plate accessory in the embodiment;

[0020] Figure 5 This is an exploded isometric view of the flat heating plate of the embodiment;

[0021] Figure 6 This is an exploded isometric view of the combined sensor in the embodiment.

[0022] Figure 7 This is a schematic cross-sectional view of the concave heating plate of the embodiment;

[0023] Figure 8 This is a cross-sectional schematic view of the convex heating plate of the embodiment.

[0024] Reference numerals: 1. Container; 2. Container body; 21. Heating plate; 211. Heat-conducting plate; 212. Heating layer; 213. Fixing plate; 21A. Accommodation hole; 21B. Mounting post; 22. Combined sensor; 221. Mounting component; 222. Container sensor; 223. Heating plate sensor; 22A. Heat-conducting plate accessory. Detailed implementation method:

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings. The described embodiments are exemplary, wherein similar reference numerals denote the same or similar devices, or devices having the same or similar functions. The terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are merely for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0026] This invention involves the following conceptual descriptions: Container: refers to pots, kettles, jars, etc., used in traditional cooking utensils; Abutting: "Abutting" means to squeeze, push, push, or press, and "connecting" means to link. "Abutting" refers to a connection method where two or more devices are squeezed, pushed, pushed, or pressed together by forces generated in different ways to form a fixed or movable connection; Clamping: refers to fixing or controlling an object in a certain position using a clamp; Electrical interface: refers to elastic, screw, or plug-in terminals used for connecting, transmitting, and exchanging electrical signals, facilitating assembly and disassembly; Control board: refers to a general term for electrical devices in traditional cooking utensils, including PCB boards, electronic components, ICs, relays, wires, etc., that have human-computer interaction and intelligent control functions, consisting of one or more circuit boards. Since the specific structure of this device and the connection method of the combined sensors are not closely related to the scope of protection of this invention, they are not shown in the accompanying drawings. Terms such as "power cord," "wire," "casing," "straight hole," and "conical hole" should be interpreted broadly based on known technology and the description herein, unless otherwise explicitly specified and limited. Therefore, those skilled in the art can understand the meaning of the above-mentioned terms and terms in this invention according to the specific circumstances.

[0027] The following is for reference. Figures 1 to 8 The present invention describes a cooking appliance equipped with a combination sensor.

[0028] The technical solution of the present invention is a cooking appliance equipped with a combined sensor, characterized in that it comprises:

[0029] A container, a concave device movably connected to a body, is used to hold and heat food; the body includes: a shell, a power cord, a heating plate, a control board, a combination sensor, and wires—the main body of the cooking appliance.

[0030] The heating plate is an electric heating assembly with a receiving hole in the middle, comprising: a metal heat-conducting plate that abuts against the container, a fixing plate, a heating layer with excellent insulation properties of a heating wire disposed between the heat-conducting plate and the fixing plate, and a mounting post for connecting the components; further, the heating plate is a combined electric heating device in the form of a flat plate or a concave-convex shape, in which the heating layer is sandwiched between the heat-conducting plate and the fixing plate after being riveted together at the outer edge and the middle, and the receiving hole in the middle of the heating plate is a straight hole or a conical hole, or a straight hole or a conical hole with a countersunk end; the mounting post is an independent component disposed on the heating plate, or a protrusion or flange integral with the fixing plate; in order to allow the heat generated by the heating layer to be quickly transferred to the container, the heat-conducting plate is a heat-conducting plate. Made of high-performance metals (such as copper, aluminum, etc.), the fixing plate is made of metals or non-metals with good mechanical properties (such as iron, stainless steel, mica, ceramics, etc.) to bear weight and prevent deformation under heat. The heating layer consists of two layers of non-metallic sheets with excellent insulation properties (such as mica, glass fiber, etc.), and an electric heating device composed of an electric heating wire or electric heating film wound on an insulating component between the non-metallic sheets. The mounting post is used to connect the electric heating plate to the outer shell, or to connect the combined sensor to the electric heating plate. The recessed platform is preferably located on one side of the heat-conducting plate. This not only facilitates the installation of the combined sensor, or heat-conducting plate accessories, or other devices, but also beautifies the receiving hole with the installation device, maintaining the appearance and performance of the electric heating plate.

[0031] The combined sensor is a combined device disposed at the receiving hole, including: a mounting component, a container sensor for detecting the container temperature, and a heating plate sensor for detecting the heating plate temperature; further, the combined sensor is disposed at the receiving hole in the middle of the heating plate by means of a mounting post, or by means of a snap fastener integrated with the mounting component, or a snap ring separate from the mounting component, and is disposed at the receiving hole after being snapped into the lower end of the heating plate receiving hole or the bottom surface of the heating plate fixing plate, including: a mounting component consisting of one or more components, and a container sensor, a heating plate sensor, a displacement sensor, and a thermal fuse integrated with the mounting component; the mounting component includes a mounting and fixing function. This device combines a protective container sensor and / or a heating plate sensor. The displacement sensor disconnects when no container is placed on the container, rendering the heating plate inactive. When a container is placed on the container, the sensor connects, and the heating plate becomes active, effectively preventing the heating plate from burning out. The thermal fuse, clip, and retaining ring are all known technologies and therefore not illustrated or explained in detail. As such, the combined sensor integrates two or more detection functions into a single unit via mounting components. This results in a small size, easy installation, and, through modularization and standardization, facilitates its widespread application across various product categories.

[0032] The container sensor is a combined device in which the temperature-sensing part protrudes from the receiving hole and elastically abuts against the bottom of the container after the container is placed in it, compressing downwards. It includes: a temperature-sensitive device whose physical properties change with temperature, an elastic element, and a protective element. Further, the temperature-sensitive device is a thermistor, a thermistor transistor, a thermistor IC, or an S, R, B, N, E, T, J, or K type thermoelectric electrode. To improve the response speed of temperature detection and efficiently utilize limited space, a thermoelectric electrode is preferred. The temperature-sensing part refers to the portion composed of multiple devices that allows the temperature-sensitive device to quickly obtain the container temperature. The elastic element is a spring, sheet, ring, or pad made of metal or non-metal. The protective element includes devices covering the outside of the temperature-sensitive device and / or the lead-out section.

[0033] The heat plate sensor is a thermoelectric electrode whose working end is located between the heat-conducting plate and its attachment, utilizing the Seebeck effect to collect temperature data of the heating plate. Further, the heat plate sensor is a working end or a transition piece with a working end, which is fixedly or elastically contacted with the surface or bottom surface of the heat-conducting plate, the sidewall of the receiving hole, the bottom surface of the fixed plate, or the bottom surface of the heat-conducting plate attachment. Protective components are provided at both poles from the working end to the free end, and the free end is equipped with an electrical interface (S, R, B, N, E, T, J, K type thermoelectric electrode). The protective components are insulating, protective, and / or shielding devices located between the working end and the free end of the thermoelectric electrode, outside the two poles. The transition piece is a device that is welded, pressed, riveted, or screwed to the working end of the thermoelectric electrode, and can also fully contact the heat-conducting plate to efficiently transfer the temperature of the heat-conducting plate.

[0034] The following combination Figures 1 to 8 The beneficial effects of a cooking appliance equipped with a combined sensor according to the present invention will be further explained.

[0035] First, the structure of the electric heating plate described in this invention is completely different from that of electric heating plates used in traditional cooking appliances. It features light weight, low thermal inertia, rapid heating of the heat-conducting plate, uniform heat distribution, and a large temperature difference between the heat-conducting plate and the fixed plate. Therefore, when the electric heating plate is used in conjunction with the combined sensor, the container sensor and the heating plate sensor can simultaneously and quickly acquire the real-time temperature of the container and the heat-conducting plate. Based on different cooking states, the cooking time and the changes in the two temperatures, especially the temperature parameters of the electric heating plate, as well as the heat conversion rate between the container and the electric heating plate, can be used to implement multi-dimensional data collection, analysis, and judgment during cooking control. This allows for the determination of the container material, the cooking state, etc., and the real-time adjustment of cooking parameters according to the selected function. This improves the overall performance of the cooking appliance and can even integrate the functions of different categories of cooking appliances, increasing the application range and usage frequency of the cooking appliance.

[0036] Therefore, the cooking appliance equipped with a combination sensor is suitable for household or commercial use: electric rice cooker, electric pressure cooker, electric slow cooker, electric steamer, electric multi-purpose cooker, air fryer, health pot, multi-purpose electric stove and other cooking appliances.

Claims

1. A cooking appliance equipped with a combination sensor, characterized in that, include: A container, which is a concave device movably connected to a container body for holding and heating food; The appliance body is the main body of the cooking appliance, including: outer shell, power cord, heating plate, control board, combined sensor, and wires; The electric heating plate is an electric heating assembly with a receiving hole in the middle, including: a metal heat-conducting plate that abuts against the container, a fixing plate, and an electric heating wire-type heating layer with good insulation performance disposed between the heat-conducting plate and the fixing plate, and a mounting post for connecting the components. A combined sensor, which is a combined device disposed at the receiving hole, includes: a mounting component, a container sensor for detecting the temperature of the container, and a heating plate sensor for detecting the temperature of the heating plate. A container sensor, wherein the container sensor is a combined device in which the temperature-sensing part protrudes from the receiving hole and elastically abuts against the bottom of the outer side of the container, including: a temperature-sensitive device whose physical properties change with temperature, an elastic element, and a protective element; A heating plate sensor, wherein the heating plate sensor is a thermoelectric electrode whose working end is disposed between the heat-conducting plate and the heat-conducting plate accessory, and which collects the temperature data of the electric heating plate using the Seebeck effect.

2. A cooking appliance equipped with a combined sensor according to claim 1, characterized in that, The heating plate is a combined electric heating device in the form of a flat plate or a concave-convex shape, which is formed by riveting the heat-conducting plate and the fixing plate together through the outer edge and the middle. The receiving hole in the middle of the heating plate is a straight hole or a conical hole, or a straight hole or a conical hole with a countersunk end. The mounting post is an independent device set on the heating plate, or a protrusion or flange integrated with the fixing plate.

3. A cooking appliance equipped with a combined sensor according to claim 1, characterized in that, The combined sensor is installed at the receiving hole by means of a mounting post, or by means of a buckle integrated with the mounting component, or by means of a retaining ring separate from the mounting component, and is installed at the receiving hole after being snapped into the heating plate. It includes: a mounting component consisting of one or more components, and a container sensor, a heating plate sensor, a displacement sensor, and a thermal fuse integrated with the mounting component.

4. A cooking appliance equipped with a combined sensor according to claim 1, characterized in that, The temperature-sensitive device is a thermistor, a thermistor transistor, a thermistor IC, or an S, R, B, N, E, T, J, or K type thermoelectric electrode.

5. A cooking appliance equipped with a combined sensor according to claim 1, characterized in that, The aforementioned heat plate sensor is a working end or a transition piece with a working end, which is fixedly or elastically abutted against the surface or bottom surface of the heat-conducting plate, or the side wall of the receiving hole, or the bottom surface of the fixed plate, or the bottom surface of the heat-conducting plate accessory. Protective parts are provided on both poles from the working end to the free end, and the free end is provided with S, R, B, N, E, T, J, K type thermoelectrodes with electrical interfaces.

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