Optical fiber temperature measurement structure and cooking device

Abstract

The application relates to an optical fiber temperature measurement structure and a cooking device. The optical fiber temperature measurement structure is used for the cooking device. The cooking device comprises an inner container provided with an inner cavity. The optical fiber temperature measurement structure comprises a fixing seat, a temperature measurement assembly and a signal processing assembly. The fixing seat is arranged on the side wall of the inner container and is provided with a plug hole in communication with the inner cavity. The temperature measurement assembly is detachably inserted into the plug hole. The temperature measurement assembly comprises a light source and an optical fiber. The light source emits excitation light. The end of the optical fiber away from the light source is provided with a reaction layer. The excitation light emitted by the light source is transmitted to the reaction layer through the optical fiber and excites the reaction layer to emit a signal. The signal processing assembly is in communication connection with the temperature measurement assembly and can acquire a temperature signal of the inner cavity based on the signal. When temperature measurement is performed, the end provided with the reaction layer faces or is inserted into food. The light source in the temperature measurement assembly emits excitation light. The excitation light is transmitted to the reaction layer at the end of the optical fiber through the optical fiber. The reaction layer is excited and emits a signal related to the temperature in the inner cavity after receiving the excitation light.

Description

Technical Field

[0001] This application relates to the field of cooking equipment, and in particular to a fiber optic temperature measurement structure and cooking equipment. Background Technology

[0002] Most microwave ovens on the market, especially those with temperature measurement functions, generally use infrared temperature sensing. This technology uses infrared sensors to detect the surface temperature of food; however, it has several limitations in practical applications. First, the installation and fixing angle of the infrared sensor are critical, requiring a transparent window to sense the food's temperature. This places high demands on the layout of the machine and the placement of the food, limiting design flexibility. Second, in combined cooking functions with high steam output, such as steam microwave or steam-bake microwave, the steam generated in the inner cavity can severely affect the infrared sensor's temperature sensing performance, leading to inaccurate temperature measurements. Furthermore, due to the high internal temperature of combined microwave ovens, the infrared sensor typically requires a separate heat dissipation structure for protection, further increasing the complexity and cost of the equipment. Utility Model Content

[0003] Therefore, it is necessary to provide a fiber optic temperature measurement structure and cooking device that is simple to install, unaffected by the position of steam and food, and requires no additional heat dissipation structure to address the above problems.

[0004] This utility model first provides a fiber optic temperature measurement structure for use in cooking equipment. The cooking equipment includes an inner pot, which has an inner cavity, comprising:

[0005] A fixing seat is provided on the side wall of the inner liner, and the fixing seat is provided with an insertion hole communicating with the inner cavity;

[0006] A temperature measuring component is detachably inserted into the socket. The temperature measuring component includes a light source and an optical fiber. The light source is used to emit excitation light. A reaction layer is provided at the end of the optical fiber away from the light source. The excitation light emitted by the light source is transmitted to the reaction layer through the optical fiber and excites the reaction layer to emit a signal.

[0007] A signal processing component is communicatively connected to the temperature sensing component and is able to acquire the temperature signal of the cavity based on the signal.

[0008] This configuration, by placing the mounting base on the inner wall of the cooking equipment and providing an insertion hole communicating with the inner cavity, offers a convenient interface for the detachable installation of the temperature sensing component. During temperature measurement, the temperature sensing component is removed, with the end containing the reaction layer facing or inserted into the food. The light source in the temperature sensing component emits excitation light, which is transmitted through an optical fiber to the reaction layer at the end of the fiber. Upon receiving the excitation light, the reaction layer is excited and emits a signal. The signal processing component receives and analyzes the signal emitted by the reaction layer. Since the characteristics of the signal emitted by the reaction layer have a monotonic correlation with temperature, the signal processing component can accurately calculate and obtain the temperature signal inside the inner cavity.

[0009] In one embodiment, the temperature measuring component further includes a protective layer disposed around the outer periphery of the optical fiber, the protective layer having a detection port corresponding to the reaction layer.

[0010] This design provides physical protection for the optical fiber and the reactive layer, preventing them from being mechanically damaged or contaminated during insertion, removal, or use; the probe ports on the protective layer ensure that the reactive layer can have full contact with the environment being tested.

[0011] In one embodiment, the protective layer is a stainless steel protective layer.

[0012] With this design, the stainless steel protective layer has excellent corrosion resistance, high temperature resistance, grease resistance, high strength, easy cleaning, and waterproof rating of up to IP56, meeting food-grade safety standards. It can effectively protect the internal optical fibers and reaction layer from damage in the complex chemical and physical environment inside the cooking equipment.

[0013] In one embodiment, the end of the optical fiber away from the light source is coated with a fluorescent material to form the reaction layer.

[0014] With this setup, the fluorescent material emits fluorescence upon receiving excitation light of a specific wavelength, and the fluorescence decay time has a precise monotonic relationship with the ambient temperature. By measuring the fluorescence decay time, the signal processing component can accurately calculate the current temperature.

[0015] In one embodiment, the fixing base includes a plug-in portion and a limiting portion. The limiting portion is disposed on the plug-in portion and is used to limit the axial displacement of the temperature measuring component along the plug hole. The plug hole passes through the plug-in portion axially.

[0016] This design provides precise guidance and fitting space for the insertion of the temperature measuring component, ensuring that the temperature measuring component can be smoothly inserted and removed; while the limiting part can effectively prevent the temperature measuring component from axially displacing due to vibration or external force during the cooking process after it is inserted into place.

[0017] In one embodiment, the limiting portion is disposed at one end of the insertion portion away from the inner cavity, and includes a first elastic arm extending axially from the insertion portion along the insertion hole and a first abutting arm extending from one end of the first elastic arm away from the insertion portion toward the central axis of the insertion hole.

[0018] This design provides the necessary elastic deformation space for the first elastic arm, enabling the temperature sensing component to overcome limiting resistance during insertion or removal, thus achieving smooth insertion and removal operations. The first abutting arm, after the temperature sensing component is inserted into place, abuts against the corresponding structure of the temperature sensing component, effectively limiting the axial displacement of the temperature sensing component along the insertion hole.

[0019] In one embodiment, the fiber optic temperature sensing structure further includes a sealing sleeve fitted around the outer periphery of the insertion portion, the sealing sleeve being used for a sealing connection with the side wall of the inner liner; and / or,

[0020] The fiber optic temperature measurement structure also includes a protective cover sleeved around the plug portion and located on the outside of the inner liner.

[0021] This design allows the sealing sleeve to effectively form a reliable seal between the plug and the inner wall of the cooking vessel, preventing steam, liquid, or food residue generated during cooking from leaking through the plug into the electrical components inside the cooking equipment. The protective cover provides additional physical protection for the mounting base, preventing it from being bumped, scratched, or accidentally damaged during daily use.

[0022] In one embodiment, the fiber optic temperature measurement structure further includes a pull ring located inside the inner cavity and connected to the temperature measurement component.

[0023] This design provides a convenient grip for the user, allowing them to easily pull the temperature sensor out of the socket or insert it into the food when needed.

[0024] This application also provides a cooking device, including the aforementioned fiber optic temperature measurement structure.

[0025] With this configuration, the cooking equipment, by integrating the aforementioned fiber optic temperature sensing structure, can accurately measure the temperature of food inside the cavity. Compared to traditional infrared temperature sensing cooking equipment, its installation and sealing structure is simpler, eliminating the need for complex viewing windows and angle fixing devices. Food placement is unrestricted, and there is no need to design a separate heat dissipation structure for the temperature sensing components. This reduces the overall complexity of the equipment and improves the temperature control accuracy and ease of use during the cooking process.

[0026] In one embodiment, the cooking device further includes a control component, and the signal processing component is electrically connected to the control component.

[0027] With this setup, the precise temperature signals acquired by the signal processing component are transmitted to the control component of the cooking appliance via an electrical connection. Based on these temperature signals, the control component can precisely adjust the microwave power, heating time, or cooking mode. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional schematic diagram of the fiber optic temperature measurement structure provided in this application.

[0030] Figure 2 A schematic diagram of the structure of the mounting base provided in this application.

[0031] Figure 3 This is a schematic diagram of the temperature measuring component provided in this application.

[0032] Reference numerals: 1. Temperature measuring component; 11. Grip part; 12. Slot; 2. Fixing base; 21. Insertion part; 22. Limiting part; 221. First elastic arm; 222. First abutting arm; 3. Insertion hole; 4. Sealing sleeve; 5. Protective cover; 6. Pull ring; 200. Inner liner; 201. Inner cavity. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is 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. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0038] Most microwave ovens on the market, especially those with temperature measurement functions, generally use infrared temperature sensing. This technology uses infrared sensors to detect the surface temperature of food; however, it has several limitations in practical applications. First, the installation and fixing angle of the infrared sensor are critical, requiring a transparent window to sense the food's temperature. This places high demands on the layout of the machine and the placement of the food, limiting design flexibility. Second, in combined cooking functions with high steam output, such as steam microwave or steam-bake microwave, the steam generated in the inner cavity can severely affect the infrared sensor's temperature sensing performance, leading to inaccurate temperature measurements. Furthermore, due to the high internal temperature of combined microwave ovens, the infrared sensor typically requires a separate heat dissipation structure for protection, further increasing the complexity and cost of the equipment.

[0039] Therefore, in order to solve the above problems, such as Figures 1 to 3 As shown, this application provides a fiber optic temperature measurement structure and cooking device that has a simple installation structure, is unaffected by the position of steam and food, and requires no additional heat dissipation structure.

[0040] like Figure 1As shown, this application provides a fiber optic temperature measurement structure for a cooking device. The cooking device includes an inner pot 200, which has an inner cavity 201. The fiber optic temperature measurement structure includes a fixing base 2, a temperature measurement component 1, and a signal processing component. The fixing base 2 is disposed on the side wall of the inner pot 200 and has an insertion hole 3 communicating with the inner cavity 201. The temperature measurement component 1 is detachably inserted into the insertion hole 3 and includes a light source and an optical fiber. The light source is used to emit excitation light, and a reaction layer is provided at the end of the optical fiber away from the light source. The excitation light emitted by the light source is transmitted to the reaction layer through the optical fiber and excites the reaction layer to emit a signal. The signal processing component is communicatively connected to the temperature measurement component 1 and can obtain the temperature signal of the inner cavity 201 based on the signal.

[0041] With this configuration, by placing the fixing base 2 on the side wall of the inner pot 200 of the cooking equipment and providing an insertion hole 3 communicating with the inner cavity 201, a convenient interface is provided for the detachable installation of the temperature measuring component 1. When measuring temperature, the temperature measuring component 1 is removed, and the end with the reaction layer is facing or inserted into the food. The light source in the temperature measuring component 1 emits excitation light, which is transmitted through an optical fiber to the reaction layer at the end of the optical fiber. The reaction layer is excited and emits a signal after receiving the excitation light. The signal processing component receives and analyzes the signal emitted by the reaction layer. Since the characteristics of the signal emitted by the reaction layer (such as the fluorescence afterglow decay time) are monotonically correlated with temperature, the signal processing component can accurately calculate and obtain the temperature signal inside the inner cavity 201.

[0042] Specifically, the optical fiber itself is composed of dielectric materials, making it naturally immune to microwaves, radio frequencies, and strong electromagnetic fields. This avoids the problems of traditional electrical sensors being susceptible to electromagnetic interference, self-heating, or arcing in microwave heating environments, ensuring the accuracy and stability of temperature measurement. The temperature measuring component 1 is designed to be detachable and inserted into the food, allowing temperature measurement to go beyond the food's surface and directly obtain the true temperature of the food's core. This solves the problem of infrared temperature measurement being unable to detect the internal temperature of food, thus enabling more precise cooking control and preventing uneven cooking. At the same time, since the temperature measuring component 1 is directly inserted into the food, its temperature sensing effect is not affected by the food's placement. Furthermore, the optical fiber temperature measuring structure does not require a complex transparent window or a separate heat dissipation structure for the sensor. Its detachability simplifies the installation structure of the equipment, reducing manufacturing costs and maintenance difficulty. In combined cooking functions that generate a large amount of steam, such as steaming and boiling, the optical fiber probe is directly inserted into the food, and the optical fiber is not affected by steam condensation, ensuring the accuracy and reliability of temperature measurement and improving the practicality and user experience of the cooking equipment in multi-functional scenarios.

[0043] The signal processing component and the temperature measuring component 1 can be connected by optical fiber or electrical connection; the signal processing component and the temperature measuring component 1 can be designed as an integrated structure or the signal processing component can be set separately outside the inner liner 200.

[0044] like Figure 1 As shown, in one embodiment, the temperature measuring component 1 further includes a protective layer disposed around the outer periphery of the optical fiber, the protective layer having a detection port corresponding to the reaction layer. This arrangement provides physical protection for the optical fiber and the reaction layer, preventing mechanical damage or contamination during insertion, removal, or use; the detection port on the protective layer ensures that the reaction layer can fully contact the measured environment, allowing excitation light to reach the reaction layer and generate a signal, while also allowing the signal emitted by the reaction layer to be received by the optical fiber and transmitted back to the signal processing component, thereby ensuring the accuracy of the temperature measurement.

[0045] Specifically, the protective layer is a stainless steel protective layer. This design provides the stainless steel protective layer with excellent corrosion resistance, high temperature resistance, grease resistance, high strength, easy cleaning, and IP56 waterproof rating, meeting food-grade safety standards. It effectively protects the internal optical fibers and reaction layer from damage in the complex chemical and physical environment of the cooking equipment. Simultaneously, the stainless steel protective layer has strong anti-interference properties, completely immune to microwaves, radio frequencies, and strong electromagnetic fields. During microwave and microwave combination functions, it can quickly and accurately measure the internal and external temperatures of food, preventing microwave arcing and ensuring the long-term stability, hygiene, and safety of the temperature measuring component 1.

[0046] In one embodiment, the end of the optical fiber furthest from the light source is coated with a fluorescent material to form a reactive layer. With this configuration, the fluorescent material emits fluorescence upon receiving excitation light of a specific wavelength, and the fluorescence decay time has a precise monotonic relationship with the ambient temperature. By measuring the fluorescence decay time, the signal processing components can accurately calculate the current temperature; this fluorescence thermometry principle offers advantages such as high precision, high sensitivity, and complete immunity to electromagnetic interference, ensuring the reliability of temperature measurement in the strong electromagnetic field environment of a microwave oven.

[0047] In another implementation, the fluorescent material can be replaced with other types of temperature-sensitive materials, such as certain semiconductor materials, which also generate temperature-related electrical signals when exposed to excitation light, to meet the requirements of different temperature measurement ranges and accuracy.

[0048] In another implementation, the reactive layer may not be in the form of a coating, but rather the end of the optical fiber may be directly fused or encapsulated with a micro glass bead or crystal containing fluorescent material to form an independent temperature sensing unit, thereby improving the stability and durability of the reactive layer.

[0049] like Figure 2As shown, the fixing base 2 includes a plug-in portion 21 and a limiting portion 22. The limiting portion 22 is disposed on the plug-in portion 21 and is used to limit the axial displacement of the temperature measuring component 1 along the insertion hole 3. The insertion hole 3 passes through the plug-in portion 21 axially. With this configuration, the plug-in portion 21 provides precise guidance and fitting space for the insertion of the temperature measuring component 1, ensuring that the temperature measuring component 1 can be smoothly inserted and removed. The limiting portion 22, after the temperature measuring component 1 is inserted into place, can effectively prevent it from axially displacing due to vibration or external force during cooking, ensuring that the temperature measuring component 1 always remains in the correct temperature measuring position, avoiding temperature measuring errors or component detachment caused by displacement.

[0050] The limiting part 22 and the insertion part 21 can be designed as a single-piece structure. This design reduces assembly steps and improves the overall structural integrity of the fixing base 2.

[0051] In another embodiment, the limiting part 22 and the insertion part 21 can be designed as separate molding structures.

[0052] like Figure 2 As shown in the illustrated embodiment, the limiting part 22 is disposed at the end of the insertion part 21 away from the inner cavity 201, including a first elastic arm 221 extending axially from the insertion part 21 along the insertion hole 3 and a first abutting arm 222 extending from the end of the first elastic arm 221 away from the insertion part 21 toward the central axis of the insertion hole 3. This arrangement provides the necessary elastic deformation space for the first elastic arm 221, enabling the temperature sensing component 1 to overcome limiting resistance during insertion or removal, achieving smooth insertion and removal operations. The first abutting arm 222, after the temperature sensing component 1 is inserted into place, abuts against the corresponding structure of the temperature sensing component 1, thereby effectively limiting the axial displacement of the temperature sensing component 1 along the insertion hole 3 and ensuring its stability in the working state.

[0053] Specifically, the temperature measuring component 1 is also provided with a slot 12 corresponding to the first abutment arm 222.

[0054] Specifically, there are two limiting parts 22. This arrangement provides symmetrical and balanced axial restraint on the temperature sensing component 1, making its positioning in the socket 3 more stable and reliable. It avoids the shaking or uneven force that might occur with single-point restraint, thereby improving the service life and temperature measurement stability of the temperature sensing component 1. In another embodiment, the number of limiting parts 22 can be one, three, or more.

[0055] In another embodiment, the limiting part 22 may also be provided on the inner wall of the insertion part 21, and may be designed as one, two, three or more protrusions or buckles evenly distributed around the insertion part 21 to provide more uniform support and limiting, and further enhance stability.

[0056] like Figure 1 As shown, in one embodiment, the fiber optic temperature measurement structure further includes a sealing sleeve 4 fitted around the outer periphery of the insertion portion 21. The sealing sleeve 4 is used for a sealed connection with the side wall of the inner liner 200. Specifically, the sealing sleeve 4 is a sealing plug detachably disposed around the outer periphery of the insertion portion 21 and is press-fitted with the insertion portion 21. With this configuration, the sealing sleeve 4 can effectively form a reliable seal between the insertion portion 21 and the side wall of the inner liner 200, preventing steam, liquid, or food residue generated during cooking from leaking through the insertion hole 3 into the electrical component area inside the cooking equipment, thereby protecting the internal circuitry, extending the equipment's lifespan, and ensuring food hygiene and safety. The detachable and press-fit design of the sealing sleeve 4 makes it easy to clean or replace when needed, resulting in low maintenance costs.

[0057] like Figure 1 and Figure 3 As shown, in one embodiment, the fiber optic temperature measurement structure further includes a protective cover 5 sleeved around the plug portion 21 and located outside the inner liner 200. This arrangement provides the protective cover 5 with additional physical protection for the mounting base 2, preventing it from being bumped, scratched, or accidentally damaged during daily use; simultaneously, the protective cover 5 also enhances the appearance and may provide some heat insulation, making it safer for users when touching the area of ​​the mounting base 2.

[0058] The protective cover 5 is made of silicone or rubber. Silicone or rubber protective covers 5 have good elasticity and flexibility, effectively absorbing impacts and providing excellent shock protection. At the same time, these materials typically have good high-temperature resistance, insulation, and a non-slip feel, allowing the protective cover 5 to not only protect the mounting base 2 but also provide users with a more comfortable and safer gripping experience.

[0059] like Figure 1 As shown, in one embodiment, the fiber optic temperature measurement structure also includes a pull ring 6, which is located inside the inner cavity 201 and connected to the temperature measurement component 1. This arrangement provides the user with a convenient gripping point, allowing the user to easily pull the temperature measurement component 1 out of the socket 3 or insert it into food when needed; simultaneously, the pull ring 6, located inside the inner cavity 201, can be stored near the side wall of the inner cavity 201 when not in use, without occupying extra space, facilitating user operation and cleaning.

[0060] In another implementation, the pull ring 6 can be designed as a foldable or retractable structure that can be retracted when not in use, thus avoiding taking up space or hindering cleaning.

[0061] like Figure 1As shown, in one embodiment, the temperature measuring component 1 further includes a gripping part 11, which is a cylindrical shape that is narrow in the middle and wide at both ends. This cylindrical shape of the gripping part 11 provides users with an ergonomic gripping experience, allowing them to hold the temperature measuring component 1 more stably and comfortably when inserting or removing it, preventing slippage and improving the convenience and safety of operation.

[0062] In another embodiment, the grip portion 11 may be designed with finger grooves or anti-slip textures to further enhance the user's grip in wet or oily environments.

[0063] like Figure 1 As shown, this application also provides a cooking device including the aforementioned fiber optic temperature measurement structure. With this configuration, the cooking device, by integrating the fiber optic temperature measurement structure, can achieve accurate measurement of the food temperature within the inner cavity 201. Compared to traditional infrared temperature measurement cooking devices, its installation and sealing structure is simpler, eliminating the need for complex viewing windows and angle fixing devices. The food placement is unrestricted, and there is no need to design a separate heat dissipation structure for the temperature measurement component 1, reducing the overall complexity of the device and improving the temperature control accuracy and ease of use during the cooking process.

[0064] In another implementation, the cooking device can be designed as a modular structure, with the temperature measuring component 1 and the mounting base 2 as independent modules, which users can install or replace as needed, enhancing the scalability and versatility of the device.

[0065] The cooking appliance also includes a control component. A signal processing component is electrically connected to the control component and can transmit temperature signals from the inner cavity 201 to the control component. This configuration allows the precise temperature signals acquired by the signal processing component to be transmitted to the control component of the cooking appliance via electrical connection. Based on these temperature signals, the control component can precisely adjust microwave power, heating time, or cooking mode, such as automatically stopping heating when the food reaches a preset temperature. This achieves automated and intelligent control of the cooking process, ensuring the food is cooked to its ideal state and avoiding overcooking or undercooking.

[0066] The fiber optic temperature measurement structure and control components can be controlled by a voice module. The module is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the fiber optic temperature measurement structure to perform corresponding operations, thereby realizing intelligent control of the fiber optic temperature measurement structure and improving the user experience.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A fiber optic temperature measurement structure for use in a cooking device, the cooking device comprising an inner pot (200) having an inner cavity (201), characterized in that, include: A fixing seat (2) is provided on the side wall of the inner liner (200), and the fixing seat (2) is provided with an insertion hole (3) communicating with the inner cavity (201). A temperature measuring component (1) is detachably inserted into the socket (3). The temperature measuring component (1) includes a light source and an optical fiber. The light source is used to emit excitation light. A reaction layer is provided at the end of the optical fiber away from the light source. The excitation light emitted by the light source is transmitted to the reaction layer through the optical fiber and excites the reaction layer to emit a signal. The signal processing component is communicatively connected to the temperature measuring component (1) and is able to obtain the temperature signal of the cavity (201) based on the signal.

2. The fiber optic temperature measurement structure according to claim 1, characterized in that, The temperature measuring component (1) also includes a protective layer arranged on the outer periphery of the optical fiber, and the protective layer is provided with a detection port corresponding to the reaction layer.

3. The fiber optic temperature measurement structure according to claim 2, characterized in that, The protective layer is a stainless steel protective layer.

4. The fiber optic temperature measurement structure according to claim 1, characterized in that, The end of the optical fiber furthest from the light source is coated with a fluorescent material to form the reaction layer.

5. The fiber optic temperature measurement structure according to claim 1, characterized in that, The fixing base (2) includes a plug-in part (21) and a limiting part (22). The limiting part (22) is disposed on the plug-in part (21) and is used to limit the axial displacement of the temperature measuring component (1) along the plug hole (3). The plug hole (3) passes through the plug-in part (21) axially.

6. The fiber optic temperature measurement structure according to claim 5, characterized in that, The limiting part (22) is disposed at one end of the plug-in part (21) away from the inner cavity (201), and includes a first elastic arm (221) extending axially from the plug-in part (21) along the plug hole (3) and a first abutting arm (222) extending from one end of the first elastic arm (221) away from the plug-in part (21) toward the central axis of the plug hole (3).

7. The fiber optic temperature measurement structure according to claim 5, characterized in that, The fiber optic temperature measurement structure further includes a sealing sleeve (4) fitted around the outer periphery of the insertion part (21), the sealing sleeve (4) being used for a sealing connection with the side wall of the inner liner (200); and / or, The fiber optic temperature measurement structure also includes a protective cover (5) sleeved on the outer periphery of the plug (21) and located on the outside of the inner liner (200).

8. The fiber optic temperature measurement structure according to claim 1, characterized in that, The fiber optic temperature measurement structure also includes a pull ring (6), which is located inside the inner cavity (201) and connected to the temperature measurement component (1).

9. A cooking device, characterized in that, Includes the fiber optic temperature measurement structure according to any one of claims 1-8.

10. The cooking apparatus according to claim 9, characterized in that, The cooking device also includes a control component, and the signal processing component is electrically connected to the control component.

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