Cover body structure of microwave cooking utensil and microwave cooking utensil

Abstract

The utility model discloses a microwave cooking utensil cover body structure and microwave cooking utensil, relates to kitchen appliance technical field, the cover body structure includes shell, door body and temperature measurement module, the door body is connected with the shell, and encloses the cavity with the shell, the door body is the shielding door body, is used for shielding the microwave, the temperature measurement module is used for measuring the temperature of the microwave cooking utensil, and the temperature measurement module is used for measuring the temperature of the microwave cooking utensil. The door body is provided with a first through hole communicated with the accommodating cavity; the temperature measurement module is connected to the door body and located in the containing cavity, and the detection end of the temperature measurement module corresponds to the first through hole. According to the technical scheme provided by the utility model, the position deviation between the detection end of the temperature measurement module and the through hole in the door body is avoided, and the temperature measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a lid structure and microwave cooking appliance. Background Technology

[0002] Existing microwave cooking appliances, when reheating food, generally do not generate a large amount of water vapor, so traditional contact sensors cannot accurately identify the temperature of the food. They can only vaguely control the temperature of the food by controlling the heating time. However, since the amount and type of food added by the user cannot be identified, it is easy for the food to be overheated or underheated, which affects the user experience.

[0003] To address the aforementioned issues, a long-range infrared temperature sensor can be installed on the lid. However, during assembly, the infrared temperature sensor is first installed on the inner lid, and then the metal door is attached to it. A through-hole is provided on the metal door, through which the infrared sensor probe detects the temperature of the food inside the cavity. However, due to assembly precision issues, there will be a positional misalignment between the infrared sensor and the metal door. This causes the edge of the hole to obstruct the measurement range of the infrared sensor probe, resulting in inaccurate overall temperature readings of the food. Utility Model Content

[0004] The main purpose of this invention is to propose a cover structure and cooking appliance for microwave cooking, which aims to avoid positional deviation between the detection end of the temperature measuring module and the through hole on the door, thereby improving the accuracy of temperature measurement.

[0005] To achieve the above objectives, this utility model proposes a lid structure for a microwave cooking appliance, the lid structure comprising:

[0006] case;

[0007] The door body, which is a shielded door body, is used to shield microwaves to prevent microwaves in the cooking cavity of the microwave cooking appliance from leaking out from the cover structure. The door body is connected to the housing and forms a cavity with the housing. The door body has a first through hole communicating with the cavity; and

[0008] A temperature measuring module is connected to the door body and located in the cavity, with the detection end of the temperature measuring module corresponding to the first through hole.

[0009] In one embodiment, the temperature measuring module includes a mounting box and a temperature measuring component, wherein the mounting box is detachably connected to the door body;

[0010] The temperature measuring component is disposed inside the mounting box, the mounting box is provided with a through hole, and the detection end of the temperature measuring component is set corresponding to the through hole.

[0011] In one embodiment, the temperature measuring component includes a control board and a temperature measuring probe, the control board and the temperature measuring probe being disposed within the mounting box, and the temperature measuring probe being an infrared sensor probe;

[0012] The temperature probe is set as the detection end of the temperature measuring component, the temperature probe is electrically connected to the control board, and is set corresponding to the via.

[0013] In one embodiment, the temperature measuring module further includes a filter element connected to the mounting box and covering the through hole.

[0014] In one embodiment, the temperature measuring module further includes a sealing ring, which is connected to the mounting box and seals the through hole with the filter.

[0015] In one embodiment, the sealing ring includes a cylindrical body and a limiting ring connected to the cylindrical body. The cylindrical body is sleeved on the outer periphery of the mounting box. The outer edge of the limiting ring is connected to the cylindrical body. The inner ring of the limiting ring extends toward the through hole relative to the outer edge of the limiting ring. The limiting ring cooperates with the mounting box to clamp the filter.

[0016] In one embodiment, the mounting box is provided with a mounting groove corresponding to the filter, the mounting groove is connected to the through hole, the filter is limited to the mounting groove, and the limiting ring extends along the opening of the mounting groove.

[0017] In one embodiment, the mounting box has a boss extending outwardly around the through hole, and the cylindrical body covers the boss.

[0018] In one embodiment, the field of view θ of the temperature measuring component satisfies: 30°≤θ≤120°;

[0019] And / or, the diameter d1 of the first through hole satisfies: d1≤12mm;

[0020] And / or, the sealing ring is provided with an opening that connects to the first through hole, and the diameter d2 of the opening satisfies: 8mm≤d2≤11mm.

[0021] In one embodiment, the cover structure further includes a movable cover plate connected to the door body. The movable cover plate is located on the side of the door body facing away from the housing, and the movable cover plate has a second through hole corresponding to the first through hole.

[0022] In one embodiment, the sealing ring further includes a folded portion disposed between the movable cover plate and the door body, wherein the two sides of the folded portion elastically abut against the movable cover plate and the door body, respectively.

[0023] In one embodiment, the door body is provided with a fixing seat corresponding to the first through hole.

[0024] The mounting base has a locking hole corresponding to the temperature measuring module, and the temperature measuring module has a locking protrusion corresponding to the locking hole. The locking protrusion is located within the locking hole, so that the temperature measuring module and the mounting base can be detachably connected.

[0025] This utility model also proposes a microwave cooking appliance, which includes:

[0026] The pot body has a cooking cavity; the pot body also contains a microwave generating module and a waveguide module, the microwave generating module generating microwaves and the waveguide module transmitting the microwaves into the cooking cavity; and

[0027] As described above, the lid structure is movably connected to the pot body and is used to cover the cooking cavity.

[0028] The technical solution of this utility model connects the temperature measuring module directly to the door body, and then assembles the shell and the door body. The temperature measuring end of the temperature measuring module is set to correspond to the first through hole of the door body. This can reduce the assembly difficulty of the temperature measuring module and the door body, and avoid the positional deviation between the measuring end of the temperature measuring module and the first through hole of the door body during the assembly of the cover structure, which would cause the edge of the first through hole to block the measuring end of the temperature measuring module, thereby ensuring the accuracy of temperature measurement by the temperature measuring module. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the structure of a cooking utensil in one embodiment of this utility model;

[0031] Figure 2 A cross-sectional structural diagram of a cooking utensil in one embodiment of this utility model;

[0032] Figure 3 A cross-sectional structural diagram of the door and temperature measuring module in one embodiment provided by this utility model;

[0033] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0034] Figure 5A schematic diagram of the structure of the door and the temperature measuring module in one embodiment of this utility model;

[0035] Figure 6 An exploded view of the door body and temperature measuring module in one embodiment provided by this utility model;

[0036] Figure 7 This is an exploded structural diagram of the temperature measuring module in one embodiment of the present invention.

[0037] Explanation of icon numbers:

[0038] 100. Cover structure; 1. Shell; 2. Door; 21. Cavity; 22. First through hole; 23. Fixing base; 231. Snap hole; 3. Temperature measuring module; 31. Mounting box; 311. Mounting cavity; 312. Through hole; 313. Mounting groove; 314. Boss; 315. Snap protrusion; 316. Box base; 317. Box cover; 32. Temperature measuring component; 321. Control board; 322. Temperature probe; 323. Filter; 33. Sealing ring; 331. Cylindrical body; 332. Limiting ring; 333. Opening; 334. Folding part; 4. Movable cover plate; 41. Second through hole; 200. Cooking utensil; 5. Pot body; 51. Cooking cavity; 52. Microwave generating module; 53. Waveguide module.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] In related technologies, a long-distance infrared temperature sensor is installed on the lid for temperature measurement. However, during the assembly of the infrared temperature sensor, it is first installed on the inner lid, and then the metal door is assembled onto the inner lid. A through hole is provided on the metal door, through which the probe of the infrared sensor detects the temperature of the food in the cavity. However, due to assembly precision issues, there will be a positional misalignment between the infrared sensor and the metal door. This causes the edge of the hole to block the measurement range of the infrared sensor probe, resulting in inaccurate overall temperature measurement of the food by the infrared temperature sensor.

[0044] To address the aforementioned issues, this invention proposes a cover structure 100 and a microwave cooking appliance 200, aiming to prevent positional deviation between the detection end of the temperature measuring module 3 and the door 2, ensuring that the temperature measuring range of the temperature measuring module 3 is not obstructed, and improving the accuracy of temperature measurement.

[0045] Please refer to the reference. Figures 1 to 7 As shown, in one embodiment of the present invention, the cover structure 100 includes a shell 1, a door 2 and a temperature measuring module 3. The door 2 is connected to the shell 1 and forms a cavity 21 with the shell 1. The door 2 is provided with a first through hole 22 communicating with the cavity 21. The temperature measuring module 3 is connected to the door 2 and is located in the cavity 21. The detection end of the temperature measuring module 3 is set corresponding to the first through hole 22.

[0046] In this embodiment, the lid structure 100 is used to cover the pot body 5. When the lid structure 100 covers the pot body 5, the door 2 is located on the side of the shell 1 closest to the pot body 5. The detection end of the temperature measuring module 3 measures the temperature of the food inside the pot body 5 in real time through the first through hole 22 to accurately heat the food. The temperature measuring module 3 is located within the cavity 21 formed by the shell 1 and the door 2 to reduce the possibility of water vapor generated during food heating entering the temperature measuring module 3. During the assembly of the lid structure 100, the temperature measuring module 3 is connected to the door 2, and then the shell 1 is connected to the door 2 to improve the assembly accuracy of the temperature measuring module 3 and the door 2. This ensures that the detection end of the temperature measuring module 3 is aligned with the first through hole 22, thereby avoiding the door 2 from obstructing the detection end of the temperature measuring module 3 during assembly. This allows the temperature measuring module 3 to have a sufficient temperature measuring range for the food, improving the accuracy of the temperature measurement.

[0047] In some embodiments, the door 2 is a shielding door used to shield microwaves and prevent microwaves from leaking from the cooking cavity 51 of the microwave cooking appliance 200 through the cover structure 100. It should be noted that, generally, to achieve microwave shielding, the diameter d1 of the first through hole 22 on the door 2 needs to meet certain requirements, such as d1 ≤ 12mm. If the temperature measuring module 3 is first installed on other structures of the cover structure 100 besides the door 2, and then these other structures with the temperature measuring module 3 are assembled with the door 2, the assembly precision requirements between the door 2 and these other structures will be high to ensure the accurate alignment of the temperature measuring module 3 with the first through hole 22 on the door 2, resulting in assembly difficulties. However, in this application, the temperature measuring module 3 is connected directly to the door 2, ensuring the accurate alignment of the temperature measuring module 3 with the first through hole 22 on the door 2, which greatly reduces assembly difficulty and ensures accurate temperature measurement.

[0048] In practical implementation, the temperature measuring module 3 can be located in the middle of the door 2 to facilitate overall temperature measurement of the food. The lid structure 100 can be used in microwave cooking appliances such as rice cookers or microwave ovens. When the lid structure 100 is used in a microwave rice cooker, the door 2 serves as a shielding door to prevent microwave leakage from the cooking cavity of the appliance. The shell 1 can be made of plastic, serving both decorative and external protective functions. The door 2 can be made of stainless steel or other microwave-shielding materials, providing support, fixation, and preventing microwave leakage. The shell 1 and door 2 can be connected by bolts, rivets, or snap-fit ​​structures, etc., without specific limitations.

[0049] In one embodiment of this utility model, such as Figures 3 to 7As shown, the temperature measuring module 3 includes a mounting box 31 and a temperature measuring component 32. The mounting box 31 is connected to the door body 2, for example, the mounting box 31 is detachably connected to the door body 2; the temperature measuring component 32 is located inside the mounting box 31, the mounting box 31 is provided with a through hole 312, and the detection end of the temperature measuring component 32 is set corresponding to the through hole 312.

[0050] In this embodiment, the temperature measuring component 32 is housed within the mounting box 31 to reduce the potential impact of moisture generated during food cooking on the temperature measuring component 32. The mounting box 31 is detachably connected to the door body 2 to facilitate the maintenance and replacement of the temperature measuring module 3. When assembling the cover structure 100, the temperature measuring component 32 and the mounting box 31 are assembled first, and then the temperature measuring module 3 is installed as a whole onto the door body 2, which improves the assembly efficiency of the temperature measuring module 3. The mounting box 31 has a through hole 312, through which the detection end of the temperature measuring component 32 measures the temperature of the food. It is understood that the through hole 312, the first through hole 22, and the detection end of the temperature measuring component 32 are coaxially arranged to avoid the mounting box 31 or the door body 2 obstructing the detection end of the temperature measuring component 32 and affecting its temperature measuring range.

[0051] In actual implementation, the mounting box 31 includes a base 316 and a cover 317. After the temperature measuring component 32 is installed in the base 316, the cover 317 closes onto the base 316, forming a mounting cavity 311. The temperature measuring component 32 is located in the mounting cavity 311. The base 316 and the cover 317 are sealed with adhesive to prevent moisture or other impurities from entering the mounting cavity 311 from between the base 316 and the cover 317, which could affect the temperature measuring component 32 and cause it to malfunction or become inaccurate. The mounting box 31 can be detachably connected to the door 2 by screws or a snap-fit ​​structure, etc., which is not specifically limited here.

[0052] In one embodiment of this utility model, such as Figure 4 and Figure 7 As shown, the temperature measuring component 32 includes a control board 321 and a temperature measuring probe 322, which are located inside the mounting box 31. The temperature measuring probe 322 is set as the detection end of the temperature measuring component 32, and is electrically connected to the control board 321 and is set with a corresponding through hole 312.

[0053] In this embodiment, the control board 321 and the temperature probe 322 are electrically connected. The temperature probe 322 detects the temperature of the food through the through hole 312 of the mounting box 31 and the first through hole 22 of the door 2. The control board 321 is used to acquire the detected temperature of the temperature probe 322 and transmit the relevant temperature information to the control module related to the cooking appliance, so that the cooking appliance can heat accurately and improve the user experience. It can be understood that the temperature probe 322 can be an infrared sensor probe, which detects the temperature of the food through the infrared radiation emitted by the food. The mounting box 31 is also provided with a notch for the connection wire of the control board 321 to pass through, so that the control board 321 and the relevant control module can be electrically connected by a connection wire, which is arranged in the cavity 21.

[0054] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the temperature measuring module 3 also includes a filter 323, which is connected to the mounting box 31 and covers the through hole 312.

[0055] In this embodiment, the filter 323 is used to block the through hole 312 of the mounting box 31, so that the temperature measuring component 32 is located in the closed mounting cavity 311, preventing water vapor generated during heating or cooking from entering the mounting cavity 311 and causing the temperature measuring component 32 to malfunction or the temperature measurement to be inaccurate. At the same time, the filter 323 can filter out light of specific frequency bands, which helps to improve the sensitivity and temperature measurement accuracy of the temperature measuring probe 322.

[0056] In actual implementation, the filter 323 and the mounting box 31 can be sealed with glue or a sealing ring 33. When assembling the filter 323, the filter 323 covers the through hole 312 from the outside of the mounting box 31. Thus, when the temperature measuring module 3 is installed on the door 2 corresponding to the first through hole 22, the filter 323 also covers the first through hole 22 to prevent water vapor or other impurities produced during food cooking from entering the cavity 21 through the first through hole 22, causing contamination or affecting the normal conduction of the connection lines.

[0057] In one embodiment of this utility model, such as Figures 3 to 7 As shown, the temperature measuring module 3 also includes a sealing ring 33, which is connected to the mounting box 31 and seals the through hole 312 with the filter 323. The sealing ring 33 further improves the sealing performance of the mounting cavity 311, effectively enhancing the reliability of the temperature measuring component 32 and reducing its malfunction rate. In actual implementation, the sealing ring 33 is made of silicone, which has good heat resistance and corrosion resistance, and can adapt to heating or cooking environments. Simultaneously, the silicone sealing ring 33 also has good elasticity, providing a better sealing effect under pressure.

[0058] In one embodiment of this utility model, such as Figure 4 and Figure 7 As shown, the sealing ring 33 includes a cylindrical body 331 and a limiting ring 332 connected to the cylindrical body 331. The cylindrical body 331 is sleeved on the outer periphery of the mounting box 31. The outer edge of the limiting ring 332 is connected to the cylindrical body 331. The inner ring of the limiting ring 332 extends toward the through hole 312 relative to the outer edge of the limiting ring 332. The limiting ring 332 cooperates with the mounting box 31 to clamp the filter 323.

[0059] In this embodiment, the cylindrical body 331 is fitted onto the outer periphery of the mounting box 31 to achieve assembly with the mounting box 31. The limiting ring 332 extends toward the through hole 312, that is, in the axial direction, the projection of the limiting ring 332 and the projection of the filter 323 at least partially overlap. In this way, the filter 323 and the mounting box 31 can cooperate to clamp the filter 323, so as to ensure the sealing of the mounting box 31 at the through hole 312, and at the same time improve the reliability of the filter 323 being fixed to the mounting box 31. Understandably, the sealing ring 33 has a certain degree of elasticity. When the temperature measuring module 3 is connected to the door body 2, one side of the limiting ring 332 presses against the filter 323, and the other side of the limiting ring 332 presses against the door body 2. The elasticity of the limiting ring 332 itself makes the limiting ring 332 and the filter 323, and the limiting ring 332 and the door body 2 contact more tightly, so as to ensure the sealing effect between the filter 323 and the mounting box 31, and between the filter 323 and the door body 2. In actual implementation, the cylindrical body 331 and the limiting ring 332 are integrally formed.

[0060] In one embodiment of this utility model, such as Figure 4 As shown, the mounting box 31 is provided with a mounting groove 313 corresponding to the filter 323. The mounting groove 313 is connected to the through hole 312. The filter 323 is limited to the mounting groove 313. The limiting ring 332 extends along the opening of the mounting groove 313.

[0061] In this embodiment, the filter 323 is disposed within the mounting groove 313 of the mounting box 31. The mounting groove 313 facilitates the positioning and installation of the filter 323, and also reduces the possibility of displacement of the filter 323 after assembly. Optionally, the depth of the mounting groove 313 is equal to the thickness of the filter 323, and the size of the mounting groove 313 is comparable to the size of the filter 323. When the filter 323 is installed in the mounting groove 313, the end face of the filter 323 is flush with the opening of the mounting groove 313, and the limiting ring 332 extends along the opening of the mounting groove 313 to limit the filter 323 within the mounting groove 313.

[0062] Optionally, the limiting ring 332 has an annular protrusion on the side facing the filter 323, and the annular protrusion abuts against the filter 323. It is understood that when the temperature measuring module 3 is connected to the door 2, the limiting ring 332 is subjected to pressure from the door panel and the filter 323 along the axial direction of the first through hole 22. Since the limiting ring 332, the filter 323, and the door panel are arranged in parallel, the annular protrusion increases the deformation stroke of the limiting ring 332 in the axial direction. Correspondingly, the annular protrusion also contacts the filter 323 more tightly, and the limiting ring 332 contacts the door panel more tightly, further improving the sealing effect of the sealing ring 33.

[0063] In one embodiment of this utility model, such as Figure 4 As shown, the mounting box 31 has a boss 314 extending outward around the through hole 312, and the cylindrical body 331 covers the boss 314.

[0064] In this embodiment, the cylindrical body 331 is configured to cover the boss 314, thereby improving the reliability of the connection with the mounting box 31. It is understood that one end of the cylindrical body 331 extends at least to the side of the boss 314 away from the limiting ring 332, to achieve a limiting fit with the boss 314 and prevent the sealing ring 33 from falling off the mounting box 31. The cylindrical body 331 may form a limiting groove, within which the boss 314 is confined, thus achieving the covering of the boss 314 by the cylindrical body 331. Optionally, the cylindrical body 331 includes a first part and a second part connected at an angle. The first part and the limiting ring 332 are respectively connected to both ends of the second part. The limiting ring 332 is also set at an angle to the second part. The first part, the second part, and the limiting ring 332 together form a limiting groove, within which the boss 314 is confined, achieving a limiting fit with the sealing ring 33.

[0065] In one embodiment of this utility model, such as Figure 4 and Figure 7As shown, the field of view θ of the temperature measuring component 32 satisfies: 30°≤θ≤120°. In this embodiment, the field of view of the temperature measuring component 32 is the same as the field of view of the detection end of the temperature measuring component 32. When the temperature measuring probe 322 is set as the detection end of the temperature measuring component 32, the field of view of the temperature measuring component 32 is the same as the field of view of the temperature measuring probe 322. The temperature measuring range of the temperature measuring probe 322 is determined by the field of view of the temperature measuring probe 322. If the field of view of the temperature measuring probe 322 is too small, the temperature measuring range of the temperature measuring probe 322 will be too small. At this time, the temperature measuring probe 322 can only measure the temperature of a local area of ​​the food and cannot grasp the overall temperature of the food, which will result in poor overall temperature control when heating the food. If the field of view of the temperature measuring probe 322 is too large, the temperature measuring probe 322 may capture interference radiation unrelated to the food, which will result in insufficient accuracy of food temperature detection and affect the accuracy of food temperature measurement. Optionally, the field of view of the temperature probe 322 can be 30°, 45°, 60°, 70°, 90°, 100° or 120°, etc. The field of view of the temperature probe 322 can be selected according to actual needs, and no specific limitation is made here.

[0066] Optionally, the aperture d1 of the first through hole 22 satisfies: d1≤12mm; when the cover structure 100 is applied to a microwave rice cooker, the door 2 is a microwave shielded door, and the aperture of the first through hole 22 is not greater than 12mm, so as to reduce the possibility of microwave leakage from the first through hole 22 to the outside of the cover structure 100 and causing harm to the human body.

[0067] Optionally, the sealing ring 33 has an opening 333 communicating with the first through hole 22, and the diameter d2 of the opening 333 satisfies: 8mm≤d2≤11mm. In this embodiment, the temperature measuring component 32 measures the temperature of the food through the through hole 312, the opening 333, and the first through hole 22. The diameter of the opening 333 should not be too large or too small. If the diameter of the opening 333 is too large, the area covered by the filter 323 by the sealing ring 33 will be too small, thereby reducing the reliability of sealing the through hole 312. If the diameter of the opening 333 is too small, the sealing ring 33 will block the field of view of the temperature measuring probe 322, affecting the detection of the overall temperature of the food, and thus resulting in poor overall temperature control when heating the food. Understandably, the diameter of the opening 333 is generally not larger than the diameter of the first through hole 22, and the diameter of the opening 333 can be 8mm, 9mm, 10mm, or 11mm, etc., without specific limitation.

[0068] In one embodiment of this utility model, such as Figure 4 As shown, the cover structure 100 also includes a movable cover plate 4, which is connected to the door body 2 and has a second through hole 41 corresponding to the first through hole 22.

[0069] In this embodiment, the movable cover 4 is located on the side of the door 2 facing away from the housing 1, and has a second through hole 41, allowing the temperature measuring module 3 to measure the temperature of the food through the second through hole 41. When the cover structure 100 is used in cooking scenarios such as cooking rice or porridge, the food needs to be placed in the cooking cavity 51 of the cooking appliance 200 through the inner pot. At this time, the movable cover 4 will close the opening of the inner pot to prevent steam leakage, improve cooking efficiency, and reduce the possibility of food overflowing from the inner pot. At the same time, during the heat preservation stage, the movable cover 4 can also play a role in heat preservation and moisture retention.

[0070] In actual implementation, the movable cover 4 can be detachably connected to the door 2 via a snap-fit ​​structure. When the cooking appliance 200 is used to reheat food, the movable cover 4 is not required; when the cooking appliance 200 is used to cook food, the movable cover 4 can be installed. Understandably, the diameter of the second through hole 41 on the movable cover 4 is larger than the diameter of the first through hole 22 to avoid obstructing the temperature measurement range of the temperature measuring module 3 and affecting the temperature measurement accuracy.

[0071] In one embodiment of this utility model, such as Figure 4 As shown, the sealing ring 33 also includes a folding part 334 disposed between the movable cover plate 4 and the door body 2, with the two sides of the folding part 334 elastically abutting against the movable cover plate 4 and the door body 2 respectively.

[0072] In this embodiment, when the movable cover plate 4 is assembled to the door body 2, the folding portion 334 elastically abuts against both the movable cover plate 4 and the door body 2 to improve the sealing between them and prevent moisture from entering between them through the second through hole 41, causing contamination and making cleaning difficult. Understandably, during assembly, the folding portion 334 of the sealing ring 33 extends from the first through hole 22 between the movable cover plate 4 and the door body 2, and the sealing ring 33 covers the wall of the first through hole 22, which is beneficial to the sealing of the door body 2 and the temperature measuring module 3. In actual implementation, the cross-section of the folding portion 334 can be V-shaped, W-shaped, or other bent shapes to ensure sufficient elastic deformation capacity. When the movable cover plate 4 is assembled to the door body 2, the movable cover plate 4 and the door body 2 press against the folding portion 334 from both sides, and the folding portion 334 springs back to both sides, thus abutting the movable cover plate 4 and the door body 2 more tightly.

[0073] In one embodiment of this utility model, such as Figures 5 to 7 As shown, the door body 2 is provided with a fixing seat 23 corresponding to the first through hole 22, the fixing seat 23 is provided with a locking hole 231 corresponding to the temperature measuring module 3, and the temperature measuring module 3 is provided with a locking protrusion 315 corresponding to the locking hole 231. The locking protrusion 315 is limited in the locking hole 231, so that the temperature measuring module 3 and the fixing seat 23 can be detachably connected.

[0074] In this embodiment, the temperature measuring module 3 is connected to the door body 2 through a snap-fit ​​engagement with the fixing base 23. During assembly, the fixing base 23 can be first connected to the door body 2 by means of glue, screws, or rivets, and then the temperature measuring module 3 is assembled onto the fixing base 23. This reduces the assembly difficulty of the temperature measuring module 3, improves the assembly efficiency, and enables a detachable connection with the door body 2, facilitating the maintenance or replacement of the temperature measuring module 3. Optionally, the fixing base 23 can also be provided with screw holes, and the temperature measuring module 3 can be locked to the fixing base 23 by the thread engagement of screws with the screw holes.

[0075] This utility model also proposes a microwave cooking appliance 200, such as... Figures 1 to 3 As shown, the microwave cooking appliance 200 includes a pot body 5 and a lid structure 100. The specific structure of the lid structure 100 is as described in the above embodiments. Since the lid structure 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The pot body 5 is provided with a cooking cavity 51, and the lid structure 100 is movably connected to the pot body 5, and the lid structure 100 is used to cover the cooking cavity 51.

[0076] In this embodiment, the microwave cooking appliance 200 can be a microwave rice cooker. When the cooking appliance 200 is a microwave rice cooker, the inside of the cooker body 5 is also provided with a microwave generating module 52 and a waveguide module 53. The microwave generating module 52 is used to generate microwaves, and the waveguide module 53 transmits microwaves into the cooking cavity 51 to reheat or cook the food in the cooking cavity 51.

[0077] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cover structure of a microwave cooking appliance, characterized by, The cover structure comprises: a shell; a door body, which is a shielding door body for shielding microwaves to prevent the microwaves in a cooking cavity of the microwave cooking appliance from leaking from the cover structure, the door body being connected to the shell and forming a containing cavity together with the shell, the door body being provided with a first through hole communicating with the containing cavity; and a temperature measurement module connected to the door body and located in the containing cavity, a detection end of the temperature measurement module corresponding to the first through hole.

2. The cover structure of claim 1, wherein The temperature measurement module comprises a mounting box and a temperature measurement assembly, the mounting box being detachably connected to the door body; The temperature measurement assembly is arranged in the mounting box, and the mounting box is provided with a through hole, and the detection end of the temperature measurement assembly corresponds to the through hole.

3. The cover structure of claim 2, wherein The temperature measurement assembly comprises a control board and a temperature measurement probe, and the control board and the temperature measurement probe are arranged in the mounting box, and the temperature measurement probe is an infrared sensor probe; The temperature measurement probe is arranged as the detection end of the temperature measurement assembly, and the temperature measurement probe is electrically connected to the control board and corresponds to the through hole.

4. The cover structure of claim 2, wherein The temperature measurement module further comprises a filter sheet connected to the mounting box and covering the through hole.

5. The cover structure of claim 4, wherein, The temperature measurement module further comprises a sealing ring connected to the mounting box and sealing the through hole together with the filter sheet.

6. The cover structure of claim 5, wherein The sealing ring comprises a cylindrical main body and a limiting ring connected to the cylindrical main body, the cylindrical main body being sleeved on the outer periphery of the mounting box, the outer edge of the limiting ring being connected to the cylindrical main body, the inner ring of the limiting ring extending towards the through hole relative to the outer edge of the limiting ring, and the limiting ring and the mounting box cooperating to clamp the filter sheet.

7. The cover structure of claim 6, wherein The mounting box is provided with a mounting groove corresponding to the filter sheet, the mounting groove being arranged in communication with the through hole, the filter sheet being limited in the mounting groove, and the limiting ring extending along the groove of the mounting groove.

8. The cover structure of claim 6, wherein The mounting box is provided with a boss extending outward around the through hole, and the cylindrical main body covers the boss.

9. The cover structure of claim 5, wherein The field of view angle θ of the temperature measurement assembly satisfies: 30°≤θ≤120°; And / or, the aperture diameter d1 of the first through hole satisfies: d1≤12mm; And / or, the sealing ring is provided with an opening hole communicating with the first through hole, and the aperture diameter d2 of the opening hole satisfies: 8mm≤d2≤11mm.

10. The cover structure of any one of claims 5 to 9, wherein, The cover structure further comprises a movable cover plate connected to the door body, the movable cover plate being arranged on the side of the door body away from the shell, and the movable cover plate being provided with a second through hole corresponding to the first through hole.

11. The cover structure of claim 10, wherein, The sealing ring further comprises a folding portion arranged between the movable cover plate and the door body, and the two sides of the folding portion elastically abut against the movable cover plate and the door body, respectively.

12. The cover structure of any one of claims 1 to 9, wherein, The door body is provided with a fixing seat corresponding to the first through hole, The fixing seat is provided with a clamping hole corresponding to the temperature measurement module, the temperature measurement module is provided with a clamping convex corresponding to the clamping hole, the clamping convex is limited in the clamping hole, and the temperature measurement module and the fixing seat are detachably connected.

13. A microwave cooking appliance, characterized in that The microwave cooking appliance comprises: A pot body is provided with a cooking cavity; the pot body is internally provided with a microwave generating module and a waveguide module, the microwave generating module is used for generating microwaves, and the waveguide module transmits the microwaves into the cooking cavity; and The cover structure as claimed in any one of claims 1 to 12 is movably connected to the pot body, and is used for covering the cooking cavity.

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