Cooker body of microwave rice cooker and microwave rice cooker

Abstract

The utility model relates to the technical field of household appliances, and provides a cooker body of a microwave rice cooker and the microwave rice cooker. A cooker body of the microwave rice cooker comprises a cooking shielding cover, a microwave generating device, a waveguide structure and a microwave shielding structure. A cooking shielding cavity is formed in the cooking shielding cover. The microwave generating device is suitable for generating electromagnetic waves; the waveguide structure is provided with a wave guide channel, a microwave inlet and a microwave outlet, the microwave inlet and the microwave outlet are located at two ends of the wave guide channel, the microwave generating device is correspondingly arranged at the microwave inlet to form electromagnetic waves in the wave guide channel, and the microwave outlet is communicated with the cooking shielding cavity; the microwave shielding structure is provided with a microwave shielding cavity, and the microwave generating device is located in the microwave shielding cavity. According to the cooker body provided by the embodiment of the invention, the microwave shielding cavity is formed in the microwave shielding structure, and the radiation component for generating radiation in the microwave generating device is arranged in the microwave shielding cavity, so that a radiation source influencing normal work of an electronic device is controlled in the microwave shielding cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a pot body of a microwave rice cooker and a microwave rice cooker. Background Art

[0002] With the continuous progress of technology, intelligent rice cookers have become a development trend. Products such as intelligent rice cookers and intelligent cookware have entered thousands of households, bringing great convenience to people's cooking lives. The microwave rice cookers in related technologies can use the principle of microwave penetration heating for heating. Microwaves can evenly penetrate water and ingredients, achieving the effect of rapid and uniform temperature rise throughout the cooking process, greatly improving the cooking efficiency and uniformity. Once microwaves leak, there will be many potential safety hazards. Therefore, the general microwave rice cooker category has relatively high requirements for microwave shielding. If a metal decorative shell of a microwave rice cooker is used to shield microwaves, the metal decorative shell needs to take into account both decorative functions and meet the requirements of microwave shielding, which greatly limits the design diversity of the metal decorative shell and also increases the processing and manufacturing difficulty of the metal decorative shell. Summary of the Utility Model

[0003] This application aims to solve at least one of the technical problems in the related art. Therefore, this application proposes a pot body of a microwave rice cooker to solve the defect that when the existing microwave rice cooker is in use, the escape of electromagnetic waves affects the normal operation of electronic devices.

[0004] This application also proposes a microwave rice cooker.

[0005] The pot body of the microwave rice cooker according to the first aspect embodiment of this application includes:

[0006] A cooking shielding cover, with a cooking shielding cavity formed inside;

[0007] A microwave generating device, adapted to generate electromagnetic waves;

[0008] A waveguide structure, the waveguide structure having a wave guiding channel, and a microwave inlet and a microwave outlet located at both ends of the wave guiding channel. The microwave generating device is correspondingly arranged at the microwave inlet to form electromagnetic waves in the wave guiding channel, and the microwave outlet is communicated with the cooking shielding cavity;

[0009] A microwave shielding structure, the microwave shielding structure having a microwave shielding cavity, the microwave generating device being located in the microwave shielding cavity, and

[0010] A decorative shell, the microwave shielding structure, the waveguide structure, and the microwave generating device are all located inside the decorative shell, and at least part of the cooking shielding cover is located inside the decorative shell.

[0011] For the pot body of the microwave rice cooker according to an embodiment of the present application, a microwave shielding cavity is formed inside the microwave shielding structure, and the radiation components that generate radiation in the microwave generating device are arranged in the microwave shielding cavity, so as to control the radiation source that affects the normal operation of the electronic device in the microwave shielding cavity, and avoid the microwave from affecting the normal operation of the electronic device outside the microwave shielding structure. The microwave shielding structure is mainly used to shield the microwave radiated by the microwave generating device, and the microwave shielding structure mainly meets the microwave shielding requirements, while the decorative shell mainly meets the decorative requirements.

[0012] According to an embodiment of the present application, the microwave shielding structure is provided with an air inlet end and an air outlet end, and both the air inlet end and the air outlet end communicate with the microwave shielding cavity;

[0013] An air inlet is provided at a position corresponding to the air inlet end on the decorative shell, and an air outlet is provided at a position corresponding to the air outlet end on the decorative shell.

[0014] According to an embodiment of the present application, both the air inlet end and the air outlet end are provided with a plurality of ventilation holes, the ventilation holes are circular holes, and the ratio of the radius of the ventilation holes to the wavelength of the electromagnetic wave is 1 / 20 to 1 / 10.

[0015] According to an embodiment of the present application, the air inlet end is arranged on the side wall of the microwave shielding structure, and / or the air inlet end is arranged on a side of the microwave shielding structure away from the cooking shielding cover; the air outlet end is arranged on the side wall of the microwave shielding structure, and / or the air outlet end is arranged on a side of the microwave shielding structure away from the cooking shielding cover.

[0016] According to an embodiment of the present application, it includes a fan assembly, and the fan assembly is arranged in the microwave shielding cavity and is adapted to drive the air flow to flow from the air inlet end to the air outlet end.

[0017] According to an embodiment of the present application, the microwave generating device includes a magnetron and a frequency converter, the magnetron and the frequency converter are arranged side by side, the magnetron is used to generate electromagnetic waves, the magnetron is arranged in the microwave shielding cavity, the frequency converter is connected to the magnetron and is used to adjust the voltage of the magnetron, and the frequency converter is arranged in the microwave shielding cavity;

[0018] The fan assembly includes a first fan and a second fan, the first fan and the second fan are arranged side by side, the first fan is arranged corresponding to the frequency converter, and the second fan is arranged corresponding to the magnetron.

[0019] According to one embodiment of the present application, the first fan and the second fan are both arranged on one side of the air inlet end, and the side wall of the microwave shielding structure protrudes outward corresponding to the first fan and the second fan to form an installation space, and the first fan and the second fan are both arranged in the installation space.

[0020] According to an embodiment of the present application, the side walls of the microwave shielding structure corresponding to the first fan and the second fan are densely covered with evenly distributed ventilation holes;

[0021] And / or, the microwave shielding structure is densely covered with evenly distributed ventilation holes on the side wall corresponding to the frequency converter;

[0022] And / or, the microwave shielding structure is densely covered with evenly distributed ventilation holes corresponding to the top or bottom of the frequency converter.

[0023] According to one embodiment of the present application, the microwave shielding structure includes a microwave shielding cover, and the microwave shielding cover and the side wall of the waveguide structure form the microwave shielding cavity.

[0024] According to one embodiment of the present application, the microwave shielding cover includes a shielding side panel and a shielding bottom plate, the shielding side panel encloses a space with openings at both ends, the shielding bottom plate is detachably installed at one of the openings, and the side wall of the waveguide structure is installed at the other opening, and the shielding side panel, the shielding bottom plate and the side wall of the waveguide structure together enclose the microwave shielding cavity.

[0025] According to one embodiment of the present application, the pot body includes a power board, which is connected to the microwave shielding structure and is located outside the microwave shielding cavity. The microwave shielding structure is provided with a wire passing hole, and the wires of the power board are connected to the microwave generating device through the wire passing hole. The power board is located in the decorative shell.

[0026] According to one embodiment of the present application, the microwave shielding structure is a metal microwave shielding structure, or a metal coating is provided inside the microwave shielding structure.

[0027] The microwave rice cooker according to the second aspect of the present application comprises:

[0028] The rice cooker body;

[0029] The cover body is connected to the pot body and is used for covering the shielding cavity.

[0030] It should be noted that the microwave rice cooker of the present application has all the technical effects of the rice cooker body as it includes the rice cooker body mentioned above, which will not be described in detail here.

[0031] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0032] To more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 is a schematic structural diagram of the pot body of the microwave rice cooker provided by the embodiment of the present application.

[0034] Figure 2 is an exploded structural diagram of the pot body of the microwave rice cooker provided by the embodiment of the present application.

[0035] Figure 3 is a sectional structural diagram of the pot body of the microwave rice cooker provided by the embodiment of the present application.

[0036] Figure 4 is a schematic structural diagram of the microwave rice cooker provided by the embodiment of the present application.

[0037] Figure 5 is a sectional structural diagram of the microwave rice cooker provided by the embodiment of the present application.

[0038] Reference Numerals:

[0039] 100, pot body; 110, cooking shielding cover; 120, cooking shielding cavity; 130, decorative outer shell;

[0040] 200, lid body;

[0041] 300, microwave generating device; 310, frequency converter; 320, magnetron; 330, power supply board;

[0042] 400, microwave shielding structure; 401, microwave shielding cover; 402, shielding side wall panel; 403, shielding bottom plate; 410, microwave shielding cavity; 420, air inlet end; 430, air outlet end; 440, ventilation hole; 450, fan assembly; 451, first fan; 452, second fan; 460, wire passing hole;

[0043] 500, waveguide structure. Detailed Embodiments

[0044] The following will further describe in detail the embodiments of the present application in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0045] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0046] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection, where the fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0047] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0048] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] The following is combined with Figures 1 to 5Describe the pot body of the microwave rice cooker of the present utility model and the microwave rice cooker.

[0050] For the pot body 100 of the microwave rice cooker according to the embodiments of the present application, please refer to Figures 1 to 4 , the pot body 100 includes: a cooking shielding cover 110, a microwave generating device 300, a waveguide structure 500, and a microwave shielding structure 400. A cooking shielding cavity 120 is formed inside the cooking shielding cover 110; the microwave generating device 300 is adapted to generate electromagnetic waves; the waveguide structure 500 has a waveguide channel, and a microwave inlet and a microwave outlet located at both ends of the waveguide channel. The microwave generating device 300 is correspondingly arranged at the microwave inlet to form electromagnetic waves in the waveguide channel, and the microwave outlet is communicated with the cooking shielding cavity 120; the microwave shielding structure has a microwave shielding cavity 410, and the microwave generating device 300 is located inside the microwave shielding cavity 410.

[0051] Further, in some embodiments, the pot body 100 further includes a decorative outer shell 130, and the microwave shielding structure 400, the waveguide structure 500, and the microwave generating device 300 are all located inside the decorative outer shell 130.

[0052] At least a part of the cooking shielding cover 110 is located inside the decorative outer shell 130. The decorative outer shell 130 can completely shield the cooking shielding cover 110 inside, or can shield a part of the cooking shielding cover 110 inside.

[0053] It should be noted that in the present application, when it is stated that a certain component is located inside the decorative outer shell 130, it means that the component is accommodated in the accommodation space formed by the decorative outer shell 130, and the decorative outer shell 130 can play a shielding role for the components accommodated therein, so that the overall appearance of the device is more tidy when observed from the outside of the pot.

[0054] For the pot body 100 of the microwave rice cooker according to the embodiments of the present application, by forming a microwave shielding cavity 410 inside the microwave shielding structure 400, the radiation components that generate radiation in the microwave generating device 300 are arranged in the microwave shielding cavity 410, so as to control the radiation source that affects the normal operation of the electronic devices in the microwave shielding cavity 410, and avoid the microwave from affecting the normal operation of the electronic devices outside the microwave shielding structure 400. The microwave shielding structure 400 is mainly used to shield the microwaves radiated by the microwave generating device 300. The microwave shielding structure 400 mainly meets the microwave shielding requirements, while the decorative outer shell 130 mainly meets the decorative requirements.

[0055] It can be understood that microwave radiation can interfere with sensitive electronic components, resulting in a decline in device performance or malfunctions. The design of the microwave shielding cavity 410 isolates the radiation source, protecting other electronic components from interference. This effectively prevents electromagnetic radiation from interfering with other electronic devices, thereby enhancing the stability and working life of the electronic devices in the rice cooker.

[0056] It can be understood that the waveguide structure 500 can effectively conduct electromagnetic waves to the cooking shielding cavity 120, enabling the food to be heated more evenly, shortening the cooking time, and improving the cooking efficiency and effect.

[0057] In addition, enclosing the radiation components in the microwave shielding cavity 410 reduces the electromagnetic radiation exposure to users and enhances the safety of use. The radiation components typically include the magnetron 320 for generating electromagnetic waves, the frequency converter 310 for changing the voltage of the magnetron 320, and the wires connecting the magnetron 320 and the frequency converter 310.

[0058] The waveguide structure 500 is a bridge connecting the microwave generating device 300 and the cooking shielding cavity 120, and the formed waveguide channel inside ensures the efficient transmission of microwaves.

[0059] According to an embodiment of the present application, the microwave shielding structure 400 is provided with an air inlet end 420 and an air outlet end 430, and both the air inlet end 420 and the air outlet end 430 are communicated with the microwave shielding cavity 410.

[0060] It can be understood that during the operation of the microwave rice cooker, the microwave generating device 300 will generate a certain amount of heat. To ensure the stability and lifespan of the electronic components and the overall device, effective heat dissipation is necessary. Therefore, the air inlet end 420 and the air outlet end 430 are designed in the microwave shielding structure 400, and the heat is carried away by the air flow, keeping the temperature inside the microwave shielding cavity 410 within a safe range.

[0061] The positions and sizes of the air inlet end 420 and the air outlet end 430 are carefully designed to ensure sufficient cooling air flow through the microwave shielding cavity 410.

[0062] Furthermore, in some embodiments, an air inlet is provided at the position of the decorative housing 130 corresponding to the air inlet end 420, and an air outlet is provided at the position of the decorative housing 130 corresponding to the air outlet end 430. In this way, the air outside the cooking body 100 can smoothly pass through the microwave shielding cavity 410 and carry away the heat generated by the components inside the microwave shielding cavity 410.

[0063] A fan assembly 450 can be installed at the air inlet end 420 and the air outlet end 430 to enhance the air circulation effect. Heat sinks can be configured inside the microwave shielding cavity 410 to increase the heat dissipation surface area and improve the heat dissipation efficiency.

[0064] The microwave shielding structure 400 can be made of a highly thermally conductive material, such as aluminum alloy or copper, to improve the thermal conduction efficiency. Of course, the microwave shielding structure 400 can also use other highly thermally conductive materials, and no specific limitations are imposed here.

[0065] According to an embodiment of the present application, a plurality of ventilation holes 440 are provided at both the air inlet end 420 and the air outlet end 430. The ventilation holes 440 are circular holes, and the ratio of the radius of the ventilation holes 440 to the wavelength of the electromagnetic wave is from 1 / 20 to 1 / 10.

[0066] It can be understood that when the ratio of the radius of the ventilation hole 440 to the wavelength of the electromagnetic wave is in the range of 1 / 20 to 1 / 10, when the electromagnetic wave passes through a circular hole much smaller than the wavelength, diffraction will occur, which means that the wavefront of the electromagnetic wave will be bent and diffused, so that they cannot pass through a circular hole much smaller than their wavelength, thus achieving the effect of both opening holes for heat dissipation and shielding radiation.

[0067] In one embodiment, the diameter of the ventilation hole 440 is 8 mm. The wavelength of the electromagnetic wave is 80 mm - 130 mm. Of course, the embodiments here are only for illustration. In actual use, the diameter of the ventilation hole 440 and the wavelength of the electromagnetic wave can also be other values, as long as the ratio of the radius of the ventilation hole 440 to the wavelength of the electromagnetic wave is from 1 / 20 to 1 / 10, the shielding effect and ventilation effect of the microwave shielding structure 400 can be satisfied.

[0068] According to an embodiment of the present application, the air inlet end 420 is provided on the side wall of the microwave shielding structure 400, and / or the air inlet end 420 is provided on the side of the microwave shielding structure 400 away from the cooking shielding cover 110.

[0069] The air outlet end 430 is provided on the side wall of the microwave shielding structure 400, and / or the air outlet end 430 is provided on the side of the microwave shielding structure 400 away from the cooking shielding cover 110.

[0070] In a certain embodiment, the air inlet end 420 and the air outlet end 430 are respectively located on opposite side walls of the microwave shielding structure 400.

[0071] It can be understood that by providing the air inlet end 420 and the air outlet end 430 on the side wall of the microwave shielding structure 400 or on the side away from the cooking shielding cover 110, it is ensured that the heat in the microwave shielding cavity 410 can be quickly discharged, thereby improving the stability and service life of the device.

[0072] It can be understood that setting the air inlet end 420 and the air outlet end 430 on the side of the microwave shielding structure 400 away from the cooking shielding cover 110 can prevent hot air from directly affecting the temperature and microwave distribution in the cooking shielding cavity 120. During actual use, the side of the microwave shielding structure 400 away from the cooking shielding cover 110 faces the bottom of the microwave rice cooker, reducing the potential risk of scalding the user caused by hot air currents during cooking and enhancing the use safety.

[0073] According to an embodiment of the present application, it includes a fan assembly 450. The fan assembly 450 is disposed in the microwave shielding cavity 410 and is adapted to drive the air flow from the air inlet end 420 to the air outlet end 430.

[0074] It can be understood that the function of the fan assembly 450 is to generate an air flow, enabling air to enter from the air inlet end 420, pass through the microwave shielding cavity 410, and finally discharge from the air outlet end 430. This can ensure that the temperature and air flow in the entire microwave shielding cavity 410 are effectively controlled, thereby improving the heat dissipation efficiency and helping to maintain a stable operating temperature in the microwave shielding cavity 410.

[0075] In an embodiment, both the magnetron 320 and the frequency converter 310 are disposed in the microwave shielding cavity 410. The fan assembly 450 is provided with two fans. One fan is disposed corresponding to the magnetron 320, and the other fan is disposed corresponding to the frequency converter 310. The orientations of the two fans can be the same, so that the air inlet directions are the same and the air flows do not interfere with each other, enhancing the air inlet effect.

[0076] According to an embodiment of the present application, the microwave generating device 300 includes a magnetron 320 and a frequency converter 310. The magnetron 320 and the frequency converter 310 are arranged side by side. The magnetron 320 is used to generate electromagnetic waves and is disposed in the microwave shielding cavity 410. The frequency converter 310 is connected to the magnetron 320 and is used to adjust the voltage of the magnetron 320. The frequency converter 310 is disposed in the microwave shielding cavity 410. The fan assembly 450 includes a first fan 451 and a second fan 452. The first fan 451 and the second fan 452 are arranged side by side. The first fan 451 is disposed corresponding to the frequency converter 310, and the second fan 452 is disposed corresponding to the magnetron 320.

[0077] It can be understood that the magnetron 320 and the frequency converter 310 generate a large amount of heat during operation. Placing them in the microwave shielding cavity 410 and dissipating heat through the first fan 451 and the second fan 452 respectively can ensure that the heat is taken away in time, avoid overheating of the equipment, and ensure the long-term stable operation of the equipment. Moreover, the magnetron 320 and the frequency converter 310 respectively correspond to different fans 451, which can minimize the mutual influence between the two heat dissipation processes and avoid the heat of the higher-temperature one affecting the heat dissipation process of the other.

[0078] The frequency converter 310 can accurately adjust the voltage of the magnetron 320, thereby controlling the output power and frequency of the electromagnetic wave, and realizing precise control of the cooking process.

[0079] The magnetron 320, the frequency converter 310 and the fan assembly 450 are all integrated in the microwave shielding cavity 410. Through the microwave shielding cavity 410, the radiation microwave leakage of the magnetron 320 and the frequency converter 310 can be effectively prevented. And the microwave shielding structure 400 can also reduce the influence of external electromagnetic interference on the magnetron 320 and the frequency converter 310, ensuring the stability and reliability of the operation of the magnetron 320 and the frequency converter 310.

[0080] According to an embodiment of the present application, both the first fan 451 and the second fan 452 are arranged on one side of the air inlet end 420, and the side wall of the microwave shielding structure 400 bulges outwards corresponding to the first fan 451 and the second fan 452 to form an installation space. The first fan 451 and the second fan 452 are both arranged in the installation space.

[0081] It can be understood that directly arranging the fan at the air inlet end 420 enables the air flow to be accelerated and guided by the fan before entering the microwave shielding cavity 410, improving the utilization rate of the air flow and the heat dissipation efficiency. At the same time, the installation space formed by the outward bulge of the side wall provides sufficient installation and maintenance space for the fan, and can also reduce the occupation of the internal space of the microwave shielding cavity 410, thereby ensuring that the operation of the magnetron 320 and the frequency converter 310 is not affected and improving the utilization rate of the air flow.

[0082] Directly arranging the fan at the air inlet end 420 can reduce the resistance of the air flow during the transmission process, enabling more cold air to smoothly enter the microwave shielding cavity 410 and enhancing the heat dissipation effect. In addition, the convex installation space can also serve as a buffer zone for the air flow, further reducing the eddy current and resistance generated when the air flow turns or changes direction.

[0083] According to an embodiment of the present application, the side walls of the microwave shielding structure 400 corresponding to the first fan 451 and the second fan 452 are densely distributed with uniformly distributed ventilation holes 440.

[0084] The dense air holes enable the airflows generated by the first fan 451 and the second fan 452 to more effectively enter the interior of the microwave shielding cavity 410 and conduct heat exchange with the heating components. The side walls of the microwave shielding structure 400 corresponding to the first fan 451 and the second fan 452 are densely distributed with evenly distributed ventilation holes 440, optimizing the air intake effect of the fans. The dense air holes allow the fans to inhale more external cold air and efficiently guide it to the interior of the microwave shielding cavity 410. This helps increase the air volume and flow rate generated by the fans, thereby improving the heat dissipation efficiency. At the same time, the evenly distributed ventilation holes 440 can also reduce the resistance of the airflows when passing through the side walls, ensuring the smooth flow of the airflows.

[0085] According to an embodiment of the present application, the side walls of the microwave shielding structure 400 corresponding to the frequency converter 310 are densely distributed with evenly distributed ventilation holes 440.

[0086] The frequency converter 310 is one of the key heating components in the microwave generating device. Densely distributing ventilation holes 440 on the side walls can ensure that more cold air can directly contact the surface of the frequency converter, conduct heat exchange and carry away heat. This design helps reduce the temperature of the frequency converter and prevent it from being damaged due to overheating. At the same time, the evenly distributed ventilation holes can also promote the uniform distribution of the airflows around the frequency converter, improving the heat dissipation effect.

[0087] According to an embodiment of the present application, the top or bottom of the microwave shielding structure 400 corresponding to the frequency converter 310 is densely distributed with evenly distributed ventilation holes 440.

[0088] When the frequency converter is working, by means of the ventilation holes 440 densely distributed on the top or bottom, the hot air can be discharged more quickly, thereby effectively reducing the temperature at the top of the frequency converter. In addition, the ventilation holes on the top or bottom can complement the ventilation holes on the side walls to build a more comprehensive heat dissipation network, improving the heat dissipation efficiency of the entire microwave shielding cavity 410, helping to reduce the residence time of the hot air inside the microwave shielding cavity, and further reducing the temperature inside the device.

[0089] According to an embodiment of the present application, the microwave shielding structure 400 includes a microwave shielding cover 401, and the side walls of the microwave shielding cover 401 and the waveguide structure form a microwave shielding cavity 410.

[0090] It can be understood that the microwave shielding cover 401 forms a closed microwave shielding cavity 410 by closely combining with the side walls of the waveguide structure, while greatly reducing the impact of microwave radiation on the surrounding environment. It should be noted that the closed characteristic of the microwave shielding cavity 410 in the present application specifically means that it can shield microwaves and is not used to limit that it is a closed cavity in terms of space.

[0091] According to an embodiment of the present application, the microwave shielding cover 401 includes a shielding side wall 402 and a shielding bottom plate 403. The shielding side wall 402 encloses a space with two open ends, and the shielding bottom plate 403 is detachably installed at one of the open ends, and the side wall of the waveguide structure is installed at the other open end. The shielding side wall 402, the shielding bottom plate 403, and the side wall of the waveguide structure together enclose a microwave shielding cavity 410.

[0092] It can be understood that the shielding side wall 402 and the shielding bottom plate 403 together form a semi-closed space. The shielding side wall 402 and the shielding bottom plate 403 are combined with the side wall of the waveguide structure 500 to form a complete microwave shielding cavity 410. By using the waveguide structure 500 to enclose the microwave shielding cavity 410, on the one hand, materials are saved, and on the other hand, the height of the cooking body 100 is minimized as much as possible. Moreover, the material used for the waveguide structure 500 itself needs to have the function of shielding microwaves, so the use of the waveguide structure 500 can reduce costs.

[0093] The shielding bottom plate 403 is designed to be detachable, allowing users to easily access the interior of the microwave shielding cavity 410. This design facilitates daily maintenance, cleaning, and replacement or upgrade of internal components.

[0094] According to an embodiment of the present application, the cooking body 100 includes a power supply board 330. The power supply board 330 is connected to the microwave shielding structure 400 and is located outside the microwave shielding cavity 410. The microwave shielding structure 400 is provided with a wire through hole 460, and the wires of the power supply board 330 are connected to the microwave generating device 300 through the wire through hole 460. The power supply board is located inside the decorative housing 130.

[0095] It can be understood that the power supply board 330 is a component used to provide the required power to the microwave generating device 300. It can include power conversion and regulation circuits to ensure a stable power supply.

[0096] The microwave shielding structure 400 is internally provided with wire through holes 460, which can guide wires through the microwave shielding structure 400 to connect various components. The positions and quantities of the wire through holes 460 can be determined according to the requirements of the radiation components.

[0097] In one embodiment, the wire connecting the magnetron 320 and the frequency converter 310 is a shielded cable, and the cable is provided with one or more layers of metal shielding, which can shield electromagnetic radiation inside the wire.

[0098] According to an embodiment of the present application, the microwave shielding structure 400 is a metal microwave shielding structure 400, or a metal coating is provided inside the microwave shielding structure 400.

[0099] It can be understood that the metal microwave shielding structure 400 can play a shielding role to prevent the leakage of microwave signals or external interference, thereby improving the stability and reliability of the system.

[0100] Coating a metal coating inside the microwave shielding structure 400 of non-metallic materials can achieve an effect similar to that of the metal microwave shielding structure 400, playing a shielding role to prevent the leakage of microwave signals or external interference, thereby improving the stability and reliability of the system.

[0101] For the microwave rice cooker according to the embodiments of the present application, please refer to Figure 4 and Figure 5 , the microwave rice cooker includes: the pot body 100 and the lid body 200 of the above-mentioned rice cooker. The lid body 200 is connected to the pot body 100 and is used to cover the cooking shielding cavity 120. The microwave shielding structure 400 prevents microwave leakage into the external environment. This not only protects users from microwave radiation but also ensures the safe operation of surrounding electronic devices.

[0102] The lid body 200 is connected to the pot body 100 and is used to cover the shielding cavity, ensuring the sealing performance of the rice cooker during the cooking process and preventing food from splashing out or steam from leaking.

[0103] It should be noted that since the microwave rice cooker of the present application includes the pot body 100 of the above-mentioned rice cooker, it has all the technical effects of the pot body 100 of the above-mentioned rice cooker, which will not be elaborated here.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and should all be covered within the scope of the claims of the present application.

Claims

1. The pot body (100) of a microwave rice cooker, characterized in that Comprising: A cooking shield (110) with a cooking shielding cavity (120) formed inside; A microwave generating device (300) adapted to generate electromagnetic waves; A waveguide structure (500) having a waveguide channel and a microwave inlet and a microwave outlet at both ends of the waveguide channel. The microwave generating device (300) is correspondingly disposed at the microwave inlet to form electromagnetic waves in the waveguide channel, and the microwave outlet communicates with the cooking shielding cavity (120); A microwave shielding structure (400) having a microwave shielding cavity (410), with the microwave generating device (300) located inside the microwave shielding cavity (410), and A decorative housing (130). The microwave shielding structure (400), the waveguide structure (500), and the microwave generating device (300) are all located inside the decorative housing (130), and at least a part of the cooking shield (110) is located inside the decorative housing (130).

2. The pot body (100) of the microwave rice cooker according to claim 1, characterized in that, The microwave shielding structure (400) is provided with an air inlet end (420) and an air outlet end (430), and both the air inlet end (420) and the air outlet end (430) communicate with the microwave shielding cavity (410); At a position corresponding to the air inlet end (420) on the decorative housing (130), there is an air inlet, and at a position corresponding to the air outlet end (430) on the decorative housing (130), there is an air outlet.

3. The pot body (100) of the microwave rice cooker according to claim 2, characterized in that, Both the air inlet end (420) and the air outlet end (430) are provided with a plurality of ventilation holes (440). The ventilation holes (440) are circular holes, and the ratio of the radius of the ventilation holes (440) to the wavelength of the electromagnetic waves is from 1 / 20 to 1 / 10.

4. The pot body (100) of the microwave rice cooker according to claim 2, characterized in that, The air inlet end (420) is disposed on the side wall of the microwave shielding structure (400), and / or the air inlet end (420) is disposed on a side of the microwave shielding structure (400) away from the cooking shield (110); the air outlet end (430) is disposed on the side wall of the microwave shielding structure (400), and / or the air outlet end (430) is disposed on a side of the microwave shielding structure (400) away from the cooking shield (110).

5. The pot body (100) of the microwave rice cooker according to claim 2, characterized in that, Comprising a fan assembly (450). The fan assembly (450) is disposed inside the microwave shielding cavity (410) and is adapted to drive air flow from the air inlet end (420) to the air outlet end (430).

6. The pot body (100) of the microwave rice cooker according to claim 5, characterized in that, The microwave generating device (300) includes a magnetron (320) and a frequency converter (310). The magnetron (320) and the frequency converter (310) are arranged side by side. The magnetron (320) is used to generate electromagnetic waves. The magnetron (320) is disposed inside the microwave shielding cavity (410), and the frequency converter (310) is connected to the magnetron (320) and is used to adjust the voltage of the magnetron (320). The frequency converter (310) is disposed inside the microwave shielding cavity (410); The blower assembly (450) includes a first blower (451) and a second blower (452). The first blower (451) and the second blower (452) are arranged side by side. The first blower (451) is arranged corresponding to the frequency converter (310), and the second blower (452) is arranged corresponding to the magnetron (320).

7. The pot body (100) of the microwave rice cooker according to claim 6, characterized in that, Both the first blower (451) and the second blower (452) are arranged on one side of the air inlet end (420). The side wall of the microwave shielding structure (400) bulges outwards corresponding to the first blower (451) and the second blower (452) to form an installation space, and both the first blower (451) and the second blower (452) are arranged in the installation space.

8. The pot body (100) of the microwave rice cooker according to claim 6, characterized in that, The side walls of the microwave shielding structure (400) corresponding to the first blower (451) and the second blower (452) are densely distributed with uniformly distributed ventilation holes (440); and / or, the side wall of the microwave shielding structure (400) corresponding to the frequency converter (310) is densely distributed with uniformly distributed ventilation holes (440); and / or, the top or bottom of the microwave shielding structure (400) corresponding to the frequency converter (310) is densely distributed with uniformly distributed ventilation holes (440).

9. The pot body (100) of the microwave rice cooker according to any one of claims 1 to 8, characterized in that, The microwave shielding structure (400) includes a microwave shielding cover (401), and the side walls of the microwave shielding cover (401) and the waveguide structure (500) form the microwave shielding cavity (410).

10. The pot body of the microwave rice cooker according to claim 9, characterized in that, The microwave shielding cover (401) includes a shielding side panel (402) and a shielding bottom plate (403). The shielding side panel (402) encloses a space with two open ends. The shielding bottom plate (403) is detachably installed at one of the open ends, and the side wall of the waveguide structure (500) is installed at the other open end. The shielding side panel (402), the shielding bottom plate (403) and the side wall of the waveguide structure (500) together enclose the microwave shielding cavity (410).

11. The pot body (100) of the microwave rice cooker according to any one of claims 1 to 8, characterized in that, The pot body (100) includes a power supply board (330). The power supply board (330) is connected to the microwave shielding structure (400) and is located outside the microwave shielding cavity (410). The microwave shielding structure (400) is provided with a wire passing hole (460). The wire of the power supply board (330) passes through the wire passing hole (460) to connect the microwave generating device. The power supply board (330) is located inside the decorative housing (130).

12. The pot body (100) of the microwave rice cooker according to any one of claims 1 to 8, characterized in that, The microwave shielding structure (400) is a metal microwave shielding structure, or a metal coating is provided inside the microwave shielding structure (400).

13. A microwave rice cooker, characterized in that, Comprising: The pot body (100) of the microwave rice cooker according to any one of claims 1 to 12; A cover body (200), connected to the pot body (100) for covering the cooking shielding cavity (120). The cover body (200) and the microwave shielding structure (400) are respectively on the opposite sides of the cooking shielding cover (110).

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