Microwave generation assembly and cooking equipment

Abstract

The embodiment of the invention provides a microwave generating assembly and cooking equipment, and the microwave generating assembly comprises a magnetron which is used for generating microwaves; the air supply unit is arranged corresponding to the magnetron, and the air supply unit is used for blowing air to the magnetron; the at least one first waveguide tube is connected with the magnetron, and a driving air duct is arranged in the first waveguide tube; the wind power driving part is rotatably arranged in the driving air duct, and at least part of air driven by the air supply unit flows into the driving air duct to drive the wind power driving part to rotate; the first stirring blade is in transmission connection with the wind power driving part, and the first stirring blade rotates along with the rotation of the wind power driving part; wherein the first waveguide tube is provided with at least one microwave feed port facing the first stirring blade. According to the technical scheme, the air flow driven by the air supply unit can be used for driving the first stirring blade through the wind power driving part, the space occupied by the stirring system can be reduced through wind power driving, and the equipment volume ratio is increased.

Description

Technical Field

[0001] This invention relates to the field of microwave technology, and more specifically, to a microwave generating component and a cooking device. Background Technology

[0002] Currently, microwave ovens have become common kitchen appliances. Flatbed microwave ovens have poor heating uniformity during operation. In related technologies, a stirring system is built into the microwave oven, which uses a physical method to stir the microwaves by driving a motor to rotate. However, the structure of the system occupies a large space, resulting in a low overall volume ratio. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, an embodiment of the first aspect of the present invention provides a microwave generating component.

[0005] A second aspect of the present invention provides a cooking apparatus.

[0006] To achieve the above objectives, an embodiment of the first aspect of the present invention provides a microwave generating assembly, comprising: a magnetron for generating microwaves; an air supply unit corresponding to the magnetron for blowing air onto the magnetron; at least one first waveguide connected to the magnetron, the first waveguide having a drive duct inside; a wind-driven component rotatably disposed within the drive duct, wherein at least a portion of the air driven by the air supply unit flows into the drive duct to drive the wind-driven component to rotate; and a first stirring plate connected to the wind-driven component, the first stirring plate rotating with the rotation of the wind-driven component; wherein the first waveguide has at least one microwave feed port facing the first stirring plate, and the microwaves generated by the magnetron are fed outward through the first waveguide and the first stirring plate.

[0007] According to the microwave generating assembly proposed in this invention, the first stirring blade can be driven by airflow driven by the air supply unit through a wind-driven drive component. This wind-driven stirring mechanism reduces the space occupied by the stirring system and increases the equipment's volumetric efficiency. Specifically, the magnetron is the core component of the microwave oven, responsible for generating high-frequency microwaves. The microwave energy generated by the magnetron can penetrate food, causing water molecules in the food to vibrate and generate heat, thereby heating the food. The air supply unit is positioned corresponding to the magnetron, facilitating air cooling of the magnetron during rotation and preventing overheating. Simultaneously, the airflow generated by the air supply unit provides power to the wind-driven drive component, thus achieving uniform microwave heating. The first waveguide connects the magnetron and the wind-driven drive component, providing a channel for microwave transmission and also forming an internal driving air duct for airflow to the wind-driven drive component. The wind force is transmitted through the driving air duct, driving the wind-driven drive component to rotate, thereby driving the first stirring blade and achieving uniform microwave distribution.

[0008] It is important to emphasize that this solution provides a wind-driven component to rotate the first stirring plate. Located within the drive duct inside the first waveguide, the rotation of the wind-driven component drives the connected first stirring plate, achieving a stirring effect, thereby disturbing the microwaves and improving heating uniformity. The first stirring plate, acting as a microwave antenna, is connected to the wind-driven component and rotates with it, thus stirring the microwave field and ensuring a more uniform microwave distribution within the microwave oven cavity, preventing uneven heating of food.

[0009] It should be added that the microwave feed port is the opening on the first waveguide that faces the first stirring plate. Microwaves can enter the microwave oven cavity through the microwave feed port under the action of the first stirring plate. The design of the microwave feed port ensures that microwaves can enter the cavity evenly and interact with the first stirring plate, improving heating efficiency. By utilizing the microwaves generated by the magnetron and the airflow generated by the air supply unit, uniform distribution of microwaves is achieved within the microwave oven cavity, thereby improving heating efficiency and quality.

[0010] In some technical solutions, optionally, the two ends of the driving air duct are respectively provided with an air inlet and an air outlet, the air inlet is provided with multiple first openings, and the air outlet is provided with multiple second openings; wherein, the maximum size of the first opening is not greater than 5mm, and the maximum size of the second opening is not greater than 5mm.

[0011] In this technical solution, by setting an air inlet and an air outlet on the drive duct, air can flow into the drive duct through the air inlet, drive the wind-driven component to rotate within the drive duct, and then flow out through the air outlet. It is important to emphasize that this solution is designed for microwave scenarios. To reduce microwave leakage through the air inlet and air outlet, multiple small openings are provided on both outlets, namely the first opening and the second opening, and their opening sizes are all less than or equal to 5mm, thereby effectively blocking 2.45GHz microwaves.

[0012] It should be added that the opening shape of the first and second openings includes, but is not limited to, regular shapes such as round holes, square holes, and rectangular holes, or irregular hole shapes, as long as the size of the opening in any direction does not exceed 5mm.

[0013] In some technical solutions, optionally, the first waveguide specifically includes: a waveguide cavity, one end of which is provided with a microwave inlet, through which microwaves emitted by the magnetron enter the waveguide cavity; wherein, an air inlet and an air outlet are provided on the cavity wall of the waveguide cavity, and a driving air duct is formed inside the waveguide cavity.

[0014] In this technical solution, the first waveguide includes a waveguide cavity, which constitutes the physical space for microwave transmission and the operation of the wind-driven components. One end of the waveguide cavity is provided with a microwave inlet, which is the connection point between the magnetron and the waveguide cavity. Microwaves enter the waveguide cavity through this inlet and begin their transmission process within the first waveguide.

[0015] In addition, the air inlet and air outlet are located on the cavity wall of the waveguide cavity. The air inlet allows the air force generated by the air supply unit to enter the interior of the waveguide cavity, forming a driving air channel, while the air outlet allows the air force to flow out. Under the action of the driving air channel, the air force generated by the air supply unit is guided to the wind drive component, causing it to rotate. Through the design of the driving air channel, the directional flow of air force can be realized, the driving efficiency of the wind drive component can be improved, and the stirring effect of the first stirring plate can be improved, thus achieving uniform microwave heating.

[0016] It should be added that the waveguide cavity serves as both a space for propagating microwaves and a space for airflow.

[0017] In some technical solutions, optionally, the air inlet direction and air outlet direction of the driving air duct are not parallel, and the microwave generating component also includes: a flow guiding structure, which is disposed in the driving air duct, and the air flowing into the driving air duct flows out through the air outlet via the flow guiding structure.

[0018] In this technical solution, by designing non-parallel inlet and outlet air directions, the airflow can be guided to form a specific flow pattern within the drive duct. The non-parallel design ensures that the airflow path is not straight, which helps to meet the overall size requirements, i.e., reducing the size in a single direction, resulting in a smaller overall component volume. Furthermore, by setting a guide structure, the air flowing into the drive duct can be guided to flow out through the outlet in a predetermined direction and speed.

[0019] In addition, the guide structure can reduce turbulence and eddies in the wind duct, thereby reducing energy loss and improving the efficiency of wind power utilization.

[0020] Furthermore, the air intake direction can be up and down, and the air outlet direction can be front and back or left and right.

[0021] In some technical solutions, the wind-driven component may optionally include: a rotating shaft rotatably disposed within a drive duct; a fan blade sleeved on the rotating shaft and fixedly connected to the rotating shaft; wherein the first stirring plate is drive-connected to the rotating shaft.

[0022] In this technical solution, the wind-driven component includes a fixedly connected rotating shaft and fan blades. By sleeved on the rotating shaft, the fan blades can be affected by the airflow in the driving duct. Under the linkage of the rotating shaft, the first stirring plate is driven to rotate together. That is, the rotation of the rotating shaft drives the first stirring plate to rotate. The rotation of the first stirring plate disturbs the microwave field, realizes the uniform distribution of microwaves, and improves the heating efficiency.

[0023] The transmission connection between the first stirring blade and the rotating shaft can be a direct connection or an indirect connection via a gearbox.

[0024] It is understandable that the rotating shaft and the wall of the drive duct are rotatably connected, which can be achieved through bearings.

[0025] In some technical solutions, the first stirring blade is optionally fixedly connected to the rotating shaft.

[0026] In this technical solution, by restricting the first stirring plate to be fixedly connected to the rotating shaft, there is no relative sliding between the first stirring plate and the rotating shaft, ensuring that the rotation of the wind-driven component can be directly transmitted to the first stirring plate. At the same time, the fixed connection ensures efficient energy transfer from the rotating shaft to the first stirring plate, thereby improving energy transfer efficiency.

[0027] In some technical solutions, optionally, the rotating shaft extends along the direction of gravity, and the thickness of the first stirring blade is no more than 0.2 mm.

[0028] In this technical solution, extending the shaft along the direction of gravity optimizes the rotational dynamics of the first stirring blade, reduces torque variations caused by gravity, and thus improves the stability and uniformity of the first stirring blade's rotation. Furthermore, extending along the direction of gravity reduces the offset or vibration of the first stirring blade during rotation caused by gravity, ensuring that the first stirring blade can more smoothly agitate the microwave field.

[0029] In addition, the ultra-thin first agitator design can significantly reduce the weight of the first agitator. Specifically, the thickness is less than or equal to 0.2 mm. The lightweight first agitator can improve the response speed, reduce the required driving force, and make it easier to be driven by wind-powered components.

[0030] Understandably, the ultra-thin design of the first stirring plate requires the use of high-strength, lightweight materials, such as special plastics, carbon fiber composites, or ultra-light metals.

[0031] Furthermore, the first stirring plate employs a special structural design, such as a honeycomb, porous, or other lightweight structure, to ensure that it achieves lightweight while maintaining sufficient strength.

[0032] In summary, reducing the weight of the first agitator blade reduces the energy required by the wind-driven component, thereby improving the overall system's energy efficiency. The lightweight first agitator blade responds more quickly to the rotation of the wind-driven component, enabling faster microwave field disturbance. The design of the shaft extending along the direction of gravity and the ultra-thin first agitator blade helps reduce vibration and noise generated during rotation, improving the user experience. The lightweight first agitator blade experiences less stress during rotation, contributing to its durability and lifespan. The ultra-thin design of the first agitator blade must ensure its safety during high-speed rotation, avoiding hazards caused by material fatigue or fracture.

[0033] In some technical solutions, optionally, a controller is also included, electrically connected to the air supply unit and the magnetron, the controller being used to control the rotation of the air supply unit and the operation of the magnetron.

[0034] In this technical solution, the addition of a controller significantly enhances the intelligence and automation of the entire system. Specifically, the controller can automatically adjust the speed of the air supply unit and the operating state of the magnetron to adapt to different heating needs and conditions. Through precise control, the controller helps optimize energy efficiency, ensuring that heating requirements are met while reducing unnecessary energy consumption.

[0035] Because of the electrical connection between the controller and the air supply unit, the controller can adjust the speed of the air supply unit according to the heat generated by the magnetron and the operating status of the microwave oven to provide a suitable cooling effect. When the microwave oven does not require high-intensity cooling, the controller can reduce the fan speed and enter energy-saving mode.

[0036] Because of the electrical connection between the controller and the magnetron, the controller can adjust the power supplied to the magnetron, thereby controlling the microwave output power. The controller can set the magnetron's operating time to suit the heating time requirements of different foods. The controller can also set operating time limits to prevent damage to the magnetron due to overheating or prolonged operation.

[0037] Through the design of the controller, the microwave generator assembly can not only provide efficient heating performance, but also achieve intelligent control and safety protection, thereby improving the user experience and the overall performance of the equipment.

[0038] In some technical solutions, optionally, there are multiple first stirring blades; multiple first stirring blades are connected to a wind-driven component; or at least one of the multiple first stirring blades is coaxially connected to the wind-driven component, and the multiple first stirring blades are connected to each other.

[0039] In this technical solution, multiple first stirring blades are employed, and these blades are connected to the wind-driven component in different ways. This design further improves the efficiency and heating uniformity of the wind-driven stirring system. Specifically, multiple first stirring blades can more effectively disturb the microwave field, reduce heating blind spots, and improve the uniformity of food heating. First stirring blades in different positions can work independently or collaboratively according to the heating needs of different areas within the microwave oven. If one first stirring blade malfunctions, the others can continue to operate, improving system reliability.

[0040] At least one of the multiple first stirring blades is coaxially connected to the wind-driven component, i.e., sharing the same shaft. This design simplifies the mechanical structure, reduces the required space, and may improve transmission efficiency.

[0041] Meanwhile, multiple first stirring blades are interconnected via a transmission mechanism (such as gears, chains, or belts). This design allows different first stirring blades to rotate at different speeds or in different modes to accommodate varying heating requirements.

[0042] With this design of multiple first stirring blades, the wind-driven stirring system can more effectively improve the heating performance of the microwave oven, while ensuring system reliability and user experience.

[0043] In some technical solutions, optionally, there are multiple first waveguides, and each first waveguide has at least one wind-driven component in its drive duct.

[0044] In this technical solution, there are multiple first waveguides, and each first waveguide has at least one wind-driven component within its driving air duct. This configuration further improves the uniformity and efficiency of microwave oven heating. Multiple first waveguides can distribute microwave energy more evenly, reduce heating blind spots, and improve the uniformity of food heating. First waveguides in different locations can work independently or collaboratively according to the heating needs of different areas within the microwave oven.

[0045] In some technical solutions, the system may optionally include: a drive motor; a second waveguide connected to the magnetron; and a second stirring blade connected to the drive motor, wherein the second stirring blade rotates with the rotation of the drive motor; wherein the second stirring blade and the first stirring blade are arranged opposite to each other.

[0046] In this technical solution, since the first waveguide and the first stirring blade can form a wind-powered stirring system, another independent stirring system can be set up based on this system. This stirring system includes a drive motor, a second waveguide, and a second stirring blade. The second stirring blade can rotate under the drive of the drive motor, thereby achieving the stirring effect on the microwaves fed into the second waveguide. It can be understood that when the first stirring blade and the second stirring blade are arranged opposite each other, the uniformity of the microwave field in the cooking cavity can be significantly improved, allowing for more uniform heating of food.

[0047] An embodiment of the second aspect of this application provides a cooking device, including: a housing with a cooking cavity inside; and a microwave generating assembly disposed inside the housing, wherein microwaves generated by a magnetron are fed into the cooking cavity via a microwave feed port.

[0048] The cooking apparatus according to this application includes a housing and a microwave generating assembly. The housing is the outer shell of the microwave oven, typically made of metal, used to protect the user from microwave radiation and providing a structure to house the internal components. The cooking cavity, located inside the housing, is the space within the microwave oven used to place food for heating. Microwaves generated by the magnetron in the microwave generating assembly are fed into the cooking cavity, thereby cooking the food.

[0049] Since the cooking equipment includes any of the aforementioned microwave generating components, it has the beneficial effects of any of the aforementioned microwave generating components, which will not be elaborated further here.

[0050] In some technical solutions, optionally, the number of first waveguides of the microwave generating component is multiple, and the multiple first waveguides are disposed on at least two walls of the cooking cavity.

[0051] In this technical solution, multiple first waveguides are positioned at different locations on two or more walls of the cooking cavity. By placing the first waveguides on different walls, microwave energy can be distributed more effectively, preventing some areas from overheating while others are underheated. Multiple first waveguides can send microwaves to different areas of the cooking cavity, helping to reduce hot and cold spots and thus improving heating uniformity. The design of multiple first waveguides provides greater flexibility, allowing the microwave output to be adjusted according to different types of food and cooking needs.

[0052] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0053] Figure 1 A schematic diagram of a microwave generating assembly according to an embodiment of the present invention is shown;

[0054] Figure 2A schematic diagram of a microwave generating assembly according to an embodiment of the present invention is shown;

[0055] Figure 3 A schematic diagram of a microwave generating assembly according to an embodiment of the present invention is shown;

[0056] Figure 4 A schematic diagram of a microwave generating assembly according to an embodiment of the present invention is shown;

[0057] Figure 5 A schematic diagram of the structure of a drive duct according to an embodiment of the present invention is shown;

[0058] Figure 6 A schematic diagram of the structure of a cooking apparatus according to an embodiment of the present invention is shown;

[0059] Figure 7 A schematic diagram of the structure of a cooking apparatus according to an embodiment of the present invention is shown;

[0060] Figure 8 A schematic diagram of a microwave generating assembly according to an embodiment of the present invention is shown.

[0061] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0062] 100: Microwave generator assembly; 102: Magnetron; 104: First waveguide; 1042: Microwave feed port; 1044: Waveguide cavity; 1046: Microwave inlet; 106: Air supply unit; 108: Wind-driven component; 1082: Shaft; 1084: Fan blade; 110: First stirring blade; 112: Drive duct; 1122: Air inlet; 1123: First opening; 1124: Air outlet; 1125: Second opening; 114: Flow guiding structure; 116: Controller; 1182: Drive motor; 1184: Second waveguide; 1186: Second stirring blade;

[0063] 200: Cooking equipment; 202: Cabinet; 2022: Cooking cavity. Detailed Implementation

[0064] To better understand the above-described objectives, features, and advantages of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0065] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0066] The following reference Figures 1 to 8 Some embodiments of the present invention are described.

[0067] like Figure 1 and Figure 8 As shown, the microwave generating component 100 proposed in this embodiment can drive the first stirring plate 110 by means of airflow driven by the air supply unit 106 through the wind-driven component 108. Utilizing the wind-driven stirring mechanism reduces the space occupied by the stirring system and increases the equipment's volumetric efficiency. Specifically, the magnetron 102 is the core component of the microwave oven, responsible for generating high-frequency microwaves. The microwave energy generated by the magnetron 102 can penetrate food, causing water molecules in the food to vibrate and generate heat, thereby heating the food. The air supply unit 106 is positioned corresponding to the magnetron 102, facilitating air cooling of the magnetron 102 during rotation and preventing overheating. Simultaneously, the airflow generated by the air supply unit 106 provides power to the wind-driven component 108, thereby achieving uniform microwave heating. The first waveguide 104 connects the magnetron 102 and the wind-driven component 108, providing a channel for microwave transmission, and also forming a driving air duct 112 inside for airflow to the wind-driven component 108. The wind power is transmitted through the drive duct 112, which drives the wind drive component 108 to rotate, thereby driving the first stirring plate 110 to achieve uniform distribution of microwaves.

[0068] The air supply unit 106 is a device that can provide an air source with pressure higher than atmospheric pressure, including but not limited to fans, blowers, air pumps, air compressors, high-pressure air ducts, etc.

[0069] Among them, the direction of air flow is as follows Figure 4 and Figure 5 As shown.

[0070] It should be emphasized that this solution provides a wind-driven component 108 for rotating the first stirring plate 110, located in the driving air duct 112 within the first waveguide 104. The rotation of the wind-driven component 108 drives the connected first stirring plate 110 to achieve a stirring effect, thereby disturbing the microwaves and improving heating uniformity. The first stirring plate 110, as a microwave antenna, is connected to the wind-driven component 108 and rotates with the rotation of the wind-driven component 108, thus stirring the microwave field and making the microwaves more evenly distributed within the microwave oven cavity, avoiding uneven heating of food.

[0071] It should be added that the microwave feed port 1042 is the opening on the first waveguide 104 facing the first stirrer 110. Microwaves can enter the microwave oven cavity through the microwave feed port 1042 under the action of the first stirrer 110. The design of the microwave feed port 1042 ensures that microwaves can enter the cavity evenly and interact with the first stirrer 110, thereby improving heating efficiency. By utilizing the microwaves generated by the magnetron 102 and the airflow generated by the air supply unit 106, uniform distribution of microwaves within the microwave oven cavity is achieved, thereby improving heating efficiency and quality.

[0072] In some embodiments, optionally, an air inlet 1122 and an air outlet 1124 are provided on the driving air duct 112. Air can flow into the driving air duct 112 through the air inlet 1122, drive the wind-driven component 108 to rotate within the driving air duct 112, and then flow out through the air outlet 1124. It should be emphasized that this solution is designed for microwave scenarios. To reduce microwave leakage through the air inlet 1122 and air outlet 1124, multiple small openings are provided on both air outlets, such as... Figure 2 and Figure 3 As shown, the first opening 1123 and the second opening 1125 are both less than or equal to 5mm, which can effectively block microwaves of 2.45GHz.

[0073] The air inlet 1122 can be located on one side of the waveguide cavity 1044, such as... Figure 1 As shown, or bilaterally, such as Figure 5 As shown.

[0074] It should be added that the opening shape of the first opening 1123 and the second opening 1125 includes, but is not limited to, regular shapes such as round holes, square holes, and rectangular holes, or irregular hole shapes, as long as the size of the opening in any direction is not greater than 5mm.

[0075] It should be added that the first waveguide 104 includes a waveguide cavity 1044, which constitutes the physical space for microwave transmission and the operation of the wind-driven device 108. One end of the waveguide cavity 1044 is provided with a microwave inlet 1046, which is the connection point between the magnetron 102 and the waveguide cavity 1044. Microwaves enter the waveguide cavity 1044 through this inlet and begin their transmission process within the first waveguide 104.

[0076] In addition, the air inlet 1122 and the air outlet 1124 are located on the cavity wall of the waveguide cavity 1044. The air inlet 1122 allows the air force generated by the air supply unit 106 to enter the interior of the waveguide cavity 1044, forming the driving air duct 112. The air outlet 1124 allows the air force to flow out. Under the action of the driving air duct 112, the air force generated by the air supply unit 106 is guided to the wind drive component 108, causing it to rotate. Through the design of the driving air duct 112, the directional flow of air force can be realized, the driving efficiency of the wind drive component 108 can be improved, and the stirring effect of the first stirring plate 110 can be improved, so as to achieve uniform microwave heating.

[0077] It should be added that the waveguide cavity 1044 serves as both a space for propagating microwaves and for providing airflow.

[0078] In some embodiments, optionally, this embodiment employs non-parallel airflow directions, which can guide the airflow to form a specific flow pattern within the drive duct 112. The non-parallel design ensures that the airflow path is not straight, which helps to meet the overall size requirements, i.e., reducing the size in a single direction, resulting in a smaller overall component volume. Furthermore, as... Figure 5 As shown, by setting the flow guiding structure 114, the air flowing into the drive air duct 112 can be guided and flow out through the air outlet 1124 in a predetermined direction and speed.

[0079] In addition, the flow guiding structure 114 can reduce turbulence and eddies in the wind duct, thereby reducing energy loss and improving the efficiency of wind power utilization.

[0080] Furthermore, the air intake direction can be up and down, and the air outlet direction can be front and back or left and right.

[0081] In one specific embodiment, the wind-driven component 108 includes a fixedly connected rotating shaft 1082 and a fan blade 1084. By sleeved on the rotating shaft 1082, the fan blade 1084 can be affected by the airflow in the driving air duct 112. Under the linkage action of the rotating shaft 1082, it drives the first stirring plate 110 to rotate together. That is, the rotation of the rotating shaft 1082 drives the first stirring plate 110 to rotate. The rotation of the first stirring plate 110 disturbs the microwave field, realizes the uniform distribution of microwaves, and improves the heating efficiency.

[0082] The transmission connection between the first stirring blade 110 and the rotating shaft 1082 can be a direct connection or an indirect connection via a gearbox.

[0083] It is understandable that the rotating shaft 1082 and the wall of the drive duct 112 are rotatably connected, which can be achieved through bearings.

[0084] Furthermore, the first stirring plate 110 is fixedly connected to the rotating shaft 1082, so that there is no relative sliding between the first stirring plate 110 and the rotating shaft 1082. This ensures that the rotation of the wind-driven component 108 can be directly transmitted to the first stirring plate 110. At the same time, the fixed connection ensures efficient energy transfer from the rotating shaft 1082 to the first stirring plate 110, thereby improving energy transfer efficiency.

[0085] In another specific embodiment, extending the shaft 1082 along the direction of gravity can optimize the rotational dynamics of the first stirring blade 110, reduce torque changes caused by gravity, and thus improve the stability and uniformity of the rotation of the first stirring blade 110. Furthermore, extending along the direction of gravity can reduce the offset or vibration of the first stirring blade 110 during rotation caused by gravity, ensuring that the first stirring blade 110 can more smoothly agitate the microwave field.

[0086] In addition, the ultra-thin design of the first agitator 110 can significantly reduce the weight of the first agitator 110. Specifically, the thickness is less than or equal to 0.2 mm. The lightweight first agitator 110 can improve the response speed, reduce the required driving force, and make it easier to be driven by the wind-driven component 108.

[0087] It is understandable that the ultra-thin design of the first stirring plate 110 requires the use of high-strength, lightweight materials, such as special plastics, carbon fiber composites, or ultra-light metals.

[0088] Furthermore, the first stirring plate 110 adopts a special structural design, such as a honeycomb, porous or other lightweight structure, to ensure that it achieves lightweight while maintaining sufficient strength.

[0089] In summary, by reducing the weight of the first stirrer 110, the energy required by the wind-driven component 108 can be reduced, thereby improving the overall system energy efficiency. The lightweight first stirrer 110 can respond more quickly to the rotation of the wind-driven component 108, achieving faster microwave field perturbation. The design of the shaft 1082 extending along the direction of gravity and the ultra-thin first stirrer 110 helps reduce vibration and noise generated during the rotation of the first stirrer 110, improving the user experience. The lightweight first stirrer 110 generates less stress during rotation, contributing to its durability and service life. The design of the ultra-thin first stirrer 110 needs to ensure its safety during high-speed rotation, avoiding dangers caused by material fatigue or fracture.

[0090] In one specific embodiment, optionally, such as Figure 4As shown, the addition of controller 116 significantly enhances the intelligence and automation of the entire system. Specifically, controller 116 can automatically adjust the speed of air supply unit 106 and the working state of magnetron 102 to adapt to different heating needs and conditions. Through precise control, controller 116 helps optimize energy efficiency, ensuring that heating needs are met while reducing unnecessary energy consumption.

[0091] Due to the electrical connection between the controller 116 and the air supply unit 106, the controller 116 can adjust the speed of the air supply unit 106 according to the heat generated by the magnetron 102 and the operating status of the microwave oven to provide a suitable cooling effect. When the microwave oven does not require high-intensity cooling, the controller 116 can reduce the fan speed and enter energy-saving mode.

[0092] Due to the electrical connection between the controller 116 and the magnetron 102, the controller 116 can adjust the power supplied to the magnetron 102, thereby controlling the microwave output power. The controller 116 can set the operating time of the magnetron 102 to adapt to the heating time requirements of different foods. The controller 116 can set an operating time limit to prevent damage to the magnetron 102 caused by overheating or prolonged operation.

[0093] Through the design of the controller 116, the microwave generator assembly 100 can not only provide efficient heating performance, but also achieve intelligent control and safety protection, thereby improving the user experience and the overall performance of the equipment.

[0094] In one specific embodiment, optionally, multiple first stirring blades 110 are designed, and these first stirring blades 110 have different connection methods with the fan drive component 108. This design can further improve the efficiency and heating uniformity of the fan-driven stirring system. Specifically, multiple first stirring blades 110 can more effectively disturb the microwave field, reduce heating blind spots, and improve the heating uniformity of food. First stirring blades 110 in different positions can work independently or collaboratively according to the heating needs of different areas within the microwave oven. If one first stirring blade 110 fails, the other first stirring blades 110 can still continue to work, improving the reliability of the system.

[0095] At least one of the plurality of first stirring blades 110 is coaxially connected to the wind-driven component 108, i.e., sharing the same rotating shaft 1082. This design simplifies the mechanical structure, reduces the required space, and may improve transmission efficiency.

[0096] Meanwhile, multiple first stirring blades 110 are interconnected via a transmission mechanism (such as gears, chains, or belts). This design allows different first stirring blades 110 to rotate at different speeds or in different modes to meet different heating requirements.

[0097] With this design of multiple first stirring blades 110, the wind-driven stirring system can more effectively improve the heating performance of the microwave oven, while ensuring the reliability of the system and the user experience.

[0098] In one specific embodiment, optionally, there are multiple first waveguides 104, and each first waveguide 104 has at least one wind-driven component 108 within its driving air duct 112. This configuration can further improve the uniformity and efficiency of microwave oven heating. Multiple first waveguides 104 can distribute microwave energy more evenly, reduce heating blind spots, and improve the uniformity of food heating. First waveguides 104 in different positions can work independently or collaboratively according to the heating needs of different areas within the microwave oven.

[0099] In a specific embodiment, such as Figure 7 As shown, since the first waveguide 104 and the first stirring blade 110 can form a wind-powered stirring system, another independent stirring system can be set up based on this system. This stirring system includes a drive motor 1182, a second waveguide 1184, and a second stirring blade 1186. The second stirring blade 1186 can rotate under the drive of the drive motor 1182, thereby realizing the stirring effect on the microwaves fed into the second waveguide 1184. It can be understood that, as Figure 7 As shown, when the first stirring plate 110 and the second stirring plate 1186 are arranged opposite each other on the upper and lower sides of the cooking cavity, the uniformity of the microwave field in the cavity can be significantly improved, allowing the food to be heated more evenly.

[0100] In one specific embodiment, to address the issue of poor uniformity in flatbed microwave ovens, a top-mounted wind-driven stirring solution is adopted. Traditional microwave oven antennas are fixed, requiring a stirring device to drive the antenna rotation and disperse microwaves for uniform heating. Motor-driven solutions are costly and prone to reliability issues over long-term use. This solution provides a wind-driven fan blade alternative to a motor-driven solution. A row of mesh holes is opened on the side of the first waveguide. When the microwave oven is operating, the fan (i.e., the air supply unit) operates, and excess airflow travels between the outer casing and the waveguide. Five rows of eight columns of 40 mesh holes, each with a diameter of 4mm, are opened on both sides of the waveguide wall. Excess airflow can enter the waveguide cavity through the mesh holes along the air guide shroud. At the other end of the waveguide (short path), two rows of ten columns of 20 mesh holes are also opened, allowing airflow to exit. Inside the waveguide is a plastic fan blade. Under the influence of wind, the small fan blade rotates, thereby rotating the first metal stirring plate inside the cavity, achieving uniform heating. By introducing the airflow energy from the super-system fan cooling component, microwave stirring is achieved, ultimately resulting in uniform heating. Compared to traditional stirring motors, this method reduces the space at the bottom of the cavity and minimizes factors such as poor mechanical reliability and wear. Uniform heating is achieved by agitating the microwaves through wind power. The hot air cooled by the magnetron can be guided into the first stirring blade equipped with additional blades. Of course, several simple blades can also be installed on the shaft of the first stirring blade.

[0101] Furthermore, the first stirring blade is made of very light materials, even foil, but the shape and holes must be identical. Gravity mounting of the stirrer is very effective for its rotation. Additionally, the airflow velocity after the magnetron cools is insufficient to rotate the additional blades, so the air supply unit's velocity and blade size must be increased. This generates a strong airflow that rotates the very light additional blades, thereby driving the very light stirrer. This solution can replace the more expensive borosilicate glass, using a cheaper microwave-transparent material at the top of the microwave cavity. The bottom can even be made of a metal plate. The first waveguide is mounted on the cavity, and the magnetron is mounted on the first waveguide. The inlet of the first waveguide is located on the right side, and the outlet is located in the middle of the cavity. A metal first stirring blade assembly is mounted in the middle of its outlet. The first stirring blade assembly consists of a plastic shaft and a metal blade, with the metal first stirring blade located inside the cavity, and the plastic fan blade portion located inside the first waveguide.

[0102] The first waveguide has mesh openings with a diameter of φ4 on both sides of the input end and the short surface of the output end to facilitate the flow of wind.

[0103] This application provides another embodiment of a cooking device 200, such as... Figure 6As shown, the cooking appliance 200 includes a housing 202 and a microwave generating assembly 100. The housing 202 is the outer shell of the microwave oven, typically made of metal, used to protect the user from microwave radiation and providing a structure to house the internal components. Figure 6 As shown, the cooking cavity 2022 is located inside the enclosure 202 and is the space in the microwave oven used to place food for heating. It is usually made of metal to help reflect and distribute microwaves.

[0104] Among them, cooking equipment 200 includes microwave ovens, microwave ovens, microwave-steam-grill combos, and other similar equipment.

[0105] In some embodiments, optionally, multiple first waveguides 104 are provided at different locations. These multiple first waveguides 104 are disposed on two or more walls of the cooking cavity 2022. By distributing the first waveguides 104 on different walls, microwave energy can be more effectively distributed, preventing some areas from overheating while others are underheated. Multiple first waveguides 104 can send microwaves to different areas of the cooking cavity 2022, helping to reduce hot and cold spots, thereby improving heating uniformity. The design of multiple first waveguides 104 provides greater flexibility, allowing the microwave output to be adjusted according to different types of food and cooking needs.

[0106] In one specific embodiment, a microwave oven is proposed, comprising a housing 202. The housing 202 has a feed port connected to the waveguide port. Two slits (i.e., microwave feed ports 1042) are opened on the feed port surface to ensure that the microwave output and energy efficiency are qualified. A voltage-resistant diode structure is added at the first slit. The diode can be controlled by a computer board signal to turn on and off. When a forward voltage of 3.3V is applied, the diode conducts, which is equivalent to a short circuit in the middle of the first slit. According to the microwave transmission principle, the wavelength of 2.45GHz microwave is 12cm. After the short circuit, the first waveguide port is separated into two small slits with a width of 40mm. According to the waveguide cutoff wavelength theory, the lowest frequency microwave fc ≥ 3.75GHz can pass through the two 40mm small slits. Therefore, after the short circuit, the two slits cannot pass through the 2.45GHz microwave. At this time, the microwave is fed into the cavity from the second slit, thereby achieving the purpose of microwave control.

[0107] By controlling the diode's on / off state through a square wave signal circuit, complementary superposition of microwave field strengths is achieved, ultimately resulting in uniform heating. Compared to traditional stirring motor methods, this reduces the space at the bottom of the cavity and mitigates factors such as poor mechanical structure reliability and wear. Uniform heating is achieved by electrically regulating the microwaves. The first waveguide 104 is mounted on the cavity, and the magnetron 102 is mounted on it. The outlet of the first waveguide 104 is located on the metal surface on the right side of the cavity. The waveguide has two or more microwave outlets. A 2000V high-voltage diode switch is mounted in the middle of one of the outlets. This switch can control the diode's on / off state by different signals from the control circuit. When the diode is on, the metal in the middle of the microwave oven's first outlet is short-circuited, forming a cutoff state, at which point microwave energy can only pass through other outlets. When the diode is off, the first outlet is open, and microwaves can enter the cavity from the first and second outlets. At this time, the electromagnetic field distribution inside the cavity changes. By controlling the on / off state of the diode, the microwave uniformity is adjusted.

[0108] The core parameters are as follows: the first exit width is 67mm≤W≤130mm, there is no requirement for the exit height, but according to the microwave air breakdown voltage technology under normal atmospheric pressure, the exit height must be greater than or equal to 10mm, and the diode must be placed in the middle of the opening gap symmetrically so as to ensure that the 2.45GHz microwave is in the cutoff state when the diode is conducting.

[0109] In addition, a microwave oven can have two or more waveguide vents and can be equipped with multiple diodes to control the microwave field intensity through no-load switching.

[0110] According to the microwave generating assembly provided by the present invention, the output path of the microwave is switched by the adjustment component, thereby changing the electromagnetic field distribution in the microwave oven cavity and achieving a more uniform heating effect.

[0111] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0112] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0113] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0114] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A microwave generating component, characterized in that, include: A magnetron used to generate microwaves; An air supply unit is provided corresponding to the magnetron, and the air supply unit is used to blow air onto the magnetron. At least one first waveguide is connected to the magnetron, and the first waveguide is provided with a drive air duct. A wind-driven component is rotatably disposed within the drive duct, and at least a portion of the air driven by the air supply unit flows into the drive duct to drive the wind-driven component to rotate. The first stirring blade is connected to the wind-driven component and rotates with the rotation of the wind-driven component. The first waveguide is provided with at least one microwave feed port facing the first stirring plate, and the microwaves generated by the magnetron are fed outward through the first waveguide and the first stirring plate.

2. The microwave generating assembly according to claim 1, characterized in that, The drive air duct is provided with an air inlet and an air outlet at both ends, the air inlet is provided with a plurality of first openings, and the air outlet is provided with a plurality of second openings; The maximum size of the first opening is no greater than 5mm, and the maximum size of the second opening is no greater than 5mm.

3. The microwave generating assembly according to claim 2, characterized in that, The first waveguide specifically includes: A waveguide cavity, one end of which is provided with a microwave inlet, through which microwaves emitted by the magnetron enter the waveguide cavity; The air inlet and the air outlet are located on the cavity wall of the waveguide cavity, and the driving air duct is formed inside the waveguide cavity.

4. The microwave generating assembly according to claim 2, characterized in that, The air inlet and outlet directions of the drive duct are not parallel, and the microwave generating component further includes: A flow guide structure is provided inside the drive air duct, through which air flowing into the drive air duct flows out through the air outlet.

5. The microwave generating assembly according to claim 1, characterized in that, The wind-powered drive component specifically includes: The rotating shaft is rotatably disposed within the drive air duct; Fan blades are fitted onto the rotating shaft, and the fan blades are fixedly connected to the rotating shaft; The first stirring blade is connected to the rotating shaft via a transmission.

6. The microwave generating assembly according to claim 5, characterized in that, The first stirring plate is fixedly connected to the rotating shaft.

7. The microwave generating assembly according to claim 5, characterized in that, The rotating shaft extends along the direction of gravity, and the thickness of the first stirring blade is no greater than 0.2 mm.

8. The microwave generating assembly according to claim 1, characterized in that, Also includes: The controller is electrically connected to the air supply unit and the magnetron, and is used to control the rotation of the air supply unit and the operation of the magnetron.

9. The microwave generating assembly according to claim 1, characterized in that, The number of the first stirring blades is multiple; Multiple first stirring blades are drive-connected to one of the wind-driven components; or At least one of the plurality of first stirring blades is coaxially connected to the wind-driven component, and the plurality of first stirring blades are connected by transmission.

10. The microwave generating assembly according to claim 1, characterized in that, The number of the first waveguides is multiple, and each first waveguide has at least one wind-driven component in its drive duct.

11. The microwave generating assembly according to claim 1, characterized in that, Also includes: Drive motor; The second waveguide is connected to the magnetron. The second stirring blade is connected to the drive motor and rotates as the drive motor rotates; The second stirring plate and the first stirring plate are arranged opposite each other.

12. A cooking device, characterized in that, include: The box body, wherein a cooking cavity is provided inside the box body; The microwave generating assembly as described in any one of claims 1 to 11 is disposed within the housing, and the microwaves generated by the magnetron are fed into the cooking cavity via a microwave feed port.

13. The cooking apparatus according to claim 12, characterized in that, The microwave generating assembly has multiple first waveguides, which are disposed on at least two walls of the cooking cavity.

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