Microwave oven

Abstract

The invention belongs to the technical field of microwave ovens, and particularly relates to a microwave oven which comprises a rack, a microwave oven body and a heating device. The microwave heat dissipation support is used for being arranged on the rack; an air inlet and an air outlet are formed in the microwave heat dissipation support, and a heat dissipation air channel communicating with the air inlet and the air outlet is formed in the microwave heat dissipation support. The microwave generator assembly is arranged in the heat dissipation air channel and used for generating microwaves; the waveguide assembly is connected with the microwave generator assembly and used for guiding microwaves; the wave stirring assembly is connected with the waveguide assembly; the wave stirring assembly is used for dispersing the microwaves guided by the waveguide assembly and uniformly feeding the microwaves into an inner container of the microwave oven; and the heat dissipation fan is arranged in the heat dissipation air channel and is responsible for generating air flow to cool the microwave generator assembly. According to the microwave oven, the heat dissipation fan is independently arranged in the microwave oven to independently dissipate heat of the microwave generator assembly in the microwave oven, so that the microwave generator assembly always works in a good temperature state.

Description

Technical Field

[0001] This patent application belongs to the field of microwave oven technology, and particularly relates to a microwave oven. Background Art

[0002] For example, Chinese invention patent 2019111115425 discloses a steamer, oven and microwave oven all-in-one, which includes a waveguide tube and a microwave agitator. A microwave penetrating plate is installed on the inner side of the top plate of the cooking cavity, and a stirring wave cavity is formed between the microwave penetrating plate and the top plate of the cooking cavity. The waveguide tube is arranged on the outside of the stirring wave cavity, and the microwave agitator is arranged inside the stirring wave cavity. The barbecue generating device includes an upper heating tube and an auxiliary heating tube. The upper heating tube is installed on the inner side of the top plate of the cooking cavity and is located below the microwave penetrating plate. The auxiliary heating tube is located outside the cooking cavity and is installed on the top of the stirring wave cavity.

[0003] This patented invention suffers from the following flaws: Since the patented microwave oven integrates a microwave generator, a heating tube, and an auxiliary heating tube, when the heating tube and the auxiliary heating tube operate simultaneously, the heat generated by them is transferred to the microwave generator, potentially causing it to overheat and damage, thereby shortening its service life. Furthermore, the heat generated by heating food is transferred to the microwave generator, further causing it to heat up, thus affecting its use. Summary of the Invention

[0004] The purpose of this patent application is to provide a microwave system that effectively increases the service life of products.

[0005] The purpose of this patent application is achieved as follows:

[0006] A microwave oven, comprising:

[0007] A rack is provided with an inner container on the rack; a baking system for heating the food in the inner container is provided in the inner container, and the baking system includes a rack heat dissipation fan provided in the rack;

[0008] The microwave heat dissipation bracket is used to be arranged on the rack; the microwave heat dissipation bracket is provided with an air inlet and an air outlet, and a heat dissipation duct connecting the air inlet and the air outlet is formed inside the microwave heat dissipation bracket;

[0009] A microwave generator assembly is provided in the heat dissipation duct and is used to generate microwaves;

[0010] a waveguide assembly connected to the microwave generator assembly and used for guiding microwaves;

[0011] The wave stirring assembly is connected to the waveguide assembly; the wave stirring assembly is used to disperse the microwaves guided from the waveguide assembly and evenly send them into the inner pot of the microwave oven;

[0012] The heat dissipation fan is arranged in the heat dissipation air duct and is responsible for generating airflow to cool the microwave generator assembly.

[0013] Furthermore, the microwave heat dissipation bracket includes:

[0014] A heat dissipation bracket base, which is used to be set on the microwave oven;

[0015] The heat dissipation support upper cover is fixed on the heat dissipation support base; the heat dissipation air duct is formed between the heat dissipation support base and the heat dissipation support upper cover.

[0016] Furthermore, the microwave generator assembly includes a frequency converter and a magnetron connected to each other, the heat dissipation bracket upper cover includes a first upper cover portion and a second upper cover portion, and the frequency converter is installed in the first upper cover portion;

[0017] The magnetron includes a mounting shell and a magnetron assembly arranged in the mounting shell. Open windows are provided on both sides of the mounting shell. The second upper cover is buckled on the part of the mounting shell with the open windows and is connected to the heat dissipation bracket base.

[0018] Furthermore, the waveguide assembly includes:

[0019] a waveguide box connected to the microwave generator assembly; a first inclined waveguide channel and a second horizontal waveguide channel are sequentially formed in the waveguide box; and

[0020] The tuning rod is made of metal and is fixed in the second waveguide channel.

[0021] Furthermore, the first waveguide channel is also provided with a waveguide yielding groove opposite to the microwave generating direction of the microwave generator assembly.

[0022] Furthermore, the waveguide box is provided with a stirring opening, and the stirring component includes:

[0023] A stirring wave driving member fixed on the waveguide box;

[0024] a stirring rod, which is inserted into the stirring opening and is driven to rotate by the stirring driving member; and

[0025] The stirring plate is connected to the stirring rod and is located outside the stirring opening; the stirring plate is driven to rotate by the stirring rod.

[0026] Furthermore, the stirring drive component includes a stirring motor, which drives a first stirring drive plate through the rotation of the stirring motor; one end of the stirring rod is provided with a second stirring drive plate that intersects with the first stirring drive plate, which is used to drive the stirring rod to rotate by the first stirring drive plate and the second stirring drive plate being counteracted.

[0027] Furthermore, the second stirring drive piece includes a torsion spring, which is sleeved on the stirring rod. One end of the torsion spring is connected to the stirring rod, and the other end extends outward to intersect with the first stirring drive piece.

[0028] Furthermore, the stirring rod includes:

[0029] a rotating rod portion, the rotation of which is arranged in the waveguide box; and

[0030] An extension sleeve is sleeved on one end of the rotating rod and connected to the stirring plate at the other end; a plurality of sliding positioning holes are provided on the extension sleeve and the rotating rod, which are used to fix the rotating rod and the extension sleeve by passing sliding positioning rods through the sliding positioning holes.

[0031] Furthermore, the stirring wave assembly also includes a glass sealing plate for fixing on the microwave oven inner pot, the glass sealing plate is provided with a glass fixing ring for connecting with the microwave oven inner pot, and a glass sealing member is provided between the glass fixing ring and the microwave oven inner pot.

[0032] Compared with the prior art, the outstanding and beneficial technical effects of this patent application are:

[0033] This patent independently dissipates heat from the microwave generator assembly in the microwave oven by independently setting up a heat dissipation fan in the microwave oven, so that the microwave generator assembly is always in a good temperature state for operation.

[0034] In the microwave oven of this patent, the anode on the magnetron is directly connected to the heat dissipation duct, and the heat is directly dissipated by the heat dissipation fan, which further increases the heat dissipation effect of the heat dissipation fan on the magnetron. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of a microwave oven.

[0036] Figure 2 This is a diagram of the inner and outer chambers of a microwave oven.

[0037] Figure 3 This is a schematic diagram of the microwave system installation.

[0038] Figure 4 This is a schematic diagram of the connection between the microwave system and the inner tank.

[0039] Figure 5 yes Figure 4 Schematic cross-section of the waveguide assembly.

[0040] Figure 6 This is a disassembled schematic diagram of the microwave heat dissipation bracket.

[0041] Figure 7 This is a schematic diagram of the disassembly of the waveguide box.

[0042] Figure 8 It is a schematic diagram of the inner structure of the waveguide box.

[0043] Figure 9 This is a schematic diagram of the disassembly of the heat sink bracket base and the heat sink bracket cover.

[0044] Figure 10 It is a structural diagram of the stirring wave component.

[0045] Figure 11 It is a cross-sectional schematic diagram of the stirring wave component.

[0046] The meaning of the numbers in the figure:

[0047] 2. Frame; 21. Inner chamber; 211. Stirring channel; 22. Outer chamber;

[0048] 3. Microwave heat sink bracket; 31. Air inlet; 32. Air outlet; 33. Heat dissipation duct; 34. Heat dissipation fan; 35. Heat sink bracket base; 36. Heat sink bracket upper cover; 361. First upper cover portion; 362. Second upper cover portion;

[0049] 4. Microwave generator assembly; 41. Frequency converter; 42. Magnetron; 421. Mounting housing; 422. Magnetron assembly; 424. Opening window; 425. Antenna;

[0050] 5. Waveguide assembly; 51. Waveguide box; 511. First waveguide channel; 512. Second waveguide channel; 513. Tuning rod; 514. Waveguide groove; 515. Wave stirring opening;

[0051] 6. Stirring assembly; 61. Stirring drive element; 611. Stirring motor; 612. First stirring drive plate; 613. Second stirring drive plate; 62. Stirring rod; 621. Rotating rod; 622. Extension sleeve; 623. Sliding positioning hole; 624. Sliding positioning rod; 63. Stirring plate; 631. Stirring convex portion; 64. Glass sealing plate; 641. Glass fixing ring; 642. Glass sealing element;

[0052] 7. Steam heating system;

[0053] 8. Microwave system;

[0054] 9. Baking system; 91. Rack cooling fan; DETAILED DESCRIPTION

[0055] The present patent application is further described below in conjunction with specific embodiments:

[0056] A microwave oven, the microwave oven described in this patent is a microwave oven that combines Figure 1 、 2As shown, the microwave oven includes a frame 2, in which an inner pot 21 and an outer pot 22 are arranged. One side of the inner pot 21 is open and a door is provided on it for closing the inner pot 21. The inner pot 21 is used to place food to be heated, and the outer portion of the inner pot 21 is used to install components for heating. The outer pot 22 is located on the upper side of the inner pot 21 and is fixedly connected to the frame 2 of the microwave oven. Since the microwave oven in this patent is a microwave oven, a steam heating system 7 for generating steam, a baking system 9 for raising the temperature, and a microwave system 8 are provided outside the inner pot 21 of the microwave oven. The steam heating system 7, baking system 9, and microwave system 8 are generally arranged on the outer pot 22 or the frame 2.

[0057] Specifically, the microwave system 8 includes a microwave heat dissipation bracket 3, a microwave generator component 4, a waveguide component 5, a stirring component 6 and a heat dissipation fan 34. Figure 3 、 4 As shown, the entire microwave system 8 in this patent is installed on one side of the outer pot 22. The baking system 9 includes a heating tube arranged in the inner pot and a rack cooling fan 91 located in the center of the outer pot 22. The rack cooling fan 91 works to generate airflow to dissipate heat from the outer pot 22 and the inner pot 21 in the rack 2, thereby preventing the electrical components outside the inner pot 21 from being at a high operating temperature. The microwave heat dissipation bracket 3 is installed on one side of the rack cooling fan 91. The microwave heat dissipation bracket 3 in this patent includes a heat dissipation bracket base 35 and a heat dissipation bracket upper cover 36. The heat dissipation bracket base 35 is used to be fixed to the outer pot 22 of the microwave oven. The heat dissipation bracket upper cover 36 is fixed to the heat dissipation bracket base 35. The heat dissipation air duct 33 is formed between the heat dissipation bracket base 35 and the heat dissipation bracket upper cover 36.

[0058] Combine Figure 3 、 4 As shown in Figures 6 and 7, the heat dissipation bracket base 35 in the present patent is provided with a plurality of connection pairs on the outer edge thereof, and connection through holes are opened on the connection pairs, which are fixed to the outer tank 22 by setting screws in the connection through holes. The heat dissipation bracket base 35 is in the shape of an elongated strip as a whole, and its outer edge has a vertical annular edge, and an installation space is formed in the annular edge. The heat dissipation fan 34 and the microwave generator assembly 4 are installed in the installation space in the heat dissipation bracket base 35. After the heat dissipation bracket upper cover 36 is installed on the heat dissipation fan 34, the heat dissipation fan 34 and the microwave generator assembly 4 located in the heat dissipation bracket base 35 are closed by the heat dissipation bracket upper cover 36 to form a heat dissipation air duct 33.

[0059] Specifically, the microwave generator assembly 4 in this patent includes a frequency converter 41 and a magnetron 42 connected to each other. The frequency converter 41 and the magnetron 42 are arranged in sequence along the front and back of the microwave heat dissipation bracket 3. The magnetron 42 specifically includes a mounting shell 421, a magnetron assembly 422 arranged in the mounting shell 421, and an antenna 425 located at one end of the mounting shell 421. The magnetron assembly 422 located in the mounting shell 421 is supported by the mounting shell 421. When working, the magnetron assembly 422 generates microwaves and emits them outward through the antenna 425. The frequency converter 41 is used to control the operating frequency of the magnetron 42 to obtain microwaves of a specified frequency. The magnetron assembly 422 generally includes a cathode, an anode and a permanent magnet arranged in an installation shell. The cathode is used to heat to generate electrons, and make the electrons rotate between the anode and the permanent magnet to generate microwaves; the antenna 425 is connected to one side of the installation shell 421 and is connected to the magnetron assembly 422 inside the installation shell 421. The microwaves generated between the cathode, anode and permanent magnet will be emitted outward from the antenna 425.

[0060] Correspondingly, the heat dissipation bracket upper cover 36 includes a first upper cover portion 361 and a second upper cover portion 362; the first upper cover portion 361 is located in the front half of the heat dissipation bracket base 35, and its shape is adapted to the shape of the front half of the heat dissipation bracket base 35. Corresponding connecting columns are provided on the first upper cover portion 361 and the front half of the heat dissipation bracket base 35, and the connection is achieved by arranging fasteners in the connecting columns; the inverter 41 is installed in the front half of the heat dissipation bracket base 35 and is enclosed by the first upper cover portion 361.

[0061] The second upper cover portion 362 is located on the rear half of the heat dissipation bracket base 35; the magnetron 42 in this patent has a larger transverse volume, and the magnetron 42 itself has a mounting shell 421, such as Figure 6 、 9As shown, the cathode and anode in the magnetron assembly 422 are arranged in the mounting shell 421 in sequence, and the middle two sides of the mounting shell 421 are provided with connected open windows 424. In this patent, the extension direction of the open window 424 toward the heat dissipation duct 33 is opposite, and the cathode and anode are connected to the heat dissipation duct 33 through the open window 424; at this time, the second upper cover part 362 will be buckled on the part of the magnetron 42 shell provided with the open window 424, and the edge of the second upper cover part 362 will fit with the outer wall of the mounting shell 421, that is, the edge of the second upper cover part 362 will fit with part of the mounting shell 421 and be connected by fasteners. At this time, the open window 424 of the mounting shell 421 is opposite to the heat dissipation duct 33, which can facilitate the operation of the heat dissipation fan 34 in the heat dissipation duct 33 to dissipate heat from the anode. Moreover, this layout makes good use of the mounting shell 421 of the magnetron 42 itself, so that the mounting shell 421 and the microwave heat dissipation bracket 3 are connected as a whole, effectively saving the installation space on the outer tank 22 and making the overall layout more scientific.

[0062] The outer end of the second upper cover 362 is slightly arched, which is connected to the upper side of the outer container and cooperates with the outer container 22 to form an air outlet 32 ​​of a heat dissipation duct 33, and the air outlet 32 ​​is connected to the front side of the frame 2 of the microwave oven. Figure 6 、 7 As shown in Figures 9 and 9 , the heat dissipation fan 34 is arranged at the front half of the heat dissipation bracket base 35 and is located in front of the microwave generator assembly 4. The heat dissipation fan 34 is specifically an impeller fan, which is fixed to the heat dissipation bracket base 35 by fasteners. Accordingly, the air inlet 31 is arranged at the top of the microwave heat dissipation bracket 3, that is, located on the first upper cover portion 361.

[0063] When the heat dissipation fan 34 is operating, it draws air through the air inlet 31. The airflow then passes through the inverter 41 and the magnetron 42, and is discharged outward through the air outlet 32. The airflow also passes through the anode of the magnetron 42 to dissipate heat. Because the microwave oven in this patent is a microwave-steam-and-bake all-in-one, the baking system 9 in the microwave oven also generates relatively high temperatures when in operation, affecting the temperature rise of the microwave generator assembly 4 in the microwave system 8. This causes the microwave generator assembly 4 to be unable to maintain a good operating temperature and can only dissipate heat through the rack heat dissipation fan 91 located on one side of the microwave system 8. This patent, however, independently provides a heat dissipation fan 34 in the microwave system 8 to independently dissipate heat for the microwave generator assembly 4 in the microwave system 8, ensuring that the microwave generator assembly 4 always maintains a good operating temperature. In addition, in the microwave system 8 of this patent, the magnetron assembly 422 on the magnetron 42 is directly connected to the heat dissipation duct 33 through the open window 424, and is directly cooled by the heat dissipation fan 34, further increasing the heat dissipation effect of the heat dissipation fan 34 on the magnetron 42.

[0064] Furthermore, the waveguide assembly 5 includes a waveguide box 51 and a tuning rod 513. The waveguide assembly 5 is connected to the outside of the antenna 425 of the magnetron 42. The waveguide box 51 is formed by welding two upper and lower panels formed by stretching. The upper and lower panels are stretched in advance to form the outer contour of the waveguide box 51 after welding. Figure 5 、 7 As shown in Figures 8 and 9, an inclined first waveguide channel 511 and a horizontal second waveguide channel 512 are sequentially formed. The first waveguide channel 511 is connected to the antenna 425. The microwaves emitted by the microwave generator assembly 4 first enter the first waveguide channel 511 and then enter the second waveguide channel 512. The purpose of providing the inclined first waveguide channel 511 is that the microwave generator assembly 4 generally has a certain height, and the waveguide box 51 generally fits on the outer liner 22. Therefore, the inclined first waveguide channel 511 is provided to compensate for the height difference between the microwave generator assembly 4 and the second waveguide channel 512, thereby eliminating the need to adjust the structure of the microwave generator assembly 4 and reducing manufacturing difficulty.

[0065] Furthermore, the first waveguide channel 511 is further provided with a waveguide clearance groove 514 opposite to the microwave generating direction of the microwave generator assembly 4. Figure 8 As shown, the waveguide clearance groove 514 is formed on the upper side panel of the waveguide box 51 and is specifically a right-angle structure. The main purpose of providing the waveguide clearance groove 514 is to prevent the outer wall of the waveguide box 51 from being too close to the antenna 425, thereby preventing the two from being too close and interfering with the normal transmission of microwaves.

[0066] Furthermore, the tuning rod 513 is fixed in the second waveguide channel 512, combined with Figure 7 、 8 As shown, the tuning rod 513 is a metal part, which is fixed to the upper side panel of the waveguide box 51 by welding or fasteners when leaving the factory. Its function is to increase the reflection of microwaves in the waveguide box 51 to make the transmission of microwaves more uniform.

[0067] Furthermore, the waveguide box 51 is provided with a stirring opening 515. Accordingly, the stirring assembly 6 includes a stirring driving member 61, a stirring rod 62 and a stirring plate 63. Figure 5-8 As shown, the stirring opening 515 is a circular opening opened in the second waveguide channel 512; the stirring rod 62 is rotatably arranged in the upper panel of the waveguide box 51 through a bearing member, and the lower end of the stirring rod 62 is inserted into the stirring opening 515, and the stirring drive member 61 includes a stirring motor 611, which is driven by the stirring motor 611 to rotate a first stirring drive piece 612; one end of the stirring rod 62 is provided with a second stirring drive piece 613 intersecting with the first stirring drive piece 612, which is used to drive the stirring rod 62 to rotate by the first stirring drive piece 612 and the second stirring drive piece 613. The stirring piece 63 is connected to the stirring rod 62 and is located outside the stirring opening 515. The stirring piece 63 is driven to rotate by the stirring rod 62.

[0068] Specific reference Figure 5 、 6 As shown, a stirring bracket is provided outside the waveguide box 51, and the stirring motor 611 is provided on the stirring bracket. A vertically arranged first stirring drive piece 612 is provided on the motor shaft of the stirring motor 611. A horizontally arranged second stirring drive piece 613 is provided on the end of the stirring rod 62 exposed outside the waveguide box 51. The second stirring drive piece 613 includes a torsion spring, which is sleeved on the end of the stirring rod 62 exposed outside the waveguide box 51. One end of the torsion spring is connected to the stirring rod 62 by plugging, and the other end extends outward to intersect with the first stirring drive piece 612. At this time, the stirring motor 611 rotates to drive the first stirring drive piece 612 to rotate, and the first stirring drive piece 612 drives the second stirring drive piece 613 to rotate, thereby rotating the stirring rod 62, and the stirring rod 62 drives the stirring piece 63 located outside the stirring opening 515 to rotate.

[0069] The stir plate 63 is specifically a fan-shaped plate. In practice, the stir plate 63 is located between the outer liner 22 and the inner liner 21. A stir channel 211 is defined between the outer liner 22 and the inner liner 21 outside the stir plate 63. Specifically, the top of the inner liner 21 arches upward and connects to the outer liner 22, forming a stir channel 211 with a trapezoidal cross-section. This allows the stir opening 515 on the waveguide box 51 to directly connect to the stir channel 211. A glass seal 64 is placed on the inner liner 21 at the end of the stir channel 211, sealing the stir channel 211. The stirring plate 63 is used to be placed in the stirring channel 211. When microwaves are emitted by the microwave generator assembly 4, the microwaves pass through the waveguide box 51 and are sent out through the stirring opening 515 on the waveguide box 51 to contact the stirring plate 63 located in the stirring channel 211, and are finally sent into the inner pot 21. The microwaves will be reflected back and forth in the closed waveguide box 51, the stirring channel 211 and the inner pot, and will eventually be "stuck" at certain fixed positions to form standing waves, resulting in uneven energy distribution. The metal stirring plate 63 will continue to reflect microwaves when rotating. Each reflection changes the electromagnetic boundary conditions of the closed cavity, forcing the originally fixed standing wave mode to be unable to exist stably and must be continuously reorganized into new standing wave modes, generating more modes of field waves, thereby dispersing the hot spots originally in the closed cavity, i.e., the inner pot 21, to different positions, and repeatedly irradiating the cold spots, ultimately making the microwave energy distribution in the entire inner pot 21 more uniform and heating the food more uniformly.

[0070] This patent realizes the driving of the stirring rod 62 by the stirring motor 611 through the first stirring drive piece 612 and the second stirring drive piece 613. Its advantage is that it allows installation errors between the stirring motor 611 and the stirring rod 62, reducing the installation difficulty of both. At the same time, by setting the second stirring drive piece 613 as a torsion spring, the contact between the first stirring drive piece 612 and the second stirring drive piece 613 is smoother, so that the stirring rod 62 can rotate better.

[0071] Furthermore, the stirring plate 63 is fan-shaped, and a protruding stirring protrusion 631 is provided on both sides of the fan-shaped edge. Figure 10 、 11 As shown, one end of the stirring plate 63 is fixed to the bottom of the stirring rod 62 by a fastener. The stirring plate 63 is directly manufactured into a fan shape by stamping, and a raised stirring protrusion 631 is formed. The stirring protrusion 631 can better stir the waves when rotating, so as to make the microwave energy distribution in the inner pot 21 more uniform.

[0072] Further, if Figure 11As shown, the stirring rod 62 includes a rotating rod portion 621 and an extension sleeve 622. The rotating rod portion 621 is rotatably arranged in the waveguide box 51 through a bearing; the extension sleeve 622 is sleeved on one end of the rotating rod portion 621; the extension sleeve 622 and the rotating rod are provided with a plurality of sliding positioning holes 623, which are used to fix the rotating rod portion 621 and the extension sleeve 622 by passing sliding positioning rods 624 through the sliding positioning holes 623. The sliding positioning holes 623 and the sliding positioning rods 624 on them can change the axial connection position between the rotating rod portion 621 and the extension sleeve 622, thereby changing the overall length of the stirring rod 62 formed by the connection between the rotating rod portion 621 and the extension sleeve 622, thereby changing the position height of the stirring plate 63, and thus changing the reflection effect of the stirring plate 63 on microwaves to adapt to different microwave oven structures.

[0073] Further, if Figure 5 As shown, the glass sealing plate 64 is provided with a glass fixing ring 641 for connecting with the microwave oven inner pot 21, and a glass sealing member 642 is provided between the glass fixing ring 641 and the microwave oven inner pot 21. Figure 5 As shown, the glass fixing ring 641 is fixed to the inner side of the inner pot 21 and is connected and fixed to the microwave inner pot 21 by fasteners. At this time, a clamping groove for placing the glass sealing plate 64 is formed between the microwave inner pot 21 and the glass fixing ring 641. The clamping groove is used to clamp the edge of the glass sealing plate 64 to achieve the fixation of the glass sealing plate 64. The glass sealing member 642 is provided at the bottom of the clamping groove to seal the gap between the glass sealing plate 64, the glass fixing ring 641 and the inner pot 21, thereby preventing water vapor in the inner pot 21 from leaking into the stirring assembly 6 and affecting the normal operation of the stirring assembly 6. The glass sealing member 642 can be made of silicone or rubber.

[0074] In some embodiments, the stirring component 6 may not be provided, and a turntable structure may be provided in the microwave oven to drive the food in the microwave oven to rotate, which can also allow the food to be evenly exposed to microwaves for heating.

[0075] The above embodiments are only preferred embodiments of the present patent application and are not intended to limit the scope of protection of the present patent application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present patent application should be included in the scope of protection of the present patent application.

[0076] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this patent application. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size, without affecting the efficacy and purpose that can be achieved by this patent application, should still fall within the scope of the technical content disclosed in this patent application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this patent application. Changes or adjustments in their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of this patent application.

[0077] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0078] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A microwave oven, characterized in that: include: A rack (1), wherein an inner container (21) is provided on the rack (1), and a baking system (9) for heating food in the inner container (21) is provided in the inner container (21), and the baking system (9) includes a rack heat dissipation fan (91) provided in the rack (1); A microwave heat dissipation bracket (3) is used to be arranged on the frame (1); an air inlet (31) and an air outlet (32) are provided on the microwave heat dissipation bracket (3); a heat dissipation duct (33) communicating with the air inlet (31) and the air outlet (32) is formed inside the microwave heat dissipation bracket (3); A microwave generator assembly (4) is arranged in the heat dissipation duct (33) and is used to generate microwaves; a waveguide assembly (5), connected to the microwave generator assembly (4) and used for guiding microwaves; A wave stirring component (6) is connected to the waveguide component (5); the wave stirring component (6) is used to disperse the microwaves guided from the waveguide component (5) and evenly send them into the inner pot (21) of the microwave oven; The heat dissipation fan (34) is arranged in the heat dissipation air duct (33) and is responsible for generating airflow to cool the microwave generator assembly (4).

2. A microwave oven according to claim 1, characterized in that The microwave heat dissipation bracket (3) comprises: A heat dissipation support base (35) is used for being arranged on a microwave oven; The heat dissipation bracket upper cover (36) is fixed on the heat dissipation bracket base (35); the heat dissipation air duct (33) is formed between the heat dissipation bracket base (35) and the heat dissipation bracket upper cover (36).

3. A microwave oven according to claim 2, characterized in that: The microwave generator assembly (4) includes a frequency converter (41) and a magnetron (42) connected to each other, the heat dissipation bracket upper cover (36) includes a first upper cover portion (361) and a second upper cover portion (362), and the frequency converter (41) is installed in the first upper cover portion (361); The magnetron (42) comprises a mounting shell (421) and a magnetron assembly (422) arranged in the mounting shell (421). Both sides of the mounting shell (421) are provided with communicating open windows (424). The second upper cover (362) is buckled onto the portion of the mounting shell (421) provided with the open windows (424) and is connected to the heat dissipation bracket base (35).

4. A microwave oven according to claim 1, characterized in that: The waveguide assembly (5) comprises: A waveguide box (51) connected to the microwave generator assembly (4); a first inclined waveguide channel (511) and a second horizontal waveguide channel (512) are sequentially formed in the waveguide box (51); and The tuning rod (513) is made of metal and is fixed in the second waveguide channel (512).

5. A microwave oven according to claim 4, characterized in that: The first waveguide channel (511) is also provided with a waveguide clearance groove (514) opposite to the microwave generation direction of the microwave generator assembly (4).

6. A microwave oven according to claim 4, characterized in that: The waveguide box (51) is provided with a stirring opening (515), and the stirring component (6) comprises: A stirring wave driving member (61) fixed on the waveguide box (51); A stirring rod (62) is inserted into the stirring opening (515) and is driven to rotate by the stirring driving member (61); and The stirring plate (63) is connected to the stirring rod (62) and is located outside the stirring opening (515); the stirring plate (63) is driven to rotate by the stirring rod (62).

7. A microwave oven according to claim 6, characterized in that: The stirring drive member (61) comprises a stirring motor (611), which is driven by the stirring motor (611) to rotate a first stirring drive piece (612); one end of the stirring rod (62) is provided with a second stirring drive piece (613) intersecting with the first stirring drive piece (612), which is used to drive the stirring rod (62) to rotate by the first stirring drive piece (612) and the second stirring drive piece (613) abutting against each other.

8. The microwave oven according to claim 6, wherein: The second stirring drive plate (613) includes a torsion spring, which is sleeved on the stirring rod (62), one end of the torsion spring is connected to the stirring rod (62), and the other end extends outward to intersect with the first stirring drive plate (612).

9. The microwave oven according to claim 6, wherein: The stirring rod (62) comprises: a rotating rod (621) rotatably disposed in the waveguide box (51); and An extension sleeve (622) is sleeved on one end of the rotating rod (621), and the other end is connected to the stirring plate (63); a plurality of sliding positioning holes (623) are provided on the extension sleeve (622) and the rotating rod, and are used to fix the rotating rod (621) and the extension sleeve (622) by passing sliding positioning rods (624) through the sliding positioning holes (623).

10. The microwave oven according to claim 6, wherein: The stirring wave assembly (6) further comprises a glass sealing plate (64) for fixing on the microwave oven inner container (21); a glass fixing ring (641) for connecting to the microwave oven inner container (21) is provided on the glass sealing plate (64); and a glass sealing member (642) is provided between the glass fixing ring (641) and the microwave oven inner container (21).

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