Microwave oven with double frequency conversion electronic transformers

Abstract

The invention discloses a microwave oven with double frequency conversion electronic transformers, and relates to the field of microwave ovens, the microwave oven comprises a microwave main body, the side surface of the microwave main body is provided with a folding isolation structure, the folding isolation structure comprises a plurality of fixing blocks and a plurality of rotating rods, the side surface of the microwave main body is provided with an isolation groove, and the interior of the isolation groove is rotatably connected with a rotating plate; a low-frequency control mounting plate and a high-frequency drive mounting plate are sequentially arranged on one side of the rotating plate; a plurality of fixing blocks are fixedly connected to the upper right corner and the lower left corner of one side of the rotating plate, the upper left corner and the lower right corner of the other side of the low-frequency control mounting plate, the upper right corner and the lower left corner of one side of the low-frequency control mounting plate and the upper left corner and the lower right corner of one side of the high-frequency driving mounting plate respectively; the rotating rods are rotationally connected with the two adjacent fixing blocks located on the same plane. Through the design of the folding isolation structure, the microwave oven realizes efficient space utilization and convenient installation of the electronic transformer mainboard.

Description

Technical Field

[0001] The present invention relates to the field of microwave ovens, in particular to a microwave oven with a dual-frequency electronic transformer. Background Art

[0002] Microwave ovens with dual-frequency electronic transformers utilize advanced power regulation technology, achieving more precise heating and higher energy efficiency through coordinated high- and low-frequency control. The core of this technology lies in the electronic transformer's intelligent frequency conversion system, which automatically adjusts the output power waveform according to the specific ingredients, achieving rapid heating while avoiding localized overheating. This makes it particularly suitable for delicate cooking needs such as defrosting and stewing. Compared to the fixed power output of traditional microwave ovens, the dual-frequency design ensures a more uniform and stable heating process while reducing energy waste.

[0003] Traditional microwave ovens with dual-frequency electronic transformers often use a discrete layout for their frequency conversion control systems, which causes electromagnetic crosstalk between the low-frequency control motherboard and the high-frequency drive motherboard in a limited space, affecting system stability. The installation structure is mostly a fixed design, and maintenance requires the entire casing to be disassembled, increasing the complexity of repair. The motherboard positioning relies on manual alignment of the mounting holes, which poses a risk of assembly error. Summary of the Invention

[0004] The main purpose of the present invention is to provide a microwave oven with a dual-frequency electronic transformer, which can achieve efficient space utilization and convenient installation of the electronic transformer mainboard.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A microwave oven with a dual-frequency electronic transformer comprises a microwave main body, a folding isolation structure is provided on the side of the microwave main body, the folding isolation structure comprises a plurality of fixed blocks and a plurality of rotating rods, an isolation slot is provided on the side of the microwave main body, a rotating plate is rotatably connected inside the isolation slot, a low-frequency control mounting plate and a high-frequency drive mounting plate are sequentially provided on one side of the rotating plate, a plurality of fixed blocks are respectively fixedly connected to one side of the rotating plate near the upper right corner and the lower left corner, the other side of the low-frequency control mounting plate near the upper left corner and the lower right corner, one side of the low-frequency control mounting plate near the upper right corner and the lower left corner, and one side of the high-frequency drive mounting plate near the upper left corner and the lower right corner, and the rotating rod is rotatably connected to two adjacent fixed blocks located in the same plane.

[0007] As a further solution of the present invention, the front and rear parts of the rotating plate, low-frequency control mounting plate and high-frequency drive mounting plate are all arranged in arc shape, and a baffle is provided on the other side of the high-frequency drive mounting plate, which is adaptively matched with the isolation slot.

[0008] As a further solution of the present invention, slider one is slidably connected to the upper left corner and lower right corner of the other side of the high-frequency drive mounting plate and the upper right corner and lower left corner of one side of the baffle, and slider two is slidably connected to the upper right corner and lower left corner of the other side of the high-frequency drive mounting plate and the upper left corner and lower right corner of the baffle, a lower fork rod is rotatably connected between two adjacent sliders one located in the same plane, an upper fork rod is rotatably connected between two adjacent sliders two located in the same plane, and an inserted shaft is connected through the centers of adjacent lower fork rods and upper fork rods.

[0009] As a further solution of the present invention, a positioning structure is provided on the other side of the low-frequency control mounting plate and one side of the high-frequency drive mounting plate. The positioning structure includes two positioning plates, and the other side of the low-frequency control mounting plate is symmetrically fixedly connected to two fixing plates. The two positioning plates are fixedly connected to the opposite sides with three sliding rods one, one end of the sliding rod one passes through the outer side of the fixing plate, and a spring one is fixedly connected between the fixing plate and the positioning plate and on the outer surface of the sliding rod one. The two positioning plates are symmetrically fixedly connected to two connecting blocks close to each other, two positioning blocks are provided between two adjacent connecting blocks, and a spring two is fixedly connected between the positioning block and the connecting block and on the outer surface of the sliding rod two. Four connecting holes are opened on one side of the low-frequency control mounting plate through the other side.

[0010] As a further solution of the present invention, the adjacent sides of the two positioning plates are fixedly connected with a first pressing block, and the adjacent surfaces of a pair of upper and lower adjacent positioning blocks are fixedly connected with a second pressing block.

[0011] As a further solution of the present invention, the two pressing blocks 1 are in a left-right symmetrical relationship, and the two pressing blocks 2 are in a top-bottom symmetrical relationship, and the side surfaces of the pressing blocks 1 and 2 are both inclined.

[0012] As a further solution of the present invention, one end of the sliding rod one is fixedly connected to the side of the fixed plate with an anti-slip block one, and the top of the sliding rod two is fixedly connected to the top of the connecting block with an anti-slip block two.

[0013] As a further solution of the present invention, the front and back surfaces of the baffle are both symmetrically provided with two placement grooves, the inside of which are provided with plug-in blocks, and the inside of the isolation groove is both symmetrically provided with two slots near the front and back.

[0014] As a further solution of the present invention, rotation grooves are provided inside the baffle and at the top and bottom of the placement groove, rotation blocks are fixedly connected to the top and bottom of the insertion block, a connecting groove connected to the placement groove is provided on the side of the baffle, and a shift rod is connected between the sides of the two adjacent rotation blocks.

[0015] As a further solution of the present invention, the plug block is adaptively matched with the connecting slot, the slot is adaptively matched with the plug block and the two rotating blocks as a whole, the rotating block is adaptively matched with the rotating slot, and the sides of the low-frequency control mounting plate and the high-frequency drive mounting plate are both provided with electronic transformer integrated circuit boards.

[0016] The above-mentioned embodiments of the present invention can achieve the following beneficial effects: by adopting a folding isolation structure design, the microwave oven achieves efficient space utilization and convenient installation of the electronic transformer mainboard. When the low-frequency control mainboard and the high-frequency drive mainboard need to be maintained or installed, it is only necessary to pull the high-frequency drive mounting plate outward, and the linkage rotating rod can fully unfold the low-frequency control mounting plate and the high-frequency drive mounting plate hidden in the isolation groove to form an external working platform. This innovative folding mechanism not only avoids the crowded wiring environment inside the traditional microwave oven, but also provides technicians with an open operating space, significantly improving the convenience of mainboard installation and maintenance.

[0017] At the same time, the stored low-frequency control mounting plate acts as a natural isolation barrier, effectively blocking the electromagnetic interference between the installed low-frequency control mainboard and the high-frequency driver mainboard. This physical isolation solution is more reliable than traditional shielding materials.

[0018] The synergistic effect of a scissor-type linkage and baffle locking solves the operational challenges of embedded structures. The upper and lower fork rods convert linear tension into a scissor-like contraction motion, allowing the high-frequency drive mounting plate hidden deep within the isolation slot to be easily pulled out. Combined with the innovative locking insert, the mechanical locks at all four locations can be simultaneously released by simply rotating the lever. This multi-link linkage mechanism saves operation time compared to traditional screw fixing methods. The precise matching of the baffle's arc edge to the isolation slot ensures a smooth appearance while effectively controlling electromagnetic leakage.

[0019] Through a spring self-positioning system, this mounting plate structure revolutionizes the assembly process of electronic components. When the motherboard contacts the inclined pressure block, the symmetrically distributed spring group generates adaptive pressure, pushing the positioning plate and positioning block to automatically calibrate in three dimensions. This dynamic balancing mechanism ensures that the motherboard is always precisely positioned in the center of the mounting plate. Compared with traditional installation methods that require manual hole alignment, this design not only eliminates visual alignment errors, but its continuously applied elastic preload also constitutes secondary protection against vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a microwave oven with a dual-frequency electronic transformer according to the present invention;

[0021] Figure 2 This is a disassembled display diagram of a folding isolation structure with a dual-frequency electronic transformer of the present invention;

[0022] Figure 3 The present invention is a dual-frequency electronic transformer Figure 2 A magnified view of part A;

[0023] Figure 4 The present invention is a dual-frequency electronic transformer Figure 2 A magnified view of part B;

[0024] Figure 5 This is a diagram showing the positioning structure of a low-frequency control mounting plate with a dual-frequency electronic transformer after flipping over;

[0025] Figure 6 This is a disassembled display diagram of a baffle with a dual-frequency electronic transformer according to the present invention;

[0026] Figure 7 This is a dissected and disassembled diagram of a baffle with a dual-frequency electronic transformer according to the present invention;

[0027] Figure 8 The present invention is a dual-frequency electronic transformer Figure 7 Magnified view of part C;

[0028] Figure 9 This is a schematic diagram of the unfolded structure of a rotating plate with a dual-frequency electronic transformer, a low-frequency control mounting plate, a high-frequency drive mounting plate, and a baffle according to the present invention;

[0029] Figure 10 This is a structural diagram of a low-frequency control mounting board after the installation of an electronic transformer integrated circuit board with a dual-frequency electronic transformer of the present invention is completed.

[0030] In the figure: 1. microwave body; 2. folding isolation structure; 3. isolation slot; 4. rotating plate; 5. low-frequency control mounting plate; 6. high-frequency drive mounting plate; 7. baffle; 8. upper fork rod; 9. lower fork rod; 10. plug-in shaft; 11. fixed block; 12. rotating rod; 13. slider 1; 14. positioning structure; 15. fixed plate; 16. positioning plate; 17. slider 1; 18. spring 1; 19. anti-slip block 1; 20. pressure block 1; 21. connecting block; 22. slider 2; 23. positioning block; 24. pressure block 2; 25. spring 2; 26. anti-slip block 2; 27. connecting hole; 28. connecting slot; 29. plug-in block; 30. rotating block; 31. slot; 32. lever; 33. rotating slot; 34. slider 2; 35. electronic transformer integrated circuit board. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figures 1-10As shown, a microwave oven with a dual-frequency electronic transformer includes a microwave body 1, a folding isolation structure 2 is provided on the side of the microwave body 1, the folding isolation structure 2 includes a plurality of fixed blocks 11 and a plurality of rotating rods 12, an isolation slot 3 is opened on the side of the microwave body 1, a rotating plate 4 is rotatably connected inside the isolation slot 3, a low-frequency control mounting plate 5 and a high-frequency drive mounting plate 6 are sequentially provided on one side of the rotating plate 4, a plurality of fixed blocks 11 are respectively fixedly connected to one side of the rotating plate 4 near the upper right corner and the lower left corner, the other side of the low-frequency control mounting plate 5 near the upper left corner and the lower right corner, one side of the low-frequency control mounting plate 5 near the upper right corner and the lower left corner, and one side of the high-frequency drive mounting plate 6 near the upper left corner and the lower right corner, and the rotating rod 12 is rotatably connected to two adjacent fixed blocks 11 located on the same plane.

[0033] In actual operation, when the low-frequency control main board and the high-frequency drive main board need to be installed on the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 respectively, the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 can be unfolded by folding the isolation structure 2, so that the low-frequency control main board and the high-frequency drive main board can be installed outside the microwave main body 1. The specific steps are as follows:

[0034] Now pull the high-frequency drive mounting plate 6 outward, and through the two outermost rotating rods 12, drive the low-frequency control mounting plate 5 to rotate outward together, and then through the two innermost rotating rods 12, drive the rotating plate 4 to rotate outward together, so that the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 can be unfolded, so that the low-frequency control main board and the high-frequency drive main board can be installed on the outside of the microwave main body 1;

[0035] Since the low-frequency control main board and the high-frequency drive main board are installed in a foldable manner inside the isolation slot 3, compared with the traditional installation method, space is saved. At the same time, the low-frequency control main board and the high-frequency drive main board are isolated by the low-frequency control mounting plate 5, thereby avoiding mutual interference between the low-frequency control main board and the high-frequency drive main board.

[0036] In this embodiment, the front and rear parts of the rotating plate 4, the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 are all arranged in an arc shape, and a baffle 7 is provided on the other side of the high-frequency drive mounting plate 6. The baffle 7 is adaptively matched with the isolation slot 3, and one side of the isolation slot 3 can be blocked by the baffle 7.

[0037] In this embodiment, a slider 13 is slidably connected to the upper left corner and lower right corner of the other side of the high-frequency drive mounting plate 6 and the upper right corner and lower left corner of one side of the baffle 7, and a slider 2 34 is slidably connected to the upper right corner and lower left corner of the other side of the high-frequency drive mounting plate 6 and the upper left corner and lower right corner of the baffle 7. A lower fork rod 9 is rotatably connected between two adjacent sliders 13 located in the same plane, and an upper fork rod 8 is rotatably connected between two adjacent sliders 2 34 located in the same plane, and an insert shaft 10 is connected through the centers of adjacent lower fork rods 9 and upper fork rods 8.

[0038] The upper fork rod 8 and the lower fork rod 9 are arranged in a scissor shape. Since the high-frequency drive mounting plate 6 is embedded in the isolation groove 3 in the initial state, it is not easy to pull the high-frequency drive mounting plate 6. At this time, the baffle 7 can be pulled to drive the upper fork rod 8 and the lower fork rod 9 near the top and the upper fork rod 8 and the lower fork rod 9 near the bottom to contract in a scissor shape, thereby pulling the high-frequency drive mounting plate 6.

[0039] In this embodiment, a positioning structure 14 is provided on the other side of the low-frequency control mounting plate 5 and one side of the high-frequency drive mounting plate 6. The positioning structure 14 includes two positioning plates 16. Two fixing plates 15 are symmetrically fixedly connected to the other side of the low-frequency control mounting plate 5. Three sliding rods 17 are fixedly connected to the opposite sides of the two positioning plates 16. One end of the sliding rod 17 passes through the outer side of the fixing plate 15. A spring 18 is fixedly connected between the fixing plate 15 and the positioning plate 16 and on the outer surface of the sliding rod 17. Two connecting blocks 21 are symmetrically fixedly connected to the two positioning plates 16. Two positioning blocks 23 are provided between two adjacent connecting blocks 21. A spring 25 is fixedly connected between the positioning block 23 and the connecting block 21 and on the outer surface of the sliding rod 22. Four connecting holes 27 are opened on one side of the low-frequency control mounting plate 5 through the other side.

[0040] The traditional installation method is to align the mounting holes of the mainboard with the mounting holes of the bearing surface. Therefore, an alignment operation is required, which is troublesome. However, in the present invention, the mainboard can be automatically positioned through the positioning structure 14. Specifically, the low-frequency control mounting plate 5 is placed between the two positioning plates 16. The two sides of the low-frequency control mainboard will be squeezed by the two pressure blocks 20, so that the two positioning plates 16 slide away from each other. The top and bottom of the low-frequency control mainboard will be squeezed by the two pairs of pressure blocks 24, so that the two pairs of positioning blocks 23 move away from each other. The springs 18 and 25 provide squeezing for the two sides and top of the low-frequency control mainboard. Pressure, at the same time, since the springs 18 on both sides are symmetrically arranged, and the spring 2 25 on the top and the spring 2 25 on the bottom are also symmetrically arranged, the extrusion forces on the two sides, top and bottom of the low-frequency control mainboard are symmetrical, so that the low-frequency control mainboard can be positioned to the center of the low-frequency control mounting plate 5. At this time, the connecting hole 27 of the low-frequency control mounting plate 5 and the mounting hole of the low-frequency control mainboard overlap, so that they can be fixed by screws. After the fixation is completed, the spring 18 and the spring 2 25 will continue to provide extrusion force to the low-frequency control mainboard, thereby providing a double fixing method for the low-frequency control mainboard.

[0041] In this embodiment, the adjacent sides of the two positioning plates 16 are fixedly connected with a first pressing block 20 , and the adjacent surfaces of a pair of upper and lower adjacent positioning blocks 23 are fixedly connected with a second pressing block 24 .

[0042] In this embodiment, the two first pressing blocks 20 are symmetrical with each other, and the second pressing block 24 is symmetrical with each other. The side surfaces of the first pressing block 20 and the second pressing block 24 are both inclined.

[0043] In this embodiment, one end of the slide bar 17 is fixedly connected to the side of the fixed plate 15 with an anti-slip block 19, and the top of the slide bar 22 is fixedly connected to the top of the connecting block 21 with an anti-slip block 26.

[0044] In this embodiment, two placement grooves are symmetrically formed on the front and back sides of the baffle 7 , and the insert blocks 29 are placed inside the placement grooves. Two slots 31 are symmetrically formed on the front and back sides of the isolation groove 3 .

[0045] In this embodiment, a rotation groove 33 is formed inside the baffle 7 at the top and bottom of the placement groove. A rotation block 30 is fixedly connected to the top and bottom of the insert block 29. A connecting groove 28 is formed on the side of the baffle 7 and communicates with the placement groove. A shift rod 32 is connected between the sides of two adjacent rotation blocks 30.

[0046] In the initial state, the plug block 29 is inserted into the slot 31, thereby fixing the baffle 7. When the high-frequency drive mounting plate 6 needs to be pulled through the baffle 7, the lever 32 is first slid along the two connecting grooves 28 on the same side, thereby driving the two plug blocks 29 on the same side and the rotating block 30 connected thereto to move together until the rotating block 30 moves to the rightmost end of the rotating groove 33. At this time, the plug block 29 is separated from the slot 31. At this time, the two plug blocks 29 on the same side are rotated by the lever 32, so that the rotating block 30 rotates along the rightmost end of the rotating groove 33. At this time, the baffle 7 can be pulled by the lever 32.

[0047] In this embodiment, the plug block 29 is adaptively matched with the connecting slot 28, the slot 31 is adaptively matched with the overall structure of the plug block 29 and the two rotating blocks 30, the rotating block 30 is adaptively matched with the rotating slot 33, and the sides of the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 are both provided with electronic transformer integrated circuit boards 35, among which the electronic transformer integrated circuit board 35 provided on the low-frequency control mounting plate 5 is the low-frequency control main board, and the electronic transformer integrated circuit board 35 provided on the high-frequency drive mounting plate 6 is the high-frequency drive main board.

[0048] It should be noted that the present invention is a microwave oven with a dual-frequency electronic transformer. When the low-frequency control mainboard and the high-frequency drive mainboard need to be installed on the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6, respectively, the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 can be unfolded by folding the isolation structure 2, so that the low-frequency control mainboard and the high-frequency drive mainboard can be installed outside the microwave main body 1. The specific steps are as follows:

[0049] Now pull the high-frequency drive mounting plate 6 outward, and through the two outermost rotating rods 12, drive the low-frequency control mounting plate 5 to rotate outward together, and then through the two innermost rotating rods 12, drive the rotating plate 4 to rotate outward together, so that the low-frequency control mounting plate 5 and the high-frequency drive mounting plate 6 can be unfolded, so that the low-frequency control main board and the high-frequency drive main board can be installed on the outside of the microwave main body 1;

[0050] Since the low-frequency control main board and the high-frequency drive main board are installed in a foldable manner inside the isolation groove 3, compared with the traditional installation method, space is saved. At the same time, the low-frequency control main board and the high-frequency drive main board are isolated by the low-frequency control mounting plate 5, so that the low-frequency control main board and the high-frequency drive main board can be prevented from interfering with each other. The upper fork rod 8 and the lower fork rod 9 are arranged in a scissor shape. Since the high-frequency drive mounting plate 6 is embedded in the isolation groove 3 in the initial state, it is not easy to pull the high-frequency drive mounting plate 6. At this time, the baffle 7 can be pulled to drive the upper fork rod 8 and the lower fork rod 9 near the top and the upper fork rod 8 and the lower fork rod 9 near the bottom to contract in a scissor shape, so that the high-frequency drive mounting plate 6 can be pulled;

[0051] The traditional installation method is to align the mounting holes of the mainboard with the mounting holes of the bearing surface. Therefore, an alignment operation is required, which is troublesome. However, in the present invention, the mainboard can be automatically positioned through the positioning structure 14. Specifically, the low-frequency control mounting plate 5 is placed between the two positioning plates 16. The two sides of the low-frequency control mainboard will be squeezed by the two pressure blocks 20, so that the two positioning plates 16 slide away from each other. The top and bottom of the low-frequency control mainboard will be squeezed by the two pairs of pressure blocks 24, so that the two pairs of positioning blocks 23 move away from each other. The springs 18 and 25 provide squeezing for the two sides and top of the low-frequency control mainboard. Pressure, at the same time, because the springs 18 on both sides are symmetrically arranged, and the springs 25 on the top and the springs 25 on the bottom are also symmetrically arranged, the extrusion forces on the two sides, top and bottom of the low-frequency control mainboard are symmetrical, so that the low-frequency control mainboard can be positioned at the center of the low-frequency control mounting plate 5. At this time, the connection hole 27 of the low-frequency control mounting plate 5 and the mounting hole of the low-frequency control mainboard overlap, so that they can be fixed by screws. After the fixing is completed, the springs 18 and 25 will continue to provide extrusion force to the low-frequency control mainboard, thereby providing a double fixing method for the low-frequency control mainboard;

[0052] In the initial state, the insert block 29 is inserted into the slot 31, thereby fixing the baffle 7. When the high-frequency drive mounting plate 6 needs to be pulled through the baffle 7, the lever 32 is first slid along the two connecting grooves 28 on the same side, thereby driving the two insert blocks 29 on the same side and the rotating block 30 connected thereto to move together until the rotating block 30 moves to the rightmost end of the rotating groove 33. At this time, the insert block 29 is separated from the slot 31. At this time, the two insert blocks 29 on the same side are rotated by the lever 32, so that the rotating block 30 rotates along the rightmost end of the rotating groove 33. At this time, the baffle 7 can be pulled by the lever 32.

[0053] The dual-frequency conversion system of the microwave oven realizes functional division by carrying two sets of electronic transformer integrated circuit boards 35 respectively through the low-frequency control mounting board 5 and the high-frequency drive mounting board 6:

[0054] The electronic transformer integrated circuit board 35 on the low-frequency control mounting board 5 is responsible for the low-frequency control function, including receiving user instructions, such as heating mode and time setting, then processing the temperature and humidity sensor signals and generating a low-frequency PWM control signal. The PWM signal is transmitted to the electronic transformer integrated circuit board 35 on the high-frequency drive mounting board 6 through the interface of the electronic transformer integrated circuit board 35;

[0055] The electronic transformer integrated circuit board 35 on the high-frequency drive mounting board 6 is responsible for the high-frequency drive function, converting the low-frequency signal into a high-frequency current, and outputting continuously adjustable microwave energy through the magnetron inside the microwave body 1.

Claims

1. A microwave oven with a dual-frequency electronic transformer, comprising a microwave main body (1), a folding isolation structure (2) being provided on the side of the microwave main body (1), characterized in that: The folding isolation structure (2) comprises a plurality of fixed blocks (11) and a plurality of rotating rods (12). An isolation slot (3) is provided on the side of the microwave body (1). A rotating plate (4) is rotatably connected inside the isolation slot (3). A low-frequency control mounting plate (5) and a high-frequency drive mounting plate (6) are sequentially arranged on one side of the rotating plate (4). The plurality of fixed blocks (11) are respectively fixedly connected to one side of the rotating plate (4) at the upper right corner and the lower left corner, the other side of the low-frequency control mounting plate (5) at the upper left corner and the lower right corner, one side of the low-frequency control mounting plate (5) at the upper right corner and the lower left corner, and one side of the high-frequency drive mounting plate (6) at the upper left corner and the lower right corner. The rotating rod (12) is rotatably connected to two adjacent fixed blocks (11) located on the same plane.

2. A microwave oven with a dual-frequency electronic transformer according to claim 1, characterized in that: The front and rear parts of the rotating plate (4), the low-frequency control mounting plate (5) and the high-frequency drive mounting plate (6) are all arranged in an arc shape. A baffle (7) is arranged on the other side of the high-frequency drive mounting plate (6), and the baffle (7) is adaptively matched with the isolation slot (3).

3. A microwave oven with a dual-frequency electronic transformer according to claim 2, characterized in that: The other side of the high-frequency drive mounting plate (6) is slidably connected to a slider 1 (13) near the upper left corner and the lower right corner and one side of the baffle (7) near the upper right corner and the lower left corner, and the other side of the high-frequency drive mounting plate (6) is slidably connected to a slider 2 (34) near the upper right corner and the lower left corner and the upper left corner of the baffle (7), a lower fork rod (9) is rotatably connected between two adjacent sliders 1 (13) located on the same plane, an upper fork rod (8) is rotatably connected between two adjacent sliders 2 (34) located on the same plane, and an insertion shaft (10) is connected through the centers of the adjacent lower fork rods (9) and the upper fork rods (8).

4. A microwave oven with a dual-frequency electronic transformer according to claim 1, characterized in that: The other side of the low-frequency control mounting plate (5) and one side of the high-frequency drive mounting plate (6) are both provided with a positioning structure (14), the positioning structure (14) includes two positioning plates (16), the other side of the low-frequency control mounting plate (5) is symmetrically fixedly connected to two fixed plates (15), the two positioning plates (16) are fixedly connected to the sides away from each other with three sliding rods (17), one end of the sliding rod (17) passes through the outer side of the fixed plate (15), a spring (18) is fixedly connected between the fixed plate (15) and the positioning plate (16) and located on the outer surface of the sliding rod (17), the two positioning plates (16) are symmetrically fixedly connected to two connecting blocks (21) close to each other, two positioning blocks (23) are provided between two adjacent connecting blocks (21), a spring (25) is fixedly connected between the positioning block (23) and the connecting block (21) and located on the outer surface of the sliding rod (22), and four connecting holes (27) are opened on one side of the low-frequency control mounting plate (5) and through the other side.

5. A microwave oven with a dual-frequency electronic transformer according to claim 4, characterized in that: The adjacent sides of the two positioning plates (16) are fixedly connected with a first pressing block (20), and the adjacent surfaces of a pair of upper and lower adjacent positioning blocks (23) are fixedly connected with a second pressing block (24).

6. A microwave oven with a dual-frequency electronic transformer according to claim 5, characterized in that: The two pressing blocks (20) are symmetrical in left-right relation, and the two pressing blocks (24) are symmetrical in top-bottom relation. The side surfaces of the pressing blocks (20) and (24) are both inclined.

7. A microwave oven with a dual-frequency electronic transformer according to claim 4, characterized in that: One end of the slide bar 1 (17) is fixedly connected to an anti-slip block 1 (19) on the side of the fixed plate (15), and the top of the slide bar 2 (22) is fixedly connected to an anti-slip block 2 (26) on the top of the connecting block (21).

8. The microwave oven with a dual-frequency electronic transformer according to claim 2, characterized in that: The front and back sides of the baffle (7) are both symmetrically provided with two placement grooves, and the insert blocks (29) are placed inside the placement grooves. The interior of the isolation groove (3) is both symmetrically provided with two slots (31) near the front and back.

9. A microwave oven with a dual-frequency electronic transformer according to claim 8, characterized in that: A rotation groove (33) is provided inside the baffle (7) and at the top and bottom of the placement groove. The top and bottom of the insert block (29) are fixedly connected to a rotation block (30). A connecting groove (28) communicating with the placement groove is provided on the side of the baffle (7). A shifting rod (32) is connected between the side surfaces of two upper and lower adjacent rotation blocks (30).

10. A microwave oven with a dual-frequency electronic transformer according to claim 9, characterized in that: The insert block (29) is adaptively matched with the connection slot (28), the slot (31) is adaptively matched with the entirety of the insert block (29) and the two rotating blocks (30), the rotating blocks (30) are adaptively matched with the rotating slots (33), and the sides of the low-frequency control mounting plate (5) and the high-frequency drive mounting plate (6) are both provided with electronic transformer integrated circuit boards (35).

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