Hot air circulation oven for the production of microwave oven high voltage capacitors

Abstract

This invention discloses a hot air circulating oven for the production of high-voltage capacitors in microwave ovens, relating to the field of capacitor processing technology. The invention includes a base plate, which comprises a protective structure fixedly connected to its upper surface. Condensation structures are fixedly connected to both sides of the inner cavity of the protective structure. A water-pumping structure is symmetrically arranged on the lower end of the inner cavity of the protective structure. The upper part of the ends of the two water-pumping structures that are far apart from each other is fixedly connected to the condensation structure. Through the flow structure on the condensation structure, condensate is blocked and stored during use. Furthermore, a one-way permeation membrane ensures that water flow between the placement structure and the base plate is unidirectional, facilitating the placement and removal of capacitors within the protective frame. Simultaneously, the presence of the protective frame and door panel protects internal components during the drying process, preventing moisture accumulation that could affect the drying effect. It also effectively treats the moisture generated during drying, maintaining a relatively dry internal environment.

Description

Technical Field

[0001] This invention relates to the field of capacitor processing technology, and in particular to a hot air circulating oven for the production of high-voltage capacitors for microwave ovens. Background Technology

[0002] Currently, capacitors are among the most widely used electronic components in electronic devices, extensively applied in circuits for DC blocking and AC transmission, coupling, bypassing, filtering, tuning circuits, energy conversion, and control. A capacitor, often simply called a capacitor and represented by the letter C, is a device that stores electrical charge. Any two conductors (including wires) that are insulated from each other and very close together constitute a capacitor. During the stamping process, a suitable amount of lubricating oil needs to be added to the capacitor casing to extend the life of the stamping die and improve the quality of the capacitor casing. Therefore, the stamped capacitor casing must be cleaned. To remove the oil stains from the capacitor casing during processing, it needs to be cleaned, and then dried.

[0003] A search revealed a Chinese invention patent, CN119022602A, which discloses a drying device for the production and processing of capacitor casings. This device solves the problems of low drying efficiency, poor drying effect, and inconvenience in movement found in existing technologies. The device includes a casing and a warm air blower. The output end of the warm air blower is fixedly connected to an air inlet pipe via screws. The air inlet pipe is fixedly fitted inside the casing, and a sliding sleeve is fixedly connected inside the air inlet pipe via screws. A sliding block is slidably assembled inside the sliding sleeve. Through the arrangement of a first screw, a second screw, and other structures, a servo motor is activated. The servo motor drives the first screw to rotate intermittently in both directions. The sliding sleeve causes the guide vanes to rotate left and right. The second screw and the fixed block move the drying chamber left and right. The bottom of the guide vanes rotates in the opposite direction to the movement of the drying chamber, reducing the travel distance and increasing the hot air flow range, thus accelerating the drying of parts and improving drying efficiency.

[0004] Existing drying ovens lack a specific structure for securing capacitors during the drying process. If capacitors are not properly secured, they may shift due to the hot air, leading to uneven drying or even collisions with other components inside the oven, causing damage. Furthermore, there may be no effective way to handle the vapors from the evaporation of liquid from the capacitor's outer surface. Vapors permeating the oven can affect drying efficiency, and if they condense on the inner walls, they may cause corrosion or other damage to the internal structure.

[0005] Therefore, existing hot air circulating ovens used in the production of high-voltage capacitors for microwave ovens cannot meet the needs of actual use, so there is an urgent need for improved technologies to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a hot air circulating oven for the production of high-voltage capacitors for microwave ovens, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] This invention relates to a hot air circulating oven for the production of high-voltage capacitors for microwave ovens, comprising a base plate. The base plate includes a protective structure fixedly connected to the upper surface of the base plate. Condensation structures are fixedly connected to both sides of the inner cavity of the protective structure. A water-pumping structure is symmetrically arranged on the lower end of the inner cavity of the protective structure. The upper part of the ends of the two water-pumping structures that are far apart from each other is fixedly connected to the condensation structure. A flow structure is provided between the condensation structure and the protective structure. A placement structure is fixedly connected to the middle of the upper end of the inner cavity of the protective structure. A fixing structure is rotatably connected to the middle of the inner cavity of the placement structure. A heating structure is fixedly connected to the middle of the upper end of the protective structure. A heating control structure is provided on the right side of the upper end of the protective structure. A blower structure is fixedly connected to the middle of the upper end of the protective structure. A dustproof structure is fixedly connected to the upper end of the blower structure.

[0009] Preferably, the protective structure includes a protective frame fixedly connected to the upper surface of the base plate, a top plate fixedly connected to the upper surface of the protective frame, and cabinet doors symmetrically hinged to the front surface of the protective frame via hinges. The cabinet doors include door panels symmetrically hinged to the front surface of the protective frame, and a control lock is fixedly connected to the end of the front surface of the door panel away from the protective frame.

[0010] Preferably, the condensation structure includes connecting plates fixedly connected to the upper left and right sides of the inner cavity of the protective frame, condensation tubes are uniformly fixedly connected to the outer surface of the connecting plates, a transmission tube is fixedly connected to the upper end face of the condensation tubes, and the lower end face of the condensation tubes is fixedly connected to the placement structure.

[0011] Preferably, the pumping structure includes a pump symmetrically and fixedly connected to the lower end face of the inner cavity of the protective frame. A water supply pipe is fixedly connected to one end of the pump that is far away from the pump. A connecting rod is fixedly connected to one end of the water supply pipe that is far away from the pump. The upper end face of the connecting rod is fixedly connected to the condenser pipe. The pump, the water supply pipe, the connecting rod and the condenser pipe are interconnected. The pump is located in the lower part of the inner cavity of the placement structure.

[0012] Preferably, the flow structure includes a partition frame fixedly connected to the lower condenser tube, a one-way permeable membrane is fixedly connected between the placement structure and the partition frame, and the end of the partition frame away from the placement structure is fixedly connected to the protective frame.

[0013] Preferably, the placement structure includes support columns symmetrically and fixedly connected to the inner cavity of the protective frame, a placement plate fixedly connected to the upper end face of the support column, a placement rack fixedly connected to the upper end face of the placement plate, a fixing structure rotatably connected to the inner cavity of the placement rack, and a water pump fixedly connected to the lower end face of the inner cavity of the support column.

[0014] Preferably, the fixing structure includes a rotating shaft rotatably connected to the inner cavity of the placement rack, a fixing plate fixedly connected between the two rotating shafts, sliding rods symmetrically fixedly connected to the upper and lower end faces of the fixing plate, a pressing plate slidably connected to the outer surface of the sliding rods, and a spring drivingly connected between the end of the sliding rod away from the rotating shaft and the pressing plate.

[0015] Preferably, the heating structure includes connecting columns symmetrically fixedly connected to the lower end face of the top plate, an EO mounting rod fixedly connected to the lower end face of the connecting column, a heating tube being snapped into the mounting rod, and a heating control structure being provided at the output ends on both sides of the heating tube.

[0016] Preferably, the heating control structure includes a conductive frame fixedly connected to the output ends on both sides of the heating tube. The upper end of the conductive frame extends through the top plate, and a transmission cable is fixedly connected to the upper surface of the conductive frame. A control module is fixedly connected to the rear right side of the upper surface of the top plate. The ends of the two transmission cables away from the conductive frame are fixedly connected to the control module. The heating tube is electrically connected to the control module through the conductive frame and the transmission cable.

[0017] Preferably, the blower structure includes a blower frame fixedly connected to the middle of the upper surface of the top plate, a rotating frame fixedly connected to the inner cavity of the blower frame, a rotating shaft rotatably connected to the inner cavity of the rotating frame, fan blades uniformly fixedly connected to the outer surface of the rotating shaft, a micro motor fixedly connected to the middle of the inner cavity of the rotating shaft, the output end of the micro motor fixedly connected to the fan blades, and a dustproof structure fixedly connected to the upper surface of the blower frame. The dustproof structure includes a magnetic frame fixedly connected to the upper surface of the blower frame, a connecting frame magnetically connected to the inner cavity of the dustproof structure, and a dustproof net fixedly connected to the inner cavity of the connecting frame.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention utilizes a protective structure mounted on the base plate to install and place a condensing structure, a heating structure, a heating control structure, and a blower structure during use. The opening and closing of the protective frame's inner cavity is controlled and adjusted by rotating the cabinet door. The condensing structure on the protective structure circulates the low-temperature liquid transported by the pumping structure during use. The steam generated during drying is condensed and collected via a condenser pipe. The pumping structure on the base plate transports water between the base plate and the placement structure to the condensing structure during use. A water pump drives the water flow between the placement structure and the base plate. The condensing structure's circulation structure facilitates the flow of water during use. The condensate is blocked and stored in the middle, and the water flow between the placement structure and the base plate is unidirectional through the one-way permeation membrane. This makes it convenient for personnel to put and take out capacitors into the protective frame during use. At the same time, the presence of the protective frame and door panel can protect the internal components during the drying process, prevent external interference, and avoid excessive loss of internal hot air. It can also condense the steam generated during drying. The water pumping structure can circulate and collect the condensed water to prevent moisture from accumulating inside during the drying process and affecting the drying effect. It also achieves effective treatment of water vapor generated during drying, keeping the internal environment relatively dry, which is conducive to the continuous drying process.

[0020] 2. This invention utilizes a placement structure on the base plate to install and place a fixing structure during use. The fixing structure is then suspended by support columns and a placement plate, allowing for the storage of condensate. The fixing structure on the placement structure clamps and secures the capacitor during use. The rotation of the rotating shaft ensures uniform heating of all surfaces of the capacitor. The heating structure on the protective structure heats the inner cavity of the protective structure during use, and the heating tube provides the necessary heat for drying the capacitor. The heating control structure on the protective structure provides power to the heating structure during use, and the control module controls the switching of the heating structure. The system controls the airflow within the protective structure, driving the circulation of hot air to the capacitors. This ensures that all parts of the capacitors are thoroughly heated. A dustproof structure on the airflow system filters and isolates dust from the outside air as it is drawn in. A magnetic holder and connecting frame facilitate easy replacement and cleaning of the dustproof screen. The capacitors remain stable during drying, preventing shaking that could affect the drying process or damage the capacitors. The airflow ensures that hot air is evenly distributed to the capacitors, improving drying uniformity and efficiency. Furthermore, the force of the airflow causes the fixed structure 7 to rotate, further promoting cyclical and uniform drying of the capacitors, ensuring that all parts are thoroughly dried.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0024] Figure 2 This is a rear-view stereoscopic structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the transverse half-section three-dimensional structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the longitudinal half-section three-dimensional structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the installation structure of the flow structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation structure of the blower structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the installation structure of the heating structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the installation structure of the fixed structure of the present invention.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Base plate; 2. Protective structure; 21. Protective frame; 22. Top plate; 23. Cabinet door; 231. Door panel; 232. Control lock; 3. Condensation structure; 31. Connecting plate; 32. Condensation pipe; 33. Transmission pipe; 4. Pumping structure; 41. Water pump; 42. Water supply pipe; 43. Connecting rod; 5. Flow structure; 51. One-way permeable membrane; 52. Divider; 6. Placement structure; 61. Support column; 62. Placement plate; 63. Placement rack; 7. Fixing structure 71. Rotating shaft; 72. Fixing plate; 73. Sliding rod; 74. Extrusion plate; 8. Heating structure; 81. Connecting column; 82. Mounting rod; 83. Heating tube; 9. Heating control structure; 91. Conductive frame; 92. Transmission cable; 93. Control module; 10. Blower structure; 101. Blower frame; 102. Rotating frame; 103. Rotating shaft; 104. Fan blade; 11. Dustproof structure; 111. Magnetic frame; 112. Connecting frame; 113. Dustproof net. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] Please see Figure 1-8 As shown, this embodiment is a hot air circulating oven for the production of high-voltage capacitors for microwave ovens, including a base plate 1. The base plate 1 includes a protective structure 2 fixedly connected to the upper surface of the base plate 1. A condensing structure 3 is fixedly connected to both the left and right sides of the inner cavity of the protective structure 2. A water pumping structure 4 is symmetrically arranged on the lower surface of the inner cavity of the protective structure 2. The upper part of the two water pumping structures 4 that are far apart from each other is fixedly connected to the condensing structure 3. A flow structure 5 is arranged between the condensing structure 3 and the protective structure 2. A placement structure 6 is fixedly connected to the middle of the upper surface of the inner cavity of the protective structure 2. A fixing structure 7 is rotatably connected to the middle of the inner cavity of the placement structure 6. A heating structure 8 is fixedly connected to the middle of the upper surface of the inner cavity of the protective structure 2. A heating control structure 9 is arranged on the right side of the upper surface of the protective structure 2. A blower structure 10 is fixedly connected to the middle of the upper surface of the protective structure 2. A dustproof structure 11 is fixedly connected to the upper surface of the blower structure 10.

[0035] Furthermore, the protective structure 2 includes a protective frame 21 fixedly connected to the upper surface of the base plate 1. A top plate 22 is fixedly connected to the upper surface of the protective frame 21. A cabinet door 23 is symmetrically hinged to the front end of the protective frame 21 via a hinge. The cabinet door 23 includes a door panel 231 symmetrically hinged to the front end of the protective frame 21. A control lock 232 is fixedly connected to the end of the front end of the door panel 231 away from the protective frame 21. Through the protective structure 2 on the base plate 1, the condensing structure 3, the heating structure 8, the heating control structure 9, and the blower structure 10 can be installed and placed during use. The opening and closing of the inner cavity of the protective frame 21 can be controlled and adjusted by rotating the cabinet door 23. This facilitates the insertion and removal of capacitors into and out of the protective frame during use. At the same time, the presence of the protective frame and door panel can protect the internal components during the drying process, prevent external interference, and avoid excessive loss of internal hot air.

[0036] Furthermore, the condensation structure 3 includes connecting plates 31 fixedly connected to the upper left and right sides of the inner cavity of the protective frame 21. Condensation pipes 32 are uniformly fixedly connected to the outer surface of the connecting plates 31. A transmission pipe 33 is fixedly connected to the upper end face of the condensation pipe 32. The lower end face of the condensation pipe 32 is fixedly connected to the placement structure 6. Through the condensation structure 3 on the protective structure 2, the low-temperature liquid transmitted by the pumping structure 4 is transported and circulated, and then the steam during drying is condensed and collected through the condensation pipe 32.

[0037] Furthermore, the water pumping structure 4 includes a water pump 41 symmetrically and fixedly connected to the lower end face of the inner cavity of the protective frame 21. A water supply pipe 42 is fixedly connected to one end of the water pump 41 that is far away from the water pump 41. A connecting rod 43 is fixedly connected to the other end of the water supply pipe 42 that is far away from the water pump 41. The upper end face of the connecting rod 43 is fixedly connected to the condenser pipe 32. The water pump 41, the water supply pipe 42, the connecting rod 43 and the condenser pipe 32 are interconnected. The water pump 41 is located in the lower part of the inner cavity of the placement structure 6. Through the water pumping structure 4 on the base plate 1, the water flow between the base plate 1 and the placement structure 6 is transported to the condenser structure 3 during use. The water pump 41 drives the water flow between the placement structure 6 and the base plate 1, thereby condensing the steam generated during drying. The water pumping structure 4 can collect the condensed water in a circulating manner to prevent moisture from accumulating inside during the drying process and affecting the drying effect. At the same time, it also achieves effective treatment of the water vapor generated during drying, keeping the internal environment relatively dry, which is conducive to the continuous drying process.

[0038] Furthermore, the flow structure 5 includes a partition frame 52 fixedly connected to the lower condenser tube 32, and a one-way permeable membrane 51 fixedly connected between the placement structure 6 and the partition frame 52. The end of the partition frame 52 away from the placement structure 6 is fixedly connected to the protective frame 21. Through the flow structure 5 on the condenser structure 3, condensate is blocked and stored during use, and the one-way permeable membrane 51 ensures that the water flow between the placement structure 6 and the bottom plate 1 can only achieve one-way flow.

[0039] Furthermore, the placement structure 6 includes support columns 61 symmetrically fixedly connected to the inner cavity of the protective frame 21. A placement plate 62 is fixedly connected to the upper end face of the support column 61, and a placement rack 63 is fixedly connected to the upper end face of the placement plate 62. A fixing structure 7 is rotatably connected to the inner cavity of the placement rack 63, and a water pump 41 is fixedly connected to the lower end face of the inner cavity of the support column 61. The fixing structure 7 is installed and placed in use through the placement structure 6 on the base plate 1, and the fixing structure 7 is suspended in the air by the support column 61 and the placement plate 62, thereby realizing the storage of condensate.

[0040] Furthermore, the fixing structure 7 includes a rotating shaft 71 rotatably connected to the inner cavity of the placement frame 63, a fixing plate 72 fixedly connected between the two rotating shafts 71, and sliding rods 73 symmetrically fixedly connected to the upper and lower end faces of the fixing plate 72. A pressing plate 74 is slidably connected to the outer surface of the sliding rod 73. A spring is connected between the end of the sliding rod 73 away from the rotating shaft 71 and the pressing plate 74. Through the fixing structure 7 on the placement structure 6, the capacitor is clamped and fixed during use, and the rotation of the rotating shaft 71 allows all surfaces of the capacitor to be heated evenly.

[0041] Furthermore, the heating structure 8 includes connecting columns 81 symmetrically fixedly connected to the lower end face of the top plate 22. The lower end face of the connecting column 81 is fixedly connected to the Yiou mounting rod 82. A heating tube 83 is snapped into the mounting rod 82. A heating control structure 9 is provided at the output ends on both sides of the heating tube 83. Through the heating structure 8 on the protective structure 2, the inner cavity of the protective structure 2 is heated during use, and then the heating tube 83 provides the required heat for drying the capacitor.

[0042] Furthermore, the heating control structure 9 includes a conductive frame 91 fixedly connected to the output ends on both sides of the heating tube 83. The upper end of the conductive frame 91 penetrates the top plate 22. A transmission cable 92 is fixedly connected to the upper surface of the conductive frame 91. A control module 93 is fixedly connected to the rear right side of the upper surface of the top plate 22. The ends of the two transmission cables 92 away from the conductive frame 91 are fixedly connected to the control module 93. The heating tube 83 is electrically connected to the control module 93 through the conductive frame 91 and the transmission cable 92. Through the heating control structure 9 on the protective structure 2, power is provided to the operation of the heating structure 8 during use, and then the switch of the heating structure 8 is controlled by the control module 93.

[0043] Furthermore, the blower structure 10 includes a blower frame 101 fixedly connected to the middle of the upper end face of the top plate 22. A rotating frame 102 is fixedly connected to the inner cavity of the blower frame 101. A rotating shaft 103 is rotatably connected to the inner cavity of the rotating frame 102. Fan blades 104 are uniformly fixedly connected to the outer surface of the rotating shaft 103. A micro motor is fixedly connected to the middle of the inner cavity of the rotating shaft 103. The output end of the micro motor is fixedly connected to the fan blades 104. A dustproof structure 11 is fixedly connected to the upper end face of the blower frame 101. The dustproof structure 11 includes a magnetic suction frame 111 fixedly connected to the upper end face of the blower frame 101. The inner cavity of the dustproof structure 11 is magnetically attached to the magnetic suction frame 111. The capacitor is connected by a connecting frame 112, and a dustproof net 113 is fixedly connected to the inner cavity of the connecting frame 112. The blower structure 10 on the protective structure 2 drives the flow of hot air in the inner cavity of the protective structure 2 during use, and then blows the hot air evenly to the capacitor to ensure that all parts of the capacitor are fully heated. The dustproof structure 11 on the blower structure 10 filters and isolates dust in the external air when the blower structure 10 draws in external air during use. The magnetic suction frame 111 and the connecting frame 112 make it convenient for personnel to replace and clean the dustproof net 113.

[0044] Working principle: During operation, pulling the control lock 232 causes the door panels 231 to rotate in opposite directions, opening the inner cavity of the protective frame 21. At this time, pulling the opposing compression plates 74 causes the spring on the sliding rod 73 to contract, resulting in the compression plates 74 sliding relative to each other on the upper and lower sides of the rotating shaft 71. This increases the distance between the compression plates 74 and the rotating shaft 71. A capacitor is then placed between the compression plates 74 and the rotating shaft 71. Releasing the compression plates 74 causes the spring on the outer surface of the sliding rod 73 to extend, bringing the compression plates 74 and the rotating shaft 71 closer together. This compresses and fixes the capacitor, and in turn, pushes the door panels 231 in the opposite direction, causing them to rotate and close the inner cavity of the protective frame 21.

[0045] During drying, the heating control structure 9 is activated. At this time, the power supply of the control module 93 is transmitted to the heating tube 83 through the transmission cable 92, thereby heating the air at the lower end of the top plate 22. The blower structure 10 is then activated, causing the output end of the micro motor inside the rotating shaft 103 to rotate. As a result, the fan blades 104 rotate, thus blowing the hot air heated by the heating tube 83 to the fixed structure 7, thereby drying the capacitor with hot air.

[0046] During the drying process of the capacitor, the liquid on the outer surface of the capacitor evaporates upon heating. This rising liquid activates the pumping structure 4, causing the pump 41 to start working. The pump transports the liquid between the base plate 1 and the placement plate 62 through the water pipe 42 and connecting rod 43 to the condensing structure 3. This allows the low-temperature liquid to enter the inner cavity of the condenser tube 32, thus lowering the temperature of the outer surface of the condenser tube 32. This causes the heated capacitor liquid vapor to adhere to the outer surface of the condenser tube 32. The condensate on the outer surface of the condenser tube 32 then falls onto the upper surface of the one-way permeation membrane 51 under gravity. The condensate further flows through the one-way permeation membrane 51 onto the upper surface of the base plate 1. The water flow between the base plate 1 and the placement plate 62 circulates within the pumping structure 4 via the pump 41, water pipe 42, and connecting rod 43, thereby condensing and collecting the steam generated during drying.

[0047] When the blower structure 10 is used for blower drying, the fixed structure 7 rotates due to the wind force, thereby achieving cyclic and uniform drying of the capacitor.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hot air circulating oven for the production of high-voltage capacitors in microwave ovens, comprising a base plate (1), characterized in that, The base plate (1) includes a protective structure (2) fixedly connected to the upper end face of the base plate (1). A condensing structure (3) is fixedly connected to both the left and right sides of the inner cavity of the protective structure (2). A pumping structure (4) is symmetrically arranged on the lower end face of the inner cavity of the protective structure (2). The upper part of the two pumping structures (4) that are far apart from each other is fixedly connected to the condensing structure (3). A flow structure (5) is arranged between the condensing structure (3) and the protective structure (2). A placement structure (6) is fixedly connected to the middle of the upper end face of the inner cavity of the protective structure (2). A fixing structure (7) is rotatably connected to the middle of the inner cavity of the placement structure (6). A heating structure (8) is fixedly connected to the middle of the upper end face of the inner cavity of the protective structure (2). A heating control structure (9) is arranged on the right side of the upper end face of the protective structure (2). A blower structure (10) is fixedly connected to the middle of the upper end face of the protective structure (2). A dustproof structure (11) is fixedly connected to the upper end face of the blower structure (10). The protective structure (2) includes a protective frame (21) fixedly connected to the upper surface of the base plate (1), a top plate (22) fixedly connected to the upper surface of the protective frame (21), and a cabinet door (23) symmetrically hinged to the front end of the protective frame (21) via a hinge. The cabinet door (23) includes a door panel (231) symmetrically hinged to the front end of the protective frame (21), and a control lock (232) fixedly connected to the end of the front end of the door panel (231) away from the protective frame (21). The condensation structure (3) includes a connecting plate (31) fixedly connected to the upper left and right sides of the inner cavity of the protective frame (21), a condensation tube (32) uniformly fixedly connected to the outer surface of the connecting plate (31), a transmission tube (33) fixedly connected to the upper end face of the condensation tube (32), and a fixed connection between the lower end face of the condensation tube (32) and the placement structure (6). The pumping structure (4) includes a pump (41) symmetrically fixedly connected to the lower end face of the inner cavity of the protective frame (21). A water supply pipe (42) is fixedly connected to one end of the pump (41) that is far away from each other. A connecting rod (43) is fixedly connected to one end of the water supply pipe (42) that is far away from the pump (41). The upper end face of the connecting rod (43) is fixedly connected to the condenser pipe (32). The pump (41), the water supply pipe (42), the connecting rod (43) and the condenser pipe (32) are interconnected. The pump (41) is located in the lower part of the inner cavity of the placement structure (6). The flow structure (5) includes a partition (52) fixedly connected to the lower condenser tube (32), a one-way permeable membrane (51) is fixedly connected between the placement structure (6) and the partition (52), and the end of the partition (52) away from the placement structure (6) is fixedly connected to the protective frame (21). The placement structure (6) includes a support column (61) symmetrically fixedly connected to the inner cavity of the protective frame (21), a placement plate (62) fixedly connected to the upper end face of the support column (61), a placement rack (63) fixedly connected to the upper end face of the placement plate (62), a fixing structure (7) rotatably connected to the inner cavity of the placement rack (63), and a water pump (41) fixedly connected to the lower end face of the inner cavity of the support column (61).

2. The hot air circulating oven for producing high-voltage capacitors in microwave ovens according to claim 1, characterized in that, The fixed structure (7) includes a rotating shaft (71) rotatably connected to the inner cavity of the placement rack (63), a fixed plate (72) is fixedly connected between the two rotating shafts (71), and sliding rods (73) are symmetrically fixedly connected to the upper and lower end faces of the fixed plate (72). A pressing plate (74) is slidably connected to the outer surface of the sliding rod (73), and a spring is connected between the end of the sliding rod (73) away from the rotating shaft (71) and the pressing plate (74).

3. The hot air circulating oven for producing high-voltage capacitors in microwave ovens according to claim 1, characterized in that, The heating structure (8) includes a connecting column (81) symmetrically fixedly connected to the lower end face of the top plate (22), an installation rod (82) fixedly connected to the lower end face of the connecting column (81), a heating tube (83) is snapped into the installation rod (82), and a heating control structure (9) is provided on both sides of the output end of the heating tube (83).

4. The hot air circulating oven for producing high-voltage capacitors in microwave ovens according to claim 1, characterized in that, The heating control structure (9) includes a conductive frame (91) fixedly connected to the output ends on both sides of the heating tube (83). The upper end of the conductive frame (91) passes through the top plate (22). A transmission cable (92) is fixedly connected to the upper surface of the conductive frame (91). A control module (93) is fixedly connected to the rear right side of the upper surface of the top plate (22). The ends of the two transmission cables (92) away from the conductive frame (91) are fixedly connected to the control module (93). The heating tube (83) is electrically connected to the control module (93) through the conductive frame (91) and the transmission cable (92).

5. The hot air circulating oven for producing high-voltage capacitors in microwave ovens according to claim 1, characterized in that, The blower structure (10) includes a blower frame (101) fixedly connected to the middle of the upper end face of the top plate (22). A rotating frame (102) is fixedly connected to the inner cavity of the blower frame (101). A rotating shaft (103) is rotatably connected to the inner cavity of the rotating frame (102). Fan blades (104) are uniformly fixedly connected to the outer surface of the rotating shaft (103). A micro motor is fixedly connected to the middle of the inner cavity of the rotating shaft (103). The output end of the micro motor is fixedly connected to the rotating shaft (103). A dustproof structure (11) is fixedly connected to the upper end face of the blower frame (101). The dustproof structure (11) includes a magnetic suction frame (111) fixedly connected to the upper end face of the blower frame (101). A connecting frame (112) is magnetically connected to the inner cavity of the magnetic suction frame (111). A dustproof net (113) is fixedly connected to the inner cavity of the connecting frame (112).

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