Microwave oven

Abstract

The microwave oven comprises a supporting piece, an air duct shell, a flow dividing piece and a flow dividing valve, the air duct shell is connected to the supporting piece, an air duct is formed between the air duct shell and the supporting piece, and an air outlet communicated with the outside is formed in the first end of the air duct; the flow dividing piece is arranged in the air duct, located on the inner side of the air outlet and comprises a flow dividing supporting part, a flow dividing opening is formed in the windward side of the flow dividing supporting part, and an air passing opening is formed in the supporting piece and communicates with the flow dividing opening; the diverter valve is connected to the diverter opening and used for controlling opening and closing of the diverter opening, when the diverter valve is opened, part of airflow output from the air duct sequentially passes through the diverter opening and the air passing opening to be conveyed to the inner side of the door body, the problem that condensation is formed on the door body in a microwave mode is avoided, and the cleaning burden of a user is relieved advantageously. In addition, the air flow directly output from the air outlet can be reduced, the safety of the outer side of the air outlet is improved, and the heat utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a microwave oven. Background Art

[0002] As a multifunctional cooking device in modern kitchens, microwave ovens have entered thousands of households. They integrate microwave heating and oven baking functions, making cooking more convenient and efficient, and helping to save the kitchen environment and improve space utilization.

[0003] The microwave oven is mainly composed of working parts such as the inverter, magnetic supply tube and control panel. The inverter and other microwave generators generate microwaves, and the magnetic supply tube is used to control the emission and stop of microwaves. When the microwave oven is in the microwave working mode, the inverter and the magnetic supply tube generate heat. Excessive heat will cause the magnetic supply tube to not work normally, and it needs to be designed for heat dissipation. Traditionally, the heat is generally output directly to the outside through the fan, which leads to a part of the heat waste, and the air outlet dissipates more heat, which will also affect the surrounding environment. In addition, because the food is self-heated during the microwave function, the hot air in the process of heating the food will contact the relatively low temperature door to produce a large amount of condensation water, and the cleaning pressure of the microwave oven will increase, affecting the user experience. Summary of the invention

[0004] The purpose of the present invention is to provide a microwave oven to solve the problems existing in the prior art that, during the heat dissipation process of the existing microwave oven, heat is concentrated and output from the air outlet, resulting in partial heat waste; in the microwave working mode, condensation water is formed on the surface of the door body, which increases the cleaning pressure of the user and causes a poor experience.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: The present invention provides a microwave oven, which comprises: Supports; An air duct housing is connected to the support member, an air duct is formed between the air duct housing and the support member, and an air outlet communicating with the outside is formed at one end of the air duct; A flow divider is arranged in the air duct and located inside the air outlet. The flow divider comprises a flow divider support portion. A flow divider port is formed on the windward surface of the flow divider support portion. An air passage is formed on the support portion. The air passage port is connected to the flow divider port. A diverter valve is connected to the diverter port and is used to control the switch of the diverter port. When the diverter valve is in the open state, part of the air flow output from the air duct is transported to the inner side of the door body through the diverter port and the air outlet in sequence.

[0006] In some embodiments of the present application, an air guide is provided at the bottom of the support member, one side of the air guide is connected to the inner side of the diverter port, and the other side of the air guide extends obliquely downward, so as to guide the airflow output from the air outlet to the inner side of the door body; Both ends of the air guide are provided with connecting ends, and the upper parts of the connecting ends are fixed to the bottom of the supporting member.

[0007] In some embodiments of the present application, the windward surface of the flow splitting support portion is arranged to be inclined upward along the flow direction of the airflow, and the leeward surface of the flow splitting support portion is arranged to be inclined downward along the flow direction of the airflow; The diversion support portion is further provided with a grille portion; the grille portion is located between the windward surface and the leeward surface, and at least part of the airflow in the air duct passes through the grille portion and is output from the air outlet.

[0008] In some embodiments of the present application, the diverter valve includes a driving member, a transmission member and a baffle member, the driving member is fixed on the support member, the output end of the driving member is connected to the baffle member through the transmission member, and the baffle member is rotatably connected above the diverter port to control the switch of the diverter port.

[0009] In some embodiments of the present application, the transmission member is a transmission shaft, the first end of the transmission member is connected to the driving member, the second end of the transmission shaft is connected to and fixed to the baffle member, a rotating support portion is provided on the windward surface, the rotating support portion is located at one end of the diversion port close to the grille portion, and the transmission member is rotatably connected to the rotating support portion.

[0010] In some embodiments of the present application, the driving member includes a bracket portion, a power supply portion, a magnetic portion and a driven portion, the bracket portion is fixed on the support member, the power supply portion is connected to the bracket portion or the support member, the magnetic portion is connected to the bracket portion, and the power supply portion is electrically connected to the magnetic portion for controlling the adsorption of the magnetic portion; the driven portion is connected to the transmission member, and the magnetic portion drives the transmission member to rotate along its axis through the driven portion, so as to realize the switch control of the diversion port by the baffle member.

[0011] In some embodiments of the present application, the first end of the transmission member is rotatably connected to the support member via a transmission bracket, a transfer portion is further provided on the transmission member, the driven portion is connected to the transmission member via the transfer portion, and a reset spring is further provided between the transmission bracket and the transfer portion, for driving the transmission member to reset after the adsorption of the magnetic portion disappears.

[0012] In some embodiments of the present application, a reset plate is provided on the bracket portion, and the reset plate and the driven portion are respectively located on both sides of the transmission member; The reset plate is formed with an insertion port, and a plug-in portion extending downward is formed below the driven portion, and the plug-in portion is connected to the insertion port; A connecting lug extending away from the magnetic part is formed above the driven part, a connecting hole is formed on the connecting lug, a connecting shaft is formed on the adapter part, and the connecting shaft is connected to the connecting hole to achieve rotatable connection between the driven part and the adapter part.

[0013] In some embodiments of the present application, along the flow direction of the airflow, a fan component, a frequency converter, and a magnetic supply tube are sequentially arranged in the air duct; The diversion support portion is also provided with a blocking portion, which is located between the magnetic supply tube and the diversion port and is used to prevent the airflow from flowing back to the magnetic supply tube.

[0014] In some embodiments of the present application, it also includes an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an equipment chamber is formed between the upper part of the inner liner and the outer shell, the support member is located at the bottom of the equipment chamber, and a temperature insulation layer is formed between the equipment chamber and the inner liner.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: The microwave oven involved in the present application has a flow divider disposed in the air duct, the flow divider port on the flow divider is controlled to switch by a flow divider valve, and an air inlet is also disposed on the support member, the flow divider port is connected with the air inlet, so that the fan disposed in the air duct can partially transfer the heat generated by working components such as the frequency converter and the magnetic supply tube to the surface of the door body, thereby avoiding the problem of condensation on the door body due to the excessively low surface temperature of the door body in the microwave mode, which is conducive to reducing the cleaning burden of the user and improving the user's use experience; In addition, part of the high-temperature airflow is guided to the door surface through the diverter, which can also reduce the amount of air directly output from the air outlet, improve the safety of the outside of the air outlet, and improve the utilization rate of heat generated by working parts such as the inverter and magnetic supply tube.

[0016] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a partial structural schematic diagram of the microwave oven proposed by the present invention; Figure 2 It is a schematic diagram of the disassembly of the air duct housing, the diverter, the diverter valve and the support; Figure 3 It is a schematic diagram of the location of the air outlet and the air inlet; Figure 4 yes Figure 1 A top view of the structure in ; Figure 5 yes Figure 4 AA section view in; Figure 6 It is a schematic diagram of the installation position of the drive component; Figure 7 This is a schematic diagram of the connection between the diverter valve and the diverter component when the diverter port is closed; Figure 8 This is a schematic diagram of the connection between the diverter valve and the diverter element when the diverter port is open; Fig. 9 It is a schematic diagram of the diverter structure; Fig.10 It is a schematic diagram of the diverter valve structure; Fig.11 yes Fig.10 Schematic diagram of the split flow valve in the figure; Fig.12 It is a schematic diagram of the connection between the transmission member and the baffle member; Fig.13 Schematic diagram of the driven part structure; In the figure, 100, support member; 101, air outlet; 110, air outlet; 120, air guide member; 121, connecting end; 200, air duct housing; 210, first cover plate section; 220, second cover plate section; 230, third cover plate section; 240, connecting legs; 300, diverter valve; 310, driving member; 311, bracket part; 3111, bracket crossbeam; 3112, connecting bottom plate; 3113, reset plate; 3114, plug interface; 312, driven part; 3121, connecting lug; 3122, connecting hole; 3123, plug-in part; 313, magnetic part; 314, transmission bracket; 315, reset spring; 316, power supply part; 320, transmission member; 321, adapter; 3211, connecting shaft; 3212, limiting convex portion; 330, baffle member; 331, reinforcing rib; 400, diverter; 401, diverter port; 410, windward side; 420, leeward side; 430, grille portion; 440, baffle portion; 450, rotation support portion; 451, support recess; 500, fan parts; 600, frequency converter; 700, magnetic supply tube; 800. Door body. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0024] refer to Figure 1-Figure 5 The present application proposes a microwave oven, which includes an outer shell (not shown) and an inner pot (not shown). An installation cavity is formed in the outer shell, and the inner pot is located in the installation cavity. A cooking cavity is formed in the inner pot for cooking food. A door body 800 is provided on the front side of the inner pot for opening or closing the cooking cavity.

[0025] An equipment chamber is formed between the inner shell and the outer shell, and the equipment chamber is used to install working parts such as the frequency converter 600 and the magnetic supply tube 700.

[0026] Since the working parts such as the inverter 600 and the magnetic supply tube 700 will generate heat during operation, an air duct for heat dissipation is also formed in the equipment chamber. The fan component 500, the fan component 500, the inverter 600, and the magnetic supply tube 700 are arranged in the air duct in sequence along the flow direction of the airflow.

[0027] The fan component 500 is used to take away the heat generated by working components such as the inverter 600 and the magnetic supply tube 700, and output it to the outside of the microwave oven or the inside of the door body 800.

[0028] A thermal insulation layer is provided between the inner tank and the equipment chamber to reduce the heat transfer between the equipment chamber and the inner tank.

[0029] A support member 100 is provided at the bottom of the equipment chamber. The support member 100 is specifically a support plate structure, which serves as a supporting base for various working components in the equipment chamber.

[0030] refer to Figure 3 A duct housing 200 is disposed above the support member 100, a duct is formed between the duct housing 200 and the support member 100, an air outlet 101 is formed at one end of the duct, and the air outlet 101 is used to connect the duct with the outside world so that the airflow in the duct can be output to the outside world.

[0031] Combination Fig. 9 A diverter 400 is provided in the air duct. Specifically, the diverter 400 is located on the inner side of the air outlet 101 , that is, the airflow is output from the air outlet 101 after passing through the diverter 400 .

[0032] The flow splitter 400 includes a flow splitter support portion, a flow splitter port 401 is formed on a windward surface 410 of the flow splitter support portion, and an air outlet 110 is formed on the support portion 100 . The air outlet 110 is communicated with the flow splitter port 401 .

[0033] That is, in addition to being directly output from the air outlet 101, the air flow can also be transported downward through the diversion port 401 and output to the inner side of the door body 800 through the air outlet 110, and the door body 800 is heated by using the heat carried in the air flow.

[0034] A diverter valve 300 is also provided on the diverter port 401 for controlling the opening and closing of the diverter port 401 . When the diverter valve 300 is opened, part of the air flow is delivered to the inner side of the door body 800 through the diverter port 401 and the air outlet 110 .

[0035] When the diverter valve 300 is in the closed state, the airflow in the air duct is completely output from the air outlet 101 .

[0036] The air duct housing 200 is specifically an integrally formed structure to facilitate forming, improve production efficiency, and help ensure the sealing of the air duct to avoid gas leakage.

[0037] The side where the air duct housing 200 is connected to the support member 100 is an open structure, and the air duct is directly formed between the air duct housing 200 and the support member 100, which is beneficial to reducing the material cost of the air duct housing 200. The air duct housing 200 includes an air duct side panel that is directly in contact with the support member 100, and the bottom of the air duct side panel is fixedly connected to the support member 100.

[0038] Specific reference Figure 2Specifically, a connecting leg 240 is formed at the bottom of the air duct side plate. The connecting leg 240 is a connecting ear structure formed on the air duct side plate and extending outward in a direction away from the air duct. A through bottom hole is formed thereon. Fasteners such as fastening screws pass through the corresponding bottom holes and are fixed to the support member 100 to achieve the connection and fixation between the air duct housing 200 and the support member 100.

[0039] The air duct housing 200 includes a first cover section 210 , a second cover section 220 and a third cover section 230 along the flow direction of the airflow. The inverter 600 and the fan component 500 are arranged below the first cover section 210 , and the magnetic supply tube 700 is arranged below the second cover section 220 .

[0040] The height of the third cover plate section 230 gradually decreases along the direction of air flow, so that the height of the corresponding air duct at the lower side shrinks, and the airflow is converged and output from the air outlet 101 and the diversion port 401.

[0041] The air duct size corresponding to the lower side of the second cover section 220 is larger to meet the installation requirements of the magnetic supply tube 700. The fan component 500 is an axial flow fan or a cross-flow fan. After it is turned on, the low-temperature airflow formed passes through the inverter 600 and the magnetic supply tube 700 in turn, and the temperature rises to form a high-temperature airflow, which takes away the working heat of the inverter 600 and the magnetic supply tube 700 and is output from the air outlet 101 and the diversion port 401.

[0042] Reinforcing ribs are formed on the outer wall of the air duct housing 200 to improve the structural strength of the air duct housing 200. Wiring grooves and threading holes are also provided thereon to facilitate power supply to working parts such as the magnetic supply tube 700, the inverter 600 and the fan component 500.

[0043] Reference again Figure 2 , Figure 3 An air guide member 120 is provided at the bottom of the support member 100. Specifically, the air guide member 120 is located on the side of the support member 100 close to the door body 800. One side of the air guide member 120 is connected to the inner side of the diversion port 401, and the other side of the air guide member 120 extends downward at an angle, so as to transport the airflow output from the air outlet 110 to the inner side of the door body 800.

[0044] The air guide member 120 is specifically an air guide plate structure. Connecting end portions 121 are provided at both ends of the air guide member 120 , and the upper portion of the connecting end portions 121 is fixed to the bottom of the supporting member 100 .

[0045] The air guide 120 and the connecting end 121 are an integrally formed structure. The connecting end 121 is specifically a bend formed at both ends of the air guide 120 and extending upward. The integral forming method of the air guide 120 and the connecting end 121 can improve its manufacturing efficiency and reduce assembly gaps.

[0046] Reference again Fig. 9 The diversion support part provides a support basis for the diversion of the airflow. Specifically, the windward surface 410 of the diversion support part is arranged to be inclined upward along the flow direction of the airflow, and the leeward surface 420 on the diversion support part is arranged to be inclined downward along the flow direction of the airflow.

[0047] A grille portion 430 is further provided on the flow splitting support portion; the grille portion 430 is located between the windward surface 410 and the leeward surface 420 , and at least part of the airflow in the air duct passes through the grille portion 430 and is output from the air outlet 101 .

[0048] When the diverter valve 300 is closed, the airflow delivered from the upstream of the air duct passes through the windward surface 410 , the grille portion 430 and the leeward surface 420 of the diverter support portion and is then output from the air outlet 101 .

[0049] The connection between the windward surface 410 and the leeward surface 420 is a smooth transition to reduce the resistance to the airflow. The bottom of the grille portion 430 is supported on the diversion support portion, and the top thereof is in contact with and connected to the inner wall of the air duct housing 200 to separate the outside world from the air duct and prevent external impurities from entering the air duct and affecting the operation of the working components in the air duct.

[0050] The grille portion 430 includes a plurality of grille plates arranged horizontally and vertically, and vents for air flow to pass through are formed between the grille plates.

[0051] refer to Figure 7 , Figure 8 , Fig.10 , Fig.11 The diverter valve 300 includes a driving member 310, a transmission member 320 and a baffle member 330. The driving member 310 is fixed on the support member 100. The output end of the driving member 310 is connected to the baffle member 330 through the transmission member 320. The baffle member 330 can be rotatably connected above the diverter port 401 to control the switch of the diverter port 401.

[0052] The transmission member 320 is a transmission shaft, the first end of the transmission member 320 is connected to the driving member 310, the baffle member 330 is arranged at the second end of the transmission shaft, and a reinforcing rib 331 is formed between the baffle member 330 and the transmission member 320, and the reinforcing rib 331 can play a role in improving the connection strength between the baffle member 330 and the transmission shaft.

[0053] A rotation support portion 450 is disposed on one side of the windward surface 410 close to the grille portion 430 , and the transmission member 320 is rotatably connected to the rotation support portion 450 .

[0054] The rotation support parts 450 are specifically arranged on both sides of the windward surface 410 along the extension direction of the transmission member 320 to achieve stable support for the transmission member 320 .

[0055] Combination Fig. 9A support recess 451 opening upward is formed on the rotation support portion 450 , and the transmission member 320 can be rotatably connected in the support recess 451 .

[0056] The rotating support portion 450 is located above the diversion port 401, that is, located at one end of the diversion port 401 close to the grille portion 430. The baffle member 330 flips downward to contact the windward surface 410 to close the diversion port 401, and the transmission member 320 drives the baffle member 330 to flip upward to open the diversion port 401.

[0057] In some embodiments of the present application, the driving member 310 may be a driving motor, and the output end of the driving member 310 is connected to the transmission member 320, driving the transmission member 320 to rotate within a certain angle range, thereby driving the baffle member 330 to switch.

[0058] In some other embodiments, the driving member 310 includes a bracket portion 311 , a power supply portion 316 , a magnetic portion 313 and a driven portion 312 .

[0059] The power supply part 316 is electrically connected to the magnetic part 313 for supplying power to the magnetic part 313. When the power supply part 316 is connected to the magnetic part 313, the magnetic part 313 is charged. When the power supply part 316 is disconnected from the magnetic part 313, the magnetism of the magnetic part 313 disappears.

[0060] The bracket part 311 is fixed on the support member 100 . Specifically, the bracket part 311 is fixed on the support member 100 through the vertical frames on both sides. A connecting base plate 3112 is provided at the bottom of the vertical frame. The fastener fixes the bracket part 311 on the support member 100 through the connecting base plate 3112 .

[0061] A back plate is formed between the upright frames, and a reset plate 3113 extending toward the transmission member 320 is formed on the back plate. The reset plate 3113 is formed integrally with the back plate, and is specifically a bend of the back plate extending forward.

[0062] The power supply part 316 is connected to the bracket part 311 or the support member 100 , and the magnetic part 313 is connected to the bracket part 311 . The power supply part 316 is electrically connected to the magnetic part 313 to control the adsorption of the magnetic part 313 .

[0063] That is, when the power supply part 316 is connected to the magnetic part 313, the magnetic part 313 is charged and has magnetism, and can drive the transmission part 320 to rotate around its own axis under the action of the follower, thereby driving the baffle part 330 to open or close the diversion port 401.

[0064] The driven part 312 is hinged to the transmission member 320 , and is made of a material such as metal that can be adsorbed by the magnetic part 313 . The number of the magnetic part 313 can be one or more according to its own adsorption performance.

[0065] The first end of the transmission member 320 is rotatably connected to the support member 100 via the transmission bracket 314 . The adapter 321 is a adapter arm structure disposed on the transmission member 320 . The adapter 321 is hinged to the driven portion 312 .

[0066] A reset spring 315 is also provided between the transmission bracket 314 and the adapter part 321, and the driving member 310 is configured as follows: under the action of the magnetic force, the magnetic part 313 causes the upper direction of the driven part 312 to move closer to the direction of the magnetic part 313, driving the transmission member 320 to rotate at an angle, so as to open the diversion port 401; after the magnetic force of the magnetic part 313 disappears, the driven part 312 is reset under the action of the reset plate 3113 and the reset spring 315, driving the transmission member 320 to reset, so as to close the diversion port 401.

[0067] Take the case where the magnetic part 313 is disposed at an obliquely upward position of the transmission member 320 and the magnetic part 313 adsorbs the upper end of the driven part 312 as an example: A bracket beam 3111 is formed above the bracket portion 311, and the magnetic portion 313 is connected to the bracket beam 3111. After the magnetic portion 313 is energized, the upper side of the follower is attracted and rotates toward the magnetic portion 313. During the rotation of the follower, the transmission member 320 is driven to rotate under the action of the adapter.

[0068] In addition, a reset plate 3113 is formed on the lower side of the bracket portion 311, and the reset plate 3113 is connected to the lower end of the follower. When the follower rotates due to the adsorption of the magnetic portion 313, the lower end of the follower can drive the reset plate 3113 to move along a certain route. When the magnetic force disappears, the reset plate 3113 cooperates with the reset spring 315 to reset the follower.

[0069] The reset plate 3113 plays a role of buffering and limiting during the reset process of the driven part 312, to prevent the return force of the reset spring 315 from being too large after the adsorption effect of the magnetic part 313 on the driven part 312 disappears, causing the driven part 312 to move too quickly or exceed the original position, causing a malfunction.

[0070] Of course, the position of the magnetic part 313 is not limited to the upward position of the transmission member 320. It can also be set at the downward position of the transmission member 320, as long as the direction in which the magnetic part 313 drives the transmission member 320 to rotate after being energized is sufficient to enable the baffle member 330 to open the diverter port 401.

[0071] Specifically, when the microwave oven starts the microwave function, the controller set in the microwave oven controls the power supply part 316 to connect with the magnetic part 313, so that the magnetic part 313 is charged. The charged magnetic part 313 attracts the driven part 312 with the axis of the transmission part 320 as the rotation axis so that the upper part of the driven part 312 is close to the magnetic part 313. At the same time, the lower direction of the driven part 312 moves forward away from the bracket part 311.

[0072] The rotation of the driven member drives the transmission member 320 to rotate, thereby realizing the upward flipping of the baffle member 330, opening the diversion port 401, so that the heat generated by the operation of the inverter 600, the magnetic supply tube 700, etc. is transported to the inner side of the door body 800 through the diversion port 401 and the air outlet 110 under the guidance of the air guide plate.

[0073] When the microwave function of the microwave oven stops, the controller controls the fan component 500 to shut down, the power supply component 316 and the magnetic component 313 are powered off, the magnetism of the magnetic component 313 disappears, and the driven component 312 rotates and resets under the action of the reset plate 3113 and the reset spring 315. Under the action of the driven component 312, the transmission component 320 drives the baffle component 330 to close, and closes the diversion port 401 to prevent foreign matter from entering the air duct from the diversion port 401.

[0074] Combination Fig.11 , Fig.13 In some embodiments of the present application, the reset plate 3113 and the lower end of the driven part 312 are connected by plugging. Specifically, a plug-in port 3114 is formed on the reset plate 3113, and a plug-in portion 3123 extending downward is formed below the driven part 312, and the plug-in portion 3123 is connected to the plug-in port 3114.

[0075] A connecting lug 3121 extending away from the magnetic portion 313 is formed above the driven portion 312 . There are two connecting lugs 3121 , which are correspondingly arranged on both sides of the driven portion 312 . The number of the adapter portions 321 is the same as that of the connecting lugs 3121 , which are respectively connected to the corresponding connecting lugs 3121 .

[0076] A connecting hole 3122 is formed on the connecting lug 3121 , a connecting shaft 3211 is formed on the adapter portion 321 , and the connecting shaft 3211 is connected to the connecting hole 3122 to achieve rotatable connection between the driven portion 312 and the adapter portion 321 .

[0077] In order to further limit the connecting shaft 3211 and prevent the connecting shaft 3211 from escaping from the connecting hole 3122 on the connecting lug 3121, a limiting protrusion 3212 extending along its radial direction is designed to be formed on the connecting shaft 3211, and an installation notch matching the size of the limiting protrusion 3212 is also formed on the connecting hole 3122. After the connecting shaft 3211 on the adapter is inserted into the connecting hole 3122, it is rotated until the limiting protrusion 3212 on it is misaligned with the installation notch, thereby achieving the purpose of limiting.

[0078] The diversion support portion is also provided with a blocking portion 440, which is a vertical plate structure vertically arranged at the air inlet end of the diversion support portion. Its specific position is between the magnetic supply tube 700 and the diversion port 401, and is located on one side of the diversion port 401. It can block the airflow from flowing back to the magnetic supply tube 700, avoiding heat reflux which is not conducive to the cooling of the magnetic supply tube 700.

[0079] Since the microwave oven has the function of microwave heating as well as the heating tube heating function of a traditional oven, when the microwave oven starts other cooking modes other than microwave, although the inverter 600 and the magnetic supply tube 700 are not working, the support member 100 will also be affected by the cooking heating and other working parts to generate heat. In this mode, the controller controls the fan member 500 to turn on, the power supply part 316 and the magnetic part 313 remain disconnected, the diversion port 401 is in a closed state, and all the heat in the air duct can be dissipated through the air outlet 101.

[0080] A control panel is also provided on the outer shell of the microwave oven. The control panel is used to facilitate the user to select the working mode of the microwave oven. The control panel is connected to the controller signal. The controller controls the switch of the diverter valve 300 according to the user's selection of the working mode.

[0081] Below, the heat dissipation forms in different modes of the microwave oven are specifically described: Microwave ovens are divided into microwave working mode and non-microwave heating mode. The non-microwave heating mode includes heating tube heating and other modes.

[0082] When the microwave heating mode starts, the controller controls the fan component 500, the inverter 600 and the magnetic supply tube 700 to turn on, and connects the power supply part 316 with the magnetic part 313, so that the magnetic part 313 is charged. The charged magnetic part 313 absorbs the driven part 312 to drive the transmission part 320 to rotate, thereby realizing the upward flipping of the baffle component 330 and opening the diversion port 401, so that part of the heat generated by the inverter 600, the magnetic supply tube 700, etc. is output from the air outlet 101 through the grille part 430, and the other part is transported to the inner side of the door body 800 through the diversion port 401 and the air outlet 110 under the guidance of the air guide plate to heat the door body 800 to prevent the door body 800 from being too cold and condensation from forming on its surface, which will cause a burden for the user to clean it later.

[0083] When the microwave function of the microwave oven stops, the controller controls the fan component 500 to shut down after a preset time (to output the residual heat), the power supply part 316 and the magnetic part 313 are powered off, the magnetism of the magnetic part 313 disappears, and the driven part 312 rotates and resets under the action of the reset plate 3113 and the reset spring 315. Under the action of the driven part 312, the transmission part 320 drives the baffle component 330 to close, and closes the diversion port 401 to prevent foreign matter from entering the air duct from the diversion port 401.

[0084] In non-microwave heating mode, the controller controls the fan component 500 to turn on, and the support component 100 and other working parts generate heat output. In this mode, the power supply part 316 and the magnetic part 313 remain disconnected, the diversion port 401 is in a closed state, and all the heat in the air duct can be dissipated to the outside through the air outlet 101.

[0085] The microwave oven involved in the present application is provided with a diverter member 400 in the air duct, and the diverter port 401 on the diverter member 400 is controlled to switch through the diverter valve 300. An air inlet 110 is also provided on the support member 100. The diverter port 401 is connected with the air inlet 110, and part of the high-temperature airflow in the air duct can be transported to the surface of the door body 800. Specifically, in the microwave working mode, the fan member 500 arranged in the air duct can transport part of the heat generated by the working components such as the inverter 600 and the magnetic supply tube 700 to the surface of the door body 800, so as to avoid the formation of condensation on the door body 800 due to the excessively low surface temperature of the door body 800 in the microwave mode, which is beneficial to reduce the cleaning burden of the user and improve the user's usage experience.

[0086] In addition, part of the high-temperature airflow is guided to the surface of the door body 800 through the diverter 400, which can also reduce the amount of air directly output from the air outlet 101, improve the safety of the outside of the air outlet 101, and improve the heat utilization rate generated by working components such as the inverter 600 and the magnetic supply tube 700.

[0087] Wherever possible, the various aspects and features described and shown in the specification may be applied separately and these separate aspects may be made the subject of divisional applications.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A microwave oven, characterized in that: include: Supports; An air duct housing is connected to the support member, an air duct is formed between the air duct housing and the support member, and an air outlet communicating with the outside is formed at one end of the air duct; A flow divider is arranged in the air duct and located inside the air outlet. The flow divider comprises a flow divider support portion. A flow divider port is formed on the windward surface of the flow divider support portion. An air passage is formed on the support portion. The air passage port is connected to the flow divider port. A diverter valve is connected to the diverter port and is used to control the switch of the diverter port. When the diverter valve is in the open state, part of the air flow output from the air duct is transported to the inner side of the door body through the diverter port and the air outlet in sequence.

2. The microwave oven according to claim 1, characterized in that: An air guide is provided at the bottom of the support member, one side of the air guide is connected to the inner side of the diversion port, and the other side of the air guide extends downwardly and is used to guide the airflow output from the air outlet to the inner side of the door body; Both ends of the air guide are provided with connecting ends, and the upper parts of the connecting ends are fixed to the bottom of the supporting member.

3. The microwave oven according to claim 1, characterized in that: The windward surface of the flow splitting support portion is arranged to be inclined upward along the flow direction of the airflow, and the leeward surface of the flow splitting support portion is arranged to be inclined downward along the flow direction of the airflow; The diversion support portion is further provided with a grille portion; the grille portion is located between the windward surface and the leeward surface, and at least part of the airflow in the air duct passes through the grille portion and is output from the air outlet.

4. The microwave oven according to claim 3, characterized in that: The diverter valve includes a driving member, a transmission member and a baffle member. The driving member is fixed on the supporting member. The output end of the driving member is connected to the baffle member through the transmission member. The baffle member is rotatably connected above the diverter port to control the switch of the diverter port.

5. The microwave oven according to claim 4, characterized in that: The transmission member is a transmission shaft, the first end of which is connected to the driving member, the second end of which is connected to and fixed to the baffle member, a rotating support portion is provided on the windward surface, the rotating support portion is located at one end of the diversion port close to the grille portion, and the transmission member is rotatably connected to the rotating support portion.

6. The microwave oven according to claim 5, characterized in that: The driving member includes a bracket part, a power supply part, a magnetic part and a driven part. The bracket part is fixed on the support member, the power supply part is connected to the bracket part or the support member, the magnetic part is connected to the bracket part, and the power supply part is electrically connected to the magnetic part for controlling the adsorption of the magnetic part; the driven part is connected to the transmission member, and the magnetic part drives the transmission member to rotate along its axis through the driven part to realize the switch control of the diversion port by the baffle member.

7. The microwave oven according to claim 6, characterized in that: The first end of the transmission member is rotatably connected to the support member via a transmission bracket, a transfer portion is also provided on the transmission member, the driven portion is connected to the transmission member via the transfer portion, and a reset spring is also provided between the transmission bracket and the transfer portion for driving the transmission member to reset after the adsorption of the magnetic portion disappears.

8. The microwave oven according to claim 7, characterized in that: A reset plate is provided on the bracket portion, and the reset plate and the driven portion are respectively located on both sides of the transmission member; The reset plate is formed with an insertion port, and a plug-in portion extending downward is formed below the driven portion, and the plug-in portion is connected to the insertion port; A connecting lug extending away from the magnetic part is formed above the driven part, a connecting hole is formed on the connecting lug, a connecting shaft is formed on the adapter part, and the connecting shaft is connected to the connecting hole to achieve rotatable connection between the driven part and the adapter part.

9. The microwave oven according to any one of claims 1 to 8, characterized in that: Along the flow direction of the airflow, a fan component, a frequency converter and a magnetic supply pipe are sequentially arranged in the air duct; The diversion support portion is also provided with a blocking portion, which is located between the magnetic supply tube and the diversion port and is used to prevent the airflow from flowing back to the magnetic supply tube.

10. The microwave oven according to any one of claims 1 to 8, characterized in that: It also includes an outer shell and an inner liner, wherein the inner liner is arranged in the outer shell, and an equipment chamber is formed between the upper part of the inner liner and the outer shell, the support is located at the bottom of the equipment chamber, and a temperature insulation layer is formed between the equipment chamber and the inner liner.

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