Cooking apparatus

Abstract

The application relates to a cooking equipment which comprises a box body, a door body, a first air duct, a first fan assembly and a magnetron, the box body is internally provided with a cooking cavity with an open front side; the door body is connected with the box body for opening and closing the cooking cavity, a cooling air duct is arranged in the door body, and an air inlet is arranged on the edge of the door body and communicated with the cooling air duct; the first air duct is provided with a first air inlet and a first air outlet; the first air inlet is communicated with the cooling air duct; the first fan assembly is used for driving airflow to flow; and the magnetron is arranged at the first air outlet. The magnetron is arranged at the air outlet, so that the cold air entering from the air inlet on the door body can cool the magnetron, the temperature of the magnetron is reduced, the service life of the magnetron is guaranteed, and the magnetron is prevented from being affected by high temperature. The airflow is sucked through the cooling air duct, the airflow is prevented from being affected by the heating high temperature of the box body, and the airflow is guaranteed to be at a lower temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a cooking device. BACKGROUND

[0002] With the improvement of living standards, built-in ovens gradually enter the homes of ordinary people. The built-in oven not only makes the kitchen more tidy, but also saves more operating space on the countertop. However, in the process of baking food, the heating pipe in the oven liner generates a large amount of heat, which is transmitted to the outside of the oven and the cabinet. The high temperature diffused out is easy to cause damage to various electrical components such as magnetrons, frequency conversion power supplies, etc. near the cabinet and the liner, affecting their service life. SUMMARY

[0003] Therefore, it is necessary to provide a cooking device with more efficient cooling in view of the above problems.

[0004] A cooking device includes a cabinet, a door body, a first air duct, a first fan assembly, and a magnetron. The cabinet is internally provided with a cooking cavity with an open front side. The door body is connected to the cabinet to open and close the cooking cavity. A cooling air duct is formed in the door body, and an air inlet is formed in the edge of the door body and communicates with the cooling air duct. The first air duct has a first air inlet and a first air outlet. The first air inlet communicates with the cooling air duct. The first fan assembly includes a first motor and a first fan blade. The first fan blade is arranged in the first air duct, and the first fan assembly is used to drive airflow. The magnetron is arranged at the first air outlet.

[0005] In one embodiment, a partition plate is arranged in the door body, which divides the door body into the cooling air duct and a heat insulation space. The cooling air duct is located at the front side of the partition plate, and the heat insulation space is located at the rear side of the partition plate and is arranged close to the cooking cavity.

[0006] In one embodiment, the cabinet has an air outlet that communicates with the outside air. A second air duct is further formed above the cooking cavity. The second air duct has a second air inlet and a second air outlet. The second air outlet communicates with the air outlet. The magnetron has a heat dissipation channel that penetrates through both sides. The first air outlet communicates with one side of the heat dissipation channel, and the second air inlet communicates with the other side of the heat dissipation channel.

[0007] In one embodiment, the cooking device further includes a mounting plate and a first air guide cover assembly. The mounting plate is arranged above the cooking cavity, and the first air guide cover assembly is arranged on the mounting plate and surrounds the first air duct with the mounting plate. The first fan blade is arranged in the first air guide cover assembly.

[0008] In one of the embodiments, the first air guide cover assembly comprises a first air guide part and a second air guide part, the first air guide part is covered on the mounting plate, the first air guide part is communicated with the cooling air duct of the door body through the first air inlet, the top of the first air guide part is provided with a first air guide opening, the head of the second air guide part is covered on the first air guide opening, the second air guide part is communicated with the first air guide part through the first air guide opening, the first air outlet is located on the tail of the second air guide part, and the first fan assembly is arranged at the first air guide opening.

[0009] In one of the embodiments, the cooking device further comprises a second air guide cover assembly and a second fan assembly, the second air guide cover assembly is arranged on the mounting plate, and the second air duct is formed in the second air guide cover assembly; the second air guide cover assembly comprises a third air guide part and a fourth air guide part, the third air guide part is covered on the mounting plate, one end of the third air guide part is an air suction opening facing the magnetron, the other end of the third air guide part is provided with a third air guide opening at the top, the tail of the fourth air guide part is provided with a fourth air guide opening, the fourth air guide opening is arranged above the third air guide opening in a spaced manner, an air inlet gap is formed between the fourth air guide opening and the third air guide opening, the front end of the fourth air guide part is communicated with the air outlet, the first air guide part and the fourth air guide part are arranged in a spaced manner, the second fan assembly is arranged at the connection between the third air guide opening and the fourth air guide opening, the second fan assembly comprises a second motor and a second fan blade, the second motor is arranged in one of the third air guide opening and the fourth air guide part, and the second fan blade is arranged in the other one of the third air guide opening and the fourth air guide part.

[0010] In one of the embodiments, the fourth air guide part is fixed on the third air guide part, sockets are arranged in a circumferential distribution at the edge of the third air guide opening, and plug columns corresponding to the sockets are arranged at the edge of the fourth air guide opening, the plug columns are inserted into the sockets; the second fan assembly comprises a second connecting plate, a second fan blade and a second motor, the second connecting plate is fixed below the fourth air guide opening, buckles are further arranged at the edge of the fourth air guide opening, the second connecting plate is provided with tabs and arc-shaped notches at positions corresponding to the buckles and the plug columns respectively, the tabs are clamped on the buckles, the plug columns are located in the arc-shaped notches, the second motor is arranged below the second connecting plate, and the second fan blade is arranged above the second connecting plate and is coaxially connected with the second motor.

[0011] In one of the embodiments, the box has a shell, the cooking cavity is located in the shell, a rear heat insulation plate is arranged behind the cooking cavity, the shell comprises a shell bottom plate and a shell rear plate, the shell bottom plate and the cavity bottom plate form a first air guide channel, the shell rear plate and the rear heat insulation plate form a second air guide channel, and the first air guide channel, the second air guide channel and the second air duct are sequentially communicated.

[0012] Further, the cooking device further comprises a third fan assembly arranged on the heat insulation plate, the third fan assembly comprises a third motor and a third fan blade, and the third motor is located in the second air guide channel.

[0013] In one of the embodiments, the cooking device further comprises a water tank assembly, the water tank assembly comprises a water tank seat and a water tank which is slidingly connected to the water tank seat, a micro switch and a rotating motor are arranged on the rear side of the water tank seat, a rotating plate is coaxially connected to the rotating motor, and the micro switch is arranged adjacent to the rotating plate.

[0014] In one of the embodiments, the cooking device further comprises a communication pipe, an exhaust hole which is communicated with the inside of the cooking cavity is arranged on the rear wall of the cooking cavity, one end of the communication pipe is connected to the exhaust hole, and the other end of the communication pipe is connected to the tail of the fourth air guide part and communicated with the second air duct.

[0015] In one of the embodiments, the cooking device further comprises a variable frequency power supply, and the variable frequency power supply is arranged in the second air guide part.

[0016] In use, the first fan assembly can drive the airflow to flow, and because the first air duct and the cooling air duct are communicated through the first air inlet, the cold air outside the cooking device can enter the cooling air duct from the air inlet, then enter the first air duct through the first air inlet, and be discharged from the first air outlet. The magnetron is arranged at the first air outlet, so that the cold air entering the air inlet on the door body can cool the magnetron, reduce the temperature of the magnetron, and ensure that the magnetron will not be affected by high temperature, thereby ensuring the service life of the magnetron. The air inlet is arranged on the door body, and the airflow is sucked through the cooling air duct in the door body, which can avoid the influence of the heating high temperature of the box on the airflow, ensure that the airflow is stable at a lower temperature, and effectively cool the magnetron. Further, the service life of the cooking device is ensured. At the same time, the cooling air duct in the door body can also heat insulate and cool the door body to some extent, so as to ensure that the user will not be scalded when contacting the door body, further improve the comfort, safety and reliability of the cooking device. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0019] Figure 1 This is a schematic diagram of the structure of a cooking device in one embodiment;

[0020] Figure 2 for Figure 1 A cross-sectional view of the cooking equipment in the embodiment;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the top of the box in the embodiment;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of the first air guide shroud assembly in the embodiment;

[0023] Figure 5 for Figure 4 Exploded view of the first air guide shroud assembly in the embodiment;

[0024] Figure 6 for Figure 3 A schematic diagram of the structure of the second air guide shroud assembly in the embodiment;

[0025] Figure 7 for Figure 6 Exploded view of the second air guide shroud assembly in the embodiment;

[0026] Figure 8 for Figure 3 A schematic diagram of the magnetron and waveguide box in the embodiment;

[0027] Figure 9 for Figure 8 Exploded view of the magnetron and waveguide box in the embodiment;

[0028] Figure 10 for Figure 8 Cross-sectional view of the magnetron and waveguide box in the embodiment;

[0029] Figure 11 for Figure 1 A schematic diagram of the water tank in the embodiment.

[0030] The components in the diagram are labeled as follows:

[0031] 10, cooking equipment; 100, cabinet; 110, first air guide cover assembly; 111, first air guide part; 112, second air guide part; 113, first air outlet; 114, first air guide outlet; 115, second air guide outlet; 116, first air inlet; 120, first air duct; 130, second air guide cover assembly; 131, third air guide part; 132, fourth air guide part; 133, third air guide outlet; 134, fourth air guide outlet; 135, air outlet; 140, second air duct; 150, first air guide passage; 151, front plate of shell; 152, bottom plate of shell; 153, rear plate of shell; 154, second air guide passage; 155, rear heat insulation plate; 156, exhaust hole; 157, communication pipe; 160, cooking cavity; 170, first through hole; 180, second through hole; 200, first fan assembly; 210, first fan blade; 220, first motor; 230, first connecting plate; 300, door body; 310, cooling air duct; 311, air inlet; 320, heat insulation space; 330, partition plate; 400, second fan assembly; 410, second fan blade; 420, second motor; 430, second connecting plate; 500, third fan assembly; 600, mounting plate; 610, third through hole; 700, magnetron; 710, microwave emitter; 800, waveguide box; 810, stirring motor; 820, stirring blade; 830, microwave outlet; 840, microwave inlet; 850, connecting plate; 900, water tank seat; 910, water tank; 920, rotating plate; 930, rotating motor; 940, micro switch. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to give a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0033] Reference is made to Figure 1 , Figure 2 and Figure 4The cooking device 10 in an embodiment includes a cabinet 100, a first air duct 120, a first fan assembly 200, a door body 300, and a magnetron 700. The cabinet 100 is internally provided with a cooking cavity 160 with an open front side. The door body 300 is connected to the cabinet 100 to open and close the cooking cavity 160. The door body 300 is internally provided with a cooling air duct 310. The door body 300 is provided with an air inlet 311 in communication with the cooling air duct 310. The first air duct 120 has a first air inlet 116 and a first air outlet 113. The first air inlet 116 is in communication with the cooling air duct 310. The first fan assembly 200 includes a first motor 220 and a first fan blade 210. The first fan blade 210 is arranged in the first air duct 120. The first fan assembly 200 is used to drive airflow. The magnetron 700 is arranged at the first air outlet 113.

[0034] In use of the cooking device 10, the first fan assembly 200 can drive airflow. Since the first air duct 120 and the cooling air duct 310 are in communication through the first air inlet 116, cold air outside the cooking device 10 can enter the cooling air duct 310 through the air inlet 311, then enter the first air duct 120 through the first air inlet 116, and be discharged from the first air outlet 113. The magnetron 700 arranged at the air outlet can cool the magnetron 700, reduce the temperature of the magnetron 700, and ensure that the magnetron 700 is not affected by high temperature, thereby ensuring the service life of the magnetron 700. The air inlet 311 is arranged on the door body 300, and the airflow is sucked through the cooling air duct 310 of the door body 300, which can avoid the airflow being affected by the high temperature of the cabinet 100, ensure that the airflow is stable at a lower temperature, and effectively cool the magnetron 700. Further, the service life of the cooking device 10 is ensured. Meanwhile, the cooling air duct 310 in the door body 300 can also heat-insulate and cool the door body 300 to a certain extent, so that the user will not be scalded when touching the door body 300, and the comfort, safety, and reliability of the cooking device 10 are further improved.

[0035] The traditional embedded oven usually sets a first air inlet 116 on the back plate 153 or the side plate or the bottom plate 152 of the oven shell when dissipating heat from the magnetron 700. The external cooling air enters from the first air inlet 116 and then flows to the magnetron 700 to dissipate heat. However, the embedded oven is placed in a cabinet, and the cooling air temperature of the side and tail of the oven is higher than that of the front of the oven. The cooling air has poor heat dissipation effect. In addition, the gap between the oven and the cabinet is small, which easily causes problems such as poor air inlet and small air inlet. At the same time, the top, bottom and tail of the oven cavity are usually provided with heating pipes. The cooling air of the traditional oven enters from the door body 300 and then flows to the magnetron 700 through a long path. The cooling air absorbs heat near the cavity when flowing near the cavity, and the temperature becomes high, which reduces the heat dissipation effect of the magnetron 700. In the embodiment, the cooling air duct 310 is arranged in the door body 300, which effectively ensures that the airflow is in a low-temperature state. The first air duct 120 is arranged at the top of the box body 100, and the first air outlet 113 is arranged beside the magnetron 700, so that the airflow can effectively cool and cool the magnetron 700, and the heat dissipation effect of the magnetron 700 is ensured.

[0036] Referring to Figure 1 and Figure 2 In one embodiment, the door body 300 is provided with a partition plate 330, and the partition plate 330 divides the door body 300 into a cooling air duct 310 and a heat insulation space 320. The cooling air duct 310 is located on the front side of the partition plate 330, and the heat insulation space 320 is located on the rear side of the partition plate 330 and close to the cooking cavity 160. The cooking cavity 160 generates a large amount of high temperature when heating. The heat insulation space 320 is formed on the side of the door body 300 close to the cooking cavity 160, which can effectively block the high temperature in the cooking cavity 160 from being transmitted to the cooling air duct 310 on the outside of the door body 300, reduce the temperature of the door plate on the outside of the door body 300, prevent the temperature on the outside of the door body 300 from being too high to scald the user, and ensure the use comfort and safety of the cooking equipment 10. At the same time, the cooling air duct 310 is located on the side of the door body 300 away from the cooking cavity 160, which reduces the heat transfer from the cooking cavity 160 to the cooling air duct 310, ensures that the cooling air still maintains a low temperature after flowing through the cooling air duct 310, and directly blows to the magnetron 700 after flowing through the cooling air duct 310 and the first air duct 120, which greatly improves the heat dissipation effect of the cooling air on the magnetron 700.

[0037] In one embodiment, the box has an air outlet 135 in communication with external air, a second air duct 140 is further formed above the cooking cavity 160, the second air duct 140 has a second air inlet and a second air outlet, the second air outlet is in communication with the air outlet 135, the magnetron 700 has a heat dissipation channel penetrating through two sides, the first air outlet 113 is in communication with one side of the heat dissipation channel, and the second air inlet is in communication with the other side of the heat dissipation channel.

[0038] Referring to Figure 2 , Figure 3 and Figure 4 , in one embodiment, the cooking device 10 further comprises a mounting plate 600 and a first air baffle assembly 110, the mounting plate 600 is arranged above the cooking cavity 160, the first air baffle assembly 110 is arranged on the mounting plate 600 and surrounds the mounting plate 600 to form the first air duct 120, and the first fan blade 210 is arranged in the first air baffle assembly 110. The width dimension of the first air baffle assembly 110 in the airflow direction tends to decrease from the first air inlet 116 to the first air outlet 113. The first air baffle assembly 110 can make the air volume more concentrated, and the magnetron 700 is arranged at one end of the first air baffle assembly 110 where the first air outlet 113 is arranged. The airflow gathered by the first air baffle assembly 110 can more stably and concentratedly cool the magnetron 700.

[0039] Referring to Figure 2 , Figure 4 and Figure 5 , in one embodiment, the first air baffle assembly 110 comprises a first air baffle part 111 and a second air baffle part 112, the first air baffle part 111 is arranged on the mounting plate 600, the first air baffle part 111 is in communication with the cooling air duct 310 of the door body 300 through the first air inlet 116, the top of the first air baffle part 111 is provided with the first air outlet 114, the head of the second air baffle part 112 is arranged on the first air outlet 114, the second air baffle part 112 is in communication with the first air baffle part 111 through the first air outlet 114, the first air outlet 113 is located on the tail of the second air baffle part 112, and the first fan assembly 200 is arranged at the first air outlet 114. The first air baffle part 111 and the second air baffle part 112 are arranged in layers, which is conducive to the airflow and also ensures the miniaturization of the cooking device 10, and improves the structural rationality and practicality of the cooking device 10.

[0040] Referring to Figure 4 and Figure 5In one embodiment, the first air guide part 111 is provided with a limiting column at one end of the first air guide opening 114. The second air guide part 112 is provided with a limiting groove at one end of the second air guide opening 115. The limiting column can be arranged in the limiting groove and abut against the inner wall of the limiting groove. The buckle and the protrusion are matched to ensure that the assembly between the first air guide part 111 and the second air guide part 112 is more stable. It is also convenient to disassemble, clean and maintain the first air guide part 111. At the same time, the limiting column can ensure that the first air guide part 111 and the second air guide part 112 can be more accurate and fast when assembled. The structural practicability of the cooking equipment 10 is improved, which is convenient for subsequent use and maintenance, and is conducive to prolonging the service life of the cooking equipment 10. Specifically, the number of buckles is at least two, and the number of protrusions corresponds to the number of buckles. Multiple buckles can improve the stability of the assembly between the first air guide part 111 and the second air guide part 112.

[0041] Referring to Figure 2 , Figure 3 and Figure 6In one embodiment, the cooking device 10 further comprises a second air guide cover assembly 130 and a second fan assembly 400. The second air guide cover assembly 130 is arranged on the mounting plate 600, and a second air duct 140 is formed in the second air guide cover assembly 130. The second air guide cover assembly 130 comprises a third air guide part 131 and a fourth air guide part 132. The third air guide part 131 is arranged on the mounting plate 600. One end of the third air guide part 131 is an air suction port facing the magnetron 700. A third air guide port 133 is arranged at the top of the other end of the third air guide part 131. A fourth air guide port 134 is arranged at the tail of the fourth air guide part 132. The fourth air guide port 134 is arranged above the third air guide port 133 in a spaced manner. An air inlet gap is formed between the fourth air guide port 134 and the third air guide port 133. The front end of the fourth air guide part 132 is in communication with the air outlet 135. The first air guide part 111 and the fourth air guide part 132 are arranged in a spaced manner. The second fan assembly 400 is arranged at the connection between the third air guide port 133 and the fourth air guide port 134. The second fan assembly 400 comprises a second motor 420 and a second fan blade 410. The second motor 420 is arranged in one of the third air guide port 133 and the fourth air guide part 132. The second fan blade 410 is arranged in the other one of the third air guide port 133 and the fourth air guide part 132. The air suction port of the second air duct 140 is arranged at the first air outlet 113 of the magnetron 700 away from the first air duct 120. The second fan assembly 400 can make the airflow in the second air duct 140 flow. The second air duct 140 can draw away the high-temperature airflow near the magnetron 700 through the air suction port, thereby reducing the temperature of the magnetron 700. At the same time, since the first air outlet 113 and the air suction port are arranged on the opposite sides of the magnetron 700, the airflow blown out of the first air outlet 113 absorbs the temperature of the magnetron 700, and is then drawn into the second air duct 140 by the air suction port and discharged to the outside of the cabinet 100. The cooling efficiency of the magnetron 700 is improved, and the cooling effect of the magnetron 700 is further ensured. The width dimension of the second air guide cover assembly 130 in the direction of the airflow tends to increase from the air suction port to the air outlet 135. The second air guide cover assembly 130 can ensure that the second fan assembly 400 accurately draws the airflow around the magnetron 700, and ensure the heat dissipation efficiency of the magnetron 700. The fourth air guide part 132 is arranged on the first air duct 120. The fourth air guide part 132 and the first air duct 120 are arranged in a stacked manner. The heat dissipation efficiency of the magnetron 700 is ensured, the airflow is facilitated to flow, the miniaturization of the cooking device 10 is ensured, and the structural rationality and practicality of the cooking device 10 are improved.

[0042] Specifically, as shown in FIG. 1, Figures 1 to 3 the first air guide part 111, the second air guide part 112, the third air guide part 131, and the fourth air guide part 132 are arranged in a stacked manner. The airflow is ensured to flow smoothly, the miniaturization and practicality of the cooking device 10 are ensured, and the heat dissipation efficiency of the magnetron 700 is ensured.

[0043] In one embodiment, the fourth air guide part 132 is fixed on the third air guide part 131, and the third air guide part 131 is provided with sockets distributed in a circumferential direction at the edge of the third air guide opening 133, and the fourth air guide part 132 is provided with columns corresponding to the sockets at the edge of the fourth air guide opening 134, and the columns are inserted into the sockets.

[0044] Referring to Figure 2 , Figure 3 and Figure 7 , in one embodiment, the second fan assembly 400 includes a second connecting plate 430, a second fan blade 410 and a second motor 420, the second connecting plate 430 is fixed below the fourth air guide opening 134, and the second connecting plate 430 is further provided with buckles at the edge of the fourth air guide opening 134, the second connecting plate 430 is provided with tabs and arc-shaped notches at positions corresponding to the buckles and the columns respectively, the tabs are clamped on the buckles, and the columns are located in the arc-shaped notches, the second motor 420 is arranged below the second connecting plate 430, and the second fan blade 410 is arranged above the second connecting plate 430 and coaxially connected with the second motor 420. The cooperation between the columns and the sockets can ensure the stability of the connection between the third air guide part 131 and the fourth air guide part 132. Further, the number of columns is at least two. The number of sockets is opened corresponding to the number of columns. Further ensure the stability of the connection between the third air guide part 131 and the fourth air guide part 132. Specifically, the columns are provided with threaded holes. The third air guide part 131 and the fourth air guide part 132 are preliminarily fixed through the cooperation of the columns and the sockets. Screws are screwed into the threaded holes to further fix the third air guide part 131 and the fourth air guide part 132.

[0045] Referring to Figure 2 , Figure 7 and Figure 8 , in one embodiment, the box has an outer shell, the cooking cavity 160 is located in the outer shell, and a rear heat insulation plate 155 is arranged behind the cooking cavity 160, the outer shell includes an outer shell bottom plate 152 and an outer shell rear plate 153, the cooking cavity 160 includes a cavity bottom plate, a first air guide channel 150 is formed between the outer shell bottom plate 152 and the cavity bottom plate, a second air guide channel 154 is formed between the outer shell rear plate 153 and the rear heat insulation plate 155, and the first air guide channel 150, the second air guide channel 154 and the second air duct 140 are sequentially communicated.

[0046] In one embodiment, a third fan assembly 500 is further arranged on the heat insulation plate, the third fan assembly 500 includes a third motor and a third fan blade, and the third motor is located in the second air guide channel 154.

[0047] A first through hole 170 is formed on a portion of the front panel 151 near the bottom of the housing 100. The lower part of the rear heat insulation plate 155 passes through the first air guide channel 150 and has a second through hole 180. A third through hole 610 is also formed on the top of the housing 100. The third through hole 610 is connected to the other end of the first air guide channel 150. The other end of the third air guide section 131 with the third air guide port 133 and the end of the fourth air guide section 132 with the fourth air guide port 134 are spaced apart to form an air intake gap. The third through hole 610 can be connected to the air intake gap. Airflow enters the first air guide channel 150 through the first through hole 170 via the air intake port 311. It flows through the bottom of the housing 100, passes through the second through hole 180 and enters the back of the housing 100. Then it flows out from the back of the housing 100 through the third through hole 610 to the vicinity of the air intake gap. Under the action of the second fan assembly 400, the airflow enters the second air duct 140 and is discharged to the outside through the air outlet 135.

[0048] Traditionally, the cooling airflow on the back of the cavity typically draws in cooling air from the rear panel 153 or the side panel of the outer casing. However, in this embodiment, the third airflow eliminates the air inlets on the rear panel 153 and the side panel, instead placing the air inlet at the lower part of the front panel of the cavity (i.e., the first through hole 170). Firstly, with the air inlet located on the front of the cavity, it's easier for the user to spot and remove cockroaches or other insects that enter. Secondly, the built-in oven is placed in a cabinet, where space is limited. When the cooking appliance 10 is operating, some heat is transferred to the cabinet, making the air temperature inside higher than the ambient temperature. If the cooling air were drawn in from the rear panel 153 or the side panel, the temperature would be too high, resulting in poor cooling. Therefore, placing the air inlet on the front of the cavity ensures lower-temperature cooling and better heat dissipation.

[0049] See Figure 2 In one embodiment, the cooking device 10 further includes a connecting pipe 157. An exhaust port 156 communicating with the interior of the cavity is provided on the rear wall of the cavity. One end of the connecting pipe 157 is connected to the exhaust port 156, and the other end of the connecting pipe 157 is connected to the tail of the fourth air guide section 132 and communicates with the second air duct 140. When the cooking device 10 is in use, under the action of the second fan assembly 400, steam in the cooking cavity 160 can reach the second air duct 140 from the exhaust port 156 through the connecting pipe 157, and is then discharged to the outside through the air outlet 135. Simultaneously, because the steam mixes with other airflows in the second air duct 140, the temperature of the steam is greatly reduced, preventing burns to the user when discharged to the outside, thus ensuring the safety and reliability of the cooking device 10.

[0050] See Figures 8 to 10In one embodiment, the cooking device 10 further includes a waveguide box 800. The waveguide box 800 is disposed on one side of the housing 100. One end of the waveguide box 800 is connected to the magnetron 700, and the other end of the waveguide box 800 is connected to the cooking cavity 160. A microwave inlet 840 is provided on the end of the waveguide box 800 connected to the magnetron 700. A microwave transmitter 710 is disposed inside the magnetron 700. The microwave transmitter is located inside the microwave inlet 840. A microwave outlet 830 is provided on the other end of the waveguide box 800 connected to the cooking cavity 160. A microwave stirring device is disposed at the microwave outlet 830. The magnetron 700 and the waveguide box 800 are connected by a connecting piece 850. The microwave stirring device includes a stirring motor 810 and a stirring blade 820. The motor shaft of the stirring motor 810 passes through the microwave outlet 830, and the stirring blade 820 is disposed in the cooking cavity 160 and connected to the motor shaft of the stirring motor 810.

[0051] In one embodiment, such as Figure 11 As shown, the cooking device 10 also includes a water tank assembly, which includes a water tank base 900 and a water tank 910 slidably connected to the water tank base 900. A micro switch 940 and a rotary motor 930 are arranged on the rear side of the water tank base 900. A rotating plate 920 is coaxially connected to the rotary motor 930, and the micro switch 940 and the rotating plate 920 are arranged adjacent to each other. When the rotating plate 920 is in its initial position, the contacts of the rotating plate 920 and the micro switch 940 are in contact. When the water tank 910 needs to be ejected, the computer board receives a signal and controls the rotating motor 930 to rotate. Driven by the motor, the rotating plate 920 leaves the contact of the micro switch 940 and rotates clockwise. During the rotation, the rotating plate 920 contacts the water tank 910 and pushes the water tank 910 to move a certain distance, thus realizing the automatic ejection of the water tank 910. After the rotating plate 920 rotates one revolution, it returns to the initial position and presses the contact on the micro switch 940 again, and the rotating motor 930 stops rotating.

[0052] In one embodiment, the cooking device 10 further includes a variable frequency power supply. The variable frequency power supply is disposed within the first air outlet 113 of the second air guide section 112. Airflow passing through the variable frequency power supply acts on the magnetron 700, allowing the first air duct 120 to simultaneously cool both the variable frequency power supply and the magnetron 700. It should be noted that the devices disposed at the first air outlet 113 include, but are not limited to, the magnetron 700 and the variable frequency power supply.

[0053] In the embodiment, when the cooking device 10 is used, the first fan blade 210 and the second fan blade 410 are started simultaneously, and after the airflow enters from the air inlet 311, the airflow passes through the cooling air duct 310 and the heat insulation space 320 to the first air inlet 116. The airflow enters the first air guide part 111 through the first air inlet 116, enters the second air guide part 112 through the first air guide part 114, the first fan blade 210, and the second air guide part 115, and then is blown to the magnetron 700 through the first air outlet 113 to cool the magnetron 700. The second fan blade 410 can suck away the high-temperature airflow around the magnetron 700 through the air suction port. The high-temperature airflow enters the third air guide part 131 through the air suction port, enters the fourth air guide part 132 through the third air guide part 133, the second fan blade 410, and the fourth air guide part 134, and is discharged to the outside environment of the cooking device 10 through the air outlet 135.

[0054] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0055] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0056] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly on or under the second feature, or indirectly on or under the second feature with one or more intervening features. Also, a first feature "over", "above" and "on top of" a second feature can mean the first feature directly above or obliquely above the second feature, or can simply mean the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can mean the first feature directly below or obliquely below the second feature, or can simply mean the first feature is horizontally lower than the second feature.

[0058] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In addition, the term "connected" as used herein means the element is either directly connected to the other element or an intervening element can also be present. As used herein, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions are used for explanation only and are not to be construed as limiting.

[0059] Any of the technical features of the above-described embodiments can be combined in any manner, and to avoid a lengthy description, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0060] The above-described embodiments are merely illustrative of the present application and are not to be construed as limiting the scope of the present application. It is to be understood that those skilled in the art can make various modifications and improvements without departing from the concept of the present application, and such modifications and improvements are to be considered within the scope of the present application. Therefore, the scope of the present application should be defined by the appended claims.

Claims

1. A cooking apparatus, characterized by, The cooking device comprises: a cabinet, which is internally provided with a cooking cavity with an open front side; a door body, which is connected to the cabinet for opening and closing the cooking cavity, and is internally provided with a cooling air duct, and is provided with an air inlet on the edge thereof, which is in communication with the cooling air duct; a first air duct, which has a first air inlet and a first air outlet, and is in communication with the cooling air duct; a first fan assembly, which comprises a first motor and a first fan blade, and is arranged in the first air duct, and is used for driving air flow; and a magnetron, which is arranged at the first air outlet. The cabinet is provided with an air outlet, which is in communication with external air, and the upper portion of the cooking cavity is further provided with a second air duct, which has a second air inlet and a second air outlet, and the second air outlet is in communication with the air outlet, and the magnetron is provided with a heat dissipation channel, which penetrates through the two sides of the magnetron, the first air outlet is in communication with one side of the heat dissipation channel, and the second air inlet is in communication with the other side of the heat dissipation channel.

2. The cooking apparatus according to claim 1, characterized in that, The door body is provided with a partition plate, which divides the door body into the cooling air duct and a heat insulation space, the cooling air duct is located at the front side of the partition plate, and the heat insulation space is located at the rear side of the partition plate and is arranged close to the cooking cavity.

3. The cooking apparatus according to claim 1, characterized in that, The magnetron is internally provided with a microwave emitter.

4. The cooking apparatus according to claim 1, characterized in that, Further comprising a mounting plate and a first air baffle assembly, the mounting plate is arranged above the cooking cavity, the first air baffle assembly is arranged on the mounting plate and surrounds the first air duct together with the mounting plate, and the first fan blade is arranged in the first air baffle assembly.

5. The cooking apparatus according to claim 4, characterized in that, The first air baffle assembly comprises a first air guiding portion and a second air guiding portion, the first air guiding portion is arranged on the mounting plate, the first air guiding portion is in communication with the cooling air duct of the door body through the first air inlet, the first air guiding portion is provided with a first air guiding opening at the top thereof, the head portion of the second air guiding portion is arranged on the first air guiding opening, the second air guiding portion is in communication with the first air guiding portion through the first air guiding opening, the first air outlet is arranged on the tail portion of the second air guiding portion, and the first fan assembly is arranged at the first air guiding opening.

6. The cooking apparatus according to claim 5, wherein Further comprising a second air baffle assembly and a second fan assembly, the second air baffle assembly is arranged on the mounting plate, and the second air duct is formed in the second air baffle assembly; the second air baffle assembly comprises a third air baffle part and a fourth air baffle part, the third air baffle part is arranged on the mounting plate, one end of the third air baffle part is an air inlet towards the magnetron, and the other end of the third air baffle part is provided with a third air outlet at the top; the fourth air baffle part is provided with a fourth air outlet at the tail, the fourth air outlet is arranged above the third air outlet in a spaced manner, and an air inlet gap is formed between the fourth air outlet and the third air outlet; the front end of the fourth air baffle part is communicated with the air outlet; the first air baffle part and the fourth air baffle part are arranged in a spaced manner; the second fan assembly is arranged at the connection between the third air outlet and the fourth air outlet; the second fan assembly comprises a second motor and a second fan blade; the second motor is arranged in one of the third air outlet and the fourth air baffle part; and the second fan blade is arranged in the other one of the third air outlet and the fourth air baffle part.

7. The cooking apparatus according to claim 6, characterized in that, The fourth air baffle part is fixed on the third air baffle part, and the third air outlet is provided with a circumferentially distributed socket at the edge; the fourth air outlet is provided with a plug column corresponding to the socket at the edge; and the plug column is inserted into the socket; the second fan assembly comprises a second connecting plate, a second fan blade and a second motor; the second connecting plate is fixed below the fourth air outlet; the fourth air outlet is further provided with a buckle at the edge; the second connecting plate is provided with a tab and an arc-shaped notch at positions corresponding to the buckle and the plug column respectively; the tab is clamped on the buckle; the plug column is located in the arc-shaped notch; the second motor is arranged below the second connecting plate; and the second fan blade is arranged above the second connecting plate and coaxially connected with the second motor.

8. The cooking apparatus according to any one of claims 1-7, wherein, The box has an outer shell, the cooking cavity is located in the outer shell, and a rear heat insulation plate is arranged behind the cooking cavity; the outer shell comprises an outer shell bottom plate and an outer shell rear plate; the cooking cavity comprises a cavity bottom plate; a first air guide channel is formed between the outer shell bottom plate and the cavity bottom plate; a second air guide channel is formed between the outer shell rear plate and the rear heat insulation plate; the first air guide channel, the second air guide channel and the second air duct are communicated in sequence; further comprising a third fan assembly arranged on the heat insulation plate; the third fan assembly comprises a third motor and a third fan blade; and the third motor is located in the second air guide channel.

9. The cooking apparatus according to any one of claims 1-7, wherein, Further comprising a water tank assembly, the water tank assembly comprises a water tank seat and a water tank slidingly connected to the water tank seat; a micro switch and a rotating motor are arranged on the rear side of the water tank seat; a rotating plate is coaxially connected to the rotating motor; and the micro switch is arranged adjacent to the rotating plate.

10. The cooking apparatus according to any one of claims 6 or 7, characterized in that, Further comprising a communication pipe, a vent hole is arranged on the rear wall of the cooking cavity and communicated with the inside of the cooking cavity; one end of the communication pipe is connected to the vent hole; and the other end of the communication pipe is connected to the tail of the fourth air baffle part and communicated with the second air duct. The variable frequency power supply is arranged in the second air guide part.

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