Electric cooking appliance

Abstract

The utility model discloses a cooking electric appliance. The cooking electric appliance comprises a cavity, a first heating assembly, a second heating assembly, a fan assembly, an air inlet channel and an air outlet channel, wherein the first heating assembly, the second heating assembly, the fan assembly, the air inlet channel and the air outlet channel are arranged at the top of the cavity; the first heating assembly is arranged in the air inlet channel, the second heating assembly is arranged in the air outlet channel, and the power of the second heating assembly is larger than that of the first heating assembly. The fan assembly is connected with the air inlet channel and the air outlet channel. According to the cooking electric appliance, airflow which flows through the fan assembly from the air inlet channel and enters the air outlet channel can be formed, and therefore heat dissipation can be conducted on the first heating assembly and the second heating assembly. And moreover, the first heating assembly with relatively low power is firstly cooled, so that the temperature rise of the airflow flowing out of the fan assembly is relatively low, and the second heating assembly with relatively high power can also be effectively cooled.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a cooking appliance. Background Technology

[0002] With economic development and the continuous improvement of people's living standards, microwave ovens have become widely used household appliances. Microwave ovens generate microwaves or high temperatures and steam to quickly heat food. Correspondingly, the electronic components of a microwave oven generate a large amount of heat during operation. To ensure the reliability of these components, heat dissipation measures are usually implemented to keep them within a normal temperature range. Therefore, it is necessary to provide a cooking appliance that can dissipate heat from the electronic components. Utility Model Content

[0003] This utility model provides a cooking appliance to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a cooking appliance, including a cavity, a first heating element, a second heating element, a fan assembly, an air inlet channel, and an air outlet channel. The first heating element, the second heating element, the fan assembly, the air inlet channel, and the air outlet channel are located at the top of the cavity.

[0005] The first heating element is located in the air inlet channel, and the second heating element is located in the air outlet channel. The power of the second heating element is greater than that of the first heating element.

[0006] The fan assembly connects the air inlet channel and the air outlet channel.

[0007] In the aforementioned cooking appliance, the lower-powered first heating element is located in the air inlet channel, while the higher-powered second heating element is located in the air outlet channel. A fan assembly connects the air inlet and outlet channels. When the fan assembly operates, it generates airflow from the air inlet channel through the fan assembly into the air outlet channel, thereby dissipating heat from both the first and second heating elements. Furthermore, by first cooling the lower-powered first heating element, the temperature rise of the airflow exiting the fan assembly is minimized, effectively cooling the higher-powered second heating element as well.

[0008] In some embodiments, the cooking appliance includes a housing, and the cavity, the first heating element, the second heating element, the fan assembly, the air inlet channel, and the air outlet channel are disposed within the housing. The housing includes a left side panel, a right side panel, and a back panel, and at least one of the left side panel, the right side panel, and the back panel is provided with an air inlet, which communicates with the air inlet channel.

[0009] In some embodiments, the air intake channel includes a first air intake channel, the cooking appliance includes a housing, the first heating element is disposed inside the housing, and the first air intake channel is formed inside the housing.

[0010] In some embodiments, a docking portion is formed on the housing, the fan assembly includes a first impeller and a first volute, the first impeller is disposed inside the first volute, the first volute is provided with a first inlet, and the docking portion is connected to the first inlet.

[0011] In some embodiments, the cooking appliance includes a housing, the housing, the cavity, the first heating element, the second heating element, the fan assembly, the air inlet channel, and the air outlet channel are disposed within the housing. The housing has a first air inlet on a first side plate near the housing, and the housing has a through hole on the side wall facing the first side plate. The first air inlet channel communicates with the first air inlet through the through hole.

[0012] In some embodiments, the air inlet channel includes a second air inlet channel, the fan assembly includes a motor, a second impeller and a second volute, the second impeller is disposed inside the second volute, the motor is connected to the first impeller and the second impeller, the second volute is provided with a second inlet, and the outer shell is provided with a second air inlet on a second side plate near the second volute and opposite to the first side plate, the second air inlet is connected to the second inlet through the second air inlet channel.

[0013] In some embodiments, the cooking appliance includes an air outlet that covers the second heating element and has an air outlet channel inside it.

[0014] In some embodiments, the air outlet component includes a first air outlet portion, the air outlet channel includes a first air outlet channel, the first air outlet portion is provided with the first air outlet channel, the fan assembly includes a first impeller and a first volute, the first impeller is disposed inside the first volute, the first volute is provided with a first outlet, and the first air outlet portion is connected to the first outlet.

[0015] In some embodiments, the second heating element includes a magnetron disposed in the first air outlet channel.

[0016] In some embodiments, the air outlet includes a second air outlet portion, the air outlet channel includes a second air outlet channel, the second air outlet portion is provided with the second air outlet channel, the fan assembly includes a motor, a second impeller and a second volute, the second impeller is disposed in the second volute, the motor is connected to the first impeller and the second impeller, the second volute is provided with a second outlet, and the second air outlet portion is connected to the second outlet.

[0017] In some embodiments, the second heating component includes a drive plate and a filter plate, the drive plate and the filter plate being disposed in the second air outlet channel.

[0018] In some embodiments, the air outlet includes a connecting portion that connects the first air outlet and the second air outlet.

[0019] In some embodiments, the connecting portion, the first air outlet, and the second air outlet, located away from the sidewall of the air outlet channel, together form an accommodating space. The cooking appliance includes a waveguide and a stirring motor, which are disposed within the accommodating space.

[0020] In some embodiments, the cavity includes a front panel with an air outlet, and the air outlet is connected to the air outlet.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the cooking appliance according to an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the cooking appliance according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the airflow direction of the cooking appliance according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the fan assembly according to an embodiment of the present invention;

[0027] Figure 5 This is a structural schematic diagram of the air outlet component according to an embodiment of the present invention.

[0028] Explanation of key figure labels:

[0029] Cooking appliances 1000;

[0030] Cavity 1, front panel 11, air outlet 12;

[0031] 2. Housing 2, docking part 21, through hole 22;

[0032] First heating element 3, magnetron 31;

[0033] Second heating element 4, drive plate 41, filter plate 42;

[0034] Air inlet channel 5, first air inlet channel 51, second air inlet channel 52, third air inlet channel 53;

[0035] Air outlet duct 6, first air outlet duct 61, second air outlet duct 62;

[0036] Air outlet 7, first air outlet 71, second air outlet 72, connecting part 73, first connecting part 731, second connecting part 732, receiving part 74, guide part 75;

[0037] 8. Containing space; 9. Waveguide; 10. Stirring motor;

[0038] Outer shell 100, left side panel 110, right side panel 120, back panel 130, air inlet 101, first air inlet 102, second air inlet 103, third air inlet 104, first side panel 140, second side panel 150, third side panel 160.

[0039] The fan assembly 200 includes a first impeller 211, a first volute 212, a first inlet 213, a first outlet 214, a motor 22, a second impeller 231, a second volute 232, a second inlet 233, and a second outlet 234. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this utility model, and should not be construed as limiting the embodiments of this utility model.

[0047] Please see Figures 1 to 3This utility model provides a cooking appliance 1000. The cooking appliance 1000 includes a cavity 1, a first heating element 3, a second heating element 4, a fan assembly 200, an air inlet channel 5, and an air outlet channel 6. The first heating element 3, the second heating element 4, the fan assembly 200, the air inlet channel 5, and the air outlet channel 6 are located at the top of the cavity 1. The first heating element 3 is located in the air inlet channel 5, and the second heating element 4 is located in the air outlet channel 6. The power of the second heating element 4 is greater than the power of the first heating element 3. The fan assembly 200 connects the air inlet channel 5 and the air outlet channel 6.

[0048] In the aforementioned cooking appliance 1000, the lower-power first heating element 3 is located in the air inlet channel 5, and the higher-power second heating element 4 is located in the air outlet channel 6. The fan assembly 200 connects the air inlet channel 5 and the air outlet channel 6. When the fan assembly 200 is running, it can generate airflow from the air inlet channel 5 through the fan assembly 200 into the air outlet channel 6, thereby dissipating heat from the first heating element 3 and the second heating element 4. Moreover, by first dissipating heat from the lower-power first heating element 3, the temperature rise of the airflow exiting the fan assembly 200 is reduced, and the higher-power second heating element 4 can also be effectively dissipated.

[0049] Specifically, cooking appliance 1000 is an appliance used for cooking food. Cooking appliance 1000 may include, but is not limited to, ovens, steam ovens, steam ovens, microwave-steam-oven combos, microwave ovens, microwave-steam ovens, etc.

[0050] Cavity 1 is a closed or semi-closed structural component. Optionally, please refer to... Figure 1 and Figure 2 The cavity 1 includes a front plate 11. Optionally, the cavity 1 may be made of metal. The cavity 1 has a cooking chamber inside, which can hold food ingredients for cooking.

[0051] The first heating element 3 refers to an electrical component that generates relatively little heat during operation. The second heating element 4 refers to an electrical component that generates relatively much heat during operation. The power of the second heating element 4 is greater than that of the first heating element 3. The power referred to can be rated power, average power, etc.

[0052] The fan assembly 200 is a component used to generate and maintain a strong airflow. The fan assembly 200 is installed on the top of the cavity 1. When the fan assembly 200 is running, it can reduce the temperature of the first heating component 3 and the second heating component 4 during operation, preventing overheating and damage to the first heating component 3 and the second heating component 4.

[0053] Air inlet channel 5 and air outlet channel 6 refer to the channels for air circulation. When the fan assembly 200 is running, air from outside the cooking appliance 1000 can flow into the air inlet channel 5 and then into the fan assembly 200. Airflow exiting the fan assembly 200 can flow into the air outlet channel 6.

[0054] In related technologies, cooking appliances generate a large amount of heat from their electronic components during operation. To ensure the reliability of these components, heat dissipation measures are typically implemented to keep them within a normal temperature range. Therefore, it is necessary to provide a cooking appliance that dissipates heat from its electronic components.

[0055] In this embodiment of the invention, the air inlet channel 5 is used to introduce air from outside the cooking appliance 1000 into the fan assembly 200. The air in the air inlet channel 5 can flow through the first heating element 3, which has lower power, meaning it is an electrical component that generates less heat during operation. The air outlet channel 6 is used to discharge the air, accelerated by the fan assembly 200, to the outside of the cooking appliance 1000. The air in the air outlet channel 6 can flow through the second heating element 4, which has higher power, meaning it is an electronic component that generates more heat during operation.

[0056] Understandably, during the process of introducing external air into the fan assembly 200 of the cooking appliance 1000, the cooler air exchanges heat with the hotter first heating element 3, thereby dissipating heat from the first heating element 3. Similarly, during the process of expelling the accelerated air from the cooking appliance 1000 by the fan assembly 200, the cooler air exchanges heat with the hotter second heating element 4, thereby dissipating heat from the second heating element 4.

[0057] Understandably, because the first heating component 3 has a smaller power, the air temperature rise after the fan component 200 accelerates is less, and the second heating component 4 with a larger power can also effectively dissipate heat.

[0058] In some implementations, please refer to Figure 1 The cooking appliance 1000 includes a housing 100. A cavity 1, a first heating element 3, a second heating element 4, a fan assembly 200, an air inlet channel 5, and an air outlet channel 6 are disposed within the housing 100. The housing 100 includes a left side panel 110, a right side panel 120, and a back panel 130. At least one of the left side panel 110, the right side panel 120, and the back panel 130 is provided with an air inlet 101, which connects to the air inlet channel 5.

[0059] In the above embodiment, at least one of the left side panel 110, the right side panel 120 and the back panel 130 is provided with an air inlet 101. The air inlet 101 is connected to the air inlet channel 5, which can ensure smooth airflow to a certain extent, so that air can flow from outside the cooking appliance 1000 into the fan assembly 200 to dissipate heat from the first heating component 3.

[0060] Specifically, the outer casing 100 refers to the external protective structure of the cooking appliance 1000, which surrounds and protects the components housed within the outer casing 100. Optionally, the outer casing 100 may be made of metal.

[0061] Optionally, in Figure 1 In this embodiment, air inlets 101 are provided on the left side plate 110, the right side plate 120, and the back plate 130. When the fan assembly 200 is running, air can be drawn in from the left, right, and rear, which ensures the air volume to a certain extent and thus improves the heat dissipation efficiency. The first heat-generating component 3 is located between the air inlets 101 and the fan assembly 200, which can improve the effectiveness of heat dissipation for the first heat-generating component 3 to a certain extent.

[0062] It is understood that a receiving cavity is formed between the top of the outer shell 100 and the cavity 1. The first heating element 3, the second heating element 4, the air inlet channel 5, and the air outlet channel 6 are disposed within the receiving cavity.

[0063] It is understood that the size, shape and number of air inlets 101 can be selected according to factors such as heat dissipation requirements, space requirements and stability, and this utility model does not impose specific limitations.

[0064] Alternatively, in other embodiments, one or both of the left side panel 110, the right side panel 120, and the back panel 130 are provided with air inlets 101.

[0065] In some implementations, please refer to Figures 1 to 3 The air intake channel 5 includes a first air intake channel 51. The cooking appliance 1000 includes a housing 2, and a first heating element 3 is disposed inside the housing 2, forming the first air intake channel 51 inside the housing 2.

[0066] In the above embodiment, the first air inlet channel 51 inside the housing 2 can effectively guide the air outside the cooking appliance 1000 to flow in. The air in the first air inlet channel 51 can flow through the first heating element 3, thereby taking away the heat generated by the first heating element 3, improving the heat dissipation efficiency of the first heating element 3, and to a certain extent avoiding the normal operation of the cooking appliance 1000 due to overheating.

[0067] Specifically, the housing 2 refers to a structural component used to protect the first heating element 3. It provides physical protection for the first heating element 3 while forming a first air intake channel 51 to facilitate heat dissipation from the first heating element 3. The materials of the housing 2 include, but are not limited to, metal and plastic.

[0068] In this embodiment of the utility model, the housing 2 is connected to the outside of the cooking appliance 1000. Before the outside air flows into the fan assembly 200, it can first flow through the first heating component 3 inside the housing 2 for heat dissipation.

[0069] Optionally, in one embodiment, the first heating element 3 may be a power board. A power board is a component used to provide stable electrical energy to the cooking appliance 1000. The power board may include various electronic components, such as transformers, rectifier circuits, filter capacitors, voltage regulators, etc., used to convert the input AC or DC power into voltage and current suitable for the operation of the cooking appliance 1000.

[0070] In some implementations, please refer to Figure 1 , Figure 2 and Figure 4 A docking portion 21 is formed on the housing 2. The fan assembly 200 includes a first impeller 211 and a first volute 212, with the first impeller 211 disposed inside the first volute 212. The first volute 212 is provided with a first inlet 213, and the docking portion 21 is connected to the first inlet 213.

[0071] In the above embodiment, a docking part 21 is formed on the housing 2. The docking part 21 is connected to the first inlet 213, which can ensure the smoothness of the airflow path to a certain extent and is conducive to heat dissipation of the first heating component 3 and the second heating component 4.

[0072] Specifically, the housing 2 is connected to the outside of the cooking appliance 1000. When the fan assembly 200 is working, the first impeller 211 rotates, creating a negative pressure in the first air inlet channel 51. Air from outside the cooking appliance 1000 can flow into the first air inlet channel 51 under the action of negative pressure, thereby dissipating heat from the first heating element 3. The air that has exchanged heat with the first heating element 3 inside the housing 2 continues to flow from the docking part 21 to the first inlet 213 of the first volute 212 under the action of negative pressure, and then flows into the fan assembly 200.

[0073] The mating part 21 and the first inlet 213 can be connected by means including but not limited to thread fastening, snap fastening, gluing, welding or riveting.

[0074] In some implementations, please refer to Figure 2The cooking appliance 1000 includes a housing 100. A housing 2, a cavity 1, a first heating element 3, a second heating element 4, a fan assembly 200, an air inlet channel 5, and an air outlet channel 6 are disposed within the housing 100. A first air inlet 102 is provided on a first side plate 140 of the housing 100 near the housing 2. A through hole 22 is provided on the side wall of the housing 2 facing the first side plate 140. The first air inlet channel 51 communicates with the first air inlet 102 through the through hole 22.

[0075] In the above embodiment, the side wall of the housing 2 facing the first side plate 140 is provided with a through hole 22, and the first air inlet channel 51 is connected to the first air inlet 102 through the through hole 22, which to a certain extent ensures that external air can flow smoothly into the housing 2, thereby dissipating heat from the first heating component 3.

[0076] Specifically, the first heating element 3 is disposed inside the housing 2, and the housing 2 is provided with a through hole 22. A first air inlet 102 is provided on the first side plate 140 near the housing 2. Air from outside the cooking appliance 1000 can flow into the housing 2 through the first air inlet 102 and the through hole 22 to dissipate heat from the first heating element 3. Moreover, the first side plate 140 is close to the housing 2, which can reduce the airflow path and ensure the airflow and velocity entering the first air inlet channel 51.

[0077] exist Figure 2 In this embodiment, the first side panel 140 is the left side panel 110 of the outer casing 100. The first air inlet 102 is the air inlet 101 on the left side panel 110.

[0078] In some implementations, please refer to Figure 3 and Figure 4 The air inlet channel 5 includes a second air inlet channel 52. The fan assembly 200 includes a motor 22, a second impeller 231, and a second volute 232. The second impeller 231 is disposed inside the second volute 232. The motor 22 is connected to the first impeller 211 and the second impeller 231. The second volute 232 is provided with a second inlet 233. The outer casing 100 has a second air inlet 103 on a second side plate 150 near the second volute 232 and opposite to the first side plate 140. The second air inlet 103 communicates with the second inlet 233 through the second air inlet channel 52.

[0079] In the above embodiments, the second air inlet 103, the second air inlet channel 52, the second impeller 231, and the second volute 232 can enable the external air of the cooking appliance 1000 to dissipate heat to the second heating element 4, thereby improving the effectiveness of heat dissipation of the second heating element 4.

[0080] Specifically, the motor 22 can convert electrical energy into mechanical energy, thereby causing the first impeller 211 and the second impeller 231 to rotate. When the second impeller 231 rotates, it can create a negative pressure in the second air inlet channel 52. Under the action of the negative pressure, the air outside the cooking appliance 1000 flows from the second air inlet 103 on the second side plate 150 to the second inlet 233 of the second volute 232 and flows into the fan assembly 200.

[0081] Understandably, when the low-temperature air outside the cooking appliance 1000 flows into the fan assembly 200 from the second air inlet channel 52 and is blown out to the second heating element 4, the low-temperature air outside the cooking appliance 1000 can directly dissipate heat to the second heating element 4, further improving the heat dissipation efficiency of the second heating element 4.

[0082] Optionally, the air intake channel 5 includes a third air intake channel 53, and a third air inlet 104 is provided on the third side plate 160 of the housing 100 to further improve the heat dissipation efficiency of the first heating element 3 and the second heating element 4. The third air intake channel 53 is connected to the third air inlet 104, the first inlet 213, and the second inlet 233. Figure 2 In the embodiment shown, the third side plate 160 is the back plate 130 of the outer shell 100.

[0083] In some implementations, please refer to Figure 2 and Figure 3 The cooking appliance 1000 includes an air outlet 7. The air outlet 7 is covered by a second heating element 4, and an air outlet channel 6 is provided inside the air outlet 7.

[0084] In the above embodiment, the air outlet 7 can guide the air flowing out of the fan assembly 200 through the second heating assembly 4, thereby dissipating heat from the second heating assembly 4 and improving the heat dissipation efficiency of the second heating assembly 4.

[0085] Specifically, the air outlet 7 is a structural component used to guide the air flowing from the fan assembly 200 through the second heating element 4 and out of the cooking appliance 1000. The air outlet 7 is connected to the outlet of the fan assembly 200 and covers the second heating element 4. The air flowing from the fan assembly 200 circulates in the air outlet channel 6 formed by the air outlet 7 to flow through the second heating element 4 for heat dissipation, thereby reducing airflow loss and improving heat dissipation efficiency.

[0086] Optionally, the air outlet 7 can be fixedly connected to or detachably connected to the top plate of the cavity 1.

[0087] In some implementations, please refer to Figure 3 and Figure 5The air outlet component 7 includes a first air outlet portion 71. The air outlet channel 6 includes a first air outlet channel 61. The first air outlet portion 71 is provided with the first air outlet channel 61. The fan assembly 200 includes a first impeller 211 and a first volute 212, with the first impeller 211 disposed within the first volute 212. The first volute 212 is provided with a first outlet 214, and the first air outlet portion 71 is connected to the first outlet 214.

[0088] In the above embodiment, the first air outlet 71 is provided with a first air outlet channel 61 and is connected to the first outlet 214, so that the air flowing out of the first outlet 214 flows to the first air outlet 71, thereby dissipating heat from the second heating component 4 located in the first air outlet channel 61 while reducing the impact of the second heating component 4 located in the first air outlet channel 61 on the area outside the first air outlet channel 61.

[0089] Specifically, in Figures 1 to 3 In the illustrated embodiment, the bottom of the first air outlet channel 61 provided in the first air outlet 71 is an open end, and the top plate of the cavity 1 is located at the bottom of the first air outlet 71 and seals the open end, so that the first air outlet channel 61 forms a bottom-closed airflow space. It can be understood that in other embodiments, the first air outlet channel 61 formed by the first air outlet 71 may also be a channel with a closed bottom.

[0090] The second heating element 4 can be disposed within the first air outlet channel 61. The first outlet 214 of the first volute 212 is connected to the first air outlet 71. When the fan assembly 200 is operating, the airflow blown out by the first impeller 211 and the first volute 212 flows through the second heating element 4 located within the first air outlet channel 61, guided by the first air outlet 71. Due to the guidance of the first air outlet 71, almost all of the airflow flowing out from the first impeller 211 is used to cool the second heating element 4, which helps to improve heat dissipation efficiency.

[0091] In some implementations, please refer to Figure 2 The second heating component 4 includes a magnetron 31, which is located in the first air outlet channel 61.

[0092] In the above embodiment, the magnetron 31 is disposed in the first air outlet channel 61, which can effectively dissipate heat from the magnetron 31 and at the same time reduce the impact of the magnetron 31 on areas outside the first air outlet channel 61.

[0093] Specifically, the magnetron 31 is an electrical component used to convert DC power into microwaves (high-frequency electromagnetic waves) and transmit them in the form of a beam through its output terminal.

[0094] During operation, the magnetron 31 generates a high amount of heat. In this embodiment of the invention, the magnetron 31 is located in the first air outlet channel 61, which allows the air flowing out from the first outlet 214 to effectively dissipate heat from the magnetron 31, while also preventing the heat from the magnetron 31 from affecting areas outside the first air outlet channel 61 to a certain extent.

[0095] In some implementations, please refer to Figure 3 and Figure 5 The air outlet component 7 includes a second air outlet 72. The air outlet channel 6 includes a second air outlet channel 62. The second air outlet 72 is provided with the second air outlet channel 62. The fan assembly 200 includes a motor 22, a second impeller 231, and a second volute 232. The second impeller 231 is disposed inside the second volute 232. The motor 22 is connected to the first impeller 211 and the second impeller 231. The second volute 232 is provided with a second outlet 234, and the second air outlet 72 is connected to the second outlet 234.

[0096] In the above embodiment, the second air outlet 72 is provided with a second air outlet channel 62 and is connected to the second outlet 234, so that the air flowing out from the second outlet 234 flows to the second air outlet 72, thereby dissipating heat from the second heating component 4 located in the second air outlet channel 62 and reducing the impact of the second heating component 4 located in the second air outlet channel 62 on the area outside the second air outlet channel 62.

[0097] Specifically, in Figures 1 to 3 In the illustrated embodiment, the bottom of the second air outlet duct 62 provided in the second air outlet 72 is an open end, and the top plate of the cavity 1 is located at the bottom of the second air outlet 72 and seals the open end, so that the second air outlet duct 62 forms a bottom-closed airflow space. It can be understood that in other embodiments, the second air outlet duct 62 formed by the second air outlet 72 may also be a channel with a closed bottom.

[0098] The second heating element 4 can be disposed within the second air outlet duct 62. The second outlet 234 of the second volute 232 is connected to the second air outlet 72. When the fan assembly 200 is operating, the airflow blown out by the second impeller 231 and the second volute 232 flows through the second air outlet 72 under the guidance of the second air outlet 72, passing through the second heating element 4 located in the second air outlet duct 62. Due to the guidance of the second air outlet 62, almost all of the airflow flowing out from the second impeller 231 is used to cool the second heating element 4, which helps to improve heat dissipation efficiency.

[0099] In some implementations, please refer to Figure 2 and Figure 3 The second heating component 4 includes a drive plate 41 and a filter plate 42, which are located in the second air outlet duct 62.

[0100] In the above embodiment, the drive plate 41 and the filter plate 42 are disposed in the second air outlet channel 62, which can effectively dissipate heat from the drive plate 41 and the filter plate 42, while reducing the impact of the drive plate 41 and the filter plate 42 on areas outside the second air outlet channel 62.

[0101] Specifically, the driver board 41 can convert the mains voltage (220V) into high-voltage AC power suitable for the magnetron 31 to drive the magnetron 31. The filter board 42 can be used to filter out interference and noise in the converted high-voltage AC power, thereby ensuring the normal operation of the magnetron 31 to a certain extent.

[0102] During operation, the drive plate 41 and filter plate 42 generate heat. In this embodiment of the invention, the drive plate 41 and filter plate 42 are located in the second air outlet duct 62, which allows the air flowing out from the second outlet 234 to effectively dissipate heat from the drive plate 41 and filter plate 42, while also preventing the heat from the drive plate 41 and filter plate 42 from affecting areas outside the second air outlet duct 62 to a certain extent.

[0103] It should be noted that, in practical applications, the heat generated by the magnetron 31 is greater than the heat generated by the drive board 41 and the filter plate 42. Figure 2 In this embodiment, the magnetron 31 is disposed in the first air outlet channel 61, and the drive plate 41 and the filter plate 42 are disposed in the second air outlet channel 62. This allows the air flowing out from the first outlet 214 to dissipate heat from the magnetron 31 and the air flowing out from the second outlet 234 to dissipate heat from the drive plate 41 and the filter plate 42. At the same time, it avoids, to a certain extent, the excessive working heat of the magnetron 31 from affecting the heat dissipation efficiency of the drive plate 41 and the filter plate 42.

[0104] In some implementations, please refer to Figure 5 The air outlet component 7 includes a connecting part 73, which connects the first air outlet 71 and the second air outlet 72.

[0105] In the above embodiments, the connecting part 73 connects the first air outlet 71 and the second air outlet 72, which can improve the structural stability of the air outlet 7 to a certain extent.

[0106] Specifically, the connecting portion 73 may include a first connecting portion 731 and a second connecting portion 732. The first connecting portion 731 connects the ends of the first air outlet portion 71 and the second air outlet portion 72 that are close to the fan assembly 200. The second connecting portion 732 connects the ends of the first air outlet portion 71 and the second air outlet portion 72 that are away from the air outlet assembly.

[0107] Optionally, in Figure 5 In the embodiment, the connecting part 73, the first air outlet 71, and the second air outlet 72 are integrally formed structures.

[0108] Optionally, the connection method of the connecting part 73 to the first air outlet 71 and the second air outlet 72 may include, but is not limited to, snap-fit, gluing, welding or riveting.

[0109] It should be noted that, optionally, in one embodiment, the connecting part 73 is a hollow structure, that is, the first air outlet channel 61 and the second air outlet channel 62 can be connected through the interior of the connecting part 73. In another embodiment, the connecting part 73 is a solid structure, that is, the first air outlet channel 61 and the second air outlet channel 62 are not connected.

[0110] In some implementations, please refer to Figure 1 and Figure 2 The connecting part 73, the first air outlet 71, and the second air outlet 72, which are located away from the side wall of the air outlet channel 6, together form an accommodating space 8. The cooking appliance 1000 includes a waveguide 9 and a stirring motor 10, which are disposed in the accommodating space 8.

[0111] In the above embodiments, the waveguide 9 and the stirring motor 10 are housed in the accommodating space 8, which to a certain extent ensures the convenience of regular inspection and maintenance of the waveguide 9 and the stirring motor 10.

[0112] Specifically, waveguide 9 is a device for transmitting microwave signals. Waveguide 9 is connected to magnetron 31 and can guide the microwave energy generated by magnetron 31 to the cooking cavity.

[0113] The stirring motor 10 can drive the antenna to rotate so that the microwave energy generated by the magnetron 31 can be evenly distributed to the food surface.

[0114] In some implementations, please refer to Figure 1 and Figure 2 The cavity 1 includes a front panel 11, the front panel 11 is provided with an air outlet 12, and the air outlet component 7 is connected to the air outlet 12.

[0115] In the above embodiment, the front panel 11 is provided with an air outlet 12, and the air outlet component 7 is connected to the air outlet 12, so that the working heat generated by the first heating component 3 and the second heating component 4 can be transferred from the air outlet 12 on the front side of the cooking appliance 1000 to the outside of the cooking appliance 1000, which to a certain extent avoids heat from being trapped inside the cooking appliance 1000, thereby affecting the normal operation of the cooking appliance 1000.

[0116] Optionally, the size, shape, and number of air outlets 12 can be selected according to factors such as heat dissipation requirements, space requirements, and stability. This utility model does not impose specific limitations on these factors.

[0117] Specifically, the ends of the first air outlet 71 and the second air outlet 72 that are away from the fan assembly 200 are connected to the air outlet 12. The air flowing out from the fan assembly 200 can flow through the first air outlet 71 and the second air outlet 72 to the air outlet 12, thereby flowing out of the cooking appliance 1000.

[0118] In the optional implementation, please combine Figure 5 The air outlet component 7 includes a receiving portion 74 and a guiding portion 75. The guiding portion 75 is closer to the air outlet 12 provided on the front plate 11 of the cavity 1 than the receiving portion 74. The guiding portion 75 tapers from the receiving portion 74 in the direction toward the air outlet 12.

[0119] Specifically, the housing 74 can provide sufficient space to accommodate the second heating element 4. The guide 75 can guide the air that has exchanged heat with the second heating element 4 to flow more quickly to the air outlet 12, thereby allowing heat to flow out of the cooking appliance 1000 more quickly and improving heat dissipation efficiency.

[0120] Understandably, since the guide section 75 gradually narrows from the receiving section 74 towards the air outlet 12, the cross-sectional area through which the air flows gradually decreases as the air flows within the guide section 75. With the fan assembly 200 continuously blowing air, i.e., with a constant airflow, the gradually decreasing cross-sectional area through which the air flows results in an increased air velocity, causing it to flow towards the air outlet 12 more quickly.

[0121] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0122] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more steps for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0123] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, combinations, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cooking appliance, characterized in that, It includes a cavity, a first heating element, a second heating element, a fan assembly, an air inlet channel, and an air outlet channel, wherein the first heating element, the second heating element, the fan assembly, the air inlet channel, and the air outlet channel are located at the top of the cavity; The first heating element is located in the air inlet channel, and the second heating element is located in the air outlet channel. The power of the second heating element is greater than that of the first heating element. The fan assembly connects the air inlet channel and the air outlet channel.

2. The cooking appliance according to claim 1, characterized in that, The cooking appliance includes a housing, and the cavity, the first heating element, the second heating element, the fan assembly, the air inlet channel, and the air outlet channel are disposed within the housing. The housing includes a left side panel, a right side panel, and a back panel. At least one of the left side panel, the right side panel, and the back panel is provided with an air inlet, and the air inlet is connected to the air inlet channel.

3. The cooking appliance according to claim 1, characterized in that, The air intake channel includes a first air intake channel, the cooking appliance includes a housing, the first heating element is disposed inside the housing, and the first air intake channel is formed inside the housing.

4. The cooking appliance according to claim 3, characterized in that, The housing has a docking portion, and the fan assembly includes a first impeller and a first volute. The first impeller is disposed inside the first volute, and the first volute has a first inlet. The docking portion is connected to the first inlet.

5. The cooking appliance according to claim 4, characterized in that, The cooking appliance includes a housing, a cavity, a first heating element, a second heating element, a fan assembly, an air inlet channel, and an air outlet channel, all disposed within the housing. A first air inlet is provided on a first side plate of the housing near the housing, and a through hole is provided on the side wall of the housing facing the first side plate. The first air inlet channel communicates with the first air inlet through the through hole.

6. The cooking appliance according to claim 5, characterized in that, The air inlet channel includes a second air inlet channel. The fan assembly includes a motor, a second impeller, and a second volute. The second impeller is disposed inside the second volute. The motor is connected to the first impeller and the second impeller. The second volute is provided with a second inlet. The outer shell is provided with a second air inlet on a second side plate that is close to the second volute and opposite to the first side plate. The second air inlet is connected to the second inlet through the second air inlet channel.

7. The cooking appliance according to claim 1, characterized in that, The cooking appliance includes an air outlet component, which covers the second heating element, and the air outlet component has an air outlet channel inside.

8. The cooking appliance according to claim 7, characterized in that, The air outlet component includes a first air outlet section, the air outlet channel includes a first air outlet channel, the first air outlet section is provided with the first air outlet channel, the fan assembly includes a first impeller and a first volute, the first impeller is disposed inside the first volute, the first volute is provided with a first outlet, and the first air outlet section is connected to the first outlet.

9. The cooking appliance according to claim 8, characterized in that, The second heating element includes a magnetron, which is located within the first air outlet channel.

10. The cooking appliance according to claim 8, characterized in that, The air outlet component includes a second air outlet section, the air outlet channel includes a second air outlet channel, the second air outlet section is provided with the second air outlet channel, the fan assembly includes a motor, a second impeller and a second volute, the second impeller is disposed inside the second volute, the motor is connected to the first impeller and the second impeller, the second volute is provided with a second outlet, and the second air outlet section is connected to the second outlet.

11. The cooking appliance according to claim 10, characterized in that, The second heating component includes a drive plate and a filter plate, which are disposed within the second air outlet channel.

12. The cooking appliance according to claim 10, characterized in that, The air outlet component includes a connecting portion, which connects the first air outlet and the second air outlet.

13. The cooking appliance according to claim 12, characterized in that, The connecting part, the first air outlet and the second air outlet, together with the side wall away from the air outlet channel, form an accommodating space. The cooking appliance includes a waveguide and a stirring motor, and the waveguide and the stirring motor are disposed in the accommodating space.

14. The cooking appliance according to claim 7, characterized in that, The cavity includes a front panel, the front panel is provided with an air outlet, and the air outlet component is connected to the air outlet.

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