A cooking appliance

Abstract

The application discloses a cooking utensil, which comprises an inner shell with a cooking cavity and an outer shell surrounding the outer side of the inner shell, a heating device is arranged in the cooking cavity, an air guide cover is arranged between the outer shell and the inner shell, the air guide cover cooperates with a side plate of the inner shell to form an air guide cavity, a circulating fan is arranged in the air guide cavity, the side plate is provided with an air inlet area and an air outlet area which are communicated with the cooking cavity and the air guide cavity, the circulating fan drives the air flow to circulate between the air guide cavity and the cooking cavity, the cooking utensil further comprises an illuminating lamp, a lamp body of the illuminating lamp is located in the air guide cavity, and the side plate is further provided with a light transmission area which is opposite to the illuminating lamp. The application avoids the direct baking of the lamp body by high temperature in the cooking cavity, the self-heating of the lamp body is in a relatively low air guide cavity environment, the temperature rise of the lamp body is reduced, the circulating fan drives the air flow in the air guide cavity, which provides good heat dissipation conditions for the illuminating lamp, further reduces the temperature of the lamp body, thereby prolongs the service life of the illuminating lamp and improves the stability and reliability of the illumination.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, specifically relating to a cooking appliance. Background Technology

[0002] To facilitate user observation of food cooking within ovens, microwave ovens, and other cooking appliances, most existing cooking appliances include lighting functions. These lights are typically mounted on the upper shell of the appliance's cavity for downward illumination. For example, patent document CN202320691216.1 discloses a cavity assembly for a cooking device, comprising multiple shell plates forming a front-opening cooking cavity. At least one of the shell plates is a mounting plate, including a plate body and a folded edge. The folded edge is connected to at least one side of the plate body and extends towards the cooking cavity. The folded edge is used to mount the cooking appliance's light, which extends into the cooking cavity through a mounting hole to illuminate it. However, in this technical solution, the light extends into the cooking cavity. During operation, the temperature inside the cooking cavity is high, and combined with the heat generated by the light itself, the excessively high temperature severely reduces the lifespan of the light, affecting the stability and reliability of the illumination.

[0003] Furthermore, existing lighting fixtures generally consist of a lamp body, a lampshade covering the outside of the lamp body, a lamp holder for mounting the lamp body, and a steel ring. The lamp holder is fastened to the steel ring, the steel ring is fixed to the cooking appliance, and the lampshade is fixed to the steel ring via a screw structure. Using a lampshade to protect the lamp body results in higher costs. In addition, the external lampshade hinders heat dissipation of the lamp body, and the design of the lighting fixture extending into the cooking cavity further impedes effective heat dissipation during use, further reducing the lifespan of the lamp body. Utility Model Content

[0004] This application provides a cooking appliance to solve the technical problem that in existing cooking appliances, the lamp extends into the cooking cavity during installation. The high operating temperature inside the cooking cavity and the lamp cover covering the outside of the lamp body both result in poor heat dissipation of the lamp body, which seriously affects the stability and reliability of the lamp operation and even the lifespan of the lamp.

[0005] The technical solution adopted in this application is as follows:

[0006] A cooking appliance includes an inner shell with a cooking cavity and an outer shell surrounding the outer side of the inner shell. A heating device is disposed inside the cooking cavity. An air guide hood is provided between the outer shell and the inner shell. The air guide hood and a side plate of the inner shell cooperate to form an air guide cavity. A circulating fan is disposed inside the air guide cavity. The side plate has an air inlet area and an air outlet area communicating between the cooking cavity and the air guide cavity. The circulating fan drives airflow to circulate between the air guide cavity and the cooking cavity. The cooking appliance also includes a light lamp. The lamp body is located inside the air guide cavity. The side plate also has a light-transmitting area facing the light lamp.

[0007] In this application, the lamp body is located within the air guide cavity rather than extending directly into the cooking cavity. This avoids direct baking of the lamp body by the high temperatures within the cooking cavity, while also minimizing the lamp body's own heat generation within the relatively cool air guide cavity environment. This reduces the lamp body's temperature rise, thereby extending its lifespan and improving the stability and reliability of the lighting. Furthermore, a circulating fan within the air guide cavity drives airflow, providing excellent heat dissipation for the lamp body and further reducing its temperature. Moreover, the lamp's placement in this application ensures that cooking fumes and steam do not directly contact the lamp, reducing the likelihood of corrosion and damage due to contamination. Additionally, placing the lamp within the air guide cavity prevents direct contact with the lamp when handling food, thus reducing the probability of burns. From another perspective, placing the lamp within the air guide cavity, with the side panel and air guide cover providing protection, eliminates the need for a separate lampshade, thereby reducing costs.

[0008] The lamp body is located in the air outlet path of the circulating fan.

[0009] This technical solution positions the lamp body within the airflow path of the circulating fan. The airflow generated by the fan directly blows over the lamp body, carrying away the heat generated during operation, thereby reducing the lamp body temperature and improving the lamp's heat dissipation efficiency. This efficient heat dissipation helps extend the lamp's lifespan, reducing lamp body damage or light decay caused by overheating, and ensuring stable and reliable lighting effects during cooking. Furthermore, the stable lighting effect and uniform light distribution allow users to more clearly observe the food's condition within the cooking cavity, enhancing the user's cooking experience and ease of operation.

[0010] The lamp body faces the air outlet area, which also constitutes the light-transmitting area.

[0011] If the air outlet and light transmission areas are separately located on the side panel, the number of openings on the side panel will increase, leading to a decrease in the structural strength of the side panel. In this technical solution, the lamp body faces the air outlet area, which also constitutes the light transmission area. This eliminates the need for separate light transmission holes on the side panel, reducing the number and complexity of components, making the overall structure of the side panel simpler, and helping to maintain the structural strength of the side panel and extend its service life. Furthermore, the air outlet area, as the airflow channel between the air guide cavity and the cooking cavity, inherently has exhaust and heat dissipation functions. With the lamp facing the air outlet area, the heat generated by the lamp body is more easily carried away by the exhaust airflow, further improving the lamp's heat dissipation efficiency, reducing the lamp body's operating temperature, and extending the lamp's service life.

[0012] The air outlet area is provided with multiple air outlets, and the extension direction of the lamp body is parallel to the extension direction of the long axis of the air outlet.

[0013] In this technical solution, the extension direction of the lamp body is parallel to the long axis of the air outlet. The structure of the air outlet does not obstruct the light, allowing the light to flow more smoothly along the airflow direction into the cooking cavity. This not only improves light utilization but also helps to distribute the light more evenly throughout the cooking cavity, avoiding uneven lighting caused by light refraction and reflection. Furthermore, the parallelism between the long axis of the air outlet and the lamp body's extension direction allows airflow to flow more smoothly over the lamp body surface, carrying away more heat and further improving heat dissipation efficiency. In addition, the parallelism between the long axis of the air outlet and the lamp body's extension direction reduces airflow resistance as it passes through the air outlet area. This not only helps to reduce energy loss and improve airflow circulation efficiency but also helps to create a more stable airflow field, reducing the probability of turbulence in the airflow through the air outlet area, thereby helping to reduce noise and improve the user experience.

[0014] The air intake area of ​​the air intake zone is larger than the air outlet area of ​​the air outlet zone.

[0015] Because of the larger air intake area, more hot air can enter the air guide cavity during cooking, mixing thoroughly with the cold air and exchanging heat. This improves the efficiency of hot air circulation, helps to enhance the uniformity of temperature distribution within the cooking cavity, resulting in more even heating of food and improved cooking outcomes. Furthermore, when the air intake area is larger than the exhaust area, airflow is smoother, and the smaller exhaust area allows for faster airflow at the exhaust location, further improving the heat dissipation efficiency of the lighting fixtures.

[0016] The air inlet area is provided with multiple air inlets, and the side plate is provided with a first guide rib protruding from the air inlet and perpendicular to the side plate. The first guide rib forms an air inlet channel surrounding the air inlet. Alternatively, the air outlet area is provided with multiple air outlets, and the side plate is provided with a second guide rib protruding towards the cooking cavity and inclined relative to the side plate on the periphery of the air outlet. The second guide rib forms an air outlet channel surrounding the air outlet. The inner diameter of the air inlet end of the air outlet channel is larger than the inner diameter of its air outlet end.

[0017] In this technical solution, the first guide rib can effectively guide the airflow direction entering the air guide cavity, allowing it to flow more smoothly into the air guide cavity, reducing airflow turbulence and resistance at the air inlet, and improving ventilation efficiency. Moreover, the air inlet channel formed by the first guide rib can evenly distribute the incoming airflow into the air guide cavity, avoiding excessively large or small local airflows, improving the uniformity of airflow distribution throughout the air guide cavity. This uniform airflow distribution helps hot air and cold air to mix and exchange heat more fully within the air guide cavity, improving heat exchange efficiency, thereby enhancing the effect of hot air circulation and making the temperature inside the cooking cavity more uniform.

[0018] The inclined design of the second guide rib in this technical solution effectively guides airflow from the inlet to the outlet of the air outlet channel, allowing the airflow to enter the cooking cavity more smoothly, reducing airflow turbulence and resistance in the outlet area, and improving ventilation efficiency. Furthermore, because the inner diameter of the inlet of the air outlet channel is larger than that of the outlet, according to the Venturi effect, the airflow velocity increases as it passes through the gradually narrowing channel. This increases the outlet velocity, meaning the airflow rate around the outlet area accelerates, thereby helping to improve the heat dissipation efficiency of the lighting fixtures.

[0019] The air guide cover includes a back plate facing the side plate, a surrounding plate connected to the periphery of the back plate and fastened to the side plate, a lighting lamp installed on the surrounding plate, and the lamp body of the lighting lamp extending into the air guide cavity in a direction parallel to the side plate.

[0020] In this technical solution, the lighting fixture is installed on the enclosure of the air guide and extends into the air guide cavity in a direction parallel to the side panel. This parallel installation helps reduce light reflection and refraction within the air guide cavity, avoiding unnecessary shadows and improving light utilization. Furthermore, the parallel installation of the lamp body to the side panel facilitates smooth airflow within the air guide cavity, thereby helping to dissipate heat from the lighting fixture, lowering its temperature, and extending its lifespan.

[0021] The enclosure panel is provided with a positioning hole adapted to the lighting lamp and a flange portion adjacent to the positioning hole. At least a portion of the flange portion is located below the lighting lamp and abuts against the lighting lamp to support the lighting lamp.

[0022] The positioning holes and the flange in this technical solution make the installation of the lighting fixture simpler and faster. No additional positioning tools or complex alignment steps are required to install the lighting fixture, thus improving assembly efficiency. Furthermore, at least a portion of the flange is located below and abuts against the lighting fixture, providing stable support and preventing displacement or shaking of the fixture due to vibration or thermal expansion during use, which could be caused by an insufficiently thin air guide cover. This enhances the stability of the lighting fixture after it is fixed in place.

[0023] The lighting lamp includes a lamp holder connected to the lamp body. One of the lamp holder and the flanged part is provided with a latch, and the other is provided with a slot adapted to the latch. The lighting lamp is snapped onto the enclosure through the latch and the slot engaging.

[0024] The design of the latch and slot on the lamp holder and flange in this technical solution makes the installation of the lighting fixture extremely simple. During installation, simply align the latch with the slot and gently push to complete the installation; no tools or complicated procedures are required, improving assembly efficiency. Furthermore, disassembly is easy; simply apply appropriate force to pull the latch out of the slot to easily remove the lighting fixture, facilitating maintenance and replacement. In addition, the cooperation between the latch and the slot provides a secure mechanical connection, improving the stability of the lighting fixture after installation and reducing the probability of loosening during use.

[0025] The lamp holder is provided with a stop step whose outer diameter is larger than the inner diameter of the positioning hole. The stop step and the flange are located on two opposite sides of the enclosure. The stop step abuts against the outer wall of the enclosure to restrict the lamp holder from moving into the air guide cavity.

[0026] In this technical solution, the stop step serves to clearly indicate the correct installation position of the lighting fixture during installation, preventing excessive pushing of the lamp holder and improving assembly efficiency. Furthermore, the stop step and the locking tongue and slot work together to prevent displacement of the lighting fixture within the airflow cavity and outwards. This synergy ensures both accurate installation and post-installation stability, preventing loosening during use and guaranteeing the stability and reliability of the lighting. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This application provides a three-dimensional representation of a portion of the structure of a cooking utensil according to one embodiment. Figure 1 ;

[0029] Figure 2 This application provides a three-dimensional representation of a portion of the structure of a cooking utensil according to one embodiment. Figure 2 ;

[0030] Figure 3 This is a side view of a portion of the structure of a cooking utensil according to one embodiment of this application;

[0031] Figure 4 This is a schematic diagram showing the relative positions of the circulating fan, air guide shroud, side plate, and lighting lamp in one embodiment of this application, where the arrows indicate the direction of airflow.

[0032] Figure 5 for Figure 4 Enlarged view of part A;

[0033] Figure 6 for Figure 4 Enlarged view of part B;

[0034] Figure 7 This is an exploded view of the air guide cover and lighting lamp according to one embodiment of this application;

[0035] Figure 8 This is an assembly diagram of the air guide cover and the lighting lamp according to one embodiment of this application.

[0036] in,

[0037] 1. Outer shell;

[0038] 2. Side panel; 21. Air inlet area; 211. Air inlet; 212. First guide rib; 22. Air outlet area; 221. Air outlet; 222. Second guide rib;

[0039] 3. Cooking cavity;

[0040] 4. Air guide cavity;

[0041] 5. Air guide cover; 51. Back panel; 52. Rear panel; 521. Positioning hole; 522. Flanged edge; 523. Tongue; 53. Top panel; 54. Bottom panel; 55. Front panel;

[0042] 6. Circulating fan;

[0043] 7. Lighting lamp; 71. Lamp body; 72. Lamp holder; 721. Slot; 722. Stop step. Detailed Implementation

[0044] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0045] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0046] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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 can be combined in any suitable manner in one or more embodiments or examples.

[0049] like Figures 1 to 4As shown, a cooking appliance includes an inner shell with a cooking cavity 3 and an outer shell 1 surrounding the outer side of the inner shell. A heating device is installed inside the cooking cavity 3. An air guide hood 5 is provided between the outer shell 1 and the inner shell. The air guide hood 5 and the side plate 2 of the inner shell cooperate to form an air guide cavity 4. A circulating fan 6 is installed inside the air guide cavity 4. The side plate 2 is provided with an air inlet area 21 and an air outlet area 22 that connect the cooking cavity 3 and the air guide cavity 4. The circulating fan 6 drives the airflow to circulate between the air guide cavity 4 and the cooking cavity 3. The cooking appliance also includes a lighting lamp 7. The lamp body 71 of the lighting lamp 7 is located inside the air guide cavity 4. The side plate 2 is also provided with a light-transmitting area facing the lighting lamp 7.

[0050] This application does not limit the specific type of cooking appliance, such as an oven, air fryer, microwave oven, steamer, or steam oven.

[0051] In this application, the lamp body 71 of the lighting lamp 7 is located inside the air guide cavity 4 rather than extending directly into the cooking cavity 3. This avoids direct baking of the lamp body 71 by the high temperature inside the cooking cavity 3. Simultaneously, the heat generated by the lamp body 71 is contained within the relatively low-temperature environment of the air guide cavity 4, reducing the temperature rise of the lamp body 71 and thus extending the service life of the lighting lamp 7, improving the stability and reliability of the lighting. Furthermore, the air guide cavity 4 has a circulating fan 6 driving airflow, providing good heat dissipation conditions for the lighting lamp 7 and further reducing the temperature of the lamp body 71. Moreover, the placement of the lighting lamp 7 in this application ensures that the fumes and steam generated during cooking do not directly contact the lighting lamp 7, thereby reducing the possibility of corrosion from fumes and steam and lowering the risk of damage to the lighting lamp 7 due to corrosion or contamination. In addition, placing the lighting lamp 7 inside the air guide cavity 4 prevents users from directly contacting the lighting lamp 7 when handling food, thus reducing the probability of burns. From another perspective, by placing the lighting lamp 7 inside the air guide cavity 4, the side plate 2 and the air guide cover 5 together form a protective barrier for the lighting lamp 7, eliminating the need for a lamp cover and thus reducing costs.

[0052] The specific location of the lighting lamp in this application can be any of the following embodiments:

[0053] Implementation Method 1: This implementation method is not illustrated. In this implementation method, the lamp body is positioned directly opposite the air intake area.

[0054] Implementation Method Two: (e.g.) Figure 3 and Figure 4As shown, the lamp body 71 of the lighting lamp 7 is located in the air outlet path of the circulating fan 6. In this second embodiment, the lamp body 71 of the lighting lamp 7 is positioned in the air outlet path of the circulating fan 6. The airflow generated by the circulating fan 6 can directly blow on the lamp body 71, carrying away the heat generated during operation, thereby reducing the temperature of the lamp body 71 and improving the heat dissipation efficiency of the lighting lamp 7. Efficient heat dissipation helps extend the service life of the lighting lamp 7, reducing damage to the lamp body 71 or light decay caused by overheating, and ensuring stable and reliable lighting effects during the use of the cooking appliance. The stable lighting effect and uniform light distribution also allow users to more clearly observe the state of the food in the cooking cavity 3, improving the user's cooking experience and ease of operation.

[0055] More specifically, in this second embodiment, the lighting fixture can be positioned in any of the following embodiments:

[0056] Example 1: This example 1 is not illustrated. In this example 1, the lighting lamp is located on the airflow path between the air inlet and outlet zones, and the light-transmitting zone is located between the air inlet and outlet zones. To prevent air from flowing through the light-transmitting zone, preferably, the side panel is provided with a light-transmitting opening and a light-transmitting element that covers the opening. The light-transmitting element is made of a light-transmitting material. The arrangement of the light-transmitting element allows the light from the lighting lamp to penetrate into the cooking cavity while preventing air from passing through the light-transmitting opening, thus ensuring the predetermined airflow path between the air inlet and outlet zones.

[0057] Example 2: As Figure 2 , Figure 3 and Figure 4 As shown, the lamp body 71 of the lighting lamp 7 faces the air outlet area 22, which also constitutes the light-transmitting area. If the air outlet area 22 and the light-transmitting area are separately provided on the side plate 2, the number of openings on the side plate 2 will increase, thereby reducing the structural strength of the side plate 2. In this embodiment 2, the lamp body 71 of the lighting lamp 7 faces the air outlet area 22, which also constitutes the light-transmitting area. There is no need to open a separate light-transmitting hole on the side plate 2, which not only reduces the number and complexity of components, making the overall structure of the side plate 2 simpler, but also helps to maintain the structural strength of the side plate 2 and extend its service life. Moreover, the air outlet area 22, as the airflow channel between the air guide cavity 4 and the cooking cavity 3, originally has the functions of exhaust and heat dissipation. With the lighting lamp 7 facing the air outlet area 22, the heat generated by the lamp body 71 is more easily carried away by the exhaust airflow, further improving the heat dissipation efficiency of the lighting lamp 7, reducing the operating temperature of the lamp body 71, and extending the service life of the lighting lamp 7.

[0058] In this embodiment 2, the relative positional relationship between the lighting lamp and the air outlet located in the air outlet area can be any one of the following examples:

[0059] Example 1: This example 1 is not illustrated. In this example 1, the air outlet area is provided with multiple air outlets, and the extension direction of the lamp body is perpendicular to the extension direction of the long axis of the air outlet.

[0060] Example 2: such as Figure 2 and Figure 3 As shown, the air outlet area 22 is provided with multiple air outlets 221, and the extension direction of the lamp body 71 of the lighting lamp 7 is parallel to the extension direction of the long axis of the air outlet 221. In this example 2, the extension direction of the lamp body 71 of the lighting lamp 7 is parallel to the long axis of the air outlet 221. The structure of the air outlet 221 does not obstruct the light, allowing the light to pass through the air outlet area 22 and enter the cooking cavity 3 more smoothly along the direction of the airflow. This not only improves the utilization rate of the light but also helps to distribute the light more evenly throughout the cooking cavity 3, avoiding uneven lighting caused by light refraction and reflection. Moreover, the parallelism between the long axis of the air outlet 221 and the extension direction of the lamp body 71 allows the airflow to flow more smoothly over the surface of the lamp body 71, carrying away more heat and further improving the heat dissipation efficiency. In addition, the long axis of the air outlet 221 is parallel to the extension direction of the lamp body 71, which makes the airflow less resistant when passing through the air outlet area 22. This not only helps to reduce the energy loss of the airflow and improve the airflow circulation efficiency, but also helps to form a more stable airflow field and reduce the probability of turbulence generated when the airflow passes through the air outlet area 22, thereby helping to reduce noise and improve the user experience.

[0061] The shape of the air outlet 221 is not limited; it can be elongated, circular, elliptical, etc. When the air outlet 221 is circular, its major axis direction refers to its diameter direction.

[0062] As a preferred embodiment of this application, such as Figure 3 As shown, the air intake area of ​​the air intake zone 21 is larger than the air outlet area of ​​the air outlet zone 22. Due to the larger air intake area of ​​the air intake zone 21, more hot air can enter the air guide cavity 4 during cooking, mixing thoroughly with the cold air and exchanging heat, improving the hot air circulation efficiency. This helps to improve the uniformity of temperature distribution within the cooking cavity 3, resulting in more even heating of the food and improved cooking performance. Furthermore, when the air intake area is larger than the air outlet area, airflow is smoother, and the smaller air outlet area allows for faster airflow at the air outlet zone 22, further enhancing the heat dissipation efficiency of the lighting lamp 7.

[0063] In a preferred embodiment of this implementation, the ratio W of the air inlet area of ​​the air inlet zone 21 to the air outlet area of ​​the air outlet zone 22 satisfies: 1 ≤ W ≤ 3. By optimizing the relationship between the air inlet area of ​​the air inlet zone 21 and the air outlet area of ​​the air outlet zone 22, the hot air circulation efficiency can be further optimized and the airflow performance improved.

[0064] The design of the air inlet in the air intake area of ​​this application can adopt any of the following embodiments:

[0065] Implementation Method 3: For example Figure 4 and Figure 5 As shown, the air inlet area 21 is provided with multiple air inlets 211. The side plate 2 has first guide ribs 212 protruding from the air inlets 211 and perpendicular to the side plate 2, forming an air inlet channel surrounding the air inlets 211. In this third embodiment, the first guide ribs 212 can effectively guide the airflow direction entering the air inlet cavity 4, allowing it to flow more smoothly into the air inlet cavity 4, reducing airflow turbulence and resistance at the air inlets 211, and improving ventilation efficiency. Furthermore, the air inlet channel formed by the first guide ribs 212 can evenly distribute the incoming airflow into the air inlet cavity 4, avoiding excessively large or small local airflows, improving the uniformity of airflow distribution throughout the air inlet cavity 4. This uniform airflow distribution helps hot and cold air mix and exchange heat more fully within the air inlet cavity 4, improving heat exchange efficiency and enhancing the effect of hot air circulation, making the temperature within the cooking cavity 3 more uniform.

[0066] Implementation Method Four: This implementation method four is not illustrated. In this implementation method four, the air inlet area is provided with multiple air inlets. The side plate is provided with first guide ribs protruding from the air inlets around the air inlets. The first guide ribs form an air inlet channel surrounding the air inlets. The first guide ribs are arranged at an angle relative to the side plate so that the inner diameter of the air inlet end of the air inlet channel is larger than the inner diameter of its air outlet end. This arrangement allows airflow to easily enter through the air inlet end of the air inlet channel and quickly flow into the guide cavity from the air outlet end.

[0067] Implementation Method 5: This implementation method 5 is not illustrated. In this implementation method 5, the air inlet area is provided with multiple air inlets. The air inlets are not provided with the first guide rib as in implementation method 3 or implementation method 4, but are simply open structures.

[0068] The design of the air outlet in the air outlet area of ​​this application can adopt any of the following embodiments:

[0069] Implementation method six: such as Figure 4 and Figure 6As shown, the air outlet area 22 is provided with multiple air outlets 221. The side plate 2 has second guide ribs 222 protruding towards the cooking cavity 3 and inclined relative to the side plate 2 around the air outlets 221. The second guide ribs 222 form an air outlet channel surrounding the air outlets 221, with the inner diameter of the air inlet end of the air outlet channel being larger than the inner diameter of its air outlet end. The inclined arrangement of the second guide ribs 222 in this sixth embodiment effectively guides the airflow from the air inlet end to the air outlet end of the air outlet channel, allowing the airflow to enter the cooking cavity 3 more smoothly, reducing airflow turbulence and resistance in the air outlet area 22, and improving ventilation efficiency. Furthermore, since the inner diameter of the air inlet end of the air outlet channel is larger than the inner diameter of the air outlet end, according to the Venturi effect, the airflow speed increases when passing through the gradually narrowing channel, which accelerates the airflow speed, i.e., the airflow rate around the air outlet area 22 accelerates, thereby helping to improve the heat dissipation efficiency of the lighting lamp 7.

[0070] Implementation Method 7: This implementation method 7 is not illustrated. In this implementation method 7, the air outlet area is provided with multiple air outlets. The side plate is provided with a second guide rib protruding towards the cooking cavity and perpendicular to the side plate around the air outlet. The second guide rib forms an air outlet channel surrounding the air outlet.

[0071] Implementation Method 8: This implementation method 8 is not illustrated. In this implementation method 8, the air outlet area is provided with multiple air outlets. The air outlets are not provided with the second guide ribs as in implementation method 6 or implementation method 7, but are simply open structures.

[0072] As a preferred embodiment of this application, such as Figure 2 , Figure 7 and Figure 8 As shown, the air guide shroud 5 includes a back plate 51 directly opposite the side plate 2, and a surrounding plate connected to the periphery of the back plate 51 and fastened to the side plate 2. The lighting lamp 7 is mounted on the surrounding plate, and the lamp body 71 of the lighting lamp 7 extends into the air guide cavity 4 in a direction parallel to the side plate 2. In this embodiment, the lighting lamp 7 is mounted on the surrounding plate of the air guide shroud 5 and extends into the air guide cavity 4 in a direction parallel to the side plate 2. This parallel mounting helps reduce light reflection and refraction within the air guide cavity 4, avoiding unnecessary shadows and improving light utilization. Furthermore, the parallel mounting of the lamp body 71 to the side plate 2 facilitates smooth airflow within the air guide cavity 4, thereby helping to remove heat from the lighting lamp 7, reducing the temperature of the lamp body 71, and extending the lifespan of the lighting lamp 7.

[0073] like Figure 2 , Figure 4 and Figure 7 As shown, the enclosure includes a front panel 55, a rear panel 52, a top panel 53, and a bottom panel 54. The front panel 55 and the rear panel 52 are relative to the opening of the cooking cavity 3 of the cooking appliance. The side closer to the opening of the cooking cavity 3 is the front, and the side farther away from the opening of the cooking cavity 3 is the rear.

[0074] The lighting fixture can be installed on the enclosure in any of the following embodiments:

[0075] Example 3: This example 3 is not illustrated. In this example 3, the top plate is provided with a positioning hole adapted to the lighting lamp, and the lamp body extends into the cooking cavity through the positioning hole.

[0076] Example 4: Figure 7 and Figure 8 As shown, the rear plate 52 is provided with a positioning hole 521 adapted to the lighting lamp 7 and a flange portion 522 adjacent to the positioning hole 521. At least a portion of the flange portion 522 is located below the lighting lamp 7 and abuts against the lighting lamp 7 to support the lighting lamp 7. In this embodiment 4, the cooperation between the positioning hole 521 and the flange portion 522 makes the installation of the lighting lamp 7 simpler and faster. The lighting lamp 7 can be installed in place without additional positioning tools or complicated alignment steps, which helps to improve assembly efficiency. Moreover, at least a portion of the flange portion 522 is located below the lighting lamp 7 and abuts against it, which can provide stable support for the lighting lamp 7 and prevent the lamp body 71 from shifting or shaking during use due to vibration or thermal expansion caused by the thinness of the air guide shroud 5, thereby improving the stability of the lighting lamp 7 after it is fixed.

[0077] In this embodiment 4, the specific installation method of the lighting lamp and the rear panel can be any of the following examples:

[0078] Example 3: such as Figure 7 and Figure 8 As shown, the lighting lamp 7 includes a lamp holder 72 connected to the lamp body 71. The flanged portion 522 has a latch 523, and the lamp holder 72 has a slot 721 that mates with the latch 523. The lighting lamp 7 is latched to the enclosure plate through the engagement of the latch 523 and the slot 721. Alternatively, the slot 721 can be provided on the flanged portion 522, and the latch 523 that mates with the slot 721 can be provided on the lamp holder 72. The design of the lamp holder 72 and the latch 523 and slot 721 on the flanged portion 522 in this example 3 makes the installation of the lighting lamp 7 very simple. During installation, simply align the latch 523 with the slot 721 and gently push to complete the installation; no tools or complicated procedures are required, improving assembly efficiency. Furthermore, during disassembly, only appropriate force needs to be applied to pull the latch 523 out of the slot 721 to easily remove the lighting lamp 7, facilitating maintenance and replacement of the lighting lamp 7. In addition, the cooperation between the latch 523 and the slot 721 provides a stable mechanical connection, which improves the stability of the lighting lamp 7 after installation and reduces the probability of the lighting lamp 7 becoming loose during use.

[0079] Furthermore, such as Figure 7 and Figure 8As shown, the lamp holder 72 has a stop step 722 with an outer diameter larger than the inner diameter of the positioning hole 521. The stop step 722 and the flange 522 are located on opposite sides of the enclosure. The stop step 722 abuts against the outer wall of the enclosure to limit the displacement of the lamp holder 72 into the air cavity 4. The stop step 722 serves to clearly indicate the correct installation position of the lighting lamp 7 during installation, preventing excessive pushing of the lamp holder 72 and improving assembly efficiency. Moreover, the stop step 722 and the locking tongue 523 and the locking groove 721 work together to prevent the lighting lamp 7 from shifting into the air cavity 4 and from shifting out of the air cavity 4. The two work together to ensure the accuracy of the installation position of the lighting lamp 7 and the stability after installation, preventing loosening during use and thus ensuring the stability and reliability of the lighting.

[0080] Example 4: This example 4 is not illustrated. In this example 4, the lighting lamp includes a lamp holder connected to the lamp body. The lamp holder has a first mounting hole, and the surrounding plate has a second mounting hole. The lamp holder is fixed to the surrounding plate by fasteners passing through the first mounting hole and the second mounting hole.

[0081] Example 5: This example 5 is not illustrated. In this example 5, the lighting lamp includes a lamp holder connected to the lamp body. One of the lamp holder and the surrounding plate is provided with a magnetic element, and the other of the two is provided with a mating element that magnetically engages with the magnetic element. The lamp holder is fixed to the surrounding plate by the magnetic attraction of the magnetic element and the mating element.

[0082] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0083] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0084] The above descriptions are merely embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A cooking appliance, comprising an inner shell having a cooking cavity and an outer shell surrounding the outer side of the inner shell, wherein a heating device is disposed within the cooking cavity, a wind guide hood is disposed between the outer shell and the inner shell, the wind guide hood and a side plate of the inner shell cooperate to form a wind guide cavity, a circulating fan is disposed within the wind guide cavity, the side plate is provided with an air inlet area and an air outlet area communicating between the cooking cavity and the wind guide cavity, and the circulating fan drives airflow to circulate between the wind guide cavity and the cooking cavity, characterized in that, The cooking appliance also includes a light, the lamp body of which is located inside the air guide cavity, and the side plate is also provided with a light-transmitting area facing the light.

2. A cooking utensil according to claim 1, characterized in that, The lamp body is located in the air outlet path of the circulating fan.

3. A cooking utensil according to claim 2, characterized in that, The lamp body faces the air outlet area, which also constitutes the light-transmitting area.

4. A cooking utensil according to claim 3, characterized in that, The air outlet area is provided with multiple air outlets, and the extension direction of the lamp body is parallel to the extension direction of the long axis of the air outlet.

5. A cooking utensil according to claim 1, characterized in that, The air intake area of ​​the air intake zone is larger than the air outlet area of ​​the air outlet zone.

6. A cooking utensil according to claim 1, characterized in that, The air inlet area is provided with multiple air inlets, and the side plate is provided with a first guide rib protruding from the air inlet and perpendicular to the side plate. The first guide rib forms an air inlet channel surrounding the air inlet. Alternatively, the air outlet area is provided with multiple air outlets, and the side plate is provided with a second guide rib protruding towards the cooking cavity and inclined relative to the side plate on the periphery of the air outlet. The second guide rib forms an air outlet channel surrounding the air outlet, and the inner diameter of the air inlet end of the air outlet channel is larger than the inner diameter of its air outlet end.

7. A cooking utensil according to claim 1, characterized in that, The air guide cover includes a back plate facing the side plate, a surrounding plate connected to the periphery of the back plate and fastened to the side plate, a lighting lamp installed on the surrounding plate, and the lamp body of the lighting lamp extending into the air guide cavity in a direction parallel to the side plate.

8. A cooking utensil according to claim 7, characterized in that, The enclosure panel is provided with a positioning hole adapted to the lighting lamp and a flange portion adjacent to the positioning hole. At least a portion of the flange portion is located below the lighting lamp and abuts against the lighting lamp to support the lighting lamp.

9. A cooking utensil according to claim 8, characterized in that, The lighting lamp includes a lamp holder connected to the lamp body. One of the lamp holder and the flanged part is provided with a latch, and the other is provided with a slot adapted to the latch. The lighting lamp is snapped onto the enclosure through the latch and the slot engaging.

10. A cooking utensil according to claim 9, characterized in that, The lamp holder is provided with a stop step whose outer diameter is larger than the inner diameter of the positioning hole. The stop step and the flange are located on two opposite sides of the enclosure. The stop step abuts against the outer wall of the enclosure to restrict the lamp holder from moving into the air guide cavity.

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