Frying and baking device with visual window demisting function and independent frying and baking device

Abstract

The invention relates to the technical field of frying and baking devices, in particular to a frying and baking device with a visual window demisting function, an exhaust port is formed in a base, a fan is arranged on the base, a lower cover air duct is formed in a lower cover hinge, the exhaust port is communicated with an air inlet of the fan, and the lower cover air duct is communicated with an air outlet of the fan; an air inlet is formed in the upper cover, an upper cover air duct is formed in the upper cover hinge, the upper cover air duct is connected with the air inlet, and the air inlet corresponds to the visual window; and the upper cover air duct is communicated with the lower cover air duct. The air flow is driven by the fan to form circulation through the lower cover air duct and the upper cover air duct, the air flow with residual heat is guided to the surface of the visual window for continuous demisting, and the problem that the visual window fogs in the frying and baking process is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wall-breaking soymilk machines, in particular to a grill with a visual window demisting function and a grill. Background Art

[0002] As living standards continue to improve, people are increasingly experiencing and enjoying life, leading to a surge in outdoor grilling products. As people become more discerning about the taste of their food, grilling products are becoming more versatile, incorporating features like steaming and smoking. This has led to increasing performance requirements and, consequently, increasing user experience. To enhance the user experience, modern grills often feature a viewing window, allowing users to observe the cooking process inside the cooking cavity in real time, allowing them to adjust operating parameters based on their cooking needs. This is illustrated in Chinese Patent Publication No. CN215993712U. However, existing grills suffer from a significant technical drawback in practical use: the grilling process generates a large amount of high-temperature water vapor, which easily condenses on the viewing window, forming mist. This severely obstructs the user's view and significantly reduces the window's practical value. This issue is particularly pronounced in cold environments or high humidity, sometimes even rendering the viewing window completely inoperable.

[0003] In view of the above problems, the existing technology is in urgent need of improvement. Summary of the Invention

[0004] The object of the present invention is to provide a grill with a visual window demisting function and the grill, which has the advantages of effectively preventing water mist from condensing on the visual window surface and maintaining a clear viewing line of sight.

[0005] The present invention provides a grill with a visual window demisting function, comprising a base and an upper cover, wherein a lower cover hinge is provided on one side of the base, and an upper cover hinge is provided on a corresponding side of the upper cover, and the base and the upper cover are hingedly connected by the lower cover hinge and the upper cover hinge; a heating element and a grilling pan arranged on the heating element are provided on the base, and a visual window is provided on the upper cover, characterized in that an exhaust port is provided on the base, a fan is provided on the base, a lower cover air duct is formed in the lower cover hinge, the exhaust port is connected to the air inlet of the fan, and the lower cover air duct is connected to the air outlet of the fan; an air inlet is provided on the upper cover, an upper cover air duct is formed in the upper cover hinge, the upper cover air duct is connected to the air inlet, and the air inlet is arranged corresponding to the visual window; the upper cover air duct is communicated with the lower cover air duct.

[0006] Furthermore, the present invention also proposes that the upper cover is provided with a manual smoke exhaust mechanism, and the air inlet and the manual smoke exhaust mechanism are respectively provided on both sides of the viewing window.

[0007] Furthermore, the present invention also proposes that the manual smoke exhaust mechanism includes a smoke exhaust port provided on the upper cover and a manual smoke exhaust valve.

[0008] Furthermore, the present invention also proposes that the air outlet opening is arranged upward, and a water baffle is provided in the lower cover air duct, and the water baffle is arranged directly above the air outlet to prevent rainwater from entering the fan through the air outlet.

[0009] Furthermore, the present invention also proposes that two water retaining bars are provided in the lower cover air duct, the air outlet is surrounded by the inner wall of the lower cover hinge, the base and the two water retaining bars, the two water retaining bars are arranged in an eight-shape, and a sewer is formed on the outside of the two water retaining bars, and the sewer is connected to the bottom of the base.

[0010] Furthermore, the present invention also proposes that the water baffle is arranged in an arc shape, the arc bottom of the arc-shaped water baffle is located above the air outlet, and channels are formed on both sides of the arc-shaped water baffle to communicate with the upper cover air duct.

[0011] Furthermore, the present invention also proposes to include a controller, a contact switch is provided on the base, the contact switch is arranged corresponding to the upper cover, the contact switch can be turned on when the upper cover covers the base, the contact switch is electrically connected to the controller, and the controller is electrically connected to the heating element and the fan.

[0012] Furthermore, the present invention also proposes that the base is provided with a fumigation device, and the controller is electrically connected to the fumigation device.

[0013] Furthermore, the present invention also proposes an independent grilling device, comprising a base, a lower cover hinge being provided on one side of the base, a heating element and a grilling pan being provided on the heating element, and characterized in that an exhaust port is provided on the base, a fan is provided on the base, a lower cover air duct is formed in the lower cover hinge, the exhaust port is connected to the air inlet of the fan, and the lower cover air duct is connected to the air outlet of the fan.

[0014] Furthermore, the present invention also proposes that the air outlet opening is arranged upward, and a water baffle is provided in the lower cover air duct, and the water baffle is arranged directly above the air outlet to prevent rainwater from entering the fan through the air outlet.

[0015] From the above, it can be seen that the grilling device provided by the present invention has a visual window demisting function. The fan drives the air flow through the lower cover air duct and the upper cover air duct to form a circulation, and the air flow with residual temperature is directed to the visual window surface for continuous demisting, which effectively solves the problem of fogging of the visual window during the grilling process, and has the advantages of keeping the observation window clear and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the assembled structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the window in the defogging state of the present invention;

[0019] Figure 4 This is a schematic diagram of the smoke exhaust state structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the air outlet and water baffle structure of the present invention;

[0021] Figure 6 It is a structural schematic diagram of another embodiment of the present invention.

[0022] In the picture:

[0023] 1. Upper cover; 11. Visual window; 12. Manual smoke exhaust mechanism; 14. Air inlet; 21. Upper cover hinge; 22. Lower cover hinge; 211. Upper cover air duct; 221. Lower cover air duct; 3. Controller; 31. Contact switch; 4. Base; 41. Exhaust port; 5. Baking tray; 6. Fan; 61. Water retaining bar; 62. Water retaining plate; 63. Air outlet; 64. Drain; 7. Smoke device; 8. Heating element. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described below with reference to the accompanying drawings and embodiments.

[0025] With the increasing popularity of outdoor grilling and frying products, users are increasingly demanding visual access to the cooking process. While traditional grills feature viewing windows, the moisture generated during cooking easily condenses on the transparent surface, forming a foggy film and hindering observation. Patented patent CN215993712U utilizes a conventional ventilation structure, but this suffers from issues such as dispersed airflow paths and conflicts between the mechanical structure and heat source layout, making it impossible to achieve sustained and effective demisting.

[0026] To address this issue, researchers discovered that the root cause of condensation lies in the temperature and humidity differences between the inside and outside of the cooking chamber. Conventional external circulation ventilation, while capable of introducing outside air, can destabilize the cooking environment. Observing the hinge's movement revealed its internal space has the potential to form a sealed passage. This led to a technical concept: a directional airflow circulation system built into the device's inherent structure, utilizing the hinge's internal space to form an air duct, discharging hot, humid air in a targeted manner and directing dry airflow onto the viewing window surface.

[0027] like Figure 1-5As shown, the present invention proposes a grill with a visual window demisting function, comprising a base 4 and an upper cover 1. A lower cover hinge 22 is provided on one side of the base 4, and an upper cover hinge 21 is provided on the corresponding side of the upper cover 1. The base 4 and the upper cover 1 are hingedly connected by the upper cover hinge 21 and the lower cover hinge 22. A heating element 8 and a grilling tray 5 are provided on the base 4, and a visual window 11 is provided on the upper cover 1. The base 4 is provided with an exhaust port 41 and a fan 6. A lower cover air duct 221 is formed in the lower cover hinge 22. The exhaust port 41 is connected to the air inlet of the fan 6, and the lower cover air duct 221 is connected to the air outlet 63 of the fan 6. The upper cover 1 is provided with an air inlet 14 corresponding to the visual window 11. An upper cover air duct 211 is formed in the upper cover hinge 21 to connect to the air inlet 14. The upper cover air duct 211 is communicated with the lower cover air duct 221.

[0028] Among them, the lower cover air duct 221 is formed in the lower cover hinge 22, which means that a closed air channel is formed inside the hinge through a mold forming process. Specifically, an injection molding process can be used to reserve a cavity structure inside the hinge. This structure not only maintains the mechanical strength of the hinge, but also forms a gas transmission path. The upper cover air duct 211 is connected to the lower cover air duct 221, which means that the two air ducts form a docking structure when the hinge is closed. Specifically, an annular sealing ring can be used to achieve sealing of the docking position to ensure the continuity of airflow transmission. The air inlet 14 is set corresponding to the visual window 11, which means that the air intake of the air inlet 14 can affect the inner surface of the visual window 11. Specifically, an inclined guide groove design can be used to make the airflow impact the inner surface of the visual window 11 at a specific angle.

[0029] Specifically, after the fan 6 is started, it extracts the hot and humid air from the cooking cavity through the exhaust port 41. After being pressurized by the fan 6, it enters the lower cover air duct 221 through the air outlet 63. The airflow is transmitted upward along the lower cover air duct 221 and enters the upper cover air duct 211 through the hinge connection. The dry airflow is ejected in a direction from the air inlet 14 at the end of the upper cover air duct 211, forming a laminar airflow covering the inner surface of the viewing window 11. After carrying away the moisture, this airflow re-enters the cooking cavity, forming a closed-loop circulation system. The integrated design of the air duct inside the hinge and the mechanical structure ensures that the airflow path does not interfere with the opening and closing action of the device, while avoiding the additional occupation of the cooking cavity space.

[0030] Compared to existing technologies, traditional solutions require independent air ducts inside the cooking cavity, which limits the layout of the heat source and makes cleaning difficult. This solution integrates the airflow channel into the hinge structure, maintaining the compactness of the device while ensuring compatibility between the airflow path and mechanical movement. Compared to external circulation ventilation, the closed-loop airflow system prevents external contaminants from entering the cooking environment while reducing heat loss. The directional airflow injection method significantly improves demisting efficiency compared to natural convection without excessive drying of the food surface.

[0031] Through the above-mentioned technical solution, the present invention achieves continuous airflow coverage of the inner surface of the viewing window 11 during cooking, effectively preventing condensation and the formation of a mist film. While maintaining a stable cooking temperature, the closed-loop circulation system exhausts hot and humid air in a targeted manner and converts it into a dry airflow, creating a self-sustaining defogger mechanism. The hinged integrated air duct design eliminates the spatial conflict between traditional defoggers and the device structure, allowing the airflow path to operate in harmony with the mechanical movement.

[0032] The present invention further proposes that the upper cover 1 is provided with a manual smoke exhaust mechanism 12 , and the air inlet 14 and the manual smoke exhaust mechanism 12 are respectively provided on both sides of the viewing window 11 .

[0033] The manual smoke exhaust mechanism 12 is a device that mechanically controls smoke emission, and can be implemented as a smoke exhaust port with a rotary valve. The opening and closing of the smoke exhaust port can be adjusted by manual rotation or sliding. The air inlet 14 is a channel structure that guides external air in, and can be implemented as a hole structure with a filter. Its position is configured to align with the inner surface area of ​​the viewing window 11.

[0034] Specifically, when the fan 6 is started, the hot and humid gas in the cooking cavity enters the interior of the upper cover 1 through the air inlet 14 to form a directional airflow, and the airflow flows horizontally along the inner surface of the visual window 11 to the side of the manual smoke exhaust mechanism 12. The manual smoke exhaust mechanism 12 allows the user to adjust the smoke exhaust efficiency in real time according to the amount of smoke generated during the cooking process by physically blocking or opening the smoke exhaust channel. The symmetrical layout of the air inlet 14 and the manual smoke exhaust mechanism 12 forms a horizontal airflow coverage path, and the airflow forms a laminar flow state on the inner surface of the visual window 11, synchronously carrying away the water vapor and smoke particles attached to the inner surface of the visual window 11. When the manual smoke exhaust mechanism 12 is in the open state, the condensed water mist carried by the airflow is discharged outward through the smoke exhaust port, and when the manual smoke exhaust mechanism 12 is closed, the airflow can still maintain the basic demisting function through the built-in gap.

[0035] The present invention further proposes that the manual smoke exhaust mechanism 12 includes a smoke exhaust port 121 and a manual smoke exhaust valve 122 provided on the upper cover.

[0036] The smoke exhaust port 121 is a physical opening structure provided on the upper cover 1, specifically a circular or rectangular hole. Its position corresponds to the side area of ​​the viewing window 11 and is used to guide the smoke out in a targeted manner. The manual smoke exhaust valve 122 is a mechanical valve with manually adjustable opening, specifically a rotary valve or a sliding valve structure. The cross-sectional area of ​​the smoke exhaust port is changed by the displacement of the valve body, thereby controlling the smoke emission rate.

[0037] Specifically, the combination of the smoke exhaust port 121 and the manual smoke exhaust valve 122 forms an adjustable smoke exhaust channel. When smoke is generated during cooking, the user manually adjusts the opening of the manual smoke exhaust valve 122 according to the smoke concentration. For example, when frying or grilling ingredients with a high fat content, the manual smoke exhaust valve 122 is fully opened to quickly exhaust the thick smoke; when slowly baking at a low temperature, the manual smoke exhaust valve 122 is partially closed to maintain the temperature of the cooking cavity. The smoke exhaust port 121 and the air inlet 14 are respectively arranged on both sides of the visual window, so that a horizontal airflow is formed during the smoke exhaust process to pass through the inner surface of the visual window 11, accelerating the evaporation of attached water vapor. The mechanical structure of the manual smoke exhaust valve 12 does not need to rely on electronic components and can still operate stably in humid or dusty outdoor environments.

[0038] The present invention further proposes that the air outlet 63 is opened upward, and a water baffle 62 is provided in the lower cover air duct 221. The water baffle 62 is provided directly above the air outlet 63 to prevent rainwater from entering the fan through the air outlet 63.

[0039] The upward-facing opening of air outlet 63 indicates that the exhaust from the fan is directed vertically upward. This can be achieved using a rectangular or circular opening structure, which utilizes the natural upward trend of airflow to improve exhaust efficiency. Water shield 62 is a physical shielding component located above air outlet 63. It can be made of metal or high-temperature-resistant plastic. Its planar projection area covers the opening area of ​​air outlet 63, preventing vertically falling rainwater from directly entering the interior of air outlet 63.

[0040] Specifically, when the fan 6 is running, airflow is discharged upward from the air outlet 63 to form an exhaust path. The water baffle 62 is mounted on the top of the lower cover air duct 221 through a fixed structure, and its bottom edge maintains a certain distance from the opening of the air outlet 63, for example, the distance range is 10-25 mm. When rainwater falls from above the equipment, it first contacts the surface of the water baffle 62, and then flows to both sides along its inclined or curved structure, and finally discharged through the drainage path on the side wall of the air duct. The airflow enters the air duct from the gaps on both sides of the water baffle 62, maintaining normal exhaust function.

[0041] The present invention further proposes that two water retaining bars 61 are provided in the lower cover air duct 221, and the air outlet 63 is surrounded by the inner wall of the lower cover hinge 22, the outer wall of the base 4 and the two water retaining bars 61. The two water retaining bars 61 are arranged in an eight-shaped shape, and a sewer 64 is formed on the outside of the two water retaining bars 61, and the sewer 64 is connected to the bottom of the base 4.

[0042] Among them, the water retaining bar 61 refers to a raised structure provided in the lower cover air duct 221, which can be specifically formed integrally with the lower cover hinge 22 using an injection molding process, and is used to limit the boundary of the air outlet 63 and prevent the liquid from flowing into the fan 6. The figure-eight arrangement refers to the two water retaining bars 61 being symmetrically distributed in a gradually expanding manner, and can specifically be arranged with an inclination angle of 30° to 60°, which is used to guide the liquid to flow along the outside. The sewer 64 refers to a diversion channel formed by the outer side of the water retaining bar 61 and the inner wall of the lower cover hinge 22, which can be connected by opening a drainage hole at the bottom 4 of the base to discharge the accumulated water to the outside of the equipment.

[0043] Specifically, when external rainwater or condensation contacts the air outlet 63 area, the figure-eight structure formed by the two water retaining bars 61 prevents the liquid from directly entering the fan 6. The liquid flows along the outer inclined surface of the water retaining bar 61 to the sewer 64 and is discharged through the drainage holes in the bottom of the base 4. The air outlet 63 is formed by the water retaining bar 61 and the base 4 structure. While ensuring the ventilation cross-sectional area, it also achieves waterproofing through physical isolation. This structure separates the liquid flow path from the air flow path, preventing water accumulation from affecting the normal operation of the air duct.

[0044] The present invention further proposes that the water baffle 62 is arranged in an arc shape, the arc bottom of the arc-shaped water baffle 62 is located above the air outlet 63, and channels are formed on both sides of the arc-shaped water baffle 62 to communicate with the upper cover air duct 211.

[0045] Among them, the arc-shaped water baffle 62 refers to a plate-like structure with a continuously curved surface, which can be specifically realized by stamping or injection molding. The arc bottom covers the air outlet 63 directly above to form a physical barrier layer for intercepting vertically falling liquid.

[0046] Specifically, when external liquid enters from the air outlet 63, the curved surface of the arc-shaped water baffle 62 forces the liquid to flow along the sides, preventing it from directly entering the interior of the fan 6. Simultaneously, as air flows upward from the air outlet 63, it is blocked by the bottom of the water baffle 62 and diverted to the two side channels, through which it enters the upper cover air duct 211 and completes the circulation. This structure blocks liquid intrusion while preserving the cross-sectional area for airflow, ensuring that the air volume required for demisting is not obstructed.

[0047] The present invention further proposes a grill including a controller 3, a contact switch 31 is provided on the base 4, and the contact switch 31 is arranged corresponding to the upper cover 1. When the upper cover 1 covers the base 4, the contact switch 31 can be turned on. The contact switch 31 is electrically connected to the controller 3, and the controller 3 is electrically connected to the heating element 8 and the fan 6.

[0048] The controller 3 refers to a core control unit for receiving signals and controlling the operation of the heating element 8 and the fan 6. Specifically, it can be implemented using a microprocessor or an integrated circuit board, and the start and stop control of the equipment is realized through preset program logic. The contact switch 31 refers to a trigger device that realizes the circuit opening and closing through mechanical contact. Specifically, it can be a spring-loaded microswitch or a magnetic induction proximity switch. When the upper cover 1 is closed, the switch state is changed through physical contact. Electrical connection refers to the transmission of electrical signals through wires or circuit boards. Specifically, it can be implemented by plug-in terminals or welding to ensure that the controller 3 can receive the contact switch signal and control the power supply of the heating element 8 and the fan 6.

[0049] Specifically, when the upper cover 1 is closed, its edge comes into contact with the contact switch 31 on the base 4, causing the contact switch 31 to switch from an off state to an on state. After the signal input end of the controller 3 detects that the contact switch 31 is turned on, it immediately outputs a heating instruction to the heating element 8 and sends a start signal to the fan 6. After the heating element 8 is energized, it heats the baking tray 5, and the fan 6 runs synchronously to discharge the hot and humid air in the cooking cavity through the air duct system. The triggering condition of the contact switch 31 is limited to the fully closed state of the upper cover 1 to avoid the heating and defogger functions being mistakenly triggered when the upper cover 1 is not closed. The synchronous control logic of the controller 3 ensures that the heating element 8 and the fan 6 are started at the same time, so that the visual window 11 can form an air circulation at the initial stage of cooking to prevent water vapor condensation.

[0050] The present invention further proposes that a fumigation device 7 is provided on the base, and the controller 3 is electrically connected to the fumigation device 7 .

[0051] The fumigation device 7 is a functional module located within the base for generating smoke. Specifically, it can be implemented using an electrically heated fumigation material box. The heated fumigation material generates smoke that permeates the cooking cavity. This device simultaneously creates a smoke flavor during the cooking process, while its installation position creates a spatial separation from the viewing window 11. The controller 3 is electrically connected to the fumigation device 7, establishing a signal transmission relationship between the control module and the fumigation device 7 through circuitry. Specifically, this can be implemented using a microprocessor and relay combination circuit, enabling the controller 3 to receive sensor signals and output control commands. This connection provides the hardware foundation for the coordinated operation of the fumigation function and the defogger system.

[0052] Specifically, when the fumigation device 7 is activated, the controller 3 sends adjustment instructions to the fan 6 according to a preset program, such as increasing the fan 6 speed to a preset threshold range. At this point, the airflow path generated by the fan 6 is replanned, and the smoke flows along a specific channel under the guidance of negative pressure, avoiding direct contact with the inner surface of the viewing window 11. When the humidity sensor on the surface of the viewing window 11 detects the risk of fogging, the controller 3 prioritizes the demisting mode, temporarily reducing the power of the fumigation device or cutting off its power supply until demisting is complete. This dynamic control mechanism ensures that the total amount of smoke generated by the fumigation is always within the processing capacity of the fan 6, while also achieving physical isolation between the smoke and the viewing window 11 through airflow path control.

[0053] like Figure 6 As shown, the present invention further provides a standalone grill, comprising a base 4 with a lower cover hinge 22 disposed on one side thereof. A heating element 8 and a grilling pan 5 disposed on the heating element 8 are disposed on the base 4. An exhaust port 41 is disposed on the base 4, and a fan 6 is disposed on the base 4. A lower cover air duct 221 is formed within the lower cover hinge 22, connecting the exhaust port 41 to the air inlet of the fan 6, and the lower cover air duct 221 to the air outlet 63 of the fan 6. This structure is the same as the previous solution, but with the upper cover 1 removed and used alone.

[0054] Among them, the lower cover hinge 22 refers to the rotating component connecting the base 4 and the upper cover 1, which can be specifically implemented by a metal hinge structure, and its interior is constructed into a hollow channel to form a lower cover air duct 221. Among them, the lower cover air duct 221 refers to the guide space located inside the lower cover hinge, which can be specifically integrally formed through an injection molding process, and is used to guide the gas to be discharged outward from the air outlet 63. Among them, the exhaust port 41 refers to an opening opened on the surface of the base 4, which can be specifically set in the edge area of ​​the grilling pan, and is used to collect smoke or steam generated during the frying and grilling process. Among them, the fan 6 refers to a power device installed inside the base 4, which can specifically be a centrifugal fan or an axial flow fan, and its air inlet is connected to the exhaust port through a pipe to achieve gas suction.

[0055] Specifically, when the grill is used outdoors by itself without the upper cover 1 installed, the heating element 8 heats the food on the grill pan 5, generating smoke or steam that is drawn through the exhaust port by the fan 6. After being pressurized by the fan 6, the gas enters the lower cover air duct 221 within the lower cover hinge 22 through the air outlet 63, and is ultimately discharged along the hinge axis to the outside environment. Because the lower cover air duct 221 is directly integrated into the hinge structure, the gas exhaust path does not require additional external piping, effectively avoiding structural interference.

[0056] In some embodiments, the air outlet 63 may be arranged upward, and a guide plate 62 may be added to the lower cover air duct 221 to optimize the airflow direction. The fan 6 may be configured to operate in an intermittent mode, for example, automatically starting when a temperature exceeding a threshold is detected.

[0057] Compared to existing technologies, traditional grills rely on natural convection to exhaust smoke, which can easily lead to gas stagnation or backflow when exposed to wind. This solution, however, uses forced airflow to create a directional air duct within the hinge, achieving efficient exhaust while also saving external space. The integrated hinge and air duct design eliminates the need for additional components and improves structural reliability.

[0058] Through the above-mentioned technical solution, the present invention solves the problem of low smoke emission efficiency during outdoor grilling, ensuring that high-temperature gases are quickly discharged and preventing smoke accumulation in the operating area. The integrated air duct design enables stable operation of the device even when uncovered, adapting to a variety of usage scenarios. The active suction mechanism of fan 6 effectively overcomes the limitations of natural convection and prevents environmental factors from affecting emission efficiency.

[0059] The present invention further proposes that the air outlet 63 is opened upward, and a water baffle 62 is provided in the lower cover air duct 221. The water baffle 62 is provided directly above the air outlet 63 to prevent rainwater from entering the fan 6 through the air outlet 63.

[0060] The upward opening of the air outlet 63 means that the opening direction of the air outlet 63 is perpendicular to the ground or inclined upward. This can be achieved by providing a through hole in the top of the fan 6 housing. This design prevents rainwater from directly entering the air outlet 63 in the direction of gravity. The water retaining plate 62 is a plate-like structure covering the air outlet 63. It can be made of metal or high-temperature resistant plastic. Its edge extends downward to form a shielding surface for blocking vertically falling rainwater.

[0061] Specifically, when the fan 6 is running, the air flow is discharged upward from the air outlet 63. Since the air outlet 63 is facing upward, rainwater cannot directly enter the air duct along the natural falling path. The water baffle 62 is located directly above the air outlet 63, and its projected area covers the opening area of ​​the air outlet 63. When rainwater falls, the water baffle 62 intercepts the rainwater and guides it to both sides to prevent it from contacting the air outlet 63. An air flow channel is retained between the water baffle 62 and the air outlet 63 to ensure that the exhaust function is not affected. After being blocked, the rainwater flows along the surface of the water baffle 62 to the side wall of the lower cover air duct 221, and is finally discharged to the outside of the equipment through the drainage structure.

[0062] Compared to existing grills, where the air outlet 63 typically faces forward or downward, rainwater tends to flow into the air duct due to gravity. This solution changes the direction of the air outlet 63 and adds a water baffle 62, creating a physical barrier through structural layout. This effectively blocks the path of rainwater intrusion without affecting exhaust efficiency.

[0063] Through the above technical solution, the present invention solves the problem of equipment damage caused by rainwater entering the fan 6 through the air outlet 63, avoids circuit short circuit or component corrosion caused by rainwater accumulation, and significantly improves the operating stability and service life of the grill in outdoor humid environments.

[0064] The more specific structure is the same as the peripheral structure of the aforementioned air outlet 63 and will not be described repeatedly.

[0065] The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many forms without departing from the scope of protection of the present invention and the claims, which are all within the scope of protection of the present invention.

Claims

1. A grill with a visual window defogging function, comprising a base (4) and an upper cover (1), wherein a lower cover hinge (22) is provided on one side of the base (4), and an upper cover hinge (21) is provided on a corresponding side of the upper cover (1), and the base (4) and the upper cover (1) are hingedly connected via the lower cover hinge (22) and the upper cover hinge (21); a heating element (8) and a grilling pan (5) provided on the heating element (8) are provided on the base (4), and a visual window (11) is provided on the upper cover (1), characterized in that: The base (4) is provided with an exhaust port (41), a fan (6) is provided on the base (4), a lower cover air duct (221) is formed in the lower cover hinge (22), the exhaust port (41) is connected to the air inlet of the fan (6), and the lower cover air duct (221) is connected to the air outlet (63) of the fan (6); The upper cover (1) is provided with an air inlet (14), an upper cover air duct (211) is formed in the upper cover hinge (21), the upper cover air duct (211) is connected to the air inlet (14), and the air inlet (14) is provided corresponding to the visual window (11); The upper cover air duct (211) is communicated with the lower cover air duct (221).

2. The grill with a window defogging function according to claim 1, characterized in that: The upper cover (1) is provided with a manual smoke exhaust mechanism (12), and the air inlet (14) and the manual smoke exhaust mechanism (12) are respectively and correspondingly arranged on both sides of the visual window (11).

3. The grill with a window defogging function according to claim 2, characterized in that: The manual smoke exhaust mechanism (12) comprises a smoke exhaust port (121) and a manual smoke exhaust valve (122) provided on the upper cover (1).

4. The grill with a window defogging function according to claim 1, characterized in that: The air outlet (63) is opened upward, and a water baffle (62) is provided in the lower cover air duct (221). The water baffle (62) is located directly above the air outlet (63) to prevent rainwater from entering the fan (6) through the air outlet (63).

5. The grill with a window defogging function according to claim 4, characterized in that: Two water retaining bars (61) are provided in the lower cover air duct (221); the air outlet (63) is surrounded by the inner wall of the lower cover hinge (22), the outer wall of the base (4) and the two water retaining bars (61); the two water retaining bars (61) are arranged in an eight-shaped shape; a sewer (64) is formed outside the two water retaining bars (61); and the sewer (64) is connected to the bottom of the base (4).

6. The grill with a window defogging function according to claim 5, characterized in that: The water baffle (62) is arranged in an arc shape, and the arc bottom of the arc-shaped water baffle (62) is located above the air outlet (63). Channels are formed on both sides of the arc-shaped water baffle (62) and are connected to the upper cover air duct (211).

7. A grill with a window defogging function according to any one of claims 1 to 6, characterized in that: The device further comprises a controller (3). A contact switch (31) is provided on the base (4). The contact switch (31) is provided corresponding to the upper cover (1). When the upper cover (1) covers the base (4), the contact switch (31) can be turned on. The contact switch (31) is electrically connected to the controller (3), and the controller (3) is electrically connected to the heating element (8) and the fan (6).

8. The grill with a window defogging function according to claim 6, characterized in that: The base (4) is provided with a fumigation device (7), and the controller (3) is electrically connected to the fumigation device (7).

9. An independent grilling device, comprising a base (4), a lower cover hinge (22) being provided on one side of the base (4), a heating element (8) and a grilling pan (5) provided on the heating element (8), characterized in that: The base (4) is provided with an exhaust port (41), a fan (6) is provided on the base (4), a lower cover air duct (221) is formed in the lower cover hinge (22), the exhaust port (41) is connected to the air inlet of the fan (6), and the lower cover air duct (221) is connected to the air outlet (63) of the fan (6).

10. The independent grill according to claim 9, characterized in that: The air outlet (63) is opened upward, and a water baffle (62) is provided in the lower cover air duct (221). The water baffle (62) is located directly above the air outlet (63) to prevent rainwater from entering the fan (6) through the air outlet (63).

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