Smoke exhaust structure of oven and oven

Abstract

The invention relates to the technical field of kitchen appliances, and discloses a smoke exhaust structure of an oven and the oven. The smoke exhaust structure of the oven comprises a smoke exhaust hole, a fan, a first smoke exhaust channel, a second smoke exhaust channel, a drainage channel and a mixing channel, wherein the smoke exhaust hole is formed in the upper end of an inner container of the oven. The fan is arranged above the inner container and used for introducing external air. The first smoke exhaust channel is arranged in the smoke exhaust assembly on the upper side of the inner container and communicates with the inner container through the smoke exhaust hole. The second smoke exhaust channel is arranged in the door body assembly and extends from the upper portion of the door body assembly to the bottom of the door body assembly. The drainage channel is arranged in the support assembly and communicated with the air outlet end of the fan. A mixing channel is defined between the support assembly and the door body assembly, the draught fan introduces external air into the mixing channel through the drainage channel, and after the external air and smoke flowing into the mixing channel through the first smoke exhaust channel are mixed, the external air and the smoke jointly enter the second smoke exhaust channel and are exhausted through the smoke exhaust port.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a smoke extraction structure for an oven and the oven itself. Background Technology

[0002] An oven is a kitchen appliance that uses heat radiation to bake food. During the baking process, a lot of oil fumes are produced, and the temperature of the fumes is very high. Therefore, it is necessary to design a smoke exhaust structure to properly exhaust the oil fumes.

[0003] Existing ovens typically have two types of exhaust systems. The first connects directly to an external range hood, venting the smoke into its duct. The second exhausts through the gap between the door and the display screen. Ovens with the first exhaust system are limited in their application environment because they require a range hood; they can only be used with integrated cooktops. Ovens with the second exhaust system are more versatile, but because the exhaust is located between the door and the display screen, it's positioned directly above an adult's thigh or a child's chest and head area. Since the exhaust fumes carry cooking heat, there's a high risk of burns. Summary of the Invention

[0004] One of the technical problems solved by this invention is to provide an oven exhaust structure that can effectively solve the problems of the limited use environment of existing oven exhaust structures and the easy burns to users caused by the exhaust fumes, so as to realize that the oven exhaust structure can be used in a variety of different environments while reducing the risk of users being burned.

[0005] The second technical problem solved by this invention is to provide an oven that can effectively solve the limitations of the existing oven's operating environment and the high risk of burns to users from the exhaust fumes, thereby improving the oven's applicability while avoiding burns from the exhaust fumes.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] The oven's smoke extraction system includes:

[0008] The smoke vent is located at the top of the oven's inner cavity;

[0009] A fan is located above the inner liner to introduce outside air;

[0010] The first smoke exhaust channel is provided in the upper side of the inner liner, and the first smoke exhaust channel is located in the smoke exhaust assembly and communicates with the inner liner through the smoke exhaust hole;

[0011] The second smoke exhaust channel is provided in the door assembly on the front side of the inner liner. The second smoke exhaust channel is located inside the door assembly and extends from the upper part of the door assembly to the bottom of the door assembly. The bottom of the door assembly is provided with a smoke exhaust port.

[0012] A flow channel is provided, and a support assembly is connected to the upper side of the door assembly. The flow channel is located inside the support assembly and is connected to the air outlet of the fan.

[0013] A mixing channel is formed between the bracket assembly and the door assembly, and the mixing channel is connected to the first smoke exhaust channel, the second smoke exhaust channel and the drainage channel respectively.

[0014] The fan draws outside air from the intake channel into the mixing channel, mixes it with the flue gas flowing into the mixing channel through the first exhaust channel, and then enters the second exhaust channel and is discharged through the exhaust port.

[0015] The smoke extraction structure of the oven described in this invention has the following advantages compared with the prior art:

[0016] The oven exhaust structure provided by this invention features an exhaust assembly on the upper side of the inner cavity. This assembly includes a first exhaust channel communicating with the inner cavity via exhaust holes, and a second exhaust channel within the door assembly. A guide channel communicating with the air outlet of a fan is located within a support assembly connected to the upper side of the door assembly. External air is drawn into this guide channel by the fan and enters a mixing channel formed between the support assembly and the door assembly. This air mixes with the exhaust gas entering the first exhaust channel through the exhaust holes in the inner cavity, and then enters the second exhaust channel. Finally, the exhaust gas is discharged through the exhaust port at the bottom of the door assembly. This design prevents high-temperature exhaust gas from flowing towards the user located at the front of the oven. Furthermore, the mixing and heat exchange between the external air and the high-temperature exhaust gas within the mixing channel lowers the temperature of the mixed gas. The lower-temperature gas then flows out from the exhaust port at the bottom of the door assembly, further reducing the risk of burns to the user. The oven's exhaust system utilizes its own structure for smoke extraction, eliminating the need for a range hood and making it suitable for a wider range of environments. The high-temperature smoke entering the mixing channel from the first exhaust duct mixes with the outside air entering the mixing channel from the guide duct, reducing its temperature. Guided by the outside air, the smoke then enters the second exhaust duct and exits from the bottom of the door assembly, preventing the high-temperature smoke from flowing towards the user and effectively reducing the risk of burns.

[0017] In one embodiment, the mixing channel is provided with a first air inlet, a second air inlet, and an exhaust outlet that are independent of each other. The mixing channel is connected to the first smoke exhaust channel through the first air inlet, the mixing channel is connected to the diversion channel through the second air inlet, and the mixing channel is connected to the second smoke exhaust channel through the exhaust outlet.

[0018] The support assembly is equipped with a display screen, and a fitting gap is formed between the bottom of the display screen and the top of the front end of the door assembly. The second air inlet is located above the exhaust port, and the first air inlet and the fitting gap are located on opposite sides of the mixing channel.

[0019] In one embodiment, the first air inlet is positioned below the mating gap; and the flow area of ​​the exhaust port is greater than the flow area of ​​the mating gap.

[0020] In one embodiment, the door assembly includes a door frame and a door body, the door body being connected to the front side of the door frame, and the second smoke exhaust channel being disposed inside the door body; the exhaust port is disposed on the upper part of the door body, the first air inlet is disposed on the door frame, the bracket assembly is connected to the door frame, and the second air inlet is disposed on the bracket assembly.

[0021] In one embodiment, the second air inlet is positioned directly opposite the smoke exhaust outlet, and the upper part of the door extends downward at an angle from the side away from the door frame to the side closer to the door frame.

[0022] In one embodiment, the support assembly includes a baffle and a flow guide. One end of the baffle is connected to the display screen, and the other end extends horizontally toward the fan. The flow guide extends obliquely upward from the display screen toward the side away from the display screen, so that an opening is formed between the flow guide and the end of the baffle away from the display screen. The fan is located at the opening and can bring external air into the flow channel.

[0023] In one embodiment, the mating gap is less than 2 mm.

[0024] In one embodiment, the smoke exhaust assembly includes a smoke exhaust hood, and the top of the inner liner is provided with a plurality of smoke exhaust holes. The smoke exhaust hood is connected to the inner liner and covers the smoke exhaust holes, so that the first smoke exhaust channel is formed between the smoke exhaust hood and the top of the inner liner.

[0025] In one embodiment, the exhaust port is provided with a smoke filter.

[0026] The second technical problem mentioned above is solved by the following technical solution:

[0027] An oven, which includes the smoke extraction structure of an oven as described in any of the above embodiments.

[0028] The oven described in this invention has the following advantages compared to the prior art:

[0029] The oven provided by this invention, by employing the aforementioned smoke exhaust structure, not only improves the oven's applicability but also prevents smoke from being directly discharged towards the user, effectively reducing the risk of burns. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0031] Figure 1 This is a front view of the oven provided in a specific embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the rear structure of the oven provided in a specific embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional view of the oven provided in a specific embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the smoke exhaust method of the oven's smoke exhaust structure provided in a specific embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the inner liner provided in a specific embodiment of the present invention;

[0036] Figure 6 This is a structural schematic diagram of the door frame provided in a specific embodiment of the present invention;

[0037] Figure 7 This is a structural schematic diagram of the door assembly provided in a specific embodiment of the present invention;

[0038] Figure 8 This is a side sectional view of the door assembly according to a specific embodiment of the present invention;

[0039] Figure 9 yes Figure 8 A magnified view of a portion of point A in the middle.

[0040] Label Explanation:

[0041] 1. Inner liner assembly; 11. Inner liner; 111. Smoke vent; 12. Heat spreader;

[0042] 2. Door frame; 21. Second vertical plate; 211. First air inlet; 212. Notch; 213. Sealing groove; 22. Support frame; 23. Sealing strip;

[0043] 3. Door body; 31. First fixed frame; 311. First fixed top plate; 3111. Exhaust port; 312. First fixed front side plate; 313. First fixed rear side plate; 32. First glass; 33. Second glass; 34. Third glass; 35. Second fixed frame; 351. Second fixed top plate; 3511. Smoke exhaust port; 352. Second fixed front side plate; 353. Second fixed rear side plate; 36. Second smoke exhaust channel; 37. Connecting frame; 371. Connecting top plate; 3711. Connecting opening; 372. Connecting front side plate; 373. Connecting rear side plate; 38. Side plate;

[0044] 4. Bracket assembly; 41. Draft shield; 411. Airflow channel; 412. Air intake gap; 42. Baffle; 421. First horizontal plate; 4211. Second air intake; 422. First vertical plate;

[0045] 5. Burner assembly; 51. Burner; 52. Support frame;

[0046] 6. Smoke exhaust assembly; 61. Smoke exhaust hood; 611. First smoke exhaust hood; 612. Second smoke exhaust hood; 613. Third smoke exhaust hood; 62. First smoke exhaust duct;

[0047] 7. Fan;

[0048] 8. Mixed Channels;

[0049] 9. Display screen; 91. Fitting clearance;

[0050] 10. Circulating fan assembly. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] In the description of this application, it should be understood that the terms "inner" and "outer", 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.

[0053] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] like Figures 1-4 As shown, this embodiment provides an oven, including an inner liner assembly 1, a door assembly, a support assembly 4, a burner assembly 5, a circulating fan assembly 10, and a display screen 9. The inner liner assembly 1 includes an inner liner 11 and a heat spreader plate 12. A door assembly is provided on the front side of the inner liner 11. The door assembly includes a door frame 2 and a door 3. The door 3 is connected to the front side of the door frame 2. The inner liner 11 is mounted on the door frame 2. A sealing strip 23 is provided between the inner liner 11 and the door frame 2 to achieve a sealed connection between the inner liner 11 and the door frame 2. The door frame 2 is located on the open side of the inner liner 11 and is sealed to the inner liner 11. The lower end of the door 3 is rotatably connected to the door frame 2. The heat spreader plate 12 is located at the bottom of the inner liner 11. The burner assembly 5 includes a burner 51 and a support frame 52. The burner 51 is fixed on the support frame 52, and the support frame 52 and the heat spreader plate 12 enclose the burner 51 to form a combustion and heat release space for the burner 51. A circulating fan assembly 10 is located on the top or side wall of the inner liner 11. The circulating fan assembly 10 circulates hot air within the inner liner 11, enabling both pure electric baking and air frying functions. A bracket assembly 4 is connected to the upper side of the door assembly. A display screen 9 is mounted on the bracket assembly 4. The bracket assembly 4 includes a baffle 42, and the display screen 9 is fixed to the door frame 2 via the baffle 42.

[0056] The display screen 9 is located on the upper side of the door 3. When the door 3 rotates to close the open side of the inner liner 11, a fitting gap 91 is formed between the bottom of the display screen 9 and the top of the front end of the door assembly (i.e., the top of the door 3). In the prior art, the smoke in the inner liner 11 is discharged through this fitting gap 91, and the high-temperature smoke discharged from this fitting gap 91 is directed at the user, posing a high risk of burns.

[0057] To address the aforementioned technical problems, this embodiment also provides a smoke extraction structure for an oven, applicable to the oven described above, such as... Figure 4As shown, the smoke exhaust structure includes a smoke exhaust port 111, a fan 7, a first smoke exhaust channel 62, a second smoke exhaust channel 36, a diversion channel 411, and a mixing channel 8. The smoke exhaust port 111 is located at the upper end of the inner liner 11, and the fan 7 is located above the inner liner 11 to introduce external air. A smoke exhaust assembly 6 is located on the upper side of the inner liner 11. Since the smoke generated from cooking food in the inner liner 11 flows upwards, the smoke enters the smoke exhaust assembly 6 after reaching the upper side of the inner liner 11, which better conforms to the flow pattern of smoke. The first smoke exhaust channel 62 is located within the smoke exhaust assembly 6 and communicates with the inner liner 11 through the smoke exhaust port 111. The second smoke exhaust channel 36 is located within the door assembly and extends from the upper part of the door assembly to the bottom of the door assembly. A smoke exhaust port 3511 is located at the bottom of the door assembly. The diversion channel 411 is located within the support assembly 4 and communicates with the air outlet of the fan 7. A mixing channel 8 is formed between the support assembly 4 and the door assembly. The mixing channel 8 is connected to the first exhaust channel 62, the second exhaust channel 36, and the guide channel 411. The fan 7 introduces external air into the mixing channel 8 from the guide channel 411, mixes it with the flue gas flowing into the mixing channel 8 from the first exhaust channel 62, and then enters the second exhaust channel 36 and is discharged through the exhaust port 3511. The exhaust structure of this oven utilizes the oven's own structure for exhaust, eliminating the need for a range hood and making it suitable for a wider range of environments. The high-temperature flue gas entering the mixing channel 8 from the first exhaust channel 62 mixes with the external air entering the mixing channel 8 from the guide channel 411, reducing its temperature. Under the guidance of the external air, the flue gas is discharged from the bottom of the door assembly, preventing the high-temperature flue gas from flowing towards the user and effectively reducing the risk of burns.

[0058] In one embodiment, continue to refer to Figure 4The mixing channel 8 is provided with a first air inlet 211, a second air inlet 4211, and an exhaust outlet 3111, which are independent of each other. The first air inlet 211 is connected to the exhaust end of the first smoke exhaust channel 62, the exhaust end of the guide channel 411 is connected to the second air inlet 4211, and the exhaust outlet 3111 is connected to the air inlet of the second smoke exhaust channel 36. The second air inlet 4211 is located above the exhaust outlet 3111, and the first air inlet 211 and the fitting gap 91 are located on opposite sides of the mixing channel 8. The side of the mixing channel 8 away from the fitting gap 91 is connected to the first exhaust channel 62, and the end away from the second air inlet 4211 is connected to the second exhaust channel 36. The external air entering the mixing channel 8 from the second air inlet 4211 can guide the flue gas entering the mixing channel 8 from the first exhaust channel 62 into the second exhaust channel 36 along the direction of the second exhaust channel 36, and then discharge from the outlet of the second exhaust channel 36. This avoids most of the flue gas flowing to the user located in front of the oven through the fitting gap 91. Moreover, the external air and the high-temperature flue gas mix and exchange heat in the mixing channel 8, which reduces the temperature of the mixed gas. The lower-temperature gas then flows out from the second exhaust channel 36, further reducing the risk of the user being burned.

[0059] In one embodiment, the first air inlet 211 is set below the mating gap 91; and the flow area of ​​the exhaust port 3111 is greater than the flow area of ​​the mating gap 91. By setting the height of the mating gap 91 to be higher than the height of the first air inlet 211, and reducing the amount of high-temperature flue gas that is not intercepted by the external air flowing horizontally and being discharged through the mating gap 91 after being discharged from the first air inlet 211, the amount of flue gas that is not intercepted by the external air is reduced.

[0060] In one embodiment, the second smoke exhaust channel 36 is located inside the door body 3, the exhaust port 3111 is located on the upper part of the door body 3, the first air inlet 211 is located on the door frame 2, the bracket assembly 4 is connected to the door frame 2, and the second air inlet 4211 is located on the bracket assembly 4.

[0061] In one embodiment, the second air inlet 4211 is positioned directly opposite the exhaust outlet 3111, and the upper part of the door 3 extends downwards from the side away from the door frame 2 to the side closer to the door frame 2. The mixing channel 8 is connected to the second smoke exhaust channel 36 through the exhaust outlet 3111, and the flow area of ​​the exhaust outlet 3111 is larger than the area of ​​the mating gap 91. This allows the high-temperature flue gas in the inner liner 11 to enter the first smoke exhaust channel 62 through the smoke exhaust hole 111, and then enter the mixing channel 8 through the first air inlet 211. During the process of the external air flowing from the second air inlet 4211 into the mixing channel 8 towards the exhaust outlet 3111, most of the flue gas flowing towards the mating gap 91 is intercepted, causing most of the flue gas to mix with the external air and flow towards the exhaust outlet 3111 along with the flow direction of the external air. The flow area of ​​the exhaust port 3111 is larger than the area of ​​the mating gap 91, making the resistance to gas flow towards the exhaust port 3111 less than the resistance to gas flow towards the mating gap 91. This allows most of the flue gas to enter the second exhaust channel 36 through the exhaust port 3111 and flow along the second exhaust channel 36 to the bottom of the door assembly. Furthermore, the upper part of the door 3 is the bottom surface of the mixing channel 8. The bottom surface of the mixing channel 8 is set such that the end near the first air inlet 211 is lower than the end near the mating gap 91. This allows the high-temperature flue gas flowing out of the first air inlet 211 to be intercepted by the external air and flow with the external air to the exhaust port 3111 and into the second exhaust channel 36, instead of moving towards the mating gap 91. This further reduces the amount of flue gas discharged through the mating gap 91 from the exhaust port 3511, preventing it from flowing towards the user located in front of the oven and thus reducing the risk of burns to the user.

[0062] In one embodiment, the mating clearance 91 is less than 2 mm. Specifically, the mating clearance 91 is 0.5 mm to 1.5 mm.

[0063] In one embodiment, such as Figure 2 and Figure 5 As shown, the smoke exhaust assembly 6 includes a smoke exhaust hood 61, and the top of the inner liner 11 is provided with a plurality of smoke exhaust holes 111. The smoke exhaust hood 61 is connected to the inner liner 11 and covers the smoke exhaust holes 111, so that a first smoke exhaust channel 62 is formed between the smoke exhaust hood 61 and the top of the inner liner 11.

[0064] Furthermore, such as Figure 5 As shown, the smoke exhaust hole 111 is located on the side wall of the inner liner 11 near the top, and the smoke exhaust hood 61 covers the upper side of the smoke exhaust hole 111. The specific shape of the smoke exhaust hole 111 is not limited, and it can be set into various shapes such as round hole, elliptical hole or square hole according to the structure of the inner liner 11.

[0065] Specifically, continue to refer to Figure 2The smoke exhaust hood 61 includes a first smoke exhaust hood 611, a second smoke exhaust hood 612, and a third smoke exhaust hood 613. The first smoke exhaust hood 611 is located on the side of the inner liner 11 near the door frame 2. The second smoke exhaust hood 612 and the third smoke exhaust hood 613 are both perpendicular to the first smoke exhaust hood 611 and are located at both ends of the first smoke exhaust hood 611, respectively. The two ends of the first smoke exhaust hood 611 are connected to the second smoke exhaust hood 612 and the third smoke exhaust hood 613, respectively. Smoke exhaust holes 111 are provided on both adjacent sides of the inner liner 11 and the side near the door frame 2. On one of the adjacent sides, the smoke exhaust hole 111 on one side corresponds to the second smoke exhaust hood 612, and the smoke exhaust hole 111 on the other side corresponds to the third smoke exhaust hood 613. The second exhaust hood 612 and the inner liner 11 form a first diversion channel, the third exhaust hood 613 and the inner liner 11 form a second diversion channel, and the first exhaust hood 611 and the inner liner 11 form a merging channel. That is, the smoke in the inner liner 11 enters the first and second diversion channels respectively through the exhaust holes 111 on both sides of the inner liner 11, and then merges into the merging channel. The first diversion channel, the second diversion channel, and the merging channel together form the first exhaust channel 62. This arrangement accelerates the exhaust speed of the smoke in the inner liner 11 and prevents smoke from accumulating at the exhaust holes 111, which could lead to increased air pressure in the inner liner 11.

[0066] Of course, in other embodiments, the smoke hood 61 can also be set as an integral structure that can cover the periphery of the top of the inner liner 11, and a plurality of smoke vents 111 are provided at intervals on the periphery of the top of the inner liner 11.

[0067] A mixing channel 8 is formed by the door frame 2, baffle 42, door assembly, and display screen 9. The door frame 2 has a first air inlet 211, and the smoke hood 61 communicates with the mixing channel 8 through the first air inlet 211. A fitting gap 91 is located at the front of the mixing channel 8. A second smoke exhaust channel 36 is provided inside the door body 3, extending from the upper part to the bottom. The smoke in the first smoke exhaust channel 62 mixes with and cools down with the outside air entering the mixing channel 8 through the second air inlet 4211. Guided by the outside air, the smoke flows to the second smoke exhaust channel 36 and exits from the bottom of the second smoke exhaust channel 36. This arrangement ensures that the cooled smoke exits from the bottom of the door body 3 along the second smoke exhaust channel 36, preventing contact with the human body during exhaust. It also extends the exhaust path of the low-temperature smoke, further cooling the smoke and reducing the risk of burns.

[0068] In one embodiment, continue to refer to Figure 4The bracket assembly 4 also includes a flow guide shroud 41, one end of a baffle 42 is connected to the display screen 9, and the other end extends horizontally toward the fan 7. The flow guide shroud 41 extends obliquely upward from the display screen 9 toward the direction away from the display screen 9, so that an opening is formed between the flow guide shroud 41 and the end of the baffle 42 away from the display screen 9. The fan 7 is located at the opening and can bring external air into the flow channel 411.

[0069] In one embodiment, such as Figure 4 and Figure 6 As shown, the baffle 42 includes a first horizontal plate 421 and a first vertical plate 422 arranged vertically. The first horizontal plate 421 is connected to the door frame 2, and the display screen 9 is fixed to the front side of the first vertical plate 422. Specifically, the door frame 2 includes a second vertical plate 21 and a support frame 22 arranged around the second vertical plate 21. A notch 212 is provided in the middle of the second vertical plate 21, and the open side of the inner liner 11 is provided corresponding to the notch 212. The first horizontal plate 421 is fitted and fixed to the upper side plate of the support frame 22. A sealing groove 213 is provided on the side of the second vertical plate 21 near the notch 212, and a sealing strip 23 is provided in the sealing groove 213. The support frame 52 is fixedly connected to the lower side plate of the support frame 22. The lower end of the notch 212 of the second vertical plate 21 is hinged to the door body 3 so that the door body 3 is rotatably arranged on the front side of the inner liner 11 to close the open side of the inner liner 11. Specifically, a first air inlet 211 is provided on the second vertical plate 21. By providing a second air inlet 4211 that communicates with the outside air on the first horizontal plate 421, and covering the first horizontal plate 421 with a guide shroud 41, a flow channel 411 is formed between the guide shroud 41 and the first horizontal plate 421. The fan 7 guides the outside air to the flow channel 411. The outside air in the flow channel 411 enters the mixing channel 8 through the second air inlet 4211 and exchanges heat with the high-temperature flue gas entering the mixing channel 8, thereby reducing the temperature of the high-temperature flue gas. Then, it enters the second exhaust channel 36 through the exhaust port 3111 and is discharged. This can effectively reduce the temperature of the discharged flue gas, reduce the temperature of the user's environment, and improve comfort.

[0070] Specifically, multiple first air inlets 211 are spaced apart along the length of the confluence channel, and multiple second air inlets 4211 are spaced apart along the length of the diversion channel 411.

[0071] The fan 7 draws outside air into the duct 411, and then through the second air inlet 4211 into the mixing channel 8 to mix and exchange heat with the high-temperature flue gas that enters the mixing channel 8 through the first air inlet 211, thereby reducing the temperature of the flue gas.

[0072] In one embodiment, such as Figure 4As shown, the fan 7 is a cross-flow fan, and an air intake gap 412 is left between the cross-flow fan and one side of the opening. The guide shroud 41 gradually slopes downward from the opening toward the end near the first vertical plate 422, and the second air inlet 4211 is located at the end of the first horizontal plate 421 away from the opening.

[0073] The air deflector 41 includes a first bending plate, a deflector plate, and a second bending plate. The deflector plate gradually slopes downward from the opening towards the end near the first vertical plate 422. The first bending plate and the second bending plate are respectively disposed at both ends of the deflector plate. The first bending plate bends from the end of the deflector plate near the opening to be parallel to the first horizontal plate 421, thus forming an opening between the first bending plate and the first horizontal plate 421. The second bending plate bends from the end of the deflector plate near the first vertical plate 422 to be parallel to the first vertical plate 422 and is fitted and connected to the first vertical plate 422. The length of the cross-flow fan is matched with the length of the opening, which allows for uniform air intake at the opening of the flow channel 411. The air intake gap 412 is located between the top of the cross-flow fan and the first bending plate, allowing external air to enter from the top of the flow channel 411 and flow downward to the second air intake 4211 under the guidance of the guide plate. The air then enters the mixing channel 8 through the second air intake 4211 and fully exchanges heat with the high-temperature flue gas that enters the mixing channel 8 through the first air intake 211.

[0074] like Figures 7-9 As shown, the door body 3 includes a first fixing frame 31, a first glass 32, a second glass 33, a third glass 34, a second fixing frame 35, and side panels 38. The first glass 32 and the second glass 33 are arranged parallel to each other and spaced apart. The upper ends of the first glass 32 and the second glass 33 are fixed by the first fixing frame 31 and the connecting frame 37, and the lower ends of the first glass 32 and the second glass 33 are fixed by the second fixing frame 35. The third glass 34 is fixed between the first glass 32 and the second glass 33 and is fixed by the second fixing frame 35. The first glass 32 is located on the front side of the door body 3, and the second glass 33 is located on the rear side of the door body 3, close to the inner liner 11. There are two side panels 38, which are respectively located on the left and right sides of the first glass 32, the second glass 33, and the third glass 34, for sealing the door body 3.

[0075] Specifically, the first fixing frame 31 includes a first fixing top plate 311 and a first fixing side plate. The first fixing side plate includes a first fixing front side plate 312 and a first fixing rear side plate 313. The first fixing front side plate 312 and the first fixing rear side plate 313 are respectively connected to both sides of the first fixing top plate 311. The first glass 32 is fixed to the first fixing front side plate 312, and the second glass 33 is fixed to the first fixing rear side plate 313. The second fixing frame 35 includes a second fixing top plate 351 and a second fixing side plate. The second fixing side plate includes a second fixing front side plate 352 and a second fixing rear side plate 353. The second fixing front side plate 352 and the second fixing rear side plate 353 are respectively connected to both sides of the second fixing top plate 351. The connecting frame 37 includes a connecting top plate 371 and a connecting side plate. The connecting side plate includes a connecting front side plate 372 and a connecting rear side plate 373. The connecting front side plate 372 and the connecting rear side plate 373 are respectively connected to both sides of the connecting top plate 371. The connecting top plate 371 is fitted and fixed to the first fixed top plate 311. The connecting front side plate 372 is fitted and fixed to the first fixed front side plate 312. The upper end of the second glass 33 is sandwiched between the first fixed rear side plate 313 and the connecting rear side plate 373. The lower end of the second glass 33 is fitted and connected to the second fixed rear side plate 353. The lower end of the third glass 34 is fixed to the second fixed top plate 351.

[0076] Specifically, the exhaust port 3111 is disposed on the first fixed frame 31, and the mixing channel 8 is connected to the second smoke exhaust channel 36 through the exhaust port 3111. The second fixed frame 35 is provided with a smoke exhaust port 3511, which is disposed on the first fixed top plate 311. The smoke exhaust port 3511 is disposed on the second fixed top plate 351, and the smoke exhaust port 3511 and the exhaust port 3111 are located between the second glass 33 and the third glass 34. A connecting port 3711 is provided on the connecting top plate 371. The first glass 32 protrudes from the first fixed frame 31 at the end away from the second fixed frame 35, so that the baffle 42, the door frame 2, the first fixed frame 31, and the first glass 32 enclose and form the mixing channel 8. That is, the first horizontal plate 421, the second vertical plate 21, the first fixed frame 31, and the first glass 32 enclose and form the mixing channel 8. The first exhaust duct 62 is located on the side of the mixing duct 8 away from the first glass 32. High-temperature flue gas enters the first exhaust duct 62 through the exhaust hole 111, and then enters the mixing duct 8 through the first air inlet 211. Due to the guidance of external air and the fact that the flow resistance of the exhaust port 3111 is less than the flow resistance of the fitting gap 91, and the first fixed top plate 311 extends downward from the first glass 32 to the second glass 33, most of the flue gas in the mixing duct 8 enters the second exhaust duct 36 through the exhaust port 3111 and is discharged from the exhaust port 3511. In one embodiment, the first fixed frame 31, the first glass 32, the second glass 33, and the second fixed frame 35 enclose and form the second exhaust duct 36. That is, the length of the second exhaust duct 36 is the height of the door assembly. The low-temperature flue gas formed after heat exchange in the mixing duct 8 flows from the top of the door assembly to the bottom and is discharged, extending the emission path of the low-temperature flue gas and further reducing the temperature of the low-temperature flue gas, resulting in a lower temperature of the flue gas discharged to the outside.

[0077] Furthermore, since the first glass 32 is located on the outside of the door assembly and can be directly contacted by the human body, in order to prevent the temperature of the first glass 32, which can be in direct contact with the human body, from becoming too high, the second smoke exhaust channel 36 is set between the second glass 33 and the third glass 34 to prevent the low-temperature smoke from directly contacting the first glass 32 and causing the temperature of the first glass 32 to rise.

[0078] It should be noted that the exhaust port 3111, the connecting port 3711, and the smoke exhaust port 3511 are all located between the second glass 33 and the third glass 34. The number and shape of the first air inlet 211, the second air inlet 4211, the exhaust port 3111, the connecting port 3711, and the smoke exhaust port 3511 are not limited. The number can be set according to the length of their respective locations, and the shape can be a round hole, an elliptical hole, a square hole, or an irregularly shaped hole.

[0079] In one embodiment, the exhaust port 3511 is equipped with a flue gas filter, which can filter out harmful substances in the flue gas, preventing harmful substances in the flue gas from being discharged and polluting the environment and affecting human health.

[0080] The exhaust structure of the oven provided in this embodiment is not limited by the environment and has a wider range of applications. At the same time, by exchanging heat between the outside air and the high-temperature flue gas discharged from the inner liner 11 and by extending the exhaust path of the flue gas, the temperature of the flue gas is effectively reduced. Furthermore, the flue gas, after being cooled, is discharged from the bottom of the door assembly, making it less likely to come into contact with the human body and effectively reducing the risk of burns.

[0081] The oven provided in this embodiment can be a standalone gas oven or a steam-baking separate oven. The exhaust structure of the oven described above can be applied to integrated cooktops and cooking centers, which not only improves the oven's versatility but also lowers the temperature of the exhaust fumes, preventing them from contacting the human body and effectively reducing the risk of burns.

[0082] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0083] The specific embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. The oven's smoke extraction system includes: A smoke vent (111) is located at the upper end of the inner cavity (11) of the oven; A fan (7) is located above the inner liner (11) and is used to introduce external air; The first smoke exhaust channel (62) is provided on the upper side of the inner liner (11), and the first smoke exhaust channel (62) is located in the smoke exhaust assembly (6) and communicates with the inner liner (11) through the smoke exhaust hole (111); The second smoke exhaust channel (36) is provided in the door assembly on the front side of the inner liner (11). The second smoke exhaust channel (36) is located inside the door assembly and extends from the upper part of the door assembly to the bottom of the door assembly. The bottom of the door assembly is provided with a smoke exhaust port (3511). The flow channel (411) is located inside the support assembly (4) and is connected to the air outlet of the fan (7). A mixing channel (8) is formed between the support assembly (4) and the door assembly. The mixing channel (8) is connected to the first smoke exhaust channel (62), the second smoke exhaust channel (36) and the drainage channel (411) respectively. The fan (7) introduces external air from the diversion channel (411) into the mixing channel (8), and mixes it with the flue gas flowing into the mixing channel (8) through the first exhaust channel (62), and then enters the second exhaust channel (36) and is discharged through the exhaust port (3511).

2. The smoke extraction structure of the oven according to claim 1, characterized in that, The mixing channel (8) is provided with a first air inlet (211), a second air inlet (4211), and an exhaust outlet (3111) that are independent of each other. The mixing channel (8) is connected to the first smoke exhaust channel (62) through the first air inlet (211), the mixing channel (8) is connected to the diversion channel (411) through the second air inlet (4211), and the mixing channel (8) is connected to the second smoke exhaust channel (36) through the exhaust outlet (3111). The support assembly (4) is equipped with a display screen (9), and a fitting gap (91) is formed between the bottom of the display screen (9) and the top of the front end of the door assembly. The second air inlet (4211) is located above the exhaust port (3111), and the first air inlet (211) and the fitting gap (91) are located on opposite sides of the mixing channel (8).

3. The smoke extraction structure of the oven according to claim 2, characterized in that, The first air inlet (211) is set below the mating gap (91); and the flow area of ​​the exhaust port (3111) is greater than the flow area of ​​the mating gap (91).

4. The smoke extraction structure of the oven according to claim 2, characterized in that, The door assembly includes a door frame (2) and a door body (3). The door body (3) is connected to the front side of the door frame (2), and the second smoke exhaust channel (36) is located inside the door body (3). The exhaust port (3111) is located on the upper part of the door body (3), the first air inlet (211) is located on the door frame (2), the bracket assembly (4) is connected to the door frame (2), and the second air inlet (4211) is located on the bracket assembly (4).

5. The smoke extraction structure of the oven according to claim 4, characterized in that, The second air inlet (4211) is positioned opposite the exhaust outlet (3111), and the upper part of the door body (3) extends downward from the side away from the door frame (2) to the side close to the door frame (2).

6. The smoke extraction structure of the oven according to claim 2, characterized in that, The support assembly (4) includes a baffle (42) and a flow guide (41). One end of the baffle (42) is connected to the display screen (9), and the other end extends horizontally toward the fan (7). The flow guide (41) extends obliquely upward from the display screen (9) toward the direction away from the display screen (9) so that an opening is formed between the flow guide (41) and the end of the baffle (42) away from the display screen (9). The fan (7) is located at the opening and can bring external air into the flow channel (411).

7. The smoke exhaust structure of the oven according to claim 2, characterized in that, The fitting clearance (91) is less than 2 mm.

8. The smoke extraction structure of the oven according to any one of claims 1-7, characterized in that, The smoke exhaust assembly (6) includes a smoke exhaust hood (61), and the top of the inner liner (11) is provided with a plurality of smoke exhaust holes (111). The smoke exhaust hood (61) is connected to the inner liner (11) and covers the smoke exhaust holes (111) so that the first smoke exhaust channel (62) is formed between the smoke exhaust hood (61) and the top of the inner liner (11).

9. The smoke exhaust structure of the oven according to any one of claims 1-7, characterized in that, The exhaust port (3511) is equipped with a flue gas filter.

10. An oven, characterized in that, Includes the smoke extraction structure of the oven as described in any one of claims 1-9.

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