A steam-type smokeless baking tray

Abstract

The present invention discloses a steam type smokeless baking tray, which comprises: an upper base assembly, a lower base assembly and a baking tray assembly. A receiving cavity matching the baking tray assembly is formed on the upper base assembly; The baking tray assembly includes an upper tray and a lower tray. The upper tray and the lower tray are closed to form a first steam cavity. A plurality of first steam outlets are evenly distributed on the upper tray of the first steam cavity. A second steam outlet is arranged outside the upper base assembly of the second steam cavity, and the second steam outlet is arranged above the working surface of the upper tray; The upper base assembly includes an upper base and a three-way connecting piece. The three-way connecting piece includes a water passing seat and a steam passing seat. The water passing seat communicates the second steam cavity and the second steam outlet, and the steam passing seat communicates the first steam cavity and the first steam outlet; Steam in different directions is output through the first steam cavity and the second steam cavity to ensure the moistening effect of food.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking equipment, and particularly relates to a steam type smokeless baking tray. Background Art

[0002] A smokeless baking tray is a cooking device for cooking food by grilling. The grilled food has less oil content and a crispy taste, and is deeply loved by people. Among them, the main feature of the smokeless baking tray is that it has a smoking function, which further improves the cooking experience.

[0003] At present, the smokeless baking trays on the market include an upper suction type and a lower suction type. Since the generated oil fume travels upward, the smoking effect of the upper suction type is usually better than that of the lower suction type. However, for the upper suction type, the smoking bracket must be arranged above the baking tray to perform the function of extracting oil fume, resulting in inconvenient cooking operations. In addition, in the existing technology, there are also means to increase the moisture of the ingredients by adding steam during the cooking process. However, on the premise that the steam travels upward, the existing technical solutions that can increase steam are all carried out under closed cooking conditions and are difficult to implement in an open baking tray device. Moreover, due to the ingredients being closely attached to the surface of the baking tray, it is also necessary to avoid the water tray at the bottom of the baking tray and the oil return port on the periphery, and it is difficult to apply moisture supplement to the lower surface of the baking tray, resulting in a phenomenon of dryness at the bottom and wetness at the top, which affects the taste of the ingredients. Therefore, it is necessary to improve the existing open baking tray. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a steam type smokeless baking tray to achieve the technical effects of smokeless cooking, humidity increase, and oil return.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A steam type smokeless baking tray, comprising: an upper base assembly, a lower base assembly, and a baking tray assembly. A receiving cavity matching the baking tray assembly is provided on the upper base assembly;

[0006] The baking tray assembly includes an upper tray and a lower tray that are hermetically sealed and closed. The upper tray and the lower tray are closed to form a first steam cavity. The first steam cavity is evenly provided with a plurality of first steam outlets on the upper tray. A heating element and a second steam cavity are provided in the lower tray. A vaporization channel is provided in the second steam cavity in a meandering manner. A second steam outlet is arranged on the outside of the upper base assembly in the second steam cavity, and the second steam outlet is arranged above the working surface of the upper tray;

[0007] The upper base assembly includes an upper base and a three-way connector detachably arranged in the upper base. An oil return channel is provided at the connection between the upper base and the upper tray. The three-way connector includes a water passing seat and a steam passing seat. The water passing seat communicates the second steam cavity and the second steam outlet, and the steam passing seat communicates the first steam cavity and the first steam outlet;

[0008] The lower base assembly includes a lower base placed at the bottom of the upper base, and a water purification tank and an oil return tank accommodated in the lower base. A first pump body is provided between the water purification tank and the water passage seat. A second pump body and a steam generator are provided between the water purification tank and the steam passage seat. The oil return tank is communicated with the oil return passage. The bottom of the three-way connector is communicated with the oil return tank to supply condensed water into the oil return tank.

[0009] Furthermore, the upper baking tray has an arched working surface. The oil return passage is arranged on the outer periphery of the upper tray, and at least part of the outer edge of the upper tray is placed above the return passage.

[0010] Furthermore, a positioning seat for the three-way connector to be clamped therein is provided in the middle of the lower base. The three-way connector is arranged in the middle of the lower base. The oil return tank is slidably arranged with respect to the side of the lower base, or the oil return tank is slidably arranged with respect to the bottom of the lower base.

[0011] Furthermore, the steam passage seat includes a steam supply pipe and a steam passage pipe arranged at the bottom of the steam supply pipe. One end of the steam passage pipe is connected to the steam generator, and the other end is connected to the oil return tank;

[0012] The water passage seat includes a first ring section sleeved on the steam passage pipe, and a second ring section arranged around the end of the first ring section. The first ring section is placed at both ends of the steam passage pipe, and an annular water outlet is provided on the second ring section. The water outlet is placed in the second steam cavity.

[0013] Furthermore, the steam passage pipe is horizontally arranged at the bottom of the air supply pipe, and a drainage boundary is provided at the bottom of the steam passage pipe. A condensed water outlet is provided at the bottom end of the drainage boundary, and the condensed water outlet is communicated with the oil return tank;

[0014] A sealing liner is provided in the condensed water outlet, and the sealing liner is integrally communicated with the oil return tank;

[0015] The interior of the lower base is divided into a low-temperature area and a high-temperature area by the water purification tank and the oil return tank. The end of the steam passage pipe communicated with the oil return tank is adjacent to or located in the low-temperature area.

[0016] Furthermore, a filtering component is provided at the top of the steam passage seat. The filtering component includes:

[0017] A filtering seat is embedded at the top of the steam passage seat, and the filtering seat forms a steam outlet passage with a T-shaped cross-section in the vertical direction;

[0018] A filtering element is sleeved at the bottom of the filtering seat, and at least part of the filtering element is exposed in the first steam cavity to form a grease contact surface. The steam outlet passage outputs steam above the grease contact surface.

[0019] Further, at least a part of the bottom of the filter element is exposed in the steam passage seat, forming a grease contact surface.

[0020] Further, the upper base includes a fence for forming the boundary of the accommodating cavity. The second steam outlets are evenly distributed along the contour of the fence, and the second steam outlets are obliquely arranged towards the bottom of the accommodating cavity.

[0021] Further, an air suction port is also formed on the fence. An air suction channel communicating with the air suction port is arranged inside the fence. A negative pressure fan communicating with the air suction channel is arranged inside the lower base. The air suction port is arranged opposite to the second steam outlet, and the air suction port is located below the second steam outlet.

[0022] Further, a guiding component is also arranged on the top of the upper base. The guiding component includes a diversion plate hinged on the top of the upper base and a torsion spring abutted between the upper base and the diversion plate. The diversion plate and the upper base are fixed by a buckle. The diversion plate has an open state and a closed state through the torsion spring and the buckle. The diversion plate forms an angle with respect to the baking pan assembly in the open state, and the diversion plate forms the inner boundary of the upper base in the closed state.

[0023] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. By providing an upper and lower split baking pan assembly, steam cavities are formed between the upper pan and the lower pan that constitute the baking pan assembly. The upper pan outputs steam to the bottom of the food through the first steam cavity, thereby moistening the bottom of the food. The lower pan generates steam through the built-in heating element and outputs the steam towards the food from above the upper pan, thereby moistening the surface of the food. The heating element also provides heat to the upper pan and performs the function of frying and grilling.

[0024] 2. An air suction port opposite to the second steam outlet is arranged on the periphery of the upper pan. While sucking the oil fume generated by frying and grilling, the upward steam passes through the surface of the food under the action of the air suction port, ensuring the humidification effect. The oil fume and the steam together form an oil-water mixture and enter the oil return tank through the air suction port and the oil return port.

[0025] 3. By arranging a detachable three-way connector inside the upper seat, the three-way connector undertakes the functions of inputting steam into the first steam cavity, inputting water into the second steam cavity, and filtering the oil-water mixture entering the first steam cavity. Moreover, the steam pipe of the three-way connector can also receive the oil-water mixture in the first steam cavity and the condensed water in the steam passage seat, and guide the oil-water mixture and the condensed water into the oil return tank. The condensed water provides clean water for the oil return tank, facilitating later cleaning and retaining the oil-water mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2Schematic cross-sectional view of the present invention;

[0028] Figure 3 Schematic view of the heat conducting ribs in the first steam chamber of the present invention;

[0029] Figure 4 Schematic view of the vaporization channels in the second steam chamber of the present invention;

[0030] Figure 5 Schematic view of the pipeline connection of the water purification tank and the oil return tank of the present invention;

[0031] Figure 6 is Figure 1 enlarged view of part A in;

[0032] Figure 7 Schematic cross-sectional view at the oil return channel of the present invention;

[0033] Figure 8 is Figure 7 enlarged view of part B in;

[0034] Figure 9 Schematic view of another embodiment of the three-way connector of the present invention;

[0035] Figure 10 Schematic view of the arrangement of the first steam outlets on the upper plate of the present invention;

[0036] Figure 11 Schematic view of the installation of the steam passing seat and the water passing seat of the present invention;

[0037] In the figure: 1. Upper plate; 1.1. First steam outlet;

[0038] 2. Lower plate; 2.1. Heating element; 2.2. Second steam chamber; 2.3. Vaporization channel; 2.4. Second steam outlet;

[0039] 3. First steam chamber;

[0040] 4. Upper base; 4.1. Oil return channel; 4.2. Enclosure; 4.3. Air suction channel; 4.4. Negative pressure fan; 4.5. Positioning seat;

[0041] 5. Three-way connector; 5.1. Water passing seat; 5.11. First ring section; 5.111. Water inlet; 5.12. Second ring section; 5.121. Water outlet; 5.13. Notch; 5.2. Steam passing seat; 5.21. Steam supply pipe; 5.22. Steam passing pipe; 5.23. Condensate water outlet; 5.3. Filter seat; 5.4. Filter element;

[0042] 6. Lower base; 6.1 Water purification tank; 6.2 Oil return tank; 6.21 Condensate inlet; 6.22 Oil return inlet; 6.23 Negative pressure interface; 6.3 First pump body; 6.4 Second pump body; 6.5 Steam generator;

[0043] 7. Oil-absorbing paper; 8. High-temperature area; 9. Low-temperature area;

[0044] 10. Guide assembly; 10.1 Deflector; 10.2 Torsion spring; 10.3 Buckle;

[0045] 11. Heat conduction ribs; 12. Ribs; 13. Control panel; 14. Atomizer; Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] It should be understood that although the terms upper, middle, lower, top, one end, etc. appear in this article to describe various components, these components are not limited by these terms. These terms are only used to distinguish the components from each other for easy understanding, rather than for defining any directional or sequential limitations.

[0048] As Figure 1-2 shown, a steam-type smokeless baking tray includes: an upper base 4 assembly, a lower base 6 assembly, and a baking tray assembly. A receiving cavity matching the baking tray assembly is provided on the upper base 4 assembly. Among them, the upper base 4 assembly is used to input steam and water to the baking tray assembly to moisturize the ingredients and recover oil fume and grease. The lower base 6 assembly is arranged below the upper base 4 assembly and is used to provide a receiving space for working components.

[0049] The baking tray assembly includes an upper tray 1 and a lower tray 2 that are hermetically closed. The surface of the upper tray 1 forms a working surface for grilling ingredients. The upper tray 1 and the lower tray 2 are closed to form a first steam cavity 3. A plurality of first steam outlets 1.1 are evenly distributed on the working surface of the upper tray 1 of the first steam cavity 3, so as to act steam on the bottom of the ingredients, moisten the bottom of the ingredients, and prevent the ingredients from sticking to the working surface;

[0050] The lower base 2 is provided with a heating element 2.1 and a second steam chamber 2.2. The second steam chamber 2.2 is provided with a meandering vaporization channel 2.3. A plurality of second steam outlets 2.4 communicating with the second steam chamber 2.2 are evenly distributed on one side of the upper base 4 assembly. The second steam outlets 2.4 are arranged above the working surface of the upper plate 1, so as to act the steam on the surface of the food material and moisten the surface of the food material. Among them, the heating element 2.1 is specifically embedded in the lower base 2. The lower part of the heating element 2.1 constitutes the meandering wall surface of the vaporization channel 2.3. The upper part of the heating element 2.1 extends and is in full contact with the upper plate 1, so as to provide heat for grilling the food material on the upper plate 1;

[0051] The upper base 4 assembly includes an upper base 4 for receiving the baking pan assembly and a three-way connector 5 detachably arranged in the upper base 4. The upper base 4 is provided with an oil return channel 4.1 around the outer periphery of the baking pan assembly. The upper part of the oil return channel 4.1 is open for grease and the oil-water mixture to enter, and at least part of the outer edge of the upper baking pan is placed above the oil return channel 4.1;

[0052] The three-way connector 5 is detachably arranged in the upper base 4 in a plugging or rotating form, and specifically includes a water passing seat 5.1 and a steam passing seat 5.2 which are sleeved with each other. The water passing seat 5.1 communicates the second steam chamber 2.2 and the second steam outlet 2.4. The steam passing seat 5.2 communicates the first steam chamber 3 and the first steam outlet 1.1;

[0053] The lower base 6 assembly includes a lower base 6 placed at the bottom of the upper base 4, and a water purification tank 6.1 and an oil return tank 6.2 accommodated in the lower base 6. A first pump body 6.3 is arranged between the water purification tank 6.1 and the water passing seat 5.1. Water is conveyed to the second steam chamber 2.2 through the first pump body 6.3 and the water passing seat 5.1. A second pump body 6.4 and a steam generator 6.5 are arranged between the water purification tank 6.1 and the steam passing seat 5.2. Water is conveyed to the steam generator 6.5 through the second pump body 6.4 and steam is output to the first steam chamber 3 through the steam passing seat 5.2. Among them, the oil return tank 6.2 is communicated with the oil return channel 4.1, and the bottom of the three-way connector 5 is communicated with the oil return tank 6.2 for condensed water to enter the oil return tank 6.2.

[0054] The suction assembly includes suction openings formed on any one side or multiple sides above the baking pan assembly, a suction channel 4.3 arranged on the periphery of the upper base 4 assembly, and a negative pressure fan 4.4. Among them, the suction channel 4.3 communicates with the suction openings and the oil return tank 6.2, and the negative pressure fan 4.4 is docked with the oil return tank 6.2 and provides negative pressure inside the oil return tank 6.2. And the suction openings on at least one side are arranged opposite to the second steam outlet 2.4, so that while the suction assembly sucks oil fumes, it also plays a role in sucking the steam above the baking pan assembly. Especially, it guides the steam at the second steam outlet 2.4 to pass through the surface of the food under the suction action. At the same time, the sucked steam adheres to the oil fumes and enters the oil return tank 6.2, thus synchronously ensuring the surface humidification effect and the suction effect.

[0055] As a further improvement to the baking pan assembly, in this embodiment, a first steam cavity 3 is formed between the upper surface of the lower pan 2 and the lower surface of the upper pan 1. And the heating element 2.1 is preferably embedded in the lower pan 2 and partially protrudes from the upper surface of the lower pan 2. The protruding part of the heating element 2.1 enters the first steam cavity 3 and is adjacent to the lower surface of the upper pan 1, so as to provide heat for the first steam cavity 3, the second steam cavity 2.2 and the upper pan 1.

[0056] Specifically, the cross-section of the upper pan 1 is arched to guide the grease so that the grease can flow smoothly into the oil return channel 4.1; the upper surface of the lower pan 2 is also provided with heat conduction ribs 11, and the heat conduction ribs 11 approach or contact the lower surface of the upper pan 1, thereby improving the heat conduction effect between the arched upper pan 1 and the heating element 2.1. At the same time, the heat conduction ribs 11 can also be formed on the lower surface of the lower pan 2 to form the boundary of the vaporization channel 2.3, making the baking pan assembly fit more tightly.

[0057] It should be noted that the setting position of the enclosure is not limited to the position shown in the present invention Figure 1 but can also be enclosed around the periphery of the baking pan assembly, and a suction assembly or the steam outlet connecting the second steam cavity is connected and arranged inside it.

[0058] Preferably, the heat conduction ribs 11 are arranged at intervals with respect to the contour of the heating element 2.1 to allow the steam of the steam seat 5.2 to be evenly output to the heating surface.

[0059] Furthermore, the heat conduction ribs 11 are densely arranged on the periphery of the steam seat 5.2 or in the middle of the upper pan 1, and are relatively loosely arranged on the periphery of the upper pan 1 compared with the middle part to adapt to the arched upper pan 1. It is easier to converge heat in the middle of the upper pan 1 to form a fast heating area, and it is easier to output dense steam on the periphery of the upper pan 1 to form a humidification area.

[0060] Specifically, convex ribs 12 are protruding on the surface of the upper plate 1. The convex ribs 12 can be arranged horizontally or vertically, or in a horizontal and vertical crisscross pattern, and the convex ribs 12 are flush with the surface of the upper plate 1, so that the surface of the food ingredients can be fully heated. Moreover, the first steam outlet 1.1 is arranged between two adjacent convex ribs 12, thereby guiding the steam from the first steam outlet 1.1.

[0061] In this embodiment, the heating element 2.1 is arranged in an M shape.

[0062] Such as Figure 3 and Figure 4 As shown, as a further explanation of the first steam chamber 3, the heat conducting ribs 11 are arranged on both sides of the heating element 2.1 according to its contour; as a further explanation of the second steam chamber 2.2, the vaporization channels 2.3 are arranged according to the contour of the heating element 2.1. The vaporization channels 2.3 are symmetrically arranged and open at both ends of the heating element 2.1 for steam output. And at least on the side away from the suction port in the second steam chamber 2.2, a steam collecting chamber is formed. The steam collecting chamber communicates with both ends of the vaporization channel 2.3. Of course, according to actual needs, the steam collecting chamber can also be arranged on multiple sides, as long as it is not on the same side as the suction port.

[0063] Furthermore, the water outlet of the water passing seat corresponds to the middle of the M-shaped heating element, and a retaining rib surrounding the vaporization channel is also provided on the lower plate, thereby defining the water outlet area and ensuring that the water body completely enters the vaporization channel.

[0064] Under normal circumstances, the grease on the upper surface of the upper plate 1 forms an oil-water mixture under the action of steam moistening, thereby improving fluidity and enabling it to slide along the arch into the oil return channel 4.1. To further improve the above-mentioned reflux effect, the working surface of the upper plate 1 adopts a hydrophobic surface. Thus, under the action of the hydrophobic surface and the upward steam, the oil-water mixture is guided to travel towards the oil return channel 4.1 and the entry of the oil-water mixture into the first steam outlet 1.1 is reduced.

[0065] Furthermore, the hydrophobic surface can be selected as the commonly used non-stick coating in the current market. This non-stick coating has been widely used and will not be elaborated here. It can also be selected as a physical hydrophobic surface, that is, multiple closely spaced grooves are processed on the working surface by laser. The grooves can be arranged in a single direction or in a spiral shape on the working surface to guide the grease or oil-water mixture to the oil return channel 4.1.

[0066] In some other cases, part of the oil-water mixture on the working surface enters the first steam outlet 1.1 and enters the first steam chamber 3. For this reason, a filtering component is provided in the middle of the upper base 4 assembly. The filtering component is integrated in the three-way connector 5 and is connected to the steam passing seat 5.2, and guides the oil-water mixture through the bottom of the steam passing seat 5.2 and into the oil return tank 6.2 along with the condensed water.

[0067] Further, the above-mentioned hydrophobic surface is also provided on the upper surface of the lower disc 2, and the upper surface of the lower disc 2 is arched relative to the upper disc 1, so as to guide the oil-water mixture to travel towards the filter assembly.

[0068] When both the upper and lower discs 2 are arranged in an arched shape, the heat conducting ribs 11 at the bottom of the upper disc 1 also undergo an adaptive change, preferably being in abutting contact with the upper surface of the lower disc 2, or the heat conducting ribs 11 at the upper part of the lower disc 2 also undergo an adaptive change and are in abutting contact with the lower surface of the upper disc 1.

[0069] Specifically, the oil return channel 4.1 is connected to the oil return tank 6.2 through a pipeline.

[0070] Specifically, an oil absorption paper 7 is padded in the oil return tank 6.2, and the oil absorption paper 7 can adsorb the oil-water mixture to prevent the oil-water mixture entering the oil return tank 6.2 from flowing back under negative pressure.

[0071] Optionally, a positioning seat 4.5 for the tee joint 5 to be clamped therein is provided in the middle of the lower base 6, and the tee joint 5 is arranged in the middle of the lower base 6.

[0072] As Figure 9 As shown, as a further explanation of the steam passing seat 5.2 and the water passing seat 5.1, the steam passing seat 5.2 includes a steam supply pipe 5.21 and a steam passing pipe 5.22 arranged at the bottom of the steam supply pipe 5.21. One end of the steam passing pipe 5.22 is connected to the steam generator 6.5, and the other end is provided with a condensate water port 5.23 connected to the oil return tank 6.2. The steam supply pipe 5.21 is connected to the middle of the steam passing pipe 5.22. The steam generator 6.5 conveys steam to the steam passing pipe 5.22 through a pipeline. Most of the steam travels upward through the steam supply pipe 5.21 and enters the first steam chamber 3, and a small part of the steam condenses in the steam passing pipe 5.22 and enters the oil return tank 6.2 through the other end of the steam passing pipe 5.22, so as to provide purified water in the oil return tank 6.2;

[0073] The water passing seat 5.1 includes a first ring section 5.11 sleeved on the steam passing pipe 5.22 and a second ring section 5.12 arranged at the end of the first ring section 5.11. The first ring section 5.11 is connected to the water inlet 5.111 of the first pump body 6.3 through a pipeline. The circumferential direction of the second ring section 5.12 is provided with a water outlet 5.121, and the water outlet 5.121 is placed in the second steam chamber 2.2, so as to convey water to the second steam chamber 2.2. Among them, the first ring section 5.11 is placed at both ends of the steam passing pipe 5.22, so that the steam passing seat 5.2 and the water passing seat 5.1 are fixed and limited to each other, ensuring position stability and facilitating later assembly and disassembly.

[0074] During the process of the three-way connector 5 transporting steam and water, the purified water in the first ring section 5.11 provides a certain cooling effect on the steam supply pipe 5.21, which is beneficial to wet the steam supply pipe 5.21 and increase the generation amount of condensate, so as to increase the water volume in the return oil tank 6.2, thus eliminating the need to additionally set purified water in the return oil tank 6.2. Moreover, the wet steam supply pipe 5.21 and the condensate flowing downward therein play a guiding and carrying role for the oil-water mixture entering the steam supply pipe 5.21, which is beneficial to guiding the oil-water mixture entering the steam supply pipe 5.21 through the water passing port into the return oil tank 6.2 via the first steam outlet 1.1 and the first steam chamber 3.

[0075] Through the above improvement, since the water passing seat 5.1 and the steam passing seat 5.2 are separately and independently arranged, and the second steam outlet 2.4 is located above the baking tray assembly and is the object to be sucked under the action of the suction assembly, the oil-water mixture will not enter the second steam outlet 2.4, so there is no need to consider filtering or making the water passing seat 5.1 detachable.

[0076] In some other embodiments, to clean the steam passing seat 5.2 after long-term use, the steam passing seat 5.2 is detachably arranged on the upper base 4.

[0077] As Figure 11 shown, as an embodiment of the detachable steam passing seat 5.2, the water passing seat 5.1 is arranged as an annular kit, and the steam passing seat 5.2 is arranged as a tubular part. Among them, both ends of the bottom of the steam passing seat 5.2 are connected to the return oil tank 6.2 and the steam generator 6.5 and radially extend out. Moreover, the water passing seat 5.1 is provided with notches 5.13 for avoiding both ends of the steam passing seat 5.2. The steam passing seat 5.2 is inserted into the bottom of the water passing seat 5.2 through the two notches 5.13 and then rotated. At this time, the steam passing seat 5.2 is also supported on the upper base 4, and after rotation, the steam passing seat 5.2 is axially limited with the water passing seat 5.1.

[0078] Specifically, one notch 5.13 is radially penetrated through the first ring body and the second ring body, and the other notch 5.13 is not radially penetrated through the first ring body and the second ring body.

[0079] From Figure 9 it can be seen that as an optimized way of connecting the steam passing pipe 5.22 with the return oil tank 6.2, the steam passing pipe 5.22 is horizontally arranged at the bottom of the air supply pipe, and the bottom of the steam passing pipe 5.22 is provided with an inclined drainage boundary. The bottom end of the drainage boundary is provided with a condensate water port 5.23, and the condensate water port 5.23 is communicated with the return oil tank 6.2.

[0080] Specifically, a sealing liner is arranged in the condensate water port 5.23, and the sealing liner is integrally extended with a pipeline and communicated with the return oil tank 6.2;

[0081] In this embodiment, as a way of planning the internal components of the lower base 6, a control panel 13 is provided on the front side of the lower base 6, a water tank is arranged on the left side of the lower base 6, and an oil return tank 6.2, a first pump body 6.3, a second pump body 6.4, and a steam generator 6.5 are arranged on the right side of the lower base 6. The three-way connector 5 is arranged in the middle of the lower base 6, and the negative pressure fan 4.4 is arranged between the oil return tank 6.2 and the three-way connector 5, and its air outlet path passes through the water tank at least partially. Thus, the lower base 6 is divided into a low-temperature area 9 and a high-temperature area 8 by the clean water tank 6.1 and the oil return tank 6.2. One end of the steam pipe 5.22 communicating with the oil return tank 6.2 is adjacent to or located in the low-temperature area 9, which is beneficial to the condensation of steam in the low-temperature area 9, and then a downward fluid is formed in the steam seat 5.2, so as to supply water to the oil return tank 6.2 and bring out the oil-water mixture in the steam seat 5.2. And one end of the steam pipe 5.22 communicating with the steam generator 6.5 is adjacent to or located in the high-temperature area 8, which is beneficial to preheating the water body and keeping the steam warm. At the same time, the oil return tank 6.2 located in the high-temperature area 8 can also ensure that the grease in it does not solidify, which is convenient for later cleaning. Even if the oil-absorbing paper 7 is not provided, the oil collection function can be realized.

[0082] In this embodiment, a cavity for accommodating the oil return tank 6.2 is provided in the lower base 6. The oil return tank 6.2 is arranged to be pullable along the side of the lower base 6, or the oil return tank 6.2 is arranged to be pullable along the bottom of the lower base 6. By detachably arranging the oil return tank 6.2, it is convenient to clean after cooking.

[0083] Specifically, the oil return tank 6.2 forms a connection end face and a pull-out end face along the pull-out direction. The pull-out end face is used for the user to operate and disassemble. The connection end face is provided with a condensate water inlet 6.21, an oil fume inlet, an oil return inlet 6.22, and a negative pressure interface 6.23 for docking with the negative pressure fan 4.4. Among them, the negative pressure interface 6.23 is located at the upper part of the connection end face, and the condensate water inlet 6.21, the oil fume inlet, and the oil return inlet 6.22 are all located at the lower part of the connection end face and are docked with the internal oil-absorbing paper 7. Through this kind of setting, it is possible to avoid the oil-water mixture being sucked out again by the negative pressure fan 4.4.

[0084] From Figure 9 it can be seen that in this embodiment, as a further implementation manner of the filter assembly, the filter assembly includes:

[0085] A filter seat 5.3, which is embedded in the top of the steam seat 5.2, and the filter seat 5.3 forms a steam outlet channel with a T-shaped cross-section in the vertical direction;

[0086] The filter element 5.4 is sleeved on the bottom of the filter seat 5.3, and at least part of the filter element 5.4 is exposed in the first steam chamber 3 to form a grease contact surface. The steam outlet channel outputs steam above the grease contact surface. In some cases, grease may also enter the steam chamber. The filter element 5.4 is provided to reduce or avoid the grease entering the steam chamber. At the same time, the internal steam can also soften the grease and increase its fluidity.

[0087] Specifically, at least part of the bottom of the filter element 5.4 is exposed in the steam seat 5.2 to form a grease contact surface, so that the grease can pass through the steam seat 5.2, improving the softening effect on the grease.

[0088] Optionally, the filter element 5.4 can be made of an oil-absorbing material.

[0089] As Figure 2 and Figure 5 shown, as a further optimization of the oil extraction function, the upper base 4 includes a retaining wall 4.2 for forming the boundary of the accommodating cavity. The second steam outlets 2.4 are evenly distributed along the contour of the retaining wall 4.2, and the second steam outlets 2.4 are obliquely arranged towards the bottom of the accommodating cavity, so as to give the steam a tendency to blow towards the surface of the food ingredients.

[0090] Specifically, an air suction port is also opened on the retaining wall 4.2. An air suction channel 4.3 communicating with the air suction port is provided inside the retaining wall 4.2. A negative pressure fan 4.4 communicating with the air suction channel 4.3 is provided inside the lower base 6. The air suction port is arranged opposite to the second steam outlet 2.4, and the air suction port is located below the second steam outlet 2.4. When the air suction port sucks the cooking fumes, part of the steam at the second steam outlet 2.4 is sucked into the air suction channel 4.3 under the negative pressure. The cooking fumes and the steam enter the oil return tank 6.2 together. At the same time, the steam obliquely passes through the surface of the food ingredients, optimizing the moistening effect on the food ingredients.

[0091] As Figure 6 shown, specifically, a guiding component 10 is further provided on the top of the upper base 4. The guiding component 10 includes a deflector plate 10.1 hinged to the top of the upper base 4, and a torsion spring 10.2 abutted between the upper base 4 and the deflector plate 10.1. The deflector plate 10.1 is fixed to the upper base 4 through a buckle 10.3, and the deflector plate 10.1 has an open state and a closed state through the torsion spring 10.2 and the buckle 10.3. The deflector plate 10.1 forms an angle with respect to the baking tray assembly in the open state, and the deflector plate 10.1 forms the inner boundary of the upper base 4 in the closed state.

[0092] Among them, the second steam outlet is blocked by the deflector plate in Figure 1 and is thus marked in a dotted line manner. The second steam outlet is not limited to the Figure 1 round hole shape in and can also be a strip-shaped output port setting.

[0093] In the above embodiment, the second pump body 6.4 is connected to the steam over seat 5.2 through a pipeline. The steam generator 6.5 refers to a heating cylinder provided on the pipeline, which can be sleeved on the pipeline or form a part of the pipeline. To reduce the length of the heating cylinder, an atomizer 14 is further provided between the second pump body 6.4 and the steam generator 6.5. The water body is first atomized by the atomizer 14 and then input into the steam generator 6.5, thereby improving the vaporization efficiency. The heating element 2.1 outputs heat to both the first steam chamber 3 and the second steam chamber 2.2 at the same time.

[0094] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A steam - type smokeless baking tray, characterized in that, Comprising: an upper base (4) assembly, a lower base (6) assembly, and a baking tray assembly, wherein an accommodation cavity matching the baking tray assembly is provided on the upper base (4) assembly; The baking tray assembly includes an upper tray (1) and a lower tray (2) that are hermetically closed with each other. The upper tray (1) and the lower tray (2) are closed to form a first steam cavity (3). A plurality of first steam outlets (1.1) are evenly distributed on the upper tray (1) in the first steam cavity (3). A heating element (2.1) and a second steam cavity (2.2) are provided in the lower tray (2). A meandering vaporization channel (2.3) is provided in the second steam cavity (2.2). Second steam outlets (2.4) are evenly distributed on the outer side of the upper base (4) assembly in the second steam cavity (2.2). The second steam outlets (2.4) are arranged above the working surface of the upper tray (1); The upper base (4) assembly includes an upper base (4) and a three-way connector (5) detachably arranged in the upper base (4). An oil return channel (4.1) is provided at the connection between the upper base (4) and the upper tray (1). The three-way connector (5) includes a water passage seat (5.1) and a steam passage seat (5.2). The water passage seat (5.1) communicates the second steam cavity (2.2) and the second steam outlets (2.4). The steam passage seat (5.2) communicates the first steam cavity (3) and the first steam outlets (1.1); The lower base (6) assembly includes a lower base (6) placed at the bottom of the upper base (4), a water purification tank (6.1) and an oil return tank (6.2) accommodated in the lower base (6). A first pump body (6.3) is provided between the water purification tank (6.1) and the water passage seat (5.1). A second pump body (6.4) and a steam generator (6.5) are provided between the water purification tank (6.1) and the steam passage seat (5.2). The oil return tank (6.2) is communicated with the oil return channel (4.1). The bottom of the three-way connector (5) is communicated with the oil return tank (6.2) to allow condensed water to enter the oil return tank (6.2).

2. The steam type smokeless baking tray according to claim 1, wherein: The upper tray has an arched working surface. The oil return channel (4.1) is provided on the periphery of the upper tray, and at least part of the outer edge of the upper tray is placed above the return channel.

3. A steam-type smokeless baking tray according to claim 1, characterized in that: A positioning seat (4.5) for the three-way connector (5) to be clamped therein is provided in the middle of the lower base (6). The three-way connector (5) is arranged in the middle of the lower base (6). The oil return tank (6.2) is arranged to be slidable with respect to the side of the lower base (6), or the oil return tank (6.2) is arranged to be slidable with respect to the bottom of the lower base (6).

4. A steam-type smokeless baking tray according to claim 1 or 3, characterized in that: The steam passage seat (5.2) includes a steam supply pipe (5.21) and a steam passage pipe (5.22) arranged at the bottom of the steam supply pipe (5.21). One end of the steam passage pipe (5.22) is connected to the steam generator (6.5), and the other end is connected to the oil return tank (6.2); The water passing seat (5.1) includes a first ring section (5.11) sleeved on the steam passing pipe (5.22), and a second ring section (5.12) annularly arranged at the end of the first ring section (5.11). The first ring section (5.11) is placed on both ends of the steam passing pipe (5.22), and an annular water outlet (5.121) is provided on the second ring section (5.12). The water outlet (5.121) is placed in the second steam cavity (2.2).

5. The steam type smokeless baking tray according to claim 4, wherein: The steam passing pipe (5.22) is horizontally arranged at the bottom of the steam supply pipe, and a drainage boundary is provided at the bottom of the steam passing pipe (5.22). A condensate water outlet (5.23) is provided at the bottom end of the drainage boundary, and the condensate water outlet (5.23) communicates with the return oil tank (6.2). The lower base (6) is divided into a low-temperature area (9) and a high-temperature area (8) by a water purification tank (6.1) and a return oil tank (6.2). One end of the steam passing pipe (5.22) communicating with the return oil tank (6.2) is adjacent to or located in the low-temperature area (9).

6. A steam type smokeless baking tray according to claim 1, characterized in that: A filtering component is provided at the top of the steam passing seat (5.2). The filtering component includes: A filtering seat (5.3) is embedded at the top of the steam passing seat (5.2), and the filtering seat (5.3) forms a steam outlet channel with a T-shaped cross-section in the vertical direction. A filtering element (5.4) is sleeved at the bottom of the filtering seat (5.3), and the filtering element (5.4) at least exposes to form a grease contact surface in the first steam cavity (3). The steam outlet channel outputs steam above the grease contact surface.

7. The steam type smokeless baking tray according to claim 6, characterized in that: At least a part of the bottom of the filtering element (5.4) is exposed in the steam passing seat (5.2) and forms a grease contact surface.

8. A steam type smokeless baking tray according to claim 1, characterized in that: The upper base (4) includes a fence (4.2) for forming the boundary of the accommodating cavity. The second steam outlets (2.4) are evenly distributed along the contour of the fence (4.2), and the second steam outlets (2.4) are obliquely arranged towards the bottom of the accommodating cavity.

9. The steam type smokeless baking tray according to claim 8, wherein: An air suction port is also opened on the fence (4.2). An air suction channel (4.3) communicating with the air suction port is provided in the fence (4.2). A negative pressure fan (4.4) communicating with the air suction channel (4.3) is provided in the lower base (6). The air suction port is arranged opposite to the second steam outlet (2.4), and the air suction port is located below the second steam outlet (2.4).

10. A steam-type smokeless baking tray according to claim 1, characterized in that: A guiding component (10) is further provided at the top of the upper base (4). The guiding component (10) includes a guiding plate (10.1) hinged at the top of the upper base (4), and a torsion spring (10.2) abutted between the upper base (4) and the guiding plate (10.1). The guiding plate (10.1) is fixed to the upper base (4) by a buckle (10.3), and the guiding plate (10.1) has an open state and a closed state through the torsion spring (10.2) and the buckle (10.3). The guiding plate (10.1) forms an angle with respect to the baking tray component in the open state, and the guiding plate (10.1) forms the inner boundary of the upper base (4) in the closed state.

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