Oven and steam oven
Patent Information
- Application Number
- PCT/CN2026/099153
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-27
- Filing Date
- 2026-05-26
- Publication Date
- 2026-10-01
Smart Images
Figure CN2026099153_01102026_PF_FP_ABST
Abstract
Description
An oven and a steam oven Technical Field
[0001] This invention relates to the technical field of cooking equipment, and more specifically, to an oven and a steam oven. Background Technology
[0002] Traditional ovens have become an essential cooking appliance in family kitchens, producing fragrant and crispy foods that are loved by consumers. However, during prolonged high-temperature baking, food can easily become dry and hard. The emergence of steam ovens is precisely to solve this problem. By introducing high-temperature steam into the cooking cavity during the baking process, the food is baked through high-temperature steam heat circulation, ultimately achieving a crispy exterior and tender interior.
[0003] In the prior art, Chinese patent application CN113749529A discloses an air-conditioning oven with a hot air circulation heating system. The oven includes an inner cavity, an outer cavity, a hot air circulation system, and a heat dissipation system. The hot air circulation system includes a turbine fan assembly, a motor, and a ventilation duct. The upper part of the ventilation duct is located at the top of the oven, and the lower part of the ventilation duct is located at the side or rear of the oven, and the lower part of the ventilation duct is connected to the turbine fan assembly. The motor drives the turbine fan assembly, and the air produced by the turbine fan assembly flows from the lower part of the ventilation duct to the upper part of the ventilation duct. However, this oven uses a top-outlet and bottom-return airflow method to construct the hot air circulation, which can easily lead to uneven cooking results when baking multiple layers of food. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology in the uneven cooking effect when baking multi-layered ingredients, and to provide an oven and a steam oven that provide uniform heating effect to all parts of the oven through uniform and stable hot air circulation, which is suitable for baking multi-layered ingredients at the same time.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:
[0006] An oven is provided, comprising a cabinet, a door panel rotatably connected to the cabinet for sealing the cabinet, and a hot air circulation system. A partition is provided on the back of the cabinet, dividing the cabinet into a first cavity and a second cavity. The hot air circulation system is disposed in the second cavity. An air inlet coaxial with a fan is provided at the center of the partition, and air outlets are provided around the perimeter of the partition. Hot air generated by the hot air circulation system enters the first cavity through the air outlets and flows back to the second cavity through the air inlet. The hot air circulation system includes a drive motor, a fan, and a heating element. The fan is connected to the drive motor, and the heating element is sleeved on the inner or outer circumference of the fan.
[0007] During operation, the oven of this invention uses a drive motor in the second cavity to rotate the impeller, generating a high-speed airflow. After passing through the heating element, the air is heated into hot air. The hot air passes through the air outlets around the partition and enters the first cavity. Due to the low-pressure area generated in the center of the impeller during rotation, the hot air flows back into the second cavity from the air inlet in the center of the partition, forming a uniform and efficient hot air circulation. The food in the first cavity is baked through the return air heating method, providing a uniform heating effect to all parts of the oven. It is suitable for baking multiple layers of food at the same time.
[0008] Furthermore, the wind turbine includes a baffle plate, blades, and a guide section for guiding airflow. Multiple sets of blades are evenly arranged around the end face of the baffle plate. The guide section is located on or connected to the blades, and / or, the guide section is located on or connected to the baffle plate. During the rotation of the wind turbine, a low-pressure zone is formed at the center, thereby drawing in air. The baffle plate blocks the airflow, changing its direction, and the airflow eventually exits between adjacent blades. During airflow, the guide section on the blades or baffle plate guides the airflow direction, reducing eddies and turbulence that occur during rotation.
[0009] Furthermore, the air guide is an air guide ring disposed at the top of the blade, and the axis of the air guide ring coincides with the axis of the baffle plate. The air guide ring enables the airflow to flow more evenly from all directions in the impeller, thereby uniformly covering the oven cavity and reducing localized high or low temperature areas.
[0010] Furthermore, the air guide ring includes a first arc portion, a circular ring portion, and a second arc portion arranged from top to bottom. The diameter of the outer edge of the second arc portion is equal to the diameter of the baffle plate, and the diameter of the outer edge of the first arc portion is smaller than the diameter of the baffle plate. By controlling the outer diameter of the first arc portion to be smaller than the diameter of the baffle plate, while keeping the diameter of the second arc portion the same as the diameter of the baffle plate, airflow can smoothly enter the air guide ring. This avoids the air guiding effect being affected by the second arc portion being too large, ensuring that the circular ring portion can fully exert its air guiding function and keeping the airflow in all directions consistent.
[0011] Furthermore, the air guide is an air guide trough disposed between the blade and the baffle plate. The air guide trough guides the disordered radial airflow generated on the baffle plate due to the high-speed rotation of the impeller, eliminates local airflow accumulation, and ensures that hot air evenly covers all areas of the cavity.
[0012] Furthermore, the air guide groove includes an annular groove on the end face of the baffle plate and a recessed hole at the bottom of the blade, wherein the axis of the annular groove coincides with the axis of the baffle plate. The annular groove and the recessed hole can cooperate to form airflow channels of different shapes. The cross-sectional area of the air guide groove can be adjusted according to the air volume during actual operation, and different shapes of the annular groove and the recessed hole can be selected to reduce the processing difficulty.
[0013] Furthermore, the blade includes a first mounting portion and a guide portion vertically connected. The first mounting portion is connected to the baffle plate, and the guide portion is a guide rib provided on the guide portion. The first mounting portion can improve the fixing effect of the blade on the baffle plate, prevent the blade from shaking during rotation, and enhance the stability of the air outlet. The guide rib can not only improve the blade strength, but also guide the airflow direction by changing the airflow path on the surface of the guide portion, forcing the airflow to flow in a predetermined direction, enhancing the uniformity of hot air coverage in the oven cavity, and reducing the difference between cold and hot areas.
[0014] Furthermore, the blade comprises a stacked main blade and reinforcing blades, with the guide ribs located on either the main blade or the reinforcing blade. The use of stacked first and second blades together to form the blade significantly improves its bending stiffness, prevents blade twisting or breakage during high-speed rotation, and enhances the wind turbine's operational stability. The main blade and reinforcing blades can be of the same shape, or only the reinforcing blades can cover most of the main blade area, both providing stable support.
[0015] Furthermore, the air guide is a cutter blade disposed on the other end face of the wind deflector, and the cutter blade is uniformly arranged radially around the axis of the wind deflector. The cutter blade on the other end of the wind deflector can guide the cold air at the back, allowing the cold air at the back to participate in the hot air circulation, thereby increasing the wind pressure during the hot air circulation process.
[0016] Furthermore, the air inlet includes multiple sets of radially distributed first ventilation holes, the outer circumference of the air inlet is circular, and the outer diameter of the air inlet is the same as the diameter of the impeller. The air inlet diameter matches the impeller diameter, and the use of circular air inlets of the same specification fully utilizes the suction effect during the impeller's rotation, allowing the airflow in the first cavity to smoothly pass through the first ventilation holes and flow back into the second cavity.
[0017] Furthermore, the air outlet includes multiple sets of second ventilation holes evenly distributed around the perimeter of the partition, the second ventilation holes being rectangular holes. The multiple sets of second ventilation holes evenly distributed around the perimeter of the partition ensure that the airflow generated by the impeller can flow out evenly from all sides. The rectangular holes allow the hot air to diffuse evenly in a laminar flow state, avoiding the generation of local eddies. By smoothly dispersing the airflow, the uniformity of the airflow velocity passing through the second ventilation holes is improved.
[0018] Furthermore, the second ventilation holes located at the bottom and top of the partition are rectangular holes with a length greater than their height, while the second ventilation holes located on both sides of the partition are rectangular holes with a length less than their height. The shape of the rectangular holes is adapted to the air outlet direction of the impeller, allowing airflow to smoothly exit tangentially from the second ventilation holes regardless of whether the impeller rotates clockwise or counterclockwise. By controlling the shape of the rectangular holes, the air resistance during airflow is reduced, thereby improving the hot air circulation speed and heating efficiency.
[0019] Furthermore, the oven also includes a cooling fan, a centrifugal air duct, and an exhaust box. The cooling fan is positioned between the impeller and the drive motor, and the exhaust box is located at the top of the oven body. The centrifugal air duct connects the cooling fan and the exhaust box. Heat generated by the drive motor during operation is drawn away by the cooling fan and directed through the centrifugal air duct to the exhaust box at the top of the oven body for discharge, preventing overheating of the drive motor during operation and extending its service life.
[0020] The present invention also provides a steam oven, including an oven, a steam generator and a water tank. The water tank is detachably disposed on the side wall of the oven body. The steam generator is disposed in the second cavity. The steam generator has a water inlet communicating with the water tank and a steam outlet communicating with the first cavity.
[0021] The steam oven of the present invention has a water tank installed on the side wall of the oven body. During the operation of the steam oven, the water in the water tank flows into the steam generator through the water inlet and is heated. The generated high-temperature steam enters the first cavity through the steam outlet to participate in cooking. The high-temperature airflow generated by the hot air circulation system works in conjunction with the high-temperature steam to provide a uniform and stable cooking effect for the food in the first cavity, improve the cooking uniformity of the food inside, and at the same time avoid the problem of the food surface drying and hardening.
[0022] Furthermore, the water tank has a recessed grip on the side away from the tank body. The grip includes an arc segment and a straight segment, with both ends of the arc segment connected to the straight segment. The straight segment is inclined to the side wall of the water tank. The recessed grip, formed by the arc and straight segments, creates an approximately triangular structure. When the user needs to lift the water tank, they simply insert four fingers into the grip, with their palm and thumb pressed against the outer wall of the tank, allowing for easy lifting. The grip design conforms to ergonomic principles, ensuring quick assembly and disassembly even when the tank is full of water, and providing a stable grip for easy cleaning.
[0023] Furthermore, an evaporation plate is provided at the bottom of the first cavity, and the bottom of the first cavity is inclined towards the evaporation plate. A heating element is provided at the bottom of the evaporation plate. During the cooking process, the condensate generated inside the first cavity flows along the side wall and bottom of the first cavity and eventually collects in the evaporation plate. The heating element heats the evaporation plate, causing the condensate to turn back into high-temperature steam, realizing the internal steam recycling, increasing the amount of steam during the baking process, and facilitating cleaning.
[0024] Compared with the prior art, the beneficial effects of the present invention are:
[0025] 1. The airflow is guided by the air guide on the impeller to form a uniform and stable hot air circulation effect, providing a uniform heating effect to all parts of the oven, reducing the temperature difference between the top and bottom layers, and is suitable for baking multiple layers of food at the same time to prevent the top from burning and the bottom from being raw.
[0026] 2. Installing the heating element in the second cavity avoids direct contact between the user and the heating element in the cooking cavity, making it easier to clean the cooking cavity and creating the preconditions for automatic cleaning, reducing cleaning dead spots caused by the heating element blocking the way.
[0027] 3. The external, easy-to-grip large water tank structure avoids the tedious operation of adding water multiple times during cooking. The grip design makes it easy for consumers to quickly and easily disassemble and assemble the water tank and prevents it from tipping over.
[0028] 4. An evaporation plate is installed inside the first cavity to evaporate the condensate generated during cooking, realizing the internal steam circulation, which can increase the amount of steam during baking and facilitate cleaning. Attached Figure Description
[0029] Figure 1 is a schematic diagram of the oven structure;
[0030] Figure 2 is a cross-sectional view of position AA in Figure 1;
[0031] Figure 3 is a schematic diagram of the wind turbine structure;
[0032] Figure 4 is a top view of the wind turbine;
[0033] Figure 5 is a schematic diagram of the blade structure;
[0034] Figure 6 is a schematic diagram of the heating system structure;
[0035] Figure 7 is a schematic diagram of the partition structure;
[0036] Figure 8 shows the main view of the steam oven;
[0037] Figure 9 is a cross-sectional view of the BB position in Figure 8;
[0038] Figure 10 is a schematic diagram of the structure of a steam oven;
[0039] Figure 11 is a schematic diagram of the cooling fan structure;
[0040] Figure 12 is a schematic diagram of the water tank structure;
[0041] Figure 13 is a top view of the water tank;
[0042] Figure 14 is a top view of the water tank.
[0043] In the attached diagram: 100, housing; 110, partition; 120, first cavity; 130, second cavity; 140, snap-fit part; 150, evaporator plate; 160, door panel; 170, air inlet; 171, first ventilation hole; 180, air outlet; 181, second ventilation hole; 200, drive motor; 300, impeller; 310, baffle plate; 320, blade; 321, first mounting part; 322, guide part; 323, second mounting part; 324, guide rib; 325, main blade; 326, reinforcing blade. 330, air guide ring; 331, first arc portion; 332, annular portion; 333, second arc portion; 340, air guide groove; 341, annular groove; 342, concave hole; 350, air cutter; 351, fixing part; 352, air cutter; 400, heating component; 510, cooling fan; 520, centrifugal air duct; 530, exhaust box; 600, steam generator; 700, water tank; 710, gripping part; 711, arc segment; 712, straight segment; 720, snap-fit groove; 721, snap-fit block. Embodiments of the present invention
[0044] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0045] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0046] Example 1
[0047] This embodiment is a first embodiment of an oven, including a housing 100, a door panel 160 rotatably connected to the housing 100 for sealing the housing 100, and a hot air circulation system. A partition 110 is provided on the back of the housing 100, which divides the housing 100 into a first cavity 120 and a second cavity 130. The hot air circulation system is located in the second cavity 130. An air inlet 170 coaxial with the impeller 300 is provided at the center of the partition 110, and air outlets 180 are provided around the partition 110. The hot air generated by the hot air circulation system enters the first cavity 120 through the air outlets 180 and flows back to the second cavity 130 through the air inlet 170. The hot air circulation system includes a drive motor 200, an impeller 300, and a heating element 400. The impeller 300 is connected to the drive motor 200, and the heating element 400 is sleeved on the inner or outer circumference of the impeller 300.
[0048] As shown in Figures 1 and 2, during the operation of the oven in this embodiment, the drive motor 200 in the second cavity 130 drives the impeller 300 to rotate, generating a high-speed airflow. After passing through the heating component 400, the air is heated to become hot air. The hot air passes through the air outlets 180 around the partition 110 and enters the first cavity 120. Due to the low-pressure area generated in the center of the impeller 300 during its rotation, the hot air flows back from the air inlet 170 in the center of the partition 110 to the second cavity 130, forming a uniform and efficient hot air circulation. The food in the first cavity 120 is baked by the return air heating, providing a uniform heating effect for all parts of the oven. This is suitable for baking multiple layers of food at the same time.
[0049] As shown in Figure 3, the impeller 300 includes a baffle plate 310, blades 320, and an air guide for guiding airflow. Multiple sets of blades 320 are evenly arranged around the end face of the baffle plate 310. The air guide is located on or connected to the blades 320, and / or the air guide is located on or connected to the baffle plate 310. During the rotation of the impeller 300, a low-pressure zone is formed at the center, thereby drawing in air. The airflow is blocked by the baffle plate 310, changing the airflow direction, and finally flowing out between adjacent blades 320. During the airflow process, the air guide provided on the blades 320 or the baffle plate 310 guides the airflow direction, reducing eddies and turbulence that occur during rotation.
[0050] The air guide can be an air guide ring 330 located at the top of the blade 320, with the axis of the air guide ring 330 coinciding with the axis of the baffle plate 310. The air guide ring 330 allows the airflow to flow more evenly from all directions in the impeller 300, thereby uniformly covering the oven cavity and reducing localized high or low temperature areas.
[0051] As shown in Figure 3, the air guide ring 330 in this embodiment includes a first arc portion 331, a ring portion 332, and a second arc portion 333 arranged from top to bottom. The diameter of the outer edge of the second arc portion 333 is equal to the diameter of the baffle plate 310, while the diameter of the outer edge of the first arc portion 331 is smaller than the diameter of the baffle plate 310. By controlling the outer diameter of the first arc portion 331 to be smaller than the diameter of the baffle plate 310, while keeping the diameter of the second arc portion 333 the same as the diameter of the baffle plate 310, airflow can smoothly enter the air guide ring 330, avoiding the air guiding effect being affected by the excessively large diameter of the second arc portion 333, and ensuring that the ring portion 332 can fully exert its guiding function, keeping the airflow in all directions consistent.
[0052] In this embodiment, the air guide can also be an air guide groove 340 disposed between the blade 320 and the baffle plate 310. The air guide groove 340 guides the disordered radial airflow generated on the baffle plate 310 due to the high-speed rotation of the impeller 300, eliminates local airflow accumulation, and makes the hot air evenly cover all areas of the cavity.
[0053] As shown in Figures 4 and 5, the air guide slot 340 includes an annular groove 341 on the end face of the baffle plate 310 and a recessed hole 342 at the bottom of the blade 320. The axis of the annular groove 341 coincides with the axis of the baffle plate 310. The annular groove 341 and the recessed hole 342 can cooperate to form airflow channels of different shapes. The cross-sectional area of the air guide slot 340 can be adjusted according to the air volume during actual operation, and different shapes of the annular groove 341 and the recessed hole 342 can be selected to reduce the processing difficulty.
[0054] As shown in Figure 5, the blade 320 includes a first mounting portion 321 and a guide portion 322 vertically connected. The first mounting portion 321 is connected to the baffle plate 310. In this embodiment, the guide portion can also be a guide rib 324 provided on the guide portion 322. The first mounting portion 321 can improve the fixing effect of the blade 320 on the baffle plate 310, prevent the blade 320 from shaking during rotation, and enhance the stability of the air outlet. The guide rib 324 can not only improve the strength of the blade 320, but also guide the airflow direction by changing the airflow path on the surface of the guide portion, forcing the airflow to flow in a predetermined direction, enhancing the uniformity of hot air coverage in the oven cavity, and reducing the difference between cold and hot areas. In this embodiment, the top of the blade 320 is also provided with a second mounting portion 323 for connecting the guide ring 330. The second mounting portion 323 is perpendicular to the guide portion 322.
[0055] In this embodiment, the blade 320 includes a stacked main blade 325 and a reinforcing blade 326, with a guide rib 324 disposed on either the main blade 325 or the reinforcing blade 326. As shown in Figure 5, the stacked first blade 320 and second blade 320 together form the blade 320, which can significantly improve the bending stiffness of the blade 320, prevent the blade 320 from twisting or breaking during high-speed rotation, and improve the working stability of the wind turbine 300. The main blade 325 and the reinforcing blade 326 can be of the same shape, or only the reinforcing blade 326 can cover most of the area of the main blade 325, both of which can provide a stable support effect.
[0056] In this embodiment, the air guide can also be a cutter 350 disposed on the other end face of the baffle plate 310. The cutter 350 is uniformly arranged radially around the axis of the baffle plate 310. The cutter 350 on the other end of the baffle plate 310 can guide the cold air at the back, allowing the cold air at the back to participate in the hot air circulation, thereby increasing the wind pressure during the hot air circulation process.
[0057] As shown in Figure 4, the air cutter 350 in this embodiment includes a vertically arranged fixing part 351 and an air cutter part 352, with the fixing part 351 connected to the baffle plate 310. The mounting part perpendicular to the air cutter part 352 can increase the contact area between the air cutter 350 and the baffle plate 310, reduce the installation difficulty of the air cutter 350, and enhance the fixing effect.
[0058] Additionally, it should be noted that the air guide in this embodiment can be any two or more combinations of the air guide ring 330, air guide groove 340, air guide rib 324, and air cutter 350.
[0059] Example 2
[0060] This embodiment is the second embodiment of the oven. This embodiment is similar to the first embodiment, except that, as shown in Figures 1 and 6, the diameter of the impeller 300 is 1 / 2 to 4 / 5 of the width of the partition 110. The oven adopts a large impeller 300 structure, and the size of the fan blade is close to the length and width projection surface of the first cavity 120, which can increase the air volume and air pressure of hot air circulation, reduce cooking time, and is suitable for baking multiple layers of food at the same time.
[0061] As shown in Figure 7, the air inlet 170 includes multiple sets of radially distributed first ventilation holes 171. The outer circumference of the air inlet 170 is circular, and the outer diameter of the air inlet 170 is the same as the diameter of the impeller 300. The diameter of the air inlet 170 is matched with the diameter of the impeller 300. By using the same circular air inlet 170, the suction effect of the impeller 300 during rotation is fully utilized, allowing the airflow in the first cavity 120 to smoothly pass through the first ventilation holes 171 and flow back into the second cavity 130.
[0062] The air outlet 180 includes multiple sets of second ventilation holes 181 evenly distributed around the perimeter of the partition plate 110. The second ventilation holes 181 are rectangular holes. The multiple sets of second ventilation holes 181 evenly distributed around the perimeter of the partition plate 110 ensure that the airflow generated by the impeller 300 can flow out evenly from all sides. The rectangular holes enable the hot air to diffuse evenly in a laminar flow state, avoiding the generation of local eddies. By smoothly dispersing the airflow, the airflow velocity consistency through the second ventilation holes 181 is improved.
[0063] As shown in Figure 7, in this embodiment, the second ventilation holes 181 at the bottom and top of the partition 110 are rectangular holes with a length greater than their height, while the second ventilation holes 181 on both sides of the partition 110 are rectangular holes with a length less than their height. The shape of the rectangular holes is adapted to the air outlet direction of the impeller 300. Regardless of whether the impeller 300 rotates clockwise or counterclockwise, the airflow can be smoothly discharged tangentially from the second ventilation holes 181. By controlling the shape of the rectangular holes, the wind resistance during airflow is reduced, thereby improving the hot air circulation speed and heating efficiency.
[0064] The area of the air outlet 180 is 1 / 2 to 4 / 5 of the area of the air inlet 170. By controlling the area of the air outlet 180 to be 1 / 2 to 4 / 5 of the area of the air inlet 170, based on the principle of fluid continuity, the airflow speed can be increased, ensuring that the airflow from the air outlet 180 is all high-speed, high-temperature airflow, thereby increasing the oven's cooking efficiency when baking multi-layered foods.
[0065] As shown in Figures 2 and 6, the heating component 400 in this embodiment is a spiral heating tube sleeved on the outer circumference of the impeller 300. In actual installation, the spiral heating tube can also be placed on the inner circumference of the impeller 300 as needed. The spiral heating tube increases the surface area, allowing air to fully contact the heating tube as it flows through, thus improving heat exchange efficiency. Simultaneously, the spiral tube's layout around the outer circumference of the impeller 300 saves installation space. When selecting the spacing of the spiral installation tubes, wind resistance and heat conduction requirements must be considered. The spacing should not be too tight, causing obstruction, nor too wide, preventing insufficient heating. This ensures that hot air accelerates evenly between the spiral tubes, improving the uniformity of the outlet air temperature.
[0066] The oven also includes a cooling fan 510, a centrifugal air duct 520, and an exhaust box 530. The cooling fan 510 is located between the impeller 300 and the drive motor 200, and the exhaust box 530 is located at the top of the oven body 100. The centrifugal air duct 520 connects the cooling fan 510 and the exhaust box 530. As shown in Figure 11, the heat generated by the drive motor 200 during operation is drawn away by the cooling fan 510 and directed through the centrifugal air duct 520 to the exhaust box 530 at the top of the oven body 100 for discharge, thus preventing overheating of the drive motor 200 during operation and extending the service life of the drive motor 200.
[0067] Example 3
[0068] This embodiment is the first embodiment of a steam oven, as shown in Figures 8 and 9. It includes an oven, a steam generator 600, and a water tank 700. The water tank 700 is detachably mounted on the side wall of the oven body 100. The steam generator 600 is located in the second cavity 130. The steam generator 600 has a water inlet communicating with the water tank 700 and a steam outlet communicating with the first cavity 120.
[0069] In this embodiment of the steam oven, the water tank 700 is installed on the side wall of the oven body 100. During the operation of the steam oven, the water in the water tank 700 flows into the steam generator 600 through the water inlet and is heated. The generated high-temperature steam enters the first cavity 120 through the steam outlet to participate in cooking. The high-temperature airflow generated by the hot air circulation system works in conjunction with the high-temperature steam to provide a uniform and stable cooking effect for the food in the first cavity 120, improve the cooking uniformity of the food inside, and at the same time avoid the problem of the food surface becoming dry and hard.
[0070] A grip portion 710 recessed into the water tank 700 is provided on the side of the water tank 700 away from the tank body 100. The grip portion 710 includes an arc segment 711 and a straight segment 712. Both ends of the arc segment 711 are connected to the straight segment 712, and the straight segment 712 is inclined to the side wall of the water tank 700. As shown in Figures 12 and 14, the grip portion 710 in this embodiment is recessed into the water tank 700, forming an approximately triangular structure through the arc segment 711 and the straight segment 712. When the user needs to pick up the water tank 700, he only needs to insert four fingers into the grip portion 710, with his palm and thumb pressed against the outer wall of the water tank 700, and he can easily pick up the water tank 700. The design of the grip portion 710 conforms to the ergonomic structure, and even when the water tank 700 is full of water, it will not affect the quick disassembly and assembly effect, and the grip process is stable and easy to clean.
[0071] As shown in Figures 10 and 13, the side wall of the cabinet 100 is provided with a snap-fit part 140, and the water tank 700 is provided with a snap-fit groove 720 close to the side of the cabinet 100. The snap-fit groove 720 is provided with several snap-fit blocks 721. The snap-fit part 140 is inserted into the snap-fit groove 720 and snaps with the snap-fit blocks 721. The snap-fit part 140 on the side wall of the cabinet 100 is connected to the snap-fit groove 720 on the side wall of the water tank 700. The snap-fit blocks inside the snap-fit groove 720 achieve a stable and fast snap-fit effect, keeping the water tank 700 stable during cooking. The external water tank 700 can also overcome the limitation of the internal space of the cabinet 100 on the capacity of the water tank 700, forming a large external water tank 700, avoiding cumbersome multiple water filling operations.
[0072] As shown in Figure 10, an evaporation plate 150 is provided at the bottom of the first cavity 120, and the bottom of the first cavity 120 is inclined towards the evaporation plate 150. A heating element is provided at the bottom of the evaporation plate 150. During the cooking process, the condensate generated inside the first cavity 120 flows along the side wall and bottom of the first cavity 120 and eventually collects in the evaporation plate 150. The heating element heats the evaporation plate 150, causing the condensate to turn back into high-temperature steam, realizing the internal steam recycling, increasing the amount of steam during the baking process, and facilitating cleaning.
[0073] 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.
[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. An oven, characterized in that, The enclosure includes a housing (100), a door panel (160) rotatably connected to the housing (100) for closing the housing (100), and a hot air circulation system. A partition (110) is provided on the back of the housing (100), dividing the housing (100) into a first cavity (120) and a second cavity (130). The hot air circulation system is disposed in the second cavity (130), and the hot air circulation system includes a drive motor (200), a fan wheel (300), and a heating element (…). 400), the impeller (300) is connected to the drive motor (200), and the heating component (400) is sleeved on the inner or outer circumference of the impeller (300); the partition (110) has an air inlet (170) coaxial with the impeller (300) at its center, and an air outlet (180) is provided around the partition (110); the hot air generated by the hot air circulation system enters the first cavity (120) through the air outlet (180) and flows back to the second cavity (130) through the air inlet (170).
2. The oven according to claim 1, characterized in that, The wind turbine (300) includes a wind deflector (310), blades (320), and a wind guide for guiding air. Multiple sets of blades (320) are evenly arranged around the end face of the wind deflector (310). The wind guide is disposed on or connected to the blades (320), and / or the wind guide is disposed on or connected to the wind deflector (310).
3. The oven according to claim 2, characterized in that, The air guide is an air guide ring (330) disposed at the top of the blade (320), and the axis of the air guide ring (330) coincides with the axis of the baffle plate (310).
4. The oven according to claim 3, characterized in that, The air guide ring (330) includes a first arc portion (331), an annular portion (332), and a second arc portion (333) arranged from top to bottom. The diameter of the outer edge of the second arc portion (333) is equal to the diameter of the wind deflector (310), and the diameter of the outer edge of the first arc portion (331) is smaller than the diameter of the wind deflector (310).
5. The oven of claim 2, wherein, The air guide is an air guide groove (340) disposed between the blade (320) and the baffle plate (310).
6. The oven according to claim 5, characterized in that, The air guide groove (340) includes an annular groove (341) provided on the end face of the baffle plate (310) and a recess (342) provided on the bottom of the blade (320). The axis of the annular groove (341) coincides with the axis of the baffle plate (310).
7. The oven of claim 2, wherein, The blade (320) includes a first mounting part (321) and a guide part (322) connected vertically. The first mounting part (321) is connected to the wind deflector (310). The guide part is a guide rib (324) provided on the guide part (322).
8. The oven according to claim 7, characterized in that, The blade (320) includes a main blade (325) and a reinforcing blade (326) stacked together, and the guide rib (324) is provided on the main blade (325) or the reinforcing blade (326).
9. The oven of claim 2, wherein, The air guide is a wind-cutting blade (350) provided on the other end face of the wind baffle (310). The wind-cutting blade (350) is uniformly arranged radially around the axis of the wind baffle (310).
10. The oven of claim 1, wherein, The air inlet (170) includes multiple sets of radially distributed first ventilation holes (171), the outer periphery of the air inlet (170) is circular, and the outer diameter of the air inlet (170) is the same as the diameter of the impeller (300).
11. The oven of claim 1, wherein, The air outlet (180) includes multiple sets of second ventilation holes (181) evenly arranged around the partition (110), and the second ventilation holes (181) are rectangular holes.
12. The oven of claim 11, wherein, The second ventilation holes (181) at the bottom and top of the partition (400) are rectangular holes with a length greater than their height, and the second ventilation holes (181) on both sides of the partition (400) are rectangular holes with a length less than their height.
13. The oven of claim 1, wherein, The oven also includes a cooling fan (510), a centrifugal air duct (520), and an exhaust box (530). The cooling fan (510) is disposed between the impeller (300) and the drive motor (200). The exhaust box (530) is disposed on the top of the oven body (100). The centrifugal air duct (520) connects the cooling fan (510) and the exhaust box (530).
14. A steam oven, characterized by The oven, steam generator (600), and water tank (700) as described in any one of claims 1 to 13 are included. The water tank (700) is detachably disposed on the side wall of the housing (100). The steam generator (600) is disposed in the second cavity (130). The steam generator (600) is provided with a water inlet communicating with the water tank (700) and a steam outlet communicating with the first cavity (120).
15. The steam oven according to claim 14, characterized in that The water tank (700) has a grip portion (710) recessed into the water tank (700) on the side away from the tank body (100). The grip portion (710) includes an arc segment (711) and a straight segment (712). Both ends of the arc segment (711) are connected to the straight segment (712). The straight segment (712) is inclined to the side wall of the water tank (700).
16. The steam oven according to claim 14, characterized in that The bottom of the first cavity (120) is provided with an evaporation plate (150), the bottom of the first cavity (120) is inclined toward the evaporation plate (150), and the bottom of the evaporation plate (150) is provided with a heating tube.