Air outlet cover and cooking equipment
By incorporating an air vent and a deflector into the cooking equipment, the problem of uneven airflow within the cooking cavity is solved, achieving uniform airflow and even heating of the food.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-03
AI Technical Summary
In existing cooking equipment, uneven airflow within the cooking cavity can occur due to structural obstructions or blade rotation, affecting the cooking results.
An air hood is installed in the cooking equipment. The air hood has a return air inlet and an air outlet. A guide plate is installed on both sides of the air outlet. The guide plate forms a specific angle and direction with the side plate. In conjunction with the rotation direction of the air outlet blades, airflow circulation and uniform guidance are achieved.
The design of airflow circulation and deflectors improves the uniformity of airflow within the cooking cavity, ensuring even heating of ingredients.
Smart Images

Figure CN223958683U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of kitchen appliance technology, and in particular to exhaust hoods and cooking equipment. Background Technology
[0002] In daily life, people frequently use cooking appliances such as steam ovens, ovens, or microwave ovens to cook food. These appliances require a hot air assembly to blow hot air evenly onto the food. However, in some technologies, uneven airflow within the cooking cavity can occur due to structural obstructions or blade rotation, affecting the cooking process. Utility Model Content
[0003] Embodiments of this application provide an air vent and a cooking device that can improve the uniformity of airflow within the cooking cavity.
[0004] In a first aspect, embodiments of this application provide an air outlet shroud. A main board body is provided with a return air vent. A side panel body is disposed on at least one side of the main board body and connected to the main board body. The side panel body is provided with an air outlet having a first direction and a second direction, and guide vanes are provided on both opposite sides of the air outlet in the second direction on the side panel body.
[0005] Optionally, the deflector extends obliquely from the edge of the air outlet in a direction away from the side panel towards the center of the air outlet, and the projection of the deflector on the side panel covers at least part of the air outlet.
[0006] Optionally, the angle between the air guide plates on both sides of the air outlet and the side plate is the same.
[0007] Optionally, the angle between the guide plate on the side of the air outlet away from the main body and the side plate is greater than the angle between the guide plate on the side of the air outlet closer to the main body and the side plate.
[0008] Optionally, the angle between the guide plate on the side of the air outlet away from the main body and the side plate is smaller than the angle between the guide plate on the side of the air outlet closer to the main body and the side plate.
[0009] Optionally, the first direction is perpendicular to the second direction, the first direction is the length direction of the air outlet, and the second direction is the width direction of the air outlet; at least one of the air outlets has a tangent to the outer diameter of the rotating air outlet blade corresponding to the return air outlet in the second direction.
[0010] Optionally, the motherboard body has different first reference direction and second reference direction, and the motherboard body has a side plate body on at least one side in the first reference direction, and the first direction of the air outlet is inclined relative to the first reference direction.
[0011] Optionally, the first reference direction is the length direction of the motherboard body, and the second reference direction is the width direction of the motherboard body;
[0012] And / or, the motherboard body is configured on one side of the second reference direction to correspond to the recessed portion of the device body.
[0013] Secondly, embodiments of this application provide a cooking device. The cooking device includes a main body and the aforementioned air outlet shroud, the air outlet shroud being installed on the main body.
[0014] Optionally, the cooking device also includes air outlet blades corresponding to the return air vent of the air outlet cover, the air outlet blades being configured to switch rotation directions.
[0015] The beneficial effects of this application are as follows: Unlike existing technologies, by setting a return air vent on the main body and an air outlet on the side panel, the cooking device can generate airflow circulation within the cooking cavity under the action of the air outlet blades, thereby promoting heat circulation within the cooking cavity and achieving the purpose of cooking food. Specifically, by setting guide vanes on both sides in the second direction, when the air outlet blades rotate clockwise, the airflow can be primarily guided by the guide vane on one side of the second direction. When the air outlet blades rotate counterclockwise, the airflow can be primarily guided by the guide vane on the other side of the second direction. Through this method, regardless of whether the air outlet blades rotate clockwise or counterclockwise, the airflow can be directed forward by the guide vanes on both sides. In other words, setting guide vanes on both sides in the second direction reduces the impact of the airflow direction of the air outlet on the air outlet hood, thereby improving the uniformity of airflow within the cooking cavity. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the cooking equipment of this application;
[0017] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the cooking equipment shown.
[0018] Figure 3 This is a structural schematic diagram of an embodiment of the air outlet cover of this application;
[0019] Figure 4 yes Figure 3 The diagram shows a cross-sectional view of the air vent at the Chun Ge mouth. Detailed Implementation
[0020] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0021] Combination Figures 1 to 2 This application provides a cooking device 1. The cooking device 1 provided in this application embodiment can be a microwave oven, oven, or steam oven. The cooking device 1 provided in this application embodiment can also be an integrated machine combining any two of the three functions of microwaving, steaming, or baking. The cooking device 1 provided in this application embodiment can also be a microwave-steam-bake integrated machine. The cooking device 1 includes a main body 10, an air outlet assembly 20, and an air outlet hood 30.
[0022] Specifically, the main body 10 can install and support various components. Depending on the type of cooking device 1, the main body 10 can support microwave components, steam components, or heating components, etc. The main body 10 has a cooking cavity 101. The cooking cavity 101 can be used to place food and can contain microwaves, steam, or hot air to heat the food. Optionally, the two ends of the main body 10 have openings that communicate with the cooking cavity 101 respectively. One opening on one side of the main body 10 can be used to install a door (not shown), which can open or close the opening, allowing a user to put or take food into or out of the cooking cavity 101 through the opening. The opening on the other side of the main body 10 can be used to install an exhaust hood 30 and an exhaust assembly 20. The exhaust hood 30 and the exhaust assembly 20 can cooperate to generate airflow within the cooking cavity 101 to achieve uniform heating of the food.
[0023] In some embodiments, a recessed portion 11 is provided on one side of the main body 10 facing the cooking cavity 101. The recessed portion 11 can accommodate components such as microwave components, steam components, or heating components. The recessed portion 11 allows the size of components such as microwave components, steam components, or heating components to be partially accommodated in the cooking cavity 101, thereby reducing the overall space occupied by the cooking device 1.
[0024] The air outlet assembly 20 is installed on the main body 10 of the equipment. The air outlet assembly 20 can discharge air into the cooking cavity 101 through the air outlet cover 30. The air outlet assembly includes a fixed cover, a bracket, a drive unit, and air outlet blades. The drive unit can be fixed to the fixed cover via the bracket. The air outlet blades are driven and connected to the drive unit. The air outlet blades can generate airflow by rotating. The airflow generated by the air outlet blades can be guided into the cooking cavity 101 through the air outlet cover 30.
[0025] An air hood 30 is installed on the main body 10 of the device and communicates with the cooking cavity 101. The air hood 30 is installed at one end of the main body 10 with an opening. The air hood 30 is provided with an air outlet 321, through which the airflow generated by the air outlet assembly 20 can enter the cooking cavity 101. The air hood 30 can rectify and guide the airflow generated by the air outlet assembly 20, and then guide the airflow into the cooking cavity 101. The air hood 30 can also form a return air inlet 311 corresponding to the air outlet assembly 20, through which the airflow in the cooking cavity 101 can flow back to the air outlet blades. In this way, airflow circulation can be formed in the cooking cavity 101, thereby promoting the flow of heat in the cooking cavity 101 and improving the uniformity of heating of food inside the cooking cavity 101.
[0026] In some embodiments, combined with Figure 2 The main body 10, air outlet hood 30, and air outlet assembly 20 are separately configured. The main body 10 can be used to install the air outlet hood 30 and the air outlet assembly 20. The air outlet assembly 20 can drive airflow convection through the rotation of the air outlet blades. The air outlet hood 30 can integrate and guide the airflow, thereby inputting it into the cooking cavity 101 in a desired manner. By setting the main body 10, air outlet hood 30, and air outlet assembly 20 separately, different air outlet hoods 30 and air outlet assemblies 20 can be selected and equipped during the assembly process. By selecting different air outlet hoods 30 and air outlet assemblies 20, cooking equipment 1 with different configurations can be assembled.
[0027] In some embodiments, the cooking device 1 further includes air outlet blades corresponding to the return air vent 311 of the air outlet hood 30, and the air outlet blades are configured to switch their rotation direction. The air outlet blades generate airflow in different directions when rotating clockwise and counterclockwise, thereby affecting the state of the airflow introduced into the cooking cavity 101. By setting the rotation direction of the air outlet blades to be changeable, the airflow state within the cooking cavity 101 can be altered according to specific circumstances or different structures at the air outlet 321 (described later), thereby improving the uniformity of the airflow.
[0028] Combination Figures 3 to 4 This application provides an air outlet cover 30. The air outlet cover 30 includes a main body 31 and a side plate 32. The main body 31 is provided with a return air port 311. The side plate 32 is disposed on at least one side of the main body 31 and is connected to the main body 31. The side plate 32 is provided with an air outlet 321. Through the air outlet 321 of the side plate 32, airflow generated by the air outlet blades of the cooking device 1 can be introduced into the cooking cavity 101, and through the return air port 311 of the main body 31, the airflow in the cooking cavity 101 can flow back to the air outlet blades from the return air port 311. In this way, airflow circulation can be formed in the cooking cavity 101.
[0029] For ease of description, the mainboard body 31 has different first reference directions (illustrated in conjunction with the X direction in the figure) and second reference directions (illustrated in conjunction with the Y direction in the figure). At least one side of the mainboard body 31 in the second reference direction is configured to correspond to the side of the device body 10 where the recessed portion 11 is located. Optionally, the first reference direction is the length direction of the mainboard body 31, and the second reference direction is the width direction of the mainboard body 31. Optionally, the first and second reference directions are perpendicular. Optionally, when the cooking device 1 is in use, the second reference direction is parallel to the direction of gravity.
[0030] In some embodiments, the air outlet 321 has a first direction and a second direction. The first direction and the second direction can be orthogonal. For example, the first direction can be the length direction of the air outlet 321, and the second direction can be the width direction of the air outlet 321. In other embodiments, the first direction can be the width direction of the air outlet 321, and the second direction can be the length direction of the air outlet 321. Optionally, the shape of the air outlet 321 can be rectangular, elliptical, or rhomboid, etc.
[0031] Combination Figures 3 to 4 In some embodiments, the air outlet 321 has a first direction and a second direction. Deflectors 322 are provided on both sides of the air outlet 321 in the second direction. The deflectors 322 guide the airflow from the air outlet 321. By providing the deflectors 322, the airflow from the air outlet 321 can be directed towards the front of the main body 31. In other words, the deflectors 322, in conjunction with the air outlet 321, can change the direction of the airflow to improve the uniformity of the airflow inside the cooking cavity 101. When deflectors 322 are provided on both sides of the air outlet 321 in the second direction, when the air outlet blades rotate clockwise, the airflow can be mainly guided by the deflector 322 on one side of the second direction. When the air outlet blades rotate counterclockwise, the airflow can be mainly guided by the deflector 322 on the other side of the second direction. Through this method, regardless of whether the air outlet blades rotate clockwise or counterclockwise, the airflow can be guided forward by the deflectors 322 on both sides. In other words, providing guide vanes 322 on both sides in the second direction can reduce the influence of the airflow direction of the air outlet hood 30 on the airflow deflection, thereby improving the uniformity of airflow in the cooking cavity 101. Optionally, the projection of the guide vanes 322 on the side plate 32 covers at least part of the air outlet 321.
[0032] In some embodiments, the air outlet 321 is inclined relative to a first reference direction in a first direction. The main body 31 has opposing front and rear sides in its thickness direction, and the side plate 32 is inclined rearward from the outer edge of the main body 31 in a direction away from the main body 31.
[0033] Furthermore, at least one of the air outlets 321 has a tangent in the rotational outer diameter of the air outlet blade corresponding to the return air outlet 311 in the second direction. In this way, the arrangement of the guide plate 322 can be further matched with the rotational direction of the air outlet blade, thereby effectively guiding the airflow to the cooking cavity 101.
[0034] In some embodiments, combined with Figure 4 The guide vanes 322 extend obliquely from the edge of the air outlet 321 away from the side plate 32 towards the center of the air outlet 321. In other words, the guide vanes 322 on both sides of the air outlet 321 extend obliquely from the side plate 32 towards each other. The projection of the guide vanes 322 onto the side plate 32 covers at least a portion of the air outlet 321. In this way, the airflow blowing out of the air outlet 321 can be directly blocked by the guide vanes 322, thereby changing the direction of the airflow.
[0035] In some embodiments, combined with Figure 4 The angle between the guide vanes 322 on both sides of the air outlet 321 and the side plate 32 is the same. Figure 4 The dashed arrow on the left side illustrates the primary airflow guiding function of the left-side deflector 322. Figure 4 The dotted-line arrow on the right side illustrates the primary airflow guiding function of the right-side guide vane 322. Even when the air outlet blades change direction, the guide vanes 322 on both sides of the air outlet 321 can still guide the airflow forward. By setting the guide vanes 322 on both sides of the air outlet 321 to have the same angle, the optimization effect of the air outlet 321 on the airflow is highly consistent after the air outlet blades change direction, thereby minimizing the impact of the air outlet blades' direction on the airflow direction and improving the uniformity of airflow within the cooking cavity 101.
[0036] In some embodiments, the angle between the guide vane 322 and the first direction is 0 degrees.
[0037] In some embodiments, the angle between the guide plate 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 is greater than the angle between the guide plate 322 on the side of the air outlet 321 close to the main body 31 and the side plate 322.
[0038] In other embodiments, the angle between the guide plate 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 is smaller than the angle between the guide plate 322 on the side of the air outlet 321 closer to the main body 31 and the side plate 32.
[0039] On the one hand, when the angle between the baffle 322 and the side plate 32 is relatively small, it can guide the airflow to the area of the cooking cavity 101 near the air outlet hood 30 (proximal end). When the angle between the baffle 322 and the side plate 32 is relatively large, it can guide the airflow to the area of the cooking cavity 101 away from the air outlet hood 30 (far end). In the aforementioned embodiment, the angle between the baffle 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 is greater than the angle between the baffle 322 on the side of the air outlet 321 near the main body 31 and the side plate 32, or the angle between the baffle 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 is smaller than the angle between the baffle 322 on the side of the air outlet 321 near the main body 31 and the side plate 32, can enable the baffle 322 to guide the airflow to different areas within the cooking cavity 101, thereby increasing the uniformity of the airflow.
[0040] On the other hand, combining Figure 3 In terms of the specific structure of the air outlet hood 30, since the guide plates 322 on both sides of the air outlet 321 are arranged opposite to each other, the structure that the guide plates 322 directly face in the cooking cavity 101 is not exactly the same. For example... Figure 3 On the right side plate 32, the left side guide plate 322 extends toward the side wall of the cooking cavity 101, and the right side guide plate 322 extends toward the interior of the cooking cavity 101.
[0041] In this configuration, by setting the angle between the guide plate 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 to be greater than the angle between the guide plate 322 on the side of the air outlet 321 closer to the main body 31 and the side plate 32, the guide plate 322 on the side of the air outlet 321 away from the main body 31 can directly guide the airflow to the cooking cavity 101, while the guide plate 322 on the side of the air outlet 321 closer to the main body 31 can guide the airflow to the side wall of the cooking cavity 101, and then guide it to the cooking cavity 101 after reflection by the side wall. Since the side plate 32 is closer to the side wall, the airflow entering the cooking cavity 101 in the aforementioned two ways has higher consistency (including when the direction of the air outlet blades changes), thereby increasing the uniformity of the airflow.
[0042] In this configuration, the angle between the guide plate 322 on the side of the air outlet 321 away from the main body 31 and the side plate 32 is smaller than the angle between the guide plate 322 on the side of the air outlet 321 closer to the main body 31 and the side plate 32. The guide plate 322 on the side of the air outlet 321 away from the main body 31 can directly guide the airflow into the cooking cavity 101 at a smaller angle, and into the area (proximal end) of the cooking cavity 101 near the air outlet hood 30. The guide plate 322 on the side of the air outlet 321 closer to the main body 31 can guide the airflow to the side wall of the cooking cavity 101 at a larger angle, and then, after reflection from the side wall, blow it towards the area (far end) of the cooking cavity 101 away from the air outlet hood 30, thereby increasing the uniformity of the airflow within the cooking cavity 101.
[0043] In other embodiments, the guide vanes 322 on different sides can have different guiding effects on the airflow. In the second reference direction, the guide vanes 322 on both sides can respectively guide the airflow mainly to the upper and lower sides. For example, the angle between one guide vane 322 and the air outlet 321 in the first direction can be adjusted to be greater than 0 degrees, while the angle between the other guide vane 322 and the air outlet 321 in the first direction is less than 0 degrees. Optionally, the angles between the two guide vanes 322 and the first direction are centrally symmetrical. In this way, the air outlet blades 24 can also guide the airflow to the upper and lower sides respectively by rotating clockwise and counterclockwise alternately, thereby effectively increasing the uniformity of the airflow.
[0044] In some embodiments, the side plate 32 is disposed on the adjacent side of the main plate 31 and the recessed portion 11. The first direction of the air outlet 321 is inclined away from the recessed portion 11 in the direction away from the main plate 31. In this way, the side plate 32 with the air outlet 321 can bypass the obstruction of the recessed portion 11, so that the airflow of the air outlet 321 can be smoothly discharged into the cooking cavity 101, thereby promoting the flow of air in the cooking cavity 101 and improving the uniformity of airflow. Optionally, the side plate 32 is disposed on at least one side in the first reference direction. The side plate 32 being disposed on one side in the first reference direction can bypass the recessed portion 11 disposed on the second reference direction side, thereby helping to improve the uniformity of airflow.
[0045] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. An air outlet cover, characterized in that, include: The motherboard body is provided with a return air vent. A side panel is disposed on at least one side of the main body and is connected to the main body; The side plate is provided with an air outlet, which has a first direction and a second direction. The side plate is provided with guide plates on both sides of the air outlet in the second direction.
2. The air outlet hood according to claim 1, characterized in that: The air guide plate extends obliquely from the edge of the air outlet in a direction away from the side plate towards the center of the air outlet, and the projection of the air guide plate on the side plate covers at least a portion of the air outlet.
3. The air outlet hood according to claim 2, characterized in that: The angle between the guide plates on both sides of the air outlet and the side plate is the same.
4. The air outlet hood according to claim 2, characterized in that: The angle between the guide plate and the side plate on the side of the air outlet away from the main body is greater than the angle between the guide plate and the side plate on the side of the air outlet closer to the main body.
5. The air outlet hood according to claim 2, characterized in that: The angle between the guide plate and the side plate on the side of the air outlet away from the main body is smaller than the angle between the guide plate and the side plate on the side of the air outlet closer to the main body.
6. The air outlet hood according to claim 1, characterized in that: The first direction is perpendicular to the second direction, the first direction is the length direction of the air outlet, and the second direction is the width direction of the air outlet; at least one of the air outlets has a tangent in the second direction to the rotational outer diameter of the air outlet blade corresponding to the return air outlet.
7. The air outlet hood according to claim 1, characterized in that: The motherboard has a first reference direction and a second reference direction. The motherboard has a side plate on at least one side of the first reference direction. The air outlet is inclined relative to the first reference direction in the first direction.
8. The air outlet hood according to claim 7, characterized in that: The first reference direction is the length direction of the motherboard body, and the second reference direction is the width direction of the motherboard body; And / or, the motherboard body is configured on one side of the second reference direction to correspond to the recessed portion of the device body.
9. A cooking device, characterized in that, include: The equipment body and the air outlet hood as described in any one of claims 1-8, wherein the air outlet hood is mounted on the equipment body.
10. The cooking apparatus according to claim 9, characterized in that: The cooking device also includes air outlet blades corresponding to the return air inlet of the air outlet hood, and the air outlet blades are configured to switch rotation directions.