Air outlet cover and cooking equipment

By designing near-zone and far-zone air outlets in the cooking equipment and utilizing different angle designs of the guide plate, the problem of uneven airflow in the cooking cavity is solved, achieving uniform airflow distribution and uniform heating of the food.

CN223958682UActive Publication Date: 2026-03-03HANDAN MIDEA INTELLIGENT KITCHEN ELECTRIC MFG CO LTD +1
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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

Technical Problem

In existing cooking equipment, uneven airflow within the cooking cavity can occur due to structural obstructions or blade rotation, affecting the uniform heating of food.

Method used

Design an air hood, including a main body and a side body, with near-zone and far-zone air outlets. By designing the near-zone guide plate and the far-zone guide plate at different angles, the airflow is guided to different areas in the cooking cavity to improve the uniformity of airflow.

Benefits of technology

The design of the baffle plate enables a uniform distribution of airflow within the cooking cavity, improving the uniformity of food heating and heat exchange capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air outlet cover and cooking equipment. The air outlet cover comprises a main plate body and a side plate body. The main plate body is provided with an air return port. The side plate bodies are arranged on at least one side of the main plate body and connected with the main plate body. Wherein the side plate body is provided with a near-zone air outlet and a far-zone air outlet, the near-zone air outlet is provided with a near-zone guide plate, the far-zone air outlet is provided with a far-zone guide plate, and the included angle between the near-zone guide plate and the side plate body is smaller than the included angle between the far-zone guide plate and the side plate body. In this way, the uniformity of airflow in the cooking cavity can be improved.
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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 hood. The air outlet hood includes a main body and a side plate. The main body is provided with a return air vent. The side plate is disposed on at least one side of the main body and is connected to the main body. The side plate is provided with a near-zone air outlet and a far-zone air outlet. The near-zone air outlet is provided with a near-zone guide vane, and the far-zone air outlet is provided with a far-zone guide vane. The angle between the near-zone guide vane and the side plate is smaller than the angle between the far-zone guide vane and the side plate.

[0005] Optionally, the area of ​​the near-zone air outlet is smaller than the area of ​​the far-zone air outlet.

[0006] Optionally, the motherboard body has different first reference directions and second reference directions. The motherboard body has a side plate on at least one side in the first reference direction, and the length directions of the near-zone air outlet and the far-zone air outlet are set at an angle with the first reference direction.

[0007] Optionally, the acute angle formed by the length direction of the near-zone air outlet and the first reference direction is greater than the acute angle formed by the length direction of the far-zone air outlet and the first reference direction.

[0008] Optionally, at least one near-zone air outlet and at least one far-zone air outlet constitute a set of air outlet units, and in the second reference direction, the side panel is provided with multiple sets of air outlet units.

[0009] Optionally, the angle between the near-area deflector and the side plate is between 20° and 50°;

[0010] The angle between the far-field deflector and the side plate is between 60° and 90°.

[0011] Optionally, the near-zone deflector is located on the side of the near-zone air outlet away from the main body, and the far-zone deflector is located on the side of the far-zone air outlet away from the main body.

[0012] Optionally, the angle between the projection of the near-zone deflector onto the plane of the main body and the first reference direction corresponds to the angle between the near-zone air outlet and the first reference direction; the angle between the projection of the far-zone deflector onto the plane of the main body and the first reference direction corresponds to the angle between the far-zone air outlet and the first reference direction.

[0013] 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;

[0014] 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.

[0015] 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.

[0016] The beneficial effects of this application are as follows: Unlike existing technologies, the smaller angle between the near-zone guide vane and the side plate allows for a greater change in airflow direction, thus directing the airflow towards the area of ​​the cooking cavity near the air outlet. The larger angle between the far-zone guide vanes allows for a change in airflow direction, thus directing the airflow towards the area of ​​the cooking cavity away from the air outlet. Through this method, airflow can be simultaneously directed towards both the area near and away from the air outlet in the cooking cavity, thereby improving the uniformity of airflow within the cooking cavity and balancing the heat exchange capacity of different areas within the cooking cavity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cooking equipment of this application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the cooking equipment shown.

[0019] Figure 3 This is a schematic diagram of the structure of one embodiment of the air outlet cover of this application;

[0020] Figure 4 yes Figure 3 A schematic diagram of the air outlet cover from another angle;

[0021] Figure 5 yes Figure 3 The diagram shows the structure of the air outlet hood facing the side panel.

[0022] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure at point AA of the air outlet hood;

[0023] Figure 7 yes Figure 5 The diagram shows a cross-sectional view of the air outlet BB. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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 a near-zone air outlet 3211 and a far-zone air outlet 3212, 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 also has a return air inlet 311 corresponding to the air outlet assembly 20, through which the airflow in the cooking cavity 101 can return 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.

[0030] In some embodiments, combined with Figure 2 and Figure 3 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.

[0031] 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 rotation directions. 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 adjusted according to specific circumstances to improve the uniformity of the airflow.

[0032] Combination Figures 3 to 5This 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 a near-zone air outlet 3211 and a far-zone air outlet 3212. Through the near-zone air outlet 3211 and the far-zone air outlet 3212 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. In this way, an airflow circulation can be formed in the cooking cavity 101.

[0033] 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.

[0034] In some embodiments, the shapes of the near-zone air outlet 3211 and the far-zone air outlet 3212 may be rectangular, elliptical, or rhomboid.

[0035] Combination Figures 3 to 5 In some embodiments, both the near-zone air outlet 3211 and the far-zone air outlet 3212 have length and width directions. A near-zone guide vane 3221 is provided on one side of the near-zone air outlet 3211 in the width direction (in conjunction with...). Figure 7 A far-zone deflector 3222 is installed on one side of the far-zone air outlet 3212 in the width direction (in conjunction with...). Figure 6 The near-zone deflector 3221 and the far-zone deflector 3222 guide the airflow from the near-zone air outlet 3211 and the far-zone air outlet 3212, respectively. By setting the near-zone deflector 3221 and the far-zone deflector 3222, the airflow from the near-zone air outlet 3211 and the far-zone air outlet 3212 can be directed towards the front of the main body 31. In other words, the near-zone deflector 3221 and the far-zone deflector 3222 can work with the near-zone air outlet 3211 and the far-zone air outlet 3212 to change the direction of the airflow, thereby improving the uniformity of the airflow inside the cooking cavity 101. In some embodiments, the near-zone deflector 3221 is located on the side of the near-zone air outlet 3211 away from the main body 31, and the far-zone deflector 3222 is located on the side of the far-zone air outlet 3212 away from the main body 31.

[0036] In some embodiments, the near-zone air outlet 3211 is inclined relative to the first reference direction in its length direction. The far-zone air outlet 3212 is inclined relative to the first reference direction in its length direction. The main board body 31 has opposing front and rear sides in its thickness direction, and in the direction away from the main board body 31, the side plate body 32 is inclined rearward from the outer edge of the main board body 31.

[0037] In some embodiments, the angle between the near-zone guide plate 3221 and the side plate 32 is smaller than the angle between the far-zone guide plate 3222 and the side plate 32. The smaller angle between the near-zone guide plate 3221 and the side plate 32 allows for a greater change in airflow direction, directing the airflow towards the area of ​​the cooking cavity 101 near the exhaust hood 30. The larger angle between the far-zone guide plates 3222 allows for a change in airflow direction, directing the airflow towards the area of ​​the cooking cavity 101 away from the exhaust hood 30. In this manner, airflow can be simultaneously directed towards both the area of ​​the cooking cavity 101 near and away from the exhaust hood 30, thereby improving the uniformity of airflow within the cooking cavity 101 and balancing the heat exchange capacity of different areas within the cooking cavity 101.

[0038] In some embodiments, the area of ​​the near-zone air outlet 3211 is smaller than the area of ​​the far-zone air outlet 3212. On the one hand, the airflow from the far-zone air outlet 3212 will be significantly reduced when a longer airflow distance is required. By setting the far-zone air outlet 3212 to have a larger area, sufficient airflow can be provided to the area of ​​the cooking cavity 101 far from the air outlet 30. On the other hand, the airflow from the far-zone air outlet 3212 can blow towards the area of ​​the cooking cavity 101 far from the air outlet 30, but it will pass through part of the area of ​​the cooking cavity 101 close to the air outlet 30 along the way. In order to reduce the overlap between the airflow from the near-zone air outlet 3211 and the far-zone air outlet 3212, the near-zone air outlet 3211 can be set to have a smaller area.

[0039] In some embodiments, the angle between the near-zone deflector 3221 and the side plate 32 is between 20° and 50°, for example, 25°, 35°, or 45°. The angle between the far-zone deflector 3222 and the side plate 32 is between 60° and 90°, for example, 65°, 75°, or 85°.

[0040] In some embodiments, the acute angle formed by the length direction of the near-zone air outlet 3211 and the first reference direction is greater than the acute angle formed by the length direction of the far-zone air outlet 3212 and the first reference direction. This facilitates the horizontal flow of the airflow from the near-zone air outlet 3211. The airflow from the far-zone air outlet 3212 can blow towards the area within the cooking cavity 101 away from the air outlet hood 30, but it will pass through a portion of the area within the cooking cavity 101 close to the air outlet hood 30. To reduce the overlap between the airflow from the near-zone air outlet 3211 and the far-zone air outlet 3212, the length direction of the near-zone air outlet 3211 can be set to have a larger angle with the first reference direction, thereby matching the airflow area of ​​the near-zone air outlet 3211 with the airflow area of ​​the far-zone air outlet 3212 and reducing uneven airflow distribution caused by their overlap.

[0041] In some embodiments, at least one near-zone air outlet 3211 and at least one far-zone air outlet 3212 constitute a set of air outlet units, and multiple sets of air outlet units are provided on the side plate 32 in the second reference direction. Multiple cooking zones can be provided within the cooking cavity 101, and one air outlet unit can be provided corresponding to one cooking zone. The air outlet unit for each layer, through the arrangement of the near-zone air outlet 3211 and the far-zone air outlet 3212, can simultaneously accommodate heat exchange in both the areas of each cooking zone near and far from the air outlet hood 30.

[0042] In some embodiments, the angle between the projection of the near-zone deflector 3221 onto the plane of the main body 31 and the first reference direction corresponds to the angle between the near-zone air outlet 3211 and the first reference direction. The angle between the projection of the far-zone deflector 3222 onto the plane of the main body 31 and the first reference direction corresponds to the angle between the far-zone air outlet 3212 and the first reference direction. In other words, viewed from the front, the extension direction of the near-zone deflector 3221 is consistent with the extension direction of the near-zone air outlet 3211. The extension direction of the far-zone deflector 3222 is consistent with the extension direction of the far-zone air outlet 3212.

[0043] In some embodiments, the side plate 32 is disposed on the adjacent side of the main plate 31 corresponding to the recessed portion 11. The length directions of the near-zone air outlet 3211 and the far-zone air outlet 3212 are 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 near-zone air outlet 3211 and the far-zone air outlet 3212 can bypass the obstruction of the recessed portion 11, so that the airflow of the near-zone air outlet 3211 and the far-zone air outlet 3212 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 disposed on one side in the first reference direction can bypass the recessed portion 11 disposed on one side in the second reference direction, thereby helping to improve the uniformity of airflow.

[0044] 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 by, The air outlet cover comprises: a main plate body provided with a return air inlet; a side plate body provided on at least one side of the main plate body, the side plate body being connected with the main plate body; wherein the side plate body is provided with a near-zone air outlet and a far-zone air outlet, the near-zone air outlet is provided with a near-zone flow guide plate, and the far-zone air outlet is provided with a far-zone flow guide plate, an included angle between the near-zone flow guide plate and the side plate body being smaller than an included angle between the far-zone flow guide plate and the side plate body.

2. The air outlet cover according to claim 1, wherein: an area of the near-zone air outlet is smaller than an area of the far-zone air outlet.

3. The air outlet cover according to claim 1, wherein: the main plate body has different first and second reference directions, at least one side of the main plate body in the first reference direction is provided with the side plate body, and a length direction of the near-zone air outlet and the far-zone air outlet is arranged at an acute angle with the first reference direction.

4. The air outlet cover according to claim 3, wherein: an acute angle formed by the length direction of the near-zone air outlet and the first reference direction is greater than an acute angle formed by the length direction of the far-zone air outlet and the first reference direction.

5. The air outlet cover according to claim 3, wherein: at least one near-zone air outlet and at least one far-zone air outlet constitute a group of air outlet units, and in the second reference direction, the side plate body is provided with multiple groups of the air outlet units.

6. The air outlet cover according to claim 1, wherein: the included angle between the near-zone flow guide plate and the side plate body is 20°-50°; the included angle between the far-zone flow guide plate and the side plate body is 60°-90°.

7. The air outlet cover according to claim 2, wherein: the near-zone flow guide plate is arranged on a side of the near-zone air outlet away from the main plate body, and the far-zone flow guide plate is arranged on a side of the far-zone air outlet away from the main plate body.

8. The air outlet cover according to claim 3, wherein: a projection of the near-zone flow guide plate on a plane of the main plate body is arranged at an angle corresponding to an angle between the near-zone air outlet and the first reference direction, and a projection of the far-zone flow guide plate on the plane of the main plate body is arranged at an angle corresponding to an angle between the far-zone air outlet and the first reference direction.

9. The air outlet cover according to claim 3, wherein: the first reference direction is a length direction of the main plate body, and the second reference direction is a width direction of the main plate body; and / or, one side of the main plate body in the second reference direction is configured to be arranged corresponding to a sunken part of a device main body.

10. A cooking apparatus, characterized by, The device main body and the air outlet cover according to any one of claims 1-9 are provided, and the air outlet cover is mounted on the device main body. ​