Air outlet cover and cooking equipment

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 at least two air outlets are arranged on the side plate body, and the areas of the at least two air outlets are sequentially increased in the arrangement direction of the air outlets. In this way, the uniformity of airflow in the cooking cavity can be improved.

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. The air outlet shroud 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. At least two air outlets are arranged on the side plate, and the areas of the at least two air outlets increase sequentially in the arrangement direction of the air outlets.

[0005] Optionally, the rotation direction of the air outlet blades corresponding to the return air outlet is tangential near the side plate, and in the tangential direction, the area of ​​at least two air outlets increases sequentially.

[0006] Optionally, the air outlet has an orthogonal first direction and a second direction. The first direction is set at an angle with the arrangement direction of the main body and the side plate. In the arrangement direction of the air outlet, the angle between the first direction and the arrangement direction of the main body and the side plate decreases sequentially.

[0007] Optionally, the rotation direction of the air outlet blades corresponding to the return air vent has a tangential direction near the side panel, and in the tangential direction, the angle between the first direction and the arrangement direction of the main body and the side panel decreases sequentially.

[0008] Optionally, any air outlet satisfies the following condition: with the geometric center of the air outlet as the pole and the second direction as the polar axis, there exists a tangent line tangent to the outer diameter of the rotation of the air outlet blades within a range of 20 degrees clockwise to 20 degrees counterclockwise from the polar axis; the vector direction of the rotation direction of the air outlet blades on the tangent line is towards the air outlet.

[0009] Optionally, the first direction is the length direction of the air outlet, and the second direction is the width direction of the air outlet.

[0010] Optionally, in the second direction, a deflector is provided on the side of the air outlet away from the main body.

[0011] 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. The air outlet is inclined relative to the first reference direction in the first direction. In the second reference direction, the area of ​​the air outlet gradually increases. In the second reference direction, the angle between the first direction and the first reference direction decreases sequentially.

[0012] 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;

[0013] 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.

[0014] 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.

[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. Furthermore, by progressively increasing the area of ​​the air outlets along their arrangement direction, the gradual change in outlet area can be matched with the differences in wind pressure and air volume along the arrangement direction, thus balancing the airflow of each outlet and 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 schematic diagram of the structure of one embodiment of the air outlet cover of this application;

[0019] Figure 4 This is a schematic diagram of another embodiment of the air outlet cover of this application;

[0020] Figure 5 yes Figure 4 A schematic diagram of the air outlet cover from another angle;

[0021] Figure 6 yes Figure 4 A structural schematic diagram showing the dimensions of the air outlet of the air hood;

[0022] Figure 7 yes Figure 4The diagram shows the structure of the air outlet direction of the air hood. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Combination Figure 3 An air outlet hood 30 is installed on the main body 10 of the device and communicates with the cooking cavity 101. The air outlet hood 30 is installed at one end of the main body 10 with an opening. The air outlet 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 outlet 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 outlet hood 30 also forms 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.

[0029] 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.

[0030] 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.

[0031] 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 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.

[0032] 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.

[0033] 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.

[0034] Combination Figures 3 to 5 In some embodiments, the air outlet 321 has a first direction and a second direction. A guide vane (shown but not labeled) is provided on one side of the air outlet 321 in the second direction. The guide vane can guide the airflow from the air outlet 321. By providing the guide vane, the airflow from the air outlet 321 can be directed towards the front of the main body 31. In other words, the guide vane can cooperate with the air outlet 321 to change the direction of the airflow, thereby improving the uniformity of the airflow inside the cooking cavity 101. Optionally, in the second direction, the guide vane is provided on the side of the air outlet 321 away from the main body 31.

[0035] 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.

[0036] In some embodiments, combined with Figure 5 The guide vane extends obliquely from the edge of the air outlet 321 away from the side plate 32 towards the center of the air outlet 321. The projection of the guide vane 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 vane, thereby changing the direction of the airflow.

[0037] The airflow direction generated by the air outlet blades during rotation is not unidirectional. For the air outlets 321 at different positions on the side plate 32, the airflow direction received by the air outlets 321 at different positions is different, and the distance between the air outlets 321 and the air outlet blades is different. Therefore, the air volume and air pressure corresponding to different air outlets 321 are different, which will further lead to uneven airflow in the cooking cavity 101 after passing through the air outlets 321. In order to improve the above-mentioned technical problems, this application can provide the following embodiments.

[0038] In some embodiments, at least two air outlets 321 are arranged on the side panel 32, and the area of ​​the at least two air outlets 321 increases sequentially in the arrangement direction of the air outlets 321. By setting the area of ​​the air outlets 321 to increase sequentially in the arrangement direction of the air outlets 321, the gradual change in the area of ​​the air outlets 321 can be matched with the differences in wind pressure and air volume in the arrangement direction, thereby balancing the air volume of each air outlet 321, which is beneficial to improving the uniformity of airflow and increasing the uniformity of airflow in the cooking cavity 101.

[0039] In this embodiment, the rotation direction of the air outlet blades is not specifically limited. The rotation direction of the air outlet blades can change during operation. This change in rotation direction will also affect the distribution of air pressure and airflow. The air outlet shroud 30 defined in this embodiment can at least match the air pressure and airflow differences caused by one of the rotation directions of the air outlet blades.

[0040] In some embodiments, the rotation direction of the air outlet blades corresponding to the return air vent 311 is tangential near the side plate 32, and the area of ​​at least two air outlets 321 increases sequentially in the tangential direction. The rotation direction of the air outlet blades during rotation affects the distribution of air pressure and air volume. This embodiment will further describe this in conjunction with the rotation direction of the air outlet blades.

[0041] Specifically, with Figure 3Taking the air outlet hood 30 in the figure as an example, the air outlet hood 30 is provided with a return air vent 311. Taking the air outlet blades corresponding to the return air vent 311 rotating clockwise as an example, the tangent direction of the air outlet blades near the left side plate 32 is upward, and the area of ​​the air outlet 321 increases from bottom to top. The tangent direction of the air outlet blades near the right side plate 32 is downward, and the area of ​​the air outlet 321 increases from top to bottom. When the air outlet blades corresponding to the return air vent 311 are rotating clockwise, due to the influence of inertia and gravity, most of the air on the left side of the return air vent 311 will concentrate on the lower side, while the air on the right side of the return air vent 311 will be relatively concentrated on the upper side, resulting in uneven air pressure and air volume on the upper and lower sides. Based on this, by progressively increasing the area of ​​the air outlets 321 in the tangential direction, smaller air outlets 321 can be positioned to correspond to areas where air is concentrated, thereby reducing the airflow in those areas; while larger air outlets 321 can be positioned to correspond to areas where air is less concentrated, thereby increasing the airflow in those areas. Through this method, the airflow of the air hood 30 can be balanced on both the upper and lower sides, thus improving the uniformity of airflow within the cooking cavity 101.

[0042] Furthermore, with Figure 4 and Figure 5 Taking the air outlet hood 30 as an example, this air outlet hood 30 has two return air inlets 311. Taking the air outlet blades corresponding to the left return air inlet 311 rotating clockwise and the air outlet blades corresponding to the right return air inlet 311 rotating counterclockwise as an example, the tangent direction of the left air outlet blade near the left side plate 32 is upward, and the area of ​​the air outlet 321 increases from bottom to top. Similarly, the tangent direction of the right air outlet blade near the right side plate 32 is upward, and the area of ​​the air outlet 321 increases from bottom to top. With the air outlet blades rotating clockwise on the left and counterclockwise on the right, due to inertia and gravity, most of the air will concentrate on the lower side, resulting in uneven air pressure and airflow between the upper and lower sides. Thus, by arranging the air outlets 321 in the direction of arrangement, and by progressively increasing the area of ​​the air outlets 321 in the tangential direction, smaller air outlets 321 can be positioned to correspond to areas where air is concentrated, thereby reducing the airflow in those areas; while larger air outlets 321 can be positioned to control relatively less concentrated areas, thereby increasing the airflow in those less concentrated areas. Through this method, the airflow of the air hood 30 can be balanced on both the upper and lower sides, thereby improving the uniformity of airflow within the cooking cavity 101.

[0043] With two return air inlets 311 and the same direction of the air outlet blades, the factors affecting the air pressure and air volume of the air outlet 321 are basically the same as those of the single air outlet 321. The arrangement structure is the same as that of the single air outlet 321, and will not be repeated here.

[0044] In some embodiments, the area of ​​the air outlet 321 gradually increases by gradually increasing the length of the air outlet 321 (in conjunction with...). Figure 6 It is implemented in a way that keeps the width unchanged (L1>L2>L3>L4).

[0045] In some embodiments, the air outlets 321 are arranged in the second reference direction, and the area of ​​the air outlets 321 gradually increases in the second reference direction.

[0046] In some embodiments, the air outlet 321 has an orthogonal first direction and a second direction. The first direction is set at an angle to the arrangement direction of the main body 31 and the side plate 32. In the arrangement direction of the air outlet 321, the angle between the first direction and the arrangement direction of the main body 31 and the side plate 32 decreases sequentially. By setting the angle between the first direction of the air outlet 321 and the arrangement direction of the main body 31 and the side plate 32 to decrease sequentially, the first direction of the air outlet 321 at different positions can be matched with the airflow direction generated by the rotation of the air outlet blades, thereby facilitating the air outlet 321 to guide the airflow from the air outlet blades to the cooking cavity 101. Furthermore, since the guide plates are arranged on both sides of the second direction, the guide surface of the guide plates can be oriented towards the airflow direction in the above manner, which is beneficial for the guide plates to change the direction of the airflow.

[0047] In this embodiment, the rotation direction of the air outlet blades is not specifically limited. The rotation direction of the air outlet blades can change during operation. This change in rotation direction will also affect the airflow direction. The air outlet shroud 30 defined in this embodiment can at least match the airflow direction difference caused by one of the rotation directions of the air outlet blades.

[0048] In some embodiments, the rotation direction of the air outlet blades corresponding to the return air vent 311 is tangential near the side plate 32. In this tangential direction, the angle between the first direction and the arrangement directions of the main plate 31 and the side plate 32 decreases sequentially. The rotation direction of the air outlet blades during rotation affects the airflow direction. This embodiment will further explain this in conjunction with the rotation direction of the air outlet blades.

[0049] Specifically, refer to Figure 4 and Figure 5 The air hood 30 in the middle, with Figure 3 Taking the clockwise rotation of the air outlet blades corresponding to the left-side return air inlet 311 as an example, the air outlet blades in the diagram are arranged tangentially from bottom to top along the left side panel 32. (Combined with...) Figure 7 , Figure 7The dotted lines in the diagram indicate the approximate airflow direction during the rotation of the air outlet blades. During rotation, the airflow direction corresponding to the lower air outlet 321 forms a smaller angle with the arrangement direction of the main body 31 and side plates 32. When the air outlet 321 needs to match this airflow direction, the angle between the first direction of the air outlet 321 and the arrangement direction of the main body 31 and side plates 32 needs to be larger. Conversely, the airflow direction corresponding to the upper air outlet 321 forms a larger angle with the arrangement direction of the main body 31 and side plates 32. When the air outlet 321 needs to match this airflow direction, the angle between the first direction of the air outlet 321 and the arrangement direction of the main body 31 and side plates 32 needs to be smaller. Based on this, in Figure 4 and Figure 5 In the case shown, the angle between the first direction of the air outlet 321 and the arrangement direction of the main body 31 and the side body 32 needs to gradually decrease from bottom to top.

[0050] Optionally, the arrangement direction of the main board body 31 and the side plate body 32 is the first reference direction. In the second reference direction, the angle between the first direction and the first reference direction decreases sequentially.

[0051] To further match the air outlet 321 with the airflow direction, this application also provides the following embodiments. Any air outlet 321 satisfies the condition that, with the geometric center of the air outlet 321 as the pole and the second direction as the polar axis, there exists a tangent line tangent to the outer diameter of the rotating air outlet blade within a range of 20 degrees clockwise to 20 degrees counterclockwise from the polar axis. The airflow direction during the rotation of the air outlet blade can be referenced by the tangent line of its outer diameter. In this way, the direction of the air outlet 321 can be further correlated with the airflow direction generated by the air outlet blade, thereby facilitating the air outlet 321 to guide the airflow into the cooking cavity 101.

[0052] The rotation direction of the air outlet blades, in tangential vector direction, points towards the air outlet 321. Figure 7 For example, the air outlet blades corresponding to the return air vent 311 on the left rotate clockwise. The tangent formed by the aforementioned method needs to be tangent to the lower half of the outer diameter of the air outlet blades in order to match the airflow direction generated by the air outlet blades. In other words, the vector direction (or airflow direction) of the rotation direction of the air outlet blades on the tangent line needs to be towards the air outlet 321.

[0053] 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.

[0054] 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 panel has at least two air outlets arranged on it, and the area of ​​the at least two air outlets increases sequentially in the direction of the arrangement of the air outlets.

2. The air outlet hood according to claim 1, characterized in that: The rotation direction of the air outlet blades corresponding to the return air outlet is tangential to the position near the side plate, and the area of ​​at least two air outlets increases sequentially in the tangential direction.

3. The air outlet hood according to claim 1, characterized in that: The air outlet has an orthogonal first direction and a second direction. The first direction is set at an angle with the arrangement direction of the main body and the side plate. In the arrangement direction of the air outlet, the angle between the first direction and the arrangement direction of the main body and the side plate decreases sequentially.

4. The air outlet hood according to claim 3, characterized in that: The rotation direction of the air outlet blades corresponding to the return air vent has a tangential direction near the side plate. In the tangential direction, the angle between the first direction and the arrangement direction of the main plate and the side plate decreases sequentially.

5. The air outlet hood according to claim 3, characterized in that: Any of the air outlets satisfies the following condition: with the geometric center of the air outlet as the pole and the second direction as the polar axis, there exists a tangent line tangent to the outer diameter of the rotation of the air outlet blades within a range of 20 degrees clockwise to 20 degrees counterclockwise from the polar axis; the rotation direction of the air outlet blades is the vector direction of the tangent line towards the air outlet.

6. The air outlet hood according to claim 3, characterized in that: The first direction is the length direction of the air outlet, and the second direction is the width direction of the air outlet.

7. The air outlet hood according to claim 3, characterized in that: In the second direction, a guide plate is provided on the side of the air outlet away from the main body.

8. The air outlet hood according to claim 1, characterized in that: The motherboard has different first reference directions and second reference directions. 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. In the second reference direction, the area of ​​the air outlet gradually increases. In the second reference direction, the angle between the first direction and the first reference direction decreases sequentially.

9. The air outlet hood according to claim 8, 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.

10. A cooking device, characterized in that, include: The equipment body and the air outlet hood as described in any one of claims 1-9, wherein the air outlet hood is mounted on the equipment body.

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