Air outlet cover and integrated cooker comprising same

Abstract

The utility model relates to the technical field of integrated cooker equipment, and particularly discloses an air outlet cover and an integrated cooker comprising the same, the air outlet cover comprises a mounting plate, a transition air duct and an air outlet duct which are arranged in sequence; an air inlet is formed in the mounting plate; an air inlet port of the transition air duct is connected to the air inlet, the cross section of an air outlet port of the transition air duct is similar to an ellipse and is connected to an air inlet port of the air outlet duct, and the cross section of the air outlet duct is similar to an ellipse; the integrated cooker comprises the air outlet cover. The air outlet cover is favorable for avoiding over-concentration of airflow and reducing airflow flow separation and vortex generation, so that noise generated by turbulent flow generated by airflow movement in the air outlet cover is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated stove equipment, in particular to an air outlet hood and an integrated stove comprising the same. Background Art

[0002] At present, integrated stoves have become one of the indispensable kitchen appliances for ordinary families. When the integrated stove is working, the oil smoke is sucked into the smoke hood of the internal bellows under the action of the fan, and then discharged into the public flue or outdoors through the exhaust pipe through the fan volute. An air outlet hood is used to connect the oil smoke suction area and the exhaust pipe. The existing air outlet hood includes a base and a connector. The base is fixed to the air outlet of the bellows of the integrated stove. One end of the connector is connected to the base, and the other end of the connector is connected to the exhaust pipe. The air outlet hood of the integrated stove has the function of gathering and guiding air. The airflow generated by the fan will eventually pass through the air outlet hood and transfer to the exhaust pipe, and then be discharged into the flue. This causes the airflow in the air outlet hood to be too concentrated, and the airflow movement in the hood body becomes turbulent and emits noise, affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the airflow in the air outlet hood is too concentrated, resulting in turbulence of the airflow movement in the air outlet hood and noise, and to provide an air outlet hood and an integrated stove including the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] An air outlet hood, the air outlet hood comprises a mounting plate, a transition air duct and an air outlet air duct arranged in sequence;

[0006] The mounting plate is provided with an air inlet;

[0007] The air inlet port of the transition air duct is connected to the air inlet, the air outlet port of the transition air duct has a quasi-elliptical cross-sectional shape and is connected to the air inlet port of the air outlet air duct, and the air outlet air duct has a quasi-elliptical cross-sectional shape.

[0008] In the present scheme, the air outlet hood includes a mounting plate, a transition duct and an air outlet duct which are arranged in sequence. The above-mentioned arrangement method can make the airflow generated by the range hood be discharged smoothly from the air outlet hood, and the arrangement of the transition duct can guide the airflow to avoid excessive concentration of the airflow in the air outlet hood, thereby reducing the noise emitted by turbulence of the air flow movement in the air outlet hood; the air inlet on the mounting plate is used for the airflow to enter, pass through the transition duct, and then be discharged from the air outlet duct; in addition, the cross-sectional shape of the air outlet port of the transition duct is elliptical and is connected to the air inlet port of the air outlet duct, and the cross-sectional shape of the air outlet duct is elliptical, and the elliptical shape means that its general shape is similar to an ellipse. The cross-sectional shape of the air outlet duct is elliptical, which increases the consistency of the airflow flow, reduces the separation of the airflow and the generation of vortices, thereby helping to reduce the noise emitted by the airflow.

[0009] Preferably, the transition air duct is formed by splicing a plurality of plate-like components along the circumferential direction.

[0010] In this solution, the transition air duct is formed by splicing a plurality of plate-like components along the circumferential direction. The above-mentioned structural arrangement is conducive to the guidance of the airflow, and the transition air duct formed by splicing a plurality of plate-like components along the circumferential direction is more beautiful.

[0011] Preferably, the plate-like components are connected by a first joint surface, and the first joint surface is an arc surface.

[0012] In this solution, the setting of the first joint surface can ensure a stable connection between the plate-like components; in addition, the arc-shaped first joint surface is conducive to the guidance of the airflow in the transition air duct, avoiding excessive concentration of airflow in the air outlet hood, thereby reducing the noise emitted by the airflow in the air outlet hood.

[0013] Preferably, the radial dimension of the transition air duct gradually decreases from the mounting plate toward the air outlet air duct.

[0014] In this scheme, the radial dimension of the transition air duct gradually decreases from the mounting plate toward the air outlet duct. The gradually decreasing cross-section can make the air flow present a decreasing trend in the width direction, increase the consistency of the air flow, reduce the generation of vortices, and reduce the separation of the air flow, so as to reduce the noise of the air flow passing through the air outlet hood.

[0015] Preferably, the air outlet duct includes two oppositely disposed arc surfaces and two oppositely disposed straight plate surfaces, and the arc surface is connected between the two straight plate surfaces.

[0016] In this solution, the arrangement of the arc surface and the straight plate surface in the air outlet duct can increase the consistency of airflow flow, reduce airflow separation and the generation of vortices, and thus reduce the noise of airflow passing through the air outlet cover, compared with the circular cross-section in the prior art.

[0017] Preferably, the arc surface and the two straight plate surfaces are connected by a second joint surface, and the second joint surface is an arc surface.

[0018] In this scheme, the setting of the second splicing surface is conducive to making the connection between the arc surface and the straight plate surface more stable, thereby forming an air outlet duct; in addition, the second splicing surface of the arc surface is conducive to the guidance of the airflow in the transition duct, avoiding excessive concentration of airflow in the air outlet hood, thereby reducing the noise emitted by the airflow in the air outlet hood.

[0019] Preferably, the cross-sectional shape of the air inlet is square.

[0020] In this solution, compared with the circular air inlet duct with a cross-sectional shape in the prior art, the air inlet duct with a square cross-sectional shape can increase the air intake volume.

[0021] Preferably, the inner surfaces of the air outlet duct and the transition duct are both smooth surfaces.

[0022] In this solution, the smooth inner surfaces of the air outlet duct and the transition duct are conducive to the rapid discharge of the airflow, avoiding excessive concentration of the airflow in the air outlet hood, thereby reducing the noise generated by turbulence of the airflow movement in the air outlet hood.

[0023] Preferably, the inner wall of the air outlet duct is provided with a plurality of guide bosses along the circumferential direction, and the cross-sections of the plurality of guide bosses are triangular.

[0024] In this solution, the inner wall of the air outlet duct is provided with a plurality of guide bosses along the circumferential direction. The setting of the bosses has the function of guiding air, reducing the noise of the airflow passing through the air outlet cover, and avoiding the whistling sound of the whole machine; in addition, the cross-sections of the plurality of guide bosses are triangular, and such a structure can improve the guiding effect of the bosses.

[0025] The utility model also provides an integrated stove, which is characterized in that it comprises the above air outlet cover.

[0026] In the present scheme, the air outlet hood is installed on the integrated stove through a mounting plate, and the air outlet hood includes a mounting plate, a transition air duct and an air outlet duct which are arranged in sequence. The above-mentioned arrangement method can make the airflow generated by the range hood be discharged smoothly from the air outlet hood, and the arrangement of the transition air duct can guide the airflow to avoid excessive concentration of the airflow in the air outlet hood, thereby reducing the noise emitted by turbulence of the air flow movement in the air outlet hood; the air inlet on the mounting plate is used for the airflow to enter, pass through the transition air duct, and then be discharged from the air outlet duct; in addition, the cross-sectional shape of the air outlet port of the transition air duct is elliptical and is connected to the air inlet port of the air outlet duct, and the cross-sectional shape of the air outlet duct is elliptical, and the elliptical shape means that its general shape is similar to an ellipse. The cross-sectional shape of the air outlet duct is elliptical, which increases the consistency of the airflow flow, reduces the separation of the airflow flow and the generation of vortices, thereby helping to reduce the noise emitted by the airflow.

[0027] The positive progressive effect of the utility model lies in: in the present scheme, the air outlet hood includes a mounting plate, a transition air duct and an air outlet duct which are arranged in sequence. The above-mentioned arrangement method can make the airflow generated by the range hood be discharged smoothly from the air outlet hood, and the arrangement of the transition air duct can guide the airflow, avoid excessive concentration of the airflow in the air outlet hood, thereby reducing the noise emitted by turbulence of the air flow movement in the air outlet hood; the air inlet on the mounting plate is used for the airflow to enter, pass through the transition air duct, and then be discharged from the air outlet duct; in addition, the cross-sectional shape of the air outlet port of the transition air duct is elliptical and is connected to the air inlet port of the air outlet duct, and the cross-sectional shape of the air outlet duct is elliptical, and the elliptical shape means that its general shape is similar to an ellipse. The cross-sectional shape of the air outlet duct is elliptical, which increases the consistency of the airflow flow, reduces the separation of the airflow flow and the generation of vortices, thereby helping to reduce the noise emitted by the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view structural schematic diagram of an air outlet cover according to an embodiment of the utility model.

[0029] Figure 2 The figure is a schematic diagram of the three-dimensional structure of the air outlet cover according to one embodiment of the utility model.

[0030] Figure 3 Another schematic diagram of the three-dimensional structure of the air outlet cover according to an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] Air outlet hood 100

[0033] Mounting plate 110

[0034] Air Inlet 111

[0035] Transition duct 120

[0036] Plate-like member 121

[0037] First joint surface 122

[0038] Air outlet duct 130

[0039] Arc surface 131

[0040] Straight noodles 132

[0041] Second splicing surface 133

[0042] Diversion boss 134 DETAILED DESCRIPTION

[0043] A preferred embodiment is given below and combined with the accompanying drawings to more clearly and completely illustrate the present invention, but the present invention is not limited to the scope of the embodiment.

[0044] like Figures 1 to 3 As shown, the utility model provides an air outlet hood 100, which includes a mounting plate 110, a transition air duct 120 and an air outlet duct 130 which are arranged in sequence; an air inlet 111 is provided on the mounting plate 110; an air inlet port of the transition air duct 120 is connected to the air inlet 111, and the cross-sectional shape of the air outlet port of the transition air duct 120 is elliptical and connected to the air inlet port of the air outlet duct 130, and the cross-sectional shape of the air outlet duct 130 is elliptical.

[0045] In the present embodiment, the air outlet hood 100 comprises a mounting plate 110, a transition duct 120 and an air outlet duct 130 which are arranged in sequence. The above arrangement can make the airflow generated by the range hood be discharged smoothly from the air outlet hood 100, and the arrangement of the transition duct 120 can guide the airflow to avoid excessive concentration of the airflow in the air outlet hood 100, thereby reducing the noise emitted by turbulence of the air flow movement in the air outlet hood 100; the air inlet 111 on the mounting plate 110 is used for the airflow to enter, pass through the transition duct 120, and then be discharged from the air outlet duct 130; in addition, the cross-sectional shape of the air outlet port of the transition duct 120 is elliptical and is connected to the air inlet port of the air outlet duct 130, and the cross-sectional shape of the air outlet duct 130 is elliptical. Compared with the circular cross-section, the cross-sectional shape of the air outlet duct 130 increases the consistency of the airflow flow, reduces the separation of the airflow flow and the generation of vortices, which is beneficial to reduce the noise emitted by the airflow. The quasi-ellipse can be a standard ellipse, or it can be a shape consisting of two opposite straight sides and two arc sides as in this embodiment, or in other embodiments, a roughly elliptical shape consisting of multiple straight sides. As long as its shape is roughly elliptical, it can be considered to be a quasi-ellipse.

[0046] It should be noted that the radial dimension of the mounting plate 110 is larger than the radial dimension of the transition air duct 120 so as to gather as much airflow generated by the range hood as possible to prevent it from diffusing out, and the radial dimension of the transition air duct 120 is larger than the radial dimension of the outlet air duct 130. It should also be noted that the cross-sectional shape of the air inlet port of the transition air duct 120 is consistent with the cross-sectional shape of the air inlet port 111 of the mounting plate 110.

[0047] refer to Figure 1 It is understood that the transition air duct 120 is formed by splicing a plurality of plate-like components 121 along the circumferential direction.

[0048] In this embodiment, the transition duct 120 is formed by splicing a plurality of plate-like components 121 along the circumferential direction. The above structural arrangement is conducive to the guidance of airflow, and the transition duct 120 formed by splicing a plurality of plate-like components 121 along the circumferential direction is more beautiful.

[0049] It should be noted that there is no limitation on the shape of the plate-like member 121. It should also be noted that the plurality of plate-like members 121 need to be inclined until the cross-section of the air outlet port of the transition air duct 120 formed by the upper ends thereof is elliptical.

[0050] refer to Figure 1 It is understood that the plate-like components 121 are connected by a first joint surface 122 , and the first joint surface 122 is an arc surface 131 .

[0051] In this embodiment, the setting of the first splicing surface 122 can ensure a stable connection between the plate-like components 121; in addition, the first splicing surface 122 of the arc surface 131 is conducive to the guidance of the airflow in the transition air duct 120, avoiding excessive concentration of airflow in the air outlet hood 100, thereby reducing the noise emitted by the airflow in the air outlet hood 100.

[0052] It should be noted that, in the present embodiment, the structure of the first joint surface 122 is only a preferred structural setting mode, but in other alternative actual modes, the first joint surface 122 is also set to any structure applicable thereto, such as a snap connection, a hinge connection, and a bolt connection.

[0053] refer to Figure 1 It is understood that the radial dimension of the transition duct 120 gradually decreases from the mounting plate 110 toward the outlet duct 130 .

[0054] In this embodiment, the radial dimension of the transition duct 120 gradually decreases from the mounting plate 110 toward the outlet duct 130. The gradually decreasing cross-section can cause the airflow to present a decreasing trend in the width direction, increase the consistency of the airflow, reduce the generation of vortices, and reduce the separation of the airflow, so as to reduce the noise of the airflow passing through the outlet hood 100.

[0055] refer to Figure 2 It is understood that the air outlet duct 130 includes two oppositely disposed arc surfaces 131 and two oppositely disposed straight plate surfaces 132 , and the arc surface 131 is connected between the two straight plate surfaces 132 .

[0056] In this embodiment, the arrangement of the arc surface 131 and the straight plate surface 132 in the air outlet duct 130 can increase the consistency of airflow flow, reduce airflow separation and the generation of vortices, and thus reduce the noise of the airflow passing through the air outlet cover 100, compared with the circular cross-section in the prior art.

[0057] It should be noted that the two arc surfaces 131 are parallel to each other, and the two straight plate surfaces 132 are parallel to each other.

[0058] refer to Figure 1 and Figure 2 It is understood that the arc surface 131 and the two straight plate surfaces 132 are connected by a second joint surface 133 , and the second joint surface 133 is the arc surface 131 .

[0059] In this embodiment, the provision of the second splicing surface 133 is conducive to making the connection between the arc surface 131 and the straight plate surface 132 more stable, thereby forming the air outlet duct 130; in addition, the second splicing surface 133 of the arc surface 131 is conducive to guiding the airflow in the transition duct 120, avoiding excessive concentration of airflow in the air outlet hood 100, thereby reducing the noise emitted by the airflow in the air outlet hood 100.

[0060] It should be noted that, in the present embodiment, the structure of the first joint surface 122 is only a preferred structural setting mode, but in other alternative actual modes, the first joint surface 122 is also set to any structure applicable thereto, such as a snap connection, a hinge connection, and a bolt connection.

[0061] refer to Figure 3 It is understood that the cross-sectional shape of the air inlet 111 is square, specifically rectangular. The rectangular air inlet structure at the bottom can increase the air intake. Compared with the traditional circular air outlet cover, the air intake of this structure is increased by more than 20%. At the same time, the air inlet 111 and the air outlet duct 130 are connected by the transition duct 120. The tapered cross-section in the air outlet cover can increase the consistency of the flow, reduce the flow separation, and show a decreasing trend in the width direction, thereby increasing the consistency of the flow and reducing the flow separation and the generation of vortices. The middle transition surface is an inclined cross-section, which is conducive to reducing the flow separation, reducing the generation of lateral flow, and increasing the consistency of the mainstream flow.

[0062] It should be noted that the air inlet port of the transition air duct 120 is also square, which is consistent with the air inlet 111 .

[0063] The air inlet of the air outlet hood is a rectangular surface, the middle section is a transition arc surface, and the air outlet is an elliptical surface. Compared with the structure with a constant airflow flow cross-section, the variable-section airflow circulation structure has a tapered cross-section that can increase flow consistency and reduce flow separation. The airflow shows a decreasing trend in the width direction, which increases flow consistency and reduces flow separation and the generation of vortices. The middle transition surface is an inclined cross-section, which is beneficial to reduce flow separation, reduce the generation of lateral flow, increase the flow consistency of the mainstream, and reduce the noise of the airflow passing through the air outlet hood, thereby achieving lower noise for the entire machine and a better user experience.

[0064] refer to Figure 2 It is understood that the inner surfaces of the outlet duct 130 and the transition duct 120 are both smooth surfaces. A smooth surface means a surface without sharp edges or corners.

[0065] In this embodiment, the smooth inner surfaces of the air outlet duct 130 and the transition duct 120 are conducive to the rapid discharge of the airflow, avoiding excessive concentration of the airflow in the air outlet hood 100, thereby reducing the noise generated by the turbulence of the airflow movement in the air outlet hood 100.

[0066] refer to Figure 2 It is understood that the inner wall of the air outlet duct 130 is provided with a plurality of guide bosses 134 along the circumferential direction, and the cross-sections of the plurality of guide bosses 134 are triangular.

[0067] In this embodiment, the inner wall of the air outlet duct 130 is provided with a plurality of guide bosses 134 along the circumferential direction. The setting of the bosses has the function of guiding air flow, reducing the noise of air flow passing through the air outlet cover 100, and avoiding the whole machine from generating whistling sound. In addition, the cross-sections of the plurality of guide bosses 134 are triangular, and such a structure can improve the guiding effect of the bosses.

[0068] It should be noted that a handle may be provided on the outer wall of the air outlet duct 130 along the circumferential direction to facilitate the installation of the air outlet cover 100 .

[0069] This embodiment also provides an integrated stove, which includes the above air outlet hood 100.

[0070] In the present embodiment, the air outlet hood 100 is installed on the integrated stove by bolt connection of the mounting plate 110, and the air outlet hood 100 includes the mounting plate 110, the transition air duct 120 and the air outlet duct 130 which are arranged in sequence. The above arrangement method can make the airflow generated by the range hood be discharged smoothly from the air outlet hood 100, and the arrangement of the transition air duct 120 can guide the airflow, avoid excessive concentration of the airflow in the air outlet hood 100, thereby reducing the noise emitted by turbulence of the air flow movement in the air outlet hood 100; the air inlet 111 on the mounting plate 110 is used for the airflow to enter, pass through the transition air duct 120, and then be discharged from the air outlet duct 130; in addition, the cross-sectional shape of the air outlet port of the transition air duct 120 is elliptical and is connected to the air inlet port of the air outlet duct 130, and the cross-sectional shape of the air outlet duct 130 is elliptical. The cross-sectional shape of the air outlet duct 130 is elliptical, which increases the consistency of the airflow flow, reduces the separation of the airflow flow and the generation of vortices, thereby helping to reduce the noise emitted by the airflow.

[0071] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or component in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation on the present invention in this regard.

[0072] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An air outlet hood, characterized in that: The air outlet cover comprises a mounting plate, a transition air duct and an air outlet air duct which are arranged in sequence; The mounting plate is provided with an air inlet; The air inlet port of the transition air duct is connected to the air inlet, the air outlet port of the transition air duct has a quasi-elliptical cross-sectional shape and is connected to the air inlet port of the air outlet air duct, and the air outlet air duct has a quasi-elliptical cross-sectional shape.

2. The air outlet cover according to claim 1, characterized in that: The transition air duct is formed by splicing a plurality of plate-like components along the circumferential direction.

3. The air outlet cover according to claim 2, characterized in that: The plate-like components are connected by a first joint surface, and the first joint surface is an arc surface.

4. The air outlet cover according to claim 1, characterized in that: The radial dimension of the transition air duct gradually decreases from the mounting plate toward the air outlet air duct.

5. The air outlet cover according to claim 1, characterized in that: The air outlet duct comprises two arc surfaces arranged opposite to each other and two straight plate surfaces arranged opposite to each other, and the arc surface is connected between the two straight plate surfaces.

6. The air outlet cover according to claim 5, characterized in that: The arc surface and the two straight plate surfaces are connected by a second splicing surface, and the second splicing surface is an arc surface.

7. The air outlet cover according to claim 1, characterized in that: The cross-sectional shape of the air inlet is square.

8. The air outlet cover according to claim 1, characterized in that: The inner surfaces of the air outlet duct and the transition duct are both smooth surfaces.

9. The air outlet cover according to claim 1, characterized in that: The inner wall of the air outlet duct is provided with a plurality of guide bosses along the circumferential direction, and the cross sections of the plurality of guide bosses are triangular.

10. An integrated stove, characterized in that: It comprises the air outlet cover as described in any one of claims 1-9.

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