Range hood

Abstract

The application discloses a range hood. The range hood has a front side and a rear side opposite to the front side in a first direction. The range hood comprises a frame, a smoke collecting assembly and an air outlet device. The smoke collecting assembly is mounted on the frame, the frame and the smoke collecting assembly are arranged in a second direction, the smoke collecting assembly has a smoke collecting opening for sucking smoke, and the first direction and the second direction intersect. The air outlet device is mounted on the front side of the smoke collecting assembly, and the air outlet device has an air outlet opening. The air outlet direction of the air outlet opening at least has a component towards the rear side, and the length direction of the air outlet opening of the air outlet device is arranged along a third direction, which is perpendicular to the first direction and the second direction. In this way, the smoke suction effect of the range hood can be optimized.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to range hoods. Background Technology

[0002] In modern kitchens, range hoods effectively remove cooking fumes, ensuring a clean and healthy environment. With the continuous development of range hood technology, higher demands are being placed on their performance. The smoke extraction efficiency is a key performance indicator, and improving this efficiency requires ongoing research and innovation. Utility Model Content

[0003] The embodiments of this application provide a range hood that can optimize the smoke extraction effect of the range hood.

[0004] This application provides a range hood. The range hood has a front side and a rear side opposite to it in a first direction. The range hood includes a frame, a smoke collection assembly, and an air outlet device. The smoke collection assembly is mounted on the frame, and the frame and the smoke collection assembly are arranged in a second direction. The smoke collection assembly has a smoke collection port for drawing in smoke, and the first and second directions intersect. The air outlet device is mounted on the front side of the smoke collection assembly and has an air outlet. The air outlet has at least a rearward component in its air outlet direction, and the length direction of the air outlet device extends along a third direction, which is perpendicular to the first and second directions.

[0005] Optionally, the range hood has a central axis surface in the middle, with a third direction perpendicular to the central axis surface. The distance between the end of the air outlet away from the central axis surface and the central axis surface is greater than or equal to 350 mm, and the distance between the end of the air outlet close to the central axis surface and the central axis surface is greater than or equal to 100 mm.

[0006] Optionally, the width of the air outlet is greater than or equal to 2 mm and less than or equal to 5 mm.

[0007] Optionally, the range hood includes a base plate and a front plate disposed on the front side of the base plate, and an air outlet device is disposed on the side of the front plate away from the frame in a second direction.

[0008] Optionally, the air outlet device has a first side plate and a second side plate. The normal of the first side plate has a rearward component in a first direction and a component close to the frame in a second direction. The normal of the second side plate has a rearward component in the first direction and a component away from the frame in the second direction. The air outlet is disposed on the first side plate.

[0009] Optionally, the air outlet device has a second side plate, the normal of the second side plate having a rearward component in the first direction and a component away from the frame in the second direction, and the air outlet is disposed on the second side plate.

[0010] Optionally, in the first direction, the distance between the end of the air outlet near the rear side and the end face of the front panel near the rear side is less than or equal to 5 mm.

[0011] Optionally, the range hood includes a base plate and a front plate disposed on the front side of the base plate, and an air outlet device disposed on the rear side of the front plate in a first direction.

[0012] Optionally, the air outlet device has a first side plate and a second side plate. The normal of the first side plate has a rearward component in a first direction and a component close to the frame in a second direction. The normal of the second side plate has a rearward component in the first direction and a component away from the frame in the second direction. The air outlet is disposed on the first side plate.

[0013] Optionally, the air outlet device has a first side plate and a second side plate. The normal of the first side plate has a rearward component in a first direction and a component close to the frame in a second direction. The normal of the second side plate has a rearward component in a first direction and a component away from the frame in a second direction. The air outlet is disposed on the second side plate.

[0014] The beneficial effects of this application are as follows: Unlike the prior art, by extending the length of the air outlet upward in the third direction, the air outlet can cover a larger area in the third direction, thereby allowing the smoke in a larger area below the range hood to be affected by the air outlet, thus increasing the volume of smoke drawn by the air outlet and improving the smoke extraction effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the smoke machine of this application;

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the air outlet device of this application in conjunction with a smoke hood;

[0017] Figure 3 This is a schematic diagram of another embodiment of the air outlet device of this application in conjunction with a smoke hood;

[0018] Figure 4 This is a schematic diagram of another embodiment of the air outlet device of this application in conjunction with a smoke hood;

[0019] Figure 5 This is a schematic diagram of the structure of an embodiment of the air outlet device in the smoke hood of this application;

[0020] Figure 6 This is a schematic diagram of another embodiment of the air outlet device in the smoke hood of this application;

[0021] Figure 7 This is a schematic diagram of another embodiment of the air outlet device in the smoke machine of this application. Detailed Implementation

[0022] 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.

[0023] Combination Figure 1 and Figure 2 This application provides a smoke hood 1. The smoke hood 1 includes a frame 10 and a smoke collection assembly 20, with a smoke collection port 211 provided on the smoke collection assembly 20. The smoke collection assembly 20 is mounted on the frame 10, and the smoke hood 1 can be mounted on a wall or other installation location via the frame 10. The smoke hood 1 has a mounting surface; for example, if the smoke hood 1 is mounted on a wall, the surface of the smoke hood 1 that abuts against the wall is the mounting surface of the smoke hood 1. The frame 10 is provided with an exhaust port (not shown), which can be connected to an external flue via a pipe. A volute (not shown) is also provided inside the frame 10, and a centrifugal impeller (not shown) is provided inside the volute. The volute can communicate with the interior of the smoke collection assembly 20, and the convection generated by the rotation of the centrifugal impeller can drive the gas inside the smoke collection assembly 20 to the exhaust port for discharge. The smoke collection assembly 20 is mounted on the frame 10, and the smoke collection assembly 20 can gather and collect the smoke, which is then discharged through the frame 10.

[0024] It should be noted that, for ease of description, this application uses a first direction (illustrated by X in the figures), a second direction (illustrated by Y in the figures), and a third direction (illustrated by Z in the figures) to exemplarily describe the relative positional relationships of the components. Specifically, the range hood 1 has a front side closer to the user and a rear side opposite to it in the first direction. In a kitchen setting, the front side faces the user, and the rear side faces the wall. The second direction is the arrangement direction of the frame 10 and the smoke collection assembly 20. The third direction is perpendicular to the first and second directions. In some embodiments, the first direction is a front-to-back direction, the second direction is a vertical direction, and the third direction is a left-to-right direction from the user's perspective. The first and second directions intersect. Optionally, the first, second, and third directions are perpendicular to each other.

[0025] In some embodiments, the smoke hood 1 includes a front plate 23 and a rear plate spaced apart in a first direction, and side plates spaced apart in a third direction. The smoke hood 1 also includes a base plate 21, with the front plate 23, rear plate, and side plates surrounding the circumference of the base plate 21, and a smoke collection port 211 formed on the base plate 21. In a second direction, the end of the base plate 21 near the front is further away from the frame 10 than the end of the base plate 21 near the rear. In other words, in the smoke hood 1 provided in this application, the base plate 21 is inverted with a lower front and a higher rear. By inverting the base plate 21 with a lower front and a higher rear, the pressure radiation direction of the smoke hood 1 can be optimized, the negative pressure area can be increased, and the smoke extraction effect can be improved. Optionally, the distance between the base plate 21 and the frame 10 gradually decreases in the direction from the front to the rear.

[0026] In some embodiments, the smoke collection assembly 20 further includes a front plate 23 connected to the front side of the top plate and the bottom plate 21 and a rear plate connected to the rear side of the top plate and the bottom plate 21, as well as two side plates (not labeled) disposed opposite to each other, the two side plates being connected to the front plate 23 and the rear plate respectively.

[0027] In some embodiments, the distance between the front side of the frame 10 and the front side of the front panel 23 in the first direction is less than or equal to 15 mm. In this way, the front side of the smoke collection assembly 20 protrudes less from the frame 10, making it easier to align the front side of the range hood 1 flush with the front side of the cabinet, or to directly embed the range hood 1 within the cabinet without exposing its front side to the user's view. Through these technical means, the range hood 1 can be installed concealed at all times, which is beneficial to the aesthetics of the kitchen.

[0028] In some embodiments, the distance between the front panel 23 and the rear panel is less than or equal to 370 mm and greater than or equal to 300 mm. In this way, the smoke collection assembly 20 can have a smaller size, so that when the smoke collection assembly 20 is fitted with the wall on the rear side, the front side protrudes less from the cabinet, which is beneficial for achieving a flush installation of the front side of the range hood 1 with the cabinet or a fully concealed installation.

[0029] Combination Figures 2 to 4This application provides a range hood 1. The range hood 1 also includes an air outlet device 24. The air outlet device 24 is installed on the front side of the smoke collection assembly 20 and has an air outlet 241. The air outlet 241 has at least a rearward component in its air outlet direction. The air outlet device 24 can guide the smoke generated during cooking to the rearward by air outlet, so that the smoke can be concentrated and discharged from the smoke collection port 211. The length direction of the air outlet 241 of the air outlet device 24 extends along a third direction, which is perpendicular to the first and second directions. By setting the length direction of the air outlet 241 to extend upward along a third direction, the air outlet of the air outlet device 24 can cover a larger area upward along the third direction, so that the smoke in a larger area below the range hood 1 can be affected by the air outlet of the air outlet device 24, thereby increasing the volume of smoke guided by the air outlet device 24 and improving the smoke extraction effect.

[0030] Specifically, the exhaust device 24 can interfere with the flow field by varying the exhaust direction and volume, thereby promoting the backward movement of smoke. In general, the exhaust device 24 can interfere with the flow direction of smoke in the following ways: 1. Jet guidance: When a high-speed air jet flows within the smoke collection chamber, it causes adjacent airflow to move along the jet direction due to shear force, thus achieving a guiding effect. Therefore, when the exhaust direction of the exhaust device 24 has a component towards the rear, it can guide the smoke to move backward. 2. Lateral guidance: When there is wall-attached airflow near the wall, it causes the smoke to deflect in that airflow direction, thereby optimizing the front-side smoke extraction effect.

[0031] In some embodiments, the range hood 1 has a central axial surface in its middle section, with a third direction perpendicular to the central axial surface. The central axial surface refers to a surface that bisects the left and right sides of the range hood 1 and is parallel to the first and second directions. The distance between the end of the air outlet 241 furthest from the central axial surface and the central axial surface is greater than or equal to 350 mm. In other words, the distance between the far end of the air outlet 241 relative to the central axial surface of the range hood 1 and the central axial surface is greater than or equal to 350 mm. For example, 400 mm, 450 mm, or 500 mm. If this distance is too small, the air outlet 241 will be too far from the sides of the range hood 1 in the third direction, causing the air outlet device 24 to be unable to effectively guide the smoke on both sides of the range hood 1. Furthermore, if this distance is too small, the position of the air outlet 241 will be biased towards the middle of the range hood 1, causing the air outlet device 24 to easily affect the smoke structure collected by the smoke collection port 211. On the other hand, if the distance between the end of the air outlet 241 near the central axis surface and the central axis surface is constant, too small a distance will also cause the air outlet area of ​​the air outlet 241 to decrease, affecting the air diversion effect.

[0032] Furthermore, the distance between the end of the air outlet 241 near the central axis surface and the central axis surface is greater than or equal to 100mm, for example, 150mm, 200mm, or 250mm. In other words, the distance between the end of the air outlet 241 near the central axis surface of the range hood 1 and the central axis surface is greater than or equal to 100mm. If this distance is too small, the air outlet 241 will be close to the middle of the range hood 1. Since the smoke collection port 211 is generally located in the middle of the range hood 1, the smoke collected by the range hood 1 needs to enter the smoke collection assembly 20 and the frame 10 through the smoke collection port 211. If this distance is too small, the air outlet 24 will conflict with the smoke collection port 211, causing the air outlet 24 to interfere with the normal smoke structure and affect the smoke extraction effect.

[0033] In some embodiments, the width of the air outlet 241 is greater than or equal to 2 mm and less than or equal to 5 mm, for example, 3 mm or 4 mm. If the width of the air outlet 241 is too large, it will result in insufficient guidance of the airflow, poor airflow directionality, and reduced controllability of the flue gas diversion effect of the air outlet device 24. Furthermore, if the width of the air outlet 241 is too large, the airflow pressure at the air outlet 241 will decrease when the fan airflow remains constant, which may prevent the air outlet device 24 from creating an effective air curtain for diverting flue gas. If the width of the air outlet 241 is too small, the area of ​​the air outlet 241 will be smaller, which may result in insufficient airflow from the air outlet device 24 and also prevent effective diversion of flue gas. Optionally, the width of the air outlet 241 can be measured by the length of its projection in the plane formed by the first and second directions.

[0034] In some embodiments, the range hood 1 includes a base plate 21 and a front plate 23 disposed on the front side of the base plate 21, with an air outlet device 24 disposed on the side of the front plate 23 away from the frame 10 in the second direction (i.e., below the front plate 23). Distributing the air outlet device 24 below the front plate 23 allows it to be positioned sufficiently close to the front and bottom of the range hood 1, thus enabling it to interfere with the flow of smoke as early as possible from the front and bottom, effectively improving its airflow guiding effect. Optionally, the front plate 23 includes a plate body and an oil cup disposed on the plate body, with the air outlet device 24 disposed on the side of the oil cup away from the frame 10 in the second direction (i.e., below the range hood 1).

[0035] It should be noted that the normal direction of the plane containing the air outlet 241 is not necessarily the same as the air outlet direction of the air outlet 241. In the embodiments of this application, the normal direction of the air outlet 241 may be non-horizontal, but the air outlet direction of the air outlet 241 may be horizontal towards the rear.

[0036] Combination Figure 5 and Figure 6 Based on the previous embodiment, specifically when the air outlet device 24 is located below the front panel 23, the air outlet device 24 has a first side panel 2401 and a second side panel 2402. The normal of the first side panel 2401 has a rearward component in a first direction and a component closer to the frame 10 in a second direction. The normal of the second side panel 2402 has a rearward component in the first direction and a component farther away from the frame 10 in the second direction. In other words, the first side panel 2401 extends obliquely to the rear in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). The second side panel 2402 extends obliquely to the front in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). In this embodiment, the air outlet 241 is located on the first side panel 2401. In this way, the air outlet 241 can be located on the upper side, effectively concealing the air outlet 241 and increasing the aesthetics of the range hood 1.

[0037] Combination Figure 2 and Figure 7 In other embodiments, the air outlet device 24 is disposed below the front panel 23. The air outlet device 24 has a second side plate 2402. The normal direction of the second side plate 2402 has a rearward component in a first direction and a component away from the frame 10 in a second direction. The second side plate 2402 extends obliquely forward in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). The side plate adjacent to the second side plate 2402 can be the aforementioned first side plate 2401, or it can be a side plate whose normal direction is toward the frame 10 in the second direction. Other sides of the air outlet device 24 are not specifically limited here. In this embodiment, the air outlet 241 is disposed on the second side plate 2402. By disposing of the air outlet 241 on the second side plate 2402, the second side plate 2402 can guide the rearward displacement of the smoke through its oblique structure, and can also guide the rearward displacement of the smoke through the air outlet of the air outlet device 24.

[0038] In some embodiments, in the first direction, the distance between the rear end of the air outlet 24 and the rear end face of the front plate 23 is less than or equal to 5 mm, for example, 4 mm, 3 mm, 2 mm, or 1 mm. In other words, the distance by which the rear end of the air outlet 24 intrudes below the smoke hood 1 or below the bottom plate 21 is less than or equal to 5 mm. If this distance is too large, it will cause the distance between the air outlet 24 and the smoke collection port 211 to be too close, which may easily cause the air outlet 24 to affect the flow field structure below the smoke hood 1. Through the method of this embodiment, the excessive interference of the air outlet 24 with the smoke extraction effect can be reduced.

[0039] Combination Figure 3 and Figure 4In some embodiments, the range hood 1 includes a base plate 21 and a front plate 23 disposed on the front side of the base plate 21, and an air outlet device 24 is disposed on the rear side of the front plate 23 in a first direction (i.e., the rear side of the front plate 23). By disposing the air outlet device 24 on the rear side of the front plate 23, the air outlet device 24 can be hidden on the rear side of the front plate 23, thereby reducing the total length of the front side of the range hood 1 in a second direction. Optionally, the front plate 23 includes a plate body and an oil cup disposed on the plate body, and the air outlet device 24 may be disposed on the rear side of the oil cup in the first direction.

[0040] Combination Figure 3 and Figure 5 Based on the previous embodiment, specifically when the air outlet device 24 is located behind the front panel 23, the air outlet device 24 has a first side panel 2401 and a second side panel 2402. The normal of the first side panel 2401 has a rearward component in a first direction and a component closer to the frame 10 in a second direction. The normal of the second side panel 2402 has a rearward component in the first direction and a component farther away from the frame 10 in the second direction. In other words, the first side panel 2401 extends obliquely to the rear in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). The second side panel 2402 extends obliquely to the front in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). In this embodiment, the air outlet 241 is located on the first side panel 2401. In this way, the air outlet 241 can be located on the upper side, effectively concealing the air outlet 241 and increasing the aesthetics of the range hood 1.

[0041] Combination Figure 4 and Figure 6 In other embodiments, the air outlet 24 is disposed on the rear side of the front panel 23. The air outlet 24 has a first side panel 2401 and a second side panel 2402. The normal of the first side panel 2401 has a rearward component in a first direction and a component closer to the frame 10 in a second direction. The normal of the second side panel 2402 has a rearward component in the first direction and a component farther away from the frame 10 in the second direction. In other words, the first side panel 2401 extends obliquely to the rear in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). The second side panel 2402 extends obliquely to the front in the direction from the frame 10 toward the smoke collection assembly 20 (from top to bottom). In this embodiment, the air outlet 241 is disposed on the second side panel 2402. By setting the air outlet 241 on the second side plate 2402, the second side plate 2402 can guide the flue gas to the rearward side through its inclined structure, and at the same time, it can also guide the flue gas to the rearward side through the air outlet 24.

[0042] In other embodiments, both the first side plate 2401 and the second side plate 2402 may be provided with air outlets 241. The air outlets 241 provided on the first side plate 2401 and the second side plate 2402 may be staggered along the second direction, so that their projection in the first direction can cover different positions.

[0043] 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. A range hood, characterized in that, The range hood has a front side and an opposite rear side in a first direction, including: frame; A smoke collection assembly is mounted on the frame, the frame and the smoke collection assembly are arranged in a second direction, the smoke collection assembly has a smoke collection port for drawing in smoke, and the first direction and the second direction intersect. An air outlet device is installed on the front side of the smoke collection assembly, and the air outlet device has an air outlet; The air outlet has an air outlet direction that has at least a component toward the rear side, and the length direction of the air outlet of the air outlet device extends along a third direction, which is perpendicular to the first direction and the second direction.

2. The range hood according to claim 1, characterized in that: The smoke hood has a central axis surface in the middle, the third direction is perpendicular to the central axis surface, the distance between the end of the air outlet away from the central axis surface and the central axis surface is greater than or equal to 350mm, and the distance between the end of the air outlet close to the central axis surface and the central axis surface is greater than or equal to 100mm.

3. The range hood according to claim 2, characterized in that: The width of the air outlet is greater than or equal to 2mm and less than or equal to 5mm.

4. The range hood according to claim 1, characterized in that: The range hood includes a base plate and a front plate disposed on the front side of the base plate, and the air outlet device is disposed on the side of the front plate away from the frame in the second direction.

5. The range hood according to claim 4, characterized in that: The air outlet device has a first side plate and a second side plate. The normal of the first side plate has a component toward the rear side in a first direction and a component close to the frame in the second direction. The normal of the second side plate has a component toward the rear in the first direction and a component away from the frame in the second direction, and the air outlet is disposed on the first side plate.

6. The range hood according to claim 4, characterized in that: The air outlet device has a second side plate, the normal of the second side plate having a component toward the rear in a first direction and a component away from the frame in a second direction, and the air outlet is disposed on the second side plate.

7. The range hood according to claim 4, characterized in that: In the first direction, the distance between the end of the air outlet device near the rear side and the end face of the front panel near the rear side is less than or equal to 5 mm.

8. The range hood according to claim 1, characterized in that: The range hood includes a base plate and a front plate disposed on the front side of the base plate, and the air outlet device is disposed on the rear side of the front plate in the first direction.

9. The range hood according to claim 8, characterized in that: The air outlet device has a first side plate and a second side plate. The normal of the first side plate has a component toward the rear side in a first direction and a component close to the frame in the second direction. The normal of the second side plate has a component toward the rear in the first direction and a component away from the frame in the second direction, and the air outlet is disposed on the first side plate.

10. The range hood according to claim 8, characterized in that: The air outlet device has a first side plate and a second side plate. The normal of the first side plate has a component toward the rear side in a first direction and a component close to the frame in the second direction. The normal of the second side panel has a component toward the rear in the first direction and a component away from the frame in the second direction, and the air outlet is disposed on the second side panel.

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