Range hood and kitchen system comprising same

Abstract

The utility model discloses a range hood and a kitchen system comprising the range hood. The range hood comprises an exhaust fume collecting hood, and the air inlet face, facing a stove, of the exhaust fume collecting hood is concaved inwards to form a concave cavity or a plurality of concave cavities formed in the length direction of the exhaust fume collecting hood at intervals; each concave cavity comprises a main air inlet area and at least one auxiliary air inlet area which are arranged in the concave cavity, the suction force of the main air inlet area is larger than that of each auxiliary air inlet area, and the main air inlet area and the at least one auxiliary air inlet area are arranged in a surrounding mode; the smoke suction range of the auxiliary air inlet area in the surrounding arrangement direction is larger than the smoke suction range of the main air inlet area in the surrounding arrangement direction. When the oil smoke amount is large, the oil smoke in the concave cavity cannot be captured from the main air inlet area immediately and completely, so that the redundant oil smoke can be diffused all around, and the diffused and escaped oil smoke is captured by the auxiliary air inlet area, so that the oil smoke cannot break through the auxiliary air inlet area to escape, and the oil smoke capturing capacity is improved.

Description

Technical Field

[0001] The utility model discloses a range hood and a kitchen system comprising the range hood. Background Art

[0002] Range hoods are usually installed above stoves. They can quickly extract and discharge the waste burned by the stove and the fumes harmful to the human body generated during the cooking process to the outside of the room, playing an important role in maintaining the kitchen environment and human health.

[0003] Existing range hoods have a weak ability to pull in oil fumes, resulting in poor oil fume capture. This is especially true when the amount of oil fume is large or the rate of oil fume diffusion is high. The pulling force of the airflow from the inlet on the oil fume cannot overcome the energy of the oil fume diffusion, causing oil fume to escape. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the defect of poor oil smoke collection capability of the range hood in the prior art, and to provide a range hood and a kitchen system including the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model discloses a range hood, which comprises a fume collecting hood, wherein the air inlet surface of the fume collecting hood facing the cooker is inwardly recessed to form a cavity or a plurality of cavities spaced apart along the length direction of the fume collecting hood;

[0007] Each of the concave cavities includes a main air inlet area and at least one auxiliary air inlet area disposed therein, the suction force of the main air inlet area being greater than the suction force of each of the auxiliary air inlet areas, wherein:

[0008] One of the main air inlet areas and at least one of the auxiliary air inlet areas are arranged in a surrounding manner;

[0009] The smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement.

[0010] In this embodiment, the suction force of the main air inlet area is greater than that of each auxiliary air inlet area, resulting in the main air inlet area's ability to pull in oil fumes being greater than that of each auxiliary air inlet area. Consequently, the main air inlet area's ability to capture oil fumes is greater than that of the auxiliary air inlet areas. With this structure, when cooking fumes reach the concave cavity, because the suction force of the main air inlet area is greater than that of each auxiliary air inlet area, the fumes are first drawn into the hood through the main air inlet area. When the amount of oil fumes is large, the oil fumes within the concave cavity cannot be immediately and completely captured by the main air inlet area, causing the excess oil fumes to diffuse in all directions. Any escaping oil fumes are then captured by the auxiliary air inlet areas, ensuring that the oil fumes cannot escape through the auxiliary air inlet areas. This improves the range hood's ability to capture oil fumes, allowing the main and auxiliary air inlet areas to fully surround the oil fumes, preventing them from escaping and enhancing the user experience. In addition, the above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing air flow forms a natural wind curtain, which is equivalent to setting up an invisible structure near the main air inlet area, thereby preventing the escape of oil smoke near the main air inlet area.

[0011] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, while the oil smoke not captured by the main air inlet is diffused to the surrounding area along the top wall of the cavity, and the escaping oil smoke is captured by the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's oil smoke capture capacity through graded adsorption.

[0012] Preferably, the main air inlet area and the auxiliary air inlet area in each of the concave cavities are arranged in the same manner.

[0013] In this solution, the above-mentioned structural form is adopted so that each cavity has the same ability to capture oil smoke.

[0014] Preferably, the orientations of the main air inlet areas in the respective concave cavities are consistent;

[0015] And / or, the main air inlet areas in the respective concave cavities have the same extension distance in the direction of the circumferential arrangement.

[0016] In this solution, the above-mentioned structural form is adopted, and the directions of the main air inlet areas in each concave cavity are consistent, so that the adsorption directions of the oil fumes by the main air inlet areas in each concave cavity are consistent; the extension distances of the main air inlet areas in each concave cavity in the direction of the surrounding arrangement are consistent, so that the adsorption capacity of the main air inlet areas is consistent, thereby making the air curtains formed by the main air inlet areas in each concave cavity consistent in size in the length direction of the range hood.

[0017] Preferably, the main air inlet area and at least one auxiliary air inlet area of ​​each of the adjacent concave cavities form a surrounding arrangement.

[0018] In this solution, the above-mentioned structural form is adopted to increase the adsorption range of the range hood, thereby preventing the escape of oil smoke and improving the operator's experience.

[0019] Preferably, the surrounding arrangement shape formed by one of the main air inlet areas and at least one of the auxiliary air inlet areas is a rectangle, a circle, or a combination of a rectangle and a circle;

[0020] And / or, the main air inlet area and the auxiliary air inlet area extend along a straight line, a curve, or a combination of a straight line and a curve.

[0021] In this solution, the above-mentioned structural form is adopted to increase the types of arrangement shapes formed by the main air inlet area and the auxiliary air inlet area.

[0022] Preferably, the number of the secondary air inlet areas is three.

[0023] Preferably, the main air inlet area includes one or more main air inlets;

[0024] And / or, the secondary air inlet area includes one or more secondary air inlets.

[0025] In this solution, the above-mentioned structural form is adopted to achieve the adsorption of most of the oil smoke through one or more main air inlets; and to capture the escaping oil smoke through one or more auxiliary air inlets, thereby improving the oil smoke adsorption capacity of the range hood.

[0026] Preferably, the main air inlet extends along the extension direction of the main air inlet area;

[0027] And / or, the secondary air inlet extends along an extension direction of the secondary air inlet area.

[0028] In this solution, the above-mentioned structural form is adopted, and the main air inlet is extended along the extension direction of the main air inlet area, thereby improving the adsorption capacity of the main air inlet area for oil smoke, thereby increasing the size of the air curtain in the length direction of the smoke collection hood; the auxiliary air inlet is extended along the extension direction of the auxiliary air inlet area, thereby improving the auxiliary air inlet's ability to capture oil smoke escaping to the surroundings.

[0029] Preferably, in the extension direction of the main air inlet area, there are multiple main air inlets;

[0030] And / or, in the extension direction of the secondary air inlet area, there are multiple secondary air inlets.

[0031] In this solution, the above-mentioned structural form is adopted to improve the adsorption capacity of the main air inlet area for oil smoke, thereby increasing the size of the air curtain in the length direction of the smoke collection hood; and improving the capture capacity of the secondary air inlet for oil smoke escaping to the surroundings.

[0032] Preferably, the area of ​​the main air inlet of the main air inlet region is larger than the area of ​​the secondary air inlet of each of the secondary air inlet regions.

[0033] In this solution, the above-mentioned structural form is adopted, and the suction force of the main air inlet area is greater than the suction force of each auxiliary air inlet area, so that the traction capacity of the main air inlet area for oil smoke is greater than the traction capacity of each auxiliary air inlet area, and further the capture capacity of the main air inlet area for oil smoke is greater than the capture capacity of each auxiliary air inlet area for oil smoke.

[0034] Preferably, the dimension of the main air inlet along the width direction of the smoke hood is not less than 30 mm and not more than 80 mm.

[0035] In this solution, the above-mentioned structural form is adopted to improve the main air inlet's ability to pull in oil smoke, thereby improving the main air inlet's ability to capture oil smoke.

[0036] Preferably, the auxiliary air inlet includes an auxiliary air inlet and a secondary air inlet, the auxiliary air inlet is farther away from the main air inlet area than the secondary air inlet, and the air inlet area of ​​the secondary air inlet is larger than the air inlet area of ​​the auxiliary air inlet.

[0037] In this solution, the above-mentioned structural form is adopted, and the oil smoke that is not absorbed by the main air inlet area will first escape in the direction of the secondary air inlet setting position, so that most of the escaped oil smoke is captured by the secondary air inlet. Thereafter, the oil smoke that is not captured by the secondary air inlet will escape in the direction of the auxiliary air inlet setting position, so that the remaining oil smoke will be captured by the auxiliary air inlet, and then all the oil smoke will be captured by the range hood, thereby improving the range hood's ability to capture oil smoke.

[0038] Preferably, the smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement, which includes:

[0039] The extension distance of the auxiliary air inlet area in the direction of the surrounding arrangement is greater than the extension distance of the main air inlet area in the direction of the surrounding arrangement;

[0040] And / or, the coverage angle of the secondary air inlet area in the direction of the surrounding arrangement is greater than the coverage angle of the primary air inlet area in the direction of the surrounding arrangement.

[0041] Preferably, the main air inlet area is opened on the side wall or top wall of the cavity, and at least part of the auxiliary air inlet area is opened on the side wall.

[0042] In this solution, the aforementioned structure achieves a surrounding arrangement between the primary and secondary air inlet areas. Furthermore, oil fumes not captured by the primary air inlet area can escape by adhering to the top wall of the cavity. Since the secondary air inlet area is located on the side wall, the direction of oil fume absorption in the secondary air inlet area is not perpendicular to the direction of oil fume escape, allowing the escaping oil fume to be captured by the secondary air inlet area, thereby improving the range hood's ability to capture escaping oil fumes.

[0043] Preferably, the main air inlet area is opened on the top wall of the cavity.

[0044] In this plan, it is convenient to open the main air inlet area.

[0045] Preferably, the main air inlet area is closer to the front end of the smoke collection hood than the auxiliary air inlet area;

[0046] And / or, the projection of the main air inlet area is within the range of the cooking area of ​​the cooker.

[0047] In this solution, the above-mentioned structural form is adopted to form an air curtain in the area relatively in front of the smoke hood, thereby preventing the diffusion of oil smoke. While ensuring the oil smoke extraction effect, the front and rear depth of the range hood can be made smaller than that of existing models.

[0048] Preferably, for the plurality of concave cavities, an auxiliary air inlet area is provided between two adjacent concave cavities.

[0049] In this solution, the above-mentioned structural form is adopted to further improve the range hood's ability to capture oil smoke.

[0050] Preferably, the main air inlet area is opened in the front middle area of ​​the air inlet surface;

[0051] The distance between the main air inlet area and the front end of the smoke collecting hood is not less than 50 mm and not more than 200 mm.

[0052] In this solution, the above-mentioned structural form is adopted, and the main air inlet area is close enough to the front end of the range hood, so that the wind speed in the main air inlet area and the front end of the range hood is large enough to form a natural wind curtain, which is equivalent to setting up an invisible structure to block the diffusion of oil smoke. On the premise of ensuring the oil smoke extraction effect, the front and rear depth of the range hood can be made smaller than that of existing models.

[0053] Preferably, the side walls of the cavity extend obliquely outward from the top wall of the cavity.

[0054] In this solution, the above-mentioned structural form is adopted to facilitate the collection of oil smoke by the cavity.

[0055] The utility model also discloses a kitchen system, which includes the range hood as described in any one of the above items.

[0056] In this embodiment, the suction force of the main air inlet area is greater than that of each auxiliary air inlet area, resulting in the main air inlet area's ability to pull in oil fumes being greater than that of each auxiliary air inlet area. Consequently, the main air inlet area's ability to capture oil fumes is greater than that of the auxiliary air inlet areas. With this structure, when cooking fumes reach the concave cavity, because the suction force of the main air inlet area is greater than that of each auxiliary air inlet area, the fumes are first drawn into the hood through the main air inlet area. When the amount of oil fumes is large, the oil fumes within the concave cavity cannot be immediately and completely captured by the main air inlet area, causing the excess oil fumes to diffuse in all directions. Any escaping oil fumes are then captured by the auxiliary air inlet areas, ensuring that the oil fumes cannot escape through the auxiliary air inlet areas. This improves the range hood's ability to capture oil fumes, allowing the main and auxiliary air inlet areas to fully surround the oil fumes, preventing them from escaping and enhancing the user experience. In addition, the above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing air flow forms a natural wind curtain, which is equivalent to setting up an invisible structure near the main air inlet area, thereby preventing the escape of oil smoke near the main air inlet area.

[0057] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, while the oil smoke not captured by the main air inlet is diffused to the surrounding area along the top wall of the cavity, and the escaping oil smoke is captured by the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's oil smoke capture capacity through graded adsorption.

[0058] Preferably, the kitchen system includes a stove, and the projection of the main air inlet area is within the range of the cooking area of ​​the stove.

[0059] In this solution, the above-mentioned structural form is adopted to facilitate the adsorption of oil smoke in the main air inlet area.

[0060] The positive progress effect of this utility model is:

[0061] The suction force of the main air inlet area is greater than that of each auxiliary air inlet area, resulting in the main air inlet area's ability to pull in oil fumes being greater than that of each auxiliary air inlet area. Consequently, the main air inlet area's ability to capture oil fumes is greater than that of each auxiliary air inlet area. With this structure, when cooking fumes reach the concave cavity, the suction force of the main air inlet area is greater than that of each auxiliary air inlet area. Therefore, the fumes are first drawn into the hood through the main air inlet area, where they are drawn into the hood. When the amount of oil fumes is large, the oil fumes within the concave cavity cannot be immediately and completely captured by the main air inlet area. Excess oil fumes diffuse in all directions, and any escaping oil fumes are captured by the auxiliary air inlet areas. This prevents the oil fumes from escaping beyond the auxiliary air inlet areas, thereby improving the range hood's ability to capture oil fumes. The main and auxiliary air inlet areas fully enclose the oil fumes, preventing them from escaping and enhancing the user experience. In addition, the above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing air flow forms a natural wind curtain, which is equivalent to setting up an invisible structure near the main air inlet area, thereby preventing the escape of oil smoke near the main air inlet area.

[0062] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, while the oil smoke not captured by the main air inlet is diffused to the surrounding area along the top wall of the cavity, and the escaping oil smoke is captured by the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's oil smoke capture capacity through graded adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 This is a structural schematic diagram of a range hood according to an embodiment of the present invention (1).

[0064] Figure 2 This is a structural schematic diagram (2) of the range hood according to an embodiment of the present invention.

[0065] Figure 3 This is a structural schematic diagram of the range hood according to an embodiment of the present invention (3).

[0066] Figure 4 This is a structural schematic diagram (four) of the range hood according to an embodiment of the present invention.

[0067] Figure 5 This is a structural schematic diagram of the range hood according to an embodiment of the present invention (V).

[0068] Figure 6 This is a structural schematic diagram (six) of the range hood according to an embodiment of the present invention.

[0069] Figure 7 This is a structural diagram of a kitchen system according to an embodiment of the present invention.

[0070] Description of reference numerals:

[0071] Kitchen System 100

[0072] Range hood 1

[0073] Fume hood 11

[0074] Air inlet surface 12

[0075] Cavity 13

[0076] Side wall 131

[0077] Top wall 132

[0078] Main air intake area 14

[0079] Main air inlet 141

[0080] Auxiliary air intake area 15

[0081] Auxiliary air inlet 151

[0082] Secondary air inlet 1511

[0083] Auxiliary air inlet 1512

[0084] Oil box 16

[0085] Cooker 2

[0086] Length direction L of the smoke hood

[0087] The width direction W of the smoke hood DETAILED DESCRIPTION

[0088] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0089] like Figures 1 to 6As shown, this embodiment provides a range hood 1, which includes a smoke hood 11, and the air inlet surface 12 of the smoke hood 11 facing the stove 2 is recessed inward to form a cavity 13 or a plurality of cavities 13 spaced apart along the length direction of the smoke hood 11; each cavity 13 includes a main air inlet area 14 and at least one auxiliary air inlet area 15 arranged therein, and the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, wherein a main air inlet area 14 and at least one auxiliary air inlet area 15 form a surrounding arrangement; the smoking range of the auxiliary air inlet area 15 in the direction of the surrounding arrangement is greater than the smoking range of the main air inlet area 14 in the direction of the surrounding arrangement. Specifically, the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, resulting in the main air inlet area 14 having a greater ability to pull in oil smoke than the auxiliary air inlet areas 15. Consequently, the main air inlet area 14 has a greater ability to capture oil smoke than the auxiliary air inlet areas 15. With this structure, when cooking fumes reach the concave cavity 13, the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, so the fumes are first drawn into the fume hood 11 by the main air inlet area 14. When the amount of oil smoke is large, the oil smoke in the concave cavity 13 cannot be immediately and completely captured from the main air inlet area 14, causing the excess oil smoke to spread to the surroundings, and the diffused and escaping oil smoke is captured by the secondary air inlet area 15, thereby ensuring that the oil smoke cannot break through the secondary air inlet area 15 to escape, thereby improving the oil smoke capture capability of the range hood 1, so that the main air inlet area 14 and the secondary air inlet area 15 can fully surround the oil smoke to prevent the oil smoke from escaping, thereby improving the user experience of the operator. In addition, the above-mentioned form can make the air flow speed near the main air inlet area 14 large enough through the main air inlet area 14, so that the continuously flowing air flow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area 14, thereby preventing the oil smoke near the main air inlet area 14 from escaping.

[0090] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area 14. The oil smoke not captured by the main air inlet 141 is diffused to the surrounding area along the top wall 132 of the cavity 13, and the escaping oil smoke is captured by the secondary air inlet area 15. In other words, the range hood 1 of the present application achieves graded adsorption by virtue of the different suction forces of the main air inlet area 14 and the secondary air inlet area 15, thereby improving the range hood 1's ability to capture oil smoke.

[0091] In actual use, the suction force of the main air inlet area 14 and the suction force of the auxiliary air inlet area 15 are related to factors such as the power of the fan and the size of the air inlet of the air inlet area. In this embodiment, the main air inlet area 14 and the auxiliary air inlet area 15 are adsorbed by the same fan. Therefore, when the air inlet of the main air inlet area 14 is larger than the air inlet of the auxiliary air inlet area 15, the main air inlet area 14 has a greater ability to adsorb oil smoke than the auxiliary air inlet area 15.

[0092] Furthermore, the aforementioned arrangement of one primary air intake area 14 and at least one secondary air intake area 15 forming a circle can be interpreted as follows: when there is only one secondary air intake area 15, the secondary air intake area 15 circumferentially surrounds one end of the primary air intake area 14 and reaches the other end of the primary air intake area 14. In other words, the smoking area of ​​the secondary air intake area 15 is continuous and uninterrupted; when there are multiple air intake areas, the smoking area of ​​the secondary air intake area 15 is discontinuous, and the number of air intake areas is the same as the number of smoking areas of the secondary air intake areas 15.

[0093] In this embodiment, the primary air inlet regions 14 and the secondary air inlet regions 15 within each cavity 13 are arranged uniformly, thereby ensuring that each cavity 13 has the same oil fume capture capacity. In other embodiments, the primary air inlet regions 14 and the secondary air inlet regions 15 within each cavity 13 may be arranged differently, and the arrangement of the primary air inlet regions 14 and the secondary air inlet regions 15 within each cavity 13 may be adjusted based on actual needs. The specific arrangement is not limited here.

[0094] It should be noted that the above-mentioned smoking range of the auxiliary air inlet area 15 in the direction of the surrounding arrangement is greater than the smoking range of the main air inlet area 14 in the direction of the surrounding arrangement, including: the extension distance of the auxiliary air inlet area 15 in the direction of the surrounding arrangement is greater than the extension distance of the main air inlet area 14 in the direction of the surrounding arrangement; and / or, the coverage angle of the auxiliary air inlet area 15 in the direction of the surrounding arrangement is greater than the coverage angle of the main air inlet area 14 in the direction of the surrounding arrangement.

[0095] In addition, for a multi-burner cooker 2, the concave cavity 13 can be set in a one-to-one correspondence with each burner. Of course, in other embodiments, the arrangement and number of the concave cavity 13 can also be adjusted according to actual needs, and are not limited here.

[0096] In this embodiment, the orientation of the main air inlet areas 14 within each cavity 13 is consistent, so that the main air inlet areas 14 within each cavity 13 adsorb oil smoke in the same direction. In other embodiments, the orientation of the main air inlet areas 14 within each cavity 13 may also be different, and the orientation of the main air inlet areas 14 within each cavity 13 can be adjusted according to actual needs. In addition, the consistent orientation of the main air inlet areas 14 mentioned above refers to the different orientations of the openings of the main air inlet areas 14.

[0097] In addition, for the main air inlet area 14 in each cavity 13, the extension distance in the direction of the circumferential arrangement is consistent, so that the adsorption capacity of the main air inlet area 14 is consistent, and thus the air curtain formed by the main air inlet area 14 in each cavity 13 has the same size in the length direction of the range hood 1.

[0098] The main air inlet area 14 and at least one auxiliary air inlet area 15 of each adjacent cavity 13 are arranged in a surrounding manner. The above structure increases the suction range of the range hood 1, thereby preventing the escape of oil smoke and improving the operator's experience.

[0099] In specific use, the surrounding arrangement shape formed by a main air inlet area 14 and at least one auxiliary air inlet area 15 is rectangular, circular, or a combination of rectangular and circular shapes, which increases the types of arrangement shapes formed by the main air inlet area 14 and the auxiliary air inlet area 15.

[0100] The main air inlet area 14 and the auxiliary air inlet area 15 extend along a straight line, a curve, or a combination of a straight line and a curve.

[0101] In this embodiment, if Figure 1 As shown, there are three auxiliary air inlet areas 15. In other embodiments, the number of auxiliary air inlet areas 15 can be adjusted according to actual needs and is not limited here.

[0102] like Figure 2 As shown, in order to further improve the adsorption capacity of oil smoke, a secondary air inlet area 15 can also be opened on the side wall 131 close to the main air inlet area 14.

[0103] The main air inlet area 14 includes one or more main air inlets 141, so that most of the oil smoke is adsorbed through the one or more main air inlets 141; Figure 1 and Figure 2 As shown, this embodiment takes two main air inlets 141 as an example for adaptive expression. In other embodiments, the number of main air inlets 141 can be adjusted according to actual needs and is not limited here.

[0104] like Figures 1 to 6 As shown, the auxiliary air inlet area 15 includes one or more auxiliary air inlets 151, so that the escaped oil smoke is captured through the one or more auxiliary air inlets 151, thereby improving the oil smoke adsorption capacity of the range hood 1.

[0105] The main air inlet 141 and the auxiliary air inlet 151 can be arranged in the following manner: in the first embodiment, the main air inlet 141 extends along the extension direction of the main air inlet area 14; in the second embodiment, the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15; in the third embodiment, the main air inlet 141 extends along the extension direction of the main air inlet area 14, and the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15. Preferably, the main air inlet 141 extends along the extension direction of the main air inlet area 14, and the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15, thereby improving the oil fume adsorption capacity of the main air inlet area 14 and the auxiliary air inlet area 15.

[0106] Furthermore, multiple main air inlets 141 are provided along the extension of the main air inlet area 14, and multiple auxiliary air inlets 151 are provided along the extension of the auxiliary air inlet area 15. This structural arrangement improves the main air inlet area 14's ability to absorb oil smoke, thereby increasing the length of the air curtain along the length of the range hood 1. Furthermore, this arrangement also enhances the ability of the auxiliary air inlets 151 to capture oil smoke that escapes in the surrounding areas.

[0107] like Figure 1 and Figure 2 As shown, the area of ​​the main air inlet 141 of the main air inlet area 14 is larger than the area of ​​the secondary air inlet 151 of each secondary air inlet area 15. With this structure, the suction force of the main air inlet area 14 is greater than the suction force of each secondary air inlet area 15, thereby making the main air inlet area 14 have a greater ability to pull oil smoke than each secondary air inlet area 15, and further making the main air inlet area 14 have a greater ability to capture oil smoke than the secondary air inlet areas 15.

[0108] The main air inlet 141 has a width dimension of not less than 30 mm and not more than 80 mm along the width direction of the smoke collecting hood 11. The above structure improves the main air inlet 141's ability to draw in oil smoke, thereby improving the main air inlet 141's ability to capture oil smoke.

[0109] It should be noted that when the dimension of the main air inlet 141 along the width direction of the smoke collecting hood 11 is 30 mm, the adsorption capacity of the main air inlet 141 can also be greater than the minimum diameter of the adsorption capacity of the auxiliary air inlet 151 .

[0110] When the dimension of the main air inlet 141 along the width direction of the smoke collecting hood 11 is 55 mm, and the diameter of the main air inlet 141 is appropriate, the adsorption capacity of the main air inlet 141 is guaranteed to be greater than that of the auxiliary air inlet 151.

[0111] When the dimension of the main air inlet 141 along the width direction of the smoke hood 11 is 80 mm, the main air inlet 141 can have a greater adsorption capacity, so that the main air inlet 141 has a greater ability to capture oil smoke, and the dimension of the main air inlet 141 along the width direction of the smoke hood 11 will be limited by the space of the cavity 13.

[0112] like Figures 1 to 6 As shown, the auxiliary air inlet 151 includes an auxiliary air inlet 1512 and a secondary air inlet 1511. The auxiliary air inlet 1512 is farther away from the main air inlet area 14 than the secondary air inlet 1511, and the air inlet area of ​​the secondary air inlet 1511 is larger than that of the auxiliary air inlet 1512. With the above-mentioned structure, oil smoke not absorbed by the main air inlet area 14 first escapes in the direction of the location of the secondary air inlet 1511, so that most of the escaped oil smoke is captured by the secondary air inlet 1511. Then, the oil smoke not captured by the secondary air inlet 1511 escapes in the direction of the location of the auxiliary air inlet 1512, so that the remaining oil smoke is captured by the auxiliary air inlet 1512. As a result, all the oil smoke is captured by the range hood 1, thereby improving the oil smoke capture capability of the range hood 1.

[0113] Specifically, in this embodiment, the fume hood 11 of the range hood 1 is tilted, with the front higher and the back lower. The range hood 1 defines a shallow concave cavity 13. A wide opening, serving as the main air inlet 141, is located in front of the top wall 132 of the concave cavity 13. Two smaller openings, serving as secondary air inlets 1511, are located on either side of the concave cavity 13. An even smaller opening, serving as an auxiliary air inlet 1512, is located behind the concave cavity 13. The main air inlet 141 is located directly above the cooker 2. When oil smoke enters the concave cavity 13 of the range hood 1, the airflow through the main air inlet 141 aligns with the direction of the smoke's movement, allowing the smoke to flow smoothly into the range hood 1. However, when the amount of oil smoke is high, the smoke entering the concave cavity cannot be completely captured immediately by the main air inlet 141, and the excess oil smoke will disperse. The airflow around the range hood 1 reveals that the airflow at the front of the range hood 1 flows from outside to inside, with the airflow velocity at the front of the fume hood 11 reaching over 0.8 m / s, far exceeding the 0.5 m / s of conventional range hoods 1. This creates a wide-area air curtain, preventing the airflow from escaping the front of the range hood 1. The remaining oil smoke diffuses to the left and right along the top wall 132 of the fume hood 11. Since the secondary air inlet 1511 is oriented in the same direction as the fume diffusion, it also helps capture the oil smoke that diffuses to the sides, making it difficult for the oil smoke to escape. The direction of the oil smoke that diffuses to the rear aligns with the direction of the auxiliary air inlet 1512, ensuring that the oil smoke cannot escape through the auxiliary air inlet 1512. The primary, secondary, and auxiliary air inlets are located around the concave cavity 13, effectively surrounding it and preventing the oil smoke from escaping through the air inlet. Therefore, this structure effectively encloses the oil smoke and effectively prevents it from escaping. When the direction of the airflow is 0° or 180° to the direction of movement of the oil smoke, the force direction of the oil smoke is either forward along the direction of movement of the airflow or backward along the direction of movement of the airflow. When it moves backward along the direction of movement, the speed of the oil smoke will gradually decrease to be consistent with the airflow speed, and finally the force direction of the oil smoke will be changed to be consistent with the direction of movement of the airflow. During the whole process, the oil smoke will not be affected by lateral forces, so it is difficult to escape. At the same time, the force direction of the oil smoke is consistent with its movement direction, so that the oil smoke is continuously accelerated in the direction of movement, which is conducive to improving the capture efficiency of the oil smoke. At the same time, the oil smoke in the smoke hood 11 is captured in time, which is conducive to the oil smoke under the range hood 1 to smoothly enter the smoke hood 11, thereby promoting the improvement of the oil smoke capture rate and efficiency.

[0114] In this embodiment, the secondary air inlet 1511 is located on the left and right side walls 131 of the concave cavity 13, and its width is not less than 10 mm and not more than 30 mm. Specifically, the larger the air inlet area of ​​the secondary air inlet 1511, the stronger the adsorption capacity. When the size of the secondary air inlet 1511 along the length direction of the smoke hood 11 is 10 mm, while ensuring that the adsorption force of the secondary air inlet 1511 meets the requirements, the diameter of the secondary air inlet 1511 is made smaller, which facilitates the opening of the secondary air inlet 1511 on the side wall 131 of the concave cavity 13; when the size of the secondary air inlet 1511 along the length direction of the smoke hood 11 is 20 mm, both the adsorption capacity and the diameter of the secondary air inlet 1511 meet the requirements. When the dimension of the secondary air inlet 1511 along the length direction of the smoke collecting hood 11 is 30 mm, the adsorption force of the secondary air inlet 1511 is guaranteed while the secondary air inlet 1511 is conveniently opened on the side wall 131 of the concave cavity 13 .

[0115] The auxiliary air inlet 1512 is located on the rear side wall 131 of the concave cavity 13, and its width is not less than 6 mm and not more than 20 mm. Specifically, the larger the air inlet area of ​​the auxiliary air inlet 1512, the stronger the adsorption capacity. When the size of the auxiliary air inlet 1512 along the width direction of the smoke hood 11 is 6 mm, while ensuring that the adsorption force of the auxiliary air inlet 1512 meets the requirements, the diameter of the auxiliary air inlet 1512 is made smaller, which facilitates the opening of the auxiliary air inlet 1512 on the side wall 131 of the concave cavity 13; when the size of the auxiliary air inlet 1512 along the width direction of the smoke hood 11 is 13 mm, both the adsorption capacity and the diameter of the auxiliary air inlet 1512 can meet the requirements. When the dimension of the auxiliary air inlet 1512 along the width direction of the smoke collecting hood 11 is 20 mm, the adsorption force of the auxiliary air inlet 1512 is guaranteed while the auxiliary air inlet 1512 is provided on the side wall 131 of the concave cavity 13 .

[0116] like Figures 1 to 6 As shown, the main air inlet area 14 is provided on the side wall 131 or the top wall 132 of the cavity 13, and at least part of the auxiliary air inlet area 15 is provided on the side wall 131. By adopting the above-mentioned structural form, a surrounding arrangement is achieved between the main air inlet area 14 and the auxiliary air inlet area 15. In addition, the oil smoke that is not captured by the main air inlet area 14 can escape by adhering to the top wall 132 of the cavity 13. Since the auxiliary air inlet area 15 is provided on the side wall 131, the direction of oil smoke adsorption by the auxiliary air inlet area 15 is not perpendicular to the direction of oil smoke escape, so that the escaped oil smoke can be captured by the auxiliary air inlet area 15, thereby improving the capture ability of the range hood 1 for escaping oil smoke.

[0117] Since the depth of the cavity 13 is relatively small, in this embodiment, the main air inlet area 14 is opened on the top wall 132 of the cavity 13 , which facilitates the opening of the main air inlet area 14 .

[0118] The main air inlet area 14 is closer to the front end of the smoke hood 11 than the auxiliary air inlet area 15, so that an air curtain can be formed in the area relatively in front of the smoke hood 11, thereby preventing the diffusion of oil smoke. On the premise of ensuring the oil smoke extraction effect, the front and rear depth of the range hood 1 can be made smaller than that of existing models.

[0119] In this embodiment, the projection of the main air inlet area 14 is within the range of the cooking area of ​​the cooker 2 , which facilitates the main air inlet area 14 to absorb oil smoke.

[0120] For the plurality of concave cavities 13, an auxiliary air inlet area 15 is provided between two adjacent concave cavities 13. The above-mentioned structural form further improves the oil smoke collection capability of the range hood 1.

[0121] During actual use, the top wall 132 of the cavity 13 is parallel to the lower end surface of the range hood 1, and the distance between the two is d1. The sum of d1 and the distance d2 between the top wall 132 of the cavity 13 and the support plate is a fixed value. In actual effect, the larger the d1 and d2, the better. However, due to the limitation of the total, 20mm≤d1≤40mm is taken; the angle α between the inclined surface and the horizontal plane is greater than 10°, which is conducive to the small oil droplets adhered to the surface of the smoke hood 11 to gather into large oil droplets and flow into the oil collection box 16 along the inclined surface of the smoke hood 11.

[0122] The smaller d1 is, the narrower the sidewall 131 of the cavity 13 becomes, making it more difficult to define the auxiliary air inlet area 15 on the sidewall 131. When d1 is 20 mm, while ensuring that the auxiliary air inlet area 15 can be properly defined on the sidewall 131 of the cavity 13 and that the auxiliary air inlet area 15 can properly absorb oil smoke, the depth of the cavity 13 is reduced, preventing the top wall 132 of the cavity 13 from colliding with the support plate during operation of the range hood 1.

[0123] When d1 is 30 mm, it is convenient to open the secondary air inlet area 15 on the side wall 131 of the cavity 13, and the above structure also ensures that the top wall 132 of the cavity 13 will not collide with the support plate.

[0124] The larger d1 is and the smaller d2 is, the more likely the top wall 132 of the cavity 13 will collide with the support plate. When d1 is 40 mm, the top wall 132 of the cavity 13 will not collide with the support plate, which is beneficial for providing the secondary air inlet area 15 on the side wall 131 of the cavity 13.

[0125] The main air inlet area 14 is located in the front middle area of ​​the air inlet surface 12; the distance between the main air inlet area 14 and the front end of the smoke hood 11 is not less than 50 mm and not more than 200 mm. Specifically, when the distance between the main air inlet area 14 and the front end of the smoke hood 11 is 50 mm, the main air inlet area 14 is close enough to the front end of the range hood 1, so that the wind speed in the main air inlet area 14 and the front end of the range hood 1 is large enough to form a series of natural wind curtains, which is equivalent to setting up an invisible structure to block the diffusion of oil smoke. Under the premise of ensuring the oil smoke extraction effect, the front and rear depth of the range hood 1 can be made smaller than that of existing models. When the distance between the main air inlet area 14 and the front end of the smoke hood 11 is 125 mm, the wind curtain formed by the main air inlet area 14 is located at the front end of the stove 2, thereby effectively preventing oil smoke from escaping from the front end of the smoke hood 11, ensuring that the range hood 1 has a sufficiently good oil smoke extraction effect. Due to the limited space in the cavity 13, if the distance between the main air inlet area 14 and the front end of the fume hood 11 is too long, it will be difficult to open the auxiliary air inlet area 15, and thus it will be difficult for the auxiliary air inlet area 15 to absorb the escaping oil smoke. Therefore, when the distance between the main air inlet area 14 and the front end of the fume hood 11 is 200mm, it is guaranteed that the suction force of the auxiliary air inlet area 15 can still meet the preset requirements.

[0126] The sidewalls 131 of the cavity 13 extend outwardly from the top wall 132 of the cavity 13 at an angle. The cavity 13 is symmetrical about the central plane of the range hood 1 and has a frustum-shaped structure that is smaller at the top and larger at the bottom, with an angle of less than 45°. This structure facilitates the collection of oil fumes by the cavity 13.

[0127] like Figure 7As shown, this embodiment also provides a kitchen system including a range hood 1. Specifically, the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, resulting in the main air inlet area 14 having a greater ability to pull oil fumes than each auxiliary air inlet area 15, thereby increasing the main air inlet area 14's ability to capture oil fumes and the auxiliary air inlet areas 15's ability to capture oil fumes. With this structure, when cooking fumes reach the concave cavity 13, because the suction force of the main air inlet area 14 is greater than that of each auxiliary air inlet area 15, the fumes are first drawn into the fume hood 11 by the main air inlet area 14. When the amount of oil smoke is large, the oil smoke in the concave cavity 13 cannot be immediately and completely captured from the main air inlet area 14, causing the excess oil smoke to spread to the surroundings, and the diffused and escaping oil smoke is captured by the secondary air inlet area 15, thereby ensuring that the oil smoke cannot break through the secondary air inlet area 15 to escape, thereby improving the oil smoke capture capability of the range hood 1, so that the main air inlet area 14 and the secondary air inlet area 15 can fully surround the oil smoke to prevent the oil smoke from escaping, thereby improving the user experience of the operator. In addition, the above-mentioned form can make the air flow speed near the main air inlet area 14 large enough through the main air inlet area 14, so that the continuously flowing air flow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area 14, thereby preventing the oil smoke near the main air inlet area 14 from escaping.

[0128] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area 14. The oil smoke not captured by the main air inlet 141 is diffused to the surrounding area along the top wall 132 of the cavity 13, and the escaping oil smoke is captured by the secondary air inlet area 15. In other words, the range hood 1 of the present application achieves graded adsorption by virtue of the different suction forces of the main air inlet area 14 and the secondary air inlet area 15, thereby improving the range hood 1's ability to capture oil smoke.

[0129] In actual use, the kitchen system is a range hood 1 and a stove 2 commonly used in daily kitchens, and the range hood 1 and the stove 2 usually exist in pairs.

[0130] The kitchen system includes a stove 2 , and the projection of the main air inlet area 14 is within the range of the cooking area of ​​the stove 2 , thereby facilitating the main air inlet area 14 to absorb oil smoke.

[0131] In this embodiment, the projection of the main air inlet area 14 is within the range of the cooking area of ​​the stove 2, which means that the projection of the main air inlet area 14 is within the range of the pot, so that the oil smoke generated during cooking can be absorbed by the main air inlet area 14.

[0132] Wind Curtain Figure 7The dashed line in the figure is used to adaptively represent the main air inlet area 14, with the upper end of the dashed line representing the main air inlet area 14 and the lower end representing the cookware. The above structure ensures a high enough air velocity near the main air inlet area 14, allowing the continuously flowing air to form a natural air curtain, which is equivalent to providing an invisible structure near the main air inlet area 14, thereby preventing the escape of oil smoke near the main air inlet area.

[0133] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A range hood comprising a fume hood, characterized in that: The air inlet surface of the smoke collecting hood facing the cooker is inwardly recessed to form a cavity or a plurality of cavities spaced apart along the length direction of the smoke collecting hood; Each of the concave cavities includes a main air inlet area and at least one auxiliary air inlet area disposed therein, the suction force of the main air inlet area being greater than the suction force of each of the auxiliary air inlet areas, wherein: One of the main air inlet areas and at least one of the auxiliary air inlet areas are arranged in a surrounding manner; The smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement; The secondary air inlet area includes multiple secondary air inlets, and the secondary air inlets include auxiliary air inlets and secondary air inlets. The auxiliary air inlets are farther away from the main air inlet area than the secondary air inlets, and the air inlet area of ​​the secondary air inlets is larger than the air inlet area of ​​the auxiliary air inlets.

2. The range hood according to claim 1, wherein: The main air inlet area and the auxiliary air inlet area in each of the concave cavities are arranged in the same manner.

3. The range hood according to claim 1, wherein: The main air inlet areas in each of the concave cavities have the same orientation; And / or, the main air inlet areas in the respective concave cavities have the same extension distance in the direction of the circumferential arrangement.

4. The range hood according to claim 1, wherein: The main air inlet area and at least one auxiliary air inlet area of ​​each of the adjacent concave cavities form a surrounding arrangement.

5. The range hood according to claim 1, wherein: The surrounding arrangement shape formed by one of the main air inlet areas and at least one of the auxiliary air inlet areas is a rectangle, a circle, or a combination of a rectangle and a circle; And / or, the main air inlet area and the auxiliary air inlet area extend along a straight line, a curve, or a combination of a straight line and a curve.

6. The range hood according to claim 1, wherein: The number of the secondary air inlet areas is three.

7. The range hood according to claim 1, wherein: The main air inlet area includes one or more main air inlets.

8. The range hood according to claim 7, wherein: The main air inlet extends along the extension direction of the main air inlet area; And / or, the secondary air inlet extends along an extension direction of the secondary air inlet area.

9. The range hood according to claim 7, wherein: In the extension direction of the main air inlet area, there are multiple main air inlets; And / or, in the extension direction of the secondary air inlet area, there are multiple secondary air inlets.

10. The range hood according to claim 7, wherein: The area of ​​the main air inlet of the main air inlet region is respectively larger than the area of ​​the secondary air inlet of each of the secondary air inlet regions.

11. The range hood according to claim 7, wherein: The dimension of the main air inlet along the width direction of the smoke collecting hood is not less than 30 mm and not more than 80 mm.

12. The range hood according to claim 1, wherein: The smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement, which includes: The extension distance of the auxiliary air inlet area in the direction of the surrounding arrangement is greater than the extension distance of the main air inlet area in the direction of the surrounding arrangement; And / or, the coverage angle of the secondary air inlet area in the direction of the surrounding arrangement is greater than the coverage angle of the primary air inlet area in the direction of the surrounding arrangement.

13. The range hood according to claim 1, wherein: The main air inlet area is opened on the side wall or the top wall of the cavity, and at least part of the auxiliary air inlet area is opened on the side wall.

14. The range hood according to claim 13, wherein: The main air inlet area is opened on the top wall of the cavity.

15. The range hood according to claim 1, wherein: The main air inlet area is closer to the front end of the smoke collection hood than the auxiliary air inlet area; And / or, the projection of the main air inlet area is within the range of the cooking area of ​​the cooker.

16. The range hood according to claim 1, wherein: For the plurality of concave cavities, a secondary air inlet area is provided between two adjacent concave cavities.

17. The range hood according to claim 1 or 11, characterized in that: The main air inlet area is located in the front middle of the air inlet surface; The distance between the main air inlet area and the front end of the smoke collecting hood is not less than 50 mm and not more than 200 mm.

18. The range hood according to claim 1, wherein: The side walls of the cavity extend obliquely outward from the top wall of the cavity.

19. A kitchen system, characterized in that: The kitchen system includes the range hood according to any one of claims 1 to 18.

20. The kitchen system according to claim 19, wherein: The kitchen system includes a stove, and the projection of the main air inlet area is within the range of the cooking area of ​​the stove.

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