Range hood and kitchen system comprising same

Abstract

The utility model provides a range hood and a kitchen system including the same, the range hood comprises a smoke collecting hood, the air inlet surface of the smoke collecting hood facing a stove is provided with a main air inlet area and at least one auxiliary air inlet area, the suction force of the main air inlet area is greater than that of each auxiliary air inlet area, and the suction force of each auxiliary air inlet area is greater than that of the main air inlet area. The at least one auxiliary air inlet area is located at one end of the main air inlet area, the range hood further comprises a partition part, the partition part is located in the exhaust fume collecting hood and covers the main air inlet area so as to separate the main air inlet area from the auxiliary air inlet areas, and an outlet is formed in at least one surface, away from the auxiliary air inlet area, of the partition part. The suction force of the main air inlet area is larger than that of each auxiliary air inlet area, so that the air inlet amount of the main air inlet area is larger than that of the auxiliary air inlet areas. By adopting the structural form, the airflow of the auxiliary air inlet area is not influenced by the airflow of the main air inlet area, so that the problem that the instantaneous resistance at the inlet of the auxiliary air inlet area is instantaneously increased is solved, and the lampblack can be prevented from escaping.

Description

Technical Field

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

[0002] When cooking in a home kitchen, the oil smoke produced will diffuse outward with the airflow. For ceiling-mounted range hoods, in order to prevent head collisions and affect vision, a certain installation height is generally required. As the oil smoke spreads, its coverage area gradually becomes larger, and multiple inlets need to be set up to capture as much oil smoke as possible to prevent the oil smoke from escaping. For ceiling-mounted range hoods with multiple inlets, due to the different speed directions of different inlets, after the airflows enter the range hood cavity from different inlets, they intersect with each other, affecting the upstream resistance. Especially when the air volume is unevenly distributed, the inlet with a smaller air intake will be affected by the inlet with a larger air intake, increasing the instantaneous resistance at the inlet with a smaller air intake. When oil smoke is about to enter, it is easy for the oil smoke to escape if it is blocked in front. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect that oil smoke escapes due to different speed directions of different inlets of a ceiling-suction range hood with multiple inlets, and to provide a range hood and a kitchen system including the same.

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

[0005] The utility model discloses a range hood, the range hood comprises a smoke collecting hood, a main air inlet area and at least one auxiliary air inlet area are arranged on the air inlet surface of the smoke collecting hood facing the stove, the suction force of the main air inlet area is respectively greater than the suction force of each auxiliary air inlet area, at least one auxiliary air inlet area is located at one end of the main air inlet area, the range hood also comprises a partition, the partition is located in the smoke collecting hood and is covered on the main air inlet area to separate the main air inlet area from the auxiliary air inlet area, and an outlet is arranged on at least one surface of the partition away from the auxiliary air inlet area.

[0006] In this solution, the suction force of the main air inlet area is greater than the suction force of each auxiliary air inlet area, so that the air intake of the main air inlet area is greater than the air intake of the auxiliary air inlet area. With the above-mentioned structural form, the main air inlet area and the auxiliary air inlet area can be separated by the partition, so that the airflow of the auxiliary air inlet area will not be affected by the airflow of the main air inlet area, so that the instantaneous resistance at the entrance of the auxiliary air inlet area will not increase instantly, thereby preventing the escape of oil smoke.

[0007] It should be further explained that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, and the oil smoke that is not captured by the main air inlet diffuses to the surroundings, thereby capturing the escaped oil smoke through the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's ability to capture oil smoke through graded adsorption. In addition, the adoption of the above-mentioned structural form eliminates the influence of the main air inlet area on the instantaneous resistance at the entrance of the secondary air inlet area, improves the ability of the secondary air inlet area to capture oil smoke, and further improves the ability of the range hood to capture oil smoke. As for the main air inlet area, the area surrounded by the partition limits the airflow flowing in from the main air inlet area, which can prevent it from diffusing outward, which is beneficial to increase the flow rate of the airflow, thereby facilitating the main air inlet area to traction of oil smoke, and further facilitating the range hood's ability to capture oil smoke.

[0008] Preferably, the surface includes a first surface and a second surface, and the moving path of the oil smoke from the main air inlet area through the outlet to the fan is the moving path of the oil smoke, and the moving direction change of the oil smoke through the outlet located on the first surface is less than the moving direction change of the oil smoke through the outlet located on the second surface.

[0009] In this solution, the oil smoke captured by the main air inlet area enters the partition, and enters the smoke hood from the outlet, and is discharged to the outside by the fan, which reduces the energy loss of the oil smoke on the moving path from the main air inlet area to the fan, thereby helping to reduce the flow resistance of the oil smoke on the moving path, and thus helping the range hood to discharge the oil smoke. In addition, the above-mentioned structural form makes the outlet on the partition close to the fan, so that the airflow and oil smoke flowing out of the partition outlet can immediately enter the fan and be discharged, which is beneficial to the range hood's capture rate of oil smoke.

[0010] Preferably, the outlet is at least opened on the upper surface of the smoke collecting hood.

[0011] In this solution, the above-mentioned structural form is adopted to further reduce the energy loss of the oil smoke on the movement path from the air inlet area to the fan, thereby further reducing the flow resistance of the oil smoke on the above-mentioned path, which is further beneficial to the emission effect of the range hood on the oil smoke.

[0012] Preferably, the main air inlet area includes a plurality of main air inlets, and the plurality of main air inlets are arranged at intervals along the length direction of the smoke collecting hood;

[0013] At least two of the main air inlets are covered by a partition, and in the axial direction of the main air inlets located in the same partition, the projection of at least one outlet opened on the upper surface covers the first gap between two adjacent main air inlets.

[0014] In the present solution, the above-mentioned structural form is adopted, and the projection of at least one outlet opened on the upper surface covers the first gap between two adjacent main air inlets. It can be understood that at least a part directly below the upper surface is the first gap, which is helpful to prevent oil droplets and dust on the upper surface from dripping out from the main air inlet.

[0015] The total air inlet area of ​​the main air inlet region is S1, and the total area of ​​the outlet is S2; wherein S2 is not less than 0.6S1.

[0016] In this solution, for the main air inlet area, during the entire flow process, the smaller the area, the greater the corresponding airflow velocity. Since the greater the airflow velocity, the greater the traction of the airflow on the oil smoke, the better the smoke capture effect. Therefore, in order to improve the smoke capture effect, a larger airflow velocity is required to capture the oil smoke. For the secondary air inlet area, the larger the cross-sectional area, the smaller the flow velocity, and the smaller the corresponding pressure loss. Therefore, the larger the area of ​​the secondary air inlet area, the more conducive it is to reducing the resistance of the oil smoke on the movement path, which is beneficial to the emission effect of the range hood on the oil smoke. The above-mentioned structural form is adopted to reduce the pressure loss generated by the airflow at the outlet, which is further beneficial to reducing the resistance of the oil smoke on the movement path, which is further beneficial to the emission effect of the range hood on the oil smoke.

[0017] Preferably, the height of the rear surface of the partition near the rear end of the smoke hood is higher than the height of the front surface of the partition near the front end of the smoke hood, and the upper surface of the partition is inclined from the front surface toward the rear surface.

[0018] In this solution, the above-mentioned structural form is adopted, and the oil droplets on the upper surface can flow from the upper surface to the front surface according to the inclination direction of the upper surface, and flow from the front surface to the air inlet surface of the smoke hood.

[0019] Preferably, a second gap is provided between the upper end of the smoke collecting hood and at least a portion of the upper surface.

[0020] In this solution, the above-mentioned structural form is adopted to facilitate the oil droplets on the upper surface to flow along the inclined direction of the upper surface.

[0021] Preferably, the range hood further includes an oil collecting box, and in the width direction of the smoke hood, the air inlet surface extends obliquely upward from the rear end of the smoke hood toward the front end of the smoke hood, and the oil collecting box is installed on a portion of the air inlet surface close to the rear end of the range hood, and the opening of the oil collecting box faces the air inlet surface.

[0022] In the present solution, the above-mentioned structural form is adopted so that the oil droplets on the air inlet surface can flow into the oil collecting box along the inclined direction of the air inlet surface, which is beneficial to the collection of oil droplets by the range hood.

[0023] Preferably, the distance between the third surface of the partition and the wall surface of the main air inlet of the main air inlet area close to the third surface is not less than 5 mm and not more than 20 mm;

[0024] And / or, the distance between the lower end of the partition and at least a portion of the air inlet surface is not less than 3 mm and not more than 10 mm.

[0025] In the present solution, the above-mentioned structural form is adopted, and the distance between the surface of the partition and the wall surface of the opening of the main air inlet area is not less than 5mm, so that there is a sufficiently large distance between the partition and the smoke hood to prevent the oil droplets from contacting the air inlet on the smoke hood during the dripping process and preventing them from flowing down from the edge of the air inlet. The distance between the surface of the partition and the wall surface of the opening of the main air inlet area is not more than 20mm, which can avoid the distance between the partition and the front edge of the air inlet being too large. During the operation of the range hood, the airflow in the space between the front edge of the main air inlet area and the partition will always rotate in the space and cannot flow out, or the previous air will flow out and new air will be replenished, thereby forming a vortex in the area. The flow vortex will generate noise, which will increase the airflow noise of the range hood; in addition, the vortex will pull other normal airflows during the flow process, exert reverse drag on the air flowing in from the main air inlet area, and prevent the airflow from flowing to the fan, which will affect the overall flow and reduce the air volume of the range hood.

[0026] The distance between the lower end of the partition and the part of the air inlet surface close to the main air inlet area is not less than 3 mm and not more than 10 mm, which can prevent interference fit caused by dimensional tolerance and deformation due to bumps during installation, and avoid the air volume in the main air inlet area from affecting the auxiliary air inlet area.

[0027] The utility model further discloses a kitchen system, which comprises the range hood as described in any one of the above items.

[0028] In this solution, the above structure is adopted to apply the range hood to the kitchen system, 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 air intake volume of the main air inlet area is greater than the air intake volume of the auxiliary air inlet area. With the above structure, the main air inlet area and the auxiliary air inlet area can be separated by a partition, so that the airflow of the auxiliary air inlet area will not be affected by the airflow of the main air inlet area, so that the instantaneous resistance at the entrance of the auxiliary air inlet area will not increase instantly, thereby preventing the escape of oil smoke.

[0029] It should be further explained that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, and the oil smoke that is not captured by the main air inlet diffuses to the surroundings, thereby capturing the escaped oil smoke through the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's ability to capture oil smoke through graded adsorption. In addition, the adoption of the above-mentioned structural form eliminates the influence of the main air inlet area on the instantaneous resistance at the entrance of the secondary air inlet area, improves the ability of the secondary air inlet area to capture oil smoke, and further improves the ability of the range hood to capture oil smoke. As for the main air inlet area, the area surrounded by the partition limits the airflow flowing in from the main air inlet area, which can prevent it from diffusing outward, which is beneficial to increase the flow rate of the airflow, thereby facilitating the main air inlet area to traction of oil smoke, and further facilitating the range hood's ability to capture oil smoke.

[0030] The positive and progressive effects of the utility model are:

[0031] The suction force of the main air inlet area is greater than the suction force of each auxiliary air inlet area, so that the air intake volume of the main air inlet area is greater than the air intake volume of the auxiliary air inlet area. With the above-mentioned structural form, the main air inlet area and the auxiliary air inlet area can be separated by the partition, so that the airflow of the auxiliary air inlet area will not be affected by the airflow of the main air inlet area, so that the instantaneous resistance at the entrance of the auxiliary air inlet area will not increase instantly, thereby preventing the escape of oil smoke.

[0032] It should be further explained that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area, and the oil smoke that is not captured by the main air inlet diffuses to the surroundings, thereby capturing the escaped oil smoke through the secondary air inlet area. In other words, the range hood of the present application can improve the range hood's ability to capture oil smoke through graded adsorption. In addition, the adoption of the above-mentioned structural form eliminates the influence of the main air inlet area on the instantaneous resistance at the entrance of the secondary air inlet area, improves the ability of the secondary air inlet area to capture oil smoke, and further improves the ability of the range hood to capture oil smoke. As for the main air inlet area, the area surrounded by the partition limits the airflow flowing in from the main air inlet area, which can prevent it from diffusing outward, which is beneficial to increase the flow rate of the airflow, thereby facilitating the main air inlet area to traction of oil smoke, and further facilitating the range hood's ability to capture oil smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a range hood according to Embodiment 1 of the present utility model.

[0034] Figure 2 It is a partial cross-sectional schematic diagram of a range hood according to Embodiment 1 of the present utility model.

[0035] Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle.

[0036] Figure 4 It is a cross-sectional schematic diagram of the range hood according to Embodiment 1 of the present utility model.

[0037] Figure 5 It is a partial schematic diagram of the range hood according to Embodiment 1 of the present utility model.

[0038] Figure 6 This is a partial structural schematic diagram of the range hood of Example 1 of the utility model.

[0039] Figure 7 This is a schematic diagram of the structure of the separator of Example 1 of the utility model.

[0040] Figure 8 It is a cross-sectional schematic diagram of a range hood according to Embodiment 2 of the present utility model.

[0041] Fig. 9 This is a schematic diagram of the structure of the separator of Example 2 of the utility model.

[0042] Fig.10 It is a cross-sectional schematic diagram of a range hood according to Embodiment 3 of the present utility model.

[0043] Description of reference numerals:

[0044] Range hood 1

[0045] Fume hood 11

[0046] Air inlet surface 111

[0047] Main air intake area 112

[0048] Main air inlet 1121

[0049] Wall 11211

[0050] Auxiliary air intake area 113

[0051] Secondary air inlet 1131

[0052] First gap 1132

[0053] Cavity 114

[0054] The upper wall surface 1141 of the cavity

[0055] Separator 12

[0056] Exit 121

[0057] First surface 122

[0058] Front surface 123

[0059] Upper surface 124

[0060] Groove 1241

[0061] Rear surface 125

[0062] Opening 126

[0063] Fan 13

[0064] Oil box 14

[0065] Length direction of the smoke hood L

[0066] Width direction W of the fume hood DETAILED DESCRIPTION

[0067] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0068] Example 1

[0069] like Figures 1 to 7 As shown, the present embodiment provides a range hood 1, the range hood 1 comprises a fume collecting hood 11, a main air inlet area 112 and at least one auxiliary air inlet area 113 are provided on an air inlet surface 111 of the fume collecting hood 11 facing the cooker, the suction force of the main air inlet area 112 is respectively greater than the suction force of each auxiliary air inlet area 113, at least one auxiliary air inlet area 113 is located at one end of the main air inlet area 112, the range hood 1 further comprises a partition 12, the partition 12 is located in the fume collecting hood 11, and is provided on the main air inlet area 112 to separate the main air inlet area 112 from the auxiliary air inlet area 113, and at least one surface of the partition 12 away from the auxiliary air inlet area 113 is provided with an outlet 121. Specifically, the suction force of the main air inlet area 112 is respectively greater than the suction force of each auxiliary air inlet area 113, so that the air intake of the main air inlet area 112 is greater than the air intake of the auxiliary air inlet area 113. By adopting the above-mentioned structural form, the main air inlet area 112 and the auxiliary air inlet area 113 can be separated by the partition 12, so that the airflow in the auxiliary air inlet area 113 will not be affected by the airflow in the main air inlet area 112, so that the instantaneous resistance at the entrance of the auxiliary air inlet area 113 will not increase instantly, thereby preventing the escape of oil smoke.

[0070] It should be further explained that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area 112, and the oil smoke not captured by the main air inlet area 112 spreads to the surroundings, so that the escaped oil smoke is captured by the secondary air inlet area 113. In other words, the range hood 1 of the present application can improve the oil smoke capture capacity of the range hood 1 through graded adsorption. In addition, the above-mentioned structural form eliminates the influence of the main air inlet area 112 on the instantaneous resistance at the entrance of the secondary air inlet area 113, improves the oil smoke capture capacity of the secondary air inlet area 113, and further improves the oil smoke capture capacity of the range hood 1. As for the main air inlet area 112, the area surrounded by the partition 12 limits the airflow flowing in from the main air inlet area 112, which can prevent it from spreading outward, which is conducive to increasing the flow rate of the airflow, thereby facilitating the main air inlet area 112 to traction of oil smoke, and further facilitating the oil smoke capture capacity of the range hood 1.

[0071] During specific use, the number of the auxiliary air inlet areas 113 is at least two, wherein the two auxiliary air inlet areas 113 are respectively located at two ends of the main air inlet area 112 .

[0072] In addition, the suction force of the main air inlet area 112 and the suction force of the auxiliary air inlet area 113 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 112 and the auxiliary air inlet area 113 are adsorbed by the same fan 13. Therefore, when the air inlet area of ​​the main air inlet area 112 is larger than the air inlet area of ​​the auxiliary air inlet area, the adsorption capacity of the oil fume in the main air inlet area 112 is greater than the adsorption capacity of the oil fume in the auxiliary air inlet area 113. For the air inlet area, the greater the suction force, the greater the air intake volume. In this embodiment, the auxiliary air inlet area 113 includes a plurality of secondary air inlets 1131, and the plurality of secondary air inlets 1131 are respectively located at both ends of the main air inlet area 112. At this time, at least one surface of the partition 12 away from the auxiliary air inlet area 113 is provided with an outlet 121, which means that the upper surface 124, the front surface 123 and the rear surface 125 of the partition 12 can be provided with an outlet 121. In addition, the top of the separator 12 is an arc surface or a plane, and the four sides are surrounded by folded edges to form a fence structure, thereby increasing the overall structural strength of the separator 12.

[0073] like Figures 2 to 7As shown, the surface includes a first surface 122 and a second surface, and the main air inlet area 112 reaches the fan 13 through the outlet 121, which is the moving path of the oil smoke. The moving direction of the moving path of the oil smoke through the outlet 121 located on the first surface 122 changes less than the moving direction of the moving path of the oil smoke through the outlet 121 located on the second surface. Specifically, the oil smoke captured by the main air inlet area 112 enters the partition 12, and enters the smoke hood 11 from the outlet 121, and is discharged to the outside by the fan 13, which reduces the energy loss of the oil smoke on the moving path from the main air inlet area 112 to the fan 13, thereby helping to reduce the flow resistance of the oil smoke on the moving path, and further helps to improve the exhaust effect of the range hood 1 on the oil smoke. In addition, the above-mentioned structural form makes the outlet 121 on the partition 12 close to the fan 13, so that the airflow and oil smoke flowing out of the outlet 121 of the partition 12 can immediately enter the inside of the fan 13 and be discharged, which is beneficial to the capture rate of the oil smoke by the range hood 1.

[0074] Regarding the above statement that “the moving direction of the moving path of the oil smoke through the outlet 121 located on the first surface 122 changes less than the moving direction of the moving path of the oil smoke through the outlet 121 located on the second surface”, specifically, when the installation position of the fan 13 is located at the rear side of the main air inlet area 112, the outlet 121 can be opened on the upper surface 124 and / or the rear surface 125, and the above-mentioned first surface 122 refers to the upper surface 124 and / or the rear surface 125; when the fan 13 is installed at the main air inlet area 112, the outlet 121 can be opened at the upper surface 124 and / or the rear surface 125. When the fan 13 is installed directly above the main air inlet area 112, the outlet 121 can be opened on the upper surface 124 and / or the front surface 123 and / or the rear surface 125, and the above-mentioned first surface 122 refers to the upper surface 124 and / or the front surface 123 and / or the rear surface 125; when the installation position of the fan 13 is located on the front side of the main air inlet area 112, the outlet 121 can be opened on the upper surface 124 and / or the front surface 123, and the above-mentioned first surface 122 refers to the upper surface 124 and / or the front surface 123.

[0075] The second surface mentioned above is characterized in detail by taking the installation position of the fan 13 located at the rear side of the main air inlet area 112 and the installation position of the fan 13 located at the front side of the main air inlet area 112 as examples. When the installation position of the fan 13 is located at the rear side of the main air inlet area 112, the second surface is the front surface 123. In other words, when the installation position of the fan 13 is located at the rear side of the main air inlet area 112, the change in the moving direction of the moving path of the oil smoke through the outlet 121 on the upper surface 124 and / or the outlet 121 on the rear surface 125 is less than the change in the moving direction of the moving path of the oil smoke through the outlet 121 on the front surface 123. When the installation position of the fan 13 is located at the front side of the main air inlet area 112, the second surface is the rear surface 125. In other words, when the installation position of the fan 13 is located on the front side of the main air inlet area 112, the change in the moving direction of the moving path of the oil smoke through the outlet 121 on the upper surface 124 and / or the outlet 121 on the front surface 123 is less than the change in the moving direction of the moving path of the oil smoke through the outlet 121 on the rear surface 125.

[0076] It should be further explained that, taking the installation position of the fan 13 being located on the rear side of the main air inlet area 112 as an example, the outlet 121 can be opened on the upper surface 124 and / or the rear surface 125, which means that the opening can be opened only on the upper surface 124; the opening can also be opened only on the rear surface 125, or the opening can also be opened on both the upper surface 124 and the rear surface 125.

[0077] Preferably, the outlet 121 is at least opened on the upper surface 124 of the smoke collecting hood 11, so that the change in the moving direction of the oil smoke is minimized when it moves on the moving path, further reducing the energy loss of the oil smoke on the moving path from the air inlet area to the fan 13, thereby further reducing the flow resistance of the oil smoke on the above path, and further facilitating the emission effect of the range hood 1 on the oil smoke.

[0078] like Figure 4 As shown, in this embodiment, the installation position of the fan 13 is located at the rear side of the main air inlet area 112 , and the outlet 121 can be opened on the upper surface 124 and the rear surface 125 .

[0079] like Figures 1 to 4As shown, the main air inlet area 112 includes a plurality of main air inlets 1121, and the plurality of main air inlets 1121 are arranged at intervals along the length direction of the smoke hood 11; at least two main air inlets 1121 are covered by a partition 12, and in the axial direction of the main air inlets 1121 located in the same partition 12, the projection of at least one outlet 121 opened on the upper surface 124 covers the first gap 1132 between two adjacent main air inlets 1121. With the above-mentioned structural form, the projection of at least one outlet 121 opened on the upper surface 124 covers the first gap 1132 between two adjacent main air inlets 1121, which can be understood as at least a portion of the first gap 1132 directly below the upper surface 124, which is conducive to preventing oil droplets and dust on the upper surface 124 from dripping out of the main air inlet 1121.

[0080] It should be further explained that the present embodiment uses two main air inlets 1121 as an example for adaptive expression. In other embodiments, multiple main air inlets 1121 may be located in the same partition 12. Multiple main air inlets 1121 may also be located in different partitions 12, and each partition 12 has at least two main air inlets 1121. Furthermore, in the axial direction of the main air inlet 1121 located in the same partition 12, the projection of the outlet 121 opened on the upper surface 124 does not overlap with the main air inlet 1121 at all, ensuring that the oil droplets on the upper surface 124 will not drip out of the main air inlet 1121.

[0081] The total air inlet area of ​​the main air inlet area is S1, and the total area of ​​the outlet is S2; wherein S2 is not less than 0.6S1. For the main air inlet area 112, during the entire flow process, the smaller the area, the greater the corresponding airflow velocity. Since the greater the airflow velocity, the greater the traction of the airflow on the oil smoke, the better the smoke capture effect. Therefore, in order to improve the smoke capture effect, a larger airflow velocity is required to capture the oil smoke. For the secondary air inlet area 113, the larger the cross-sectional area, the smaller the flow rate, and the smaller the corresponding pressure loss. Therefore, the larger the area of ​​the secondary air inlet area 113, the more conducive it is to reduce the resistance of the oil smoke on the movement path, thereby facilitating the emission effect of the range hood 1 on the oil smoke. The above-mentioned structural form is adopted to reduce the pressure loss generated by the airflow at the outlet 121, which is further conducive to reducing the resistance of the oil smoke on the movement path, thereby further facilitating the emission effect of the range hood 1 on the oil smoke.

[0082] In other embodiments, the relationship between the total area of ​​the main air inlet 1121 and the total area of ​​the main air inlet region 112 is not limited.

[0083] The height of the rear surface 125 of the partition 12 near the rear end of the smoke hood 11 is higher than the height of the front surface 123 of the partition 12 near the front end of the smoke hood 11, and the upper surface 124 of the partition 12 is inclined from the front surface 123 to the direction close to the rear surface 125. With the above structure, the oil droplets on the upper surface 124 can flow from the upper surface 124 to the front surface 123 according to the inclined direction of the upper surface 124, and flow from the front surface 123 to the air inlet surface 111 of the smoke hood 11.

[0084] A second gap is provided between the upper end of the smoke hood 11 and at least a portion of the upper surface 124, so that the oil droplets on the upper surface 124 can flow along the inclined direction of the upper surface 124. Specifically, when the oil droplets on the smoke hood 11 fall onto the upper surface 124, the oil droplets can flow along the inclined direction of the upper surface 124 from the second gap.

[0085] See also Figures 5 to 7 It is understood that in this embodiment, a groove 1241 is provided in a part of the upper surface 124, so that a second gap exists between the upper end of the smoke hood 11 and the groove 1241, so that the oil smoke can flow in the groove 1241. The remaining area of ​​the upper surface 124 is provided with a threaded hole, so that the bolt passes through the upper end of the smoke hood 11 and the threaded hole to connect the smoke hood 11 and the partition 12, thereby improving the stability and reliability of the partition 12 disposed in the smoke hood 11.

[0086] like Figure 4 As shown, the range hood 1 further includes an oil collecting box 14. In the width direction of the fume collecting hood 11, the air inlet surface 111 extends obliquely upward from the rear end of the fume collecting hood 11 to the direction close to the front end of the fume collecting hood 11. The oil collecting box 14 is installed on the air inlet surface 111 near the rear end of the range hood, and the opening of the oil collecting box 14 faces the air inlet surface 111. With the above-mentioned structural form, the oil droplets on the air inlet surface 111 can flow into the oil collecting box 14 along the oblique direction of the air inlet surface 111, which is conducive to the collection of oil droplets by the range hood 1.

[0087] It should be specifically explained that an opening 126 is provided at one end of the partition 12 (in the present embodiment, the lower end of the partition 12), and the main air inlet area 112 is covered in the partition 12 through the opening 126. The distance between the third surface of the partition 12 and the wall surface 11211 of the main air inlet 1121 of the main air inlet area 112 close to the third surface is not less than 5 mm and not more than 20 mm; specifically, taking the front surface of the partition 12 as an example, the distance between the third surface and the wall surface 11211 of the main air inlet 1121 of the main air inlet area 112 refers to the distance between the front surface of the partition 12 and the front wall surface of the main air inlet. For other surfaces of the partition 12, the distance between the surface of the partition 12 and the wall surface of the main air inlet 1121 of the main air inlet area 112 refers to the distance between one of the surfaces of the partition 12 and the wall surface of the main air inlet 1121 close to the surface.

[0088] In addition, the distance between the third surface of the partition 12 and the wall surface 11211 of the main air inlet 1121 of the main air inlet area 112 close to the third surface is not less than 5 mm, so that there is a sufficiently large distance between the partition 12 and the smoke hood 11, preventing the oil droplets from contacting the air inlet on the smoke hood 11 during the dripping process and preventing them from flowing down from the edge of the air inlet. The distance between the third surface of the partition 12 and the wall surface 11211 of the main air inlet 1121 of the main air inlet area 112 close to the third surface is not greater than 20 mm, which can avoid the distance between the third surface of the partition 12 and the wall surface 11211 of the main air inlet 1121 being too large. During the operation of the range hood 1, the airflow in the space between the wall surface 11211 of the main air inlet 1121 and the partition 12 will always rotate in the space and cannot flow out, or the previous air will flow out and new air will be replenished, thereby forming a vortex in the area. The flow vortex will generate noise, increasing the airflow noise of the range hood 1; in addition, the vortex will pull other normal airflows during the flow process, exert a reverse drag on the air flowing in from the main air inlet area 112, and prevent the airflow from flowing toward the fan 13, which will further affect the overall flow and reduce the air volume of the range hood 1.

[0089] The distance between the lower end of the partition 12 and the portion of the air inlet surface 111 close to the main air inlet area 112 is not less than 3 mm and not more than 10 mm. Specifically, the distance between the lower surface of the partition 12 and the surface of the smoke hood 11 close to the lower surface is not less than 3 mm, which can prevent interference fit caused by dimensional tolerance and deformation caused by bumps during installation. The distance between the lower surface of the partition and the portion of the air inlet surface 111 in the smoke hood 11 close to the main air inlet area 112 is not more than 10 mm, which can prevent the gap between the surface of the partition 12 and the surface of the smoke hood 11 close to the lower surface from being too large, so that the oil smoke in the partition 12 flows out from the gap and affects the secondary air inlet area 113.

[0090] like Figure 3 As shown, the distance between the surface of the partition 12 and the wall 11211 of the main air inlet 1121 of the main air inlet area 112 is d1; the distance between the lower end of the partition 12 and the part of the air inlet surface 111 close to the main air inlet area 112 is d2.

[0091] It should be specifically explained that the air inlet surface 111 is provided with an inwardly recessed cavity 114, and the main air inlet area 112 is provided in the cavity 114. Therefore, the portion of the air inlet surface 111 close to the main air inlet area 112 mentioned above refers to the portion of the upper wall surface 1141 of the cavity close to the main air inlet area 112.

[0092] This embodiment further provides a kitchen system, which includes a range hood 1. The range hood 1 is applied to the kitchen system by adopting the above-mentioned structure, and the suction force of the main air inlet area 112 is respectively greater than the suction force of each auxiliary air inlet area 113, so that the air intake volume of the main air inlet area 112 is greater than the air intake volume of the auxiliary air inlet area 113. By adopting the above-mentioned structure, the main air inlet area 112 and the auxiliary air inlet area 113 can be separated by the partition 12, so that the airflow of the auxiliary air inlet area 113 will not be affected by the airflow of the main air inlet area 112, so that the instantaneous resistance at the entrance of the auxiliary air inlet area 113 will not increase instantly, thereby preventing the escape of oil smoke.

[0093] In specific implementation, for the separator 12, the present invention provides some feasible implementation modes as follows in the following content, but the protection scope of this embodiment should not be limited to the following implementation modes.

[0094] Example 2

[0095] like Figure 8 and Fig. 9 As shown, the outlet 121 is opened on the rear surface 125 of the partition 12, so that the airflow entering from the main air inlet area 112 can immediately flow out from the outlet 121, reducing the flow channel resistance. Under the same input power, the air volume is larger and the efficiency is higher.

[0096] Example 3

[0097] like Fig.10 As shown, the partition 12 is arranged one-to-one with the main air inlets 1121, and the outlet 121 is opened on the rear surface 125 of the partition 12, so that the multiple main air inlets 1121 are separated from each other to prevent the airflows between the main air inlets 1121 from interfering with each other.

[0098] 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. A range hood, comprising a fume collecting hood, characterized in that: A main air inlet area and at least one auxiliary air inlet area are provided on the air inlet surface of the smoke hood facing the stove, the suction force of the main air inlet area is respectively greater than the suction force of each of the auxiliary air inlet areas, at least one of the auxiliary air inlet areas is located at one end of the main air inlet area, the range hood also includes a partition, the partition is located in the smoke hood and is covered on the main air inlet area to separate the main air inlet area from the auxiliary air inlet area, and an outlet is provided on at least one surface of the partition away from the auxiliary air inlet area.

2. The range hood according to claim 1, characterized in that: The surface includes a first surface and a second surface, and the moving path of the oil smoke from the main air inlet area through the outlet to the fan is the moving path of the oil smoke. The moving direction of the oil smoke passing through the outlet located on the first surface changes less than the moving direction of the oil smoke passing through the outlet located on the second surface.

3. The range hood according to claim 2, characterized in that: The outlet is at least opened on the upper surface of the smoke collecting hood.

4. The range hood according to claim 3, characterized in that: The main air inlet area includes a plurality of main air inlets, and the plurality of main air inlets are arranged at intervals along the length direction of the smoke collecting hood; At least two of the main air inlets are covered by a partition, and in the axial direction of the main air inlets located in the same partition, the projection of at least one outlet opened on the upper surface covers the first gap between two adjacent main air inlets.

5. The range hood according to claim 1, characterized in that: The total air inlet area of ​​the main air inlet region is S1, and the total area of ​​the outlet is S2; wherein S2 is not less than 0.6S1.

6. The range hood according to claim 1, characterized in that: The height of the rear surface of the partition close to the rear end of the smoke hood is higher than the height of the front surface of the partition close to the front end of the smoke hood, and the upper surface of the partition is inclined from the front surface to the rear surface.

7. The range hood according to claim 6, characterized in that: A second gap is defined between the upper end of the smoke collecting hood and at least a portion of the upper surface.

8. The range hood according to claim 6 or 7, characterized in that: The range hood also includes an oil collecting box. In the width direction of the smoke hood, the air inlet surface extends obliquely upward from the rear end of the smoke hood toward the front end of the smoke hood. The oil collecting box is installed on a portion of the air inlet surface close to the rear end of the range hood, and the opening of the oil collecting box faces the air inlet surface.

9. The range hood according to claim 1, characterized in that: The distance between the third surface of the partition and the wall surface of the main air inlet of the main air inlet area close to the third surface is not less than 5 mm and not more than 20 mm; And / or, the distance between the lower end of the partition and the portion of the air inlet surface close to the main air inlet area is not less than 3 mm and not more than 10 mm.

10. A kitchen system, characterized in that: The kitchen system comprises the range hood according to any one of claims 1-9.

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