Range hood

Abstract

The invention discloses a range hood. The range hood comprises a box body, a smoke gathering plate and an air curtain mechanism, wherein the box body is provided with a front end facing a user and a rear end opposite to the front end; the smoke gathering plate is arranged on the box body and matched with the box body to form a flow guide cavity, in the direction from the front end to the rear end of the box body, the distance between the side, close to the front end, of the smoke gathering plate and the cooking bench surface is smaller than the distance between the side, close to the rear end, of the smoke gathering plate and the cooking bench surface, two layers of smoke inlet nets are arranged at a smoke inlet of the smoke gathering plate, and a flow guide space is formed between the two layers of smoke inlet nets in a spaced mode; the air curtain mechanism is arranged at the front end of the box body, and an air outlet of the air curtain mechanism communicates with the diversion space. The smoke gathering plate and the box body are oppositely arranged, so that the distance between the side, close to a user, of the smoke gathering plate and the cooking bench surface is smaller than the distance between the side, away from the user, of the smoke gathering plate and the cooking bench surface, oil smoke can be gathered in the direction away from the user, contact between the oil smoke and the user is reduced, and the problem of smoke leakage at the front end is solved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, in particular to a range hood. Background Art

[0002] A range hood is an indispensable electrical appliance in a modern kitchen, mainly used to effectively remove oil fumes during cooking, keep the kitchen air clean and hygienic, and improve the comfort of the cooking environment.

[0003] In the related art, the smoke collecting plate of the range hood is inclined towards the cooking surface and the user. When using the range hood, the oil fumes come into large-area contact with the user, affecting the user experience. Summary of the Invention

[0004] The present application provides a range hood to solve the technical problem that in the related art, the oil fumes come into large-area contact with the user when the range hood is in use, affecting the user experience.

[0005] To solve the above technical problem, one technical solution adopted by the present application on the one hand is: to provide a range hood. The range hood includes a box body, a smoke collecting plate and an air curtain mechanism.

[0006] Wherein, the box body has a front end facing the user and a rear end opposite to the front end. The smoke collecting plate is arranged on the box body and cooperates with the box body to form a diversion cavity. In the direction from the front end to the rear end of the box body, the distance between the side of the smoke collecting plate close to the front end and the cooking surface is less than the distance between the side of the smoke collecting plate close to the rear end and the cooking surface. The smoke inlet of the smoke collecting plate is provided with two layers of smoke inlet nets, and a diversion space is formed by the interval between the two layers of smoke inlet nets. The air curtain mechanism is arranged at the front end of the box body, and its air outlet is communicated with the diversion space.

[0007] In some embodiments, the two layers of smoke inlet nets are arranged in parallel.

[0008] In some embodiments, the smoke inlet net is provided with at least one first air inlet structure and at least one second air inlet structure. The first air inlet structure is arranged close to the front end of the box body, the second air inlet structure is arranged close to the rear end of the box body, and the first air inlet structure and the second air inlet structure are arranged at intervals.

[0009] In some embodiments, the air inlet area of the first air inlet structure is smaller than the air inlet area of the second air inlet structure.

[0010] In some embodiments, at least one smoke inlet net is provided with two first air inlet structures and two second air inlet structures. Among them, the two second air inlet structures are arranged at intervals along the arrangement direction from the left end to the right end of the box body; the two first air inlet structures are arranged at intervals along the arrangement direction from the left end to the right end of the box body.

[0011] The spaced areas between the two second air inlet structures, the spaced areas between the two first air inlet structures, and the spaced areas between the second air inlet structure and the corresponding first air inlet structure communicate with each other to form a cross-shaped wind blocking area.

[0012] In some embodiments, the air curtain mechanism includes two air curtain assemblies, which are arranged at intervals along the arrangement direction from the left end to the right end of the box body.

[0013] In some embodiments, the air curtain assembly includes a fan and an air duct. Among them, the fan includes a first air inlet and a first air outlet; the air duct includes a second air inlet and a second air outlet, the second air inlet is connected to the first air outlet, and the second air outlet serves as the air outlet of the air curtain assembly and communicates with the diversion space.

[0014] Among them, a third air inlet is provided at the top end of the box body, and the third air inlet communicates with the first air inlet.

[0015] In some embodiments, the air duct extends along the arrangement direction from the left end to the right end of the box body. The fan located at the left end is arranged at the left end of the corresponding air duct, and the fan located at the right end is arranged at the right end of the corresponding air duct.

[0016] Among them, the axial direction of the second air outlet is perpendicular to the axial direction of the second air inlet.

[0017] In some embodiments, the air duct includes a first sub-air duct and a second sub-air duct that both extend along the arrangement direction from the left end to the right end of the box body. The first sub-air duct and the second sub-air duct communicate with each other. The second air inlet is provided on the first sub-air duct, and the second air outlet is provided on the second sub-air duct.

[0018] Among them, the cross-sectional area of the first sub-air duct is larger than the cross-sectional area of the second sub-air duct.

[0019] In some embodiments, the range hood further includes an oil storage assembly, which is arranged at the front end of the box body and is used for collecting the oil stains on the smoke inlet net.

[0020] In some embodiments, the range hood further includes a frame assembly, which has a smoke guide cavity. The frame assembly is connected to the box body, and the smoke guide cavity communicates with the diversion cavity.

[0021] In some embodiments of the present application, the range hood includes a box body, a smoke collecting plate, and an air curtain mechanism. Among them, the box body has a front end facing the user and a rear end disposed opposite to the front end; the smoke collecting plate is disposed on the box body and cooperates with the box body to form a diversion cavity. In the direction from the front end to the rear end of the box body, the distance between the side of the smoke collecting plate close to the front end and the stove top surface is less than the distance between the side of the smoke collecting plate close to the rear end and the stove top surface. The smoke inlet of the smoke collecting plate is provided with two layers of smoke inlet nets, and a diversion space is formed by the interval between the two layers of smoke inlet nets; the air curtain mechanism is disposed at the front end of the box body, and its air outlet is communicated with the diversion space. For the above-mentioned range hood, on the one hand, the relative setting of the positions between the smoke collecting plate and the box body makes the distance between the side of the smoke collecting plate close to the user and the stove top surface less than the distance between the side of the smoke collecting plate far from the user and the stove top surface, which can gather the cooking fumes towards the rear end of the box body, that is, the direction away from the user, so that the rear end of the box body is the main smoke inlet area, reducing the contact between the cooking fumes and the user. On the other hand, an air curtain mechanism is provided at the front end of the box body, and the air outlet of the air curtain mechanism is communicated with the diversion space between the two layers of smoke inlet nets, enabling the air curtain mechanism to blow air from the front end of the box body towards the rear end when working, which can guide the cooking fumes at the front end to gather towards the rear end, further improving the problem of smoke escaping from the front end and further reducing the contact between the cooking fumes and the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them: Figure 1 is a schematic cross-sectional view of a range hood in some embodiments of the present application; Figure 2 is Figure 1 the schematic structural view when the box body and the oil storage component are completely separated in; Figure 3 is another schematic cross-sectional view of a range hood in some embodiments of the present application; Figure 4 is a schematic side view of a range hood in some embodiments of the present application; Figure 5 is a schematic structural view of the air curtain mechanism in some embodiments of the present application; Figure 6 is a schematic cross-sectional view of the air duct in some embodiments of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0024] According to some embodiments of the present application, referring to Figure 1 , Figure 1 is a schematic cross-sectional view of a range hood in some embodiments of the present application. As Figure 1 shown, the range hood 10 includes a box body 101, a smoke collecting plate 102 and an air curtain mechanism 103.

[0025] Among them, the box body 101 has a front end 1011 facing the user and a rear end 1012 disposed opposite to the front end 1011.

[0026] The smoke collecting plate 102 is disposed on the box body 101 and cooperates with the box body 101 to form a diversion cavity O1. In the direction from the front end 1011 to the rear end 1012 of the box body 101, the distance between the side of the smoke collecting plate 102 close to the front end 1011 and the stove top surface is less than the distance between the side of the smoke collecting plate 102 close to the rear end 1012 and the stove top surface. A two-layer smoke inlet net 1021 is provided at the smoke inlet of the smoke collecting plate 102, and a diversion space O2 is formed by the interval between the two-layer smoke inlet nets 1021.

[0027] The air curtain mechanism 103 is disposed at the front end 1011 of the box body 101, and the air outlet 1031 of the air curtain mechanism 103 is communicated with the diversion space O2.

[0028] Among them, when the amount of oil fume is large or the air intake volume of the range hood 10 is small, the oil fume that is not sucked away in time will quickly rise to the vicinity of the front end of the box body 101, and then leak into the room, causing air pollution. However, in the present application, the air curtain airflow formed by the air blown by the air curtain mechanism 103 can timely carry the rising or leaking oil fume from the diversion space O2 into the diversion cavity O1, avoiding oil fume leakage and improving the smoking effect of the range hood 10.

[0029] In addition, the air outlet 1031 of the air curtain mechanism 103 is disposed between the two-layer smoke inlet nets 1021. The air curtain airflow formed by the air blown by the air curtain mechanism 103 can condense the oil stains, and then intercept the oil stains on the smoke inlet net 1021, reducing the pollution of the interior of the range hood 10 by the oil stains, and preventing the oil stains from dripping into the pot or the stove top surface.

[0030] In some embodiments, when the range hood 10 is in the installed state or the use state, the front end 1011 of the box body 101 faces the user, and the rear end 1012 of the box body 101 is disposed against the installation surface (such as a wall).

[0031] In some embodiments, the cabinet 101 may include a front panel, a back panel, and side panels. One end of the side panel is connected to the front panel, and the other end of the side panel is connected to the back panel. The front panel, the back panel, and the side panels surround the smoke collecting plate 102 to jointly form a diversion cavity O1 with the smoke collecting plate 102.

[0032] In some embodiments, the diversion cavity O1 refers to the space for flue gas flow formed by the cooperation of the side of the smoke collecting plate 102 away from the cooking surface and the cabinet 101 when the smoke collecting plate 102 is arranged on the cabinet 101.

[0033] Among them, the volume of the diversion cavity O1 is related to the installation position of the smoke collecting plate 102 on the cabinet 101. The relative position between the smoke collecting plate 102 and the cabinet 101 can be set according to actual needs to provide different volumes of the diversion cavity O1, and thus provide the range hood 10 with different smoke collecting capabilities.

[0034] In some embodiments, the relative position of the two layers of smoke inlet meshes 1021 at the smoke inlet of the smoke collecting plate 102 can be set according to the actual situation. The relative position of the two layers of smoke inlet meshes 1021 at the smoke inlet of the smoke collecting plate 102 determines the volume of the diversion space O2.

[0035] In some embodiments, the structure of the two layers of smoke inlet meshes 1021 can be set according to the actual smoke collecting requirements, so that the structures of the two layers of smoke inlet meshes 1021 are the same or different, which is not limited here.

[0036] In some embodiments, as Figure 1 shown, the two layers of smoke inlet meshes 1021 are arranged opposite and parallel to each other, and one layer of the smoke inlet mesh 1021 faces the cooking surface. When the range hood 10 is working, the cooking fumes will pass through the two layers of smoke inlet meshes 1021 in sequence. The two layers of parallel smoke inlet meshes 1021 can prevent relatively large foreign objects from being sucked into the interior of the range hood 10, and can reduce the pollution of the interior of the range hood 10 by oil stains, improving the filtering effect of the smoke inlet meshes 1021 on the cooking fumes.

[0037] At this time, the diversion cavity O1 refers to the space for flue gas flow formed by the cooperation of the side of the layer of the smoke inlet mesh 1021 away from the cooking surface in the two layers of parallel smoke inlet meshes 1021 and away from the layer of the smoke inlet mesh 1021 close to the cooking surface and the cabinet 101.

[0038] The volume of the diversion cavity O1 is related to the installation position of the layer of the smoke inlet mesh 1021 away from the cooking surface on the cabinet 101. The relative position between the two layers of smoke inlet meshes 1021 and the cabinet 101 can be set according to actual needs to provide different volumes of the diversion cavity O1, and thus provide the range hood 10 with different smoke collecting capabilities.

[0039] In some embodiments, the two layers of smoke inlet nets 1021 are arranged opposite and parallel to each other. After the flue gas enters from one layer of smoke inlet net 1021 facing the cooking surface, it is stored in the diversion space O2, and then enters the diversion cavity O1 from the diversion space O2 through the other layer of smoke inlet net 1021. Since the air outlet 1031 of the air curtain mechanism 103 is communicated with the diversion space O2, the air blown out from the air outlet 1031 of the air curtain mechanism 103 blows along the front end 1011 of the box body 101 to the rear end 1012 of the box body 101 in the diversion space O2, which can guide the oil fume located at the front end 1011 to gather towards the rear end 1012, thereby improving the problem of oil fume escaping at the front end 1011 and further reducing the contact between the oil fume and the user.

[0040] In other embodiments, one layer of the two layers of smoke inlet nets 1021 is inclined relative to the other layer of smoke inlet net 1021, and there is an included angle between the two layers of smoke inlet nets 1021. The included angle is an acute angle or an obtuse angle, and the oil fume passes through at least one layer of the smoke inlet nets 1021.

[0041] In some embodiments, the smoke collecting plate 102 is inclined, specifically: the distance between the side of the smoke collecting plate 102 close to the front end 1011 and the cooking surface is less than the distance between the side of the smoke collecting plate 102 close to the rear end 1012 and the cooking surface. At this time, the included angle between the side of the smoke collecting plate 102 close to the rear end 1012 and the installation surface is an acute angle, and a triangular area can be formed between the smoke collecting plate 102 and the installation surface for collecting smoke.

[0042] When the range hood 10 is working, most of the oil fume converges towards the side of the smoke collecting plate 102 close to the rear end 1012 of the box body 101, that is, towards the triangular area. On the one hand, most of the oil fume can be far away from the front end 1011 of the box body 101, that is, far away from the user, which can reduce the contact between the oil fume and the user. On the other hand, after most of the flue gas converges in the triangular area, it can pass through the diversion space O2 and the diversion cavity O1 in sequence, which can reduce the oil fume escaping at the front end 1011 and further reduce the contact between the flue gas and the user.

[0043] In some embodiments, the two layers of parallel smoke inlet nets 1021 are respectively inclined, specifically: the distance between the side of the two layers of smoke inlet nets 1021 close to the front end 1011 and the cooking surface is less than the distance between the side of the two layers of smoke inlet nets 1021 close to the rear end 1012 and the cooking surface. At this time, the included angle between each smoke inlet net 1021 of the two layers of smoke inlet nets 1021 and the installation surface is an acute angle, and a triangular area is formed between the layer of smoke inlet net 1021 facing the cooking surface of the two layers of smoke inlet nets 1021 and the installation surface for collecting smoke.

[0044] When the range hood 10 is working, most of the oil fume converges towards the side of the layer of smoke inlet net 1021 facing the cooking surface close to the rear end 1012 of the box body 101, that is, towards the triangular area.

[0045] In some embodiments, when the two layers of smoke inlet nets 1021 are arranged in parallel, in the direction from the front end 1011 to the rear end 1012 of the box body 101, the distance between each smoke inlet net 1021 in the two layers of smoke inlet nets 1021 and the cooking surface linearly increases, that is, gradually increases. When the range hood 10 works, most of the oil fumes will move away from the front end 1011 of the box body 101 and enter the diversion space O2 from one side of the smoke inlet net 1021 facing the cooking surface and close to the rear end 1012 of the box body 101.

[0046] In some embodiments, when the two layers of smoke inlet nets 1021 are arranged in parallel, in the direction from the front end 1011 to the rear end 1012 of the box body 101, the distance between each smoke inlet net 1021 in the two layers of smoke inlet nets 1021 and the cooking surface does not linearly increase, that is, there are increases and decreases, but the overall trend is an increase. When the range hood 10 works, most of the oil fumes will move away from the front end 1011 of the box body 101 and enter the diversion space O2 from one side of the smoke inlet net 1021 facing the cooking surface and close to the rear end 1012 of the box body 101.

[0047] It should be noted that, compared with the setting method in which the distance between the smoke inlet net 1021 and the cooking surface linearly increases, the smoke collection effect achieved by the non-linear increase in the distance between the smoke inlet net 1021 and the cooking surface is relatively poor.

[0048] In some embodiments, as Figure 1 and Figure 2 shown, Figure 2 is Figure 1 a schematic structural diagram when the box body and the oil storage component are completely separated in

[0049] The range hood 10 further includes an oil storage component 104. The oil storage component 104 is arranged at the front end 1011 of the box body 101. The oil storage component 104 is located below the smoke inlet net 1021. The oil storage component 104 is used to collect the oil stains on the smoke inlet net 1021.

[0050] Since the front end 1011 of the box body 101 faces the user, arranging the oil storage component 104 at the front end 1011 of the box body 101 facilitates the user to disassemble or install the oil storage component 104.

[0051] Furthermore, compared with the method of arranging the oil storage component 104 at the rear end 1012 of the box body 101 in the related art, the oil storage component 104 of the present application is closer to the user, which can reduce the obstacles encountered by the user when disassembling or installing the oil storage component 104 and reduce the possibility that the user is soiled by the oil stains on the range hood 10 during installation or disassembly.

[0052] In some embodiments, the entire range hood 10 can be hidden inside the cabinet, that is, the front panel, side panels, and back panel of the range hood 10 are all hidden inside the cabinet, and only the oil storage assembly 104 is retained outside, facilitating the user to remove the oil storage assembly 104 for the operation of pouring out waste oil.

[0053] Optionally, in addition to making the oil storage assembly 104 a pull-out type, the oil storage assembly 104 can also be made a lifting type. Whether it is a pull-out oil storage assembly 104 or a lifting oil storage assembly 104, the entire range hood 10 is completely embedded in the cabinet, and when the oil storage assembly 104 needs to be maintained, the oil storage assembly 104 is pulled out or lowered, which can improve the cleanliness of the kitchen.

[0054] In some embodiments, as Figure 1 and Figure 2 shown, the oil storage assembly 104 includes an oil cup 1041, and the oil cup 1041 can be used to collect the oil stains of the smoke inlet net 1021. Among them, the shape, size, quantity, etc. of the oil cup 1041 can be determined according to the actual situation, and there is no limitation here.

[0055] In some embodiments, as Figure 1 shown, one side of the smoke inlet net 1021 close to the front end 1011 of the cabinet body 101 is opposite to the opening of the oil cup 1041, and the oil stains on the smoke inlet net 1021 can flow to one side of the smoke inlet net 1021 close to the front end 1011 of the cabinet body 101, and then flow into the oil cup 1041.

[0056] In some embodiments, as Figure 1 shown, the cross-section of the oil cup 1041 is a right trapezoid. The oil stains flowing down from the smoke inlet net 1021 first contact one side surface of the oil cup 1041. Compared with the way of directly contacting the bottom surface of the oil cup 1041, when the oil stains first contact the side surface of the oil cup 1041 and the side surface of the oil cup 1041 is inclined, it can play a buffering role for the oil stains, reducing the pollution caused by the reverse sputtering of the oil stains to the smoke inlet net 1021 or other components of the range hood 10.

[0057] In some embodiments, as Figure 1 and Figure 2 shown, the cabinet body 101 includes a receiving groove O3, and the receiving groove O3 is provided at the front end 1011 of the cabinet body 101. The oil storage assembly 104 is arranged in the receiving groove O3. The oil storage assembly 104 includes a panel 1042, and the panel 1042 is located at the front end of the oil cup 1041. When the oil storage assembly 104 is assembled in the receiving groove O3 of the cabinet body 101, the side of the panel 1042 away from the oil cup 1041 is flush with the front end face of the cabinet body 101, which can realize the hiding of the oil storage assembly 104 and improve the overall aesthetics of the range hood 10.

[0058] In some embodiments, the oil cup 1041 and the panel 1042 are made of a transparent material. The oil storage assembly 104 is disposed at the front end 1011 of the box body 101, which facilitates the user to observe the oil stains collected in the oil cup 1041 and determine whether to replace or clean the oil storage assembly 104.

[0059] In some embodiments, as Figure 1 and Figure 2 shown, the range hood 10 further includes a frame assembly 105. The frame assembly 105 has a smoke guide cavity O4. The frame assembly 105 is connected to the box body 101, and the smoke guide cavity O4 is communicated with the diversion cavity O1.

[0060] Wherein, the frame assembly 105 and the box body 101 are integrally formed or detachably connected. When the frame assembly 105 and the box body 101 are detachably connected, the frame assembly 105 is directly connected to the box body 101, or the frame assembly 105 is connected to the box body 101 through other structures.

[0061] In some embodiments, as Figure 1 shown, the frame assembly 105 includes a frame 1051 and a fan assembly 1052. The frame 1051 is provided with a smoke guide cavity O4, and the fan assembly 1052 is disposed within the frame 1051.

[0062] Wherein, the fan assembly 1052 includes a fan and a housing.

[0063] In some embodiments, as Figure 1 and Figure 2 shown, the range hood 10 further includes an electronic control module 106. The electronic control module 106 is disposed on a side of the box body 101 away from the stove top surface. The electronic control module 106 is electrically connected to the fan assembly 1052, the fan, and the air curtain mechanism 103 respectively, for controlling the operation of the range hood 10.

[0064] In some embodiments, the range hood 10 further includes a check valve (not shown in the figure). The check valve is disposed on a side of the frame assembly 105 away from the box body 101, and the check valve is connected to the air outlet of the fan assembly 1052.

[0065] Wherein, after the flue gas enters the diversion cavity O1 from the diversion space O2, since the smoke guide cavity O4 is communicated with the diversion cavity O1, at this time, the flue gas can enter the smoke guide cavity O4 from the diversion cavity O1, and the flue gas in the smoke guide cavity O4 is discharged through the check valve under the action of the fan assembly 1052.

[0066] In some embodiments, as Figure 1 and Figure 2 shown, the range hood 10 further includes an exhaust pipe 107. The exhaust pipe 107 is communicated with the check valve. The exhaust pipe 107 can gather and discharge the flue gas discharged from the check valve to avoid smoke leakage.

[0067] In an application scenario, when the range hood 10 is operating, the flue gas first passes through the layer of the smoke inlet net 1021 facing the cooking surface among the two layers of smoke inlet nets 1021. The air curtain mechanism 103 operates, and an air curtain can be formed in the diversion space O2 between the two layers of smoke inlet nets 1021. The flue gas enters the diversion cavity O1 through the other layer of smoke inlet net 1021. Since the diversion cavity O1 is communicated with the smoke guide cavity O4, the flue gas can enter the smoke guide cavity O4 from the diversion cavity O1 under the action of the fan assembly 1052 and is discharged through the check valve and the exhaust pipe 107.

[0068] Compared with the related art, the range hood 10 provided in some embodiments of the present application does not need to be provided with an opening and closing plate, which can reduce the thickness of the box body 101, increase the area of the negative pressure area, and improve the smoking effect.

[0069] In some embodiments, as Figure 1 shown, the range hood 10 further includes a partition plate 108. The partition plate 108 is arranged in the box body 101. The partition plate 108 is at least used to divide the diversion cavity O1 into a first sub-cavity and a second sub-cavity arranged in the direction from the front end 1011 to the rear end 1012 of the box body 101, and the first sub-cavity is arranged close to the rear end 1012 of the box body 101, and the second sub-cavity is arranged close to the front end 1011 of the box body 101. Among them, when the range hood 10 is operating, most of the flue gas enters the first sub-cavity.

[0070] According to some embodiments of the present application, referring to Figure 3 , Figure 3 is another cross-sectional schematic diagram of the range hood in some embodiments of the present application. As Figure 3 shown, at least one layer of the smoke inlet net 1021 is provided with at least one first air inlet structure 201 and at least one second air inlet structure 202. The first air inlet structure 201 is arranged close to the front end 1011 of the box body 101, and the second air inlet structure 202 is arranged close to the rear end 1012 of the box body 101. The first air inlet structure 201 and the second air inlet structure 202 are arranged at intervals.

[0071] It can be understood that when the first air inlet structure 201 and the second air inlet structure 202 are arranged at intervals, the isolation of the oil fume can be realized to isolate the flue gas entering from the air inlets of the first air inlet structure 201 and the second air inlet structure 202, and avoid the rising flue gas gathered near the air inlet of the second air inlet structure 202 from entering the air inlet of the first air inlet structure 201, thereby reducing the contact between the oil fume and the user.

[0072] In some embodiments, the inlet area of the first air inlet structure 201 is smaller than that of the second air inlet structure 202. Since the second air inlet structure 202 is close to the rear end 1012 of the cabinet 101, when the inlet area of the second air inlet structure 202 is larger than that of the first air inlet structure 201, the air inlet area of the flue gas gathered in the triangular area between the smoke collecting plate 102 and the rear end 1012 of the cabinet 101 passing through the second air inlet structure 202 can be increased, so that the second air inlet structure 202 can cover more flue gas relative to the first air inlet structure 201, reduce the volume of flue gas passing through the air inlet of the first air inlet structure 201, and achieve that most of the flue gas is inhaled by the second air inlet structure 202 farther away from the user, and the remaining small part of the flue gas is inhaled by the first air inlet structure 201 close to the user. This can not only improve the smoke collecting effect of the cabinet 101, but also reduce or avoid the dispersion of the flue gas towards the front end 1011 side of the cabinet 101, thereby improving or avoiding problems such as the airflow hitting the user, and helping to enhance the user experience.

[0073] In some embodiments, the two layers of smoke inlet meshes 1021 are arranged in parallel. At least one first air inlet structure 201 and at least one second air inlet structure 202 are provided on the layer of smoke inlet mesh 1021 far from the cooking surface. A third air inlet structure is provided on the layer of smoke inlet mesh 1021 close to the cooking surface, and the air inlet area of the air inlet of the third air inlet structure is larger than the air inlet areas of the air inlets of the first air inlet structure 201 and the second air inlet structure 202. At this time, the layer of smoke inlet mesh 1021 close to the cooking surface is a coarse filter mesh, and the layer of smoke inlet mesh 1021 far from the cooking surface is a fine filter mesh. Among them, the third air inlet structure is used to filter large particle impurities, and the first air inlet structure 201 and the second air inlet structure 202 are used to filter tiny particles, so as to achieve hierarchical filtration according to the size of the impurities, and improve the filtration efficiency and filtration effect of the smoke inlet mesh 1021.

[0074] In some embodiments, the layer of smoke inlet mesh 1021 close to the cooking surface is a metal smoke inlet mesh, and the layer of smoke inlet mesh 1021 far from the cooking surface is an activated carbon smoke inlet mesh. The metal smoke inlet mesh can intercept visible impurities such as grease and dust. The activated carbon in the activated carbon smoke inlet mesh has a pore structure and can adsorb harmful gases and odors in the cooking fumes, so that the smoke inlet mesh 1021 can filter visible impurities and invisible substances in the cooking fumes, effectively improve the filtration effect of the smoke inlet mesh 1021, and thus better improve the kitchen environment.

[0075] In other embodiments, the layer of smoke inlet mesh 1021 close to the cooking surface is an electrostatic dust removal smoke inlet mesh, and the layer of smoke inlet mesh 1021 far from the cooking surface is an activated carbon filter smoke inlet mesh. The electrostatic dust removal smoke inlet mesh can adsorb impurities such as grease and dust through the action of electrostatic adsorption, and cooperate with the activated carbon filter smoke inlet mesh to improve the filtration effect of the smoke inlet mesh 1021.

[0076] When the range hood 10 is operating, the flue gas first passes through the layer of air intake net 1021 facing the cooking surface and enters the diversion space O2. The flue gas converging at the rear end 1012 of the cabinet 101 in the diversion space O2 is guided by the air curtain airflow formed by the air blown by the air curtain mechanism 103 to the vicinity of the second air intake structure 202 of the layer of air intake net 1021 away from the cooking surface, and enters the diversion cavity O1 and the smoke guide cavity O4 through the second air intake structure 202. The flue gas in the smoke guide cavity O4 is discharged from the range hood 10 under the action of the fan assembly 1052.

[0077] In some embodiments, the two layers of air intake nets 1021 are arranged in parallel, and each air intake net 1021 in the two layers of air intake nets 1021 is provided with at least one first air intake structure 201 and at least one second air intake structure 202.

[0078] When the range hood 10 is operating, the flue gas converging at the rear end 1012 of the cabinet 101 is guided by the air curtain airflow formed by the air blown by the air curtain mechanism 103 to the vicinity of the second air intake structure 202 of the layer of air intake net 1021 facing the cooking surface, so as to enter the diversion space O2 through the second air intake structure 202. The flue gas converging at the rear end 1012 of the cabinet 101 in the diversion space O2 is guided by the air curtain airflow formed by the air blown by the air curtain mechanism 103 to the vicinity of the second air intake structure 202 of the layer of air intake net 1021 away from the cooking surface, and enters the diversion cavity O1 and the smoke guide cavity O4 through the second air intake structure 202. The flue gas in the smoke guide cavity O4 is discharged from the range hood 10 under the action of the fan assembly 1052.

[0079] Wherein, the number of the first air intake structure 201 and the second air intake structure 202 provided on the air intake net 1021 can be determined according to the actual situation. For example, the air intake net 1021 is provided with one first air intake structure 201 and one second air intake structure 202. The air intake net 1021 is provided with two first air intake structures 201 and two second air intake structures 202.

[0080] Wherein, the number of the first air intake structure 201 and the second air intake structure 202 provided on the air intake net 1021 is the same or different. For example, the air intake net 1021 is provided with one first air intake structure 201 and two second air intake structures 202. The air intake net 1021 is provided with two first air intake structures 201 and one second air intake structure 202.

[0081] Wherein, the sizes of the first air intake structure 201 and the second air intake structure 202 are the same or different. The difference in size can be reflected in aspects such as length, width, and air inlet area.

[0082] In some embodiments, such as Figure 3As shown, each first air inlet structure 201 includes a plurality of air inlets. The number, area, etc. of the air inlets in each first air inlet structure 201 can be determined according to the actual situation.

[0083] It can be understood that the first air inlet structure 201 and the second air inlet structure 202 can separate the flue gas into multiple independent small flue gases, which can improve the orderliness of the flue gas and reduce the risks such as turbulence generated by the disordered collision of the flue gas. It can not only suppress the generation of noise and improve the silent effect of the range hood 10, but also reduce the flow resistance of the flue gas, so that the energy consumption of the range hood 10 is reduced.

[0084] In some embodiments, as Figure 3 shown, each second air inlet structure 202 includes a plurality of air inlets. The number, area, etc. of the air inlets in each second air inlet structure 202 can be determined according to the actual situation.

[0085] In some embodiments, as Figure 3 shown, the smoke inlet net 1021 is provided with two first air inlet structures 201 and two second air inlet structures 202.

[0086] Among them, the two second air inlet structures 202 and the two first air inlet structures 201 are arranged at intervals along the arrangement direction from the front end 1011 to the rear end 1012 of the box body 101.

[0087] The two second air inlet structures 202 and the two first air inlet structures 201 are arranged at intervals along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0088] The two second air inlet structures 202 are arranged at intervals along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0089] The two first air inlet structures 201 are arranged at intervals along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0090] At this time, the interval regions between the two second air inlet structures 202, the interval regions between the two first air inlet structures 201, and the interval regions between the second air inlet structure 202 and the corresponding first air inlet structure 201 are communicated to form a cross-shaped wind blocking region.

[0091] It can be understood that the existing stove tops are usually provided with multiple stoves. The left-right arrangement of the two second air inlet structures 202 and the two first air inlet structures 201 can guide the flue gas to the left end 1013 and the right end 1014, and the front-back arrangement of the second air inlet structure 202 and the first air inlet structure 201 can guide the flue gas from the front end 1011 to the rear end 1012, so that the range hood 10 can better absorb the oil fume and improve the smoke collection effect of the range hood 10.

[0092] Among them, the size of the interval area between the two second air inlet structures 202 can be determined according to the actual situation. The size of the interval area between the two first air inlet structures 201 can be determined according to the actual situation. The size of the interval area between the second air inlet structure 202 and the corresponding first air inlet structure 201 can be determined according to the actual situation, and there is no limitation here.

[0093] For example, the size of the interval area between the two second air inlet structures 202 is the same as the size of the interval area between the two first air inlet structures 201.

[0094] In some embodiments, the wind blown out from the air outlet 1031 of the air curtain mechanism 103 is parallel to the two layers of smoke inlet nets 1021 respectively. It can prevent the wind blown out from the air outlet 1031 from hitting the smoke inlet net 1021 and affecting the formation of the air curtain.

[0095] It should be noted that since the air curtain mechanism 103 is arranged at the front end 1011 of the box body 101, when the air curtain mechanism 103 is working, the wind blown out from the air outlet 1031 of the air curtain mechanism 103 blows from the front end 1011 of the box body 101 to the rear end 1012. When the first air inlet structure 201 is arranged close to the front end 1011 and the second air inlet structure 202 is arranged close to the rear end 1012, the wind blown out from the air outlet 1031 of the air curtain mechanism 103 blows along the arrangement direction from the first air inlet structure 201 to the second air inlet structure 202.

[0096] Since the air outlet 1031 of the air curtain mechanism 103 is close to the first air inlet structure 201, the air flow near the first air inlet structure 201 is stronger, the air flow above the second air inlet structure 202 is weaker, and there is a difference in air pressure near the first air inlet structure 201 and the second air inlet structure 202, there is a pressure difference, which can guide most of the flue gas to pass through the air inlet of the second air inlet structure 202 and reduce the volume of flue gas passing through the air inlet of the first air inlet structure 201.

[0097] Since the wind blown out from the air outlet 1031 gradually weakens in the direction from the front end 1011 to the rear end 1012 of the box body 101, and the second air inlet structure 202 is far from the air outlet 1031, under the action of air resistance and the like, the wind blown out from the air outlet 1031 will not reverse and rush towards the stove top, kitchen utensils or the user, reducing the pollution of the stove top and / or kitchen utensils by oil stains and reducing the contact between the cooking fumes and the user.

[0098] In some embodiments, the air curtain mechanism 103 includes at least one air curtain assembly 1032. Among them, the number of the air curtain assemblies 1032 can be determined according to the number of the first air inlet structures 201 and / or the second air inlet structures 202, or according to the size of the first air inlet structures 201 and / or the second air inlet structures 202.

[0099] In an application scenario, seeFigure 3 and Figure 4 , Figure 4 is a side view schematic diagram of a range hood in some embodiments of the present application. As Figure 3 and Figure 4 shown, the air curtain mechanism 103 includes two air curtain components 1032, and these two air curtain components 1032 are arranged at intervals along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0100] Specifically, these two air curtain components 1032 are arranged at the front end 1011 of the box body 101 and are arranged on both sides of the smoke inlet net 1021.

[0101] Compared with the related art, in some embodiments of the present application, the two-layer smoke inlet nets 1021 at the smoke inlet part of the smoke collecting plate 102 arranged at the front end 1011 of the box body 101 of the range hood 10 are of a cross-shaped smoke inlet structure, and the intake area of the air inlets on the front and rear sides of the cross-shaped smoke inlet structure can be reasonably divided, so as to realize the division of the intake ratio of the front and rear sides of the cross-shaped smoke inlet structure, and the smoking effect can be guaranteed.

[0102] According to some embodiments of the present application, referring to Figures 3 to 5 , Figure 5 is a schematic structural diagram of the air curtain mechanism in some embodiments of the present application. As Figures 3 to 5 shown, the air curtain mechanism 103 includes two air curtain components 1032, and each air curtain component 1032 includes a fan 301 and an air duct 302.

[0103] Among them, the fan 301 includes a first air inlet 3011 and a first air outlet 3012. The air duct 302 includes a second air inlet 3021 and a second air outlet 3022, the second air inlet 3021 is connected to the first air outlet 3012, and the second air outlet 3022 serves as the air outlet 1031 of the air curtain component 1032 and is communicated with the diversion space O2.

[0104] It can be understood that the direct connection between the second air inlet 3021 and the first air outlet 3012 can reduce the path of the air curtain airflow formed by the air curtain component 1032, and there is no need to additionally provide a connecting pipeline or a fixing device, which simplifies the structure of the air curtain mechanism 103.

[0105] In some embodiments, the first air inlet 3011 of the fan 301 is communicated with the outside of the range hood 10.

[0106] In some embodiments, as Figure 3 and Figure 5 shown, the air duct 302 extends along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0107] The blower 301 located at the left end 1013 of the box body 101 is provided at the left end of the corresponding air duct 302, and the blower 301 located at the right end 1014 of the box body 101 is provided at the right end of the corresponding air duct 302.

[0108] In some embodiments, the axial direction of the second air outlet 3022 is perpendicular to the axial direction of the second air inlet 3021.

[0109] In some embodiments, the axial direction of the second air outlet 3022 is parallel to the two-layer smoke inlet net 1021 respectively.

[0110] In some embodiments, refer to Figure 1 and Figure 6 , Figure 6 is a schematic cross-sectional view of the air duct in some embodiments of the present application. As Figure 1 and Figure 6 shown, the air duct 302 includes a first sub-air duct 3023 and a second sub-air duct 3024.

[0111] Among them, both the first sub-air duct 3023 and the second sub-air duct 3024 extend along the arrangement direction from the left end 1013 to the right end 1014 of the box body 101.

[0112] The first sub-air duct 3023 and the second sub-air duct 3024 are connected. The first sub-air duct 3023 is provided with a second air inlet 3021, and the second sub-air duct 3024 is provided with a second air outlet 3022.

[0113] In some embodiments, the air blown out from the first air outlet 3012 of the blower 301 blows into the diversion space O2 through the first sub-air duct 3023 and the second sub-air duct 3024. In order to successfully form an air curtain, it is required that the cross-sectional area of the first sub-air duct 3023 is larger than the cross-sectional area of the second sub-air duct 3024, so as to prevent the air curtain airflow formed by the air blown out from the second sub-air duct 3024 from diffusing too much, so that after the air blown out from the first air outlet 3012 enters the second sub-air duct 3024 from the first sub-air duct 3023, the wind pressure will increase.

[0114] Moreover, the cross-sectional area of the first sub-air duct 3023 being larger than the cross-sectional area of the second sub-air duct 3024 can reduce the entry of flue gas from the second sub-air duct 3024, so as to reduce the pollution of the blower 301 and the air duct 302 of the air curtain mechanism 103, and prevent the air curtain mechanism 103 from reducing its service life due to being contaminated by oil stains.

[0115] In some embodiments, the length of the first sub-air duct 3023 is greater than the length of the second sub-air duct 3024. The air blown out from the first air outlet 3012 of the blower 301 enters the diversion space O2 after passing through the first sub-air duct 3023 and the second sub-air duct 3024 in sequence.

[0116] In some embodiments, asFigure 6 As shown, each air duct 302 includes a first side plate 401, a second side plate 402, and a top plate 403. The first side plate 401, the second side plate 402, and the top plate 403 are connected to form a first sub-air duct 3023 and a second sub-air duct 3024. The first side plate 401 and the top plate 403 cooperate to form a second air inlet 3021 of the air duct 302, and the second side plate 402 and the first side plate 401 cooperate to form a second air outlet 3022 of the air duct 302.

[0117] In some embodiments, the first side plate 401 is an arc-shaped plate, and the second side plate 402 is a right-angled plate.

[0118] In some embodiments, the first side plate 401 includes a first sub-plate 4011 and a second sub-plate 4012. One end of the first sub-plate 4011 is connected to the top plate 403, the other end of the first sub-plate 4011 is connected to one end of the second sub-plate 4012, and the other end of the second sub-plate 4012 is connected to the first air outlet 3012 of the fan 301.

[0119] The second side plate 402 includes a third sub-plate 4021 and a fourth sub-plate 4022. One end of the third sub-plate 4021 is connected to the top plate 403, the other end of the third sub-plate 4021 is connected to one end of the fourth sub-plate 4022, and the other end of the fourth sub-plate 4022 is connected to the first air outlet 3012 of the fan 301.

[0120] Wherein, at least a part of the first sub-plate 4011, the second sub-plate 4012, and the top plate 403 cooperate to form the second air inlet 3021 of the air duct 302. The second sub-plate 4012 and the fourth sub-plate 4022 cooperate to form the second air outlet 3022 of the air duct 302.

[0121] In some embodiments, as Figure 6 shown, the first sub-plate 4011 is an arc-shaped plate, and the included angle between the first sub-plate 4011 and the second sub-plate 4012 is an obtuse angle. The included angle between the third sub-plate 4021 and the fourth sub-plate 4022 is a right angle.

[0122] In some embodiments, a third air inlet is provided at the top end of the box body 101, and the third air inlet is communicated with the first air inlet 3011.

[0123] In summary, for the range hood 10 provided in some embodiments of the present application, on the one hand, the relative setting of the position between the smoke collecting plate 102 and the box body 101 makes the distance between the side of the smoke collecting plate 102 close to the user and the cooking surface less than the distance between the side of the smoke collecting plate 102 away from the user and the cooking surface, so that the oil fume can be gathered in the direction away from the user, reducing the contact between the oil fume and the user. On the other hand, the air curtain mechanism 103 is arranged at a position on the box body 101 close to the user. When the air curtain mechanism 103 is working, it can blow air from the side close to the user to the side away from the user, strengthening the gathering effect of gathering the oil fume in the direction away from the user and further reducing the contact between the oil fume and the user.

[0124] The above is only the implementation mode of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. An oil fume suction machine, characterized in that, Including: A box body, having a front end facing the user and a rear end disposed opposite to the front end; A smoke gathering plate, disposed on the box body and cooperating with the box body to form a diversion cavity. In the direction from the front end to the rear end of the box body, the distance between the side of the smoke gathering plate close to the front end and the stove top surface is less than the distance between the side of the smoke gathering plate close to the rear end and the stove top surface. The smoke inlet of the smoke gathering plate is provided with two layers of smoke inlet nets, and a diversion space is formed by the interval between the two layers of smoke inlet nets; An air curtain mechanism, disposed at the front end of the box body, and the air outlet of the air curtain mechanism is communicated with the diversion space.

2. The range hood according to claim 1, characterized in that, The two layers of smoke inlet nets are arranged in parallel.

3. The range hood according to claim 1 or 2, characterized in that, The smoke inlet net is provided with at least one first air inlet structure and at least one second air inlet structure. The first air inlet structure is arranged close to the front end of the box body, the second air inlet structure is arranged close to the rear end of the box body, and the first air inlet structure and the second air inlet structure are arranged at intervals.

4. The range hood according to claim 3, wherein, The air inlet area of the first air inlet structure is smaller than the air inlet area of the second air inlet structure.

5. The range hood according to claim 3, characterized in that, At least one of the smoke inlet nets is provided with two of the first air inlet structures and two of the second air inlet structures; The two second air inlet structures are arranged at intervals along the arrangement direction from the left end to the right end of the box body; The two first air inlet structures are arranged at intervals along the arrangement direction from the left end to the right end of the box body; The interval areas between the two second air inlet structures, the interval areas between the two first air inlet structures, and the interval areas between the second air inlet structure and the corresponding first air inlet structure are communicated to form a cross-shaped wind shielding area.

6. The range hood according to claim 1, wherein, The air curtain mechanism includes: Two air curtain assemblies, arranged at intervals along the arrangement direction from the left end to the right end of the box body.

7. The range hood according to claim 6, wherein, The air curtain assembly includes: A fan, including a first air inlet and a first air outlet; An air duct, including a second air inlet and a second air outlet. The second air inlet is connected to the first air outlet, and the second air outlet is used as the air outlet of the air curtain assembly and is communicated with the diversion space; Wherein, a third air inlet is provided at the top end of the box body, and the third air inlet is communicated with the first air inlet.

8. The range hood according to claim 7, wherein The air duct extends along the arrangement direction from the left end to the right end of the box body; The fan located at the left end is disposed at the left end of the corresponding air duct, and the fan located at the right end is disposed at the right end of the corresponding air duct; Wherein, the axis of the second air outlet is perpendicular to the axis of the second air inlet.

9. The range hood according to claim 7, characterized in that, The air duct includes: A first sub-air duct and a second sub-air duct both extending along the arrangement direction from the left end to the right end of the box body. The first sub-air duct and the second sub-air duct are communicated. The second air inlet is provided on the first sub-air duct, and the second air outlet is provided on the second sub-air duct; The cross-sectional area of the first sub-air duct is larger than the cross-sectional area of the second sub-air duct.

10. The range hood according to claim 1, characterized in that, The range hood further includes: An oil storage assembly, disposed at the front end of the box body, and the oil storage assembly is used for collecting the oil stains on the smoke inlet net.

11. The range hood according to claim 1, characterized in that, The range hood further includes: A frame assembly, having a smoke guiding cavity. The frame assembly is connected to the box body, and the smoke guiding cavity is communicated with the diversion cavity.

Images