Range hood

Abstract

The utility model belongs to the technical field of kitchen oil treatment, and particularly relates to a range hood. The range hood comprises a smoke collecting cavity, a box body, a fan, an oil filter screen, an oil mist intercepting module, an oil cup and an oil baffle plate. The range hood sucks oil smoke through an oil smoke inlet in the lower end of the smoke collecting cavity, and the oil cup is detachably installed on the smoke collecting cavity to collect grease. The oil mist intercepting module is located between the smoke collecting cavity and the box body and comprises a rotary oil mist intercepting disc and a driving motor, the speed difference between the oil mist intercepting disc and grease particles is increased through high-speed rotation, the collision probability is improved, and grease is thrown out through the centrifugal effect. The oil baffle plate is arranged between the oil mist intercepting disc and the oil filter screen, and the oil mist intercepting disc and the oil filter screen jointly shield the oil mist intercepting disc and are respectively provided with a first air inlet and a third air inlet which are staggered to form a vertical barrier to prevent grease from dripping into a cooking area. And oil guide mechanisms are arranged on the oil baffle plate and the oil filter screen, so that the grease is conveyed into the oil cup.

Description

TECHNICAL FIELD

[0001] The utility model belongs to kitchen oil processing technical field, concretely relates to a kind of range hood. BACKGROUND

[0002] At present, kitchen has generally applied extractor hood to discharge oil fume generated during cooking, purifies indoor environment.Oil fume particles are intercepted and separated by filter screen, impeller and other components in ideal state and flow into oil cup along with air into extractor hood.But in actual work, due to the large viscosity of oil, condensation is easy to adhere to the inside of impeller, volute, and long-term not cleaning will form oil dirt, oil film, and then reduce the performance of fan, increase the probability of oil fume escape.Therefore, rotating oil mist interception disc is developed, which increases the speed difference between spoke and oil particles under high-speed rotation, and then increases the collision probability, and the oil particles are intercepted by the spoke in the spoke interception disc and are thrown out to the outer edge under the centrifugal effect, which can improve the oil fume separation efficiency of the range hood, maintain the performance of the fan at the rear end, and reduce or even eliminate the cleaning of the fan at the rear end.Compared with static filter screen, the oil fume capture efficiency is higher and oil dirt and oil film are not easy to form.For example, Chinese patent CN118293456A discloses a rotating oil mist interception disc design.The design ingeniously places the rotating oil mist interception disc between the smoke collecting cavity and the box, and realizes efficient interception of oil mist in oil fume through the rotating action of the interception disc.In this process, most of the oil is effectively thrown out and enters the oil collecting system, thereby significantly reducing the pollution of subsequent components by oil fume and improving the overall cleanliness and service life of the range hood.However, this design also faces a problem that cannot be ignored.That is, although most of the oil is successfully intercepted, a small amount of oil will adhere to the surface of the interception disc.These oils will gradually accumulate and drip under the action of gravity over time.Once these oils penetrate the air inlet of the oil filter screen and fall directly into the cooking area, such as the surface of the stove or the pot, it will not only pollute the kitchen environment, but also increase the difficulty of cleaning and greatly reduce the cooking experience and satisfaction of users.In order to solve this problem, the traditional improvement measure is to add an oil baffle between the oil mist interception disc and the oil filter screen.This method forms a barrier in the vertical direction, effectively preventing the leakage of oil and avoiding the pollution of oil to the cooking area.However, this improved technical solution also brings new problems.That is, the oil fume flow path is forced to be complicated, and the oil fume needs to bypass the oil baffle to continue to the fan.This not only increases the resistance of oil fume flow, but also causes significant loss of fluid kinetic energy, thereby affecting the overall exhaust efficiency and aerodynamic performance of the range hood.Therefore, how to ensure effective interception of oil while maintaining excellent interception performance of the range hood has become a key technical problem to be solved in the existing technology. SUMMARY

[0003] The oil smoke interceptor module of the utility model increases the speed difference with grease particle through high speed rotation of the rotating oil smoke interceptor disc, improves the collision probability, makes the grease particle be flung out to the outer edge under the centrifugal effect. The oil baffle is arranged between the oil smoke interceptor disc and the oil filter screen, forms a vertical barrier, prevents the grease from directly dropping to the cooking area.

[0004] The oil smoke interceptor module of the utility model increases the speed difference with grease particle through high speed rotation of the rotating oil smoke interceptor disc, improves the collision probability, makes the grease particle be flung out to the outer edge under the centrifugal effect. The oil baffle is arranged between the oil smoke interceptor disc and the oil filter screen, forms a vertical barrier, prevents the grease from directly dropping to the cooking area.

[0005] Preferably, the oil baffle and the oil filter screen are both inclined, the rear end of both is close to the smoke collecting cavity, and the rear end of both is lower than the front end, the oil guide mechanism is formed by the upwardly protruding flange of the upper surface of the oil baffle and the oil filter screen, and the flange guides the grease on the oil baffle and the oil filter screen into the oil cup. In the embodiment, the oil baffle and the oil filter screen are both inclined, so that the grease flows to the oil cup along the inclined surface under the action of gravity. The oil guide mechanism is formed by the flange, which guides the grease into the oil cup, reducing the residue of the grease on the oil baffle and the oil filter screen.

[0006] Preferably, the flange for guiding oil on the oil baffle includes the front flange and the rear flange arranged at the front and rear ends of the oil baffle, and the first air inlet flange arranged at the periphery of the first air inlet; the flange for guiding oil on the oil filter screen includes the front flange and the rear flange arranged at the front and rear ends of the oil filter screen, and the third air inlet flange arranged at the periphery of the third air inlet; the rear flanges of the oil baffle and the oil filter screen are further provided with oil leakage openings, and the oil baffle and the oil filter screen deliver the grease into the oil cup through the oil leakage openings. In the embodiment, the oil baffle and the oil filter screen are both provided with flanges, including the front flange, the rear flange and the air inlet flange, forming a complete oil guiding path. The oil leakage openings are arranged on the rear flanges, so that the grease can flow smoothly into the oil cup.

[0007] Preferably, the oil baffle and the oil filter screen overlap in the vertical direction, and the length of the overlap in the front-rear direction is less than or equal to the radius of the oil mist interception disc; the first air inlet and the third air inlet are both arranged in the front-rear direction, both are arranged in the left-right direction, and both are staggered. In this embodiment, the oil baffle and the oil filter screen overlap in the vertical direction, but the length of the overlap is less than or equal to the radius of the oil mist interception disc, avoiding excessive complication of the oil fume flow path. The staggered arrangement of the air inlets allows the oil fume to pass smoothly without being blocked.

[0008] Preferably, the rear flange of the oil baffle is provided with an arc-shaped avoidance groove near the motor shaft of the interception disc motor, and the lower end of the motor shaft is located in the avoidance groove and can rotate relatively. In this embodiment, the arc-shaped avoidance groove is provided on the rear flange of the oil baffle, so that the motor shaft can rotate relatively without being blocked.

[0009] Preferably, the left and right sides of the oil baffle are folded to form mounting planes, the mounting planes are provided with mounting holes, the oil mist interception module is further provided with a mounting bracket, the mounting holes and the mounting bracket are mounted by screw cooperation, and the mounting bracket is further formed with an air guide ring. The air guide ring is used to guide the oil fume to pass through the oil mist interception disc, and the oil mist interception disc is installed in the air guide ring and is arranged obliquely, and the oblique angle is adapted to the inlet of the range hood. In this embodiment, the left and right sides of the oil baffle are folded to form mounting planes, which are convenient for screw cooperation with the mounting bracket. The air guide ring guides the oil fume to pass through the oil mist interception disc, so that the oil fume can enter the fan smoothly.

[0010] Preferably, the left and right sides of the oil baffle are L-shaped and folded, the top of the L-shaped folding forms the mounting plane, and the lower end of the L-shaped folding is provided with a second air inlet, and the second air inlet communicates the oil fume inlet and the oil mist interception disc. In this embodiment, the lower end of the L-shaped folding of the oil baffle is provided with a second air inlet, so that the oil fume can enter the oil mist interception disc more smoothly.

[0011] Preferably, the mounting bracket has a folded edge around the periphery for abutting the inner wall of the cabinet, and the oil mist interception module is installed and fixed between the cabinet and the smoke collecting cavity through the folded edge of the mounting bracket. In this embodiment, the mounting bracket has a folded edge around the periphery for abutting the inner wall of the cabinet, so that the oil mist interception module can be firmly installed between the cabinet and the smoke collecting cavity.

[0012] Preferably, the upper end of the smoke collection chamber is fixedly connected to the lower end of the housing. The oil filter screen is fixedly installed at the inlet below the smoke collection chamber. The fan is installed inside the housing, with its outlet facing the exhaust port of the housing. The oil cup is detachably installed at the bottom of the smoke collection chamber to collect grease dripping from the oil mist interception plate and the oil baffle. In this embodiment, the upper end of the smoke collection chamber is fixedly connected to the lower end of the housing, the oil filter screen is fixedly installed at the inlet below the smoke collection chamber, and the fan is installed inside the housing, facing the exhaust port. This simplifies the installation process of the smoke collection chamber, housing, and fan. The detachable oil cup at the bottom of the smoke collection chamber collects grease dripping from the oil mist interception plate and the oil baffle, improving grease collection efficiency and reducing grease contamination of subsequent components. Attached Figure Description

[0013] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0014] Figure 1 This is a three-dimensional structural diagram of the oil baffle provided in an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the oil mist interception module after the oil baffle plate is installed, as provided in this embodiment of the utility model.

[0016] Figure 3 This is an exploded structural diagram of the oil mist interception module provided in this embodiment of the utility model;

[0017] Figure 4 This is a longitudinal sectional view of the range hood provided in this embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram showing the relative positions of the oil baffle and the oil filter screen provided in this embodiment of the utility model;

[0019] Figure 6 This is an exploded view of the range hood provided in this embodiment of the utility model.

[0020] Attached diagram labels: 1 - Oil baffle, 11 - First air inlet, 11a - First air outlet flange, 12 - Second air inlet, 13 - Front flange, 14 - Rear flange, 14a - Clearance groove, 15 - Oil leak, 16 - Mounting hole, 2 - Oil mist interception module, 21 - Locking nut, 22 - Oil mist interception disc, 221 - Mounting shaft hole, 23 - Mounting bracket, 231 - Air guide ring, 232 - Folded edge, 24 - Interception disc motor, 241 - Motor shaft, 3 - Oil filter screen, 31 - Third air inlet, 31a - Third air outlet flange, 4 - Fan, 5 - Smoke hood, 6 - Housing, 7 - Smoke collection chamber, 8 - Oil cup. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the following will be described in more detail with reference to the relevant drawings.

[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or a middle element can exist at the same time. The terms "mount", "one end", "the other end" and the like used herein are only for illustrative purposes.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] Please refer to Figures 1 to 6 The oil smoke machine provided by the present application is characterized in that the oil smoke machine comprises a smoke collecting cavity 7, a box body 6, a fan 4, an oil filter screen 3, an oil mist interception module 2, an oil cup 8 and an oil baffle 1. The lower end of the smoke collecting cavity 7 is provided with an oil smoke inlet. The oil cup 8 is detachably installed on the smoke collecting cavity 7. The oil mist interception module 2 is arranged between the smoke collecting cavity 7 and the box body 6. The oil mist interception module 2 comprises a rotating oil mist interception disc 22 and an interception disc motor 24 for driving the rotating oil mist interception disc 22 to rotate. The oil baffle 1 is arranged between the oil mist interception disc 22 and the oil filter screen 3. The oil mist interception disc 22 is shielded by the oil baffle 1 and the oil filter screen 3 in the vertical direction. The oil baffle 1 is provided with a first air inlet 11. The oil filter screen 3 is provided with a third air inlet 31. The third air inlet 31 is arranged in a staggered manner with the first air inlet 11. The oil filter screen 3 shields the first air inlet 11 in the vertical direction. The oil baffle 1 shields the third air inlet 31 in the vertical direction. The oil baffle 1 and the oil filter screen 3 are both provided with oil guiding mechanisms. The oil guiding mechanisms are used for conveying the oil on the oil baffle 1 and the oil filter screen 3 into the oil cup 8. The oil mist interception module 2 of the present application increases the speed difference with the oil particles through the high-speed rotation of the rotating oil mist interception disc 22, improves the collision probability, and makes the oil particles be thrown out to the outer edge under the centrifugal action. The oil baffle 1 is arranged between the oil mist interception disc 22 and the oil filter screen 3, forming a vertical barrier to prevent the oil from directly dropping into the cooking area.

[0025] As Figure 1The oil baffle 1 is composed of a middle body and two sides for installation of the folded plane and front and rear flanges, wherein the body is provided with regularly arranged first air inlets 11 on the oil blocking plane, and the oil fume can pass through the first air inlets 11 to the oil mist interception disc 22 without bypassing the oil baffle 1. Meanwhile, the flanges are stretched around the periphery of the first air inlets 11, which can guide the oil fume passing through the first air inlets 11 and form oil guiding channels between the flanges to enable the oil dropping on the oil baffle 1 to flow to the rear end and drop into the smoke collecting cavity 7. In the embodiment, the first air inlets 11 are designed as single circular groove shape and arranged horizontally at equal intervals, which facilitates the cooperation design with the third air inlets 31 of the oil filter net 3.

[0026] The two sides of the oil baffle 2 are folded twice to obtain a plane, which is provided with mounting holes 16 for cooperation with the mounting frame for screw mounting. Preferably, in order to ensure small air performance loss, it is necessary to maintain the distance between the oil baffle 1 and the oil mist interception disc 21, so that the space of the two side plates of the oil baffle 1 is large, and the second air inlets 12 are also arranged at the two side plates to assist air inlet, and the oil fume can pass through the side of the oil baffle 2 to the oil mist interception disc 22.

[0027] Meanwhile, the front flange 13 and the rear flange 14 are arranged on the front and rear sides of the oil baffle 2, respectively. The front flange 13 is mainly used for oil blocking to prevent the oil dropping on the oil baffle 1 from dropping from the front side. The rear flange 14 can guide the oil to flow to the oil leakage port 15 on the one hand and can guide the oil fume bypassing the oil baffle 1 to the oil mist interception disc 22 on the other hand. In the embodiment, in order to avoid the motor shaft 241 and avoid interference, the center of the rear flange 14 is designed as an arc-shaped avoidance groove 14a matched with the motor shaft 241. In addition, the two sides of the rear flange 14 are each provided with a notch as the oil leakage port 15, which is used for guiding the oil on the oil baffle 1 to leak out and drop into the smoke collecting cavity 7.

[0028] As shown in Figure 2 With Figure 3 The motor shaft 241 of the interception disc motor 24 passes through the air guide ring 231 from above the mounting frame 23 and is inserted into the mounting shaft hole 221 of the oil mist interception disc 22 and is locked by a locking nut 21. The interception disc motor 24 is provided with a plane which is attached to the plane of the air guide ring 231 through the upper reinforcing rib and is fixed by a screw, and is combined into the oil mist interception module 2. After assembly, the diameter of the oil mist interception disc 22 is slightly smaller than the air guide ring 231, and the whole is in the air guide ring 231, and the whole is more inclined to the oil fume inlet of the range hood. The mounting frame 23 is stretched to form the air guide ring 231, which is designed as a tapered type with a wide lower part and a narrow upper part, and is smoothly connected with the body, which is used for smooth guiding of the oil fume and oil interception by the oil mist interception disc 22. The mounting frame 23 is provided with a folded edge 232 around the whole, which is used for attachment with the inner wall of the box body 6 and installation between the box body 6 and the smoke collecting cavity 7.

[0029] The oil baffle 1 is folded twice on both sides to form a fold surface that is flush with the main body of the mounting frame 23. An installation hole 16 is provided above the fold surface for detachable screw installation with the mounting frame 23. The oil mist interception module 2 with the installed oil baffle 1 can be seen that the oil baffle 1 is more inclined relative to the oil mist interception module 2, with the front being higher and the back being lower, facilitating oil guiding to the rear for dripping under the action of gravity. When the work is completed, some oil that has not been thrown out and still remains on the oil mist interception disc 22 may drip on the oil baffle and be guided to the rear for dripping by the first air inlet 11 and the front and rear flanges and the two side plates, avoiding dripping from the oil filter screen 3 to pollute the kitchen environment and affect the user experience.

[0030] As Figure 4 With 6 As shown, a range hood is also provided, and the smoke outlet on the top of the box body 6 is opposite to the detachable installation of the smoke exhaust cover 5. The fan 4 is arranged in the box body 6, and the air outlet of the fan 6 is opposite to the installation of the box body smoke outlet. The oil cup 10 is detachably arranged at the lowermost end of the smoke collecting cavity 7. The oil filter screen 3 is arranged as a static filter screen and covers the oil fume inlet at the lower end of the smoke collecting cavity 7. The upper end of the smoke collecting cavity 7 is connected and fixed with the lower end of the box body 6. The oil mist interception module 2 is arranged and fixed between the box body 6 and the smoke collecting cavity 7 through the folded flange 232 on the side, and is arranged in an inclined manner, which is beneficial to the general use of different models. The air guiding ring 231 has a larger diameter on one side and faces the smoke inlet of the smoke collecting cavity 7, and on the other side, it faces the direction of the fan 6, so that most of the smoke gas entering the fan 6 needs to pass through the oil mist interception module 100 first, thereby protecting the performance of the rear fan.

[0031] After the range hood is installed, there is an overlapping area between the oil filter screen 3 and the oil mist interception disc 22 in the vertical direction, which may cause oil to drip from the third air inlet 31. In this case, an oil baffle is installed in the overlapping area to block the oil that may drip from the oil mist interception disc 22 and pass through the third air inlet 31. The oil fume inlet of the range hood in this embodiment is biased towards the front of the range hood, so the overlapping area between the oil filter screen 3 and the oil mist interception disc 22, and the oil baffle 1 only needs to block the front half of the oil mist interception disc 22. At the same time, in order to reduce the degree of tortuosity of the air inlet path, the first air inlets 11 are arranged on the oil baffle 1 in cooperation with the third air inlets 31 of the oil filter screen. As shown in Figure 5 The relative positions of the oil baffle 1 and the oil filter screen 3 in the range hood can be seen that each first air inlet 11 and third air inlet 31 are staggered one by one, the first air inlet 11 is opposite to the oil filtering surface of the oil filter screen 3, and the third air inlet 31 is opposite to the oil blocking surface of the oil baffle 1. In the case of avoiding oil dripping from the oil mist interception disc 22 to pass through the range hood, the overall air performance loss can be reduced. In this embodiment, the third air inlets 31 are arranged in a circular groove type and are arranged equidistantly and horizontally, and the first air inlets 11 are also arranged in a circular groove type and are arranged equidistantly and horizontally to fill the positions between the third air inlets 31, so that the oil dripping from the front of the oil mist interception disc 22 can drip on the oil baffle 1 or the oil filter screen 3 when the oil mist interception disc 22 is stopped.

[0032] The working principle of the range hood with the oil baffle 1 and the oil mist interception module 2 in the utility model is as follows: according to the oil fume concentration, the motor of the fan 4 and the interception disc motor 24 are started, and the fan impeller and the interception disc 22 are driven to rotate and work. Under the suction of the fan 4, the oil fume outside the range hood enters the smoke collecting cavity 9 through the oil filter screen 3, and at this time, a small part of oil is intercepted for the first time through the oil filter screen 3 as a static filter screen. Then, when the oil fume passes through the oil mist interception device 2, the high-speed rotating oil mist interception disc 22 cuts the oil fume, and most of the oil is intercepted, so that a large amount of oil does not enter the fan 4, the impeller and the volute of the fan 4 are not polluted, and the cleaning and output performance of the rear fan 4 are protected. The smoke after the oil is intercepted is guided by the air guide ring 231 and blocked by the box body 6, is sucked into the fan 4 and is discharged to the outside of the room from the smoke exhaust hood 5. At the same time, the oil intercepted by the interception disc 1 is thrown onto the flow guide ring 201 in the high-speed rotation of the interception disc 22, is guided to the rear of the range hood by the mounting frame 2, and due to gravity, is dropped into the smoke collecting cavity 7, and finally flows into the oil cup 8. When the range hood is turned off, the oil on the oil mist interception disc 22 that is not thrown out is dropped under the action of gravity, part of which is dropped on the upper surface of the oil baffle 1, is guided by the flanges between the first air inlets 11, the front and rear flanges and the two side plates, is guided to the oil leakage opening 15 at the rear and flows into the smoke collecting cavity 7, and the other part is dropped on the oil filter screen 3 from the first air inlets 11, is guided by the flanges around the third air inlets 31 and other flow guide devices, and the two parts of oil are gathered in the rear of the smoke collecting cavity 7 and are collected in the oil cup.

[0033] Advantages of the utility model:

[0034] (1) The oil baffle is arranged on the interception disc mounting frame and is vertically arranged between the oil mist interception disc and the oil filter screen, so that the oil drops above the oil filter screen are not dropped from the air inlets but are caught by the oil baffle and are guided to the rear end and finally flow into the oil cup. In addition, the oil baffle is more inclined to the rear relative to the oil mist interception module, is high in front and is low in rear, and gravity is utilized to guide the oil.

[0035] (2) The air inlets arranged on the plane of the oil baffle facing the oil fume direction are distributed in a one-to-one staggered manner in the vertical direction after assembly with the air inlets of the oil filter screen, specifically, the air inlets of the oil filter screen face the flat plate of the oil baffle, and the air inlets of the oil baffle face the flat plate of the oil filter screen. The air inlets are arranged in a staggered manner, so that the oil does not drop from the range hood, and the oil baffle increases the air inlets, so that the air inlet area of the oil baffle is increased, the oil fume can pass through the air inlets of the oil baffle to the interception disc, the path of the oil fume passing through the air inlets of the oil baffle to the interception disc is smoother than the path of the oil fume passing around the oil baffle to the interception disc, the resistance is smaller, and the air performance loss is smaller.

[0036] (3) The side plates on both sides of the oil baffle are used to connect the main body of the oil baffle and the installation plane, and the side air inlets are arranged above the side plates to assist air intake and further reduce the air performance loss caused by the arrangement of the oil baffle.

[0037] (4) The periphery of the air inlet of the oil baffle is stretch-formed with flanges, and the flanges form oil guiding channels to guide the oil dripping on the oil baffle. Meanwhile, the front side and the rear side of the oil baffle are provided with upwardly folded flanges, which are used to block and guide the oil on the oil baffle on one hand, and can guide the oil fume around the oil baffle to the interception disc on the other hand. In addition, a notch is arranged on the rear flange as an oil leakage hole, which is used to guide the oil on the oil baffle to drip into the smoke collection cavity and finally flow into the oil cup.

[0038] In the present application, unless specifically defined and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0039] In the description of the present application, the description of the terms "preferred embodiment", "further embodiment", "other embodiment" or "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present application and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0040] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A range hood characterized by, The oil fume extractor comprises a smoke collecting cavity, a box body, a fan, an oil filter screen, an oil mist interception module, an oil cup and an oil baffle, the lower end of the smoke collecting cavity is provided with an oil fume inlet, the oil cup is detachably installed on the smoke collecting cavity, the oil mist interception module is arranged between the smoke collecting cavity and the box body, the oil mist interception module comprises a rotating oil mist interception disc and an interception disc motor for driving the rotating oil mist interception disc to rotate, the oil baffle is arranged between the oil mist interception disc and the oil filter screen, the oil mist interception disc is shielded by both the oil baffle and the oil filter screen in the vertical direction, the oil baffle is provided with a first air inlet, the oil filter screen is provided with a third air inlet, the third air inlet is arranged in a staggered manner with the first air inlet, the oil filter screen shields the first air inlet in the vertical direction, and the oil baffle shields the third air inlet in the vertical direction; the oil baffle and the oil filter screen are both provided with oil guiding mechanisms for guiding oil on the oil baffle and the oil filter screen into the oil cup.

2. The hood according to claim 1, characterized in that, The oil baffle and the oil filter screen are both arranged in an inclined manner, the rear ends of the two are close to the smoke collecting cavity, and the rear ends of the two are lower than the front ends; the oil guiding mechanisms are formed by flanges protruding upward from the upper surfaces of the oil baffle and the oil filter screen, and the flanges guide the oil on the oil baffle and the oil filter screen into the oil cup.

3. The hood according to claim 2, characterized in that, The flanges for guiding oil on the oil baffle comprise front flanges and rear flanges arranged at the front and rear ends of the oil baffle, and comprise first air inlet flanges arranged around the first air inlet; the flanges for guiding oil on the oil filter screen comprise front flanges and rear flanges arranged at the front and rear ends of the oil filter screen, and comprise third air inlet flanges arranged around the third air inlet. The rear flanges of the oil baffle and the oil filter screen are further provided with oil leakage openings, and the two guide oil into the oil cup through the oil leakage openings.

4. The hood according to claim 3, characterized in that, The oil baffle and the oil filter screen overlap in the vertical direction, the length of the overlap of the two in the front-rear direction is less than or equal to the radius of the oil mist interception disc; the first air inlet and the third air inlet are both arranged in the front-rear direction, both are arranged in the left-right direction, and the two are arranged in a staggered manner.

5. The hood according to claim 3, characterized in that, The rear flange of the oil baffle is provided with an arc-shaped avoiding groove close to the motor shaft of the interception disc motor, and the lower end of the motor shaft is located in the avoiding groove and can rotate relatively.

6. The hood according to claim 1, characterized in that, The left and right sides of the oil baffle are folded to form mounting planes, the mounting planes are provided with mounting holes, the oil mist interception module is further provided with a mounting frame, the mounting holes and the mounting frame are mounted through screw cooperation, the mounting frame is further formed with an air guiding ring, the air guiding ring is used for guiding oil fume to pass through the oil mist interception disc, the oil mist interception disc is installed in the air guiding ring and arranged in an inclined manner, and the inclination angle is matched with the inlet of the oil fume extractor.

7. The hood according to claim 6, characterized in that The left and right sides of the oil baffle are folded in an L shape, the top of the L-shaped folding forms the mounting plane, and the lower end of the L-shaped folding is provided with a second air inlet, and the second air inlet communicates the oil fume inlet and the oil mist interception disc.

8. The hood according to claim 6, characterized in that, The mounting frame is provided with a folded edge around the frame for abutting against the inner wall of the box body, and the oil mist interception module is fixedly installed between the box body and the smoke collecting cavity through the folded edge of the mounting frame.

9. The hood according to claim 1, characterized in that, The upper end of the smoke collecting cavity is connected and fixed with the lower end of the box body, the oil filter screen is fixedly installed at the inlet below the smoke collecting cavity, the fan is arranged in the box body, the air outlet of the fan is installed opposite to the smoke exhaust port of the box body, and the oil cup is detachably arranged at the lowermost end of the smoke collecting cavity for collecting the oil dripping from the oil mist interception disc and the oil baffle.

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