CN217464572U - A frame and range hood for range hood - Google Patents

Abstract

The utility model discloses a frame and range hood for range hood, the frame is suitable for the upside of establishing the fan at range hood, and the frame is formed with the air outlet, on the oil smoke flow direction, the air outlet is suitable for the intercommunication at the downstream side of the export of fan, the lower surface of frame has an album oil water conservancy diversion face, collection oil water conservancy diversion face slope sets up in the horizontal plane, and be used for deviating the direction guide of the cylinder of predetermineeing in range hood with fluid orientation, the alignment of predetermineeing the cylinder is the regional outline of air inlet of range hood. According to the utility model discloses a frame for range hood, the frame can guide the flow of fluid, avoids on the fluid drips and leads the top of a kitchen range, improves user experience.

Description

A frame and range hood for range hood

Technical Field

The utility model belongs to the technical field of range hood and specifically relates to a frame and range hood for range hood.

Background

The range hood is an important electrical appliance for kitchen smoke discharge, and the smoke discharge effect and the oil guide capacity of the range hood are important indexes for measuring the performance of the range hood. Whether the range hood drips oil, flying oil in the use to and the accumulation volume of greasy dirt, greasy dirt clean difficult and easy degree etc. directly influence user's use experience. However, when the range hood is used for a long time, oil is easy to accumulate on the machine frame, particularly, a connecting edge exists between the box body of the range hood and the machine frame at the top of the box body, the adhesion force of the oil on the edge is small, and the oil is easy to be greatly dripped to agglomerate and drip, so that the oil drips on the cooking bench through the air inlet net of the range hood, and the use experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a frame for range hood, the frame can guide the flow of fluid, avoids on the fluid drippage leads the top of a kitchen range, improves user experience.

The utility model discloses still provide a range hood that has above-mentioned oil guide component.

According to the utility model discloses a frame for range hood, the frame is suitable for to be established the upside of range hood's fan part, just the frame is formed with the air outlet, on the oil smoke flow direction, the air outlet is suitable for the intercommunication and is in the downstream side of the export of fan part, the lower surface of frame has an album oil water conservancy diversion face, collection oil water conservancy diversion face slope sets up in the horizontal plane, and be used for deviating from the fluid orientation in the direction guide of range hood's the cylinder of predetermineeing, the directrix of predetermineeing the cylinder does the regional outline of air inlet of range hood.

According to the utility model discloses a frame for range hood, through set up an album oil water conservancy diversion face in the frame, make an album oil water conservancy diversion face slope in the horizontal plane setting, and an album oil water conservancy diversion face is used for deviating from the direction guide of the preset cylinder of range hood with fluid orientation, the alignment of preset cylinder is the outline in the air inlet region of range hood, thereby an album oil water conservancy diversion face can deviate from the direction guide in the air inlet region with fluid orientation, avoid the fluid that gathers in the frame to drip to the top of a kitchen range through the air inlet region, promoted range hood's use experience; meanwhile, the range hood with the frame in the application can be used without separately arranging an oil guide part, so that the structure of the range hood is simplified, and the cost of the range hood is reduced.

In some embodiments, the oil collecting flow guide surface comprises: the first flow guide surface is positioned on at least one side of the rack in a first direction, extends downwards in the first direction towards a direction far away from the center of the rack, and is vertical to the vertical direction.

In some embodiments, an included angle between the first diversion surface and the horizontal plane is less than or equal to 50 ° and greater than or equal to 7 °.

In some embodiments, the included angle between the first diversion surface and the horizontal plane is further equal to or less than 30 ° and equal to or greater than 10 °.

In some embodiments, the first flow directing surface is planar.

In some embodiments, two sides of the rack in the first direction are a first side and a second side respectively, a distance between an edge of the first side and the air outlet is L1, a distance between an edge of the second side and the air outlet is L2, L1 > L2, and the first flow guiding surface is disposed on the first side of the rack.

In some embodiments, the oil collecting flow guide surface comprises: the second flow guide surface is positioned on at least one side of the frame in the second direction and extends downwards in the first direction, the first direction and the second direction are both vertical to the vertical direction, and the first direction is vertical to the second direction.

In some embodiments, the angle between the second diversion surface and the horizontal plane is less than or equal to 60 ° and greater than or equal to 7 °.

In some embodiments, the included angle between the second diversion surface and the horizontal plane is further less than or equal to 20 ° and greater than or equal to 10 °.

In some embodiments, the second flow directing surface is planar.

In some embodiments, the oil collecting flow guide surface includes a first flow guide surface, the first and second sides of the frame in the first direction are respectively a first side and a second side, the first flow guide surface is located on the first side of the frame, and the second flow guide surface extends downward from the first side toward the second side.

In some embodiments, the rack comprises: the top plate is provided with the air outlet; the first oil guide plate is arranged on at least one side edge of the top plate in the first direction, and the lower surface of the first oil guide plate is a first flow guide surface; and the second oil guide plate is arranged at the edge of at least one side of the top plate in the second direction, the second oil guide plate and the first oil guide plate are adjacent to each other, and the lower surface of the second oil guide plate is constructed as a second flow guide surface.

In some embodiments, at least one of both side surfaces of the second oil guide plate is formed as a third guide surface provided on an upper side of the second guide surface for guiding the oil to the second guide surface.

In some embodiments, at least one of the second oil guide plates has a vent hole formed therethrough in the second direction.

In some embodiments, the second oil deflector has an open area ratio ranging from 20% to 60%.

In some embodiments, the vent hole is formed as an elongated hole, a length direction of the vent hole is inclined with respect to a vertical direction, and an inclined direction of the vent hole is consistent with an inclined direction of the second flow guide surface.

In some embodiments, the angle between the length direction of the vent hole and the vertical direction is less than or equal to 60 °.

In some embodiments, the angle between the length direction of the vent hole and the vertical direction is less than or equal to 20 ° and greater than or equal to 10 °.

In some embodiments, at least one of the second oil deflection plates includes: a body part, an upper end of the body part being fixed to the top plate; the edge folding part is connected to the lower end of the body part in a bending mode, the lower surface of the edge folding part forms the second diversion surface, a diversion trench is defined by the edge folding part and the body part together, the diversion trench is used for receiving oil flowing down from the corresponding third diversion surface, and the inclination direction of the diversion trench is consistent with that of the second diversion surface.

In some embodiments, each of the second oil deflector includes a folded portion, and the folded portions of the two second oil deflector are formed on sides of the two body portions facing each other.

In some embodiments, the frame is a unitary piece.

According to the utility model discloses range hood of second aspect embodiment, include: the air inlet device comprises a box body, a fan and a fan, wherein an air inlet area is formed on the box body, and a mounting opening is formed at the top of the box body; the fan component is arranged in the box body and is provided with an inlet communicated with the air inlet area; a frame, the frame is according to the utility model discloses the frame for range hood of above-mentioned first aspect embodiment, and install in installing port department.

According to the utility model discloses range hood, through adopting foretell frame, can effectively avoid the fluid in the box to drip to the top of a kitchen range on, promoted to use and experienced.

In some embodiments, the oil collecting diversion surface includes a first diversion surface and a second diversion surface, the box includes a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are arranged on both sides of the bottom plate at intervals along a first direction, the air inlet area is formed on the bottom plate and is arranged at intervals respectively with the first side plate and the second side plate, the first diversion surface extends to cooperate with the first side plate to guide oil to the first side plate, and the second diversion surface extends to cooperate with the second side plate to guide oil to the second side plate.

In some embodiments, the range hood further comprises: the oil cup is arranged at the connecting position of the second side plate and the bottom plate and defines a first oil storage cavity, and the first oil storage cavity is used for receiving oil flowing down from the second side plate.

In some embodiments, the range hood further comprises: the oil storage piece is arranged at the connecting position of the first side plate and the bottom plate and limits a second oil storage cavity, and the second oil storage cavity is used for receiving oil flowing down from the first side plate.

In some embodiments, the range hood further comprises: the oil cup is arranged at the connecting position of the second side plate and the bottom plate and is positioned below the oil storage piece, a first oil storage cavity is defined by the oil cup, and the first oil storage cavity is used for receiving oil flowing down from the second side plate; and the oil guide part is communicated with the first oil storage cavity and the second oil storage cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a rack according to an embodiment of the present invention;

FIG. 2 is another schematic view of the gantry shown in FIG. 1;

FIG. 3 is an enlarged view of section A circled in FIG. 2;

FIG. 4 is yet another schematic view of the gantry shown in FIG. 1;

fig. 5 is a schematic view of a range hood according to an embodiment of the present invention;

figure 6 is another schematic view of the range hood shown in figure 5;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

figure 8 is another cross-sectional view of the range hood shown in figure 7;

FIG. 9 is a schematic view of an oil guiding path of the range hood shown in FIG. 8;

figure 10 is yet another schematic diagram of the range hood shown in figure 5;

FIG. 11 is a cross-sectional view taken along line C-C of FIG. 10;

FIG. 12 is a partial schematic view of FIG. 11;

fig. 13 is an exploded view of the range hood shown in fig. 10.

Reference numerals:

100. a frame;

10. an air outlet; 20. an oil collecting and flow guiding surface; 20a, a first flow guide surface; 20b, a second flow guide surface;

30. a top plate; 40. a first oil guide plate;

50. a second oil guide plate; 50a and a third flow guide surface; 50b, a vent hole; 50c, a diversion trench;

51. a body portion; 52. a hem part;

60. a first mounting plate; 70. a second mounting plate;

1000. a range hood;

200. a fan component; 200a, an inlet; 200b, an outlet; 201. a fan; 202. a volute;

300. a box body; 300a, a mounting port;

301. an air intake area; 302. a first side plate; 302a, a panel; 302b, a liner plate;

303. a second side plate; 304. a base plate; 305. a top back plate;

400. an oil cup; 400a, a first oil storage chamber; 500. an oil storage member; 500a, a second oil storage chamber;

600. a check valve; 700. an air inlet net; 800. sending light; 2000. and (4) oil liquid.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Hereinafter, the frame 100 for the range hood 1000 according to the embodiment of the present invention will be described with reference to the drawings.

As shown in fig. 1, 5, 7 and 13, according to the rack 100 for the range hood 1000 of the embodiment of the present invention, the rack 100 is suitable for being disposed at the upper side of the fan component 200 of the range hood 1000, and the rack 100 is formed with the air outlet 10, the air outlet 10 can penetrate through the rack 100, in the oil smoke flowing direction, the air outlet 10 is suitable for being communicated with the downstream side of the outlet 200b of the fan component 200, that is, the air flow flowing out from the outlet 200b of the fan component 200 can flow to the air outlet 10 and be discharged through the air outlet 10.

In the range hood in the related art, a fan component is used for generating a negative pressure region so as to form flowing air flow to drive oil smoke, and generally in order to improve the smoke gathering effect, an air inlet region of the range hood is arranged at the bottom of the range hood and is close to a cooking bench generating the oil smoke; the range hood is used for a long time, because the partial surface of frame contacts with the oil smoke, oil deposits easily on the surface of frame, and the oil smoke probably condenses to liquid then drips, especially the edge of frame, and the adhesion that oil drips on the edge is less and easy big drop to condense, and the fluid of condensation drips from the edge more easily, and the fluid of drippage probably passes the air inlet net of range hood in air inlet region department and drips on the top of a kitchen range, influences user's use and experiences.

For this purpose, as shown in fig. 1 to 4 and 9, and 11 to 12, the rack 100 in the present application has an oil collecting deflector surface 20, and the oil collecting deflector surface 20 may participate in defining the lower surface of the rack 100, so that when the rack 100 is in use, oil in the oil smoke condenses and gradually accumulates on the surface of the rack 100, the oil collecting deflector surface 20 contacts the oil smoke and condenses on the oil collecting deflector surface 20 into oil 2000, and/or the accumulated oil on the surface of the rack 100 may flow to the oil collecting deflector surface 20 after condensing into the oil 2000; the oil collecting deflector surface 20 is inclined to the horizontal plane, so that the oil collecting deflector surface 20 can guide the flow of the oil 2000, and the oil 2000 can flow under the self gravity along the inclined direction of the oil collecting deflector surface 20.

Wherein, the oil collecting deflector surface 20 is used for guiding the oil fluid 2000 towards the direction deviating from the preset cylindrical surface of the range hood 1000, the directrix of the preset cylindrical surface is the outer contour of the air inlet area 301 of the range hood 1000, and the oil fluid 2000 flows towards the direction deviating from the air inlet area 301 under the guidance of the oil collecting deflector surface 20, so that the oil fluid 2000 is prevented from flowing to the air inlet area 301 and dripping through the air inlet area 301, thereby preventing the oil fluid 2000 from dripping on the cooking bench, and improving the user experience.

It can be understood that the cylindrical surface is a curved surface formed by moving a moving straight line in parallel along a fixed curve, the moving straight line is a straight bus of the cylindrical surface, and the fixed curve is a directrix of the cylindrical surface; in this application, the predetermined cylindrical surface may be understood as a curved surface formed by parallel movement of a vertical line along the outer contour of the air intake area 301.

According to the embodiment of the utility model provides a frame 100 for range hood 1000, through set up collection oil guiding surface 20 on frame 100, make collection oil guiding surface 20 slope in the horizontal plane setting, and collection oil guiding surface 20 is used for deviating from the direction guide of range hood 1000's preset cylinder with fluid 2000 orientation, the directrix of preset cylinder is the outline of range hood 1000's air inlet region 301, and thus collection oil guiding surface 20 can deviate fluid 2000 orientation from the direction guide of air inlet region 301, avoid the fluid 2000 that gathers on frame 100 to drip to the top of a kitchen range through air inlet region 301, the use experience of range hood 1000 has been promoted; meanwhile, the range hood 1000 with the frame 100 in the application does not need to be additionally provided with an oil guide component, so that the structure of the range hood 1000 is simplified, and the cost of the range hood 1000 is reduced.

In some embodiments of the present invention, as shown in fig. 1 and 4, the oil collecting flow guide surface 20 includes a first flow guide surface 20a, the first flow guide surface 20a is located on at least one side of the rack 100 in a first direction (e.g., a front-rear direction shown in fig. 4), and the first guide surfaces 20a extend downward in a first direction, which is perpendicular to the vertical direction, oil 2000 flowing onto first baffle surface 20a and/or oil 2000 accumulating on first baffle surface 20a, the oil 2000 is guided by the first deflector surface 20a to flow downward in a first direction away from the center of the frame 100 until the oil 2000 deviates from the air intake area 301, that is, the position where the oil 2000 departs from the first deflector surface 20a may be outside the predetermined column, so that even if the oil 2000 drops off the first guide surface 20a, it will not drop to the cooking top through the air intake area 301.

For example, in the example of fig. 1 and 4, taking the first direction as the front-rear direction as an example, the first flow guiding surface 20a is located at the front side of the rack 100, and the first flow guiding surface 20a extends downward from the rear to the front until the front end of the first flow guiding surface 20a extends out of the preset column. Of course, the first flow guiding surface 20a may also be located at the rear side of the frame 100, or the front side and the rear side of the frame 100 may respectively have the first flow guiding surface 20 a.

Optionally, in the example of fig. 4, the first flow guiding surface 20a may be a plane, and the first flow guiding surface 20a has a simple structure and is convenient to machine, which is beneficial to reducing the machining cost; of course, the first flow guiding surface 20a may also be a curved surface.

In some embodiments, as shown in fig. 4, an included angle between the first baffle surface 20a and the horizontal plane is less than or equal to 50 ° and greater than or equal to 7 °, and then α is greater than or equal to 7 ° and less than or equal to 50 °, which is favorable for appropriately accelerating the flow speed of the oil 2000 along the first baffle surface 20a, ensuring that the oil 2000 flows smoothly along the first baffle surface 20a, and simultaneously effectively ensuring that the oil 2000 accumulated on the first baffle surface 20a and/or the oil 2000 flowing onto the first baffle surface 20a does not drip midway during the flow along the first baffle surface 20a, so as to ensure that the first baffle surface 20a guides the oil 2000 toward a position deviated from the predetermined cylindrical surface, thereby effectively ensuring that the oil 2000 does not drip through the air intake region 301. For example, α may be 7 °, or 10 °, or 20 °, or 30 °, or 40 °, or 50 °, etc.

For example, in the example of fig. 4, the first flow guiding surface 20a is located at the front side of the rack 100, and the first flow guiding surface 20a extends downward from the rear to the front, and the included angle α between the first flow guiding surface 20a and the horizontal plane satisfies 7 ° ≦ α ≦ 50 °. It is understood that when the frame 100 has the first flow guiding surfaces 20a on two sides in the first direction, the included angles between the two first flow guiding surfaces 20a and the horizontal plane may be equal or different.

It can be understood that the included angle α between the first flow guiding surface 20a and the horizontal plane can be understood as the included angle between the tangent plane at any point on the first flow guiding surface 20a and the horizontal plane; when the first flow guiding surface 20a is a plane, α is a constant value, and when the first flow guiding surface 20a is a curved surface, α is a variable value.

In the utility model discloses in further embodiment, as shown in fig. 4, the contained angle between first water conservancy diversion face 20a and the horizontal plane is further less than or equal to 30 and more than or equal to 10, then 10 is ≦ alpha ≦ 30, then under the prerequisite of guaranteeing that fluid 2000 flows smoothly along first water conservancy diversion face 20a, further effective fluid 2000 of guaranteeing to gather on first water conservancy diversion face 20a, and/or, flow to fluid 2000 on first water conservancy diversion face 20a, at the in-process that flows along first water conservancy diversion face 20a, fluid 2000 can not drip midway. For example, α may be 10 °, or 15 °, or 20 °, or 25 °, or 30 °, etc.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, two sides of the frame 100 in the first direction are a first side and a second side respectively, a distance between an edge of the first side and the air outlet 10 is L1, a distance between an edge of the second side and the air outlet 10 is L2, and L1 is greater than L2, that is, the frame 100 has a larger surface between the air outlet 10 and the edge of the first side, and the first baffle surface 20a is disposed on the first side of the frame 100, so as to ensure that the oil droplets accumulated on the first side of the frame 100 smoothly flow to the first baffle surface 20a and/or the oil droplets accumulated on the first baffle surface 20a smoothly flow to the oil 2000 and flow along the first baffle surface 20 a.

The distance between the edge of the first side and the air outlet 10 can be understood as the closest distance between the edge of the first side and the corresponding edge of the air outlet 10; the distance between the edge of the second side and the air outlet 10 can be understood as the closest distance between the edge of the second side and the corresponding edge of the air outlet 10.

For example, in the example of fig. 1 and 4, taking the first direction as the front-back direction as an example, the rack 100 has a front side and a rear side, a distance between a front side edge and the air outlet 10 is L1, a distance between a rear side edge and the air outlet 10 is L2, L1 > L2, and the first flow guiding surface 20a is disposed on the front side of the rack 100; the distance between the front side edge and the air outlet 10 can be understood as the closest distance between the front side edge and the front edge of the air outlet 10, and the distance between the rear side edge and the air outlet 10 can be understood as the closest distance between the rear side edge and the rear edge of the air outlet 10.

In some embodiments of the present invention, as shown in fig. 1-4, the oil collecting guide surface 20 includes a second guide surface 20b, the second guide surface 20b is located on at least one side of the frame 100 in a second direction (e.g., a left-right direction shown in fig. 1), and extends downwards in a first direction, the first direction and the second direction are both vertical to the vertical direction, and the first direction and the second direction are vertical, oil 2000 flowing onto second diaphragm surface 20b and/or oil 2000 accumulating on second diaphragm surface 20b, guided by the second guide surface 20b, the oil flows downwards in the first direction away from the center of the rack 100 until the oil 2000 deviates from the air inlet area 301, that is, the position where the oil 2000 departs from the second guide surface 20b may be outside the preset column, so that even if the oil 2000 drops off the second guide surface 20b, the oil will not drop to the cooking range through the air inlet area 301.

For example, in the example of fig. 1 to 4, taking the first direction as the front-back direction and the second direction as the left-right direction as an example, the left and right sides of the rack 100 are respectively provided with the second flow guiding surfaces 20b, and both the second flow guiding surfaces 20b extend downward along the front-back direction until the front end or the rear end of the second flow guiding surface 20b extends out of the preset column surface. Of course, the second guide surface 20b may also be located on the left side or the right side of the frame 100.

It can be seen that, taking the first direction as the front-back direction as an example, the second flow guiding surface 20b may extend downward from front to back, or the second flow guiding surface 20b may extend downward from back to front; in other words, the front end of the second flow guide surface 20b is located above the rear end of the second flow guide surface 20b, or the rear end of the second flow guide surface 20b is located above the front end of the second flow guide surface 20 b.

It is understood that when the frame 100 has the second flow guiding surfaces 20b on two sides in the second direction, the two second flow guiding surfaces 20b may have the same or opposite inclination directions. For example, the left and right sides of the rack 100 respectively have second flow guiding surfaces 20b, and both the second flow guiding surfaces 20b extend downward from the rear to the front, or both the second flow guiding surfaces 20b extend downward from the front to the rear, or one of the second flow guiding surfaces 20b extends downward from the rear to the front and the other second flow guiding surface 20b extends downward from the front to the rear.

Of course, the present application is not so limited; in other embodiments, the second flow guiding surface 20b may also be located on at least one side of the frame 100 in the second direction (e.g., the left-right direction shown in fig. 1) and extend downward in the second direction.

Optionally, in the example of fig. 1 and 4, the second flow guiding surface 20b may be a plane, and the second flow guiding surface 20b has a simple structure and is convenient to process, which is beneficial to reducing the processing cost; of course, the second guiding surface 20b may also be a curved surface.

In some embodiments, as shown in fig. 4, an included angle between the second baffle surface 20b and the horizontal plane is less than or equal to 60 ° and greater than or equal to 7 °, and β is greater than or equal to 7 ° and less than or equal to 60 °, which is favorable for appropriately accelerating the flow speed of the oil 2000 along the second baffle surface 20b, ensuring that the oil 2000 smoothly flows along the second baffle surface 20b, and simultaneously effectively ensuring that the oil 2000 accumulated on the second baffle surface 20b and/or the oil 2000 flowing onto the second baffle surface 20b does not drop midway during the flow along the second baffle surface 20b, so as to ensure that the second baffle surface 20b guides the oil 2000 toward a position deviated from the predetermined cylindrical surface, thereby effectively ensuring that the oil 2000 does not drop through the air intake region 301. For example, β can be 7 °, or 10 °, or 20 °, or 30 °, or 40 °, or 50 °, or 60 °, and so forth.

For example, in the example of fig. 4, the left and right sides of the rack 100 are respectively provided with the second guide surfaces 20b, each second guide surface 20b extends downward from front to back, and an included angle β between each second guide surface 20b and the horizontal plane satisfies 7 ° ≦ β ≦ 60 °. It is understood that the included angles between the two second guiding surfaces 20b and the horizontal plane may be equal or different.

In the further embodiment of the present invention, as shown in fig. 4, the included angle between the second guiding surface 20b and the horizontal plane is further less than or equal to 20 ° and greater than or equal to 10 °, then β is less than or equal to 20 ° for 10 °, and then under the premise that the oil 2000 smoothly flows along the second guiding surface 20b, the oil 2000 accumulated on the second guiding surface 20b is further effectively ensured, and/or the oil 2000 flows to the second guiding surface 20b, and in the process of flowing along the second guiding surface 20b, the oil 2000 will not drop halfway. For example, β can be 10 °, or 13 °, or 15 °, or 17 °, or 20 °, and so forth.

In some embodiments of the present invention, as shown in fig. 1 to 4, the oil collecting baffle 20 includes a first baffle 20a, the two sides of the rack 100 in the first direction are respectively the first side and the second side, the first baffle 20a is located on the first side of the rack 100, then the first baffle 20a extends downward from the second side toward the direction of the first side, and the second baffle 20b extends downward from the first side toward the second side, it is seen that the inclination directions of the first baffle 20a and the second baffle 20b are not consistent, the first baffle 20a is used to guide the oil 2000 to the first side of the rack 100, the second baffle 20b is used to guide the oil 2000 to the second side of the rack 100, which is convenient to realize the dispersion and guidance of the oil 2000 on the surface of the rack 100, and is beneficial to avoid the oil drop caused by the oil 2000 being too concentrated to make the oil 2000 drop midway.

For example, in the example of fig. 1 to 4, taking the first direction as the front-rear direction and the second direction as the left-right direction as an example, the first baffle surface 20a is located at the front side of the frame 100, the first baffle surface 20a extends downward from the rear to the front to guide the oil 2000 forward, and the second baffle surface 20b extends downward from the front to the rear to guide the oil 2000 rearward.

In some embodiments of the present invention, as shown in fig. 1 to 4, the rack 100 includes a top plate 30, a first oil guiding plate 40 and a second oil guiding plate 50, the top plate 30 is formed with the air outlet 10, the top plate 30 is provided with the first oil guiding plate 40 at least one side edge in the first direction, the lower surface of the first oil guiding plate 40 is configured as a first flow guiding surface 20a, the top plate 30 is provided with the second oil guiding plate 50 at least one side edge in the second direction, and the lower surface of the second oil guiding plate 50 is configured as a second flow guiding surface 20 b.

Wherein the second oil guide plate 50 and the first oil guide plate 40 are adjacent to each other so as to secure the structural strength of the frame 100; when the rack 100 is used in the range hood 1000, the rack 100 can bear the acting force of the fan component 200 due to its own weight, so that the height of the fan component 200 in the vertical direction is increased, thereby improving the air volume and noise of the range hood 1000.

For example, in the example of fig. 1 to 4, the first direction is a front-rear direction, the second direction is a left-right direction, the first oil guide plate 40 is connected to the front side of the top plate 30, and one second oil guide plate 50 is connected to each of the left and right sides of the top plate 30. Optionally, the top plate 30, the first oil guide plate 40 and the second oil guide plate 50 are respectively of an equal-thickness structure.

Further, in the example of fig. 1-4, the frame 100 further includes a first mounting plate 60, the first mounting plate 60 is connected to a side of the first oil guide plate 40 away from the top plate 30, and the first mounting plate 60 is connected to the second oil guide plate 50; when the rack 100 is used in the range hood 1000, the first mounting plate 60 may be fixedly connected to the box 300, so as to achieve reliable mounting of the rack 100.

Further, in the example of fig. 1 to 4, the rack 100 further includes a second mounting plate 70, the second mounting plate 70 is connected to a side of the top plate 30 away from the first oil guide plate 40, and the second mounting plate 70 is connected to the two second oil guide plates 50, which is beneficial to improving the overall strength of the rack 100 and ensuring that the rack 100 is reliable in use; when the rack 100 is used in the range hood 1000, since the second mounting plate 70 can shield one side of the rack 100, the mounting height of the rack 100 can be appropriately increased, so that a part of the second mounting plate 70 leaks out of the box 300, which is beneficial to increasing the mounting height of the fan component 200, thereby improving the air volume and noise of the range hood 1000.

Of course, when the oil collecting guide surface 20 includes the first guide surface 20a and does not include the second guide surface 20b, the frame 100 includes the top plate 30 and the first oil guide plate 40 and does not include the second oil guide plate 50; when the oil collecting guide surface 20 includes the second guide surface 20b but not the first guide surface 20a, the frame 100 includes the top plate 30 and the second oil guide plate 50 but not the first oil guide plate 40.

In some embodiments of the present invention, as shown in fig. 1 to 4, at least one of the thickness both side surfaces of the second oil deflector 50 is formed as a third deflector surface 50a, the third deflector surface 50a is provided on an upper side of the second deflector surface 20b, and the third deflector surface 50a is used to guide the oil 2000 to the second deflector surface 20b, and the second deflector surface 20b guides the oil 2000 toward a direction deviating from the predetermined cylindrical surface. It can be seen that the third guiding surface 50a contacts with the oil smoke, so that the second oil guiding plate 50 has a larger contact area with the oil smoke, and the oil is condensed and accumulated on the third guiding surface 50a, and flows along the third guiding surface 50a to the second guiding surface 20 b.

It is understood that the third guiding surface 50a is parallel to the vertical direction, or the third guiding surface 50a forms a non-zero angle with the vertical direction.

In some embodiments of the present invention, as shown in fig. 1 to 4, at least one second oil guide plate 50 is formed with a vent hole 50b penetrating the second oil guide plate 50 in the second direction; when the rack 100 is used for the range hood 1000, the ventilation hole 50b can be located in the box body 300 of the range hood 1000, and an air cavity communicated with the fan component 200 is defined in the box body 300, so that the air flow circulation sectional area can be increased to a certain extent by the arrangement of the ventilation hole 50b, the air inlet wind resistance of the fan component 200 is reduced, and the air inlet efficiency is improved.

For example, in the example of fig. 11 and 12, the fan assembly 200 includes a fan 201 and a volute 202, the volute 202 defining an inlet 200a and an outlet 200b, and the volute 202 defining a wind tunnel in communication with the inlet 200a and the outlet 200b, respectively, the fan 201 being disposed within the wind tunnel; the volute 202 is further provided with a communication opening, the communication opening penetrates through the volute 202 along the wall thickness direction of the volute 202, so that the communication opening is communicated with the air channel, the air flow in the box body 300 can also flow into the air channel through the communication opening, and the vent hole 50b can be arranged opposite to the communication opening, so that the air inlet efficiency of the fan component 200 can be further improved.

Of course, in other embodiments, the second oil guide plate 50 may not have the vent hole 50b formed thereon.

In some embodiments, the aperture ratio of the second oil guiding plate 50 is in a range of 20% to 60% (inclusive), and the ratio of the sum of the aperture areas of all the vent holes 50b on the second oil guiding plate 50 to the area of the surface of one side of the second oil guiding plate 50 in the second direction is in a range of 20% to 60%, so as to reduce the wind resistance of the intake air of the fan assembly 200 on the premise of ensuring reliable use of the second oil guiding plate 50.

In some embodiments, as shown in fig. 1 to 4, the vent hole 50b is formed as an elongated hole, the length direction of the vent hole 50b is inclined with respect to the vertical direction, and the inclination direction of the vent hole 50b coincides with the inclination direction of the second flow guide surface 20b, so that the oil 2000 may flow along the edge of the vent hole 50b and along the length direction of the vent hole 50b toward the second flow guide surface 20b, which is beneficial to increase the oil guide efficiency of the second oil guide plate 50.

In some embodiments, as shown in fig. 4, an included angle between the length direction of the vent 50b and the vertical direction is less than or equal to 60 °, and then γ is less than or equal to 60 °, so that the oil has a suitable flowing speed, the oil smoothly flows, and the oil is prevented from dripping halfway in the process of guiding on the surface of the rack 100. For example, γ may be 10 °, or 20 °, or 30 °, or 40 °, or 50 °, or 60 °, and so on.

It is understood that when the ventilation hole 50b is plural, the length directions of the plural ventilation holes 50b may be parallel or non-parallel.

Further, as shown in fig. 4, an included angle between the length direction of the vent hole 50b and the vertical direction is less than or equal to 20 ° and greater than or equal to 10 °, then γ is greater than or equal to 10 ° and less than or equal to 20 °, which is convenient for further improving the flow speed of the oil.

In some embodiments of the present invention, as shown in fig. 2-4, at least one second oil guiding plate 50 includes a main body 51 and a folded portion 52, the upper end of the main body 51 is fixed to the top plate 30, the folded portion 52 is bent and connected to the lower end of the main body 51, which is beneficial to increasing the surface area of the second oil guiding plate 50, thereby increasing the contact area between the second oil guiding plate 50 and the oil smoke, increasing the condensation area of the oil smoke, facilitating the improvement of the oil guiding efficiency, the folded portion 52 can enhance the structural strength of the second oil guiding plate 50, and facilitating the avoidance of the vibration of the frame 100 caused by the weak strength when the frame is used in the range hood 1000.

The lower surface of the folded edge portion 52 forms a second diversion surface 20b, the folded edge portion 52 and the body portion 51 jointly define a diversion trench 50c, the diversion trench 50c is used for receiving oil liquid 2000 flowing down from the corresponding third diversion surface 50a, and the inclination direction of the diversion trench 50c is consistent with that of the second diversion surface 20b, so that the oil liquid 2000 is in smooth transition, and the risk of dripping and flying of the oil liquid 2000 is reduced.

In some embodiments of the present invention, as shown in fig. 2 and 3, each of the second oil guiding plates 50 includes a folded portion 52, and the folded portions 52 of the two second oil guiding plates 50 are formed on one sides of the two body portions 51 facing each other, so that the guiding groove 50c receives a proper amount of oil 2000, and the risk of dripping of the oil 2000 is reduced.

Of course, the position where the flange portion 52 is provided is not limited thereto; for example, the folded portion 52 of one of the second oil guide plates 50 may also be located on a side facing away from the other second oil guide plate 50.

In some embodiments of the present invention, as shown in fig. 1-4, the frame 100 is a single piece, and the connection structure does not need to be processed between each portion of the frame 100, which is convenient for processing the frame 100 and is beneficial to improving the processing efficiency of the frame 100.

For example, in the example of fig. 1 to 4, the frame 100 includes the top plate 30, the first oil guide plate 40, and the second oil guide plate 50, and then the top plate 30, the first oil guide plate 40, and the second oil guide plate 50 are integrally formed, and there is no need to separately machine a connecting structure between the top plate 30 and the first oil guide plate 40, and there is no need to assemble the top plate 30 and the first oil guide plate 40, and also there is no need to separately machine a connecting structure between the top plate 30 and the second oil guide plate 50, and there is no need to assemble the top plate 30 and the second oil guide plate 50, and there is no need to separately machine a connecting structure between the first oil guide plate 40 and the second oil guide plate 50, and there is no need to assemble the first oil guide plate 40 and the second oil guide plate 50.

Of course, the present application is not so limited; in other embodiments, the frame 100 may also be a separate member, such as the top plate 30, the first oil guide plate 40 and the second oil guide plate 50, which are separately formed and fixed by an assembling means, such that the top plate 30, the first oil guide plate 40 and the second oil guide plate 50 are connected as a whole.

In some embodiments, as shown in fig. 5, when the rack 100 is used in the range hood 1000, a check valve 600 may be disposed at the air outlet 10 to ensure one-way flow of the oil smoke, and the check valve 600 is fixedly connected to the rack 100; of course, an air outlet pipeline can be arranged at the air outlet 10, and the check valve 600 is arranged on the air outlet pipeline.

The range hood 1000 according to the second aspect of the present invention comprises a box 300, a fan assembly 200 and a frame 100, wherein the box 300 is formed with an air inlet area 301, the oil smoke is introduced into the box 300 by disposing the air inlet area 301, a mounting opening 300a is formed at the top of the box 300, the mounting opening 300a is located above the air inlet area 301, the fan assembly 200 is disposed in the box 300, the fan assembly 200 has an inlet 200a communicated with the air inlet area 301, the frame 100 is the frame 100 for the range hood 1000 according to the first aspect of the present invention, and the frame 100 and the box 300 are separate components, i.e. the frame 100 and the box 300 are separately formed, the frame 100 is mounted at the mounting opening 300a, so that the oil smoke can flow into the fan assembly 200 through the air inlet area 301 when the fan assembly 200 operates, and then is discharged to the air outlet 10 of the frame 100 through the outlet 200b of the fan assembly 200, the oil smoke is condensed by contact with the inner wall surface of the casing 300, and the oil is accumulated on the surface of the housing 100 facing the inside of the casing 300 and the inner wall surface of the casing 300.

For example, the oil collection baffle 20 may be used to direct oil into the tank 300, which may facilitate ensuring that the oil 2000 is not directed by the oil collection baffle 20 to drip the oil 2000 out of the tank 300. The oil collecting and guiding surface 20 may be located in the tank 300, or the oil collecting and guiding surface 20 may be located outside the tank 300, or a part of the oil collecting and guiding surface 20 may be located in the tank 300, and another part may be located outside the tank 300.

According to the utility model discloses range hood 1000 through adopting foretell frame 100, can effectively avoid the fluid in the box to drip to the top of a kitchen range on, has promoted the use and has experienced, has avoided the hookup location department long-pending oil between frame 100 and the box 300 simultaneously.

In some embodiments, as shown in fig. 7, 8 and 11, the frame 100 includes a top plate 30, a first oil guide plate 40 and a second oil guide plate 50, at least a portion of the first oil guide plate 40 is located outside the tank 300, and the second oil guide plate 50 extends into the tank 100 through the mounting opening 300 a; it can be seen that the first baffle surface 20a can guide the oil toward the connecting edge between the rack 100 and the box 300, so as to guide the oil onto the inner wall surface of the box 300, and the second baffle surface 20b can guide the oil at the connecting edge between the rack 100 and the box 300 toward the position deviated from the air intake area 301.

In some embodiments of the present invention, as shown in fig. 5, 7-9, 11-13, the oil collecting guiding surface 20 includes a first guiding surface 20a and a second guiding surface 20b, the box 300 includes a first side plate 302, a second side plate 303, and a bottom plate 304, the first side plate 302 and the second side plate 303 are spaced apart from each other along a first direction on two sides of the bottom plate 304, the air inlet area 301 is formed on the bottom plate 304, the air intake area 301 is spaced apart from the first side plate 302 and the second side plate 303, the first diversion surface 20a extends to cooperate with the first side plate 302 to guide the oil 2000 to the first side plate 302, the second diversion surface 20b extends to cooperate with the second side plate 303 to guide the oil 2000 to the second side plate 303, the oil on the first side plate 302 and the second side plate 303 is guided to a preset position, so that the oil is stored, and the oil is prevented from dropping on the cooking bench.

For example, in the example of fig. 7-9, 11-13, the frame 100 includes the top plate 30, the first oil guide plate 40, and the second oil guide plate 50, the lower surface of the first oil guide plate 40 is configured as the first deflector surface 20a, and the first oil guide plate 40 extends to be connected to the first side plate 302 such that the first deflector surface 20a guides the oil onto the inner wall surface of the first side plate 302, the lower surface of the second oil guide plate 50 is configured as the second deflector surface 20b, and the second oil guide plate 50 extends to be matched with the second side plate 303, for example, the second oil guide plate 50 is in abutting engagement with the second side plate 303, or the second oil guide plate 50 is in abutting engagement with the second side plate 303 and fixedly connected thereto such that the second deflector surface 20b guides the oil onto the inner wall surface of the second side plate 303.

For example, as shown in fig. 5 and 13, the case 300 further includes a top rear plate 305, the top rear plate 305 is connected to the tops of the first side plate 302 and the second side plate 303, the mounting opening 300a is formed in the top rear plate 305, and the mounting opening 300a penetrates the top rear plate 305 in the up-down direction; the top plate 30 is spaced above the top rear plate 305 such that the first baffle surface 20a is located on the upper side of the cabinet 300 and the second baffle surface 20b is located within the cabinet 300.

Optionally, in the example of fig. 13, the first side plate 302 includes a panel 302a and a lining plate 302b that are fixedly connected, the lining plate 302b is disposed inside the panel 302a, and the lining plate 302b is disposed in close contact with the inner side wall of the panel 302a, so as to facilitate ensuring the appearance of the first side plate 302 and facilitating connection and fixation of the first side plate 302 with other components. For example, the panel 302a is a glass member, and a connection structure can be processed on the liner plate 302b to connect the first side plate 302 with other components.

In some embodiments, as shown in fig. 5, 6, 11 and 13, the range hood 1000 further includes an air inlet net 700, the air inlet net 700 is disposed at the air inlet area 301, the oil smoke flows into the box 300 through the air inlet net 700, and the air inlet net 700 can perform preliminary filtration on the oil smoke, etc.; the both sides of air inlet net 700 on the second direction are equipped with shot-light 800 respectively to for the user provides suitable luminance when guaranteeing to use range hood 1000, promote to use and experience.

In some embodiments, as shown in fig. 7, 8, 11, and 13, the fan assembly 200 includes a fan 201 and a volute 202, the volute 202 defining an inlet 200a and an outlet 200b, and the volute 202 defining an air duct in communication with the inlet 200a and the outlet 200b, respectively, the fan 201 being disposed within the air duct. For example, the blower 201 is a centrifugal blower, the inlet 200a is formed at one axial side (e.g., a front side in fig. 7) of the scroll 202, the outlet 200b is formed at an upper side of the scroll 202, and the scroll 202 may be connected to a lower side of the frame 100, for example, the scroll 202 is connected to a lower surface of the top plate 30, so that the outlet 200b communicates with the outlet 10.

In some embodiments of the present invention, as shown in fig. 7, fig. 8, fig. 11 and fig. 13, the range hood 1000 further includes an oil cup 400, the oil cup 400 is disposed at the connecting position between the second side plate 303 and the bottom plate 304, and the oil cup 400 defines a first oil storage chamber 400a, the first oil storage chamber 400a is used for receiving the oil 2000 flowing down from the second side plate 303, so as to store the oil 2000 flowing down from the second side plate 303, and when the oil 2000 in the first oil storage chamber 400a reaches a certain storage amount, the first oil storage chamber 400a is cleaned, thereby reducing the cleaning frequency of the range hood 1000, the maintenance convenience of the range hood 1000 is improved, and frequent cleaning of the range hood 1000 is avoided.

Optionally, in the examples of fig. 7, fig. 8, fig. 11, and fig. 13, the oil cup 400 is detachably connected to the box body 300, so that the oil cup 400 can be detached from the box body 300, which is convenient for disassembling and cleaning the oil cup 400, and improves the cleaning convenience.

In some embodiments of the utility model, as shown in fig. 7-9, range hood 1000 still includes oil storage 500, oil storage 500 is established in the hookup location department of first curb plate 302 and bottom plate 304, be favorable to increasing the structural strength of box 300, and oil storage 500 limits second oil storage chamber 500a, second oil storage chamber 500a is used for accepting fluid 2000 that flows down from first curb plate 302, so as to realize the storage of fluid 2000 that flows down on first curb plate 302, and when fluid 2000 in second oil storage chamber 500a reaches certain storage capacity, clean second oil storage chamber 500a, thereby range hood 1000's cleaning frequency has been reduced, range hood 1000's maintenance convenience has been promoted, avoid frequently cleaning range hood 1000.

For example, in the example of fig. 7-9, the first side plate 302 can be connected to the bottom plate 304 through an oil reservoir 500, the oil reservoir 500 is disposed inside the first side plate 302, the top of the second oil storage chamber 500a is open, and the first side plate 302 has a guiding portion that extends inward and downward toward the first oil storage chamber 500a so as to guide all of the oil flowing down on the first side plate 302 to the second oil storage chamber 500 a.

In some embodiments, as shown in fig. 8, 9 and 13, the range hood 1000 further includes an oil cup 400 and an oil guide (not shown), the oil cup 400 is disposed at a connecting position of the second side plate 303 and the bottom plate 304, the oil cup 400 is located below the oil storage 500, the oil cup 400 defines a first oil storage chamber 400a, the first oil storage chamber 400a is used for receiving the oil 2000 flowing down from the second side plate 303, and the oil guide communicates the first oil storage chamber 400a and the second oil storage chamber 500a, so that the oil 2000 in the second oil storage chamber 500a can flow to the first oil storage chamber 400a through the oil guide. Therefore, a user can clean the oil cup 400 without frequently cleaning the oil storage part 500, and the maintenance convenience of the range hood 1000 is improved.

Alternatively, the oil guiding member may be disposed on the bottom plate 304, and the oil guiding member is avoided from the air inlet area 301, for example, the oil guiding member is avoided from the air holes of the air inlet net 700 at the air inlet area 301; for example, the oil guide may be provided on at least one side of the air intake region 301 in the left-right direction, or the air intake region 301 may include a plurality of sub-regions disposed at intervals, and the oil guide may be provided between two adjacent sub-regions.

It is understood that, when the oil 2000 in the second oil storage chamber 500a can flow to the first oil storage chamber 400a through the oil guide, the oil storage 500 can be detachably connected to the case 300, or can be non-detachably connected to the case 300, so as to reduce the connection requirement for the oil storage 500.

In addition, when the oil storage member 500 is detachably connected to the box 300, the oil storage member 500 can be detached from the box 300, and the range hood 1000 does not need to be provided with an oil guide member, and can also conveniently process the oil 2000 stored in the oil storage member 500.

Other constructions and operations of the range hood 1000 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (26)

1. The utility model provides a frame for range hood, its characterized in that, the frame is suitable for to be established the upside of range hood's fan part, just the frame is formed with the air outlet, and on the oil smoke flow direction, the air outlet is suitable for the intercommunication and is in the downstream side of the export of fan part, the lower surface of frame has an oil collection water conservancy diversion face, oil collection water conservancy diversion face slope is in the horizontal plane setting, and is used for deviating from fluid orientation in the direction guide of range hood's the cylinder of predetermineeing, the directrix of predetermineeing the cylinder does the outline in range hood's air inlet region.

2. The frame for a range hood according to claim 1, wherein the oil collection flow guide surface comprises:

the first flow guide surface is positioned on at least one side of the rack in a first direction, extends downwards in the first direction towards a direction far away from the center of the rack, and is vertical to the vertical direction.

3. The frame for a range hood according to claim 2, wherein an included angle between the first flow guiding surface and the horizontal plane is less than or equal to 50 ° and greater than or equal to 7 °.

4. The frame for a range hood according to claim 3, wherein an angle between the first deflector surface and the horizontal plane is further less than or equal to 30 ° and greater than or equal to 10 °.

5. The frame for a range hood as claimed in claim 2, wherein the first deflector surface is planar.

6. The frame according to claim 2, wherein the two sides of the frame in the first direction are a first side and a second side respectively, a distance between an edge of the first side and the air outlet is L1, a distance between an edge of the second side and the air outlet is L2, L1 > L2, and the first flow guiding surface is disposed on the first side of the frame.

7. The frame for a range hood according to any one of claims 1 to 6, wherein the oil collecting flow guide surface comprises:

the second flow guide surface is positioned on at least one side of the frame in the second direction and extends downwards in the first direction, the first direction and the second direction are both vertical to the vertical direction, and the first direction is vertical to the second direction.

8. The frame for a range hood according to claim 7, wherein an included angle between the second deflector surface and the horizontal plane is less than or equal to 60 ° and greater than or equal to 7 °.

9. The frame for a range hood according to claim 8, wherein an angle between the second deflector surface and the horizontal plane is further less than or equal to 20 ° and greater than or equal to 10 °.

10. The frame for a range hood as claimed in claim 7, wherein the second deflector surface is planar.

11. The frame according to claim 7, wherein the oil collecting flow guiding surface comprises a first flow guiding surface, the first flow guiding surface and the second flow guiding surface are respectively disposed on two sides of the frame in the first direction, the first flow guiding surface is disposed on the first side of the frame, and the second flow guiding surface extends downward from the first side toward the second side.

12. The frame for a range hood according to claim 11, wherein the frame comprises:

a top plate formed with the air outlet;

the first oil guide plate is arranged on at least one side edge of the top plate in the first direction, and the lower surface of the first oil guide plate is constructed as the first flow guide surface;

and the second oil guide plate is arranged at the edge of at least one side of the top plate in the second direction, the second oil guide plate and the first oil guide plate are adjacent to each other, and the lower surface of the second oil guide plate is constructed as the second flow guide surface.

13. The frame for a range hood according to claim 12, wherein at least one of two side surfaces of the second oil guiding plate is formed as a third deflector surface, and the third deflector surface is disposed on an upper side of the second deflector surface and is configured to guide oil to the second deflector surface.

14. The frame for an extractor hood according to claim 13, wherein at least one of the second oil guide plates has a vent hole formed therethrough along the second direction.

15. The frame for a range hood according to claim 14, wherein the second oil guide plate has an aperture ratio ranging from 20% to 60%.

16. The frame for a range hood according to claim 14, wherein the vent hole is formed as a strip-shaped hole, a length direction of the vent hole is obliquely arranged relative to a vertical direction, and an oblique direction of the vent hole is consistent with an oblique direction of the second flow guide surface.

17. The frame for a range hood according to claim 16, wherein an angle between a length direction of the vent hole and a vertical direction is less than or equal to 60 °.

18. The frame for a range hood according to claim 16, wherein an included angle between the length direction of the vent hole and the vertical direction is less than or equal to 20 ° and greater than or equal to 10 °.

19. The frame for a range hood according to claim 13, wherein at least one of the second oil guide plates comprises:

a body part, an upper end of the body part being fixed to the top plate;

the edge folding part is connected to the lower end of the body part in a bending mode, the lower surface of the edge folding part forms the second diversion surface, a diversion trench is defined by the edge folding part and the body part together, the diversion trench is used for receiving oil flowing down from the corresponding third diversion surface, and the inclination direction of the diversion trench is consistent with that of the second diversion surface.

20. The frame for a range hood according to claim 19, wherein each of the second oil guide plates includes a folded edge portion, and the folded edge portions of the two second oil guide plates are respectively formed on sides of the two body portions facing each other.

21. The frame for a range hood as set forth in claim 1, wherein said frame is a unitary piece.

22. A range hood, comprising:

the air inlet device comprises a box body, a fan and a fan, wherein an air inlet area is formed on the box body, and a mounting opening is formed at the top of the box body;

the fan component is arranged in the box body and is provided with an inlet communicated with the air inlet area;

a frame for a range hood according to any one of claims 1 to 21 mounted at the mounting opening.

23. The range hood of claim 22, wherein the oil collecting deflector comprises a first deflector and a second deflector, the box comprises a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are spaced apart from each other along a first direction, the air intake region is formed on the bottom plate and spaced apart from the first side plate and the second side plate, the first deflector extends to cooperate with the first side plate to guide oil to the first side plate, and the second deflector extends to cooperate with the second side plate to guide oil to the second side plate.

24. The range hood of claim 23, further comprising:

the oil cup is arranged at the connecting position of the second side plate and the bottom plate and defines a first oil storage cavity, and the first oil storage cavity is used for receiving oil flowing down from the second side plate.

25. The range hood of claim 24, further comprising:

the oil storage piece is arranged at the connecting position of the first side plate and the bottom plate and limits a second oil storage cavity, and the second oil storage cavity is used for receiving oil flowing down from the first side plate.

26. The range hood of claim 25, further comprising:

the oil cup is arranged at the connecting position of the second side plate and the bottom plate and is positioned below the oil storage piece, a first oil storage cavity is defined by the oil cup, and the first oil storage cavity is used for receiving oil flowing down from the second side plate;

and the oil guide part is communicated with the first oil storage cavity and the second oil storage cavity.

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