CN216897439U - Fume exhaustor - Google Patents

Abstract

The utility model discloses a range hood. The range hood includes: the fan assembly comprises a body, wherein a fan assembly is arranged in the body; the lifting assembly is movably connected with the body and comprises a guide plate, the guide plate is provided with a first oil net and a second oil net which are relatively fixed in position, the lifting assembly can be switched between a first position and a second position relative to the body, under the condition that the lifting assembly is at the first position, the first oil net is exposed outside the body, the second oil net is hidden inside the body, and under the condition that the lifting assembly is at the second position, the first oil net and the second oil net are both exposed outside the body. Above-mentioned lampblack absorber through lifting unit's position change for first oil net alone or can constitute the smoking mouth with the second oil net, improve the negative pressure and distribute, and then can promote the smoking effect.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of range hoods, in particular to a liftable range hood.

Background

Along with the improvement of living standard of people, the range hood of the middle island is gradually popularized in large flat floors and villas. And in order to match with the whole kitchen scene, the Zhongdao range hood is far away from the kitchen range and has a thin appearance, so that the Zhongdao range hood has a poor smoking effect.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a range hood.

A range hood of an embodiment of the present invention includes:

the fan assembly comprises a body, wherein a fan assembly is arranged in the body;

the lifting assembly is movably connected with the body and comprises a guide plate, the guide plate is provided with a first oil net and a second oil net which are relatively fixed in position, the lifting assembly can be switched between a first position and a second position relative to the body, the first oil net is exposed out of the body and the second oil net is hidden in the body under the condition of the first position of the lifting assembly, and the first oil net and the second oil net are exposed out of the body under the condition of the second position of the lifting assembly.

Above-mentioned lampblack absorber through lifting unit's position change for first oil net alone or can constitute the smoking mouth with the second oil net, improve the negative pressure and distribute, and then can promote the smoking effect.

In some embodiments, the first oil screen is provided with a plurality of first smoke suction holes in a strip shape, and the first smoke suction holes are arranged at intervals along the length direction of the range hood.

In certain embodiments, the second oil mesh is a honeycomb oil mesh structure.

In certain embodiments, the baffle comprises a first plate provided with the first oil screen, a connecting plate provided with the second oil screen, and a second plate provided with the second oil screen, the connecting plate comprises first and second opposite ends, the first plate is connected to the first end, the second plate is connected to the second end, and the first and second plates are located on opposite sides of the connecting plate.

In certain embodiments, the overall length of the baffle is constant and the angle of inclination of the baffle relative to the body varies with any position of the lift assembly relative to the body.

In some embodiments, the lampblack absorber includes drive assembly and coupling assembling, drive assembly passes through coupling assembling connects lifting unit, lifting unit includes two the guide plate, form an contained angle between two guide plates, every guide plate rotates and connects coupling assembling with the body lifting unit is for under the condition that the body is located different positions, connect the distance between two guide plate positions of body is different.

In some embodiments, each baffle is connected to a first side connection plate, the first side connection plates of different baffles are spaced apart, and the lift assembly includes a trim plate that covers a gap between two first side connection plates to which different baffles are connected.

In certain embodiments, the lifting assembly comprises a base plate, the connecting assembly comprises a cross beam, the base plate and the cross beam extend along the length direction of the range hood, the length of the cross beam is the same as that of the base plate, and the cross beam is connected with the base plate.

In some embodiments, the fan assembly includes a volute and a fan, the fan is located in the volute, the volute defines an air inlet, and an axis of the air inlet is perpendicular to a length direction of the baffle.

In some embodiments, the body includes frame subassembly and fixed subassembly, the fan subassembly is established in the frame subassembly, fixed subassembly includes installing frame, first apron and second apron, the frame subassembly passes through mounting panel fixed connection the installing frame, first apron is equipped with first breach, the second apron is equipped with the second breach, first apron with second cover connection and common lid are established at least partly of mounting panel with the open-top of installing frame, first breach with the second breach forms a mounting hole jointly, the frame subassembly is worn to establish the mounting hole, and with the installing frame is connected.

In some embodiments, the lampblack absorber includes drive assembly and coupling assembling, drive assembly passes through coupling assembling connects the lifting unit, coupling assembling includes first mounting, second connecting piece and second mounting, drive assembly fixes first mounting, second mounting fixed connection the second connecting piece with the lifting unit, drive assembly includes the slider, the slider is connected the second connecting piece, first mounting with second mounting relative slip, first mounting is formed with right carry out spacing passageway when the second mounting slides.

Additional aspects and advantages of the utility model 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 utility model.

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 perspective view of a range hood according to an embodiment of the present invention;

FIG. 2 is a schematic front view of a range hood of an embodiment of the present invention;

FIG. 3 is a bottom schematic view of a range hood of an embodiment of the present invention;

FIG. 4 is another perspective schematic view of a range hood of an embodiment of the present invention;

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

fig. 6 is another bottom schematic view of a range hood according to an embodiment of the present invention;

FIG. 7 is a schematic diagram comparing a first position and a second position of the lift assembly of the present embodiment;

FIG. 8 is a schematic view of the lift assembly of an embodiment of the present invention in a first position;

FIG. 9 is another schematic structural view of the lift assembly in the first position in accordance with an embodiment of the present invention;

FIG. 10 is a schematic structural view of the lift assembly of the present embodiment in a second position;

fig. 11 is an internal structural schematic diagram of a range hood of an embodiment of the present invention;

fig. 12 is a partially exploded schematic view of a range hood of an embodiment of the present invention;

FIG. 13 is another partially exploded schematic view of a range hood of an embodiment of the present invention;

fig. 14 is still another partially exploded schematic view of a range hood according to an embodiment of the present invention;

fig. 15 is a schematic diagram showing a relationship between an orthographic projection of the first oil screen and an orthographic projection of the air inlet in the embodiment of the present invention.

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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and diagonally above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the utility model. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 6, a range hood 100 according to an embodiment of the present invention includes a body 12 and a lifting assembly 14.

A fan assembly 16 (see fig. 9) is provided within the body 12. Lift assembly 14 is movably connected with body 12, and lift assembly 14 includes guide plate 18, and guide plate 18 is equipped with relative fixed position's first oil net 20 and second oil net 22, and lift assembly 14 can switch between first position and second position relative to body 12. With the lifting assembly 14 in the second position, both the first oil screen 20 and the second oil screen 22 are exposed outside the body 12. With the lift assembly 14 in the first position, the first oil screen 20 is exposed outside the body 12 and the second oil screen 22 is hidden inside the body 12.

Above-mentioned lampblack absorber 100 through the position change of lifting unit 14 for first oil net 20 alone or can constitute smoking mouth 23 with second oil net 22, improve the negative pressure and distribute, and then can promote the smoking effect.

Specifically, the range hood 100 further includes an oil cup 24, the oil cup 24 is disposed at the bottom of the flow guide plate 18, and the oil cup 24 can collect oil droplets dropped by the flow guide plate 18. In one embodiment, range Hood 100 can be a mid-Island or Island Hood (Island Hood), and range Hood 100 can be mounted below the ceiling and above the cooktop. The cooktop may comprise a gas cooker, or an induction cooker. The cooking range can comprise one or more furnace ends, and a cooking pot can be placed on the furnace ends. The range hood 100 may be installed right above the cooktop, and the lifting assembly 14 corresponds to a position of a burner of the cooktop. During cooking, the range hood 100 is turned on to absorb oil smoke generated during the cooking process.

When the oil smoke of the cooker is small, the lifting assembly 14 can be located at the first position, and the range hood 100 sucks the oil smoke through the first oil net 20; when the oil smoke of the cooker is large, the lifting assembly 14 can be lowered to the second position, and the range hood 100 sucks the oil smoke through the first oil net 20 and the second oil net 22. On the one hand, the smoking mouth 23 that two oil net formed descends, can be closer to the cooking utensils, promotes the smoking effect, and on the other hand 14 lift in-process can change the inclination of oil net smoking mouth 23, improves the negative pressure and distributes, promotes the smoking effect. In addition, the range hood can also comprise a controller and an oil smoke sensor, wherein the controller is electrically connected with the oil smoke sensor, and the oil smoke sensor is used for collecting oil smoke data. The controller is used for calculating the oil smoke concentration according to the oil smoke data and controlling the lifting assembly to lift to a certain working position according to the oil smoke concentration. The working position may be the first position, the second position, or other positions. The corresponding relationship between the oil smoke concentration and the working position can be calibrated in advance and stored in the range hood 100.

It will be appreciated that the lift assembly 14 may be located in other positions besides the first and second positions, such that the lift assembly 14 may be located in the first, second and other positions to provide different smoking capabilities to adapt to the smoke size by controlling the lift stroke of the lift assembly 14.

In one embodiment, the first position may be a position at which the maximum travel of the lift assembly 14 is raised, and the second position may be a position at which the maximum travel of the lift assembly 14 is lowered. When the lifting assembly 14 is located at the second position (as shown in the right view of fig. 7), the distance between the lifting assembly 14 and the cooker is the smallest, or the distance between the oil cup 24 and the body 12 is the largest; with the riser assembly 14 in the first position (left view in fig. 7), the distance between the riser assembly 14 and the cooktop is the greatest, or the distance between the oil cup 24 and the body 12 is the smallest. It is understood that in other embodiments, the first position and the second position may be other positions, and are not specifically limited herein.

Referring to fig. 1-3, when the lifting assembly 14 is in the first position, the second oil net 22 is entirely or mostly hidden in the body 12, and does not participate in smoking or participates in smoking with little participation. Referring to fig. 4-6, when the lifting assembly 14 is located at the second position, the second oil net 22 is entirely or mostly exposed outside the body 12, and participates in smoking, or participates in smoking with a large amount.

Regardless of whether in the first position, the second position, or any other position, the first wick 20 is exposed entirely, or in large part, outside the body 12 and participates in smoking. The first oil screen 20 may include an outer oil screen and an inner oil screen, which are partially overlapped. Both the outer oil screen and the inner oil screen can be detachably mounted on the guide plate 18 to facilitate cleaning of the oil screens. In addition, a glass panel is further installed on the air deflector 18, so that the air deflector 18 is convenient to clean.

The smoking opening 23 formed by the first oil net 20 can be used as a lower smoking opening 23, and the smoking opening 23 formed by the second oil net 22 can be used as an upper smoking opening 23, so that the smoking areas of the lower smoking opening 23 for main smoking and the upper smoking opening 23 for auxiliary smoking are distributed.

In one embodiment, first oil screen 20 and/or second oil screen 22 may be mounted at different openings of baffle 18. In one embodiment, the first oil screen 20 and/or the second oil screen 22 may be formed by directly opening holes on the baffle. The mesh area formed by the oil net forms the smoking opening 23. The participation of different oil screens in the oil smoke extraction is changed by the lifting movement of the lifting assembly 14. In one example, the first oil screen 20 and the second oil screen 22 may each be made of metal.

The positions of the first oil net 20 and the second oil net 22 are relatively fixed, that is, no matter which position the lifting assembly 14 is located, the relative position between the first oil net 20 and the second oil net 22 is unchanged, so that the problem that oil smoke is accumulated in sliding parts and is difficult to clean due to mutual sliding of different oil nets can be avoided.

In some embodiments, the first oil screen 20 is provided with a plurality of first smoke holes 25 in a bar shape, and the plurality of first smoke holes 25 are arranged at intervals along the length direction of the range hood 100. Thus, the smoking effect can be improved.

Specifically, the range hood 100 of the embodiment is long in whole, and the strip-shaped first smoke suction holes 25 are arranged along the length direction of the range hood 100, so that the smoke suction area formed by the first oil net 20 can basically cover the oil smoke area generated by the cooker. The plurality of first smoking apertures 25 may be arranged in parallel.

In certain embodiments, the second oil screen 22 is a honeycomb oil screen structure. Therefore, the oil smoke can be sucked away.

Specifically, when the generated oil smoke rises, most of the oil smoke is sucked away by the smoke suction port 23 formed by the first oil net 20, and a small part of the oil smoke continues to rise and diffuse to the outside of the range hood 100. When the second oil screen 22 is exposed outside the body 12, the second smoke suction holes of the honeycomb-shaped oil screen structure are distributed densely, so that the externally expanded oil smoke can be gathered, the escape of the oil smoke on the upper part is reduced, and the smoking effect is improved.

In one example, the second oil screen 22 may be formed by forming smoke holes directly in the baffle.

In certain embodiments, the baffle 18 includes a first plate 26, a connecting plate 28, and a second plate 30, the second plate 30 is provided with the second oil screen 22, the first plate 26 is provided with the first oil screen 20, the connecting plate 28 includes first and second opposing ends, the first plate 26 is connected to the first end, the second plate 30 is connected to the second end, and the first and second plates 26, 30 are located on opposing sides of the connecting plate 28. In this manner, baffle 18 is able to expose or hide second oil screen 22 in response to the lifting motion of lift assembly 14.

Specifically, in the illustrated embodiment, the first plate 26 is substantially parallel to the second plate 30, the connecting plate 28 perpendicularly connects the first plate 26 to the second plate 30, and the first plate 26 is inclined at substantially the same angle as the second plate 30. During the lifting process of the lifting assembly 14, the inclination angle of the integrated guide plate 18 is changed, so that the inclination angles of the first plate 26 and the second plate 30 are also changed, and the inclination angles of the first oil net 20 and the second oil net 22 can be adapted to the lifting stroke of the lifting assembly 14.

In one embodiment, the deflector 18 may be an integrally formed structure, for example, the deflector 18 may be folded by pressing using a sheet metal member to form the first plate 26, the connecting plate 28, and the second plate 30, the first plate 26 and the second plate 30 are respectively provided with mounting holes, the first oil screen 20 may be mounted in the mounting hole of the first plate 26, and the second oil screen 22 may be mounted in the mounting hole of the second plate 30. It is understood that in other embodiments, baffle 18 may be a separate structure, for example, first plate 26, connecting plate 28, and second plate 30 may be manufactured separately and joined together by welding or the like.

In some embodiments, the overall length of baffle 18 is constant and the angle of inclination of baffle 18 relative to body 12 varies with any position of lift assembly 14 relative to body 12. In this way, the structure of the baffle 18 can be simplified.

In particular, no matter where the lifting assembly 14 is located relative to the body 12, the overall length of the deflector 18 is unchanged, and the adjustment of the size of the smoking area is not required to be realized through the sliding connection between the two oil nets, so that the sliding connection structure between the two oil nets is not required, the structure of the deflector 18 is simplified, and the problem that the deflector 18 is difficult to clean due to the accumulation of oil smoke in the sliding connection structure can be avoided.

Under the condition that lifting unit 14 is located the optional position for body 12, the whole length of guide plate 18 is unchangeable, and the inclination of guide plate 18 for body 12 is different, that is to say, through the adjustment to the inclination of whole guide plate 18 for body 12 for guide plate 18 can be adapted to the different lift stroke of lifting unit 14, and the inclination of first oil net 20 and second oil net 22 changes in step in addition, improves the negative pressure distribution, promotes the smoking effect.

In some embodiments, the range hood 100 includes a driving assembly 32 and a connecting assembly 34, the driving assembly 32 is connected to the lifting assembly 14 through the connecting assembly 34, the lifting assembly 14 includes two guide plates 158, an included angle (greater than zero and less than 180 degrees) is formed between the two guide plates 18, each guide plate 18 is rotatably connected to the connecting assembly 34 and the body 12, and the distance between the two guide plate 18 portions 36 of the connecting body 12 is different when the lifting assembly 14 is located at different positions relative to the body 12. Thus, the smoking effect can be improved.

Specifically, when viewed from the side (left side or right side) of the range hood 100, the two guide plates 18 are connected to form a V-shaped structure, and the oil net of each guide plate 18 can form a smoke suction port 23, that is, the smoke suction ports 23 on both sides of the lifting assembly 14 are distributed in a V-shape.

During the descending process of the lifting assembly 14, the smoking port 23 descends and the inclination angle A of the smoking port 23 is changed (the negative pressure distribution can be optimized by increasing the inclination angle A, the inclination angle A of the guide plate 18 relative to the horizontal plane ranges from 35 degrees to 65 degrees, and the lifting height H of the lifting assembly 14 ranges from 100 mm to 250mm, as shown in FIG. 7).

With the elevator assembly 14 in the first position, the smoking ports 23 on both sides are provided by the first oil screens 20 on both sides. Under the condition that lifting unit 14 is located the second position, the mouth 23 of smoking of both sides is provided by first oil net 20 and the second oil net 22 of both sides, that is to say, under the condition that lifting unit 14 is located the first position, lifting unit 14 provides 2 mouths 23 of smoking, under the condition that lifting unit 14 is located the second position, lifting unit 14 provides 4 mouths 23 of smoking, lifting unit 14 is located the first position and switches to the second position promptly, 2 mouths 23 of smoking become 4 mouths 23 of smoking, lower part mouth 23 of smoking mainly inhales, upper portion mouth 23 of smoking assists and inhales, improve negative pressure distribution, promote smoking effect by a wide margin.

Referring to fig. 8, when viewed from the side of range hood 100, two air deflectors 18 and body 12 may form a triangle (as shown by the dotted line), the connecting line between two air deflectors 18 positions 36 connected to body 12 forms the bottom side of the triangle, and two air deflectors 18 form two waists of the triangle.

In the case where the lifting assembly 14 is located at different positions relative to the body 12, the length of the bottom side may vary, for example, as shown in fig. 10, after the lifting assembly 14 is lowered, the distance between the two baffle 18 portions 36 connected to the body 12 becomes smaller, the bottom side becomes shorter, and the vertex angle formed by the two waists becomes smaller. The entire triangle becomes more elongated and thus more conducive to distribution of negative pressure. Moreover, the shorter bottom edge can reduce the obstruction of the lifting assembly 14 to the user's view, and the user's spatial vision will be better during the whole operation process.

In some embodiments, referring to fig. 8, the body 12 includes a sliding member 38 and two opposite side plates 40, the side plates 40 are provided with sliding slots 42, the sliding member 38 is rotatably connected to the air deflector 18, the sliding member 38 is at least partially located in the sliding slots 42, and during the position change of the lifting assembly 14, the sliding member 38 slides in the sliding slots 42 to adjust the inclination angle of the air deflector 18 relative to the body 12. In this manner, baffle 18 may change the angle of inclination as a whole to accommodate changes in the position of lift assembly 14 during lifting of lift assembly 14.

Specifically, the upper end of baffle 18 may be partially positioned between two side plates 40, with slider 38 rotatably coupled to the upper end of baffle 18. The chute 42 may be inclined downwardly at an angle relative to horizontal. During the lifting process of the lifting assembly 14, the position of the lifting assembly 14 changes, the angle of inclination of the entire baffle 18 changes, and the position of the portion 36 of the baffle 18 connected to the body 12 also changes.

Specifically, in the descending process of the lifting assembly 14, the second oil net 22 is gradually exposed, the angle a is gradually increased, the included angle between the two guide plates 18 is gradually decreased, the guide plates 18 are more inclined, the positions of the guide plates 18 parts 36 of the connecting body 12 move downwards in an inclined manner, so that the distance between the two guide plates 18 parts 36 of the connecting body 12 is decreased, meanwhile, the exposed positions of the guide plates 18 are more, the guide plates 18 drive the sliding pieces 38 to move downwards in the sliding grooves 42, so as to adapt to the length change of the exposed positions of the guide plates 18, and meanwhile, the guide plates 18 can rotate relative to the sliding pieces 38, so as to adapt to the change of the inclination angle of the guide plates 18.

In some embodiments, a first side connection plate 44 is connected to each baffle 18, the first side connection plates 44 of different baffles 18 are spaced apart, and the lift assembly 14 includes a trim panel 46, the trim panel 46 covering a gap 48 between the two first side connection plates 44 to which different baffles 18 are connected. In this way, the gap 48 between the two first side connecting plates 44 can be prevented from affecting the smoking effect.

Specifically, a first side connecting plate 44 is fixed to each of the left side and the right side of each of the deflectors 18, and the arrangement of the first side connecting plates 44 can prevent oil smoke from entering the range hood 100 from the side.

A certain amount of space is required between the two first side connection plates 44 on the same side to allow each baffle 18 to move smoothly during the lifting process of the lifting assembly 14. The decorative plate 46 covers the gap 48 between the two first side connecting plates 44 on the same side, so that a negative pressure area is not formed on the side surface of the range hood 100 to influence the smoking effect of the guide plate 18.

In addition, the additional installation of a decorative plate 46 can also play an aesthetic role, can improve the overall appearance effect of the range hood 100, and can play a role in preventing hands from being clamped.

In some embodiments, one first side attachment plate 44 is attached to each side of each baffle 18, and lift assembly 14 includes a first connector 50, where first connector 50 connects two first side attachment plates 44. In this way, the strength of the deflector 18 can be ensured.

Specifically, because lampblack absorber 100 is longer (in an example, lampblack absorber 100 is about 1.2m long), guide plate 18 is also longer, and through setting up first connecting piece 50, can strengthen the intensity of guide plate 18, avoid guide plate 18 to warp or damage. The first connecting member 50 may connect the inner side surfaces of the two first side connecting plates 44 by means of, for example, a screw connection.

In some embodiments, the lift assembly 14 includes a base plate 52 and two second side connecting plates 54, the two second side connecting plates 54 are respectively disposed at two ends of the base plate 52 along the length direction, one second side connecting plate 54 is disposed between the two first side connecting plates 44 on the same side, the connecting assembly 34 connects the base plate 52 and the second side connecting plates 54, and the decorative plate 46 covers the gap 48 between the first side connecting plates 44 and the second side connecting plates 54. In this manner, the gap 48 between the first side connecting plate 44 and the second side connecting plate 54 is prevented from affecting the smoking effect.

Specifically, in the same side of range hood 100, one second side connecting plate 54 is located between two first side connecting plates 44, and two gaps 48 are formed between one second side connecting plate 54 and two first side connecting plates 44. The decorative plate 46 covers the two gaps 48, so that the two gaps 48 are prevented from forming a negative pressure area on the side surface of the range hood 100 to influence the smoking effect of the guide plate 18. Baffle 18 may rotate connection assembly 34. The shape of the trim panel 46 is adapted to the shape of the two first side attachment panels 44 and the one second side attachment panel 54 on the same side to provide a more aesthetically pleasing appearance. The trim panel 46 may be fixedly attached to the second side attachment panel 54.

The connection assembly 34 connects the base plate 52 and the second side attachment plate 54 to provide a smoother lifting assembly 14 during the lifting process.

In some embodiments, the lifting assembly 14 includes a bottom plate 52, the connecting assembly 34 includes a cross beam 56, the bottom plate 52 and the cross beam 56 extend along the length direction of the range hood 100, the cross beam 56 can be a through type cross beam, the length of the cross beam 56 is the same as that of the bottom plate 52, and the cross beam 56 is connected with the bottom plate 52. Therefore, the lifting synchronization of the two sides of the lifting component 14 can be realized, the inclination and the blocking are prevented, and the balanced lifting is realized.

Specifically, the inner side of the bottom of the air deflector 18 can be rotatably connected with a cross beam 56, please refer to fig. 9, the inner side of the bottom of the air deflector 18 is provided with a first reinforcing plate 55, the outer side of the cross beam is provided with a second reinforcing plate 57, and the first reinforcing plate 55 and the second reinforcing plate 57 can be connected through a rotating shaft. In this embodiment, because lampblack absorber 100 length is longer, about 1.2m, crossbeam 56 length is the same with bottom plate 52 length, and crossbeam 56 connects bottom plate 52 for when drive assembly 32 passes through coupling assembling 34 drive lifting unit 14 and goes up and down, crossbeam 56 can drive bottom plate 52 wholly synchronous lift, and then realizes that lifting unit 14 both sides (like the left and right sides) go up and down in step, prevents that the slope card from dying, realizes balanced lift.

In some embodiments, the lift assembly 14 includes a second side connecting plate 54, the second side connecting plate 54 is disposed at both ends of the bottom plate 52 along the length direction, the connecting assembly 34 includes a connecting portion 58, the connecting portion 58 is disposed at both ends of the cross beam 56 along the length direction, and the second side connecting plate 54 connects the connecting portion 58. In this way, the synchronous lifting of the two sides of the lifting assembly 14 is further ensured, and the connection strength between the bottom plate 52 and the connecting assembly 34 can be increased.

In some embodiments, the fan assembly 16 includes a volute 59 and a fan 60, the fan 60 is located in the volute 59, the volute 59 is opened with an air inlet 62, and an axis L1 of the air inlet 62 is perpendicular to the length direction of the baffle 18. Thus, the smoking effect can be improved.

Specifically, referring to fig. 9, the axis L1 of the air inlet 62 may be parallel to the drawing plane (in the left-right direction), the length direction of the baffle 18 may be perpendicular to the drawing plane, and when the fan 60 is started, a negative pressure is formed at the air inlet 62 of the volute 59 and oil smoke is sucked downwards. Because the axis L1 of the air inlet 62 is perpendicular to the length direction of the flow guide plate 18, after the oil smoke is sucked into the range hood 100 from the oil net, the oil smoke can reach the air inlet 62 through a short path, and is sucked by the fan 60 and discharged to the smoke pipe. It will be appreciated that in other embodiments, the axis L1 of the air inlet 62 may be oriented obliquely downward.

In addition, the arrangement direction of the fan assembly 16 is consistent with the length direction of the range hood 100, one air inlet 62 faces the user side, the fan assembly 16 is arranged in the center in the width direction of the range hood 100, and the two guide plates 18 are symmetrically arranged along the central axis L2 of the width side edge of the range hood 100, so that the smoking force formed by the fan 60 at the two guide plates 18 is basically the same.

When lifting unit 14 is located the second position, two second oil net 22 expose, form two smoking mouth 23 at the top, two first oil net 20 form two smoking mouth 23 in the lower part, and through the 23 diffusion negative pressures of smoking mouth 23 in a plurality of different position, promote holistic smoking effect, put the negative pressure of distribution lampblack absorber 100 both sides that can be better in the fan 60.

In some embodiments, please refer to fig. 9, the volute 59 is provided with two air inlets 62, the two air inlets 62 are respectively located on two opposite sides (left and right sides as shown in fig. 9) of the volute 59, the lifting assembly 14 includes two deflectors 18, an included angle is formed between the two deflectors 18, one of the deflectors 18 is located below one of the air inlets 62, and the other deflector 18 is located below the other air inlet 62. Thus, the smoking effect can be improved.

Specifically, the guide plate 18 is located below the air inlet 62 of the volute 59, so that the travel path of the oil smoke from the guide plate 18 to the volute 59 is reduced, and the smoking effect is improved. One air inlet 62 is directed towards the user side and one air inlet 62 is directed away from the user side.

In certain embodiments, an orthographic projection 63 of the first oil screen 20 on the volute 59 covers an orthographic projection 65 of the inlet 62 on the volute 59. In this way, the soot can be gathered toward the air inlet 62.

Specifically, the smoke port 23 formed by the first oil net 20 may serve as the main smoke port 23. Because the range hood 100 is overall longer, the first oil screen 20 is overall longer, the negative pressure area formed by the first oil screen 20 is larger, and the orthographic projection of the air inlet 62 on the volute 59 is positioned in the orthographic projection of the first oil screen 20 on the volute 59, when the fan 60 is started, the negative pressure formed at the air inlet 62 can be expanded through the first oil screen 20, and the expanded negative pressure area can basically cover the range of oil smoke of a kitchen range.

The orthographic projection 65 of the air inlet 62 on the volute 59 is located within the orthographic projection 63 of the first oil screen 20 on the volute 59, and it is understood that in length and width, the orthographic projection 65 of the air inlet 62 on the volute 59 is located within the boundary of the orthographic projection 63 of the first oil screen 20 on the volute 59.

For example, referring to fig. 15, an orthographic projection 63 of the first oil screen 20 on the volute 59 is rectangular, an orthographic projection 65 of the air inlet 62 on the volute 59 is rectangular, or is a straight line, and the rectangle or the straight line formed by the orthographic projection 65 of the air inlet 62 is located within a rectangular boundary formed by the orthographic projection 63 of the first oil screen 20.

In some embodiments, please refer to fig. 10 to 13, the body 12 includes a frame assembly 64 and a fixing assembly 66, the fan assembly 16 is disposed in the frame assembly 64, the fixing assembly 66 includes a mounting frame 68, a first cover plate 70 and a second cover plate 72, the frame assembly 64 is fixedly connected to the mounting frame 68 through the mounting plate 74, the first cover plate 70 is provided with a first notch 76, the second cover plate 72 is provided with a second notch 78, the first cover plate 70 is connected to the second cover plate 72 and jointly covers at least a portion of the mounting plate 74 and a top opening of the mounting frame 68, the first notch 76 and the second notch 78 jointly form a mounting opening 80, and the frame assembly 64 penetrates through the mounting opening 80 and is connected to the mounting frame 68. Therefore, the installation of the cover plate can be facilitated.

Specifically, the first cover plate 70 and the second cover plate 72 may be mounted using a snap-fit type. During installation, mounting plate 74 may be secured to the inside of mounting frame 68, frame assembly 64 may be mounted to mounting plate 74, first cover plate 70 may be mounted to mounting plate 74, and second cover plate 72 may be mounted to mounting plate 74, with first gap 76 and second gap 78 being offset from frame assembly 64. The first cover plate 70 and the second cover plate 72 are connected to form a frame-like structure that can be covered around a portion of the mounting plate 74 and the top opening of the mounting frame 68.

In the illustrated embodiment, the frame assembly 64 is generally rectangular in shape, and the mounting opening 80 defined by the first and second notches 76, 78 is square in shape. The frame assembly 64 and the mounting plate 74 may be attached by screws, welding, or the like.

In this embodiment, since the blower 60 is disposed in the middle, the cover plate is split into the first cover plate 70 and the second cover plate 72, which not only facilitates material saving and processing, but also facilitates installation.

The fan assembly 16 may be secured within the frame assembly 64. The top of the housing assembly 64 is provided with a check valve 82 and the outlet 83 of the volute 59 may be connected to the check valve 82. The connection assembly 34 may connect to the frame assembly 64. A smoke sensor may be installed on the side wall of the smoke passage upstream of the check valve 82 in the flow direction of the air flow. The soot sensor may include a light emitting unit and a light receiving unit.

In one embodiment, the light emitting unit and the light receiving unit are arranged along a straight line along the radial direction of the lampblack passage, and the light emitting path of the light emitting unit is basically aligned with the light receiving path of the light receiving unit.

When oil smoke passes through an oil smoke channel between the light emitting unit and the light receiving unit, due to the existence of oil smoke particles, light emitted by the light emitting unit is partially shielded, light intensity received by the light receiving unit can be reduced, and a light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is inversely related to the magnitude of the soot concentration.

In one embodiment, the light emitting unit and the light receiving unit may be arranged in a staggered manner along the circumferential direction of the lampblack channel, and an included angle larger than zero degrees and smaller than 180 degrees is formed between a light emitting path of the light emitting unit and a light receiving path of the light receiving unit.

When oil smoke passes through an oil smoke channel between the light emitting unit and the light receiving unit, due to the existence of oil smoke particles, light emitted by the light emitting unit is reflected, the light intensity received by the light receiving unit is increased, and the light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is positively correlated with the magnitude of the soot concentration.

The range hood 100 further comprises a decorative cover 81, and the decorative cover 81 is sleeved on the periphery of the rack assembly 64, so that the range hood 100 is more attractive.

In some embodiments, the range hood 100 includes a driving assembly 32 and a connecting assembly 34, the driving assembly 32 is connected to the lifting assembly 14 through the connecting assembly 34, the connecting assembly 34 includes a first fixing member 84, a second connecting member 86 and a second fixing member 88, the driving assembly 32 is fixed to the first fixing member 84, the second fixing member 88 is fixedly connected to the second connecting member 86 and the lifting assembly 14, the driving assembly 32 includes a sliding block 90 (see fig. 11), the sliding block 90 is connected to the second connecting member 86, the first fixing member 84 and the second fixing member 88 can slide relatively, and the first fixing member 84 is formed with a channel 98 for limiting the sliding of the second fixing member 88. In this way, the lifting assembly 14 can be lifted smoothly.

Specifically, the drive assembly 32 may include a motor 92, and the motor 92 may be a push rod motor. When the motor 92 is started, the slider 90 can be driven to move up and down to drive the second connecting member 86 to ascend and descend, and the second connecting member 86 drives the second fixing member 88 and the ascending and descending assembly 14 to ascend and descend. It is understood that in other embodiments, the motor 92 may be other types of motors and is not limited to a push rod motor. For example, the drive assembly 32 may include a gear set or lead screw by which the rotational motion of the motor drive shaft is converted into an up and down movement of the slide 90.

In the illustrated embodiment, a second fixing member 88 and a second connecting member 86 are fixedly connected to the cross member 56, the second fixing member 88 includes two, and the second connecting member 86 is located between the two second fixing members 88.

The first fastener 84 may be fixedly attached within the frame assembly 64. Referring to fig. 14, the first fixing member 84 includes a plate body 94 and two side wings 96, the two side wings 96 are respectively disposed on two sides of the plate body 94, and each side wing 96 is located outside a corresponding one of the second fixing members 88. The two lateral wings 96 are respectively arranged at the outer sides of the two second fixing pieces 88, and the channel 98 formed between the two lateral wings 96 can limit the second fixing pieces 88 when sliding, so that the lifting assembly 14 is ensured to be stably lifted.

In some embodiments, the first fixture 84 and the second fixture 88 are connected by a slide assembly 97. Therefore, the lifting smoothness of the lifting component 14 can be improved, and the clamping is avoided.

Specifically, the slide rail assembly 97 may include a first slide rail 95 and a second slide rail 93, and the first slide rail 95 and the second slide rail 93 may be connected by a ball (not shown). A first slide 95 is mounted on the outside of a second mount 88 and a second slide 93 is mounted on the inside of a wing 96. A second fixed member 88 and a lateral wing 96 are slidably connected through a first slide rail 95 and a second slide rail 93, so that the lifting assembly 14 can be lifted more smoothly, and the lifting assembly 14 is prevented from being locked.

In summary, the embodiment of the utility model provides a liftable middle-island range hood, when the oil smoke of a cooker is small, the oil smoke can be sucked away by keeping the smoke suction port 23 still; when the oil smoke of the kitchen range is large, the smoke suction port 23 descends and changes the inclination angle of the smoke suction port 23, 2 smoke suction ports 23 become 4 smoke suction ports 23, the lower smoke suction port 23 mainly sucks, the upper smoke suction port 23 assists in sucking, the negative pressure distribution is improved, and the smoke suction effect is greatly improved.

Specifically, when the oil smoke is small, the range hood 100 may not start to ascend and descend, and the oil smoke is sucked through two smoke suction ports 23 formed by the two first oil nets 20 at the lower part; when the oil smoke is great, lifting unit 14 can descend, becomes 4 smoking mouths 23 by 2 smoking mouths 23, and lower part smoking mouth 23 is main to be inhaled, and upper portion smoking mouth 23 is assisted and is inhaled, and the inclination A of the in-process adjustment guide plate 18 that descends moreover improves the negative pressure distribution, and approximate fit oil smoke rises the route, promotes the smoking effect by a wide margin.

In the description herein, references to the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 utility model. In this specification, schematic representations of the above terms 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 utility model, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A range hood, comprising:

the fan assembly comprises a body, wherein a fan assembly is arranged in the body;

the lifting assembly is movably connected with the body and comprises a guide plate, the guide plate is provided with a first oil net and a second oil net which are relatively fixed in position, the lifting assembly can be switched between a first position and a second position relative to the body, the first oil net is exposed out of the body and the second oil net is hidden in the body under the condition of the first position of the lifting assembly, and the first oil net and the second oil net are exposed out of the body under the condition of the second position of the lifting assembly.

2. The range hood according to claim 1, wherein the first oil screen is provided with a plurality of first smoke suction holes in a strip shape, and the plurality of first smoke suction holes are arranged at intervals along the length direction of the range hood.

3. A range hood as set forth in claim 1 or 2, wherein the second oil screen is a honeycomb-shaped oil screen structure.

4. A range hood as claimed in claim 1, wherein the flow guide plate comprises a first plate, a connecting plate and a second plate, the first plate is provided with the first oil net, the second plate is provided with the second oil net, the connecting plate comprises a first end and a second end which are opposite, the first plate is connected with the first end, the second plate is connected with the second end, and the first plate and the second plate are located on two opposite sides of the connecting plate.

5. A range hood as claimed in claim 1, wherein the overall length of the deflector is unchanged and the angle of inclination of the deflector relative to the body is different in the case where the lifting assembly is located at any position relative to the body.

6. A range hood as claimed in claim 1, wherein the range hood comprises a driving assembly and a connecting assembly, the driving assembly is connected with the lifting assembly through the connecting assembly, the lifting assembly comprises two guide plates, an included angle is formed between the two guide plates, each guide plate is rotatably connected with the connecting assembly and the body, and under the condition that the lifting assembly is located at different positions relative to the body, the distance between the two guide plate parts connected with the body is different.

7. A range hood as claimed in claim 6, characterized in that each deflector is connected to a first side connection plate, the first side connection plates of different deflectors are arranged at intervals, the lifting assembly comprises a decorative plate, and the decorative plate covers a gap between two first side connection plates to which different deflectors are connected.

8. A range hood as claimed in claim 6, wherein the lifting assembly comprises a base plate, the connecting assembly comprises a cross beam, the base plate and the cross beam extend along the length direction of the range hood, the length of the cross beam is the same as that of the base plate, and the cross beam is connected with the base plate.

9. The range hood of claim 1, wherein the fan assembly comprises a volute and a fan, the fan is located in the volute, an air inlet is formed in the volute, and the axis of the air inlet is perpendicular to the length direction of the guide plate.

10. A range hood as claimed in claim 1, wherein the body comprises a frame assembly and a fixing assembly, the fan assembly is arranged in the frame assembly, the fixing assembly comprises an installation frame, a first cover plate and a second cover plate, the frame assembly is fixedly connected with the installation frame through the installation plate, the first cover plate is provided with a first notch, the second cover plate is provided with a second notch, the first cover plate is connected with the second cover plate and covers at least one part of the installation plate and the top opening of the installation frame together, the first notch and the second notch form an installation opening together, and the frame assembly penetrates through the installation opening and is connected with the installation frame.

11. A range hood as claimed in claim 1, wherein the range hood comprises a driving assembly and a connecting assembly, the driving assembly is connected with the lifting assembly through the connecting assembly, the connecting assembly comprises a first fixing piece, a second connecting piece and a second fixing piece, the driving assembly is fixed on the first fixing piece, the second fixing piece is fixedly connected with the second connecting piece and the lifting assembly, the driving assembly comprises a sliding block, the sliding block is connected with the second connecting piece, the first fixing piece and the second fixing piece can slide relatively, and a channel for limiting the sliding of the second fixing piece is formed on the first fixing piece.

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