CN209165507U - Range hood - Google Patents

Abstract

The utility model discloses a kind of range hood, the range hood includes fan shroud, exhaust fume collecting hood, preceding noise reducing plate and rear noise reducing plate.Blowing machine chamber is limited in the fan shroud, the blower is intracavitary to be equipped with blower, the exhaust fume collecting hood is located at the lower section of the fan shroud, and limit the smoke collecting chamber being connected to the blower chamber, the smoke collecting chamber has oil smoke import, it is intracavitary that the preceding noise reducing plate is located at the blower, and it is located at the axial front side of the blower, it is intracavitary to be located at the blower for noise reducing plate after described, and it is located at the axial rear side of the blower, the preceding noise reducing plate and the rear noise reducing plate are all formed as the plate extended along the radial direction of the blower.The operating noise of range hood is reduced, client's user satisfaction of range hood is improved due to being respectively equipped with preceding noise reducing plate and rear noise reducing plate on rear side of axial front side and axial direction positioned at blower in the intracavitary portion of blower according to the range hood of the utility model embodiment.

Description

Range hood

Technical field

The utility model relates to field of kitchen electric appliance equipment field more particularly to a kind of range hoods.

Background technique

Smoke exhaust ventilator is basic on the market at present to enter universal state, key cities for smoke machine demand to height Endization, personalization, intelligent development.The major critical component for influencing smoke exhaust ventilator actual effect includes blower, air duct, suction inlet knot Structure etc..Wherein, the wind turbine layout mode of different installation sites and the aesthetic appearance of flow passage structure shape and wanting for anufacturability Asking all may cause air and unavoidably there is uneven distribution state in flow process, influence the distribution of speed and pressure, into And lead to the non-uniform Distribution state in smoke exhaust ventilator suction inlet near sites flow field, it is unfavorable for smoke absorption effect, and in certain journey Increase the operating noise of range hood on degree.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions The operating noise of a kind of range hood out, the range hood is smaller.

According to the range hood of the utility model embodiment, comprising: fan shroud, the fan shroud is interior to limit blowing machine chamber, The blower is intracavitary to be equipped with blower；Exhaust fume collecting hood, the exhaust fume collecting hood are located at the lower section of the fan shroud, and limit and the blower The smoke collecting chamber of chamber connection, the smoke collecting chamber have oil smoke import；Preceding noise reducing plate, it is intracavitary that the preceding noise reducing plate is located at the blower, And it is located at the axial front side of the blower；Noise reducing plate afterwards, it is intracavitary that the rear noise reducing plate is located at the blower, and is located at the blower Axial rear side；Wherein, the preceding noise reducing plate and the rear noise reducing plate are all formed as the radial direction extension along the blower Plate.

According to the range hood of the utility model embodiment, due to being respectively equipped with the axial direction positioned at blower in the intracavitary portion of blower The preceding noise reducing plate and rear noise reducing plate of front side and axial rear side, reduce the operating noise of range hood, improve range hood Client's user satisfaction.

In some embodiments, the upper end of the preceding noise reducing plate is connected with the wainscot of the fan shroud, the preceding noise reduction The lower end of plate is connected by the first flange with the front face of the fan shroud, first flange, the preceding noise reducing plate, the wind Preceding noise reduction cavity is limited between the front panel of the wainscot of hood and the fan shroud.

In some specific embodiments, first flange lower than the blower spiral case bottom, and with it is described The lowermost spacing of spiral case is L1, and L1 meets relational expression: 20mm≤L1≤25mm.

In some embodiments, the upper end of the rear noise reducing plate is connected with the wainscot of the fan shroud, the rear noise reduction The lower end of plate is connected by the second flange with the rear surface of the fan shroud, second flange, the rear noise reducing plate, the wind Rear noise reduction cavity is limited between the squab panel of the wainscot of hood and the fan shroud.

In some specific embodiments, second flange lower than the blower spiral case bottom, and with it is described The lowermost spacing of spiral case is L2, and L2 meets relational expression: 20mm≤L2≤25mm.

In some embodiments, multiple bloops are equipped on the preceding noise reducing plate and the rear noise reducing plate, are dropped before described Make an uproar plate porosity be q1, it is described after noise reducing plate porosity be q2, q1 and q2 meet relational expression, q1=q2≤3%.

In some specific embodiments, the diameter of each bloop is d1, the center of two neighboring bloop away from Meet relational expression, 1mm≤d3≤5mm, and L3/d1 >=5 for L3, d1 and L3.

In some embodiments, the rear surface of the air inlet of the blower towards the fan shroud is arranged, the fume-exhausting Machine further includes the shunting grid for being located between the rear noise reducing plate and the spiral case of the blower and closing on the spiral case setting.

In some specific embodiments, the range hood further includes the deflector being located in the exhaust fume collecting hood, institute It states deflector and is located at the blower and the lower section for shunting grid, by the cooking fume conductance in the exhaust fume collecting hood to the wind The rear surface of hood flows.

In some embodiments, the range hood, further includes: condensation grid, the condensation grid are located at the collection On the siding far from the fan shroud of petticoat pipe, the condensation grid is equipped with multiple front-rear directions along the exhaust fume collecting hood and extends Air-permeating hole to constitute the oil smoke import.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the internal structure chart of the range hood of the utility model embodiment.

Fig. 2 is the internal structure chart of the other direction of range hood described in Fig. 1.

Fig. 3 is the internal structure chart of the range hood of the utility model another embodiment.

Appended drawing reference:

Range hood 100,

Fan shroud 10, blower chamber 110,

Exhaust fume collecting hood 20, smoke collecting chamber 210,

Preceding noise reducing plate 30a, preceding noise reduction cavity 310a, the first flange 320a, bloop 330,

Afterwards noise reducing plate 30b, rear noise reduction cavity 310b, the second flange 320b,

Deflector 40a, grate opening 410a,

Shunt grid 40b, grille strip 410b

Left noise reducing plate 50a, left noise reduction cavity 510a

Right noise reducing plate 50b, right noise reduction cavity 510b,

Partition 60, distributary division 610, diversion division 620,

Condense grid 70, air-permeating hole 710, auxiliary air-permeating hole 720,

Blower 80, air inlet 810.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Below with reference to Fig. 1-Fig. 3 description according to the specific structure of the range hood 100 of the utility model embodiment.

As shown in Figure 1, including fan shroud 10, exhaust fume collecting hood 20, preceding drop according to the range hood 100 of the utility model embodiment Make an uproar plate 30a and rear noise reducing plate 30b, and blowing machine chamber 110 is limited in fan shroud 10, is equipped with blower 80, exhaust fume collecting hood 20 in blower chamber 110 It is located at the lower section of fan shroud 10, and limits the smoke collecting chamber 210 being connected to blower chamber 110, smoke collecting chamber 210 has oil smoke import, Preceding noise reducing plate 30a is located in blower chamber 110, and is located at the axial front side of blower 80, and rear noise reducing plate 30b is located in blower chamber 110, And it is located at the axial rear side of blower 80, preceding noise reducing plate 30a and rear noise reducing plate 30b are all formed as prolonging along the radial direction of blower 80 The plate stretched.

It is understood that due to being respectively equipped with inside blower chamber 110 after the axial front side and axial direction of blower 80 The preceding noise reducing plate 30a and rear noise reducing plate 30b of side, therefore, the meeting of the outside radiated noise when rotated of blower 80 is in preceding noise reducing plate Decay under the action of noise reducing plate 30b after 30a, to reduce the noise generated when blower 80 rotates.At the same time, preceding drop The plate 30a and rear noise reducing plate 30b that makes an uproar can also reduce making an uproar for the cooking fume miscarriage life flowed in blower chamber 110 to a certain extent Sound.In addition, the plate that preceding noise reducing plate 30a and rear noise reducing plate 30b are formed as the radial direction extension along blower 80 being capable of certain journey Guarantee that it, to noise alleviation ability, further reduced the operating noise of range hood 100 on degree.

According to the range hood 100 of the utility model embodiment, due to being respectively equipped with inside blower chamber 110 positioned at blower The preceding noise reducing plate 30a and rear noise reducing plate 30b of 80 axial front side and axial rear side, reduce the operating noise of range hood 100, Improve client's user satisfaction of range hood 100.

It needs exist for, it is emphasized that preceding noise reducing plate 30a and rear noise reducing plate 30b are formed as tabular, is only to show preceding noise reduction The surface of the face blower 80 of plate 30a and rear noise reducing plate 30b is plane, and there is no to preceding noise reducing plate 30a's and rear noise reducing plate 30b Shape makes specific restriction.That is, in the embodiments of the present invention, preceding noise reducing plate 30a and rear noise reducing plate 30b can be with Be formed as the various shapes such as circle, rectangle, sector.

In some embodiments, as shown in Figure 1, the upper end of preceding noise reducing plate 30a is connected with the wainscot of fan shroud 10, preceding drop The make an uproar lower end of plate 30a is connected by the first flange 320a with the front face of fan shroud 10, the first flange 320a, preceding noise reducing plate 30a, Noise reduction cavity 310a before being limited between the wainscot of fan shroud 10 and the front panel of fan shroud 10.It is understood that preceding noise reduction The upper end and lower end of plate 30a is connect with the siding of fan shroud 10, the connective stability of noise reducing plate 30a before capable of guaranteeing in this way, The vibrating noise that noise reducing plate 30a is generated under the action of oil smoke air-flow before reducing, reduces range hood to a certain extent 100 operating noise.Further, since noise reduction cavity 310a before being formed between preceding noise reducing plate 30a and fan shroud 10, therefore, more preferably The decayed operating noise of blower 80 of ground improves customer experience to reduce the operating noise of range hood 100.

In some specific embodiments, as shown in Figure 1, bottom of the first flange 320a lower than the spiral case of blower 80, And with the lowermost spacing of spiral case be L1, L1 meets relational expression: 20mm≤L1≤25mm.It is understood that if first The spiral case bottom that flange 320a is higher than blower 80 then will lead to preceding noise reducing plate 30a and preceding noise reduction cavity 310a in the radial direction of blower 80 Size is smaller on direction, decaying energy of the noise reduction cavity 310a and preceding noise reducing plate 30a to 80 operating noise of blower before reducing in this way Power.But if the bottom of the first flange 320a and 80 spiral case of blower is apart from farther out, it is likely that noise reducing plate 30a stretches before causing Enter smoke collecting chamber 210 to influence the phenomenon that oil smoke air-flow flows.Therefore, the first flange 320a is located to the spiral case of blower 80 Lower end, and will both can guarantee preceding noise reduction cavity 310a and preceding noise reducing plate 30a to wind therebetween away from control between 20mm-25mm The damping capacity of 80 operating noise of machine, noise reducing plate 30a protrudes into smoke collecting chamber 210 to influence the flowing of oil smoke air-flow before in turn avoiding The phenomenon that occur.Certainly, what needs to be explained here is that, the specific location of the first flange 320a is not limited to above-mentioned position, and first The specific location of flange 320a can make specific adjustment according to the size of blower chamber 110, the spiral case of blower 80.In addition, first The extending direction of flange 320a vertical with the front face of fan shroud 10 can also be can be with out of plumb, the first flange 320a Plate is also possible to the arc panel with certain radian, does not make specific restriction to size, the shape of the first flange 320a herein.

In some embodiments, rear to drop as shown in Figure 1, the upper end of rear noise reducing plate 30b is connected with the wainscot of fan shroud 10 The make an uproar lower end of plate 30b is connected by the second flange 320b with the rear surface of fan shroud 10, the second flange 320b, rear noise reducing plate 30b, Rear noise reduction cavity 310b is limited between the wainscot of fan shroud 10 and the squab panel of fan shroud 10.It is understood that rear noise reduction The upper end and lower end of plate 30b is connect with the siding of fan shroud 10, the connective stability of noise reducing plate 30b after capable of guaranteeing in this way, The vibrating noise that rear noise reducing plate 30b is generated under the action of oil smoke air-flow is reduced, reduces range hood to a certain extent 100 operating noise.Further, since being formed with rear noise reduction cavity 310b between rear noise reducing plate 30b and fan shroud 10, therefore, more preferably The decayed operating noise of blower 80 of ground improves customer experience to reduce the operating noise of range hood 100.

In some specific embodiments, the second flange 320b lower than blower 80 spiral case bottom, and with spiral case The lowermost spacing is L2, and L2 meets relational expression: 20mm≤L2≤25mm.It is understood that if the second flange 320b high It then will lead to rear noise reducing plate 30b and rear noise reduction cavity 310b in the size in the radial direction of blower 80 in the spiral case bottom of blower 80 It is smaller, damping capacity of the noise reduction cavity 310b and rear noise reducing plate 30b to 80 operating noise of blower after reducing in this way.But if The bottom distance of two flange 320b and 80 spiral case of blower is farther out, it is likely that cause rear noise reducing plate 30b protrude into smoke collecting chamber 210 from And influence the phenomenon that oil smoke air-flow flows.Therefore, the second flange 320b is located to the spiral case lower end of blower 80, and by two The spacing of person controls between 20mm-25mm, and noise reduction cavity 310b and rear noise reducing plate 30b works to blower 80 after not only improving guarantee Noise alleviation ability in turn avoids the phenomenon that rear noise reducing plate 30b protrudes into smoke collecting chamber 210 to influence the flowing of oil smoke air-flow hair It is raw.What needs to be explained here is that the specific location of the second flange 320b is not limited to above-mentioned position, the second flange 320b's is specific Position can make specific adjustment according to the size of blower chamber 110, the spiral case of blower 80.In addition, the extension of the second flange 320b Direction vertical with the rear surface of fan shroud 10 can also can be plate with out of plumb, the second flange 320b and be also possible to have The arc panel of certain radian does not make specific restriction to size, the shape of the second flange 320b herein.

In some embodiments, as shown in Figure 1, being equipped with multiple bloops on preceding noise reducing plate 30a and rear noise reducing plate 30b The porosity of 330, preceding noise reducing plate 30a are q1, and the porosity of rear noise reducing plate 30b is that q2, q1 and q2 meet relational expression, q1=q2≤ 3%.It is understood that being equipped with bloop 330 on preceding noise reducing plate 30a and rear noise reducing plate 30b, be conducive to improve preceding noise reducing plate The erasure effect of 30a and rear noise reducing plate 30b, to further reduced the operating noise of range hood 100.Certainly, left noise reduction The porosity of plate 50a and right noise reducing plate 50b also select other numerical value, however it is not limited to the range less than or equal to 3%.

In some specific embodiments, the diameter of each bloop 330 is d1, the center of two neighboring bloop 330 Away from meeting relational expression, 1mm≤d3≤5mm, and L3/d1 >=5 for L3, d1 and L3.It is understood that above-mentioned bloop 330 Relevant parameter is only to guarantee more preferably selecting for erasure effect, is not the concrete restriction to the relevant parameter of bloop 330, also It is to say that the design parameter of bloop 330 can select according to the actual situation.

Certainly, what needs to be explained here is that, in the other embodiments of the utility model, preceding noise reducing plate 30a and rear noise reduction Only has one in plate 30b equipped with being not provided with bloop on bloop 330 or preceding noise reducing plate 30a and rear noise reducing plate 30b 330。

In some embodiments, it as shown in figure 3, the rear surface of the air inlet 810 of blower 80 towards fan shroud 10 is arranged, inhales Kitchen ventilator 100 further includes the shunting grid 40b for being located between rear noise reducing plate 30b and the spiral case of blower 80 and closing on spiral case setting. It is understood that the oil smoke air-flow enabled into blower 80 is arranged in the air inlet 810 that shunting grid 40b corresponds to blower 80 More uniform and stable ensure that 80 output gas flow flow of blower, to ensure that the oil pumping of range hood 100 to a certain extent Cigarette effect.At the same time, the contact area for shunting grid 40b and oil smoke air-flow is increased, to improve 40b pairs of grid of shunting The condensation effect of oil smoke air-flow, to improve the filter effect of range hood 100.In addition, cell structure also helps absorption The noise that blower 80 generates when rotating, to reduce the operating noise of range hood 100.

In some specific embodiments, as shown in figure 3, range hood 100 further includes the water conservancy diversion being located in exhaust fume collecting hood 20 Plate 40a, deflector 40a are located at blower 80 and shunt the lower section of grid 40b, by the cooking fume conductance in exhaust fume collecting hood 20 to blower The rear surface flowing of cover 10.

It is understood that after oil smoke air-flow enters smoke collecting chamber 210 from oil smoke import, since the water conservancy diversion of deflector 40a is made With so that oil smoke air-flow is towards flowing on rear side of blower chamber 110, so that most of cooking fume flows through the air inlet of blower 80 810 enter blower 80, are conducive to blower 80 and a large amount of oil smoke air-flows are discharged, avoid oil smoke air-flow in the spiral case and wind of blower 80 Vortex is generated between hood 10 increases oil smoke air-flow in the accumulation of blower chamber 110 to reduce the oil suction effect of range hood 100 The phenomenon that rate reduces.At the same time, oil smoke air-flow touches deflector 40a, deflector 40a energy before entering blower 80 It is enough that cooking fume stream is condensed, so that condensed small oil droplet slides, the filter effect to oil smoke air-flow is effectively promoted.

In some more specific embodiments, as shown in figure 3, the front end of deflector 40a is connected with fan shroud 10, and water conservancy diversion One end that it is connected with the inner wall of fan shroud 10 is closed on plate 40a is equipped with grate opening 410a.It is understood that in cooking fume When flowing to blower chamber 110 after flowing into smoke collecting chamber 210, although most oil smoke air-flow enters under the action of deflector 40a The rear side of blower chamber 110, but the oil smoke air-flow for also having fraction is deposited in deflector 40a and the inner wall of fan shroud 10 connects Place is met, such that there are local eddy currents inside range hood 100, to influence the smoke pumping effect of range hood 100.Cause This, one end that it is connected with the inner wall of fan shroud 10 is closed on deflector 40a and is equipped with grate opening 410a, enables to accumulate Cooking fume stream in the 10 inner wall junction deflector 40a and fan shroud passes through the air inlet that grate opening 410a enters blower 80 810, it is possible thereby to the vortex phenomenon inside range hood 100 be reduced, to guarantee the smoke absorption effect of range hood 100.When So, grate opening 410a can be spaced apart along the left and right directions of fan shroud 10, can be guaranteed in deflector 40a and fan shroud 10 in this way The cooking fume of wall surface junction flows to air inlet 810.

Supplementary explanation is needed exist for, deflector 40a can be formed as lamina, can also be formed as double-deck hardened Structure, when deflector 40a is formed as double panel structure, deflector 40a includes the upper plate being spaced apart along the vertical direction and lower plate, Upper plate is also provided with noise reduction hole.

Furthermore, it is necessary to which, it is emphasized that range hood 100 can not include point in the other embodiments of the utility model Grid 40b and deflector 40a is flowed, but including partition 60.As shown in Fig. 2, partition 60 includes diversion division 620 and distributary division 610, Diversion division 620 is obliquely located at the bottom of blower 80, and one end of diversion division 620 is connected with the front panel of fan shroud 10, diversion division In a rearward direction upwards along stretching, the lower end of distributary division 610 is connected on the other end of diversion division 620 620 other end, and The upper end of distributary division 610 is extended upward, and the upper end of distributary division 610 is higher than the spiral case bottom wall of blower 80 and is lower than air inlet 810 lower edge.Here the effect of diversion division 620 is similar to the effect of deflector 40a, the effect of distributary division 610 and shunting lattice Grid 40b is similar, and details are not described herein.Replace shunting grid 40b and deflector 40a that can simplify range hood using partition 60 100 structure reduces the production cost of range hood 100.

In some embodiments, as shown in Fig. 2-Fig. 3, range hood 100 further includes condensation grid 70, condenses grid 70 It is located on the siding of separate fan shroud 10 of exhaust fume collecting hood 20, condensation grid 70 is equipped with multiple front and backs along the exhaust fume collecting hood 20 The air-permeating hole 710 that direction extends is to constitute oil smoke import.It is understood that the range hood 100 of the utility model is working When, after condensing grid 70, mist of oil is condensed into droplet under the action of condensing grid 70 and falls into range hood 100 oil smoke In catchment cup, flue gas is discharged outdoor through entering inside fan shroud 10 inside exhaust fume collecting hood 20 under the driving of blower 80.Exist as a result, Setting condensation grid 70, which can play, on the wall surface of the separate fan shroud 10 of exhaust fume collecting hood 20 improves range hood 100 to the mistake of oil smoke Effect is filtered, users' satisfaction degree is improved.

In some specific embodiments, as shown in Fig. 2-Fig. 3, condensation grid 70 is formed towards 10 protrusion of fan shroud Structure and including roof and around multiple side walls of roof setting, is equipped with air-permeating hole 710 on roof, at least one side wall Air-permeating hole 720 is assisted, assists the extending direction of the extending direction and air-permeating hole 710 of air-permeating hole 720 orthogonal.

It is understood that since air-permeating hole 710 and auxiliary air-permeating hole 720 are mutually perpendicular to, and air-permeating hole 710 is located at roof Above air-permeating hole 720 is assisted to be located on side wall, lead to air-permeating hole 710 and assist the length of air-permeating hole 720 inconsistent, reduced in this way Flue gas is by air-permeating hole 710 and air-permeating hole 720 is assisted to condense the noise that grid 70 vibrates, improve client use it is comfortable Degree.

In addition, condensation grid 70 is formed on the siding of separate fan shroud 10 of exhaust fume collecting hood 20, and condense the formation of grid 70 For towards the structure of the protrusion of fan shroud 10, such geometries shrink overall dimensions of exhaust fume collecting hood 20 avoid traditional fume-exhausting Machine 100 is also easy to produce the phenomenon that user's head collision exhaust fume collecting hood 20, improves the use peace of the range hood 100 of the utility model Quan Xing.

In some embodiments, it is equipped with as shown in Fig. 2-Fig. 3, inside exhaust fume collecting hood 20 and is spaced apart distribution along the direction of left and right Left noise reducing plate 50a and right noise reducing plate 50b, oil smoke import is between left noise reducing plate 50a and right noise reducing plate 50b.It is understood that It is that the internal perisporium of left noise reducing plate 50a and exhaust fume collecting hood 20 can limit left noise reduction cavity 510a, right noise reducing plate 50b and exhaust fume collecting hood 20 Internal perisporium limit right noise reduction cavity 510b.That is the right and left of oil smoke import is equipped with noise reduction cavity, in this way can be into The operating noise of one step reduction range hood 100.

In some specific embodiments, as shown in Fig. 2-Fig. 3, the profile edge of left noise reducing plate 50a with exhaust fume collecting hood 20 Internal perisporium be connected, the profile edge of right noise reducing plate 50b is connected with the internal perisporium of exhaust fume collecting hood 20.It is understood that left drop The make an uproar profile edge of plate 50a is connected with the internal perisporium of exhaust fume collecting hood 20, that is to say, that left noise reduction cavity 510a is formed as one and more seals The chamber closed, it is possible thereby to improve the noise reduction effect of left noise reduction cavity 510a, it is thus also avoided that oil smoke air-flow is directly entered left noise reduction cavity The phenomenon that smoke pumping effect of 510a reduction range hood 100, occurs.The profile edge of right noise reducing plate 50b is interior with exhaust fume collecting hood 20 Peripheral wall is connected with identical effect, and details are not described herein.Certainly, in some embodiments of the utility model, left noise reducing plate 50a Can also only it be connected on one side with the internal perisporium of exhaust fume collecting hood 20 with right noise reducing plate 50b.

In some more specific embodiments, as shown in Fig. 2-Fig. 3, left noise reducing plate 50a and right noise reducing plate 50b are downward Mutual direction is directed away from direction to extend.It is understood that due in a downward direction, left noise reducing plate 50a and the right side Noise reducing plate 50b is directed away from mutual direction and extends, that is to say, that the part of the connection of smoke collecting chamber 210 and blower chamber 110 to Under direction under width be gradually increased so that cooking fume can be in left noise reducing plate 50a and right noise reducing plate when flowing into inlet air machine cavity 110 Gather under the action of 50b, thus further improves the smoke pumping effect of range hood 100.

Embodiment 1:

According to Fig. 1-Fig. 2, the range hood 100 of the present embodiment includes fan shroud 10, exhaust fume collecting hood 20, preceding noise reducing plate 30a, rear noise reducing plate 30b, deflector 40a, partition 60, left noise reducing plate 50a and right noise reducing plate 50b.Outlet air is limited in fan shroud 10 Machine cavity 110, blower chamber 110 is interior to be equipped with blower 80, and exhaust fume collecting hood 20 is located at the lower section of fan shroud 10, and limits and blower chamber 110 The smoke collecting chamber 210 of connection, smoke collecting chamber 210 have oil smoke import, and preceding noise reducing plate 30a is located in blower chamber 110, and are located at blower 80 Axial front side, rear noise reducing plate 30b is located in blower chamber 110, and is located at the axial rear side of blower 80, preceding noise reducing plate 30a and after Noise reducing plate 30b is all formed as the plate extended along the radial direction of blower 80.

Left noise reducing plate 50a and right noise reducing plate 50b are located inside exhaust fume collecting hood 20, and are spaced apart distribution, oil along the direction of left and right Cigarette import is between left noise reducing plate 50a and right noise reducing plate 50b.The profile edge of left noise reducing plate 50a is interior with exhaust fume collecting hood 20 Peripheral wall is connected, and the profile edge of right noise reducing plate 50b is connected with the internal perisporium of exhaust fume collecting hood 20.Left noise reducing plate 50a and right noise reducing plate 50b is directed away from mutual direction in a downward direction and extends.

The upper end of preceding noise reducing plate 30a is connected with the wainscot of fan shroud 10, and the lower end of preceding noise reducing plate 30a passes through the first flange 320a is connected with the front face of fan shroud 10, and the left end of preceding noise reducing plate 30a is connected with the left wall face of fan shroud 10, preceding noise reducing plate The right end of 30a is connected with the right wall of fan shroud 10.First flange 320a, preceding noise reducing plate 30a, fan shroud 10 wainscot and Noise reduction cavity 310a before being limited between the front panel of fan shroud 10.First flange 320a is lower than the bottom of the spiral case of blower 80, And with the lowermost spacing of spiral case be L1, L1 meets relational expression: 20mm≤L1≤25mm.

The upper end of noise reducing plate 30b is connected with the wainscot of fan shroud 10 afterwards, and the lower end of rear noise reducing plate 30b passes through the second flange 320b is connected with the rear surface of fan shroud 10, and the left end of rear noise reducing plate 30b is connected with the left wall face of fan shroud 10, rear noise reducing plate The right end of 30b is connected with the right wall of fan shroud 10.Second flange 320b, rear noise reducing plate 30b, fan shroud 10 wainscot and Rear noise reduction cavity 310b is limited between the squab panel of fan shroud 10.Second flange 320b is lower than the bottom of the spiral case of blower 80, And with the lowermost spacing of spiral case be L2, L2 meets relational expression: 20mm≤L2≤25mm.

Multiple bloops 330 are equipped on preceding noise reducing plate 30a and rear noise reducing plate 30b, the porosity of preceding noise reducing plate 30a is The porosity of q1, rear noise reducing plate 30b are that q2, q1 and q2 meet relational expression, q1=q2≤3%.The diameter of each bloop 330 is D1, the center of two neighboring bloop 330 is away from meeting relational expression, 1mm≤d3≤5mm, and L3/d1 >=5 for L3, d1 and L3.

Partition 60 includes diversion division 620 and distributary division 610, and diversion division 620 is obliquely located at the bottom of blower 80, diversion division 620 one end is connected with the front side wall of fan shroud 10, and the other end of diversion division 620 upwards along stretching, shunts in a rearward direction The lower end in portion 610 is connected on the other end of diversion division 620, and the upper end of distributary division 610 is extended upward.Distributary division 610 Upper end be higher than blower 80 spiral case bottom wall and be lower than air inlet 810 lower edge.

Condensation grid 70 is located on the siding of separate fan shroud 10 of exhaust fume collecting hood 20, and condensation grid 70 is equipped with multiple along institute The air-permeating hole 710 of front-rear direction extension of exhaust fume collecting hood 20 is stated to constitute the oil smoke import.Condensation grid 70 is formed towards wind The structure of the protrusion of hood 10 and it is equipped with air-permeating hole 710 including roof and on multiple side walls of roof setting, roof, extremely The auxiliary air-permeating hole 720 of a few side wall, assists the extending direction of the extending direction and air-permeating hole 710 of air-permeating hole 720 to hang down mutually Directly.

The range hood 100 of the present embodiment, has the advantage that

(1) preceding noise reducing plate 30a and rear noise reducing plate 30b, the operating noise for blower 80 of having decayed are equipped in blower chamber 110；

(2) left noise reducing plate 50a and right noise reducing plate 50b, the operating noise for blower 80 of having decayed are equipped in smoke collecting chamber 210；

(3) bottom of exhaust fume collecting hood 20 is equipped with towards 10 protrusion condensation grid 70 of fan shroud, improves range hood 100 Filter effect reduces the size of range hood 100, reduces the possibility that user's head bumps against exhaust fume collecting hood 20.

(4) partition 60 is equipped in blower chamber 110, and the import of blower 80 is arranged towards rear, reduces oil smoke air-flow and exists Vortex is generated between the spiral case and fan shroud 10 of blower 80, is reduced oil smoke air-flow in the accumulation of blower chamber 110, be ensure that suction The oil absorption efficiency of kitchen ventilator 100.

Embodiment 2:

As shown in figure 3, the structure of the range hood 100 of the present embodiment is substantially the same with embodiment 1, except that this reality It applies and is equipped with deflector 40a in the range hood 100 of example and shunts grid 40b without including partition 60.Description below as a result, In, in the present embodiment, identical structure is not repeated with previous embodiment (embodiment 1), and only describes deflector 40a With the specific structure for shunting grid 40b.

As shown in figure 3, deflector 40a is obliquely located at the bottom of blower 80, one end of deflector 40a and fan shroud 10 Front side wall be connected, the other end of deflector 40a is in a rearward direction upwards along stretching.Shunting grid 40b includes multiple grids 410b, the both ends of each grille strip 410b are connected with the side wall of fan shroud 10 respectively, and multiple grille strip 410b are along fan shroud 10 Up and down direction be spaced apart.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (10)

1. a kind of range hood characterized by comprising

Fan shroud, the fan shroud is interior to limit blowing machine chamber, and the blower is intracavitary to be equipped with blower；

Exhaust fume collecting hood, the exhaust fume collecting hood are located at the lower section of the fan shroud, and limit the smoke collecting chamber being connected to the blower chamber, institute Smoke collecting chamber is stated with oil smoke import；

Preceding noise reducing plate, the preceding noise reducing plate are located at that the blower is intracavitary, and are located at the axial front side of the blower；

Noise reducing plate afterwards, it is described after noise reducing plate be located at that the blower is intracavitary, and be located at the axial rear side of the blower；Wherein, described Preceding noise reducing plate and the rear noise reducing plate are all formed as the plate extended along the radial direction of the blower.

2. range hood according to claim 1, which is characterized in that the upper end of the preceding noise reducing plate and the fan shroud Wainscot is connected, and the lower end of the preceding noise reducing plate is connected by the first flange with the front face of the fan shroud, and described first turns over Side, the preceding noise reducing plate, the wainscot of the fan shroud and the fan shroud front panel between limit preceding noise reduction cavity.

3. range hood according to claim 2, which is characterized in that first flange is lower than the spiral case of the blower Bottom, and be L1 with the lowermost spacing of the spiral case, L1 meets relational expression: 20mm≤L1≤25mm.

4. range hood according to claim 1, which is characterized in that the upper end of noise reducing plate and the fan shroud after described Wainscot is connected, and the lower end of the rear noise reducing plate is connected by the second flange with the rear surface of the fan shroud, and described second turns over Rear noise reduction cavity is limited between side, the squab panel of noise reducing plate, the wainscot of the fan shroud and the fan shroud afterwards.

5. range hood according to claim 4, which is characterized in that second flange is lower than the spiral case of the blower Bottom, and be L2 with the lowermost spacing of the spiral case, L2 meets relational expression: 20mm≤L2≤25mm.

6. range hood according to claim 1, which is characterized in that be all provided on the preceding noise reducing plate and the rear noise reducing plate There are multiple bloops, the porosity of the preceding noise reducing plate is q1, and the porosity of the rear noise reducing plate is that q2, q1 and q2 meet relationship Formula, q1=q2≤3%.

7. range hood according to claim 6, which is characterized in that the diameter of each bloop be d1, adjacent two The center of a bloop is away from meeting relational expression, 1mm≤d3≤5mm, and L3/d1 >=5 for L3, d1 and L3.

8. range hood according to claim 1, which is characterized in that the air inlet of the blower is towards the fan shroud Rear surface setting, the range hood further include being located between the rear noise reducing plate and the spiral case of the blower and closing on described The shunting grid of spiral case setting.

9. range hood according to claim 8, which is characterized in that it further include the deflector being located in the exhaust fume collecting hood, The deflector is located at the blower and the lower section for shunting grid, by the cooking fume conductance in the exhaust fume collecting hood to described The rear surface of fan shroud flows.

10. range hood according to claim 1, which is characterized in that further include: condensation grid, the condensation grid are set On the siding far from the fan shroud of the exhaust fume collecting hood, the condensation grid is equipped with multiple front and backs along the exhaust fume collecting hood The air-permeating hole that direction extends is to constitute the oil smoke import.