CN210951468U - Smoke collecting hood and range hood - Google Patents

Abstract

The utility model belongs to the technical field of the kitchen appliance technique and specifically relates to a collection petticoat pipe and lampblack absorber are related to. The fume collecting hood comprises a hood body provided with an air inlet and an air outlet which are communicated with each other, and a filtering oil net arranged at the air inlet; the filtering oil net is provided with a first silencing structure, and the first silencing structure at least partially projects into the air outlet along the vertical direction. This lampblack absorber includes above-mentioned collection petticoat pipe. An object of the utility model is to provide a collection petticoat pipe and lampblack absorber to alleviate the great technical problem of lampblack absorber operation in-process noise that exists among the prior art.

Description

Smoke collecting hood and range hood

Technical Field

The utility model belongs to the technical field of the kitchen appliance technique and specifically relates to a collection petticoat pipe and lampblack absorber are related to.

Background

The range hood is also called as a range hood, and is a kitchen appliance used for purifying the kitchen environment. The range hood generally comprises a machine body internally provided with a fan and a fume collecting cover connected to the machine body, wherein a large amount of oil fume is generated above a cooking bench in the cooking process, under the guiding and gathering effects of the fume collecting cover on the oil fume, the oil fume is firstly collected in a negative pressure area in the fume collecting cover, and then under the centrifugal effect of the fan, the purified oil fume is finally discharged to an external environment so as to achieve the purpose of purifying the kitchen environment.

Wherein, the lampblack absorber operation in-process can produce noise pollution, and current lampblack absorber noise reduction effect is relatively poor, receives the noise influence during the user cooks, probably produces uncomfortable feelings such as headache, dysphoria or palpitation, has greatly influenced the experience of user in the culinary art and has felt.

Therefore, the application provides a new smoke collecting hood and a range hood aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collection petticoat pipe to alleviate the great technical problem of lampblack absorber operation in-process noise that exists among the prior art.

An object of the utility model is to provide a lampblack absorber to further alleviate the great technical problem of lampblack absorber operation in-process noise that exists among the prior art.

Based on the first purpose, the utility model provides a smoke collecting hood, which comprises a hood body provided with an air inlet and an air outlet which are communicated with each other, and a filtering oil net arranged at the air inlet;

the filter oil net is provided with a first silencing structure, and the first silencing structure projects into the air outlet at least partially along the vertical direction.

Further, the first silencing structure is arranged on one side, close to the air outlet, of the oil filtering net.

Furthermore, the oil filtering screen comprises a first side plate and a first top plate, the first side plate and the first top plate are arranged at the top end of the first side plate in a surrounding manner, the first side plate and the first top plate together form an oil smoke gathering cavity, and the first side plate is fixedly connected to the hood body;

the first side plate is provided with a filter hole, the oil fume gathering cavity is communicated with the air outlet through the filter hole, and the first silencing structure is arranged on the first top plate.

Furthermore, the first silencing structure comprises a first silencing cover connected to the first top plate and a first silencing piece arranged between the first top plate and the first silencing cover, a third through hole is formed in the first silencing cover, and the first silencing piece is projected into the air outlet through the third through hole;

the first silencing cover is spaced from the first silencing piece through a first gap in the vertical direction.

Furthermore, the plane of the third through hole on the first silencing cover is inclined relative to the horizontal plane.

Furthermore, a first limiting protrusion is arranged in the first silencing cover, and the first silencing piece abuts against the first silencing cover through the first limiting protrusion.

Further, the thickness of the first silencing piece ranges from 15mm to 30mm, and the ratio of the first gap to the thickness of the first silencing piece is 2: 3.

Furthermore, a smoke collection cover is arranged between the air outlet and the filtering screen, and a smoke collection cavity communicated with the air outlet is formed between the smoke collection cover and the filtering screen;

the smoke collection cover is provided with a second silencing structure capable of silencing the airflow in the smoke collection cavity.

Furthermore, the smoke collection cover comprises a second side plate and a second top plate, the second side plate is connected with the second top plate in a surrounding mode, and the second top plate is arranged at the top end of the second side plate;

the second silencing structure is provided with a plurality of, a plurality of the second silencing structure is provided with in the second curb plate and/or the second roof.

Further, the cross-sectional area of the opening of the second side plate is gradually reduced from bottom to top along the up-down direction from bottom to top.

Further, the second side panel comprises a rear panel proximate the cage rear wall;

and the second silencing structure on the second side plate is arranged on the rear plate.

Further, second amortization structure set up in collection cigarette lid is kept away from one side in collection smoke chamber, the second through-hole has been seted up on the collection cigarette lid, second amortization structure pass through the second through-hole with collection smoke chamber intercommunication.

Furthermore, the plane of the second through hole on the smoke collection cover is inclined relative to the horizontal plane.

Furthermore, the second silencing structure comprises a second silencing cover connected to the smoke collection cover and a second silencing piece arranged between the smoke collection cover and the second silencing cover, the second silencing piece is arranged on one side, far away from the smoke collection cavity, of the smoke collection cover, and the second silencing piece is communicated with the smoke collection cavity through the second through hole;

from the centre of collection cigarette chamber outwards, the second amortization cover pass through the second clearance with second amortization spare interval.

Furthermore, a second limiting protrusion is arranged in the second silencing cover, and the second silencing piece is abutted to the second silencing cover through the second limiting protrusion.

Further, the thickness of the second silencing part ranges from 15mm to 30mm, and the ratio of the thickness of the second gap to the thickness of the second silencing part is 2: 3.

Adopt above-mentioned technical scheme, the utility model discloses an album petticoat pipe has following beneficial effect:

this collection petticoat pipe is when using, with the cover body coupling in the organism, and make the air outlet and the fan intercommunication in the organism, such setting, the indoor air that has mixed the oil smoke passes through behind the oil cleaner screen, discharges to the fan from the air outlet again to discharge to in the external environment through the fan. The air is easy to flow reversely under the reflection action of parts such as a fan and the like positioned outside the air outlet in the process of being discharged from the air outlet.

Because along upper and lower direction, first amortization structure is at least partial projection in the air outlet, also, along the extending direction of air outlet, from the air outlet first amortization structure of seeing through the air outlet outward, consequently first amortization structure can carry out noise cancelling treatment to the air current of refluence of reflection, for example through inhaling sound effect or damping effect realization noise cancelling treatment, prevent that the noise from passing through the air intake and discharging in the cover body, consequently, the great technical problem of noise of lampblack absorber operation in-process that exists among the prior art has been alleviated to this collection petticoat pipe.

Based on above-mentioned second purpose, the utility model provides a range hood, including the organism with the collection petticoat pipe, the cover body of collection petticoat pipe connect in the organism.

Adopt above-mentioned technical scheme, the utility model discloses a lampblack absorber has following beneficial effect:

through set up above-mentioned collection petticoat pipe in the lampblack absorber, corresponding, this lampblack absorber has all advantages of above-mentioned collection petticoat pipe, no longer gives unnecessary details here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a range hood provided by an embodiment of the present invention;

fig. 2 is a sectional view of the range hood provided by the embodiment of the present invention;

fig. 3 is a sectional view of the range hood shown in fig. 2 in a direction a;

fig. 4 is a sectional view of the range hood shown in fig. 2 in a direction B;

fig. 5 is a front view of a smoke collecting hood provided by the embodiment of the invention;

FIG. 6 is a cross-sectional view in the direction C-C of the fume collecting hood shown in FIG. 5;

fig. 7 is a partial structural cross-sectional view of a smoke collecting hood according to an embodiment of the present invention;

fig. 8 is a second partial sectional view of the exhaust fume collecting hood according to the embodiment of the present invention;

fig. 9 is a partially enlarged view of a portion F of the fume collecting hood shown in fig. 8;

fig. 10 is a partially enlarged view of a portion G of the fume collecting hood shown in fig. 8;

fig. 11 is a partially enlarged view of a portion H of the fume collecting hood shown in fig. 8;

fig. 12 is a partial structural exploded view of a smoke collecting hood according to an embodiment of the present invention.

Icon: 1-a cover body; 11-an air inlet; 12-an air outlet;

2-filtering an oil screen; 21-a first side panel; 211-filtration pores; 22-a first top panel; 23-collecting the oil smoke cavity;

3-a first sound attenuating structure; 31-a first muffling cover; 311-third via; 32-a first noise dampening member; 33-a first gap;

4-smoke collecting cover; 41-smoke collecting cavity; 42-a second side plate; 421-a rear plate; 43-a second top panel; 44-a second via;

5-a second sound-deadening structure; 51-a second sound dampening cover; 511-a second limit projection; 52-a second sound attenuating element; 53-second gap;

6-organism.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

Example one

Referring to fig. 2 to 4, the present embodiment provides a smoke collecting hood, which includes a hood body 1 having an air inlet 11 and an air outlet 12 communicated with each other, and a filter oil net 2 disposed at the air inlet 11; the filtering oil screen 2 is provided with a first silencing structure 3, and along the up-down direction, at least part of the first silencing structure 3 projects into the air outlet 12.

When the smoke collecting hood is used, the hood body 1 is connected to the machine body 6, the air outlet 12 is communicated with a fan in the machine body 6, and in the arrangement, after air mixed with oil smoke indoors passes through the oil filtering net 2, the air is discharged to the fan from the air outlet 12 and is discharged to the external environment through the fan. In the process of exhausting air from the air outlet 12, the air is easily reflected by components located outside the air outlet 12, such as a fan, and flows in a reverse direction.

Because along upper and lower direction, first sound-absorbing structure 3 is at least partial projection in air outlet 12, that is, along the extending direction of air outlet 12, from air outlet 12 outer through the visible first sound-absorbing structure 3 of air outlet 12, consequently first sound-absorbing structure 3 can carry out noise reduction to the air current of reflection backward flow, for example through inhaling sound effect or damping effect and realize noise reduction, prevent that the noise from passing through air intake 11 and discharging from covering body 1 in, consequently, the great technical problem of noise has been alleviated to this collection petticoat pipe in the lampblack absorber operation in-process that exists among the prior art.

Optionally, the outlet 12 has a regular shape such as a circle, a rectangle or a square.

Optionally, a first through hole is formed in the oil filter screen 2, the first silencing structure 3 is disposed on a side of the oil filter screen 2 away from the air outlet 12, and the first silencing structure 3 projects into the air outlet 12 through the first through hole, or, preferably, referring to fig. 2-4 in combination with fig. 9, the first silencing structure 3 is disposed on a side of the oil filter screen 2 close to the air outlet 12.

When the first silencing structure 3 is arranged on one side of the filtering oil screen 2 close to the air outlet 12, the air which is reflected and returned can directly contact with the first silencing structure 3, so that the first silencing structure 3 can carry out silencing treatment on the air flow.

When first silencing structure 3 sets up in the one side of crossing oil cleaner screen 2 and keeping away from air outlet 12, the air of reflection backward flow can be through first through-hole and the contact of first silencing structure 3 to first silencing structure 3 carries out amortization to the air current.

Preferably, the first through holes are provided in a plurality of rows and columns on the first top plate 22, so as to increase the contact area between the airflow and the first silencing structure 3, thereby increasing the silencing effect.

Preferably, referring to fig. 2 and fig. 3, and with reference to fig. 7, the oil filtering screen 2 includes a first side plate 21 and a first top plate 22 disposed at the top end of the first side plate 21, the first side plate 21 and the first top plate 22 together form an oil smoke collecting cavity 23, and the first side plate 21 is fixedly connected to the cover body 1; the first side plate 21 is provided with a filter hole 211, the oil smoke collecting cavity 23 is communicated with the air outlet 12 through the filter hole 211, and the first silencing structure 3 is arranged on one side of the first top plate 22 close to the air outlet 12.

That is, the first silencing structure 3 is disposed outside the oil fume collecting chamber 23.

During cooking, air mixed with oil smoke in the room can be collected in the oil smoke collecting cavity 23, pass through the filter hole 211 and then be discharged from the air outlet 12. Wherein, the oil smoke collecting cavity 23 is arranged to facilitate the collection of indoor air and prevent oil smoke from escaping to a certain extent. In addition, the first silencing structure 3 is disposed on one side of the first top plate 22 close to the air outlet 12 to prevent the first silencing structure 3 from occupying the space of the oil smoke collecting cavity 23 and affecting the oil smoke collecting effect of the oil smoke collecting cavity 23 on the oil smoke.

Preferably, the first side plate 21 is formed by a plurality of first plates in a surrounding manner, and each first plate is provided with a plurality of filter holes 211 arranged in multiple rows and multiple columns, so that the oil smoke absorption efficiency of the range hood is improved, in addition, the air flow is dispersed to flow into the plurality of filter holes 211, the flow speed of the air flow is relatively average, and the noise at the filter holes 211 is reduced.

Optionally, the fume collecting hood is provided with one or more air intakes 11. Preferably, referring to fig. 3 to 5, the fume collecting hood is provided with two air inlets 11, so that air can be dispersedly sucked into the range hood during cooking, the flow rate of the air flow is reduced, and thus the noise of the air flow is reduced.

Preferably, the oil filtering net 2 is integrally formed, so that the production efficiency of the oil filtering net 2 is improved, and the processing cost of the oil filtering net 2 is reduced.

Preferably, referring to fig. 8 and 9, the first silencing structure 3 includes a first silencing cover 31 connected to the first top plate 22 and a first silencing piece 32 disposed between the first top plate 22 and the first silencing cover 31, a third through hole 311 is disposed on the first silencing cover 31, and the first silencing piece 32 is projected into the air outlet 12 through the third through hole 311.

The first muffling cover 31 is spaced from the first muffling member 32 by the first gap 33 in the up-down direction, or the first top plate 22 is spaced from the first muffling member 32 by the first gap 33 in the up-down direction, or both the first muffling cover 31 and the first top plate 22 are spaced from the first muffling member 32 by the first gap 33 in the up-down direction.

Preferably, the first muffling cover 31 is spaced from the first muffling member 32 by a first gap 33 in the up-down direction.

Wherein, the setting of first clearance 33, after first amortization piece 32 is to the air current amortization processing, the air current can gather in first clearance 33, forms the air bed in first clearance 33, and the air bed can increase the effective thickness of first amortization piece 32, improves the absorption effect to low frequency noise.

Preferably, referring to fig. 3 and 6, a smoke collection cover 4 is arranged in the cover body 1, the smoke collection cover 4 is arranged between the air outlet 12 and the oil filter screen 2, a smoke collection cavity 41 communicated with the air outlet 12 is formed between the smoke collection cover 4 and the oil filter screen 2, and the smoke collection cavity 23 is communicated with the smoke collection cavity 41 through a filter hole 211; the smoke collection cover 4 is provided with a second silencing structure 5 which can carry out silencing treatment on the airflow in the smoke collection cavity 41.

Referring to fig. 2 and 4, the dotted line is a flow path of the airflow, wherein, during cooking, the air collected in the soot-collecting chamber 23 can enter the soot-collecting chamber 41 through the filter hole 211 and be discharged from the air outlet 12. Wherein, carry out amortization to the air current that gets into in the collection smoke chamber 41 through second amortization structure 5, prevent to a certain extent that the noise from getting into the fan through air outlet 12, further alleviated the great technical problem of noise among the prior art lampblack absorber operation in-process noise that exists.

Preferably, with continuing reference to fig. 6 and with reference to fig. 12, in the present embodiment, the smoke collection cover 4 includes a second side plate 42 and a second top plate 43 disposed at the top end of the second side plate 42, and the second side plate 42 is connected to the cover body 1.

Alternatively, the second silencing structure 5 is provided in plurality, and a plurality of second silencing structures 5 are provided on the second side plate 42; alternatively, a plurality of second silencing structures 5 are provided, and a plurality of second silencing structures 5 are provided on the second top plate 43. Preferably, the second silencing structure 5 is provided in plurality, and a plurality of second silencing structures 5 are provided to the second side plate 42 and the second top plate 43.

It should be noted that the airflow entering the smoke collecting cavity 41 through the filtering hole 211 can impact the second top plate 43 and the second side plate 42, wherein the airflow impacting the second top plate 43 is silenced by the second silencing structure 5 arranged on the second top plate 43, and the airflow impacting the second side plate 42 is silenced by the second silencing structure 5 arranged on the second side plate 42, so as to improve the comprehensiveness of the airflow silencing treatment, and further reduce the noise generated by the range hood.

Preferably, referring to fig. 6, the cross-sectional area of the opening of the second side plate 42 is gradually reduced from the bottom to the top.

It should be noted that, referring to fig. 1 and fig. 6, the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in fig. 1 and fig. 6.

That is, the end of the second side plate 42 remote from the second top plate 43 is inclined in a direction away from the smoke collection chamber 41. Such setting has increased the volume in collection smoke chamber 41, therefore has improved the collection cigarette effect in collection smoke chamber 41, in addition, makes the greasy dirt of adhesion in second curb plate 42 can follow second curb plate 42 fair current to in collect the greasy dirt, prevent to a certain extent that the greasy dirt is direct from second curb plate 42 drippage and pollute the top of a kitchen range.

Preferably, referring to fig. 6, 7 and 11, the second side plate 42 is formed by connecting a plurality of second plate members, and after the smoke collecting hood is hung, the second plate member close to the rear wall of the hood body 1 is a rear plate member 421; the second silencing structure 5 on the second side plate 42 is disposed on the back plate 421.

Note that the second panel on the side opposite to the rear panel 421 is a front panel, that is, the front panel is disposed near the front wall of the housing 1.

It should be noted that, referring to fig. 1 and fig. 6, the terms "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in fig. 1 and fig. 6.

With this arrangement, the airflow entering the smoke collecting chamber 41 can impinge on the second top plate 43 and the second side plate 42, wherein the airflow impinging on the second top plate 43 is muffled by the second muffling structure 5 provided on the second top plate 43. In addition, referring to fig. 6, the smoke collection chamber 41 has a larger space on the side close to the rear panel 421, so that the amount of air taken into the smoke collection chamber 41 on the side close to the rear panel 421 is larger, and the air flow impacting the rear panel 421 can be muffled by the second muffling structure 5 arranged on the rear panel 421; with continued reference to fig. 6, the space of the smoke collection chamber 41 on the side close to the front plate is smaller, so the amount of air input on the side close to the front plate of the smoke collection chamber 41 is smaller, the noise of the part of air flow is smaller, and therefore the second silencing structure 5 does not need to be arranged on the front plate.

Optionally, the second silencing structure 5 is arranged on one side of the smoke collection cover 4 close to the smoke collection cavity 41; or, preferably, referring to fig. 7 and 8, the second silencing structure 5 is disposed on a side of the smoke collection cover 4 away from the smoke collection cavity 41, a second through hole 44 is formed in the smoke collection cover 4, and the second silencing structure 5 is communicated with the smoke collection cavity 41 through the second through hole 44.

Wherein, when second sound deadening structure 5 set up in the one side that second roof 43 is close to collection smoke chamber 41, the air in collection smoke chamber 41 can directly contact with second sound deadening structure 5 to second sound deadening structure 5 carries out amortization to the air current. When second silencing structure 5 sets up in the one side that second roof 43 kept away from smoke collecting cavity 41, the air in smoke collecting cavity 41 can pass through second through-hole 44 and contact with second silencing structure 5 to second silencing structure 5 carries out sound deadening to the air current.

Preferably, the second through holes 44 are provided in plurality, and the plurality of second through holes 44 are arranged on the second top plate 43 in multiple rows and multiple columns, so as to increase the contact area between the airflow and the second silencing structure 5, thereby improving the silencing effect.

In addition, when second silencing structure 5 is disposed on one side of back plate 421 close to smoke collecting cavity 41, the air in smoke collecting cavity 41 can directly contact with second silencing structure 5, so that second silencing structure 5 can perform silencing treatment on the air flow. When second silencing structure 5 sets up the one side that collection smoke chamber 41 was kept away from to back plate 421, the air in collection smoke chamber 41 can pass through second through-hole 44 and the contact of second silencing structure 5 to second silencing structure 5 carries out amortization to the air current.

Preferably, referring to fig. 6, the second silencing structure 5 includes a second silencing cover 51 connected to the fume collecting cover 4 and a second silencing piece 52 disposed between the fume collecting cover 4 and the second silencing cover 51, the second silencing piece 52 is disposed on a side of the fume collecting cover 4 away from the fume collecting cavity 41, and the second silencing piece 52 is communicated with the fume collecting cavity 41 through the second through hole 44.

Alternatively, referring to fig. 10, the second silencing cover 51 is spaced from the second silencing piece 52 by a second gap 53 from the center of the smoke collection chamber 41 to the outside, or the smoke collection cover 4 is spaced from the second silencing piece 52 by a second gap 53 from the center of the smoke collection chamber 41 to the outside; alternatively, both the second muffling cover 51 and the fume collecting cover 4 are spaced from the second muffling member 52 by the second gap 53 from the center of the fume collecting chamber 41 to the outside.

Preferably, the second muffling enclosure 51 is spaced from the second muffling element 52 by a second gap 53, outwardly from the center of the smoke collection chamber 41.

Specifically, when the second silencing structure is provided on the second top plate 43, it is preferable that both the second silencing cover 51 and the second top plate 43 are spaced from the second silencing piece 52 by the second gap 53. When the second silencing structure is provided to the back plate member 421, it is preferable that both the second silencing cover 51 and the back plate member 421 are spaced from the second silencing member 52 by the second gap 53.

With the second gap 53, after the second silencing element 52 silences the airflow, the airflow can gather in the second gap 53, and an air layer is formed in the second gap 53, so that the effective thickness of the second silencing element 52 can be increased, and the low-frequency noise absorption effect is improved.

In summary, with this arrangement, the amount of the first silencing part 32 and the second silencing part 52 used is reduced, and the cost investment is reduced.

In addition, the second silencing element 52 is disposed on a side of the smoke collection cover 4 away from the smoke collection chamber 41 to prevent the second silencing structure 5 from occupying the space of the smoke collection chamber 41 and affecting the air suction effect of the smoke collection chamber 41.

Optionally, the first muffling cover 31 and the second muffling cover 51 are made of a silicone material.

Optionally, a first limiting protrusion is disposed in the first sound-deadening hood 31, and the first sound-deadening member 32 abuts against the first sound-deadening hood through the first limiting protrusion. Referring to fig. 12, a second limiting protrusion 511 is disposed in the second sound-deadening cap 51, and the second sound-deadening member 52 abuts against the second sound-deadening cap 51 through the second limiting protrusion 511.

For example, the first limit projection is formed by the edge-burring of the first muffling cover 31, and the second limit projection 511 is formed by the edge-burring of the second muffling cover 51.

With this arrangement, the first muffling cover 31 is spaced from the first muffling element 32 by the first gap 33, and the second muffling cover 51 is spaced from the second muffling element 52 by the second gap 53.

Preferably, the thickness of the first sound attenuating element 32 and the second sound attenuating element 52 each range from 15mm to 30 mm; the ratio of the thickness of the first gap 33 to the first sound-deadening member 32 is 2:3, and the ratio of the thickness of the second gap 53 to the second sound-deadening member 52 is 2: 3.

This arrangement provides the best sound deadening effect for the first sound deadening member 32 and the air layer in the first gap 33, and provides the best sound deadening effect for the second sound deadening member 52 and the air layer in the second gap 53.

Alternatively, the first sound attenuating element 32 may have a thickness of 15mm, 20mm, 25mm, 30mm, or the like, and the second sound attenuating element 52 may have a thickness of 15mm, 20mm, 25mm, 30mm, or the like.

Optionally, the plane of the third through hole 311 on the first muffling cover 31 is inclined relative to the horizontal plane; alternatively, the plane of the second through hole 44 on the smoke collection cover 4 is inclined relative to the horizontal plane. Preferably, the plane of the third through hole 311 on the first muffling cover 31 is inclined relative to the horizontal plane, and the plane of the second through hole 44 on the fume collecting cover 4 is inclined relative to the horizontal plane.

After the smoke collecting hood is hung, the plane where the second through holes 44 are located on the smoke collecting hood 4 is inclined relative to the horizontal plane, specifically, when the second silencing structure 5 is arranged on the second top plate 43, the second top plate 43 is inclined relative to the horizontal plane, and when the second silencing structure 5 is arranged on the second side plate 42, the second side plate 42 is inclined relative to the horizontal plane.

Due to the arrangement, oil stains adhered to the first silencing cover 31 or the smoke collection cover 4 can flow downstream along the first silencing cover 31 or the smoke collection cover 4, the second through hole 44 or the third through hole 311 is prevented from being blocked by the oil stains to a certain extent, and the service lives of the first silencing structure 3 and the second silencing structure 5 are prolonged. In addition, the second top plate 43 is inclined relative to the horizontal plane, and the second side plate 42 is inclined relative to the horizontal plane, so that the airflow entering the fume collecting cavity 41 through the fume collecting cavity 23 has a certain impact angle when impacting the second top plate 43 and the second side plate 42, thereby reducing the impact energy of the airflow and further reducing the noise of the airflow.

Preferably, referring to fig. 2, the second top plate 43 forms an angle d with the horizontal plane, preferably, the angle d is in the range of 5 ° to 10 °.

Preferably, the plane of the third through hole 311 on the first muffling hood 31 is parallel to the plane of the air inlet 11 on the fume collecting hood, so that the plane of the air inlet 11 forms an angle e with the horizontal plane, and therefore, the plane of the third through hole 311 forms an angle e with the horizontal plane, and preferably, the angle of the angle e ranges from 15 ° to 20 °.

Example two

The second embodiment provides a range hood, the range hood comprises the smoke collecting hood of the first embodiment, technical features of the smoke collecting hood disclosed by the first embodiment are also applicable to the first embodiment, and technical features of the smoke collecting hood disclosed by the first embodiment are not described repeatedly. The following describes embodiments of the range hood in further detail with reference to the accompanying drawings.

Referring to fig. 1-4, the range hood provided in this embodiment includes a body 6 and the above-mentioned smoke collecting hood, and the hood body 1 of the smoke collecting hood is connected to the body 6, so as to further alleviate the technical problem of relatively large noise in the operation process of the range hood in the prior art.

The range hood of the embodiment has the advantages of the smoke collecting hood of the embodiment one, which are described in detail in the embodiment one and will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (17)

1. A smoke collecting hood is characterized by comprising a hood body (1) and a filter screen (2), wherein the hood body (1) is provided with an air inlet (11) and an air outlet (12) which are communicated with each other, and the filter screen (2) is arranged at the air inlet (11);

the oil filtering net (2) is provided with a first silencing structure (3), and at least part of the first silencing structure (3) is projected in the air outlet (12) along the vertical direction.

2. A fume collecting hood according to claim 1, characterized in that the first silencing structure (3) is arranged on the side of the filter screen (2) close to the air outlet (12).

3. The fume collecting hood according to claim 2, characterized in that the filter screen (2) comprises a first side plate (21) and a first top plate (22) arranged at the top end of the first side plate (21), the first side plate (21) and the first top plate (22) together form a fume collecting chamber (23), and the first side plate (21) is fixedly connected to the hood body (1);

the first side plate (21) is provided with a filter hole (211), the oil smoke gathering cavity (23) is communicated with the air outlet (12) through the filter hole (211), and the first silencing structure (3) is arranged on the first top plate (22).

4. A fume collecting hood according to claim 3, characterized in that the first silencing structure (3) comprises a first silencing cover (31) connected to the first top plate (22) and a first silencing piece (32) arranged between the first top plate (22) and the first silencing cover (31), the first silencing piece (31) is provided with a third through hole (311), and the first silencing piece (32) is projected into the air outlet (12) through the third through hole (311);

the first muffling cover (31) is spaced from the first muffling member (32) by a first gap (33) in the vertical direction.

5. A fume collecting hood according to claim 4, characterized in that the plane of the third through holes (311) on the first muffling hood (31) is inclined to the horizontal plane.

6. A fume collecting hood according to claim 4, characterized in that a first limit projection is provided in the first silencing hood (31), by means of which the first silencing piece (32) abuts against the first silencing hood (31).

7. A fume collecting hood according to claim 4, characterized in that the thickness of the first sound attenuating element (32) ranges from 15mm to 30mm, and the ratio of the first gap (33) to the thickness of the first sound attenuating element (32) is 2: 3.

8. A fume collecting hood according to any of the claims 1-7, characterized in that a fume collecting cover (4) is arranged between the air outlet (12) and the filter screen (2), and a fume collecting cavity (41) communicated with the air outlet (12) is formed between the fume collecting cover (4) and the filter screen (2);

the smoke collection cover (4) is provided with a second silencing structure (5) which can carry out silencing treatment on the airflow in the smoke collection cavity (41).

9. A fume collecting hood according to claim 8, characterized in that the fume collecting cover (4) comprises a second side plate (42) and a second top plate (43) arranged at the top end of the second side plate (42), the second side plate (42) is connected to the hood body (1);

the second silencing structure (5) is provided in plurality, and the second silencing structure (5) is provided in plurality on the second side plate (42) and/or the second top plate (43).

10. A fume collecting hood according to claim 9, characterized in that the cross sectional area of the second side plate (42) opening is gradually reduced from bottom to top.

11. A fume collecting hood according to claim 9, characterized in that said second side panel (42) comprises a rear panel (421) close to the rear wall of the hood (1);

and a second silencing structure (5) on the second side plate (42) is arranged on the rear plate piece (421).

12. A fume collecting hood according to claim 8, characterized in that the second silencing structure (5) is arranged on one side of the fume collecting cover (4) far away from the fume collecting cavity (41), a second through hole (44) is arranged on the fume collecting cover (4), and the second silencing structure (5) is communicated with the fume collecting cavity (41) through the second through hole (44).

13. A fume collecting hood according to claim 12, characterized in that the plane of the second through holes (44) on the fume collecting cover (4) is inclined with respect to the horizontal plane.

14. A fume collecting hood according to claim 12, characterized in that the second silencing structure (5) comprises a second silencing piece (52) connected to the fume collecting cover (4) and arranged between the fume collecting cover (4) and the second silencing piece (51), the second silencing piece (52) is arranged at the side of the fume collecting cover (4) far away from the fume collecting cavity (41), and the second silencing piece (52) is communicated with the fume collecting cavity (41) through the second through hole (44);

the second silencing cover (51) is spaced from the second silencing piece (52) by a second gap (53) from the center of the smoke collection cavity (41) to the outside.

15. A fume collecting hood according to claim 14, characterized in that a second limit projection (511) is provided in the second muffling hood (51), and the second muffling member (52) abuts against the second muffling hood (51) through the second limit projection (511).

16. A fume collecting hood according to claim 14, characterized in that the thickness of the second sound-attenuating piece (52) ranges from 15mm to 30mm, and the ratio of the second gap (53) to the thickness of the second sound-attenuating piece (52) is 2: 3.

17. A range hood, characterized in that it comprises a body (6) and a fume collecting hood according to any one of claims 1 to 16, the hood body (1) of which is connected to the body (6).

Images