CN220250099U - Range hood and coaming assembly thereof - Google Patents

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a range hood and a coaming assembly thereof. The coaming assembly of the range hood comprises a coaming main body and a plurality of sound absorbing pieces, wherein a columnar installation space is formed in the coaming main body, the sound absorbing pieces are attached to the side wall of the coaming main body facing the installation space, the sound absorbing pieces are distributed at intervals along the circumferential direction of the installation space, the sound absorbing pieces extend along the axial direction of the installation space, and the sound absorbing pieces are distributed in a staggered manner along the axial direction of the installation space. Through with a plurality of sound absorbing members interval setting on installation space's inner wall, and along installation space's axis direction staggered distribution, a plurality of sound absorbing members limit together and fall the noise that the space of making an uproar in order to absorb the range hood and produce, fall the noise that the space of making an uproar in installation space axis direction length is greater than the length of sound absorbing members, the required sound absorbing members that obtains the same noise reduction effect are fewer to the cost of making an uproar of cooking fume exhauster has been reduced.

Description

Range hood and coaming assembly thereof

Technical Field

The application relates to the technical field of kitchen appliances, in particular to a range hood and a coaming assembly thereof.

Background

The range hood is an electric appliance which is indispensable to modern kitchens, and can collect and discharge the oil smoke generated in the cooking process to the outside rapidly, thereby purifying the air environment of the kitchen. In the operation process of the range hood, the impeller rotates at a high speed, and the gas flows at a high speed to generate noise, so that the use experience of a user is affected. In the related art, in order to reduce noise of the range hood, the noise reduction structure is excessively designed, which causes an increase in cost of the range hood and an increase in resistance of air flow inside the range hood.

Disclosure of Invention

The application provides a range hood and coaming subassembly thereof for solve among the prior art range hood noise big, fall the defect that the cost of making an uproar is high, realize reducing range hood noise, control and fall the cost of making an uproar.

The application provides a range hood's bounding wall subassembly, inhale the sound piece including bounding wall main part and many, have columnar installation space in the bounding wall main part, inhale the sound piece and paste and locate the bounding wall main part orientation on the lateral wall of installation space, many inhale the sound piece is followed installation space's circumference direction distributes, and is many inhale the sound piece is followed installation space's axis direction extends, and many inhale the sound piece and follow installation space's axis direction staggered distribution.

According to the coaming assembly of the range hood, the coaming main body comprises a first coaming, a second coaming, a third coaming and a fourth coaming which are connected end to end in sequence, the first coaming to the fourth coaming define the installation space,

at least one of the first and third coamings is provided with the sound absorbing member.

According to the coaming assembly of the range hood, the length of the sound absorbing piece is L, and the length of the overlapping part of any two adjacent sound absorbing pieces in the circumferential direction of the first cavity is L1, wherein L1 is more than or equal to 0.5L.

According to the coaming assembly of the range hood, when the sound absorbing pieces are arranged on the first coaming, a plurality of sound absorbing pieces are arranged on the first coaming;

when the sound absorbing pieces are arranged on the third coaming, a plurality of sound absorbing pieces are arranged on the third coaming.

The application also provides a range hood, including:

a volute assembly having an air inlet side and an air outlet side;

the coaming assembly is the coaming assembly of the range hood, the volute assembly is arranged in the installation space, the air inlet side is communicated with the installation space, the air outlet side is communicated with the outside of the installation space, the air outlet side is positioned at the end part of the axis direction of the installation space, and at least one sound absorbing piece is opposite to the air inlet side.

According to the range hood that this application provided, the bounding wall main part includes first bounding wall, first bounding wall with the air inlet side is relative, be equipped with two on the first bounding wall inhale sound piece.

According to the range hood provided by the application, the periphery of the first coaming comprises a first edge, a second edge and a third edge which are sequentially connected, wherein the first edge and the third edge are parallel, the air outlet side coincides with the second edge, and the air outlet of the volute assembly is closer to the first edge than the third edge;

the two sound absorbing pieces positioned on the first coaming are a first sound absorbing piece and a second sound absorbing piece, the first sound absorbing piece is positioned at the first edge, and the second sound absorbing piece is positioned at the third edge;

the vertical distance between the first sound absorbing piece and the second edge is greater than the vertical distance between the second sound absorbing piece and the second edge.

According to the range hood provided by the application, the center of the projection of the volute component on the first coaming is used as the center of a circle, the first coaming is divided into a first area, a second area, a third area and a fourth area, one sound absorbing piece is located in the first area and the second area, the other sound absorbing piece is located in the third area and the fourth area, and the orthographic projection of the air outlet of the volute component on the first coaming is located in the fourth area.

According to the range hood provided by the application, the overlapping area of the sound absorbing piece and the third area is larger than or equal to the overlapping area of the sound absorbing piece and the fourth area.

According to the range hood provided by the application, the range hood further comprises a box body, the box body is connected with the coaming assembly, the installation space is communicated with the inside of the box body,

the box body is provided with a smoke inlet and an opening and closing panel, and the opening and closing panel is used for adjusting the opening of the smoke inlet.

The utility model provides a coaming subassembly of range hood, through with a plurality of sound absorbing member intervals setting on installation space's inner wall, and along installation space's axis direction staggered distribution, a plurality of sound absorbing members limit together and fall the noise that the space of making an uproar produced in order to absorb the range hood, fall the noise that the space of making an uproar in installation space axis direction length is greater than the length of sound absorbing member, the required sound absorbing member that obtains the same noise reduction effect is less to the cost of making an uproar of range hood has been reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present disclosure;

fig. 2 is a perspective view of a shroud assembly of a range hood provided in an embodiment of the present application;

FIG. 3 is a schematic view of a first enclosure of an enclosure assembly provided in an embodiment of the application;

fig. 4 is a schematic view of a partial structure of a range hood according to an embodiment of the present application.

Reference numerals:

100. a range hood;

110. a coaming assembly; 111. a sound absorbing member; 112. a coaming body; 113. a first coaming; 1131. a first edge; 1132. a second edge; 1133. a third edge;

a first zone A; a second zone B; a third zone C; a fourth zone D;

120. a volute assembly; 121. an air outlet side; 122. an air inlet side;

130. a case; 131. a smoke inlet; 132. and opening and closing the panel.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. 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 describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The range hood and its shroud assembly of the present application are described below in connection with fig. 1-4. It can be appreciated that the range hood is a common kitchen appliance, and the range hood can collect and discharge the oil smoke generated in the cooking process into a room to purify the indoor air. Noise in the working process of the range hood mainly comes from mechanical noise generated by motor rotation and pneumatic noise generated by gas flow.

Referring to fig. 1, a range hood 100 according to an embodiment of the present application includes: a volute assembly 120 and a shroud assembly 110. Specifically, the volute assembly 120 has an air inlet side 122 and an air outlet side 121, the shroud assembly 110 constructs an installation space, the volute assembly 120 is disposed in the installation space, the air inlet side 122 communicates with the installation space, and the air outlet side 121 communicates with the outside of the installation space.

When the oil soot enters the installation space, the oil soot may enter the volute assembly 120 from the air inlet side 122 of the volute assembly 120 and flow out from the air outlet side 121 of the volute assembly 120. Specifically, the volute assembly 120 may have an impeller that rotates at a high speed to generate suction force to suck the oil smoke in the kitchen into the range hood 100, the air inlet side 122 of the volute assembly 120 has an air inlet, the air outlet side 121 of the volute assembly 120 has an air outlet, and the oil smoke in the range hood 100 may enter the volute assembly 120 from the air inlet and be discharged from the air outlet.

Referring to fig. 1 and 2, the shroud assembly 110 of the range hood 100 includes a shroud body 112 and a plurality of sound absorbing members 111. The shroud body 112 has a cylindrical installation space therein, and the sound absorbing member 111 is attached to a side wall of the shroud body 112 facing the installation space to absorb noise in the installation space, such as mechanical noise generated by operation of the volute assembly 120, pneumatic noise generated by gas flow in the installation space, and the like. In some embodiments, the sound absorbing member 111 may be sound absorbing cotton. The plurality of sound absorbing members 111 are distributed along the circumferential direction of the installation space, and the plurality of sound absorbing members 111 may be distributed at intervals. The plurality of sound absorbing members 111 extend along an axial direction of the installation space (a direction indicated by an arrow a in fig. 2), the plurality of sound absorbing members 111 together define a columnar noise reduction space, the axial direction of the noise reduction space is identical to the axial direction of the installation space, the noise reduction space overlaps with a portion of the installation space, and the sound absorbing members 111 can absorb noise in the noise reduction space.

It can be appreciated that two adjacent sound absorbing members 111 of the plurality of sound absorbing members 111 may be disposed at intervals, so as to reduce the usage amount of the sound absorbing members 111, reduce the cost, and reduce the influence of the sound absorbing members 111 on the air flow of the installation space; alternatively, two adjacent sound absorbing members 111 among the plurality of sound absorbing members 111 may be continuously distributed. For example, in some embodiments, six sound absorbing members 111 are disposed in the installation space, and the six sound absorbing members 111 are distributed along the circumferential direction of the installation space, wherein two adjacent sound absorbing members 111 are connected end to end in the circumferential direction of the installation space to form a continuous sound absorbing whole, and the sound absorbing whole is disposed at intervals between the adjacent sound absorbing members 111.

Referring to fig. 2, the plurality of sound absorbing members 111 are alternately distributed in the axial direction of the installation space (the direction indicated by arrow a in fig. 2). At least two sound absorbing members 111 are present among the plurality of sound absorbing members 111, the distances between the two sound absorbing members 111 and the end portions in the axial direction of the installation space are different, and the length of the overlapping portion of the two sound absorbing members 111 in the circumferential direction of the installation space is smaller than the length of the sound absorbing members 111. In this way, the length of the noise reduction space defined by the plurality of sound absorbing members 111 in the installation space axis direction is greater than the length of the sound absorbing members 111, and fewer sound absorbing members 111 are required to obtain the same noise reduction effect, thereby reducing the noise reduction cost of the range hood 100.

In some embodiments, the distance between any two adjacent sound absorbing members 111 and one end of the installation space is not the same. In this way, the plurality of sound absorbing members 111 can collectively restrict a large noise reduction space, and the distribution density of the sound absorbing members 111 corresponding to the end portion of the noise reduction space in the circumferential direction of the noise reduction space can also be increased, thereby improving the sound absorbing effect of the end portion of the noise reduction space.

Referring to fig. 1 and 4, the air outlet side 121 is located at an end of the installation space in the axial direction, the air inlet side 122 is opposite to the peripheral wall of the installation space, and at least one sound absorbing member 111 is opposite to the air inlet side 122. The shroud body 112 may include a top plate located at one end of the installation space in the axial direction, with the air outlet side 121 of the volute assembly 120 being located on the plane of the top plate, and the air outlet of the volute assembly 120 being located on the top plate. Since air is sucked into the volute assembly 120 from the air inlet side 122, the air flow velocity is high and the vortex flow is strong near the air inlet side 122, and the generated noise is large, the arrangement of the sound absorbing member 111 opposite to the air inlet side 122 can improve the absorption rate of the noise near the air inlet side 122, and improve the noise reduction effect of the sound absorbing member 111. It will be appreciated that the width of the sound absorbing member 111 is smaller than the width of the air inlet of the volute assembly 120 in the circumferential direction of the installation space. In some embodiments, two sound absorbing members 111 are disposed on the peripheral wall of the installation space opposite to the air inlet side 122, and the two sound absorbing members 111 are disposed at intervals, so that the sound absorbing members 111 are prevented from completely shielding the air inlet side 122, and the influence of the sound absorbing members 111 on the airflow in the installation space is reduced.

In some embodiments, the air outlet of the volute assembly 120 is located in the circumferential direction of the volute assembly 120, the air inlet of the volute assembly 120 is located in the axial direction of the volute assembly 120, the plane of the air inlet side 122 is perpendicular to the plane of the air outlet side 121, and the air outlet can be located on the peripheral wall of the installation space.

According to the coaming assembly 110 of the range hood 100, the plurality of sound absorbing pieces 111 are arranged on the inner wall of the installation space at intervals and distributed in a staggered manner along the axis direction of the installation space, the plurality of sound absorbing pieces 111 jointly define a noise reduction space so as to absorb noise generated by the range hood 100, the length of the noise reduction space in the axis direction of the installation space is greater than that of the sound absorbing pieces 111, fewer sound absorbing pieces 111 are needed for obtaining the same noise reduction effect, and therefore the noise reduction cost of the range hood 100 is reduced.

Referring to fig. 2, according to some embodiments of the present application, the enclosure body 112 includes a first enclosure 113, a second enclosure, a third enclosure, and a fourth enclosure connected end to end in order, the first enclosure 113 to the fourth enclosure defining an installation space, at least one of the first enclosure 113 and the third enclosure being provided with a sound absorbing member 111. The first to fourth surrounding plates 113 to 113 are sequentially connected around the circumference of the installation space, the first surrounding plate 113 is opposite to the third surrounding plate, the second surrounding plate is opposite to the fourth surrounding plate, and the first to fourth surrounding plates 113 to 113 define the installation space of the cube.

In some embodiments, the first shroud 113 is provided with sound absorbing members 111; or in some embodiments, the third panel is provided with a sound absorbing member 111; of course, in some embodiments, the sound absorbing member 111 may be provided on both the first and third enclosures 113 and 113. Thus, the sound absorbing member 111 can be opposed to the noise generating source to absorb noise, reduce the propagation of noise, and improve the noise reduction effect.

Referring to FIG. 3, according to some embodiments of the present application, the sound absorbing member 111 has a length L, and the overlapping portion of any two adjacent sound absorbing members 111 in the circumferential direction of the first chamber has a length L1, wherein L1 is not less than 0.5L. For example, L1 may be equal to 0.5L or 0.7L or 0.8L. The sound absorbing member 111 is more densely distributed in the installation space at a position close to the scroll case assembly 120 to absorb most of noise, so that a larger noise reduction space is obtained while maintaining a desired sound absorbing and noise reducing effect. Specifically, in some embodiments, 0.65 L.gtoreq.L1.gtoreq.0.8L can minimize the amount of sound absorbing member 111 and reduce the cost while ensuring the sound absorbing effect.

Referring to fig. 2, according to some embodiments of the present application, when the sound absorbing member 111 is provided on the first panel 113, the sound absorbing members 111 are provided on the first panel 113, and the sound absorbing members 111 are spaced apart; when the sound absorbing members 111 are arranged on the third coaming, a plurality of sound absorbing members 111 are arranged on the third coaming, and the sound absorbing members 111 are arranged at intervals. Thus, the distribution density of the sound absorbing members 111 can be increased, the sound absorbing members 111 can cover a larger area of the air inlet side 122, the sound absorbing effect can be improved, and the influence on the air flow in the installation space can be reduced by arranging the sound absorbing members 111 at intervals.

For example, in the example of fig. 4, two sound absorbing members 111 are disposed on the first shroud 113, and the sound absorbing members 111 are disposed at intervals, wherein one sound absorbing member 111 is located at one side edge of the first shroud 113, the other sound absorbing member 111 is located at the other side edge of the first shroud 113, and the two sound absorbing members 111 are far from the projection center of the air inlet side 122 on the first shroud 113, so that resistance of the sound absorbing members 111 to air flow in the installation space can be reduced.

Referring to fig. 4, according to some embodiments of the present application, the shroud body 112 includes a first shroud 113, the first shroud 113 being opposite to the air inlet side 122, and two sound absorbing members 111 being provided on the first shroud 113 to absorb noise generated near the air inlet side 122. The two sound absorbing members 111 are alternately arranged along the axial direction of the installation space. Thus, the sound absorbing member 111 can cover a wide range to improve the sound absorbing effect.

For example, referring to fig. 2, in some embodiments, two sound absorbing members 111 may be provided on opposite side enclosures of the enclosure body 112 opposite to the first enclosure 113, the two sound absorbing members 111 being staggered in the axial direction of the installation space, the sound absorbing members 111 on the opposite side enclosures being positioned corresponding to the sound absorbing members 111 on the first enclosure 113, and both being also staggered in the axial direction of the installation space. That is, the first and opposite side enclosures 113 and 111 are respectively provided with two sound absorbing members 111, and the four sound absorbing members 111 together define a sound deadening space of a cube to absorb noise generated in the installation space. And, any two adjacent sound absorbing members 111 are staggered in the installation space axis direction (the direction indicated by arrow a in fig. 2) to obtain a larger noise reduction space and reduce the amount of the sound absorbing members 111. Of course, the sound absorbing member 111 may be provided on the panel body 112 adjacent to the first panel 113 to further enhance the sound absorbing effect.

Referring to fig. 4, according to some embodiments of the present application, the periphery of the first shroud 113 includes a first edge 1131, a second edge 1132, and a third edge 1133 connected in sequence, wherein the first edge 1131 and the third edge 1133 each extend along an axial direction of the installation space, and the first edge 1131 and the third edge 1133 are parallel. The air-out side 121 coincides with the second edge 1132. In some embodiments, the end of the shroud body 112 at the second edge 1132 is provided with a top plate, one side edge of the top plate being connected to the second edge 1132, and the air outlet of the volute assembly 120 is provided on the top plate. The outlet of the volute assembly 120 is closer to the first edge 1131 than the third edge 1133.

The two sound absorbing members 111 on the first enclosing plate 113 are a first sound absorbing member and a second sound absorbing member, the first sound absorbing member is located at the first edge 1131, and the second sound absorbing member is located at the third edge 1133; the vertical distance between the first sound absorbing member and the second edge 1132 is greater than the vertical distance between the second sound absorbing member and the second edge 1132. In this way, the projection of the air inlet of the volute assembly 120 on the first enclosing plate 113 is less than the overlapping part of the first sound-absorbing piece and the second sound-absorbing piece, and the shielding area of the first sound-absorbing piece and the second sound-absorbing piece to the air inlet of the volute assembly 120 is smaller, so that the influence of the first sound-absorbing piece and the second sound-absorbing piece on the airflow flow at the air inlet is reduced.

It will be appreciated that this is merely an example of an arrangement of sound absorbing members 111 on the first enclosure 113, and is not intended to limit the number of sound absorbing members 111. In some embodiments, four sound absorbing members 111 may be disposed on the first enclosing plate 113, and the first sound absorbing member or the second sound absorbing member may be a sound absorbing whole formed by continuously splicing the plurality of sound absorbing members 111, for example, the first sound absorbing member and the second sound absorbing member may each include two sound absorbing members 111 connected in parallel; alternatively, the first sound absorbing member may include one sound absorbing member 111, and the second sound absorbing member may include three sound absorbing members 111 connected in parallel.

Referring to fig. 4, in accordance with some embodiments of the present application, the first shroud 113 is divided into a first zone a, a second zone B, a third zone C, and a fourth zone D centered on the center of projection of the volute assembly 120 onto the first shroud 113, wherein the first zone a is adjacent to the second zone B, the fourth zone D, and the first zone a is opposite to the third zone C. It will be appreciated that when the drive means of the volute assembly 120 is an impeller, the centre of projection of the volute assembly 120 onto the first shroud 113 is the projection of the centre axis of the impeller onto the first shroud 113.

One sound absorbing member 111 of the two sound absorbing members 111 on the first shroud 113 is located in the first zone a and the second zone B, wherein the other sound absorbing member 111 is located in the third zone C and the fourth zone D, and the orthographic projection of the air outlet of the volute assembly 120 on the first shroud 113 is located in the fourth zone D. In some embodiments, the air inlet of the volute assembly 120 is disposed in the axial direction of the volute assembly 120, the air outlet of the volute assembly 120 is disposed in the circumferential direction of the volute assembly 120, and the width of the housing of the volute assembly 120 in the radial direction is greater than the width of the housing in other positions on the volute assembly 120 in the radial direction at the position of the air outlet of the volute assembly 120, and the aerodynamic noise generated by the gas in the vicinity of the air outlet is smaller.

According to some embodiments of the present application, the area of the sound absorbing member 111 overlapping the third region C is equal to or larger than the area of the sound absorbing member 111 overlapping the fourth region D. For example, in the example of fig. 4, two sound absorbing members 111 on the first surrounding plate 113 are alternately arranged in the up-down direction (the direction indicated by arrow a in fig. 4), and the sound absorbing members 111 located in the first region a and the second region B are disposed above the sound absorbing members 111 located in the third region C and the fourth region D. Since the air generates less noise at the air outlet position, the sound absorbing members 111 located in the third and fourth zones C and D can be disposed in a direction away from the air outlet; correspondingly, the sound absorbing member 111 located in the first region a and the second region B has an area overlapping the first region a larger than an area overlapping the fourth region D, thereby determining the position of the sound absorbing member 111 at other positions in the installation space in the axial direction of the installation space. Thus, the sound absorbing material 111 can cover the main position where noise is generated, thereby reducing the propagation of noise and improving the noise reduction effect.

Referring to fig. 1, according to some embodiments of the present application, the range hood 100 further includes a housing 130, the housing 130 is connected to the shroud assembly 110, the housing 130 has a cavity therein, and the installation space communicates with the interior of the housing 130. The box 130 is provided with a smoke inlet 131 and an opening and closing panel 132, the smoke inlet 131 is communicated with the cavity inside the box 130, and the oil smoke enters the cavity inside the box 130 through the smoke inlet 131 and enters the installation space. The opening and closing panel 132 is used for adjusting the opening of the smoke inlet 131.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The utility model provides a coaming subassembly (110) of range hood, its characterized in that, including coaming main part (112) and many inhale sound piece (111), have columnar installation space in coaming main part (112), inhale sound piece (111) subsides and locate coaming main part (112) are towards on the lateral wall of installation space, many inhale sound piece (111) are followed installation space's circumference direction distributes, and many inhale sound piece (111) are followed installation space's axis direction extends, and many inhale sound piece (111) are followed installation space's axis direction staggered distribution.

2. The shroud assembly (110) of a range hood according to claim 1, wherein the shroud body (112) includes a first shroud (113), a second shroud, a third shroud, and a fourth shroud connected in series, the first shroud (113) to the fourth shroud defining the installation space,

at least one of the first and third enclosures (113, 111) is provided with the sound absorbing member.

3. The shroud assembly (110) of a range hood according to claim 2, wherein the sound absorbing member (111) has a length L, and overlapping portions of any two adjacent sound absorbing members (111) in the circumferential direction of the installation space have a length L1, wherein L1 is equal to or greater than 0.5L.

4. The shroud assembly (110) of a range hood of claim 2, wherein when the sound absorbing member (111) is provided on the first shroud (113), a plurality of the sound absorbing members (111) are provided on the first shroud (113);

when the sound absorbing pieces (111) are arranged on the third coaming, a plurality of sound absorbing pieces (111) are arranged on the third coaming.

5. A range hood (100), comprising:

a volute assembly (120), the volute assembly (120) having an air inlet side (122) and an air outlet side (121);

the coaming assembly (110), the coaming assembly (110) is a coaming assembly (110) of a range hood according to any one of claims 1-4, the volute assembly (120) is arranged in the installation space, the air inlet side (122) is communicated with the installation space, the air outlet side (121) is communicated with the outside of the installation space, the air outlet side (121) is positioned at the end part of the axis direction of the installation space, and at least one sound absorbing piece (111) is opposite to the air inlet side (122).

6. The range hood (100) according to claim 5, wherein the shroud body (112) includes a first shroud (113), the first shroud (113) being opposite to the air intake side (122), and two sound absorbing members (111) being provided on the first shroud (113).

7. The range hood (100) of claim 6, wherein the perimeter of the first shroud (113) includes a first edge (1131), a second edge (1132), and a third edge (1133) connected in sequence, wherein the first edge (1131) and the third edge (1133) are parallel, the air outlet side (121) coincides with the second edge (1132), and an air outlet of the volute assembly (120) is closer to the first edge (1131) than the third edge (1133);

the two sound absorbing pieces (111) located on the first coaming (113) are a first sound absorbing piece and a second sound absorbing piece, the first sound absorbing piece is located at the first edge (1131), and the second sound absorbing piece is located at the third edge (1133);

the first sound absorbing member is spaced from the second edge (1132) by a greater vertical distance than the second sound absorbing member is spaced from the second edge (1132).

8. The range hood (100) of claim 6 wherein the first shroud (113) is divided into a first region, a second region, a third region, and a fourth region centered on a center of projection of the volute assembly (120) onto the first shroud (113), wherein one of the sound absorbing members (111) is located in the first region and the second region, wherein the other of the sound absorbing members (111) is located in the third region and the fourth region, and wherein an orthographic projection of an air outlet of the volute assembly (120) onto the first shroud (113) is located in the fourth region.

9. The range hood (100) according to claim 8, wherein an area of the sound absorbing member (111) overlapping the third region is equal to or larger than an area of the sound absorbing member (111) overlapping the fourth region.

10. The range hood (100) of claim 5 further comprising a housing (130), said housing (130) being coupled to said shroud assembly (110), said mounting space being in communication with an interior of said housing (130),

the box body (130) is provided with a smoke inlet (131) and an opening and closing panel, and the opening and closing panel is used for adjusting the opening of the smoke inlet (131).