Shell structure and range hood

Abstract

The present invention provides a housing structure and a range hood, relating to the technical field of kitchen appliances. The housing structure includes a housing assembly, a noise reduction assembly, and a rectifying and guiding assembly. The housing assembly is used to house a fan assembly, and the side walls of the housing assembly on both sides of the fan assembly form an air inlet cavity with the fan assembly. The rectifying and guiding assembly includes a guide plate and two rectifying plates. The two rectifying plates are respectively arranged on both sides of the guide plate. The rectifying and guiding assembly is fixed to the bottom of the housing, and the two rectifying plates are connected to the two air inlet cavities in a one-to-one correspondence. The noise reduction assembly is arranged on the side walls of the housing assembly located within the air inlet cavity and on the top surface of the housing assembly located within the air inlet cavity. This prevents noise from radiating outside the air inlet cavity, significantly reducing the noise of the range hood.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a housing structure and a range hood. Background Art

[0002] With the development of range hood technology, consumers have higher and higher requirements on range hood performance and noise.

[0003] The fan assembly is one of the main sources of noise in the range hood. In order to make the range hood achieve high performance and low noise, the range hood in the prior art selects a relatively large fan assembly. In this way, the speed of the fan assembly can be reduced while obtaining the same air volume, thereby reducing the noise of the range hood.

[0004] However, the noise reduction effect of the above method is limited, and the noise of the range hood is still relatively large. Summary of the Invention

[0005] The object of the present invention is to provide a housing structure to solve the technical problem of high noise in the range hood in the prior art.

[0006] The shell structure provided by the present invention includes a shell component, a noise reduction component and a rectification and flow guide component;

[0007] The interior of the housing assembly is used to arrange a fan assembly, and the side walls of the housing assembly located on both sides of the fan assembly respectively form an air inlet cavity with the fan assembly;

[0008] The rectifying and guiding assembly includes a guide plate and two rectifying plates; the two rectifying plates are respectively arranged on both sides of the guide plate; the rectifying and guiding assembly is fixed on the bottom of the shell, and the two rectifying plates are connected to the two air inlet cavities in a one-to-one correspondence;

[0009] The noise reduction component is arranged on the side wall of the shell component located in the air inlet cavity and the top surface of the shell located in the air inlet cavity.

[0010] Furthermore, the guide plate and the two rectifier plates are an integrated structure.

[0011] Furthermore, the guide plate includes a first plate body and a second plate body, and the first plate body and the second plate body are arranged obliquely;

[0012] The distance between the top of the first plate and the top of the second plate is h, which is less than or equal to the width of the fan assembly; the angle between the first plate and the second plate is β, which is 30°-120°.

[0013] Furthermore, the perforation rate of the rectifier plate is greater than 75%.

[0014] Furthermore, the noise reduction component is arranged inside the shell component.

[0015] Furthermore, the shell structure also includes a top plate, which covers the top surface of the shell component; the noise reduction component is fixed on the end surface of the top plate facing the air inlet cavity.

[0016] Furthermore, the noise reduction component includes a sound absorbing member and a noise reduction plate; the noise reduction plate is provided with a plurality of sound-absorbing holes;

[0017] The noise reduction plate is fixed to the shell assembly, and the sound absorbing member is arranged between the noise reduction plate and the shell assembly.

[0018] Furthermore, the housing assembly includes two oppositely disposed first side walls and two oppositely disposed second side walls, wherein the second side wall is disposed between the two first side walls, and the first side wall is configured to face the air inlet of the fan assembly; a raised structure is provided in the middle portion of one of the second side walls; the air inlet of the fan assembly is disposed toward the first side wall, and the end of the volute of the fan assembly extends into the raised structure;

[0019] The areas on the second side wall located on both sides of the raised structure are used to be arranged on the inner side of the cabinet, and the raised structure is used to be arranged on the outer side of the cabinet.

[0020] Furthermore, the shell structure further includes a panel; the panel is detachably connected to the front end surface of the protruding structure.

[0021] Furthermore, the air outlet of the fan assembly is located between the two second side walls, and the air outlet of the fan assembly is arranged close to the second side wall having the protruding structure.

[0022] Another object of the present invention is to provide a range hood comprising the housing structure provided by the present invention.

[0023] Furthermore, the range hood further includes a fume hood and a fume hood panel.

[0024] The shell structure provided by the present invention includes a shell assembly, a noise reduction assembly and a rectifying and guide assembly; the interior of the shell assembly is used to set the fan assembly, and the side walls of the shell assembly located on both sides of the fan assembly respectively form an air inlet cavity with the fan assembly; the rectifying and guide assembly includes a guide plate and two rectifying plates; the two rectifying plates are respectively arranged on both sides of the guide plate; the rectifying and guide assembly is fixed on the bottom of the shell assembly, and the two rectifying plates are connected to the two air inlet cavities in a one-to-one correspondence; the noise reduction assembly is arranged on the side walls of the shell assembly located in the air inlet cavity and on the top surface of the shell located in the air inlet cavity. A rectifying and guide assembly is provided at the bottom of the shell assembly, and the guide plate can guide the flow field at the air inlet and split it into two air inlet areas, and then enter the two air inlet cavities after rectification through the rectifying plates in the two air inlet areas, and finally enter the air inlet of the fan assembly. This arrangement can make the flow field in the air inlet path more uniform, reduce the generation of eddy currents, thereby reducing noise, and enable the rectifying and guide assembly to provide noise reduction measures for the bottom surface of the air inlet cavity; and the noise reduction assembly can reduce noise on the three sides and top surface of the air inlet cavity; in summary, except for the plane where the fan assembly is located, noise reduction measures are provided on the top surface, bottom surface and three sides of the air inlet cavity, so that the surfaces of the air inlet cavity facing the outside of the shell assembly have noise reduction capabilities, and the noise emitted by the fan assembly is locked in the air inlet cavity for silencing, preventing the noise from radiating to the outside of the air inlet cavity, thereby greatly reducing the noise of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is an exploded view of the housing structure provided by an embodiment of the present invention;

[0027] Figure 2 1 is a schematic structural diagram of a shell assembly in a housing structure provided by an embodiment of the present invention;

[0028] Figure 3 1 is a schematic structural diagram of a flow guide and rectifying assembly in a housing structure provided by an embodiment of the present invention;

[0029] Figure 4 is a cross-sectional view of a housing structure provided by an embodiment of the present invention;

[0030] Figure 5 is a top view of the housing structure provided by an embodiment of the present invention;

[0031] Figure 6 is a three-dimensional diagram of a rectifying and guiding assembly in a housing structure provided by an embodiment of the present invention;

[0032] Figure 7 is an exploded view of a range hood provided by an embodiment of the present invention;

[0033] Figure 8 This is a front view of the fan assembly in the range hood provided by an embodiment of the present invention.

[0034] Icons: 1-shell assembly; 11-raised structure; 2-rectifier and guide assembly; 21-guide plate; 22-rectifier plate; 3-fan assembly; 31-air inlet; 32-air outlet; 4-top plate; 5-noise reduction assembly; 51-sound absorbing component; 52-noise reduction plate; 6-smoke hood; 7-panel; 8-smoke hood panel. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] The present invention provides a housing structure and a range hood. The housing structure and the range hood provided by the present invention are described in detail below with reference to a plurality of embodiments.

[0037] Example 1

[0038] The shell structure provided in this embodiment is as follows: Figures 1 to 8 As shown, it includes a shell component 1, a noise reduction component 5 and a rectifying and guiding component 2; the top and bottom of the shell component 1 are both open structures, the interior of the shell component 1 is used to set the fan component 3, and the side walls of the shell component 1 on both sides of the fan component 3 respectively form an air inlet cavity with the fan component 3; the rectifying and guiding component 2 includes a guide plate 21 and two rectifying plates 22; the two rectifying plates 22 are respectively arranged on both sides of the guide plate 21; the rectifying and guiding component 2 is fixed to the opening structure at the bottom of the shell, and the two rectifying plates 22 are connected to the two air inlet cavities in a one-to-one correspondence; the noise reduction component 5 is arranged on the side wall of the shell component 1 located in the air inlet cavity and on the opening structure at the top of the shell located in the air inlet cavity.

[0039] The fan assembly 3 includes two air inlets 31 arranged opposite to each other. The housing assembly 1 located on both sides of the fan assembly 3 refers to: the area of ​​the housing assembly 1 located outside the end surface where the two air inlets 31 are located.

[0040] A rectifying and guiding component 2 is provided at the bottom of the shell component 1, and the guide plate 21 can guide the flow field at the air inlet and split it into two air inlet areas, and then enter the two air inlet cavities after rectification through the rectifying plates 22 in the two air inlet areas, and finally enter the air inlet 31 of the fan component 3. This arrangement can make the flow field of the air inlet path more uniform, reduce the generation of eddy currents, thereby reducing noise, and enable the rectifying and guiding component 2 to provide a noise reduction measure for the bottom surface of the air inlet cavity; and the noise reduction component 5 can reduce noise on the three side surfaces and the top surface of the air inlet cavity; in summary, except for the plane where the fan component 3 is located, noise reduction measures are provided on the top surface, bottom surface and three side surfaces of the air inlet cavity, so that the surface of the air inlet cavity facing the outside of the shell component 1 has noise reduction capability, and the noise emitted by the fan component 3 is locked in the air inlet cavity for silencing, preventing the noise from radiating to the outside of the air inlet cavity, thereby greatly reducing the noise of the range hood.

[0041] It should be noted that the sealing performance of the air inlet cavity significantly affects its sound absorption and sound insulation performance. If any surface of the air inlet cavity has poor sound insulation performance, a large amount of noise will radiate from that surface. Therefore, when all surfaces of the air inlet cavity facing the exterior of the housing assembly 1 have noise reduction capabilities, the range hood noise can be significantly reduced. The noise reduction effect achieved by having all noise-radiating surfaces of the air inlet cavity have noise reduction capabilities is greater than the sum of the noise reduction effects achieved by each surface having noise reduction capabilities.

[0042] For example, if the rectifying and guiding component 2 is fixed only on the opening structure at the bottom of the shell, the noise reduction is about 1.1dB(A); if the noise reduction component 5 is set only on the opening structure at the top of the shell located in the air inlet cavity, the noise reduction is about 0.5dB(A); if the noise reduction component 5 is set only on the side wall of the shell component 1 located in the air inlet cavity, the noise reduction is about 1.2dB(A); the noise reduction of the shell structure provided in this embodiment is about 4.1dB(A).

[0043] The guide plate 21 and the two rectifier plates 22 can be split structures, and the two rectifier plates 22 are respectively fixedly connected to the guide plate 21. The rectifying and deflecting assembly 2 is fixed to the opening structure at the bottom of the shell. The rectifying and deflecting assembly 2 can be directly fixed to the bottom of the shell assembly 1, or it can be fixed to the opening structure at the bottom of the shell through the noise reduction assembly 5.

[0044] In this embodiment, the guide plate 21 and the two rectifying plates 22 are an integrated structure with strong integrity and easy installation.

[0045] The deflector 21 includes a first plate and a second plate, which are arranged at an angle to achieve flow diversion. The first and second plates can be flat plates, forming a V-shaped structure. Alternatively, the first and second plates can be curved plates 7, as long as the deflector 21 can divert the airflow to the two rectifier plates 22.

[0046] Preferably, the distance between the top of the first plate body and the top of the second plate body is h, and h is less than or equal to the width of the fan assembly 3, so that the airflow is guided into the air inlet cavity on both sides of the fan assembly 3; the angle between the first plate body and the second plate body is β, and when β is 30°-120°, the diversion performance of the guide plate 21 is better.

[0047] Furthermore, the rectifier plate 22 is provided with a plurality of through holes, which may be any suitable shape such as hexagonal, circular or square. When the perforation rate of the rectifier plate 22 is greater than 75%, the rectifier plate 22 has better rectification performance.

[0048] The noise reduction component 5 can be arranged on the outside of the shell component 1 , or on the inside of the shell component 1 .

[0049] In this embodiment, the noise reduction component 5 is arranged inside the shell component 1, which can prevent the accumulated oil inside the range hood from leaking to the outside of the shell component 1.

[0050] The shell structure further includes a top plate 4, which covers the opening structure at the top of the shell assembly 1. The noise reduction assembly 5 can be fixed on the inner side wall of the shell assembly 1 located in the air inlet cavity and on the end surface of the top plate 4 facing the air inlet cavity.

[0051] The noise reduction component 5 is fixed to the end surface of the top plate 4 facing the air inlet cavity. The top plate 4 covers the opening structure at the top of the shell assembly 1. The noise reduction components 5 are provided on the top plates on both sides of the fan assembly 3, so that the air inlet cavities on both sides of the fan assembly 3 are provided with noise reduction components 5. Specifically, the noise reduction components 5 on the side walls of the shell assembly 1 located in the air inlet cavity on both sides of the fan assembly 3 are fixedly connected to the top plate 4. The noise reduction components 5 on the opening structure at the top of the shell located in the air inlet cavity on both sides of the fan assembly 3 are also fixedly connected to the top plate 4, so that the noise reduction components 5 and the top plate 4 are integrated into one, with strong integrity and easy installation.

[0052] The noise reduction assembly 5 includes a sound absorbing member 51 and a noise reduction plate 52 ; the noise reduction plate 52 is provided with a plurality of silencer holes; the noise reduction plate 52 is fixed to the shell assembly 1 , and the sound absorbing member 51 is arranged between the noise reduction plate 52 and the shell assembly 1 .

[0053] The muffler holes on the noise reduction plate 52 can be in any suitable shape, such as circular or square. Preferably, the muffler holes are circular, with a diameter in the range of 1-3 mm and a perforation rate in the range of 0.78%-44.2%, for better muffler effect.

[0054] The thickness of the sound absorbing member 51 is in the range of 8-30 mm, and the sound absorbing effect is good. The sound absorbing member 51 can be made of sound absorbing cotton.

[0055] Specifically, the sound-absorbing member 51 and the noise-reducing plate 52 on the side wall of the housing assembly 1 within the air inlet cavity are each composed of three plates: a first plate, a second plate, and a third plate. The first plate is disposed opposite the second plate, and the third plate is disposed between the first and second plates, so that the sound-absorbing member 51 and the noise-reducing plate 52 provide noise reduction performance for the side walls of the air inlet cavity in three directions. The first, second, and third plates can be fixedly connected to the top plate 4 separately, or the first, second, and third plates can be integrated into one body and then fixedly connected to the top plate 4. The sound-absorbing member 51 and the noise-reducing member on the opening structure at the top of the housing within the air inlet cavity are flat plates.

[0056] Furthermore, the shell assembly 1 includes two oppositely arranged first side walls and two oppositely arranged second side walls, the second side wall is arranged between the two first side walls, and the first side wall is used to be set toward the air inlet 31 of the fan assembly 3; a raised structure 11 is provided in the middle of a second side wall; the air inlet of the fan assembly 3 is set toward the first side wall, and the end of the volute of the fan assembly 3 extends into the raised structure 11; the area on the second side wall located on both sides of the raised structure 11 is used to be set on the inside of the cabinet, and the raised structure 11 is used to be set on the outside of the cabinet.

[0057] The volute of the fan assembly 3 is arranged inside the shell assembly 1, the air inlet 31 of the fan assembly 3 is arranged toward the first side wall, and one end of the volute of the fan assembly 3 extends into the raised structure 11. The raised structure 11 can accommodate the volute of the relatively large air inlet assembly, and when the shell assembly 1 is installed with the cabinet, the raised structure 11 is arranged on the outside of the cabinet and is less restricted by the cabinet. The areas on both sides of the raised structure 11 are arranged inside the cabinet to form a whole with the cabinet, so that the shell assembly 1 can accommodate a relatively large air inlet device and match the cabinet.

[0058] Among them, the distance between the two second side walls is AE; AE is less than or equal to the depth of the cabinet door panel, which facilitates the installation of the areas of the second side walls located on both sides of the protruding structure 11 behind the cabinet door panel.

[0059] The fan assembly 3 also includes an impeller, and the maximum distance between the edge of the impeller and the edge of the volute in the horizontal direction is b; AE is greater than or equal to b to avoid affecting the air inlet space and ensure the performance of the fan assembly 3.

[0060] The distance between the two side walls of the raised structure 11 is GH; the width of the volute of the fan assembly 3 is c; GH is greater than or equal to c so that the volute can extend into the raised structure 11. The width of the volute is the distance between the planes where the two air inlets 31 are located.

[0061] The widths of the two sidewalls of the raised structure 11 may be the same or different. It should be noted that the width of the sidewall of the raised structure 11 is the distance between the end of the raised structure 11 away from the second sidewall and the end of the raised structure 11 facing the second sidewall in the horizontal direction.

[0062] Preferably, the widths of the two sidewalls of the raised structure 11 are the same and are both CH. The minimum horizontal distance between the edge of the impeller and the edge of the volute is a; CH is less than or equal to a. This prevents the volute from extending too far into the raised structure 11 and affecting the air intake performance of the fan assembly 3.

[0063] The widths of the second sidewalls on either side of the protruding structure 11 may be the same or different. The width of the second sidewalls on either side of the protruding structure 11 is the distance between the end of the second sidewall away from the protruding structure 11 and the end of the second sidewall facing the protruding structure 11 in the horizontal direction.

[0064] In this embodiment, the widths of the second side walls on both sides of the protruding structure 11 are equal, so that the protruding structure 11 is located in the middle of the second side wall, which is convenient for arrangement in the cabinet.

[0065] The outer shell structure further includes a panel 7, which is detachably connected to the front end of the raised structure 11. This detachable connection can be achieved by any suitable means, such as a snap-on connection or a threaded connection. Panel 7 is positioned on the front end of the raised structure 11, exposed from the cabinet, and serves to decorate and protect the raised structure 11.

[0066] It should be noted that the front end surface of the protruding structure 11 is the end surface of the protruding structure 11 that faces the user.

[0067] Furthermore, the air outlet 32 ​​of the fan assembly 3 is located between the two second side walls, and the air outlet 32 ​​of the fan assembly 3 is arranged close to the second side wall having the protruding structure 11 .

[0068] That is, the air outlet 32 ​​is arranged closer to the front end of the shell assembly 1, so that the air outlet 32 ​​is arranged away from the wall, which can reduce the difficulty of installation and reduce the phenomenon of poor installation.

[0069] The shell structure provided in this embodiment is that a rectifying and guiding component 2 is provided at the bottom of the shell component 1, and the guide plate 21 can guide the flow field at the air inlet and split it into two air inlet areas, and then enter the two air inlet cavities after rectification through the rectifying plates 22 in the two air inlet areas, and finally enter the air inlet 31 of the fan component 3. This arrangement can make the flow field in the air inlet path more uniform, reduce the generation of eddy currents, thereby reducing noise, and enable the rectifying and guiding component 2 to provide a noise reduction measure for the bottom surface of the air inlet cavity; and the noise reduction component 5 can reduce noise on the three side surfaces and the top surface of the air inlet cavity; in summary, except for the plane where the fan component 3 is located, noise reduction measures are provided on the top surface, bottom surface and three side surfaces of the air inlet cavity, so that the surface of the air inlet cavity facing the outside of the shell component 1 has noise reduction capability, and the noise emitted by the fan component 3 is locked in the air inlet cavity for silencing, preventing the noise from radiating to the outside of the air inlet cavity, thereby greatly reducing the noise of the range hood.

[0070] Example 2

[0071] The range hood provided in this embodiment includes the shell structure provided in Example 1.

[0072] A rectifying and guiding component 2 is provided at the bottom of the shell component 1, and the guide plate 21 can guide the flow field at the air inlet and split it into two air inlet areas, and then enter the two air inlet cavities after rectification through the rectifying plates 22 in the two air inlet areas, and finally enter the air inlet 31 of the fan component 3. This arrangement can make the flow field of the air inlet path more uniform, reduce the generation of eddy currents, thereby reducing noise, and enable the rectifying and guiding component 2 to provide a noise reduction measure for the bottom surface of the air inlet cavity; and the noise reduction component 5 can reduce noise on the three side surfaces and the top surface of the air inlet cavity; in summary, except for the plane where the fan component 3 is located, noise reduction measures are provided on the top surface, bottom surface and three side surfaces of the air inlet cavity, so that the surface of the air inlet cavity facing the outside of the shell component 1 has noise reduction capability, and the noise emitted by the fan component 3 is locked in the air inlet cavity for silencing, preventing the noise from radiating to the outside of the air inlet cavity, thereby greatly reducing the noise of the range hood.

[0073] Furthermore, the range hood further comprises a fume hood 6 and a fume hood panel 8 ; the fume hood 6 is fixed to the bottom of the housing assembly 1 ; and the fume hood panel 8 is detachably connected to the front end surface of the fume hood 6 .

[0074] The front end of the smoke hood 6, i.e., the end facing the user, is decorated and protected by the smoke hood panel 8. The detachable connection can be a snap-on connection, a threaded connection, or any other suitable method. This facilitates assembly and disassembly of the smoke hood panel 8, allowing it to mate with the panel 7.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A housing structure, characterized in that: It comprises a housing component (1), a noise reduction component (5) and a flow rectification and guide component (2); The interior of the housing assembly (1) is used to arrange a fan assembly (3), and the side walls of the housing assembly (1) located on both sides of the fan assembly (3) respectively form an air inlet cavity with the fan assembly (3); The rectifying and guiding assembly (2) comprises a guide plate (21) and two rectifying plates (22); the two rectifying plates (22) are respectively arranged on both sides of the guide plate (21); the rectifying and guiding assembly (2) is fixed to the bottom of the shell assembly (1), and the two rectifying plates (22) are in one-to-one communication with the two air inlet cavities; The noise reduction component (5) is arranged on the side wall of the shell component (1) located in the air inlet cavity and on the top surface of the shell component (1) located in the air inlet cavity; Noise reduction measures are provided on the top surface, bottom surface and three side surfaces of the air inlet cavity, so that the surface of the air inlet cavity facing the outside of the shell assembly (1) has noise reduction capability; The housing assembly (1) comprises two first side walls arranged opposite to each other and two second side walls arranged opposite to each other, the second side wall being arranged between the two first side walls, the first side wall being arranged towards an air inlet (31) of the fan assembly (3); a raised structure (11) is provided in the middle of one of the second side walls; the air inlet of the fan assembly (3) is arranged towards the first side wall, and an end of the volute of the fan assembly (3) extends into the raised structure (11); The areas on the second side wall located on both sides of the raised structure (11) are used to be arranged on the inside of the cabinet, and the raised structure (11) is used to be arranged on the outside of the cabinet.

2. The housing structure according to claim 1, wherein: The guide plate (21) and the two rectifying plates (22) are an integrated structure.

3. The housing structure according to claim 1, wherein: The guide plate (21) comprises a first plate body and a second plate body, wherein the first plate body and the second plate body are arranged obliquely; The distance between the top of the first plate body and the top of the second plate body is h, and h is less than or equal to the width of the fan assembly (3); the angle between the first plate body and the second plate body is β, and β is 30°-120°.

4. The housing structure according to claim 1, wherein: The perforation rate of the rectifier plate (22) is greater than 75%.

5. The housing structure according to claim 1, wherein: The noise reduction component (5) is arranged inside the housing component (1).

6. The housing structure according to claim 5, characterized in that: The shell structure further comprises a top plate (4), which is arranged on the top surface of the shell assembly (1); and the noise reduction assembly (5) is fixed on the end surface of the top plate (4) facing the air inlet cavity.

7. The housing structure according to claim 1, wherein: The noise reduction component (5) comprises a sound absorbing member (51) and a noise reduction plate (52); the noise reduction plate (52) is provided with a plurality of sound-absorbing holes; The noise reduction plate (52) is fixed to the shell assembly (1), and the sound absorbing member is arranged between the noise reduction plate (52) and the shell assembly (1).

8. The housing structure according to claim 1, wherein: The shell structure further comprises a panel (7); the panel (7) is detachably connected to the front end surface of the raised structure (11).

9. The housing structure according to claim 1, wherein: The air outlet (32) of the fan assembly (3) is located between the two second side walls, and the air outlet of the fan assembly (3) is arranged close to the second side wall having the protruding structure (11).

10. A range hood, characterized in that: The invention comprises the housing structure according to any one of claims 1 to 9.

11. The range hood according to claim 10, characterized in that: The range hood further comprises a fume hood (6) and a fume hood panel (8).

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