CN216079985U

CN216079985U - Noise reduction assembly and range hood with same

Info

Publication number: CN216079985U
Application number: CN202122240365.XU
Authority: CN
Inventors: 刘剑涛; 申志贤; 许滔
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-18
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a noise reduction assembly and a range hood applying the noise reduction assembly, wherein the noise reduction assembly comprises a sound absorption box and a sound absorption piece made of sound absorption materials, the sound absorption box comprises a sound absorption box main body and a sound absorption box side part bent and extended from the edge of the sound absorption box main body, the sound absorption box side part is arranged on part of the edge of the sound absorption box main body, the inner side of the sound absorption box side part is hollow, the sound absorption piece comprises a sound absorption piece main body arranged on the sound absorption box main body and a sound absorption piece side part arranged on the inner side of the sound absorption box side part, a first sound absorption hole for absorbing noise is formed in the sound absorption box main body, and a second sound absorption hole for absorbing noise is formed in the sound absorption box side part. Compared with the prior art, the utility model has the advantages that: through the noise reduction assembly with the three-dimensional structure, the air flow operation channel can be compressed, the operation time is reduced, the collision area is increased through the three-dimensional structure, and the noise reduction effect is improved.

Description

Noise reduction assembly and range hood with same

Technical Field

The utility model relates to an oil fume purification device, in particular to a noise reduction assembly and a range hood applying the noise reduction assembly.

Background

The range hood is used as an essential kitchen appliance for each family, the range hood has the effects that oil smoke is sucked from the air inlet through the impeller rotating at a high speed in the volute, the oil smoke is filtered by the impeller, the filtered oil smoke is discharged from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke suction effect, the escape of the oil smoke is reduced, and the air quality of the kitchen is improved.

Chinese utility model patent of application number 202020451215.6 discloses a range hood, including the casing and locate the fan system in this casing, the casing lower part has the smoke inlet chamber of vertical extension, and casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, and the collection smoke chamber extends forward and forms the installation cavity that is used for installing fan system, and the installation cavity bottom is provided with the drawer formula and connects the drawer basket in the casing front side, and is provided with on the casing and can carry out sterile disinfection pipe to the content of drawer basket.

The noise level of the range hood has key influence on the user experience, and good sound quality is also the first problem that needs to be solved when the air quantity of the existing range hood is increased through rotating speed. The above patent does not have noise reducing means.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a noise reduction assembly, which can compress the passage of the air flow generating noise and improve the noise reduction efficiency, in view of the above-mentioned shortcomings of the prior art.

The second technical problem to be solved by the utility model is to provide a range hood with the noise reduction assembly.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a noise reduction assembly, characterized by: the subassembly of making an uproar falls including inhaling sound box and inhaling the sound piece of inhaling that the sound material was made, inhale the sound box including inhaling sound box main part and inhaling the sound box lateral part that extends by the edge bending of inhaling sound box main part, inhale the setting of sound box lateral part on the part edge of inhaling sound box main part, the inboard of inhaling sound box lateral part is the cavity form, inhale the sound piece including setting up inhaling sound piece main part and setting up on inhaling sound box main part and inhaling the sound piece lateral part of inhaling sound box lateral part inboard, inhale and set up the first sound absorbing hole that is used for noise absorption in the sound box main part, it inhales the sound hole to set up the second that is used for noise absorption on the sound box lateral part.

In order to realize better noise reduction, preferably, the included angles between the side of the sound absorption box, which faces the inside of the sound absorption box, and the side of the sound absorption box, which faces the outside of the sound absorption box, and the sound absorption box main body are both more than or equal to 90 degrees.

Inhale sound spare in order to realize inhaling the swift dismouting of sound spare on inhaling the sound box, inhale sound spare main part and inhale sound spare lateral part as integrated into one piece, inhale and be formed with on the sound box main part by with inhale the storage tank that sound box lateral part extending direction opposite side surface formed to the inboard sunken, inhale the sound spare main part and arrange in the storage tank, inhale the one side that corresponds the storage tank on the sound spare lateral part and seted up the confession and inhale sound spare lateral part male slot, storage tank and slot intercommunication.

Preferably, inhale the sound box main part and be square, inhale sound box lateral part and set up in inhaling the relative both sides of sound box main part.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: a range hood, its characterized in that: a noise reduction assembly as described above is applied.

Preferably, the relative fan system setting of subassembly of making an uproar falls, range hood still includes collection petticoat pipe, sets up the fan frame in collection petticoat pipe top, be provided with fan system in the fan frame, fan system includes at least one input, the subassembly of making an uproar falls sets up in the fan frame, corresponds the input setting, inhale sound box lateral part and extend towards fan system direction.

In order to realize the connection of the noise reduction assembly and the fan frame, one side of the fan frame corresponding to the input end forms the installation base of the noise reduction assembly, and the sound absorption piece is arranged between the sound absorption box and the installation base.

Preferably, an included angle between the sound absorption box main body and the installation foundation is A, 12 degrees or more and more than A is more than or equal to 0 degree, and when the sound absorption box main body is obliquely arranged, the oblique direction of the sound absorption box main body is oblique from bottom to top towards the direction of the fan system.

In order not to influence the air inlet airflow, be provided with the air intake between fan frame and the collection petticoat pipe, the air intake is located and falls the subassembly below of making an uproar, the edge of inhaling sound box main part has the breach that does not set up the confession air current that inhales sound box lateral part and form and pass through, the breach is towards the air intake.

In order to avoid the noise reduction assembly from blocking the air inlet channel and disturbing the air flow to generate abnormal sound and larger rotation speed fluctuation, the projection coating input end of the space enclosed by the sound absorption box main body and the sound absorption box side part on the input end of the fan system is arranged.

In order not to influence the installation, the noise reduction assembly is arranged at intervals with the fan system.

Compared with the prior art, the utility model has the advantages that: the noise reduction assembly with the three-dimensional structure can compress a channel for air flow operation, so that the operation time is reduced, the collision area is increased by the three-dimensional structure, and the noise reduction effect is improved; the sound-absorbing piece is integrally formed and limited on the sound-absorbing box, and then the sound-absorbing box is connected with an external installation foundation, so that the sound-absorbing piece does not need to be installed and fixed in the fan frame for multiple times, and later maintenance and replacement are facilitated; when the fan system is used in a range hood, the noise reduction assembly can be completely covered on the structure as the input end of the fan system of a main noise source, the noise reduction efficiency is improved, and the integral improvement of the sound quality is realized.

Drawings

FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;

FIG. 2 is a side sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 3 is another side sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 4 is a front cross-sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a noise reduction assembly of a range hood according to an embodiment of the present invention;

FIG. 6 is an exploded view of a noise reduction assembly of a range hood according to an embodiment of the present invention;

fig. 7 is an exploded view of a portion of the components of the range hood according to the embodiment of the present invention;

fig. 8 is a schematic view of a sound-absorbing box main body of a range hood according to an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, a range hood includes a fume collecting hood 3, and a fan frame 4 disposed above the fume collecting hood 3. A fan system 5 is arranged in the fan frame 4, the fan system 5 comprising an input 51 arranged towards the rear. An air inlet 6 is arranged between the fan frame 4 and the fume collecting hood 3.

Referring to fig. 2 to 8, the range hood further includes a noise reduction assembly disposed at the rear side of the fan frame 4 and corresponding to the input end 51, and the noise reduction assembly is located above the air inlet 6.

The noise reduction assembly includes a sound-absorbing box 1 and a sound-absorbing member 2 made of a sound-absorbing material. The sound absorption box 1 includes a flat sound absorption box main body 11 and a sound absorption box side portion 12 extending by bending an edge of the sound absorption box main body 11, and the sound absorption box side portion 12 is provided at a partial edge of the sound absorption box main body 11 (not covering all edges of the sound absorption box main body 11, not providing an edge position of the sound absorption box side portion 12 for air intake), and extends toward the fan system 5. The inside of the sound absorbing box side portion 12 is hollow. The sound absorbing member 2 includes a sound absorbing member main body 21 provided on the sound absorbing box main body 11 and a sound absorbing member side portion 22 provided inside the hollow of the sound absorbing box side portion 12.

Inhale sound box main part 11 and offer the first sound absorbing hole 111 that is used for the absorbed noise, inhale and set up the second that is used for the absorbed noise on sound spare lateral part 22 and inhale sound hole 122, first sound absorbing hole 111 with inhale sound spare main part 21 intercommunication, sound hole 122 and inhale sound spare lateral part 22 intercommunication are inhaled to the second, inhale the sound hole and can effectively absorb the produced noise of 5 operations of fan system.

Referring to fig. 8, in the present embodiment, the sound-absorbing box main body 11 is square, and the sound-absorbing box main body 11 may have other shapes, such as a circle. When the sound-absorbing box main body 11 is square, the sound-absorbing box side portions 12 are provided on opposite sides of the sound-absorbing box main body 11. Alternatively, the sound-absorbing box side portion 12 may be provided on one side or three sides of the sound-absorbing box main body 11. When the sound-absorbing box main body 11 is circular, the sound-absorbing box side portion 12 is provided in a circular arc shape. So long as the sound-absorbing box side portion 12 does not cover all the edges of the sound-absorbing box main body 11.

The included angles between the side (facing the inside of the sound absorption box 1) close to the side 12 of the two sound absorption boxes and the side (facing the outside of the sound absorption box 1) far away from the sound absorption box main body 11 are both B, and B is not less than 90 degrees, or the two included angles can be different. A notch 121 for the air flow to pass through is formed between the two sound absorption box side portions 12, and the notch 121 is arranged downward and corresponds to the air inlet 6, so that the air flow entering the input end 51 is not affected.

Referring to fig. 5 to 6, in the present embodiment, the sound absorbing body 21 and the sound absorbing side portion 22 are integrally formed, the sound absorbing box body 11 is formed with an accommodating groove 112 formed by recessing an inner side of a surface of a side opposite to an extending direction of the sound absorbing box side portion 12, the sound absorbing body 21 is disposed in the accommodating groove 112, a slot 123 into which the sound absorbing side portion 22 is inserted is formed on a side of the sound absorbing box side portion 12 corresponding to the accommodating groove 112, and the accommodating groove 112 is communicated with the slot 123. Inhale sound piece 2 and insert in inhaling sound box lateral part 12 through inhaling sound piece lateral part 22 and can realize inhaling the spacing of sound piece 2 on inhaling sound box 1, the whole change maintenance of sound piece 2 is inhaled in the later stage of being convenient for.

Referring to fig. 7, the side of the fan frame 4 corresponding to the input end 51 constitutes the mounting base 41 of the noise reduction assembly, the sound absorbing member 2 is disposed between the sound absorbing box 1 and the mounting base 41, and the sound absorbing box side portion 12 extends toward the fan system 5. The noise reduction assembly is spaced from the fan system 5 so as not to interfere with installation. The sound absorption box 1 is fixed on the installation base 41 in a screw or buckle mode, and is convenient and quick. The included angle between the sound absorption box main body 11 and the installation foundation 41 is A, 12 degrees is larger than or equal to A and larger than or equal to 0 degree, and when the sound absorption box main body 11 is obliquely arranged, the oblique direction inclines from bottom to top towards the fan system 5.

The projection of the space formed by the sound absorption box 1 of the noise reduction assembly on the input end 51 of the fan system 5 completely covers the input end 51, so that the noise reduction assembly is prevented from blocking an air inlet channel and disturbing air flow to generate abnormal sound and large rotating speed fluctuation.

Inhale sound box 1 and inhale sound piece 2 and all constituted spatial structure, fall the subassembly of making an uproar and settle in the wind channel that corresponds with input 51 to fix in fan frame 4, in the oil smoke to the motion process of the input 51 of fan system 5, inhale the perpendicular limit structure of sound box side 12 and compressed the operation passageway of oil smoke in fan frame 4, reduced the operating duration of oil smoke in fan frame 4, improved oil absorption cigarette efficiency. Noise generated by self collision in the oil smoke movement process is absorbed and eliminated to a certain degree in the process of passing through the noise reduction assembly. And as the input 51 of main noise source, the subassembly of making an uproar falls structurally can cover completely, improves the efficiency of making an uproar, has realized the whole promotion to the sound quality.

Claims

1. A noise reduction assembly, characterized by: the subassembly of making an uproar falls including inhaling sound box (1) and inhaling sound piece (2) of making by sound absorbing material, inhale sound box (1) including inhale sound box main part (11) and by inhaling sound box side (12) of the edge bending extension of sound box main part (11), inhale sound box side (12) and set up on inhaling the partial edge of sound box main part (11), the inboard of inhaling sound box side (12) is the cavity form, inhale sound piece (2) including setting up inhale sound piece main part (21) and the setting on inhaling sound box main part (11) and inhaling sound piece lateral part (22) of inhaling sound box side (12) inboard, inhale and set up first sound absorbing hole (111) that are used for noise absorption on sound box main part (11), inhale and set up the second that is used for noise absorption on sound box lateral part (12) and inhale sound hole (122).

2. The noise reduction assembly of claim 1, wherein: the included angles between the side of the sound absorption box side part (12) facing the inside of the sound absorption box (1) and the side of the sound absorption box side part facing the outside of the sound absorption box (1) and the sound absorption box main body (11) are both more than or equal to 90 degrees.

3. The noise reduction assembly of claim 1, wherein: inhale sound spare main part (21) and inhale sound spare lateral part (22) and be integrated into one piece, it is formed with by inhaling sound box main part (11) and sunken storage tank (112) that form to the inboard by the side surface opposite with sound box lateral part (12) extending direction to inhale, inhale sound spare main part (21) and arrange in storage tank (112), inhale the one side that corresponds storage tank (112) on sound spare lateral part (22) and offer and supply to inhale sound spare lateral part (22) male slot (123), storage tank (112) and slot (123) intercommunication.

4. A noise reduction assembly according to any of claims 1 to 3, wherein: the sound absorption box is characterized in that the sound absorption box main body (11) is square, and the sound absorption box side parts (12) are arranged on two opposite sides of the sound absorption box main body (11).

5. A range hood, its characterized in that: use of a noise reduction assembly according to any of claims 1 to 4.

6. The range hood of claim 5, wherein: range hood still includes collection petticoat pipe (3), sets up fan frame (4) in collection petticoat pipe (3) top, be provided with fan system (5) in fan frame (4), fan system (5) include at least one input (51), the subassembly setting of making an uproar falls in fan frame (4), corresponds input (51) setting, inhale sound box lateral part (12) and extend towards fan system (5) direction.

7. The range hood of claim 6, wherein: one side that fan frame (4) and input (51) correspond constitutes noise reduction assembly's installation basis (41), inhale sound piece (2) and set up between sound absorption box (1) and installation basis (41).

8. The range hood of claim 7, wherein: the included angle between the sound absorption box main body (11) and the installation foundation (41) is A, 12 degrees or more A is more than or equal to 0 degree, and when the sound absorption box main body (11) is obliquely arranged, the oblique direction of the sound absorption box main body (11) is oblique from bottom to top towards the fan system (5).

9. The range hood of claim 6, wherein: be provided with air intake (6) between fan frame (4) and collection petticoat pipe (3), air intake (6) are located the subassembly below of making an uproar that falls, the edge of inhaling sound box main part (11) has breach (121) that the confession air current that does not set up sound box lateral part (12) and form passes through, breach (121) are towards air intake (6).

10. The range hood of claim 9, wherein: the projection of the space surrounded by the sound absorption box main body (11) and the sound absorption box side part (12) on the input end (51) of the fan system (5) covers the input end (51).

11. The range hood of claim 6, wherein: the noise reduction assembly and the fan system (5) are arranged at intervals.