CN213400538U - Noise reduction structure and range hood - Google Patents
Noise reduction structure and range hood Download PDFInfo
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- CN213400538U CN213400538U CN202021788312.0U CN202021788312U CN213400538U CN 213400538 U CN213400538 U CN 213400538U CN 202021788312 U CN202021788312 U CN 202021788312U CN 213400538 U CN213400538 U CN 213400538U
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Abstract
The utility model relates to a structure and lampblack absorber of making an uproar fall, including inhaling the sound structure, inhale when the sound structure is connected with the wall, form the clearance that is used for making an uproar between the two, solved prior art well lampblack absorber and produced great noise when the operation, the current poor problem of the noise reduction effect of falling the structure of making an uproar.
Description
Technical Field
The utility model relates to the technical field of household appliances, particularly, relate to a structure and lampblack absorber of making an uproar fall.
Background
In the era of rapid development of economy, people have higher and higher requirements on living environment. Therefore, the range hood for removing the kitchen oil fume becomes one of the essential appliances of each household kitchen, well solves the oil fume problem of the kitchen, but the noise generated by the factors such as fan movement or airflow impact in the range hood in the cooking process is always troubled.
In the prior art, the noise is reduced by arranging the silencing holes or installing the sound-absorbing structure on one side or two sides of the smoke inlet of the smoke-collecting hood, but the installed sound-absorbing structure is tightly attached to the wall surface, so that the noise reduction effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a structure and lampblack absorber of making an uproar fall should fall structure and lampblack absorber of making an uproar and solved the lampblack absorber and produced great noise when the operation in prior art, the current poor problem of the noise reduction effect of falling the structure of making an uproar.
In order to achieve the above object, in a first aspect, the embodiment of the present invention provides a noise reduction structure, including a sound absorption structure, when the sound absorption structure is connected with a wall surface, a gap for noise reduction is formed between the sound absorption structure and the wall surface.
In an alternative embodiment, the sound absorbing structure includes a casing and a sound absorbing part, and the sound absorbing part is provided inside the casing.
In an alternative embodiment, the sound absorbing structure comprises a casing, and the casing is provided with through holes for reducing noise.
In an alternative embodiment, the end of the housing is provided with a bend.
In an optional embodiment, one end of the bent portion, which is far away from the outer shell, is provided with a flanging structure, and the flanging structure is detachably connected with the wall surface.
In an optional embodiment, the two ends of the outer shell are both provided with the bending parts, and the two bending parts are arranged on the same side of the outer shell.
In an alternative embodiment, the housing includes a first shell and a second shell, and the first shell and the second shell are connected to form a containing cavity.
In an optional embodiment, the first housing is a groove structure, and two ends of the first housing are provided with extending portions, and the extending portions are detachably connected with the second housing.
In an optional embodiment, the first casing has a first through hole, and the second casing has a second through hole.
In an optional embodiment, the first through holes and the second through holes are arranged in a one-to-one correspondence.
In an alternative embodiment, the sound absorbing part is sound absorbing cotton.
In a second aspect, the embodiment of the utility model provides a range hood, including the lampblack absorber wall, still include any one of the above-mentioned embodiment the structure of making an uproar falls, fall the structure of making an uproar with form between the lampblack absorber wall the clearance.
Has the advantages that:
the embodiment of the utility model provides a structure of making an uproar falls, including inhaling the sound structure, when inhaling the sound structure and being connected with the wall, form the clearance that is used for making an uproar between the two.
In the above-mentioned setting, can set up sound absorbing structure in noise source department, can be thermal energy with its friction when the sound wave process is inhaled sound absorbing structure, when the sound wave process through the collection smoke cavity reflection of lampblack absorber once more through inhaling sound absorbing structure, the energy can be weakened again, thereby can play effectual noise reduction effect, additionally according to the quality law, if use the same material, the noise reduction effect that simple increase material thickness brought is not good, that is to say, play the due noise reduction effect when inhaling the sound structure tight wall face, in this application, owing to inhale and form the air gap between sound absorbing structure and the wall, be equivalent to having formed the air bed, because the elastic layer effect of air bed, the sound wave passes through the air bed and inhales the sound structural layer, the amplitude weakens by a wide margin, the sound insulation effect is obvious.
The embodiment of the utility model provides a range hood, including the above-mentioned structure of making an uproar that falls, corresponding, this range hood has the above-mentioned all advantages of making an uproar that fall, and here is no longer repeated.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a side view of a noise reduction structure connected to a wall surface according to an embodiment of the present invention;
fig. 2 is an exploded view of a noise reduction structure according to an embodiment of the present invention;
fig. 3 is a front view of a noise reduction structure provided in the embodiment of the present invention.
Icon: 10-sound absorbing structure; 20-bending part; 30-a flanging structure; 40-wall surface; 50-a first via; 60-a second via; 70-gap; 80-an extension; 90-a through hole;
101-a housing; 102-a sound absorbing part;
1011-a first housing; 1012-second housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 to 2, the noise reduction structure of the present embodiment includes a sound absorption structure 10, and when the sound absorption structure 10 is connected to a wall surface 40, a gap 70 for reducing noise is formed therebetween.
In the above-mentioned setting, can set up sound absorbing structure 10 in noise source department, can be thermal energy with its friction when sound wave process sound absorbing structure 10, when sound wave process lampblack absorber's collection smoke cavity reflection is once more through sound absorbing structure 10, the energy can be weakened again to can play effectual noise reduction effect.
In addition, according to the mass law, if the same material is used, the noise reduction effect caused by simply increasing the thickness of the material is not good, that is, the sound absorption structure 10 does not have the required noise reduction effect when being tightly attached to the wall surface 40.
It should be noted that the noise reduction structure may be connected to a wall surface of the range hood, but is not limited to the wall surface of the range hood, for example, the noise reduction structure may also be disposed on a wall surface of a fan of a refrigerator, or may also be disposed on a wall surface of other components generating noise, or may be an inner wall surface or an outer wall surface, and is preferably disposed on the inner wall surface in consideration of aesthetic design.
Optionally, the present embodiment also provides the following detailed description of the specific structure of the damper structure.
Referring to fig. 1 to 3, in the present embodiment, the sound absorbing structure 10 includes a casing 101 and a sound absorbing part 102, and the sound absorbing part 102 is provided inside the casing 101.
Optionally, since the sound absorption portion 102 is disposed inside the casing 101, when the sound wave is transmitted to the surface of the casing 101, the casing 101 itself may attenuate the amplitude of the sound wave, and when the attenuated sound wave passes through the sound absorption portion 102, the attenuated sound wave is attenuated again, so that the energy transmitted by the sound wave is greatly reduced.
Referring to fig. 1 to 3, in the present embodiment, the sound absorbing structure 10 includes a casing 101, and the casing 101 is provided with a through hole 90 for reducing noise.
Optionally, the through holes 90 may be circular holes, rhombic holes, or polygonal holes, the diameter of the through hole 90 is preferably 2mm, the distance between two adjacent through holes 90 is between 6 and 10mm, and preferably 8mm in this embodiment.
When passing through the housing 101 provided with the through-holes 90, the sound waves rub against the through-holes 90, thereby converting sound energy into heat energy, which weakens the intensity of the amplitude of the sound waves.
Referring to fig. 1, in the present embodiment, the end of the housing 101 is provided with a bent portion 20.
Optionally, the end of the housing 101 may be integrally formed with the bent portion 20, or the housing 101 may be detachably connected to the bent portion 20, for example, the end of the housing 101 is provided with a threaded hole, one end of the bent portion 20 is provided with a threaded structure, and the housing 101 is connected to the bent portion 20 through a thread.
Because of the bending portion 20, when the housing 101 is connected to the wall surface 40, a gap 70 is formed between the housing 101 and the wall surface 40, which is equivalent to an air layer, and due to the elastic layer action of the air layer, the sound wave passes through the combination of the air layer and the sound absorbing structure 10, the amplitude is greatly reduced, and the sound insulation effect of the noise reduction structure is obvious.
Referring to fig. 1, in the present embodiment, a flange structure 30 is disposed at an end of the bending portion 20 away from the housing 101, and the flange structure 30 is detachably connected to the wall surface 40.
Optionally, in this embodiment, the bent portion 20 and the flange structure 30 are integrally formed, and the flange structure 30 is detachably connected to the wall surface 40, for example, the flange structure 30 may be connected to the wall surface 40 by a screw, or may be fastened together by a snap structure.
Thus, since the housing 101 may be aged or damaged in a long term use, the flange structure 30 is detachably connected to the wall surface 40, so that the housing 101 is detachably connected to the wall surface 40, thereby facilitating the replacement of the housing 101.
Referring to fig. 1, in the present embodiment, two ends of the housing 101 are provided with the bent portions 20, and the two bent portions 20 are on the same side of the housing 101.
Optionally, the two bending portions 20 are all connected to the wall surface through the flanging structure 30, if the bending portion 20 is only disposed at one end of the outer shell 101, the end of the outer shell 101, on which the bending portion 20 is disposed, is connected to the wall surface 40, and the other end of the outer shell is in a suspended state, so that the outer shell 101 is prone to shaking due to external collision, and is not beneficial to stable connection between the outer shell 101 and the wall surface 40.
Referring to fig. 1 to 2, in the present embodiment, the casing 101 includes a first casing 1011 and a second casing 1012, and the first casing 1011 and the second casing 1012 are connected to form a receiving cavity for placing the sound absorbing part 102.
Optionally, the sound absorption portion 102 is disposed in a containing cavity formed by the first shell 1011 and the second shell 1012, so that the energy of the sound wave is greatly reduced under the dual attenuation action of the casing 101 and the sound absorption portion 102, thereby reducing the transmission of noise generated by the operation of the fan.
Referring to fig. 1-2, in the present embodiment, the first housing 1011 has a groove structure, and the two ends of the first housing 1011 are provided with the extending portions 80, and the extending portions 80 are detachably connected to the second housing 1012.
Optionally, the first housing 1011 has a hollow cavity inside, and when the first housing 1011 is connected to the second housing 1012, the sound absorbing part 102 is disposed inside the hollow cavity. Moreover, the first housing 1011 is detachably connected to the second housing 1012, for example, the first housing 1011 can be connected to the second housing 1012 by screws, and can also be clamped together by a snap structure, in this embodiment, preferably, the first housing 1011 is detachably connected to the second housing 1012 by screws.
Thus, the casing 101 may be aged or damaged in long-term use, the first casing 1011 and the second casing 1012 may be detachably connected to facilitate replacement, and the sound absorption unit 102 inside the casing 101 may be replaced periodically to ensure a good sound absorption effect.
Referring to fig. 2, in the present embodiment, the through hole 90 includes a first through hole 50 and a second through hole 60, the first through hole 50 is disposed on the first housing 1011, and the second through hole 60 is disposed on the second housing 1012.
Optionally, the first shell 1011 and the second shell 1012 are respectively provided with the first through hole 50 and the second through hole 60, and the double-layer through hole structure increases the consumption of the sound wave energy, accelerates the conversion of the sound wave energy into the heat energy, and thus improves the noise reduction effect.
Referring to fig. 2, in the present embodiment, the first through holes 50 and the second through holes 60 are arranged in a one-to-one correspondence.
Optionally, the number of the first through holes 50 is equal to that of the second through holes 60, and the first through holes and the second through holes are arranged in a vertically corresponding manner. If the first through hole 50 and the second through hole 60 are arranged in a staggered manner, the contact between the sound wave and the first through hole 50 or the second through hole 60 is not facilitated, so that the sound wave energy is prevented from being converted into heat energy, and the absorption of the noise reduction structure on the sound wave is not facilitated.
Referring to fig. 2, in the present embodiment, the sound absorbing portion 102 is sound absorbing cotton.
Optionally, inhale the sound cotton and can be different materials, can adopt resin foaming to make, also can be melamine foam to make, can also be polyurethane material or bi-component inhale sound cotton (PET/PP), preferably adopt bi-component to inhale sound cotton (PET/PP) in this embodiment, the bi-component inhales sound cotton's sound effectual, easy acquisition.
It is worth to be noted that the sound absorption coefficient of the sound absorption cotton is more than or equal to 0.6, and the sound absorption cotton has a good absorption effect on high-frequency noise above 1000 Hz.
Example two
This embodiment provides a lampblack absorber, including the lampblack absorber wall, still include the structure of making an uproar falls as in aforementioned embodiment, fall and form clearance 70 between structure and the lampblack absorber wall of making an uproar.
The lampblack absorber that this embodiment provided, including above-mentioned structure of making an uproar, corresponding, this lampblack absorber has above-mentioned all advantages of making an uproar, and this here is no longer repeated.
It should be noted that, in the case of conflict, the features in the embodiments of the present invention may be combined with each other.
Claims (10)
1. A noise reducing structure characterized by: the noise reduction structure comprises a sound absorption structure (10), wherein when the sound absorption structure (10) is connected with a wall surface (40), a gap (70) for noise reduction is formed between the sound absorption structure and the wall surface;
the sound-absorbing structure (10) comprises a casing (101) and a sound-absorbing part (102), wherein the casing (101) comprises a first shell (1011) and a second shell (1012);
the first shell (1011) and the second shell (1012) are connected to form an accommodating cavity, and the sound absorption part (102) is arranged in the accommodating cavity.
2. A noise reducing structure according to claim 1, characterized in that the sound absorbing structure comprises a casing (101), the casing (101) being provided with through holes (90) for noise reduction.
3. Noise reducing structure according to claim 2, characterized in that the end of the housing (101) is provided with a bend (20).
4. The noise reduction structure according to claim 3, wherein a flange structure (30) is disposed at an end of the bending portion (20) away from the shell (101), and the flange structure (30) is detachably connected to the wall surface (40).
5. A noise reducing structure according to claim 3, characterized in that both ends of the outer shell (101) are provided with the bent portion (20), and the two bent portions (20) are on the same side of the outer shell (101).
6. Noise reducing structure according to claim 1, characterized in that the first housing (1011) is a groove structure, and both ends of the first housing (1011) are provided with extensions (80), and the extensions (80) are detachably connected with the second housing (1012).
7. The noise reduction structure according to claim 1, wherein the first housing (1011) has a first through hole (50) formed therein, and the second housing (1012) has a second through hole (60) formed therein.
8. The noise reduction structure according to claim 7, wherein the first through holes (50) are provided in one-to-one correspondence with the second through holes (60).
9. Noise reduction structure according to claim 1, characterized in that the sound absorbing part (102) is sound absorbing cotton.
10. A range hood, the range hood includes the range hood wall, characterized by, still include according to the structure of making an uproar of any claim 1-9, make an uproar structure and form the said interval between the said range hood wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788312.0U CN213400538U (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and range hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788312.0U CN213400538U (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and range hood |
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| Publication Number | Publication Date |
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| CN213400538U true CN213400538U (en) | 2021-06-08 |
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| CN202021788312.0U Active CN213400538U (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and range hood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023292A (en) * | 2021-11-15 | 2022-02-08 | 杭州老板电器股份有限公司 | Noise reduction device and tabletop smoke machine |
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2020
- 2020-08-24 CN CN202021788312.0U patent/CN213400538U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023292A (en) * | 2021-11-15 | 2022-02-08 | 杭州老板电器股份有限公司 | Noise reduction device and tabletop smoke machine |
| CN114023292B (en) * | 2021-11-15 | 2024-09-06 | 杭州老板电器股份有限公司 | Noise reduction device and desktop cigarette machine |
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