CN112301627A - Noise-reduction washing machine - Google Patents
Noise-reduction washing machine Download PDFInfo
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- CN112301627A CN112301627A CN202010971112.7A CN202010971112A CN112301627A CN 112301627 A CN112301627 A CN 112301627A CN 202010971112 A CN202010971112 A CN 202010971112A CN 112301627 A CN112301627 A CN 112301627A
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- Prior art keywords
- layer
- air duct
- noise
- washing machine
- drying air
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
Abstract
The invention discloses a noise reduction washing machine, which comprises a drying air duct, wherein the drying air duct specifically comprises: the air duct structure layer, the composite vibration damping material layer and the noise reduction coating. According to the noise reduction washing machine provided by the invention, the composite damping material layer is arranged on the outer surface of the air duct structure layer of the drying air duct, and the composite damping material layer can reduce the vibration of the air duct structure layer and effectively reduce the radiation noise of the drying air duct. The inner surface of the air duct structure layer of the drying air duct is provided with a noise reduction coating which is a low-adhesion coating, so that the friction coefficient of the inner wall of the drying air duct is very low, and the friction noise of the drying air duct is reduced; meanwhile, the attachment of the flock on the inner wall of the drying air channel is reduced, and the cleanness of the drying air channel can be guaranteed without a filter screen structure.
Description
Technical Field
The application relates to the field of noise reduction of air ducts of washing machines, in particular to a noise-reduction washing machine with a noise-reduction drying air duct.
Background
With the continuous development of the washing machine technology, the current washing machine has more and more functions, and the demand of users for the washing machine with the drying function is higher and higher. The drying system in the washing machine is generally added with a condensing air duct and a drying air duct, and the moisture in the clothes is dried in a mode of repeated heating and condensing.
As shown in fig. 1, the drying air duct in the prior art has a rough inner surface, and after the air flow generated by the fan enters the air duct from the air duct inlet, the air flow mainly includes two types: the air duct forms turbulence when being excited stably or unstably, can excite the vibration of the air duct shell, radiates sound waves out through the vibration of the shell and forms radiation noise. When the flow speed of the air in the drying air duct is very high, friction is generated between the fluid and the inner wall of the air duct, and huge air flow friction noise is emitted outwards when the air flow is transmitted to the tail pipe.
Therefore, how to reduce the noise of the drying air duct of the washing machine and further improve the user experience is a technical problem to be solved at present.
Disclosure of Invention
In view of the problem of relatively high noise of the drying air duct of the washing machine in the prior art, the invention provides a noise reduction washing machine for reducing the noise of the drying air duct of the washing machine, which comprises: a box body; the outer barrel is arranged in the box body; an inner barrel disposed in the outer barrel; the fan is used for providing air volume; the drying air duct is internally provided with a heating device and is used for heating the air quantity provided by the fan and then conveying the heated air quantity into the inner barrel; the stoving wind channel specifically includes: an air duct structure layer; the composite damping material layer is arranged on the outer surface of the air duct structure layer; and the noise reduction coating is arranged on the inner surface of the air duct structure layer.
In some embodiments of the present invention, the composite damping material layer is a multilayer structure including a damping layer, a vibration damping layer, and a sound absorbing layer;
the damping layer is arranged at the bottommost layer and connected with the air duct structural layer;
the vibration stopping layer is arranged between the damping layer and the sound absorbing layer;
the sound absorbing layer is arranged on the top layer.
In some embodiments of the invention, the damping layer is butyl rubber.
In some embodiments of the present invention, the vibration damping layer is an aluminum foil.
In some embodiments of the invention, the sound absorbing layer material is a porous dielectric material.
In some embodiments of the invention, the sound absorbing layer is medium-high frequency sound absorbing cotton.
In some embodiments of the present invention, an adhesive is disposed on the damping layer, and the composite vibration damping material layer is connected to the air duct structure layer through the adhesive.
In some embodiments of the invention, the noise reduction coating is a ceramic coating.
In some embodiments of the invention, the noise reduction coating has a thickness of less than 1 mm.
In some embodiments of the invention, the thickness of the composite damping material layer is 10-20 mm.
Compared with the washing machine in the prior art, the noise reduction washing machine provided by the embodiment of the invention has the advantages that the composite damping material layer is arranged on the outer surface of the air duct structure layer of the drying air duct, the composite damping material layer can reduce the vibration of the air duct structure layer, and the radiation noise of the drying air duct is effectively reduced. The inner surface of the air duct structure layer of the drying air duct is provided with a noise reduction coating which is a low-adhesion coating, so that the friction coefficient of the inner wall of the drying air duct is very low, and the friction noise of the drying air duct is reduced; meanwhile, the attachment of the flock on the inner wall of the drying air channel is reduced, and the cleanness of the drying air channel can be guaranteed without a filter screen structure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a diagram illustrating a mechanism of noise generation in a drying duct of a conventional washing machine;
FIG. 2 is a schematic diagram illustrating the structure of a washing machine in some embodiments of the present invention;
fig. 3 is a schematic view illustrating a structure of a drying duct of a washing machine in some embodiments of the present invention;
FIG. 4 is a schematic view illustrating a drying duct of a washing machine according to some embodiments of the present invention in a top view;
FIG. 5 is a schematic diagram illustrating a drying duct of a washing machine according to some embodiments of the present invention in a side view;
FIG. 6 is a schematic diagram illustrating a drying system of a washing machine in some embodiments of the present invention;
FIG. 7 is a schematic view showing a sectional structure A-A of FIG. 5;
FIG. 8 is a schematic diagram showing the structure of the composite damping material layer of the present invention;
FIG. 9 is a vibration diagram illustrating the structural layer of the drying duct of the prior washing machine;
fig. 10 is a vibration diagram illustrating a duct structure layer of a drying duct of a washing machine according to some embodiments of the present invention.
Reference numerals:
a, friction noise; b, radiating noise; c, an air duct inlet; d, an air duct outlet; e, heating the tube; 1, a box body; 2, an outer cylinder; 3, inner cylinder; 4, a fan; 5, drying the air duct; 6, a heating device; 7, a condenser; 50, an air duct structural layer; 51, a composite damping material layer; 52, a noise reduction coating; 501, an upper outer surface; 511, a damping layer; 512, vibration damping layer; 513, a sound absorbing layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically 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 application can be understood in a specific case by those of ordinary skill in the art.
The invention relates to a method for reducing the noise of an air duct of a washing machine, which is based on the research on the drying air duct of the washing machine, analyzes the source of the noise of the drying air duct and combines the flow characteristic of fluid to reduce the noise of the air duct from a passive noise reduction angle. The passive noise reduction is realized by isolating ears from external noise by using physical characteristics and using a sound insulation material, and has the advantages of simple principle, low noise reduction cost, large noise reduction space and good high-frequency signal isolation effect.
Compared with the washing machine in the prior art, the noise reduction washing machine provided by the embodiment of the invention has the advantages that the composite damping material layer is arranged on the outer surface of the air duct structure layer of the drying air duct, the composite damping material layer can reduce the vibration of the drying air duct, and the radiation noise of the drying air duct is effectively reduced. The inner surface of the air duct structure layer of the drying air duct is provided with a noise reduction coating which is a low-adhesion coating, so that the friction coefficient of the inner wall of the drying air duct is very low, and the friction noise of the drying air duct is reduced; meanwhile, the attachment of the flock on the inner wall of the drying air channel is reduced, and the cleanness of the drying air channel can be guaranteed without a filter screen structure.
As shown in fig. 2 to 5, a washing machine according to an embodiment of the present invention includes: a box body 1; an outer cylinder 2, wherein the outer cylinder 2 is arranged in the box body 1; an inner cylinder 3, the inner cylinder 3 being disposed in the outer cylinder 2; the fan 4 is used for providing air volume; and the drying air channel 5 is arranged in the drying air channel 5, a heating device 6 is further arranged in the drying air channel 5, and the drying air channel 5 is used for heating the air volume provided by the fan 4 and then conveying the heated air volume to the inner cylinder 3.
Among them, the general washing machines are classified into drum type washing machines and pulsator type washing machines, and the drum type washing machines mainly rely on the internal mechanical control to generate a huge centrifugal force, and cooperate with the combined action of the washing agent and water to wash the clothes; the impeller type washing machine mainly drives water flow in the drum to form a vortex which rotates rightwards and leftwards, clothes roll along with the water flow, and meanwhile, mutual friction force is generated, and the clothes are matched with a washing agent and water to remove stains. Both drum washing machines and pulsator washing machines generally include an outer tub and an inner tub disposed in the outer tub with a water inlet gap therebetween. It should be noted that, the embodiment of the present invention adopts a common drum-type washing machine to describe the scheme in detail, but the scheme of the present invention is not only applicable to the drum-type washing machine, but also applicable to other types of washing machines, and the drying air duct of the present invention still belongs to the protection scope of the present invention.
The heating device 6 is used for heating the cold air blown out by the fan 4, and may be a heating pipe, a heating wire, or a condensing pipe in a refrigerant system, which is not specifically limited herein.
Fig. 6 is a schematic diagram of a drying system of a washing machine according to an embodiment of the present invention. After the washing machine washes clothes, the washing machine enters a drying mode, the clothes are positioned in the inner drum 3, and the fan 4 and the heating device 6 are started. The air quantity provided after the fan 4 is started is blown out from the air outlet of the fan 4 to enter the drying air channel 5, is heated by the heating device 6 to become hot air, and is conveyed into the inner barrel 3 to be in contact with clothes, so that the moisture on the clothes is taken away, and the clothes are dried. The hot air which takes away the moisture of the clothes is changed into the damp and hot air which is full of water vapor, the damp and hot air enters the condensation air channel from the air inlet of the condenser 7 and is subjected to heat exchange with the water in the condensation water channel, the water vapor is condensed into water, the damp and hot air is changed into dry air, and finally the dry air enters the fan 4 from the air outlet of the condenser 7 to complete an air circulation. The wind blown out by the fan 4 continuously circulates among the drying air duct 5, the inner drum 3 and the condenser 7 until the clothes in the inner drum 3 are dried.
It should be noted that the above description of the drying system of the washing machine is only used to help understanding the present disclosure, and is not limited to the present disclosure, and the drying air duct of other drying systems adopting the present disclosure still belong to the protection scope of the present disclosure.
As shown in fig. 7, the drying duct 5 specifically includes: an air duct structure layer 50; the composite damping material layer 51 is arranged on the outer surface of the air duct structure layer 50, and the composite damping material layer 51 is arranged on the outer surface of the air duct structure layer 50; and the noise reduction coating 52 is arranged on the inner surface of the air duct structure layer.
The air duct structure layer 50 is a functional body of the drying air duct 5, is of a cylindrical structure and is used for conveying the air volume provided by the fan 4, the outer surface of the air duct structure layer 50 is provided with a composite damping material layer 51, and the composite damping material layer 51 is used for damping and absorbing the vibration of the air duct structure layer 50.
As shown in fig. 8, the turbulent wind excites vibration of the air duct structure layer 50, and the sound waves are radiated by the vibration of the air duct structure layer 50, thereby generating radiation noise. The sound can not be generated and propagated independently, the larger the vibration amplitude is, the larger the sound is, and the sound is absent without vibration. As shown in fig. 9, the drying air duct 5 of the present invention employs a composite damping material layer 51 to stop vibration and absorb sound, mainly to solve the problem of noise from the viewpoint of controlling vibration, so as to reduce the vibration of the air duct structure layer 50 and reduce the radiation noise.
Since the drying air duct 5 in the embodiment of the present invention is only the upper outer surface 501 of the air duct structure layer 50 without any constraint and is close to the cabinet 1, it is a core source of radiation noise, and the noise generated by other directions of the air duct structure layer 50 due to the spatial arrangement is small and difficult to be transmitted out. From the perspective of saving cost and utilizing space, the composite damping material layer 51 is only required to be arranged on the outer surface 501 of the upper portion of the air duct structure layer 50, so that the effect of reducing the radiation noise of the drying air duct 5 can be achieved. It should be noted that the location of the composite damping material layer 51 is only an alternative of the present invention, and it is within the scope of the present invention to arrange the composite damping material layer 51 at other locations of the air duct structure layer 50 according to the concept of the present invention.
In order to achieve better noise reduction, in some alternative embodiments of the present invention, as shown in fig. 10, the composite damping material layer 51 has a multi-layer structure including a damping layer 511, a vibration-stopping layer 512 and a sound-absorbing layer 513; the damping layer 511 is arranged at the bottommost layer and is connected with the air duct structural layer 50; the vibration stopping layer 512 is arranged between the damping layer 511 and the sound absorbing layer 513; the sound absorbing layer 513 is on top.
The composite vibration damping material layer 51 adopts a multilayer structure, the damping layer 511 with a certain thickness is compounded with the surface of the air duct structure layer 50, the damping layer 511 is forced to deform and extrude when the air duct structure layer 50 vibrates, and vibration energy is converted into heat energy through intermolecular extrusion friction in the deformation and extrusion processes, so that the amplitude is reduced, and the noise is weakened. In some alternative embodiments of the present invention, the damping layer 511 is butyl rubber. Butyl rubber is a rubber made by polymerizing isobutylene and a small amount of isoprene by positive ions to form an elastomer, and then vulcanizing. The damping performance of the butyl rubber is derived from the contribution of a polyisobutylene chain segment in the molecular structure of the butyl rubber, and the damping performance of the butyl rubber is not changed along with the change of a vulcanization system, so that the butyl rubber is an excellent damping material. It should be noted that the damping layer 511 is made of butyl rubber, which is only an alternative embodiment of the present invention, and other damping materials with excellent damping performance are selected as the damping layer 511, without departing from the protection scope of the present invention.
The damping layer 511 is connected with the air duct structure layer 50 at the bottommost layer, and the vibration stopping layer 512 is arranged above the damping layer 511. The vibration-stopping layer 512 is mainly used for restraining the deformation of the damping layer 511 and playing a certain sound insulation role at the same time. When the damping layer 511 is forced to deform and stretch, the vibration stopping layer 512 compounded on the surface of the damping layer 511 limits the deformation of the damping layer 511, increases the friction and extrusion among damping material molecules, and doubles the consumption of vibration energy, so that the air duct structure layer 50 has smaller amplitude and weaker noise. In some optional embodiments of the present invention, the vibration suppressing layer 512 is an aluminum foil. The aluminum foil has the advantages of high hardness, high tensile strength, low density and light weight, and has the advantage of low space occupancy rate while ensuring that the deformation of the damping layer 511 is effectively limited. It should be noted that the vibration damping layer 512 is an aluminum foil, which is an alternative embodiment of the present invention, and other materials with strong constraint performance are selected as the vibration damping layer 512, which still does not exceed the protection scope of the present invention.
The sound absorbing layer 513 is on the top layer, and is combined with the vibration suppressing layer 512, and functions to absorb medium and high frequency noise. The material of the sound absorption layer 513 is a porous medium material, and in some optional embodiments of the present invention, the sound absorption layer 513 is medium-high frequency sound absorption cotton, specifically, glass fiber sound absorption cotton, polyester fiber sound absorption cotton, or the like. Inhale the sound cotton and be flocculent thin fiber, be the flyover between fibre and the fibre, intertwine is in the same place, demonstrates many tiny clearances, owing to inhale the sound cotton and have the micropore that the innumerable air is constituteed, can cushion and absorb the sound wave that arrives to inhale the sound cotton, makes that there is no longer the sound wave reflection of inhaling the cotton plane of sound to go out to reach the noise that reduces stoving wind channel 5. It should be noted that the sound absorbing layer 513 is made of middle-high frequency sound absorbing cotton, which is an alternative embodiment of the present invention, and other porous medium materials are selected as the sound absorbing layer 513, without departing from the protection scope of the present invention.
The composite form of the composite vibration damping material layer 51 is conventional, and is not limited herein. In some alternative embodiments of the present invention, however, the damping layer 511 is provided with an adhesive, and the composite damping material layer 51 is connected to the air duct structure layer 50 through the adhesive. Because the side close to the outer surface of the air duct structural layer 50 is provided with the gum, the gum can be directly adhered to the air duct structural layer 50, thereby facilitating the production and the improvement of the existing accessories.
In order to ensure the noise reduction effect of the composite damping material layer 51, in some alternative embodiments of the invention, the thickness of the composite damping material layer 51 is 10-20mm, and the conventional thickness is 15 mm. The composite damping material layer 51 has too small thickness and poor noise reduction effect; the thickness is too large, the space occupancy rate is high, and the cost is high. The thickness of the composite damping material layer 51 may be adjusted in implementations based on actual machine space.
To achieve a better noise reduction effect, the low adhesion noise reduction coating 52 is spread throughout the inner surface of the air duct structure layer 50. in some alternative embodiments of the invention, the noise reduction coating 52 is a ceramic coating. The ceramic material of making an uproar coating 52 chooses for use has super hydrophobic and the strong characteristic of mechanical stability, and high temperature resistant is difficult for droing, has reduced the coefficient of friction of stoving wind channel 5 inner wall through this coating to reduce the frictional noise of stoving wind channel 5. Meanwhile, due to the low adhesive force of the noise reduction coating 52, the flock in the clothes is not easy to adhere to the inner wall of the drying air duct 5, the cleaning of the drying air duct 5 is ensured while the flowing friction noise of the air is reduced, and a filter screen structure does not need to be added to the drying air duct 5. It should be noted that the noise reduction coating 52 is a ceramic coating in an alternative embodiment of the present invention, and other materials with low adhesion may be used as the noise reduction coating 52 without departing from the scope of the present invention.
In order to ensure the quality of the noise reduction coating 52, in some alternative embodiments of the invention, the noise reduction coating 52 has a thickness of less than 1 mm. The noise reduction coating 52 is not as thick as possible, but is mainly used to reduce the friction coefficient of the inner wall of the drying air duct, and an excessively thick coating is not good enough in hardness and is prone to wrinkling and other pathological phenomena.
By applying the scheme of the invention, the composite damping material layer is arranged on the outer surface of the air duct structure layer of the drying air duct of the washing machine, and the composite damping material layer can reduce the vibration of the drying air duct and effectively reduce the radiation noise of the drying air duct. The inner surface of the air duct structure layer of the drying air duct is provided with a noise reduction coating which is a low-adhesion coating, so that the friction coefficient of the inner wall of the drying air duct is very low, and the friction noise of the drying air duct is reduced; meanwhile, the attachment of the flock on the inner wall of the drying air channel is reduced, and the cleanness of the drying air channel can be guaranteed without a filter screen structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A noise reducing washing machine comprising:
a box body;
the outer barrel is arranged in the box body;
an inner barrel disposed in the outer barrel;
the fan is used for providing air volume;
the drying air duct is internally provided with a heating device and is used for heating the air quantity provided by the fan and then conveying the heated air quantity into the inner barrel;
it is characterized in that the drying air duct specifically comprises:
an air duct structure layer;
the composite damping material layer is arranged on the outer surface of the air duct structure layer;
and the noise reduction coating is arranged on the inner surface of the air duct structure layer.
2. The noise-reducing washing machine according to claim 1, wherein the composite vibration-damping material layer is of a multilayer structure and comprises a damping layer, a vibration-stopping layer and a sound-absorbing layer;
the damping layer is arranged at the bottommost layer and connected with the air duct structural layer;
the vibration stopping layer is arranged between the damping layer and the sound absorbing layer;
the sound absorbing layer is arranged on the top layer.
3. The noise-reducing washing machine as claimed in claim 2, wherein the damping layer is butyl rubber.
4. The noise-reducing washing machine as claimed in claim 2, wherein the vibration-stopping layer is an aluminum foil.
5. The noise-reducing washing machine according to claim 2, wherein the sound-absorbing layer is made of a porous medium material.
6. The noise-reducing washing machine according to claim 2, wherein the sound-absorbing layer is medium-high frequency sound-absorbing cotton.
7. The noise-reducing washing machine according to claim 2, wherein an adhesive is provided on the damping layer, and the composite vibration-damping material layer is connected with the air duct structure layer through the adhesive.
8. The noise-reducing washing machine as set forth in claim 1, wherein the noise-reducing coating is a ceramic coating.
9. The noise reducing washing machine as set forth in claim 1, wherein the noise reducing coating has a thickness of less than 1 mm.
10. The noise-reducing washing machine according to claim 1, wherein the thickness of the composite vibration-damping material layer is 10-20 mm.
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| CN202010971112.7A CN112301627A (en) | 2020-09-16 | 2020-09-16 | Noise-reduction washing machine |
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| CN202010971112.7A CN112301627A (en) | 2020-09-16 | 2020-09-16 | Noise-reduction washing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265860A (en) * | 2021-04-16 | 2021-08-17 | 安徽舒森定制家居有限公司 | Intelligent clothes airing device with drying function |
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| CN106090461A (en) * | 2016-08-23 | 2016-11-09 | 常熟市双羽铜业有限公司 | A kind of light-high-strength titanium plastic composite |
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