CN106766084B

CN106766084B - Noise reduction structure, fan coil assembly and air cabinet unit

Info

Publication number: CN106766084B
Application number: CN201611121189.5A
Authority: CN
Inventors: 徐艳妮; 帅明月; 周建峰; 张燕清; 陈业成; 莫湛; 邹志勇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2022-05-24
Anticipated expiration: 2036-12-07
Also published as: CN106766084A

Abstract

The invention provides a silencing structure, a fan coil assembly and a wind cabinet unit, wherein the silencing structure comprises: the first panel is provided with a silencing hole; the second panel is arranged on the outer side of the first panel, and a silencing cavity is formed between the first panel and the second panel; the silencing layer is arranged in the silencing cavity. The technical scheme of the invention effectively solves the problem of higher noise of the unit in the prior art.

Description

Noise reduction structure, fan coil assembly and air cabinet unit

Technical Field

The invention relates to the field of fans, in particular to a silencing structure, a fan coil assembly and a fan cabinet unit.

Background

The horizontal cabinet type fan coil generally consists of a filtering section, a surface cooling section and a fan section, and is a whole machine box body. When the unit is designed, firstly, the model selection is carried out according to the environment of the unit application, then the checking calculation is carried out on factors such as the working environment, the model selection air quantity is larger or the checking calculation is inaccurate, so that the residual pressure of the unit is larger than the actual requirement, and the noise of the unit is larger.

Disclosure of Invention

The invention aims to provide a silencing structure, a fan coil assembly and a wind cabinet unit, and aims to solve the problem that the unit in the prior art is relatively loud in noise.

In order to achieve the above object, according to one aspect of the present invention, there is provided a sound deadening structure including: the first panel is provided with a silencing hole; the second panel is arranged on the outer side of the first panel, and a silencing cavity is formed between the first panel and the second panel; the silencing layer is arranged in the silencing cavity.

Furthermore, the sound-deadening layer is made of sound-deadening cotton.

Further, the sound attenuation structure still includes the foaming layer of setting in the amortization intracavity, and the foaming layer is located between amortization cotton and the second panel.

Furthermore, the silencing structure also comprises a frame strip, and the first panel, the second panel and the silencing layer are clamped and fixed by the frame strip.

Further, the frame strip includes: the first side wall, the second side wall and the diapire of connection between first side wall and second side wall that set up relatively, the laminating of first panel and first side wall, the laminating of second panel and second side wall.

Further, a boss is arranged on the first side wall, a first accommodating space is formed among the noise reduction layer, the first side wall and the boss, and the first panel is arranged in the first accommodating space and abutted against the boss.

Furthermore, a clamping piece is arranged on the second side wall, and a second accommodating space for accommodating the second panel is formed between the second side wall and the clamping piece.

Further, the muffling hole is circular.

Furthermore, the silencing holes are multiple, multiple silencing hole groups are formed by the silencing holes, and the multiple silencing hole groups form an array structure.

Furthermore, the silencing hole group is rectangular or V-shaped.

Furthermore, two adjacent rows of silencing hole groups are correspondingly arranged or arranged in a staggered mode.

According to another aspect of the invention, a fan coil assembly is provided, which comprises a box body, and a motor and an air duct volute which are arranged in a box body accommodating cavity, and is characterized in that the box body comprises a box body and a silencing structure, the box body and the silencing structure enclose the box body accommodating cavity, and the silencing structure is the silencing structure.

Further, the sound attenuating structure is disposed adjacent to the motor and/or the duct volute.

According to another aspect of the invention, there is provided a wind cabinet unit comprising a fan coil assembly, the fan coil assembly being as described above.

By applying the technical scheme of the invention, when the sound source is arranged on one side of the first panel of the silencing structure, which is far away from the second panel, the sound wave enters the silencing cavity formed between the first panel and the second panel through the silencing hole. The silencing layer is arranged in the silencing cavity, so that the energy of absorbing sound waves can be consumed, the intensity of the sound waves is weakened, and the purposes of absorbing the sound waves and reducing noise are achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a first embodiment of a sound attenuating structure according to the present invention;

FIG. 2 shows a schematic cross-sectional view of a side frame strip of the sound attenuating structure of FIG. 1;

FIG. 3 is a schematic view of the side frame strips of the sound attenuating structure of FIG. 1 assembled with a sound attenuating layer;

FIG. 4 is a schematic diagram showing the arrangement of the silencing aperture groups of the silencing structure of FIG. 1;

FIG. 5 is a schematic view showing the arrangement of the silencing hole groups according to the second embodiment of the silencing structure of the present invention; and

FIG. 6 shows a schematic structural view of an embodiment of a fan coil assembly according to the present invention.

Wherein the figures include the following reference numerals:

1. a motor; 2. an air duct volute; 3. a box body; 4. a sound deadening structure; 10. a first panel; 11. a silencing hole; 20. a second panel; 30. silencing cotton; 40. a foamed layer; 50. a frame strip; 51. a first side wall; 52. a second side wall; 53. a bottom wall; 54. a boss; 55. and a clamping piece.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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 invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The technical scheme of the application is mainly applied to a cabinet type fan coil, and the fan coil generally consists of a filtering section, a surface cooling section and a fan section and is a whole machine box body. The fan section comprises a motor, an air duct volute and other mechanisms, and can generate vibration in the operation process, so that certain noise is generated. In addition, in the design stage of the fan coil, the model selection and the accounting of pressure loss of the air pipe, the sealing and the like are required according to the engineering quantity. When the selection type amount of wind is great or the pressure loss of accounting is bigger partially, can lead to the residual pressure of unit great, and then lead to the residual pressure of the fan coil who designs to be obviously greater than the residual pressure of unit actual demand, further lead to the unit to produce great noise.

In order to solve the above problems, according to an aspect of the present invention, a sound deadening structure is provided.

Example one

Fig. 1 shows a schematic structural view of a first embodiment of a sound-deadening structure according to the present invention. As shown in fig. 1, the present embodiment provides a sound deadening structure including: a first panel 10, a second panel 20 and a sound-deadening layer, wherein the first panel 10 is provided with a sound-deadening hole 11, and the second panel 20 is disposed outside the first panel 10. A sound-deadening chamber is formed between the first panel 10 and the second panel 20, and a sound-deadening layer is provided in the sound-deadening chamber.

By applying the technical scheme of the invention, when the sound source is arranged on the side, away from the second panel, of the first panel of the silencing structure, sound waves enter the silencing cavity formed between the first panel and the second panel through the silencing hole. The silencing layer is arranged in the silencing cavity, so that the energy of absorbing sound waves can be consumed, the intensity of the sound waves is weakened, and the purposes of absorbing the sound waves and reducing noise are achieved.

Preferably, in this embodiment, the sound-deadening layer is sound-deadening cotton 30. The silencing cotton is also called sound-absorbing cotton, and is a sheet material which is processed by a plurality of processes from single or a plurality of different fibers. Among them, polyester fiber sound-absorbing cotton is widely used. The polyester fiber sound-absorbing cotton has a good sound-absorbing effect, is easy to obtain, and can be conveniently replaced and maintained in the later period while being easy to produce. Meanwhile, the polyester fiber sound-absorbing cotton has excellent heat-insulating property and can play a remarkable role when being applied to a fan coil needing heat exchange.

As shown in fig. 1, in the present embodiment, the sound-deadening structure further includes a foam layer 40 disposed in the sound-deadening chamber, and the foam layer 40 is located between the sound-deadening cotton 30 and the second panel 20. The foaming layer 40 is filled between the sound-deadening cotton 30 and the second panel 20, so that on one hand, the sound-deadening effect of the sound-deadening structure can be enhanced, and on the other hand, the heat-insulating effect of the sound-deadening structure can be increased. Besides the noise reduction effect, the noise reduction structure also needs to consider the structural strength, for example, the polyurethane foaming layer 40 has the advantages of light weight, high strength, high expansion, small shrinkage and the like, so that the noise reduction effect of the noise reduction structure is ensured, the strength and stability of the noise reduction structure can be ensured, and the maintenance and replacement frequency in the use process is reduced.

As shown in fig. 1, the sound-deadening structure of the present embodiment further includes a frame strip 50, and the first panel 10, the second panel 20 and the sound-deadening cotton 30 are clamped and fixed by the frame strip 50. The multi-level superimposed amortization structure forms the stable platelike structure that compacts through the centre gripping of frame strip 50, has further strengthened amortization structure's stability.

In the present embodiment, the number of the side frame strips 50 is four, and the four side frame strips include a first side frame strip, a second side frame strip, a third side frame strip and a fourth side frame strip which are connected end to end. The first side frame strip, the second side frame strip, the third side frame strip and the fourth side frame strip have the same cross-sectional structure. Thus, the processing is simple and the cost is low. Of course, as one skilled in the art would know, the first, second, third and fourth frame bars may be configured to have different cross-sectional structures according to the requirement. It is sufficient to realize the function of holding and fixing the first panel 10, the second panel 20, and the noise reduction cotton 30.

FIG. 2 shows a schematic cross-sectional view of a side frame strip of the sound attenuating structure of FIG. 1; fig. 3 shows a schematic structural view of the side frame strip of the silencing structure of fig. 1 assembled with the silencing cotton 30. As shown in fig. 1, 2 and 3, the side frame strip 50 includes: a first side wall 51, a second side wall 52 disposed oppositely, and a bottom wall 53 connected between the first side wall 51 and the second side wall 52. The first panel 10 is attached to the first sidewall 51 and the second panel 20 is attached to the second sidewall 52. The first panel 10 attached to the first side wall 51, the second panel 20 attached to the second side wall 52, and the bottom wall 53 connected between the first side wall 51 and the second side wall 52 form a sound-deadening chamber, which may function to reduce the intensity of sound waves to some extent. The provision of the sound-deadening cotton 30 and the foam layer 40 in this sound-deadening chamber significantly enhances the sound-deadening effect of the sound-deadening structure.

As shown in fig. 2, in the side frame strip 50 of the present embodiment, a boss 54 is disposed on the first sidewall 51, a first accommodating space is formed among the sound-deadening cotton 30, the first sidewall 51 and the boss 54, and the first panel 10 is disposed in the first accommodating space and abuts against the boss 54. The second side wall 52 is provided with a clamping piece 55, and a second accommodating space for accommodating the second panel 20 is formed between the second side wall 52 and the clamping piece 55. In the mounting process, the second panel 20 is mounted in the second receiving space formed between the second sidewall 52 and the clamping piece 55. The first panel 10 is abutted against the boss 54, and the first panel 10 is held by the noise-damping cotton 30 in the first accommodation space formed among the noise-damping cotton 30, the first side wall 51 and the boss 54. And finally, injecting the foaming layer 40 into the cavity between the second panel 20 and the silencing cotton 30 to complete the assembly and fixation of the silencing structure. The structure is light in weight, stable in structure, simple and convenient to assemble and has certain strength.

In the present embodiment, the muffling hole 11 is circular. The circular muffling hole 11 has the characteristics of uniform structure and easiness in processing. Of course, those skilled in the art will appreciate that the shape of the muffling hole 11 is not limited to a circle, and may be a rectangle, other polygon or irregular pattern, and the muffling hole 11 of the above shape can achieve the sound absorbing effect of the present embodiment, and therefore, all of the shapes are within the scope of the present application.

Fig. 4 shows a schematic view of the arrangement of the sound deadening groups of the sound deadening structure of fig. 1. As shown in fig. 4, the plurality of muffling holes 11 are formed, and the plurality of muffling holes 11 form a plurality of muffling hole groups, which form an array structure. A plurality of silencing holes 11 are combined into a silencing hole group and are arranged in an array mode, so that sound waves can enter the silencing structure more uniformly, and the silencing effect of the silencing structure is improved.

As shown in fig. 4, in the present embodiment, the silencing hole group has a rectangular shape. The rectangular silencing hole group can enable sound waves to uniformly enter the silencing structure, and the silencing effect of the silencing structure is enhanced. The shape of the silencing hole group can be changed according to different actual conditions so as to achieve the best silencing effect.

As shown in FIG. 4, in the present embodiment, two adjacent rows of silencing hole sets are correspondingly disposed, and the correspondingly disposed silencing hole sets are suitable for the case where the air flow rate is low.

Example two

FIG. 5 is a schematic diagram showing the arrangement of the silencing hole groups according to the second embodiment of the silencing structure of the present invention. In the embodiment shown in FIG. 5, the shapes of two pairs of silencing hole sets are improved, and the silencing hole sets are V-shaped. The V-shaped silencing hole group along the direction of sound wave transmission can enable sound waves to enter the silencing structure more uniformly, and the silencing effect of the silencing structure is improved.

The silencing hole groups arranged in different shapes can produce different effects in working environments with different air volumes and air flow rates, and the silencing effect can be improved by correspondingly setting the shapes of the silencing hole groups according to the noise size and the air flow rate. To the different amount of wind, the residual pressure of unit, amortization foaming plate structural style and overall arrangement can produce certain influence to the noise cancelling effect, and every unit has the optimization amortization overall arrangement of self. When the unit amount of wind is great, need to install amortization structure in surface cooler end foaming board position, the amortization punch combination overall arrangement of amortization structure needs to adopt the V font to distribute to misplace between two adjacent lines of amortization punch combinations and set up in order to reduce the noise of indoor return air (or outdoor new trend) when blowing through the surface cooler (or carry out the heat transfer with the surface cooler). Simultaneously, fan end, air-out side also need use amortization structure, and the amortization punch combination overall arrangement of amortization structure is similar with the surface cooler end.

As shown in FIG. 5, in the present embodiment, two adjacent rows of silencing hole sets are arranged in a staggered manner. The staggered silencing hole group is more suitable for the condition of higher air flow rate.

According to another aspect of the invention, the application further provides a fan coil assembly, and fig. 6 shows a schematic structural view of an embodiment of the fan coil assembly according to the invention. According to an embodiment of the present invention, as shown in fig. 6, the fan coil assembly of the embodiment includes a box body, and a motor 1 and a duct volute 2 disposed in a containing cavity of the box body, wherein the box body includes a box body 3 and a silencing structure 4, the containing cavity is surrounded by the box body 3 and the silencing structure 4, and the silencing structure 4 is the above silencing structure.

Because the volume of fan coil is less, compact structure can't add the muffler between fan coil's inner structure, and add the amortization structure in fan coil's outside, especially the installation muffler can increase the pressure loss at the exit of wind channel spiral case, reduces work efficiency. Therefore, for the fan coil with higher noise, the noise reduction structure is arranged on the box body, so that the noise generated by the unit can be reduced, and the working efficiency of the fan coil cannot be influenced.

According to another aspect of the present invention, there is also provided a wind cabinet assembly (not shown) comprising a fan coil assembly as described above.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

when the sound source is arranged on the side, far away from the second panel, of the first panel of the sound attenuation structure, sound waves enter a sound attenuation cavity formed between the first panel and the second panel through the sound attenuation holes. The silencing layer is arranged in the silencing cavity, so that the energy of absorbing sound waves can be consumed, the intensity of the sound waves is weakened, and the purposes of absorbing the sound waves and reducing noise are achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An acoustic dampening structure, comprising:

the sound absorbing device comprises a first panel (10), wherein a sound absorbing hole (11) is formed in the first panel (10);

a second panel (20) arranged outside the first panel (10), a sound-deadening chamber being formed between the first panel (10) and the second panel (20);

the silencing layer is arranged in the silencing cavity;

the silencing structure further comprises a side frame strip (50), and the first panel (10), the second panel (20) and the silencing layer are clamped and fixed by the side frame strip (50);

the frame strip (50) comprises: the panel comprises a first side wall (51), a second side wall (52) and a bottom wall (53) connected between the first side wall (51) and the second side wall (52), wherein the first panel (10) is attached to the first side wall (51), and the second panel (20) is attached to the second side wall (52);

a boss (54) is arranged on the first side wall (51), a first accommodating space is formed among the noise reduction layer, the first side wall (51) and the boss (54), and the first panel (10) is arranged in the first accommodating space and abutted against the boss (54);

a clamping piece (55) is arranged on the second side wall (52), and a second accommodating space for accommodating the second panel (20) is formed between the second side wall (52) and the clamping piece (55).

2. The sound-damping structure according to claim 1, characterized in that the sound-damping layer is a sound-damping cotton (30).

3. The sound-attenuating structure of claim 2, further comprising a foam layer (40) disposed within the sound-attenuating cavity, the foam layer (40) being located between the sound-attenuating cotton (30) and the second panel (20).

4. -an acoustic damping structure according to claim 1, characterized in that the damping holes (11) are circular.

5. The silencing structure of claim 4, wherein said silencing holes (11) are plural, and a plurality of said silencing holes (11) form a plurality of silencing hole groups, and a plurality of said silencing hole groups form an array structure.

6. -sound damping structure according to claim 5, characterized in that said group of sound damping holes (11) is rectangular or V-shaped.

7. The silencing structure of claim 6, wherein the silencing holes (11) in two adjacent rows are correspondingly or alternatively arranged.

8. A fan coil assembly comprises a box body, a motor (1) and a wind channel volute (2) which are arranged in a containing cavity of the box body, and is characterized in that the box body comprises a box body (3) and a silencing structure (4), the containing cavity is surrounded by the box body (3) and the silencing structure (4), and the silencing structure (4) is the silencing structure according to any one of claims 1 to 7.

9. A fan coil assembly according to claim 8, wherein the sound attenuating structure (4) is disposed adjacent to the motor (1) and/or the duct volute (2).

10. A wind cabinet assembly comprising a fan coil assembly, wherein the fan coil assembly is a fan coil assembly as claimed in claim 8 or 9.