CN206959198U - Silencer cover and air conditioner - Google Patents

Abstract

The utility model provides a noise reduction cover and an air conditioner. The noise reduction cover includes: a cover body, which can be covered on a compressor assembly; connecting ribs, which are arranged on the inner wall surface of the cover body; an inner layer plate, which is installed in the cover body, On the connecting rib, and form at least one closed cavity with the connecting rib and the cover body, at least one elongated hole is arranged on the inner plate, and the elongated hole communicates with the closed cavity; wherein, the noise generated by the compressor assembly enters the sound-absorbing cover Finally, the air column in the elongated hole can be repeatedly vibrated under the elastic action of the air in the closed cavity. This technical solution can form one or more Helmholtz resonant cavities in the cover body, so that the noise generated by the compressor components can be absorbed according to the Helmholtz noise elimination principle, and then these noises can be prevented from being transmitted into the human ear through the air, Therefore, the noise during operation of the compressor of the air conditioner can be reduced, and the sound quality during operation of the compressor of the air conditioner can be improved, so as to improve user experience.

Description

Noise hood and air conditioner

technical field

The utility model relates to the field of air conditioning, in particular to a muffler cover and an air conditioner.

Background technique

When the air conditioner is running, the radiated noise from the compressor and piping enters the human ear through the air, resulting in an increase in the noise level of the outdoor unit of the air conditioner and deterioration of the noise quality of the outdoor unit of the air conditioner, and the high noise level and poor sound quality of the outdoor unit of the air conditioner will cause Reduce user experience, thereby causing user complaints and complaints.

Therefore, how to propose an air conditioner that can reduce noise and improve sound quality has become a problem to be solved urgently.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art or the related art.

Therefore, an object of the present utility model is to provide a sound absorbing cover.

Another object of the present utility model is to provide an air conditioner comprising the above-mentioned noise reduction cover.

In order to achieve the above purpose, the embodiment of the first aspect of the utility model provides a sound-absorbing cover for a compressor assembly of an air conditioner, the compressor assembly includes a compressor and piping, and the sound-absorbing cover includes: a cover body, It can be covered on the compressor assembly; the connecting rib is arranged on the inner wall surface of the cover body; the inner plate is installed in the cover body, on the connecting rib, and connected with the connecting rib and the The cover body forms at least one closed cavity, and at least one elongated hole is provided on the inner layer plate, and the elongated hole communicates with the closed cavity; wherein, the noise generated by the compressor assembly enters the Behind the muffler cover, the air column in the elongated hole can be repeatedly vibrated under the elastic action of the air in the closed cavity.

The muffler cover provided by the embodiment of the first aspect of the utility model includes a cover set on the compressor and the piping, and an inner plate set in the cover body, and the inner plate is provided with a plurality of elongated holes , with this structure, the inner plate can form multiple closed cavities with the inner wall surface of the cover body and the connecting ribs, and the elongated holes can be connected with the closed cavities. Therefore, by reasonably setting the width of the elongated holes and the inner layer The distance between the plate and the inner wall of the cover can form one or more Helmholtz resonance cavities in the cover, so according to the principle of Helmholtz noise reduction, when the cover is placed on the air conditioner When the compressor and piping are connected, the noise generated by the compressor and piping can enter the resonance cavity in the muffler cover, which can cause the air column in the elongated hole to vibrate, thereby making the air in the elongated hole vibrate. The columns are deformed by compression or expansion, which in turn can dissipate large amounts of acoustic energy. Therefore, by installing the sound-absorbing cover on the compressor and piping of the air conditioner, most of the noise can be absorbed by the Helmholtz sound absorption principle, and these noises can be prevented from being transmitted into the human ear through the air, so that Reduce the noise when the compressor of the air conditioner is running, improve the sound quality of the compressor of the air conditioner when it is running, so as to improve the user experience. Among them, the noise reduction working principle of the noise reduction cover is as follows: when the compressor of the air conditioner is running, after the noise generated by the compressor and the piping enters the long hole, the air in the long hole can be compressed to make the The air column in the elongated hole vibrates. At this time, the air in the elongated hole forms an air column, and the air column has a certain quality, so it can be equivalent to an air mass block. The air between the laminates will generate a damping force on the air column in the long strip hole, so it can be equivalent to an air spring, so that the equivalent air mass can vibrate repeatedly under the action of the equivalent air spring, Therefore, on the one hand, the continuous vibration of the air column can consume a part of the sound energy of the noise. On the other hand, when the air column vibrates, the air column itself rubs against itself or with the wall of the long strip hole on the inner plate, so that it can pass through the friction. The other part of the sound energy of the noise is converted into heat energy and consumed, so that the noise reduction cover can be used to achieve the purpose of noise reduction, thereby effectively reducing the noise of the air conditioner during operation to improve user experience. At the same time, this kind of noise reduction cover can completely cover the compressor and piping inside, so that the noise emitted by the compressor and piping from all directions can be eliminated, and the noise reduction effect can be increased to improve the noise reduction effect. In addition, compared with other noise reduction solutions for compressors of air conditioners on the market, this type of noise reduction method has a simpler structure, more reliable noise reduction, and is easier to process, thereby improving the noise reduction effect and reducing noise reduction. sound cost. At the same time, by arranging the elongated hole on the sound-absorbing plate, on the one hand, the frequency range in which the sound-absorbing cover can absorb noise can be expanded, specifically, it can basically be used to eliminate all noise from low frequency to high frequency, so the sound-absorbing effect can be improved. it is good. In addition, compared with the solution of setting through holes, the solution of setting elongated holes on the sound-absorbing plate can not only set the width smaller, but also reduce the difficulty of processing, so that the noise reduction ability of the product can be enhanced, and the Can reduce the production cost of the product.

In addition, the noise reduction cover provided according to the above-mentioned embodiments of the utility model also has the following additional technical features:

In the above technical solution, preferably, the width of the elongated hole is greater than or equal to 0.5 mm and less than or equal to 1.5 mm, or the width of the elongated hole is equal to 1 mm.

In this technical solution, by setting the width of the elongated hole within the range of greater than or equal to 0.5 mm and less than or equal to 1.5 mm, more preferably, it is set to 1 mm, so that the muffler cover can eliminate most of the noise generated by the compressor and piping. The noise has a good absorption effect, so when the noise generated by the compressor and piping enters the muffler cover, it can cause the air column in the long hole to resonate, so that a large amount of noise of various frequencies can be absorbed , which can further reduce noise and improve the sound quality of the product, so as to further enhance the user experience.

In any of the above technical solutions, preferably, the length of the elongated hole is greater than or equal to 60 mm and less than or equal to 100 mm.

In these technical solutions, the length of the long strip hole can be set within the range of greater than or equal to 60mm and less than or equal to 100mm, specifically, such as 80mm, this setting can make the noise reduction effect more obvious, and thus can absorb more Noise, to effectively reduce noise and improve sound quality.

In any of the above technical solutions, preferably, the punching rate of the inner layer plate is greater than or equal to 1% and less than or equal to 3%, or the punching rate of the inner layer plate is greater than or equal to 2%.

In these technical solutions, it is preferable to set the punching rate of the inner layer plate to 1%-3%, and more preferably, the punching rate of the inner layer plate can be set to 2%. The number of elongated holes on the board is more reasonable, so it can better eliminate noise.

In any of the above technical solutions, preferably, the thickness of the inner plate is greater than or equal to 0.1 mm and less than or equal to 1 mm.

In these technical solutions, by setting the thickness of the inner plate within the range of greater than or equal to 0.1mm and less than or equal to 1mm, the muffler cover can have a good absorption effect on most of the noise generated by the compressor assembly, so that when When the noise generated by the compressor components enters the muffler cover, it can cause the air column in the long hole to resonate, so that a lot of noise can be absorbed, which can further reduce the noise and improve the sound quality of the product, so as to further enhance the user experience. experience.

In any of the above technical solutions, preferably, there are multiple closed cavities, multiple elongated holes, the elongated holes are arranged along the axial direction of the cover, Or the elongated holes are arranged along the circumferential direction of the cover body.

In these technical solutions, there are preferably a plurality of elongated holes, and they are preferably arranged along the axial direction of the cover body, and this arrangement can ensure the noise-absorbing effect of the product. Of course, the elongated holes can also be arranged along the circumferential direction of the cover body.

Wherein, preferably, the width of the elongated hole is t, the interval between two adjacent elongated holes in the circumferential direction of the cover is greater than or equal to 15t and less than or equal to 25t, and/or adjacent The distance between the two elongated holes in the axial direction of the cover is greater than or equal to 15t and less than or equal to 25t.

In this technical solution, it is preferable to set the axial interval and circumferential interval between two adjacent elongated holes to be 20 times the width of the elongated holes, which can make the elongated holes The distribution is more reasonable, which can improve the noise reduction effect.

Wherein, preferably, the plurality of closed cavities correspond to the plurality of elongated holes one by one, or any one of the closed cavities is correspondingly provided with a plurality of elongated holes.

In this technical solution, there can be one-to-one correspondence between multiple closed cavities and multiple elongated holes, and they can also be arbitrarily matched. This kind of arrangement can be arbitrarily provided with multiple elongated holes on the inner plate during processing. , and arbitrarily set several connecting ribs on the inner wall of the cover body, and then install the inner layer board on the connecting ribs. This kind of setting does not need to consider the long strip holes on the inner layer board too much during processing. The corresponding relationship with the connecting ribs makes the processing of the inner plate and the setting of the connecting ribs more random, thereby reducing the processing difficulty and further reducing the processing cost.

Wherein, preferably, the plurality of elongated holes include at least a first elongated hole and a second elongated hole with two diameters. Of course, more third elongated holes and fourth elongated holes with different diameters may also be included. This arrangement enables the sound absorbing hood to absorb more frequency noises, thereby being able to absorb noises of various frequencies.

In any of the above technical solutions, preferably, there are multiple elongated holes, and the plurality of elongated holes are evenly and symmetrically arranged on the inner layer board.

In these technical solutions, by providing a plurality of elongated holes, the plurality of elongated holes can be used to simultaneously absorb sound, thereby further reducing the noise of the product and further improving the sound quality of the product. The uniform and symmetrical arrangement of a plurality of elongated holes on the inner layer plate can make the noise reduction capabilities of the noise reduction cover consistent in all directions, thereby making the sound reduction of the sound reduction cover more uniform.

In any of the above technical solutions, preferably, there are multiple connecting ribs, and the multiple connecting ribs are evenly spaced on the inner wall of the cover.

In these technical solutions, the number of connecting ribs is preferably multiple, so that multiple connecting ribs can be used to support and install the inner plate at the same time, thereby enhancing the strength of the inner plate. Evenly spaced arrangement on the top can make the supporting force of the connecting ribs on the inner plate consistent in all directions and can make the cover itself symmetrical, thus further improving the overall strength of the product.

In any of the above technical solutions, preferably, the number of the inner layer plates is multiple, and the plurality of inner layer plates are connected to form an inner cylinder, the shape of the inner cylinder is consistent with the shape of the cover body, so The elongated hole is provided on the inner side wall of the inner cylinder and/or the inner top wall of the inner cylinder.

In these technical solutions, it is preferable to use a plurality of inner plates to assemble an inner cylinder with one end open and one end closed, so that the inner wall of the inner cylinder can be provided with elongated holes for noise reduction, and the inner cylinder can also be The inner bottom wall of the anechoic enclosure is provided with long strip holes for noise reduction, so that both the side and the top of the anechoic enclosure can be used to absorb noise, thereby improving the noise reduction effect of the anechoic enclosure. The shape of the cover body is consistent with the shape of the inner cylinder so that the cover body and the inner cylinder can be matched, so that more noise can be absorbed, the noise of the product can be significantly reduced, the sound quality of the product can be improved, and the user experience can be improved. . Wherein, specifically, if the cover body is a hollow cylinder with one end open and one end closed, the inner cylinder is also processed into a hollow cylinder with one end open and one end closed.

In any of the above technical solutions, preferably, the cover is a hollow elliptical cylinder with one end open.

In these technical solutions, the cover body is preferably a hollow elliptical cylinder with one end open and one end closed, so that the compressor and piping can be covered by the sound-absorbing cover on the one hand; Therefore, setting the cover body in an elliptical shape can also make the overall structure of the noise reduction cover, the compressor and the piping fit with each other, thereby making the structure of the air conditioner more reasonable and compact.

Of course, the cover body can also be other cylinders with one end open and hollow, such as square cylinders, circular cylinders and the like.

Wherein, preferably, the ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder is greater than or equal to 1.2 and less than or equal to 1.6.

In these technical solutions, the ratio of the major axis to the minor axis of the elliptical shape formed by the compressor and the piping is approximately 1.5, so by combining the length of the major axis of the elliptical cylinder with the length of the minor axis of the elliptical cylinder The ratio is set within the range of greater than or equal to 1.2 and less than or equal to 1.6, so that the size of the noise reduction cover and the overall structural size of the compressor and piping can be generally adapted to each other, and the structure of the air conditioner can be made more reasonable and compact.

Wherein, preferably, the ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder is 1.4, that is, the length of the major axis of the elliptical cylinder to the length of the elliptical cylinder The ratio of the lengths of the minor axes of the cylinders is preferably 7:5.

In any of the above technical solutions, preferably, the height of the cover is greater than the height of the compressor assembly, the width of the cover is greater than the width of the compressor assembly, and the length of the cover is greater than the The length of the compressor assembly.

In these technical solutions, the length, width, and height of the noise reduction cover can be set slightly larger than the overall length, width, and height of the compressor and piping, so that the cover can be installed on the compressor and piping more conveniently. , At the same time, it is also possible to disassemble the sound-absorbing cover more conveniently, thus improving the convenience of disassembling and assembling the sound-absorbing cover.

Further, preferably, the height of the cover is 40%-50% larger than the height of the compressor and the piping, and the width of the cover is 20%-30% larger than the width of the compressor and the piping, so The length of the cover body is 30%-50% larger than the length of the compressor and piping.

In these technical solutions, the length, width, and height of the sound-absorbing cover can be reasonably set according to the overall length, width, and height of the compressor and the piping, so that the length, width, and height of the sound-absorbing cover can be made more reasonable.

In any of the above technical solutions, preferably, the cover body and the connecting rib are of an integrated structure.

In these technical solutions, it is preferable to set the cover body and the connecting ribs into an integrated structure. On the one hand, this arrangement can effectively ensure the connection strength between the cover body and the connecting ribs, and on the other hand, it can effectively reduce the processing difficulty of the product. , In addition, the limited cover body and the connecting rib can be made integrally and mass-produced to improve production efficiency and reduce the cost of process materials.

In any of the above technical solutions, preferably, the cover is a plastic cover, the inner layer board is a resin inner layer board or a plastic inner layer board, and the connecting rib is made of rubber.

In these technical solutions, it is preferable to set the cover body as plastic, because plastic is less likely to transmit noise, so the cover body provided with plastic can further insulate noise, and the inner layer board is preferably a resin inner layer board or a plastic inner layer Board, because these two kinds of inner layer boards have better flexibility and better deformation ability, so they can absorb more noise and make the inner layer board use for a long time without damage. The connecting rib is preferably made of rubber, because the rubber has a certain degree of elasticity, so it can provide a certain buffer force for the inner plate when the inner plate absorbs vibration, so as to prevent the damage of the inner plate, and at the same time, the rubber can further isolate the noise , so that the noise can be further reduced, the sound quality can be improved, and the user experience can be improved.

In any of the above-mentioned technical solutions, preferably, the sound-absorbing cover further includes: a mounting ring, sleeved and mounted on the opening end of the cover body, a plurality of mounting holes are provided on the mounting ring, and the sound-absorbing cover can pass through The mounting ring is mounted on the chassis of the air conditioner.

In these technical solutions, multiple mounting holes can be set on the mounting ring, and multiple threaded holes can be set on the chassis of the air conditioner, so that the installation between the mounting ring and the chassis can be realized through screws, etc., and then it can The sound-absorbing cover is simply and conveniently installed on the chassis, thereby reducing the installation difficulty of the sound-absorbing cover and improving installation efficiency, and the screw fixing can also make the installation of the sound-absorbing cover more reliable.

Wherein, preferably, the mounting ring and the cover body are integrally structured.

The embodiment of the second aspect of the utility model provides an air conditioner, including a chassis; A shroud is provided over the compressor assembly and mounted on the chassis.

The air conditioner in the embodiments of the present utility model has the sound-absorbing cover provided by any embodiment of the first aspect of the present utility model, so the air-conditioner has all the beneficial effects of the sound-absorbing cover provided by any of the above-mentioned embodiments, and will not be repeated here. .

Wherein, preferably, the sound-absorbing cover is fixedly installed on the chassis by screws.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a sound-absorbing cover described in an embodiment of the present invention;

Fig. 2 is another structural schematic diagram of the noise reduction cover described in an embodiment of the present invention;

Fig. 3 is another structural schematic diagram of the sound-absorbing cover according to an embodiment of the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 3 is:

1 muffler cover, 12 cover bodies, 14 connecting ribs, 16 inner layer plates, 162 elongated holes, 18 mounting rings.

Detailed ways

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following limitations of the specific embodiments disclosed.

The sound-absorbing cover 1 according to some embodiments of the present utility model will be described below with reference to FIGS. 1 to 3 .

As shown in Figures 1 to 3, the embodiment of the first aspect of the utility model provides a noise reduction cover 1 for a compressor assembly of an air conditioner, the compressor assembly includes a compressor and piping, and the noise reduction cover 1 includes: a cover The body 12 can be covered on the compressor assembly; the connecting rib 14 is arranged on the inner wall surface of the cover body 12; the inner layer plate 16 is installed in the cover body 12, on the connecting rib 14, and is connected with the connecting rib 14 and the cover The body 12 forms at least one closed cavity, and the inner plate 16 is provided with at least one elongated hole 162, and the elongated hole 162 communicates with the closed cavity; wherein, after the noise generated by the compressor assembly enters the sound-absorbing cover 1, it can make the long The air column in the strip-shaped hole 162 vibrates repeatedly under the elastic action of the air in the closed cavity.

The muffler cover 1 provided by the embodiment of the first aspect of the utility model includes a cover body 12 covering the compressor and piping, and an inner layer plate 16 arranged in the cover body 12, and the inner layer plate 16 is provided with A plurality of elongated holes 162, with this structure, the inner plate 16 can form a plurality of closed cavities with the inner wall surface of the cover body 12 and the connecting ribs 14, and the elongated holes 162 can be connected with the closed cavities. Therefore, through Reasonably setting the width of the strip-shaped hole 162 and the distance between the inner plate 16 and the inner wall of the cover body 12 can form one or more Helmholtz resonant cavities in the cover body 12, so that according to Helmholtz The principle of noise reduction shows that when the cover body 12 is placed on the compressor and piping of the air conditioner, the noise generated by the compressor and piping can enter the resonance cavity in the noise reduction cover 1, thereby causing long strips The vibration of the air column in the shaped hole 162 can further cause the air column in the elongated hole 162 to undergo compression or expansion deformation, thereby dissipating a large amount of sound wave energy. Therefore, by setting the sound-absorbing cover 1 outside the compressor and pipes of the air conditioner, most of the noise can be absorbed by the Helmholtz sound absorption principle, thereby preventing these noises from being transmitted into the human ear through the air. It can reduce the noise when the compressor of the air conditioner is running, and improve the sound quality of the compressor of the air conditioner when it is running, so as to improve the user experience. Wherein, the noise reduction working principle of the noise reduction cover is as follows: when the compressor of the air conditioner is running, the noise generated by the compressor and the piping enters the elongated hole 162, and the air in the elongated hole 162 can be compressed. And make the air column in the elongated hole 162 vibrate, now the air in the elongated hole 162 forms an air column, and the air column has a certain quality, so it can be equivalent to an air mass block, and the cover body 12 The air between the inner wall surface and the inner plate 16 will produce a damping force on the air column in the elongated hole 162, so it can be equivalent to an air spring, so that the equivalent air mass block can be used in the equivalent air Under the action of the spring, it vibrates repeatedly, so that on the one hand, the continuous vibration of the air column can consume part of the sound energy of the noise; The hole wall friction, so that the other part of the sound energy of the noise can be converted into heat energy through friction and consumed, so that the noise reduction cover can be used to achieve the purpose of noise reduction, which can effectively reduce the noise of the air conditioner during operation. to improve user experience. At the same time, this kind of noise reduction cover can completely cover the compressor and piping inside, so that the noise emitted by the compressor and piping from all directions can be eliminated, and the noise reduction effect can be increased to improve the noise reduction effect. In addition, compared with other noise reduction solutions for compressors of air conditioners on the market, this type of noise reduction method has a simpler structure, more reliable noise reduction, and is easier to process, thereby improving the noise reduction effect and reducing noise reduction. sound cost. At the same time, by arranging the elongated hole 162 on the sound-absorbing plate, on the one hand, the frequency range in which the sound-absorbing cover 1 can absorb noise can be expanded, specifically, it can basically be used to eliminate all noise from low frequency to high frequency, so that the sound-absorbing Better results. In addition, compared with the solution of setting through holes, the solution of setting the elongated hole 162 on the sound attenuation plate can set the width smaller and reduce the difficulty of processing, so that the noise reduction ability of the product can be enhanced. It can also reduce the production cost of the product.

In the above embodiment, preferably, the width of the elongated hole 162 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm, or the width of the elongated hole 162 is equal to 1 mm.

In this embodiment, by setting the width of the elongated hole 162 within the range of greater than or equal to 0.5mm and less than or equal to 1.5mm, more preferably, set to 1mm, so that the muffler cover can produce a large impact on the compressor and piping. Most of the noise has a good absorption effect, so that when the noise generated by the compressor and piping enters the muffler cover 1, the air column in the elongated hole 162 can be resonated, so that a large number of noises of various frequencies can be made to resonate. It is absorbed, which can further reduce noise and improve the sound quality of the product to further enhance the user experience.

In any of the above embodiments, preferably, the length of the elongated hole 162 is greater than or equal to 60 mm and less than or equal to 100 mm.

In these embodiments, the length of the strip-shaped hole 162 can be set within a range of greater than or equal to 60mm and less than or equal to 100mm, specifically, such as 80mm. This setting can make the noise reduction effect more obvious, and thus can absorb more noise to effectively reduce noise and improve sound quality.

In any of the above embodiments, preferably, the punching rate of the inner layer plate 16 is greater than or equal to 1% and less than or equal to 3%, or the punching rate of the inner layer plate 16 is greater than or equal to 2%.

In these embodiments, it is preferable to set the punching rate of the inner layer plate 16 to 1%-3%, and more preferably, the punching rate of the inner layer plate 16 can be set to 2%. The number of the elongated holes 162 on the laminate 16 is reasonable, so that the noise can be better eliminated.

In any of the above embodiments, preferably, the thickness of the inner plate 16 is greater than or equal to 0.1 mm and less than or equal to 1 mm.

In these embodiments, by setting the thickness of the inner plate 16 within the range of greater than or equal to 0.1 mm and less than or equal to 1 mm, the muffler cover can better absorb most of the noise generated by the compressor assembly, thereby When the noise generated by the compressor assembly enters the muffler cover 1, the air column in the elongated hole 162 can be resonated, so that a large amount of noise can be absorbed, which can further reduce the noise and improve the sound quality of the product. Further improve user experience.

In any of the above embodiments, preferably, as shown in Figure 2 and Figure 3, the number of closed cavities is multiple, and the number of elongated holes 162 is multiple, as shown in Figure 2 and Figure 3, the elongated The shaped holes 162 are arranged along the axial direction of the cover body 12 , or the elongated holes 162 are arranged along the circumferential direction of the cover body 12 (not shown in this embodiment).

In these embodiments, as shown in FIG. 2 and FIG. 3 , there are preferably multiple elongated holes 162 , and they are preferably arranged along the axial direction of the cover body 12 , which can ensure the effect of absorbing noise of the product. Of course, the elongated hole 162 can also be arranged along the circumferential direction of the cover body 12 .

Wherein, preferably, the width of the elongated hole 162 is t, the interval between two adjacent elongated holes 162 in the circumferential direction of the cover body 12 is greater than or equal to 15t and less than or equal to 25t, and/or the interval between two adjacent elongated holes 162 is The spacing of the strip-shaped holes 162 in the axial direction of the cover body 12 is greater than or equal to 15t and less than or equal to 25t.

In this embodiment, it is preferable to set the axial interval and circumferential interval between two adjacent elongated holes 162 to be 20 times the width of the elongated holes 162. This setting can make the elongated holes 162 inside The distribution on the layer board 16 is more reasonable, so the sound attenuation effect can be improved.

Wherein, preferably, a plurality of closed cavities correspond to a plurality of elongated holes 162 one by one, or a plurality of elongated holes 162 are correspondingly provided on any closed cavity.

In this embodiment, there can be one-to-one correspondence between the plurality of closed cavities and the plurality of elongated holes 162, and they can also be arbitrarily matched. This kind of arrangement can arbitrarily arrange a plurality of elongated strips on the inner layer plate 16 during processing. shaped holes 162, and arbitrarily set several connecting ribs 14 on the inner wall of the cover body 12, and then install the inner layer plate 16 on the connecting ribs 14. This kind of setting does not need to think too much about the inner layer during processing. The corresponding relationship between the elongated holes 162 on the plate 16 and the connecting ribs 14 makes the processing of the inner layer plate 16 and the setting of the connecting ribs 14 more random, thereby reducing the processing difficulty and further reducing the processing cost.

Wherein, preferably, the plurality of elongated holes 162 at least include a first elongated hole and a second elongated hole with two diameters. Of course, more third elongated holes and fourth elongated holes with different diameters may also be included. This arrangement enables the sound absorbing hood to absorb more frequency noises, thereby being able to absorb noises of various frequencies.

In any of the above embodiments, preferably, as shown in FIG. 1 to FIG. 3 , there are multiple elongated holes 162 , and the plurality of elongated holes 162 are uniformly and symmetrically arranged on the inner plate 16 .

In these embodiments, by providing a plurality of elongated holes 162 , the multiple elongated holes 162 can be used to simultaneously absorb sound, thereby further reducing the noise of the product and further improving the sound quality of the product. The uniform and symmetrical arrangement of the plurality of elongated holes 162 on the inner layer plate 16 can make the noise reduction capability of the noise reduction cover 1 consistent in all directions, thus making the sound reduction of the sound reduction cover 1 more uniform.

In any of the above embodiments, preferably, there are multiple connecting ribs 14 , and the multiple connecting ribs 14 are evenly spaced on the inner wall of the cover body 12 .

In these embodiments, the number of connecting ribs 14 is preferably multiple, so that multiple connecting ribs 14 can be used to support and install the inner plate 16 at the same time, so that the strength of the inner layer plate 16 can be enhanced. At the same time, the multiple connecting ribs 14 Evenly spaced arrangement on the inner wall of the cover body 12 can make the supporting force of the connecting ribs 14 on the inner layer plate 16 consistent in all directions and can make the cover body 12 itself symmetrical, thus further improving the overall strength of the product.

In any of the above embodiments, preferably, as shown in FIG. 2 and FIG. 3 , the number of inner layer plates 16 is multiple, and the plurality of inner layer plates 16 are connected to form an inner cylinder, and the shape of the inner cylinder is consistent with that of the cover body 12. The shapes are consistent, and the inner side wall of the inner cylinder and/or the inner top wall of the inner cylinder are provided with elongated holes 162 .

In these embodiments, a plurality of inner plates 16 can preferably be used to assemble an inner tube with one end open and one end closed, so that the inner side wall of the inner tube can be provided with elongated holes 162 for sound attenuation, and the An elongated hole 162 is provided on the inner bottom wall of the inner cylinder for noise reduction, so that both the side and the top of the noise reduction cover 1 can be used to absorb noise, thereby improving the noise reduction effect of the noise reduction cover. And the shape of the cover body 12 is consistent with the shape of the inner cylinder, which can make the cover body 12 and the inner cylinder fit, so as to absorb more noise, significantly reduce the noise of the product, improve the sound quality of the product, and then improve the user experience. Use experience. Wherein, specifically, if the cover body 12 is a hollow cylinder with one end open and one end closed, the inner cylinder is also processed into a hollow cylinder with one end open and one end closed.

In any of the above embodiments, preferably, as shown in FIG. 2 and FIG. 3 , the cover body 12 is a hollow elliptical cylinder with one end open.

In these embodiments, the cover body 12 is preferably a hollow elliptical cylinder with one end open and one end closed. On the one hand, the sound-absorbing cover 1 can be used to cover the compressor and the piping. Therefore, the cover body 12 is arranged in an elliptic shape, which can also make the overall structure of the noise reduction cover 1, the compressor and the piping fit with each other, and then make the structure of the air conditioner more reasonable and compact.

Certainly, the cover body 12 can also be other cylinders with one end open and hollow, such as square cylinders, circular cylinders and the like.

Wherein, preferably, the ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder is greater than or equal to 1.2 and less than or equal to 1.6.

In these embodiments, the ratio of the major axis to the minor axis of the elliptical shape formed by the compressor and piping is approximately 1.5, so by dividing the length of the major axis of the elliptical cylinder with the length of the minor axis of the elliptical cylinder The ratio is set within the range of greater than or equal to 1.2 and less than or equal to 1.6, so that the size of the sound absorbing cover 1 and the overall structural size of the compressor and piping can be generally adapted to each other, thereby making the structure of the air conditioner more reasonable and compact.

Wherein, preferably, the ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder is 1.4, that is, the ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder The ratio is preferably 7:5.

In any of the above embodiments, preferably, the height of the cover body 12 is greater than the height of the compressor assembly, the width of the cover body 12 is greater than the width of the compressor assembly, and the length of the cover body 12 is greater than the length of the compressor assembly.

In these embodiments, the length, width and height of the sound-absorbing cover 1 can be set slightly larger than the overall length, width and height of the compressor and the piping, so that the cover body 12 can be installed on the compressor and the piping more conveniently. At the same time, the sound-absorbing cover 1 can be disassembled more conveniently on the piping, so the convenience of disassembling and assembling the sound-absorbing cover 1 can be improved.

Further, preferably, the height of the cover body 12 is 40%-50% larger than the height of the compressor and the piping, the width of the cover body 12 is 20%-30% larger than the width of the compressor and the piping, and the length of the cover body 12 is larger than the compressed air. The length of machine and piping is 30%-50% larger.

In these embodiments, the length, width, and height of the sound-absorbing cover 1 can be reasonably set according to the overall length, width, and height of the compressor and piping, so that the length, width, and height of the sound-absorbing cover 1 can be more reasonable.

In any of the above embodiments, preferably, the cover body 12 and the connecting rib 14 are of an integrated structure.

In these embodiments, it is preferable to set the cover body 12 and the connecting rib 14 into an integrated structure. On the one hand, this arrangement can effectively ensure the connection strength between the cover body 12 and the connecting rib 14, and on the other hand, effectively reduce the The processing difficulty of the product, in addition, the cover body 12 and the connecting rib 14 can be made integrally and mass-produced, so as to improve production efficiency and reduce the cost of process materials.

In any of the above embodiments, preferably, the cover body 12 is a plastic cover body, the inner layer board 16 is a resin inner layer board or a plastic inner layer board, and the connecting rib is made of rubber.

In these embodiments, the cover body 12 is preferably set to plastic, because plastic is less likely to transmit noise, so the cover body 12 provided with plastic can further insulate noise, and the inner layer plate 16 is preferably a resin inner layer plate or Plastic inner boards, because these two kinds of inner boards 16 have better flexibility and better deformation ability, so they can absorb more noise and make the inner boards 16 use for a long time without damage. And the connecting rib is preferably made of rubber, because rubber has a certain elasticity and thus can provide a certain buffer force for the inner plate 16 when the inner plate 16 absorbs vibrations, so as to prevent the inner plate 16 from being damaged. At the same time, the rubber can also The noise is further isolated, so that the noise can be further reduced, the sound quality can be improved, and the user experience can be improved.

In any of the above embodiments, preferably, as shown in Fig. 2 and Fig. 3, the sound-absorbing cover 1 further includes: a mounting ring 18, sleeved and mounted on the open end of the cover body 12, and a plurality of Mounting holes, the sound absorbing cover 1 can be installed on the chassis of the air conditioner through the mounting ring 18.

In these embodiments, multiple mounting holes can be set on the mounting ring 18, and multiple threaded holes can be set on the chassis of the air conditioner, so that the installation between the mounting ring 18 and the chassis can be realized by screws, etc., and then The sound-absorbing cover 1 can be simply and conveniently installed on the chassis, thereby reducing the installation difficulty of the sound-absorbing cover 1 and improving installation efficiency, and the screw fixing can also make the sound-absorbing cover 1 installed more firmly.

Wherein, preferably, the mounting ring 18 and the cover body 12 are integrally structured.

The embodiment of the second aspect of the utility model proposes an air conditioner (not shown in the figure), including a chassis; a compressor assembly, installed on the chassis; at least one muffler cover 1 of any one embodiment of the first aspect, The muffler cover 1 is covered on the compressor assembly and installed on the chassis.

The air conditioner of the embodiment of the utility model has the noise reduction cover 1 provided by any embodiment of the first aspect of the utility model, so the air conditioner has all the beneficial effects of the noise reduction cover 1 provided by any of the above-mentioned embodiments, and it is not mentioned here Let me repeat.

Wherein, preferably, the sound-absorbing cover 1 is fixedly installed on the chassis by screws.

In the description of this manual, the terms "connection", "installation" and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A sound-absorbing cover is used for a compressor assembly of an air conditioner, and the compressor assembly includes a compressor and a piping, wherein the sound-absorbing cover comprises: a cover capable of covering the compressor assembly; connecting ribs arranged on the inner wall of the cover; The inner layer plate is installed in the cover body, on the connecting ribs, and forms at least one closed cavity with the connecting ribs and the cover body, and at least one elongated hole is arranged on the inner layer plate, so that The elongated hole communicates with the closed cavity; Wherein, after the noise generated by the compressor assembly enters the sound-absorbing cover, the air column in the elongated hole can be repeatedly vibrated under the elastic action of the air in the closed cavity. 2. The sound absorbing cover according to claim 1, characterized in that, The width of the elongated hole is greater than or equal to 0.5 mm and less than or equal to 1.5 mm, or the width of the elongated hole is equal to 1 mm; and/or The length of the elongated hole is greater than or equal to 60mm and less than or equal to 100mm. 3. The sound absorbing cover according to claim 1, characterized in that, The thickness of the inner plate is greater than or equal to 0.1 mm and less than or equal to 1 mm; and/or The number of the closed cavity is multiple, the number of the elongated holes is multiple, the elongated holes are arranged along the axial direction of the cover body, or the elongated holes are arranged along the axial direction of the cover The circumferential direction setting of the body; The width of the elongated hole is t, the interval between two adjacent elongated holes in the circumferential direction of the cover is greater than or equal to 15t and less than or equal to 25t, and/or the interval between two adjacent elongated holes is The spacing of the strip holes in the axial direction of the cover body is greater than or equal to 15t and less than or equal to 25t. 4. The sound absorbing cover according to claim 1, characterized in that, The number of the elongated holes is multiple, and the plurality of elongated holes are uniformly and symmetrically arranged on the inner layer plate; and/or There are multiple connecting ribs, and the multiple connecting ribs are evenly spaced on the inner wall of the cover. 5. The sound absorbing cover according to claim 1, characterized in that, The number of the inner layer boards is multiple, the plurality of inner layer boards are connected to form an inner cylinder, the shape of the inner cylinder is consistent with the shape of the cover body, the inner side wall of the inner cylinder and/or the The elongated holes are provided on the inner top wall of the inner cylinder. 6. The sound absorbing cover according to claim 1, characterized in that, The cover body is a hollow elliptical cylinder with one end open. 7. The sound absorbing enclosure of claim 6, wherein: The ratio of the length of the major axis of the elliptical cylinder to the length of the minor axis of the elliptical cylinder is greater than or equal to 1.2 and less than or equal to 1.6; and/or The height of the cover is greater than the height of the compressor assembly, the width of the cover is greater than the width of the compressor assembly, and the length of the cover is greater than the length of the compressor assembly; and/or The height of the cover body is 40%-50% larger than the height of the compressor assembly, the width of the cover body is 20%-30% larger than the width of the compressor assembly, and the length of the cover body is larger than the compressor assembly. The length of the compressor assembly is 30%-50% larger. 8. The sound absorbing enclosure according to any one of claims 1 to 7, characterized in that, The cover body and the connecting rib are of an integrated structure; and/or The cover body is a plastic cover body, the inner layer board is a resin inner layer board or a plastic inner layer board, and the connecting rib is made of rubber. 9. The sound absorbing enclosure according to any one of claims 1 to 7, further comprising: The installation ring is sleeved and installed on the opening end of the cover body, the installation ring is provided with a plurality of installation holes, and the sound-absorbing cover can be installed on the chassis of the air conditioner through the installation ring. 10. An air conditioner, characterized in that it comprises: chassis; a compressor assembly mounted on said chassis; At least one sound-absorbing cover according to any one of claims 1-9, said sound-absorbing cover being arranged on said compressor assembly and mounted on said chassis.