CN210463536U - Silencer and air conditioner - Google Patents

Abstract

The utility model discloses a muffler and air conditioner. The muffler includes: the first silencing cavity, the second silencing cavity and the third silencing cavity are sequentially arranged along the airflow flowing direction, the first silencing cavity is provided with an inlet pipe, and the third silencing cavity is provided with an outlet pipe; the two ends of the first pipeline are respectively communicated with the first silencing cavity and the second silencing cavity; the two ends of the second pipeline are respectively communicated with the second silencing cavity and the third silencing cavity; and one end of the third pipeline is communicated with the first silencing cavity, and the other end of the third pipeline is communicated with the third silencing cavity. The utility model discloses a silencer falls into two air flows through making the air current that has sound in first amortization intracavity, and two air flows are handled the noise through the amortization on two kinds of different routes respectively, utilize the different principle of the treatment effect of this kind of different routes to sound different wave bands to handle the noise, make the sound of wave band difference offset each other simultaneously, further improve the noise cancelling effect.

Description

Silencer and air conditioner

Technical Field

The utility model belongs to the technical field of the amortization and specifically relates to a muffler and have its air conditioner is related to.

Background

At present, silencers are all silenced through an expansion chamber, the silencing effect depends on the length of the silencer and the size of the expansion ratio, when the frequency band needing silencing is lower, the length of the silencer is required to be longer, and when the silencing volume is larger, the required expansion ratio is larger, so that the volume of the silencer is increased, and the expansion ratio is a main factor influencing the price of the silencer, so that the price of the silencer is overhigh.

In addition, the silencer installed in the pipeline of the air conditioner needs to have good silencing effect and simultaneously ensures that the volume of the silencer is reduced as much as possible, so that the trend of miniaturization of the existing air conditioner products can be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides a silencer to make the silencer have better noise cancelling effect.

The utility model discloses still provide an air conditioner that has above-mentioned muffler.

According to the utility model discloses muffler, include: the first silencing cavity, the second silencing cavity and the third silencing cavity are sequentially arranged along the airflow flowing direction, the first silencing cavity is provided with an inlet pipe, and the third silencing cavity is provided with an outlet pipe; the two ends of the first pipeline are respectively communicated with the first silencing cavity and the second silencing cavity; the two ends of the second pipeline are respectively communicated with the second silencing cavity and the third silencing cavity; and one end of the third pipeline is communicated with the first silencing cavity, and the other end of the third pipeline penetrates through the second silencing cavity and then is communicated with the third silencing cavity.

According to the utility model discloses the muffler, through making the air current that has sound divide into two air currents in first amortization intracavity, two air currents are respectively through the amortization processing on two kinds of different routes, and because different routes are different to the treatment effect on sound different wave bands, utilize the different principle of treatment effect difference of this kind of different routes to sound different wave bands to handle the noise, make the sound of wave band difference offset each other simultaneously, further improve the noise cancelling effect, make muffler compact structure, small, and can improve the bandwidth of amortization frequency band by a wide margin.

In some embodiments of the present invention, the first pipe and the second pipe are distributed on both radial sides of the third pipe.

In some embodiments of the present invention, the center line of the first pipeline is spaced apart from the center line of the inlet pipe.

In some embodiments of the present invention, the center line of the second pipeline and the center line of the outlet pipe are spaced apart.

In some embodiments of the present invention, the center line of the third pipeline is spaced apart from the center line of the inlet pipe and the center line of the outlet pipe, respectively.

In some embodiments of the invention, the third conduit is formed as a straight tube.

In some embodiments of the present invention, the inner diameter of the first pipe is larger than the inner diameter of the third pipe, and the inner diameter of the second pipe is larger than the inner diameter of the third pipe.

In some embodiments of the present invention, the inner diameter of the first conduit and the inner diameter of the second conduit are the same.

In some embodiments of the present invention, the muffler further comprises a housing, wherein at least two partition plates are provided in the housing to separate at least three muffling chambers, at least three the muffling chambers include the first muffling chamber to the third muffling chamber.

According to the utility model discloses the air conditioner, include the above-mentioned embodiment of the utility model the muffler.

According to the utility model discloses the air conditioner, through making the air current that has sound divide into two air currents in first amortization intracavity, two air currents are respectively through the amortization processing on two kinds of different routes, and because different routes are different to the treatment effect on sound different wave bands, utilize the different principle of treatment effect difference of this kind of different routes to sound different wave bands to handle the noise, make the sound of wave band difference offset each other simultaneously, further improve the noise cancelling effect, make muffler compact structure, small, and can improve the bandwidth of amortization frequency band by a wide margin.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a muffler according to an embodiment of the present invention;

fig. 2 is a comparison diagram of the silencing effect of the silencer according to the embodiment of the present invention and the silencer in the prior art.

Reference numerals:

100. a muffler; 101. a housing;

1. a first muffling chamber;

2. a second muffling chamber;

3. a third sound-deadening chamber;

4. feeding a pipe;

5. discharging a pipe;

6. a first conduit;

7. a second conduit;

8. a third conduit.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.

A muffler 100 according to an embodiment of the present invention is described below with reference to fig. 1 and 2, wherein the muffler 100 may be applied to any device requiring muffling, such as an air conditioner.

According to the utility model discloses muffler 100, including first amortization chamber 1, second amortization chamber 2, third amortization chamber 3, first pipeline, second pipeline and third pipeline 8, first amortization chamber 1, second amortization chamber 2 and third amortization chamber 3 are arranged along the air current direction of flow in proper order, and first amortization chamber 1 is equipped with into pipe 4, and third amortization chamber 3 has exit tube 5, and the both ends of first pipeline 6 communicate with first amortization chamber 1 and second amortization chamber 2 respectively. Both ends of the second pipe 7 are respectively communicated with the second silencing cavity 2 and the third silencing cavity 3. One end of the third pipeline 8 is communicated with the first silencing cavity 1, and the other end of the third pipeline 8 passes through the second silencing cavity 2 and then is communicated with the third silencing cavity 3. The first sound-deadening chamber 1, the second sound-deadening chamber 2, and the third sound-deadening chamber 3 cancel noise by utilizing the sound-deadening property of the extension chamber muffler 100.

Specifically, the silencer 100 comprises a first silencing cavity 1, a second silencing cavity 2 and a third silencing cavity 3 which are sequentially arranged along the airflow flowing direction, wherein the first silencing cavity 1 is communicated with an inlet pipe 4, the third silencing cavity 3 is communicated with an outlet pipe 5, the first silencing cavity 1 is communicated with the second silencing cavity 2 through a first pipeline 6, the second silencing cavity 2 is communicated with the third silencing cavity 3 through a second pipeline 7, the first silencing cavity 1 is communicated with the third silencing cavity 3 through a third pipeline 8, and airflow with sound is divided into two airflows after entering the first silencing cavity 1 from the inlet pipe 4;

wherein a gas flow directly flows into third amortization chamber 3 behind third pipeline 8, and another gas flow gets into second amortization chamber 2 through first pipeline 6 earlier and carries out the amortization back, and rethread second pipeline 7 gets into third amortization chamber 3, that is to say, and the gas flow that carries out after the first amortization in entering into first amortization chamber 1 from advancing pipe 4 has two kinds of amortization routes: one is directly discharged into the third silencing cavity 3 for third silencing after second refraction silencing through the third pipeline 8, and the other is discharged into the second silencing cavity 2 for second silencing through the first pipeline 6, and then the airflow in the second silencing cavity 2 is discharged into the third silencing cavity 3 for third silencing through the second pipeline 7.

In short, the two air flows exhausted from the first muffling chamber 1 are respectively treated and muffled through two different paths, and because the different paths have different treatment effects on different sound wave bands, the remaining sound wave bands after treatment through the two paths are different, and the different sounds in the two sound wave bands are mutually offset in the third muffling chamber 3, so that the sounds are further eliminated, and the eliminated sounds are exhausted from the outlet pipe 5.

Therefore, the utility model discloses a silencer 100 make full use of interferes the principle and reaches the noise of eliminating some specific frequency channel, and can improve the bandwidth of amortization frequency band by a wide margin, under the condition that does not change the volume to play better noise cancelling effect, make silencer 100 have compact structure, advantages such as small.

As shown in fig. 2, the transmission loss of the two silencers with the same expansion ratio and expansion length in the frequency band of 0 to 2000Hz is compared, except that the transmission loss below 500Hz is reduced, the silencing volume of the silencer 100 of the present application in the other frequency bands is greatly increased, and the range of the frequency band where the optimal silencing frequency band is located can be further adjusted by adjusting the length ratio of the three expansion chambers. Therefore, the muffler 100 of the present application has a better muffling effect than the conventional muffler.

It should be noted that the number of the silencing chambers can be increased according to actual situations, as long as a plurality of silencing paths are ensured between three or more adjacent silencing chambers.

For example, in some embodiments of the present invention, the silencer 100 includes a first silencing chamber 1, a second silencing chamber 2, a third silencing chamber 3 and a fourth silencing chamber arranged in sequence along the airflow flowing direction, an outlet pipe of the third silencing chamber is communicated with the fourth silencing chamber, the first silencing chamber 1 is communicated with the second silencing chamber 2 through a first pipeline 6, the second silencing chamber 2 is communicated with the third silencing chamber 3 through a second pipeline 7, a third pipeline 8 is communicated with the first silencing chamber 1 and the third silencing chamber 3, the first silencing chamber 1 is communicated with the fourth silencing chamber through a fourth pipeline, and after the airflow with sound enters the first silencing chamber 1 from the inlet pipe 4, the airflow with sound is divided into three airflows;

first share air current is direct from flowing into fourth amortization chamber after through the fourth pipeline, the second share air current gets into second amortization chamber 2 through first pipeline 6 earlier and carries out the amortization back, rethread second pipeline 7 gets into third amortization chamber 3, and finally, get into fourth amortization chamber through third pipeline 8, third share air current gets into in third amortization chamber 3 through third pipeline 8, then get into the fourth amortization intracavity through third pipeline 8, make three shares air current respectively through the amortization of three kinds of different routes and handle, the sound that the sound wave band is different can offset each other in fourth amortization chamber, thereby further eliminate sound.

Of course, in some other embodiments of the present invention, the number of the silencing cavities sequentially arranged in the air flow direction in the silencer 100 may also be more, and the number of the specific silencing cavities may be set according to actual needs, which is not limited herein. In addition, the airflow with sound can enter the downstream-most silencing cavity through three, four or more paths to offset the noise, so as to achieve a better silencing effect, and the specific number of paths can be set according to actual needs, without limitation.

According to the utility model discloses muffler 100 utilizes the different principle of the treatment effect of different wave bands of sound to handle the noise in different routes, makes the sound that the wave band is different offset each other simultaneously, further improves the noise cancelling effect for muffler 100 compact structure, small, advantage such as the volume of eliminating noise is big, and can improve the bandwidth of amortization frequency band by a wide margin.

As shown in fig. 1, in some embodiments of the present invention, the first duct 6 and the second duct 7 are distributed on both radial sides of the third duct 8. That is, the first pipe 6 and the second pipe 7 are respectively located at both sides of the third pipe 8 in the radial direction, so that the distance that the airflow with sound needs to flow after entering the second silencing chamber 2 through the first pipe 6 is longer, thereby achieving better silencing effect.

As shown in fig. 1, in some embodiments of the present invention, the centerline of the first conduit 6 is spaced from the centerline of the intake pipe 4. Specifically, the central line of the first pipeline 6 and the central line of the inlet pipe 4 are not on the same straight line, so that the air flow with sound entering the first silencing cavity 1 from the inlet pipe 4 can firstly enter the first pipeline 6 after being silenced in the first silencing cavity 1, the air flow entering the first silencing cavity 1 from the inlet pipe 4 is prevented from directly flowing into the second silencing cavity 2 from the first pipeline 6, and the silencing effect of the first silencing cavity 1 is ensured.

As shown in fig. 1, in some embodiments of the present invention, the centerline of the second pipe 7 is spaced apart from the centerline of the outlet pipe 5. Specifically, the center line of the second pipe 7 and the center line of the outlet pipe 5 are not on the same straight line, so that the air flow with sound flowing out of the second pipe 7 enters the outlet pipe 5 after being subjected to silencing treatment in the third silencing cavity 3, the air flow entering the third silencing cavity 3 from the second pipe 7 is prevented from directly flowing out of the outlet pipe 5, and the silencing effect of the third silencing cavity 3 is ensured.

As shown in fig. 1, in some embodiments of the present invention, the center line of the third pipeline 8 is spaced from the center line of the inlet pipe 4 and the center line of the outlet pipe 5, respectively. That is, the center line of the third duct 8 is not on the same straight line as the center line of the inlet pipe 4 and the center line of the outlet pipe 5, and since the center line of the third duct 8 is not on the same straight line as the center line of the inlet pipe 4, the air flow with sound entering the first muffling chamber 1 from the inlet pipe 4 can enter the third duct 8 after muffling in the first muffling chamber 1, so that the first muffling chamber 1 can firstly perform a first muffling process on the noise and then flow into the third muffling chamber 3 through the third duct 8, and since the center line of the third duct 8 is not on the same straight line as the center line of the outlet pipe 5, the air flow with sound flowing out from the third duct 8 enters the outlet pipe 5 after a first muffling process in the third muffling chamber 3, so that the air flow with sound sequentially passes through the first muffling chamber 1, the third duct 8 and the third muffling chamber 3 and then flows out from the outlet pipe 5 for muffling, thereby improving the sound deadening effect of the muffler 100.

As shown in fig. 1, in some embodiments of the present invention, the third conduit 8 is formed as a straight tube. That is to say, the third pipeline 8 is the straight tube to the production and processing of third pipeline 8 is convenient for, of course in some other embodiments of the utility model, the third pipeline 8 also can be the return bend or the pipe of buckling, can set up according to the actual need on site, does not do the restriction here.

As shown in fig. 1, in some embodiments of the present invention, the inner diameter of the first pipe 6 is larger than the inner diameter of the third pipe 8, and the inner diameter of the second pipe 7 is larger than the inner diameter of the third pipe 8. That is to say, the internal diameter of first pipeline 6 and the internal diameter of second pipeline 7 all are greater than the internal diameter of third pipeline 8, because different pipe diameters can carry out the amortization to the different wave bands of sound, consequently can produce the amortization effect of different wave bands to the sound through in first pipeline 6, second pipeline 7 and the third pipeline 8 respectively through the setting of different pipe diameters.

In some embodiments of the present invention, the inner diameter of the first pipe 6 is smaller than the inner diameter of the third pipe 8, and the inner diameter of the second pipe 7 is smaller than the inner diameter of the third pipe 8. That is to say, the internal diameter of first pipeline 6 and the internal diameter of second pipeline 7 all are less than the internal diameter of third pipeline 8, because different pipe diameters can carry out the amortization to the different wave bands of sound, consequently can produce the amortization effect of different wave bands to the sound through in first pipeline 6, second pipeline 7 and the third pipeline 8 respectively through the setting of different pipe diameters.

As shown in fig. 1, in some embodiments of the present invention, the inner diameter of the first conduit 6 and the inner diameter of the second conduit 7 are the same. That is, the inner diameter of the first pipe 6 and the inner diameter of the second pipe 7 are the same to facilitate the manufacturing process of the muffler 100.

As shown in fig. 1, in some embodiments of the present invention, the muffler 100 further includes a housing 101, at least two partition plates are disposed in the housing 101 to separate at least three muffling chambers, and the at least three muffling chambers include a first muffling chamber 1 to a third muffling chamber 3. That is, two partition plates are provided at intervals in the housing 101 so that three muffling chambers are formed in the housing 101 to facilitate the production process of the muffler 100.

In addition, in some embodiments of the present invention, the occupation ratio of each muffling cavity in the casing 101 can be adjusted according to actual needs, so that each muffling cavity can perform muffling processing of different degrees to different wave bands of sound, so that the muffler 100 has better muffling effect.

In some embodiments of the present invention, the silencer 100 includes three casings 101, and a silencing chamber is disposed in each casing 101, and each casing 101 is connected in sequence to form the silencer 100, so that the field construction is more convenient by the spliced structure.

According to the utility model discloses the air conditioner, include the muffler 100 of the above-mentioned embodiment of the utility model.

According to the utility model discloses the air conditioner utilizes the different principle of different routes to the treatment effect of sound different wave bands to handle the noise, makes the sound that the wave band is different offset each other simultaneously, further improves the noise cancelling effect for muffler 100 compact structure, small to can improve the bandwidth of amortization frequency band by a wide margin.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A muffler, comprising:

the first silencing cavity, the second silencing cavity and the third silencing cavity are sequentially arranged along the airflow flowing direction, the first silencing cavity is provided with an inlet pipe, and the third silencing cavity is provided with an outlet pipe;

the two ends of the first pipeline are respectively communicated with the first silencing cavity and the second silencing cavity;

the two ends of the second pipeline are respectively communicated with the second silencing cavity and the third silencing cavity;

and one end of the third pipeline is communicated with the first silencing cavity, and the other end of the third pipeline penetrates through the second silencing cavity and then is communicated with the third silencing cavity.

2. The muffler of claim 1 wherein the first pipe and the second pipe are distributed on radial sides of the third pipe.

3. The muffler of claim 1, wherein a centerline of the first pipe is spaced from a centerline of the inlet pipe.

4. The muffler of claim 1, wherein a centerline of the second pipe is spaced apart from a centerline of the outlet pipe.

5. The muffler of claim 1, wherein a centerline of the third pipe is spaced apart from a centerline of the inlet pipe and a centerline of the outlet pipe, respectively.

6. The muffler of claim 1, wherein the third pipe is formed as a straight pipe.

7. The muffler of claim 1 wherein the first pipe has an inner diameter greater than an inner diameter of the third pipe and the second pipe has an inner diameter greater than an inner diameter of the third pipe.

8. The muffler of claim 1, wherein an inner diameter of the first pipe and an inner diameter of the second pipe are the same.

9. The muffler of any one of claims 1-8, further comprising a housing having at least two baffles disposed therein to separate at least three muffling chambers, the at least three muffling chambers including the first to third muffling chambers.

10. An air conditioner characterized by comprising the muffler according to any one of claims 1 to 9.

Images