CN210921758U

CN210921758U - Air conditioner silencer

Info

Publication number: CN210921758U
Application number: CN201921691578.0U
Authority: CN
Inventors: 吕名群; 罗晓玲; 蔡雄
Original assignee: Changsha Weichuang Environmental Engineering Equipment Co ltd
Current assignee: Changsha Weichuang Environmental Engineering Equipment Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-07-03
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses an air conditioner silencer, which comprises a first-stage silencing pipe and a second-stage silencing pipe, wherein the first-stage silencing pipe and the second-stage silencing pipe are connected in series; the primary silencing pipe comprises a silencing outer pipe and a silencing inner pipe, one end of the silencing inner pipe is an air inlet end, the other end of the silencing inner pipe is an air outlet end, the air inlet end is communicated with an air outlet pipeline of the air conditioner, the silencing inner pipe is arranged in the silencing outer pipe, a silencing cavity is defined between the outer wall of the silencing inner pipe and the inner wall of the silencing outer pipe, and the silencing inner pipe is provided with an air vent communicated with the silencing cavity; the air inlet end of the second-stage silencing pipe is communicated with the air outlet end of the silencing inner pipe, two baffles are obliquely arranged in the second-stage silencing pipe, one end of each baffle is connected with the inner wall of the second-stage silencing pipe, a certain gap is kept between the other end of each baffle and the inner wall of the second-stage silencing pipe, the two baffles separate the pipeline of the second-stage silencing pipe into an S-shaped loop, and a sound absorbing material layer is filled between the two baffles. Noise of different frequency bands can be reduced through two-stage noise reduction.

Description

Air conditioner silencer

Technical Field

The utility model relates to a technical field of making an uproar falls in the amortization especially relates to an air conditioner muffler.

Background

At present, an air conditioner is a common household appliance in daily life, a refrigerant flows in a refrigeration loop in the operation process of the air conditioner, due to the fact that a pipeline in the refrigeration loop is bent more and the air flow speed in the pipeline is higher, noise with various frequencies can be generated in the pipeline generally, and the comfort of a user can be directly influenced by the noise degree of the air conditioner in the operation process. In the prior art, a single-stage expansion silencer is usually connected in a refrigeration circuit to reduce noise. However, the biggest disadvantage of the single-stage expanding silencer is that some sound waves pass through the silencer without attenuation, resulting in poor silencing effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air conditioner muffler can realize multistage amortization, improves the noise reduction of air conditioner.

The technical scheme adopted by the utility model is that the air conditioner silencer comprises a first-stage silencing pipe and a second-stage silencing pipe, wherein the first-stage silencing pipe and the second-stage silencing pipe are arranged in series;

the primary silencing pipe comprises a silencing outer pipe and a silencing inner pipe, one end of the silencing inner pipe is an air inlet end, the other end of the silencing inner pipe is an air outlet end, the air inlet end is communicated with an air outlet pipeline of an air conditioner, the silencing inner pipe is arranged in the silencing outer pipe, a silencing cavity is arranged between the outer wall of the silencing inner pipe and the inner wall of the silencing outer pipe in a surrounding mode, and air holes communicated with the silencing cavity are formed in the silencing inner pipe;

the air inlet end of the second-stage silencing pipe is communicated with the air outlet end of the silencing inner pipe, two baffles are obliquely arranged in the second-stage silencing pipe, one end of each baffle is connected with the inner wall of the second-stage silencing pipe, a certain gap is kept between the other end of each baffle and the inner wall of the second-stage silencing pipe, the two baffles divide the pipeline of the second-stage silencing pipe into an S-shaped loop, and a sound absorbing material layer is filled between the two baffles.

Further preferably, the outlet end of the silencing outer pipe corresponding to the silencing inner pipe is provided with a bearing sleeve, and the outlet end of the silencing inner pipe is inserted in the bearing sleeve.

Further optimize, the inlet end of amortization inner tube is equipped with the cassette, the cassette includes chassis and elasticity buckle, elasticity buckle sets up in the chassis outer fringe, and extends the setting towards the end direction of giving vent to anger of amortization inner tube, be equipped with the draw-in groove that matches with elasticity buckle on the inside pipe wall of amortization outer tube.

Further optimize, the air vent is inclined from the air inlet end to the air outlet end of the silencing inner pipe.

Further optimize, be equipped with the interval on the inner wall of amortization outer tube and evenly be equipped with a plurality of semicircle archs.

And the air outlet end of the silencing outer pipe is inserted into the air inlet end of the second-stage silencing pipe, and the air outlet of the silencing outer pipe is in a flaring shape and is connected with the air inlet arc of the second-stage silencing pipe.

Further optimize, the outside cladding of being connected of amortization outer tube and second grade amortization pipe has the deadening felt.

The utility model has the advantages that: the utility model discloses an air conditioner muffler has two-stage amortization pipeline, and the air current of the blast pipe of air conditioner flows through the first-stage hush pipe at first, and the velocity of flow and the energy of sound wave of air current can be effectively reduced to the first-stage hush pipe, and the noise reduction effect to the noise of high frequency is obvious, and the air current that flows through in the second-stage hush pipe when passing through the sound absorbing material layer can the noise in the effectual absorption air current, especially more effective to the elimination of low frequency noise, and this application is obviously superior to traditional single-stage muffler; the first-stage silencing pipe and the second-stage silencing pipe are independently designed, and the manufacturing difficulty and the production cost are reduced.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of an air conditioner silencer according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a primary silencer according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a second-stage silencer according to an embodiment of the present invention.

Detailed Description

The air conditioner silencer of the embodiment shown in fig. 1 to 3 includes a primary silencer duct 100 and a secondary silencer duct 200, the primary silencer duct 100 and the secondary silencer duct 200 being arranged in series;

the primary silencing pipe 100 comprises an outer silencing pipe 110 and an inner silencing pipe 120, one end of the inner silencing pipe 120 is an air inlet end, the other end of the inner silencing pipe 120 is an air outlet end, the air inlet end is communicated with an air outlet pipeline of an air conditioner, the inner silencing pipe 120 is arranged in the outer silencing pipe 110, a silencing cavity 300 is arranged between the outer wall of the inner silencing pipe 120 and the inner wall of the outer silencing pipe 110 in a surrounding mode, and the inner silencing pipe 120 is provided with a vent hole 121 communicated with the silencing cavity 300;

the air inlet end of the second-stage silencing pipe 200 is communicated with the air outlet end of the silencing inner pipe 120, two baffles 400 are obliquely arranged in the second-stage silencing pipe 200, one end of each baffle 400 is connected with the inner wall of the second-stage silencing pipe 200, a certain gap is kept between the other end of each baffle 400 and the inner wall of the second-stage silencing pipe 200, the two baffles 400 divide the pipeline of the second-stage silencing pipe 200 into an S-shaped loop, and a sound absorbing material layer 500 is filled between the two baffles 400.

The utility model provides an air conditioner muffler is established ties by one-level hush pipe 100 and second grade hush pipe 200 and sets up, the air current that contains the noise flows into one-level hush pipe 100 earlier, when flowing through amortization inner tube 120, have a part air current can be by in air vent 121 amortization chamber 300, get into hush chamber 300 back, continuous reflection in the cavity of hush chamber 300, return back again at last in amortization inner tube 120, the continuous quilt of energy is consumed, the velocity of flow of gas has been reduced simultaneously, thereby reach the mesh of noise reduction. The primary silencer duct 100 is primarily directed to mid-to high-frequency noise.

After flowing out of the primary silencing pipe 100, the airflow enters the secondary silencing pipe 200, and the pipeline of the secondary silencing pipe 200 is divided into an S-shaped loop through the two baffles 400, so that the traveling path of the airflow is prolonged, and the consumption path of noise in the secondary silencing pipe 200 is increased. Meanwhile, when the air flow flows through the sound-absorbing material layer 500, the energy of noise is further absorbed, the flow rate of the air flow is reduced, the friction on the pipeline is reduced, the generation of new noise is reduced, and the purpose of noise reduction is achieved. The secondary muffler pipe 200 mainly reduces noise for low frequency noise.

This application is fallen through the two-stage and is fallen the noise, realizes falling the noise of the sound wave of different frequency channels, has improved and is the noise reduction effect of muffler, and one-level hush pipe 100 and second grade hush pipe 200 adopt independent design simultaneously, have reduced the production degree of difficulty to manufacturing cost has been reduced.

As shown in fig. 2, a clamping seat 600 is disposed at an air inlet end of the silencing inner tube 120, the clamping seat 600 includes a base plate 610 and an elastic buckle 620, the elastic buckle 620 is disposed at an outer edge of the base plate 610 and extends toward an air outlet end of the silencing inner tube 120, and a clamping groove matched with the elastic buckle 620 is disposed on an inner wall of the silencing outer tube 110.

When the first-stage silencing pipe 100 is assembled, the first-stage silencing pipe 100 is inserted into the silencing outer pipe 110 from the air inlet end of the silencing outer pipe 110, the air inlet end of the silencing outer pipe 110 is sealed by the base plate 610, and the base plate 610 is matched with the shape of the silencing outer pipe 110, so that the aim of sealing is fulfilled. When the first-level silencing pipe 100 is inserted, the elastic buckle 620 is clamped with the clamping groove, so that the silencing inner pipe 120 and the silencing outer pipe 110 are connected into a whole.

Further, a socket 112 is disposed at the outlet end of the silencing outer tube 110 corresponding to the silencing inner tube 120, and the outlet end of the silencing inner tube 120 is inserted into the socket 112. Through set up the socket 112 at the exit end of amortization outer tube 110, when amortization outer tube 110 was being inserted to amortization inner tube 120, the exit end of amortization inner tube 120 just in time inserted in socket 112, can realize the effect of location, the condition of off normal appears in the exit end of avoiding amortization inner tube 120 for amortization inner tube 120 is more stable even as an organic whole with amortization outer tube 110.

Further, the vent holes 121 are disposed obliquely from the air inlet end to the air outlet end of the silencing inner tube 120. The vent holes 121 are obliquely arranged, so that gas can more easily enter the silencing chamber 300 from the vent holes 121 when the silencing inner pipe 120 flows. Meanwhile, when the airflow returns to the silencing inner tube 120 through the vent hole 121 from the silencing cavity 300, the direction of the outgoing airflow is opposite to that of the airflow in the silencing inner tube 120, so that the airflow speed can be reduced, and the noise can be further reduced.

Further, a plurality of spherical protrusions 111 are uniformly arranged on the inner wall of the silencing outer tube 110 at intervals. By arranging the spherical protrusions 111 on the inner wall of the silencing outer tube 110, the diffuse reflection effect can be increased, the reflection effect is improved, and the noise reduction effect is increased.

The air outlet end of the silencing outer tube 110 is inserted into the air inlet end of the secondary silencing tube 200, the air outlet of the silencing outer tube 110 is flared, the flaring design is adopted for the air outlet of the silencing outer tube 110, and airflow enters a large aperture from a small aperture, so that the flow rate of the gas can be reduced. The outlet of the silencing outer tube 110 is connected with the air inlet of the second-stage silencing tube 200 in an arc shape, so that air flow smoothly enters the second-stage silencing tube 200, and friction noise is effectively reduced.

The pipe wall thickness of the joint of the sound attenuation outer pipe 110 and the second-stage sound attenuation pipe 200 is obviously reduced, noise easily appears in the air flow in the connection transition area, and the sound insulation felt 700 is coated outside the joint of the sound attenuation outer pipe 110 and the second-stage sound attenuation pipe 200. The condition that obvious noise leaks can effectively be avoided appearing in this junction.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. An air conditioner silencer, its characterized in that: the silencer comprises a primary silencing pipe (100) and a secondary silencing pipe (200), wherein the primary silencing pipe (100) and the secondary silencing pipe (200) are arranged in series;

the primary silencing pipe (100) comprises a silencing outer pipe (110) and a silencing inner pipe (120), one end of the silencing inner pipe (120) is an air inlet end, the other end of the silencing inner pipe is an air outlet end, the air inlet end is communicated with an air outlet pipeline of an air conditioner, the silencing inner pipe (120) is arranged in the silencing outer pipe (110), a silencing cavity (300) is enclosed between the outer wall of the silencing inner pipe (120) and the inner wall of the silencing outer pipe (110), and a vent hole (121) communicated with the silencing cavity (300) is formed in the silencing inner pipe (120);

the air inlet end of the secondary silencing pipe (200) is communicated with the air outlet end of the silencing inner pipe (120), two baffles (400) are obliquely arranged in the secondary silencing pipe (200), one end of each baffle (400) is connected with the inner wall of the pipe body of the secondary silencing pipe (200), a certain gap is kept between the other end of each baffle and the inner wall of the pipe body of the secondary silencing pipe (200), the two baffles (400) separate the pipeline of the secondary silencing pipe (200) into an S-shaped loop, and a sound absorbing material layer (500) is filled between the two baffles (400).

2. An air conditioner silencer according to claim 1, wherein: the inlet end of amortization inner tube (120) is equipped with cassette (600), cassette (600) are including chassis (610) and elasticity buckle (620), elasticity buckle (620) set up in chassis (610) outer fringe, and extend the setting towards the end direction of giving vent to anger of amortization inner tube (120), be equipped with the draw-in groove that matches with elasticity buckle (620) on the inside pipe wall of amortization outer tube (110).

3. An air conditioner silencer according to claim 2, wherein: the sound attenuation outer pipe (110) is provided with a bearing sleeve (112) corresponding to the outlet end of the sound attenuation inner pipe (120), and the outlet end of the sound attenuation inner pipe (120) is inserted in the bearing sleeve (112).

4. An air conditioner silencer according to any one of claims 1 to 3, wherein: the vent holes (121) are obliquely arranged from the air inlet end to the air outlet end of the silencing inner pipe (120).

5. An air conditioner silencer according to any one of claims 1 to 3, wherein: the inner wall of the silencing outer pipe (110) is provided with a plurality of spherical protrusions (111) at intervals.

6. An air conditioner silencer according to any one of claims 1 to 3, wherein: the air outlet end of the silencing outer pipe (110) is inserted into the air inlet end of the secondary silencing pipe (200), the air outlet of the silencing outer pipe (110) is flared, and is connected with the air inlet of the secondary silencing pipe (200) in an arc shape.

7. An air conditioner silencer according to claim 6, wherein: and the outside of the connection part of the silencing outer pipe (110) and the secondary silencing pipe (200) is coated with a sound-proof felt (700).