CN210949038U - Silencer, compressor and air conditioning system - Google Patents

Abstract

The utility model provides a muffler, compressor and air conditioning system, the muffler includes: silencer casing and damping layer, the silencer casing is including having the amortization chamber, the damping layer sets up on the inner wall in amortization chamber and/or on the surface of silencer casing, promptly, the damping layer can set up on the inner wall in amortization chamber, the air current flows into like this the amortization chamber is impacted before the inner wall in amortization chamber, the damping layer can absorb partial energy in advance, not only can reach the effect of making an uproar falls in the damping, can also prevent that the air current from directly impacting the inner wall in amortization chamber, thereby improve the intensity of muffler. Or the damping layer is arranged on the outer surface of the silencer shell, so that after airflow flows into the silencing cavity, the damping layer can absorb partial energy to achieve the effects of vibration reduction and noise reduction. Or on the inner wall of the sound attenuation cavity and the outer surface of the silencer shell, the effects of vibration attenuation and noise reduction are better.

Description

Silencer, compressor and air conditioning system

Technical Field

The utility model relates to a compressor technical field, in particular to muffler, compressor and air conditioning system.

Background

An air conditioner is a short term for an air conditioner, and the air conditioner is equipment for processing the temperature, the humidity, the purity, the airflow speed and the like of air so as to meet the production and living needs of people. Specifically, the air conditioner has the function of adjusting parameters such as temperature, humidity, cleanliness, air flow rate and the like of air in a room so as to meet the requirements of human comfort or technological processes.

After the air conditioner is powered on, low-pressure steam of a refrigerant in the refrigeration system is sucked by the compressor and compressed into high-pressure steam and then discharged to the condenser, outdoor air sucked by the axial flow fan flows through the condenser to take away heat emitted by the refrigerant, the high-pressure refrigerant steam is condensed into high-pressure liquid, the high-pressure liquid is sprayed into the evaporator after passing through the filter and the throttling mechanism and is evaporated under corresponding low pressure to absorb surrounding heat, meanwhile, the cross flow fan enables the air to continuously enter fins of the evaporator for heat exchange, and the air which is cooled after heat release is sent to the indoor, so that the indoor air continuously circulates and flows, and the purpose of reducing the temperature is achieved.

The outdoor unit of the air conditioner is internally provided with a compressor which compresses a refrigerant in the air conditioner. The compressor assembly can produce the vibration at the working process, and this vibration can be transmitted to piping assembly and the sheet metal component be connected with the compressor assembly on through compressor assembly's casing, and then arouses moving of whole piping assembly and sheet metal component, consequently can produce great work noise. In the existing compressor assembly, a built-in silencer plays a key role in vibration and noise reduction of the compressor. Most of the existing built-in silencers are formed by stamping low-carbon steel plates, but the low-carbon steel plates have low damping characteristics, the existing built-in silencers mainly rely on optimizing the structure of the silencer to eliminate sound, and the sound eliminated by the materials of the built-in silencers is very limited. Along with the development of scientific technology and the improvement of national living standard, the requirement of people on the comfort of living environment is gradually improved, the requirements on low-noise and high-comfort air conditioners during process production are higher and higher, and the requirements on the noise of air compressors are stricter and stricter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a muffler, compressor and air conditioning system to improve the effect of making an uproar falls in the damping of muffler.

The utility model provides a silencer, include: a muffler, comprising:

a muffler housing having a muffler chamber; and the combination of (a) and (b),

a damping layer disposed on an inner wall of the sound-deadening chamber and/or an outer surface of the muffler shell.

Optionally, in the muffler, a thickness of the damping layer is not less than 0.1 mm.

Optionally, in the muffler, the damping layer is disposed on an inner wall of the muffling cavity, the damping layer is provided with a plurality of damping holes, and the damping layer is made of a damping alloy material.

Optionally, in the muffler, the damping layer sets up the surface of muffler casing, the damping layer is the damping shell, the damping shell can closely laminate on the surface of muffler casing, the damping shell adopts damping alloy material to make.

Optionally, in the muffler, a thickness of the damping housing is not less than 0.1 mm.

Optionally, in the muffler, a specific damping value of the damping layer is not less than 0.1.

Optionally, in the muffler, the damping layer is adhered to the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell; alternatively, the damping layer is welded to the inner wall of the sound-deadening chamber and/or to the outer surface of the muffler shell.

Optionally, in the muffler, a protruding portion is disposed at an edge of the damping layer, a clamping groove is disposed at an inner wall of the muffling cavity and/or an outer surface edge of the muffler shell, and the protruding portion is clamped in the clamping groove.

On the other hand, the utility model provides a compressor, the foretell muffler of compressor.

In another aspect, the present invention further provides an air conditioning system, which includes the above compressor.

Compared with the prior art, the utility model provides a muffler through set up the damping layer on the surface at the inner wall in amortization chamber and/or muffler casing, the air current flows in like this behind the amortization chamber, the damping layer can absorb partial energy to reach the effect of making an uproar falls in the damping. Furthermore, the damping layer sets up on the inner wall in amortization chamber, or simultaneously when the inner wall in amortization chamber and/or when setting up the damping layer on the surface of muffler casing, like this the air current flows in the amortization chamber and assault before the inner wall in amortization chamber, partial energy can be absorbed in advance to the damping layer, not only can reach the effect of damping and noise reduction, can also prevent that the air current from directly assaulting the inner wall in amortization chamber to improve the intensity of muffler.

Drawings

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

fig. 2 is a schematic structural diagram of a muffler shell according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a damping layer disposed on an inner wall of a muffling cavity according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a side wall damping layer provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a top surface damping layer provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a damping housing according to an embodiment of the present invention.

Wherein the reference numerals of figures 1-6 are as follows:

10-a muffler shell; 11-a sound-deadening chamber; 20-a damping layer; 21-side wall damping layer; 22-top surface damping layer; 23-damping housing.

Detailed Description

To further clarify the objects, advantages and features of the present invention, a silencer, a compressor and an air conditioning system according to embodiments of the present invention will be described in detail with reference to the accompanying drawings 1-6. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Referring to fig. 1, the present embodiment provides a muffler including: a silencer casing 10 and a damping layer 20, the silencer casing 10 having a sound-deadening chamber 11, the damping layer 20 being provided on the inner wall of the sound-deadening chamber and/or on the outer surface of the silencer casing. That is, the damping layer 20 may be disposed on the inner wall of the muffling chamber, so that before the air flow flows into the muffling chamber 11 and impacts the inner wall of the muffling chamber, the damping layer 20 can absorb part of the energy in advance, thereby achieving the effect of vibration and noise reduction, and preventing the air flow from directly impacting the inner wall of the muffling chamber, so as to improve the strength of the muffler. Or, the damping layer 20 is disposed on the outer surface of the muffler shell, so that after the airflow flows into the sound-absorbing cavity 11, the damping layer can absorb part of the energy, so as to achieve the effects of vibration and noise reduction. Or on the inner wall of the sound attenuation cavity and the outer surface of the silencer shell, the effects of vibration attenuation and noise reduction are better.

By arranging the damping layer 20 on the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, the damping layer 20 can absorb part of energy after the airflow flows into the sound-deadening chamber 11, so as to achieve the effects of vibration reduction and noise reduction. Furthermore, when the damping layer 20 is disposed on the inner wall of the muffling cavity, or simultaneously the damping layer 20 is disposed on the inner wall of the muffling cavity and/or the outer surface of the muffler shell, such that the air flow flows into the muffling cavity 11 and impacts the inner wall of the muffling cavity, the damping layer 20 can absorb part of the energy in advance, thereby achieving the effects of vibration and noise reduction, and preventing the air flow from directly impacting the inner wall of the muffling cavity, so as to improve the strength of the muffler.

Preferably, the thickness of the damping layer 20 is not less than 0.1mm, and in a specific implementation process, the thickness of the damping layer 20 is not less than 0.1mm, so that the thickness of the damping layer 20 is not limited by the precision of the processing technology, and the thicker the thickness of the damping layer 20 is, the better the vibration and noise reduction effect is without considering the cost and the weight of the damping layer 20.

Referring to fig. 3-5, in a preferred embodiment, the damping layer 20 is disposed on the inner wall of the sound-deadening chamber, wherein the damping layer disposed on the side wall of the sound-deadening chamber is a side wall damping layer 21, and the specific structure thereof is shown in fig. 4, and the damping layer disposed on the top surface of the sound-deadening chamber is a top surface damping layer 22, and the specific structure thereof is shown in fig. 5. The damping layer 20 is provided with a plurality of damping holes, the damping layer is made of damping alloy materials, the damping layer 20 is provided with a plurality of damping holes, specifically, the damping layer 20 is provided with a plurality of fine through holes randomly, when sound waves of a certain frequency pass through the damping holes, noise identical to the resonance frequency of the damping holes is absorbed and attenuated in each damping hole, the damping holes can further improve the vibration and noise reduction effect, the damping holes can be only arranged on one of the side wall damping layer 21 and the top surface damping layer 22, and also can be arranged on both the side wall damping layer 21 and the top surface damping layer 22, wherein the side wall damping layer 21 and the top surface damping layer 22 can be of split structures, the side wall damping layer 21 is shown in fig. 4, and the top surface damping layer 22 is shown in fig. 5. The side wall damping layer 21 and the top surface damping layer 22 may also be a one-piece structure, as shown in fig. 3, which facilitates installation.

Referring to fig. 6 in conjunction with fig. 1, a damping layer is disposed on an outer surface of the muffler shell, the damping layer is a damping shell 23, a shape of the damping shell 23 is identical to a shape of the muffler shell 10, the damping shell 23 can be closely attached to the outer surface of the muffler shell, and the damping shell 23 is made of a damping alloy material. Preferably, the thickness of the damping layer 20 is not less than 0.1mm, and in a specific implementation process, the thickness of the damping shell 23 is not less than 0.1mm, so that the thickness of the damping shell 23 is not limited by the precision of the processing technology, and the thicker the thickness of the damping layer 20 is, the better the vibration and noise reduction effect is without considering the cost and the weight of the damping shell 23.

Preferably, the specific damping value of the damping layer 20 is not less than 0.1, because the damping layer 20 is disposed on the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell in this application. That is, a damping patch layer or a mounting structure may be provided on the inner wall of the sound-deadening chamber. Or a damping patch layer or a mounting structural member is arranged on the outer surface of the silencer shell. Or, be the inner wall in amortization chamber with all set up damping paster layer or mounting structure on the surface of muffler casing when the inner wall in amortization chamber with all set up the damping layer on the surface of muffler casing, can be the inner wall in amortization chamber with set up damping paster layer or mounting structure simultaneously on the surface of muffler casing, also can be one of them sets up damping paster layer, mounting structure on the other one. Because the strength requirement on the damping layer 20 is relatively low, and the specific damping value of the damping layer 20 is not less than 0.1, the strength requirement of the damping layer 20 can be met, and the effects of vibration reduction and noise reduction can also be achieved. It should be noted that, in the present application, the larger the value of the specific damping value of the damping layer 20 is, the better the vibration and noise reduction effect is, regardless of the cost and strength.

The damping alloy material adopted by the damping layer 20 is one of a twin crystal type, a dislocation type and a ferromagnetic type, and the damping layer made of the damping alloy material of the twin crystal type, the dislocation type and the ferromagnetic type can achieve the purposes of vibration reduction and noise reduction. The damping mechanism of the damping alloy material with the twin crystal form is as follows: under the action of periodic stress, the coherent twin crystal interface related to the thermal elastic martensite band carries out rearrangement movement, generates inelastic strain to relax the stress, dissipates the external vibration energy, and forms damping attenuation on the vibration, thereby reducing the noise. The damping alloy material with the twin crystal form comprises a Mn-Cu system, a Ti-Ni system, a Fe-Mn system and a Cu-Al system, and is mainly characterized by excellent damping performance and shape memory performance. The damping mechanism of the dislocation type damping alloy material is as follows: under the action of periodic stress, dislocations in some alloys can be separated from point defects (impurity atoms or vacancies) pinned along the line and move, additional dislocation strain can be generated in the elastic strain range in the process, so that internal loss is generated to dissipate external vibration energy, and dislocation type damping alloy materials are mainly Mg and Mg alloys and are mainly characterized by small specific gravity, good corrosion resistance and high damping performance. The damping mechanism of the ferromagnetic damping alloy material is as follows: under the action of periodic stress, the magnetic domain interface of a corresponding part in the alloy moves irreversibly due to the inverse effect of the magneto-mechanical effect, and the phenomenon that the strain lags behind the stress is generated on a stress-strain curve, so that internal loss is generated to dissipate the vibration energy. The ferromagnetic damping alloy material has the main characteristics of higher strength, lower cost, and excellent damping performance at higher temperature and low strain amplitude.

The inventor researches and discovers that the damping layer 20 is preferably made of dislocation type damping alloy materials, dislocation in some alloys can be separated from point defects (impurity atoms or vacancies) pinned along the line to move under the action of periodic stress, additional dislocation strain can be generated in the elastic strain range in the process, and accordingly internal loss is generated to dissipate external vibration energy, and the dislocation type damping alloy materials are mainly Mg and Mg alloys and are mainly characterized by small specific gravity, good corrosion resistance and high damping performance. Since the damping layer 20 is disposed on the inner wall of the muffling chamber and/or the outer surface of the muffler shell, it is considered preferable that the damping layer 20 is made of Mg — Zr alloy, which not only reduces noise generated by air flow impact, but also reduces the weight of the muffler. In one embodiment, the damping layer 20 is adhered to the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, or the damping layer 20 is welded to the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, so that the damping layer 20 is firmly arranged on the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell and does not slide relative to the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, thereby avoiding generating larger noise.

In other embodiments, a protrusion is disposed at an edge of the damping layer 20, a slot is disposed at an inner wall of the muffling chamber and/or an outer surface edge of the muffler shell, and the protrusion is clamped in the slot, that is, the damping layer 20 is mechanically pressed with the inner wall of the muffling chamber and/or the outer surface of the muffler shell. Therefore, the damping layer 20 can be firmly arranged on the silencer and cannot slide relative to the inner wall of the silencing cavity and/or the outer surface of the silencer shell, so that the noise is prevented from being generated, and the silencer is convenient to mount. Preferably, the protruding portion is in interference fit with the slot, so that the damping layer 20 can be stably connected with the inner wall of the sound-deadening cavity and/or the outer surface of the muffler shell.

It should be noted that, the damping layer 20 is disposed on the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, which may mean that the damping layer 20 covers the entire or a part of the inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, and here, the damping layer 20 is not limited to cover the entire inner wall of the sound-deadening chamber and/or the outer surface of the muffler shell, and the damping layer 20 may be disposed only in a local region where the gas force received by the inner wall of the sound-deadening chamber is large or only in the outer surface of the muffler shell corresponding to the local region. The silencer is arranged in the compressor for example, the bearing seat matched with the silencer is provided with the exhaust through hole and the air suction through hole, the area of the silencing cavity 11 close to the air suction through hole and the exhaust through hole is the area with the maximum gas force borne by the silencing cavity 11, the damping layer 20 can be arranged in the area, vibration energy can be absorbed in advance before the air flow impacts the inner wall of the silencing cavity, vibration and noise can be reduced, the strength of the area can be improved, the damping layer 20 can be arranged on the outer surface of the silencer shell opposite to the area, the area with concentrated vibration can be subjected to targeted vibration and noise reduction, the vibration and noise reduction efficiency is improved, and the damping layer 20 can be arranged on the outer surface of the area and the outer surface of the silencer shell opposite to the area.

The embodiment of the utility model provides a still provide a compressor, the compressor includes compressor housing, motor, compression cylinder and foretell muffler. The motor, the silencer and the compression cylinder are all arranged in the compressor shell. The motor is connected with the compression cylinder through a crankshaft to drive the compression cylinder to work, the silencer is arranged on a cylinder cover of the compression cylinder and is matched with a bearing seat of the crankshaft, the bearing seat is provided with an air suction through hole and an exhaust through hole, the silencer comprises a silencing cavity, the silencing cavity is communicated with the air suction through hole and/or the exhaust through hole, or the silencing cavity is directly communicated with a compression cavity inside the compression cylinder, when the compression cylinder sucks air, exhausts air or compresses air, air flow can enter the silencing cavity through the air suction through hole, the exhaust through hole or the compression cavity, as a damping layer is arranged on the inner wall of the silencing cavity and/or the outer surface of the silencer shell, the damping layer has a good resonance inhibiting effect and is arranged on the inner wall of the silencing cavity of the silencer and/or the outer surface of the silencer shell, because the damping layer has the damping characteristic, the damping layer can further absorb partial energy, so that the silencer achieves the purpose of better vibration reduction and noise reduction.

In another aspect, the present invention also provides an air conditioning system, which includes an indoor unit and an outdoor unit, wherein the outdoor unit is connected to the indoor unit. The outdoor unit comprises an evaporator and the compressor. The compressor comprises the silencer, gaseous refrigerant is compressed by the compressor and then becomes high-temperature and high-pressure refrigerant, the refrigerant enters the indoor unit to release heat, the refrigerant becomes low-temperature and low-pressure gas-liquid two-phase mixture after releasing heat, the mixture is evaporated and absorbed by the evaporator, the mixture becomes gaseous refrigerant after absorbing heat, then gas-liquid separation is carried out, and the separated gaseous refrigerant enters the compression cylinder. The gaseous refrigerant must pass through the compressor, the silencer is arranged in the compressor, the damping layer is arranged on the inner wall of the silencing cavity and/or the outer surface of the silencer shell, the damping is a parameter which well inhibits the structure from resonating, the damping layer is arranged on the inner wall of the silencing cavity of the silencer and/or the outer surface of the silencer shell, and the damping layer has the damping characteristic, so that the damping layer can further absorb partial energy, the silencer achieves the better vibration and noise reduction purpose, and the noise generated by the air conditioning system cannot be transmitted into the room as long as the vibration and noise reduction effect of the silencer is good.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (10)

1. A muffler, comprising:

a muffler housing having a muffler chamber; and the combination of (a) and (b),

a damping layer disposed on an inner wall of the sound-deadening chamber and/or an outer surface of the muffler shell.

2. The muffler of claim 1, wherein the damping layer has a thickness of not less than 0.1 mm.

3. The muffler of claim 1, wherein the damping layer is disposed on an inner wall of the muffling chamber, the damping layer is provided with a plurality of damping holes, and the damping layer is made of a damping alloy material.

4. The muffler of claim 1, wherein the damping layer is disposed on an outer surface of the muffler shell, the damping layer is a damping shell, the damping shell can be closely attached to the outer surface of the muffler shell, and the damping shell is made of a damping alloy material.

5. The muffler of claim 4 wherein the thickness of the damping housing is no less than 0.1 mm.

6. The muffler of claim 1, wherein the damping layer has a specific damping value of not less than 0.1.

7. The muffler of claim 1 wherein the damping layer is adhered to an inner wall of the muffling chamber and/or an outer surface of the muffler shell; alternatively, the damping layer is welded to the inner wall of the sound-deadening chamber and/or to the outer surface of the muffler shell.

8. The silencer of claim 1, wherein the edge of the damping layer is provided with a protruding portion, a clamping groove is formed in the inner wall of the silencing cavity and/or the edge of the outer surface of the silencer shell, and the protruding portion is clamped in the clamping groove.

9. A compressor, characterized in that it comprises a muffler as claimed in any one of claims 1 to 8.

10. An air conditioning system, characterized in that it comprises a compressor according to claim 9.

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