CN113932322A

CN113932322A - Compressor assembly and air conditioner with same

Info

Publication number: CN113932322A
Application number: CN202111263505.3A
Authority: CN
Inventors: 张洪千; 黄太平; 王琛
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-01-14

Abstract

The application provides a compressor unit spare and have its air conditioner, the compressor body with fall the cover of making an uproar, fall the cover of making an uproar and locate this external compressor, and fall and form between cover and the compressor body and fall the chamber of making an uproar, the internal surface that falls the cover of making an uproar is provided with resonance sound-absorbing structure. According to the compressor assembly and the air conditioner with the same, the noise and the vibration of the unit can be effectively reduced.

Description

Compressor assembly and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a compressor assembly and an air conditioner with the same.

Background

At present, compressor components are the main sources of noise and vibration of units, particularly high-power units such as household machines and multi-split air conditioners, and the noise generated during the operation of the compressor components of the units is often emitted through a supporting structure. At present, in actual processing and production of the unit, because the internal space is compact, the damping and noise reduction mode of the compressor assembly mostly adopts soundproof cotton wrapped by flame-retardant felt and butyl rubber around the compressor assembly and at the top of the compressor assembly, and a foot pad is connected between the compressor assembly and a chassis to form a single-stage damping mechanism.

However, the existing soundproof cotton uses cotton on two sides and middle leather as the best material, but has thick material, high cost and difficult installation, and meanwhile, the middle and low frequency noise generated by the compressor component is difficult to control and meets the requirement of a client on a low noise unit.

Therefore, how to provide a compressor assembly capable of effectively reducing noise and vibration of a unit and an air conditioner having the same becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

Therefore, the technical problem to be solved by the present application is to provide a compressor assembly and an air conditioner having the same, which can effectively reduce noise and vibration of a unit.

In order to solve the above problems, the present application provides a compressor assembly including:

a compressor body;

and the noise reduction cover is arranged outside the compressor body, a noise reduction cavity is formed between the noise reduction cover and the compressor body, and a resonance sound absorption structure is arranged on the inner surface of the noise reduction cover.

Further, the resonance sound absorption structure is a helmholtz resonant cavity;

and/or the number of the resonance sound absorption structures is set to be a plurality, and the plurality of resonance sound absorption structures are uniformly arranged on the inner surface of the noise reduction cover.

Further, when the resonant sound absorbing structure is a helmholtz resonator, the helmholtz resonator comprises an inlet section and a flared cavity which are communicated in sequence; the cross section of the inlet section is a circular surface; and/or the cross section of the flaring cavity is a circular surface.

Further, the resonance frequency of each resonance sound absorption structure is f 0; the working frequency of the compressor body is f 1; wherein f1 is f 0.

Further, the compressor body is a variable frequency compressor; the resonance sound absorption structures form at least two groups of resonance sound absorption groups, the resonance frequency of each resonance sound absorption structure in the same group of resonance sound absorption groups is equal, and the resonance frequency of the resonance sound absorption structure in each resonance sound absorption group is different from the resonance frequency of the resonance sound absorption structure in any other resonance sound absorption group; the resonance sound absorption groups are arranged in one-to-one correspondence with the resonance frequency sections of the variable frequency compressor.

Further, the compressor assembly comprises a chassis structure, the compressor body is arranged on the chassis structure, the chassis structure comprises a chassis body, and a buffer structure is arranged between the compressor body and the chassis body.

Furthermore, the buffer structure comprises a backing plate, the backing plate is arranged on the chassis body, and the backing plate comprises a bending area or a bending area; the compressor body is arranged on the backing plate.

Further, the noise reduction cover comprises a cover cylinder and a top cover, and the top cover is arranged at the top of the cover cylinder to form a cover top.

Furthermore, the cover cylinder is formed by rolling a sound insulation rubber plate around the compressor body, and a supporting part is arranged on the inner surface of the sound insulation rubber plate so that a noise reduction cavity is formed between the sound insulation rubber plate and the compressor body;

and/or, the top cover is provided with a crack;

and/or the top cover is provided with a crack and/or an exhaust pipe abdicating hole and/or an air suction pipe abdicating hole; and/or the cover cylinder is provided with a pipeline yielding hole.

According to still another aspect of the present application, there is provided an air conditioner including a compressor assembly as described above.

The application provides a compressor unit spare and have its air conditioner, the cavity of making an uproar promptly falls in the formation airtight cavity between the surface of this application noise reduction cover and compressor body, falls noise reduction cover internal surface and is covered with resonance and inhales the sound structure, inhales the sound structural design frequency when compressor frequency and partial resonance and is close, produces resonance, and can turn into the heat energy consumption with the vibration and scatter to reach the vibration/noise reduction purpose. This application can effectively reduce unit noise, vibrations.

Drawings

FIG. 1 is a schematic structural view of a compressor assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of an installation configuration of a compressor assembly according to an embodiment of the present application;

FIG. 3 is a schematic structural view of an acoustic rubber sheet according to an embodiment of the present application;

fig. 4 is a schematic structural view of a resonance sound absorption structure according to an embodiment of the present application;

fig. 5 is a schematic structural view of a resonance sound absorbing structure according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a top cover according to an embodiment of the present application.

The reference numerals are represented as:

1. a chassis structure; 11. a chassis body; 12. a base plate; 2. a compressor body; 3. a noise reduction hood; 31. a resonant sound absorbing structure; 311. an inlet section; 312. expanding the oral cavity; 32. a cover cylinder; 321. a sound insulation rubber plate; 322. a hasp; 323. a pipeline abdicating hole; 33. a top cover; 331. an exhaust pipe abdicating hole; 332. an air suction pipe abdicating hole; 333. a groove; 334. a breach; 34. a support portion; 41. a first fixed structure; 42. a second fixed structure.

Detailed Description

Referring collectively to fig. 1-6, a compressor assembly comprises: compressor body 2 and fall the cover 3 of making an uproar, fall and fall the cover 3 cover of making an uproar and locate outside compressor body 2, and fall and form between cover 3 and the compressor body 2 of making an uproar and fall the chamber of making an uproar, fall the internal surface of cover 3 of making an uproar and be provided with resonance sound absorbing structure 31. The chamber of making an uproar promptly falls in the airtight cavity that forms between the surface of the cover 3 of making an uproar and compressor body 2 falls in this application, falls 3 internal surfaces of cover of making an uproar and is covered with resonance sound absorbing structure 31, and when compressor frequency and partial resonance sound absorbing structure 31 design frequency were close, produce resonance, and can turn into the thermal energy consumption with the vibration and scatter to reach vibration/noise reduction purpose. The sound wave energy of each frequency band radiated outwards by the air conditioner compressor is absorbed and weakened, and the noise and the vibration of the unit are effectively reduced; compared with the prior art, the damping and noise reducing device of the unit has the advantages that the damping and noise reducing effect of the unit is achieved, meanwhile, the damping and noise reducing device is lighter and thinner in size, simpler in structure and easier to install and disassemble; the problem of air conditioner compressor in the existing market can produce noise pollution in the work to can not obtain effective control is solved.

The present application also discloses embodiments where the resonant sound absorbing structure 31 is a helmholtz resonator.

The application also discloses some embodiments, the number of the resonance sound absorption structures 31 is set to be a plurality, and a plurality of resonance sound absorption structures 31 are uniformly arranged on the inner surface of the noise reduction cover 3.

The present application also discloses some embodiments, when the resonant acoustic structure 31 is a helmholtz resonator, the helmholtz resonator comprises an inlet section 311 and a flared cavity 312, which are in communication in sequence; the cross section of the inlet section 311 is a circular surface; the present application also discloses that the cross-section of the flare cavity 312 of some embodiments is a circular face. Namely, the resonance sound-absorbing structure 31 is a small-opening container in the shape of a circular tube boss, when the air column in the throat, i.e. the inlet section 311, vibrates under the action of noise waves radiated by the air-conditioning compressor, the resonance sound-absorbing structure 31 is equivalent to an air spring system with damping due to the friction action between the air column and the wall of the hole, and the vibration energy of the air column is gradually converted into heat energy and dissipated, i.e. the friction loss absorbs the sound energy due to the damping action. The noise control of the multi-band compressor is realized by setting the structural sizes of the resonance cavity, namely the flaring cavity 312, and the hole neck, namely the inlet section 311, in the resonance sound absorption structures 31 around the compressor to match different noise frequencies of the compressor. Each resonance sound absorption structure 31 is communicated with the noise reduction cavity through the inlet section 311, the air column generates resonance in the inlet section 311, and vibration energy is converted into heat energy to be dissipated through friction between the air column and the inner wall of the inlet section 311, so that the purposes of shock absorption and noise reduction are achieved. When the air column of the inlet section 311 vibrates under the sonic excitation of the compressor, there is friction between the air column and the wall of the bore inlet section 311, which now acts as a damped air spring system. Under the action of damping, the vibration energy of the air column is gradually converted into heat energy and is lost, namely, the heat loss generated by friction absorbs the sound energy. When the frequency of the noise sound wave is the same as the natural frequency of the system, the air column of the inlet section 311 produces violent vibration due to resonance, and the loss amount of sound energy reaches the maximum, so that the sound wave emitted into the opening is absorbed by the resonant cavity, and the best vibration and noise reduction effect is achieved.

The present application also discloses embodiments where each resonant sound absorbing structure 31 has a resonant frequency f 0; the operating frequency of the compressor body 2 is f 1; wherein f1 is f 0. The resonance sound absorption structure 31 is a small open container in the shape of a circular pipe boss. When subjected to sound waves, the inlet section 311 vibrates with air and the air in the container exerts a restoring force thereon. When the wavelength of the sound wave is far greater than the opening depth and the opening diameter, the elastic deformation of the air column of the inlet section 311 is small and can not be considered, and the kinetic energy of the air vibration in the resonance sound-absorbing structure 31 is considered to be concentrated in the movement of the air of the inlet section 311, and the potential energy is only related to the elastic deformation of the air in the container. Thus, the resonant sound-absorbing structure 31 is a one-dimensional vibration system composed of the effective mass of air in the inlet section 311 and the elasticity of air in the container

The system, and therefore the resonance phenomenon for the applied acoustic wave, the resonance frequency is:

where f0 is the resonance frequency of the resonance sound absorbing structure 31, c is the sound velocity, S is the cross-sectional area of the opening, d is the diameter of the opening, l is the height of the opening, and V is the volume of the resonance sound absorbing structure 31.

According to the formula, the resonance sound absorption structure 31 arranged around the compressor can be matched with different noise frequencies of the compressor by setting the sizes of the flaring section and the inlet section 311, and further the noise control of the multi-band compressor is realized. The internal structure of the resonance sound absorbing structure 31 of the present invention is not limited to the shape of a cylindrical boss, i.e., the shape of the inlet section 311 and the flared section, but may be square, etc., as long as the shape is a small-opening closed container and the resonance frequency f0 is easily obtained. The resonant sound-absorbing structure 31 has any caliber and height, and the size of the volume of the resonant cavity, but for each order frequency of the compressor of the unit, the resonant sound-absorbing structure 31 corresponding to the resonant sound-absorbing structure is required to eliminate the frequency noise, and the resonant sound-absorbing structure is uniformly distributed in the resonant sound-absorbing layer.

The application also discloses some embodiments, the compressor body 2 is a variable frequency compressor; the resonance sound-absorbing structures 31 form at least two groups of resonance sound-absorbing groups, the resonance frequencies of the resonance sound-absorbing structures 31 in the same group of resonance sound-absorbing groups are equal, and the resonance frequency of the resonance sound-absorbing structure 31 in each resonance sound-absorbing group is different from the resonance frequency of the resonance sound-absorbing structure 31 in any other resonance sound-absorbing group; the resonance sound absorption groups are arranged in one-to-one correspondence with the resonance frequency sections of the variable frequency compressor. For example, when the frequency conversion range of the compressor is 30 to 70HZ, a plurality of rows, for example, 41 rows or 82 rows of resonance sound-absorbing structures 31 can be uniformly distributed on the vibration-absorbing and noise-reducing rubber plate, and for convenience of processing, the dimension and structure of each row of resonance sound-absorbing structures 31 are the same and respectively correspond to each step frequency of the compressor, so that the noise radiated to the periphery by the compressor is effectively absorbed and blocked by the resonance sound-absorbing device wrapped on the surface of the compressor.

The application also discloses some embodiments, the compressor assembly includes chassis structure 1, compressor body 2 sets up on chassis structure 1, and chassis structure 1 includes chassis body 11, is provided with buffer structure between compressor body 2 and the chassis body 11.

The application also discloses some embodiments, the buffer structure comprises a backing plate 12, the backing plate 12 is arranged on the chassis body 11, and the backing plate 12 comprises a bending area or a bending area; the compressor body 2 is disposed on the backing plate 12. The vibration and noise reduction device of the air conditioner compressor comprises a base plate, a bent base plate 12 is fixedly connected to the upper surface of the base plate through bolts and nuts, the compressor is fixedly connected to the upper surface of the base plate 12, and the vibration and noise reduction device is wrapped around the compressor, so that the multi-band noise of the compressor is absorbed. The buffer structure also comprises a rubber foot pad; a rubber foot pad is connected between the compressor and the backing plate 12, the backing plate 12 with the bend is made of elastic materials, and the structure can effectively absorb and buffer vibration of the compressor. The compressor assembly further includes a second fixing structure 42, which is a bolt and nut.

The application also discloses some embodiments, and noise reduction cover 3 includes cover cylinder 32 and top cover 33, and top cover 33 sets up and forms the cover top at the top of cover cylinder 32. The vibration/noise reduction rubber plate and the top cover 33 of the wrapped compressor are fully distributed with the resonance sound absorption structure 31 on the inner sides of the top cover 33 and the vibration/noise reduction rubber plate, and gaps exist between the vibration/noise reduction rubber plate and the top cover 33 and the compressor to form a closed cavity. The resonance sound-absorbing structure 31 is fully distributed on the inner sides of the top cover 33 and the vibration and noise reduction rubber plate, and a gap exists between the vibration and noise reduction rubber plate and the top cover 33 and the compressor to form a closed cavity. To the compressor of different models, can select the vibration/noise reduction offset plate and the top cap 33 that correspond the specification according to the size of compressor, the noise that the compressor distributed out inhales the sound layer sound absorption that sound structure 31 constitutes by resonance earlier, and the sound insulation of rethread PVC offset plate reaches better vibration/noise reduction effect.

The application also discloses some embodiments, the cover cylinder 32 is formed by rolling the sound-proof rubber plate 321 around the compressor body 2, and the inner surface of the sound-proof rubber plate 321 is provided with the supporting part 34 so that a noise reduction cavity is formed between the sound-proof rubber plate 321 and the compressor body 2. The sound insulation rubber plate 321 is fixed on the surface of the compressor through the hasps 322, and the material is environment-friendly and low in cost. This application is fallen 3 materials of cover of making an uproar and is selected for use syllable-dividing offset plate 321, and the resonance that arranges through the internal surface when giving sound insulation inhales the sound structure 31 sound absorption and falls and make an uproar, need not additionally additional felt sound absorption layer, has greatly reduced the cost and the installation degree of difficulty of vibration/noise reduction device, and can effectively solve the big problem of well, low frequency noise below the 1000 Hz.

The application also discloses embodiments, and the top cover 33 is matched with the cover cylinder 32 through a concave-convex structure.

The present application also discloses embodiments in which a split 334 is provided in the cap 33. Damping and noise reduction device top cap 33 is equipped with inhales, exhaust pipe hole 323 and breach 334 of stepping down, and the offset plate material has certain toughness, cooperatees at the damping and noise reduction offset plate on compressor surface through tongue and parcel, when being convenient for assemble, has better leakproofness and waterproof nature.

The present application also discloses embodiments wherein the top cover 33 is provided with a split 334 and/or an exhaust duct relief hole 331 and/or an intake duct relief hole 332.

The application also discloses embodiments, and a pipeline abdicating hole 323 is arranged on the cover cylinder 32. Install vibration/noise reduction device on the compressor, in order to reach better vibration/noise reduction and water-proof effects, can paint sealed glue at the contact position of top cap 33 and offset plate and top cap 33 abdication hole and breathing pipe, blast pipe.

The installation of the vibration and noise reduction device is as follows: after the compressor is assembled and welded with the air suction pipe, the exhaust pipe and other pipelines, the vibration and noise reduction rubber plate can be directly wrapped on the compressor and fixed through the hasps 322, then the top cover 33 is assembled on the compressor, and the top cover 33 is matched with the vibration and noise reduction rubber plate through the convex groove of the outline of the top cover 33. This application mainly comprises the damping and noise reduction offset plate and the top cap 33 of parcel compressor, and the offset plate is PVC material for preferred choice. The first fixing structures 41 for fixing the compressor bracket are arranged in a triangular shape, and the first fixing structures 41 are bolts and nuts; the pad shock absorption is arranged between the bolt and the pad 12, the bent pad 12 is made of elastic materials, vibration from the compressor is attenuated after passing through the pad and the shock absorption pad 12, and noise is reduced accordingly. The base plate 12 bent by the compressor has better effects due to the arrangement of the positions on the internal structure of the air conditioner external unit, and has better damping and noise reducing effects.

According to an embodiment of the present application, there is provided an air conditioner including a compressor assembly, the compressor assembly being the above-mentioned compressor assembly.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A compressor assembly, comprising:

a compressor body (2);

and fall the cover of making an uproar (3), fall the cover of making an uproar (3) and locate outside compressor body (2), just fall the cover of making an uproar (3) with form between compressor body (2) and fall the chamber of making an uproar, the internal surface of falling the cover of making an uproar (3) is provided with resonance sound absorbing structure (31).

2. Compressor assembly according to claim 1, in which the resonant sound-absorbing structure (31) is a helmholtz resonator;

and/or the number of the resonance sound absorption structures (31) is set to be a plurality, and the resonance sound absorption structures (31) are uniformly arranged on the inner surface of the noise reduction cover (3).

3. A compressor assembly according to claim 1, wherein, when the resonant sound absorbing structure (31) is a helmholtz resonator, the helmholtz resonator comprises an inlet section (311) and a flared cavity (312) communicating in sequence; the cross section of the inlet section (311) is a circular surface; and/or the cross-section of the flaring cavity (312) is a circular surface.

4. Compressor assembly according to claim 1, wherein each resonant sound-absorbing structure (31) has a resonant frequency f 0; the operating frequency of the compressor body (2) is f 1; wherein f1 is f 0.

5. Compressor assembly according to claim 1, in which the compressor body (2) is an inverter compressor; the resonance sound absorption structures (31) form at least two groups of resonance sound absorption groups, the resonance frequency of each resonance sound absorption structure (31) in the same group of resonance sound absorption groups is equal, and the resonance frequency of the resonance sound absorption structure (31) in each resonance sound absorption group is different from the resonance frequency of the resonance sound absorption structure (31) in any other resonance sound absorption group; and the resonance sound absorption groups are arranged in one-to-one correspondence with the resonance frequency sections of the variable frequency compressor.

6. Compressor assembly according to claim 1, characterized in that the compressor assembly comprises a base structure (1), the compressor body (2) being arranged on the base structure (1), the base structure (1) comprising a base body (11), a buffer structure being arranged between the compressor body (2) and the base body (11).

7. Compressor assembly according to claim 6, in which the buffer structure comprises a shim plate (12), the shim plate (12) being arranged on the chassis body (11), the shim plate (12) comprising a bending or bending zone; the compressor body (2) is arranged on the backing plate (12).

8. Compressor assembly according to claim 1, characterized in that the noise reduction hood (3) comprises a hood cylinder (32) and a top cover (33), the top cover (33) being arranged on top of the hood cylinder (32) forming a hood roof.

9. Compressor assembly according to claim 8, characterized in that the shroud cylinder (32) is rolled around the compressor body (2) by a sound-damping rubber sheet (321), the sound-damping rubber sheet (321) being provided on its inner surface with a support (34) so that the sound-damping rubber sheet (321) and the compressor body (2) form the noise-reducing chamber therebetween;

and/or the top cover (33) is matched with the cover cylinder (32) through a concave-convex structure;

and/or, a crack (334) and/or an exhaust pipe abdicating hole (331) and/or an air suction pipe abdicating hole (332) are/is arranged on the top cover (33);

and/or a pipeline yielding hole (323) is arranged on the cover cylinder (32).

10. An air conditioner comprising a compressor assembly, wherein the compressor assembly is as claimed in any one of claims 1 to 9.