CN211144814U

CN211144814U - Air conditioner and air-cooled screw unit

Info

Publication number: CN211144814U
Application number: CN201921719763.6U
Authority: CN
Inventors: 罗星; 吴海钦; 周玲; 张婷婷
Original assignee: Shenzhen Mcquay Air Conditioning Co Ltd
Current assignee: Shenzhen Mcquay Air Conditioning Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-31
Anticipated expiration: 2029-10-14

Abstract

The utility model provides an air-cooled screw rod unit, include: the noise reduction hole box is used for containing the compressor, and a plurality of noise reduction holes for isolating low-frequency noise of the compressor are distributed on the circumferential direction and the top surface; the first sound insulation box is arranged outside the noise reduction hole box and used for isolating the noise of the full-frequency section of the compressor; the second sound-proof box is arranged outside the first sound-proof box, attached to the inner wall of the unit shell and used for containing all system valves and all system pipelines and isolating noise generated when all the system valves and the system pipelines operate. The air-cooled screw unit adopts a multilayer sound insulation structure, and has a remarkable sound insulation effect on multi-frequency-band noise generated by a compressor, system valves and pipelines. The utility model also provides an air conditioner including above-mentioned forced air cooling screw rod unit, this air conditioner noise is little, the comfort level is high.

Description

Air conditioner and air-cooled screw unit

Technical Field

The utility model relates to a cold screw rod technical field, more specifically say, relate to an air-cooled screw rod unit. The utility model discloses still relate to an air conditioner including above-mentioned forced air cooling screw rod unit.

Background

As is well known, a water chiller air conditioner is composed of a compressor, a fan, a valve and a refrigerant cycle, and inevitably generates noise during the operation of the air conditioner, especially high-frequency noise generated during the operation of the compressor and the valve, which becomes the largest source of noise pollution.

Currently, there are two main methods for noise reduction of an air conditioner: the noise generated by the shell of the compressor is reduced by wrapping soundproof cotton outside the compressor; the second kind adopts the compressor to install the sound-proof box additional and realizes. However, the two schemes are performed on the compressor, the noise reduction structure is single, the coverage frequency section is limited, and meanwhile, the noise of the valve piece and the pipeline cannot be reduced, so that the overall noise reduction effect is poor, and the noise reduction requirement is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air-cooled screw rod unit has solved the not good technical problem of noise reduction effect effectively. Another object of the present invention is to provide an air conditioner comprising the above air-cooled screw unit, which has the above technical advantages of the air-cooled screw unit.

The utility model provides an air-cooled screw rod unit, include:

the noise reduction hole box is used for containing the compressor, and a plurality of noise reduction holes for isolating low-frequency noise of the compressor are distributed on the circumferential direction and the top surface;

the first sound insulation box is arranged outside the noise reduction hole box and used for isolating the noise of the full-frequency section of the compressor;

and the second sound insulation box is arranged outside the first sound insulation box, attached to the inner wall of the unit shell and used for accommodating all system valves and all system pipelines and isolating noise generated when the system valves and the system pipelines operate.

Preferably, the noise reduction box comprises at least one bottom plate and at least five micro-porous plates, and all the micro-porous plates and all the bottom plates are spliced to form a closed square structure.

Preferably, the micro-porous plates and the base plate are connected by welding or detachably connected through screws.

Preferably, the first soundproof box and the second soundproof box are each formed of a closed square structure in which at least six soundproof plates are joined to each other.

Preferably, the sound insulation board is a sheet metal part.

Preferably, the acoustic panels are welded or detachably connected by screws.

Preferably, the sound insulation box further comprises sound absorption cotton attached to the inner wall of the first sound insulation box.

Preferably, the sound-absorbing cotton is polyester fiber sound-absorbing cotton or glass fiber sound-absorbing cotton or felt fiber cotton.

The utility model also provides an air conditioner, including air-cooled screw rod unit, air-cooled screw rod unit specifically is above-mentioned arbitrary air-cooled screw rod unit.

Compared with the prior art, the air cooling screw unit provided by the utility model adopts a multilayer surrounding structure, the noise reduction hole box surrounds the compressor to isolate low-frequency noise generated by the compressor, the first sound insulation box surrounds the noise reduction hole box, the first sound insulation box is utilized to isolate full-frequency-band noise generated by the compressor, and the noise reduction hole box is combined with the first sound insulation box to realize shielding of the noise of the compressor; and a second sound insulation box is arranged outside the first sound insulation box and used for accommodating all system valve components and system pipelines so as to isolate noise generated when the system valve components and the system pipelines operate. Therefore, multilayer noise reduction structure is adopted in this application, and the noise reduction frequency section is wide, and the noise cancelling effect is showing.

Furthermore, the utility model also provides an air conditioner including above-mentioned air-cooled screw rod unit, this air conditioner noise is little, and the travelling comfort is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an internal structure view of an air-cooled screw unit provided by the present invention;

fig. 2 is a schematic structural view of the air-cooled screw unit provided by the present invention;

FIG. 3 is a schematic view of the noise reduction cage of FIG. 2;

FIG. 4 is a partial schematic view of the first sound isolation box of FIG. 2.

Wherein, 1-compressor, 2-noise reduction hole box, 3-first sound insulation box, 4-second sound insulation box, 5-unit shell, 6-system valve, 7-system pipeline, 8-sound absorption cotton;

21-micro-porous plate.

Detailed Description

The core of the utility model is to provide an air-cooled screw rod unit adopts multilayer amortization structure, and the noise cancelling effect is showing. The other core of the utility model is to provide an air conditioner including above-mentioned air-cooled screw rod unit, this air conditioner has the above-mentioned technological effect of air-cooled screw rod unit.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 4, fig. 1 is an internal structure diagram of an air-cooled screw unit according to the present invention; fig. 2 is a schematic structural view of the air-cooled screw unit provided by the present invention; FIG. 3 is a schematic view of the noise reduction cage of FIG. 2; FIG. 4 is a partial schematic view of the first sound isolation box of FIG. 2.

The utility model provides an air-cooled screw unit, which comprises a noise reduction hole box 2, a first sound insulation box 3 and a second sound insulation box 4, wherein a compressor 1 is arranged in the noise reduction hole box 2, a plurality of noise reduction holes are uniformly distributed on the circumferential direction and the top surface of the noise reduction hole box 2, and low-frequency noise generated in the operation of the compressor 1 can be isolated and shielded through the box body and the noise reduction holes; the first sound insulation box 3 is arranged to surround the noise reduction hole box 2, that is, the first sound insulation box 3 is arranged outside the noise reduction hole box 2, and the first sound insulation box 3 can shield the full frequency band noise generated by the compressor 1; the externally mounted of first sound-proof box 3 has second sound-proof box 4, and this second sound-proof box 4 laminates in the inner wall of unit housing 5, and second sound-proof box 4 is equipped with the great cuboid sound-absorbing chamber of size, can reduce the produced impulsive noise of the interior refrigerant of the action of unit during operation valve member 6 and pipeline 7 to and filter a small part compressor noise that is not shielded, improve tone quality.

The core of this application lies in, adopts the multilayer shielding structure of suit mutually, utilizes to fall the noise hole case 2 and the most noise of first sound-proof box 3 filtration of making an uproar to fall the compressor 1, utilizes second sound-proof box 4 filtration to fall the noise that system valve 6 and system pipeline 7 operation produced and the compressor 1 fractional noise of non-filtration, and the effect of making an uproar is promoted to showing.

Fig. 3 shows a specific embodiment of the noise reduction cage 2. The noise reduction box 2 comprises a bottom plate and microporous plates 21, wherein the bottom plate is at least one, the microporous plates 21 are at least five, each bottom plate is spliced with the bottom surface of the box body, each microporous plate 21 is spliced with the top surface and the peripheral side surface of the box body, and the microporous plates 21 are connected with each other, the bottom plates and the microporous plates 21 and the bottom plates through connecting pieces or welded connection, so that a closed square structure is formed, the noise reduction box 2 is not limited to a square structure, the specific structure of the noise reduction box is determined according to the actual structure, and the noise reduction box is not limited herein.

The bottom plate can be made of sheet metal parts, the microporous plate 21 is made of noise reduction materials widely used in the market at present, the microporous plate 21 is made of a microporous plate sound absorption structure, and the noise reduction of the low-frequency band of 400-plus-500 HZ is realized by a specially-made microporous needle.

As can be seen from fig. 4, the first soundproof box 3 and the second soundproof box 4 are each formed by splicing at least six soundproof plates, and two adjacent soundproof plates are connected by a connecting member such as a screw or welded to form a closed square structure.

By the aforesaid, first sound-proof box 3 is used for holding and falls the perforated case 2 that makes an uproar to realize the full frequency section amortization, and second sound-proof box 4 is used for holding first sound-proof box 3 and whole system valve member 6 and pipeline 7, can reduce the noise that the refrigerant strikes and produces in the unit during operation valve member 6 action and the pipeline 7, filters the compressor noise once more, improves tone quality. The sound insulation board is preferably a sheet metal part, and may be an alloy part or a steel part.

Further, the sound-absorbing cotton 8 can be attached to the inner wall of the first sound-insulating box 3, as shown in fig. 1, that is, the sound-absorbing cotton 8 is attached to each inner wall of the first sound-insulating box 3, and the sound-absorbing cotton 8 is mainly used for realizing high-efficiency absorption for the full frequency band noise in the range of 1000-plus-4000 HZ, so that the sound-absorbing cotton 8 is combined with the first sound-insulating box 3 to realize the full frequency band noise reduction of the compressor 1, and the noise reduction effect is further improved. The sound-absorbing cotton 8 is preferably, but not limited to, a glass fiber sound-absorbing cotton in the prior art, and it may also be polyester fiber sound-absorbing cotton or felt fiber cotton.

To sum up, this application adopts four layers of sound-proof structure, and micropore board 21 realizes the amortization to compressor 1's low frequency, and first sound-proof box 3 constitutes sound-proof box with inhaling sound cotton 8 and carries out the amortization to compressor 1's full frequency channel, and at last, filters compressor 1's noise once more through second sound-proof box 4, reduces the refrigerant impulsive noise in the action of unit during operation valve member 6 and the pipeline 7, and the noise reduction effect that gives sound insulation is showing.

The utility model also provides an air conditioner, including above-mentioned air-cooled screw rod unit, owing to have air-cooled screw rod unit for this air conditioner obtains good silence effect.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

It is right above that the utility model provides an air conditioner and air-cooled screw rod unit has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An air-cooled screw unit, comprising:

the noise reduction hole box (2) is used for containing the compressor (1), and a plurality of noise reduction holes used for isolating low-frequency noise of the compressor (1) are distributed on the circumferential direction and the top surface;

the first sound insulation box (3) is arranged outside the noise reduction hole box (2) and is used for isolating the noise of the full-frequency section of the compressor (1);

and the second sound insulation box (4) is arranged outside the first sound insulation box (3), is attached to the inner wall of the unit housing (5), and is used for accommodating all system valve members (6) and all system pipelines (7) so as to isolate the noise generated when the system valve members (6) and the system pipelines (7) operate.

2. The air-cooled screw unit according to claim 1, characterized in that the noise reduction box (2) comprises at least one base plate and at least five micro-perforated plates (21), and all the micro-perforated plates (21) and all the base plates are spliced to form a closed square structure.

3. Air-cooled screw assembly according to claim 2, characterised in that the microplates (21) are welded or detachably connected by screws between each other and between the microplates (21) and the base plate.

4. The air-cooled screw unit according to any one of claims 1 to 3, wherein the first sound-insulating box (3) and the second sound-insulating box (4) are each formed by splicing at least six sound-insulating plates to form a closed square structure.

5. Air-cooled screw unit according to claim 4, characterized in that the acoustic panel is in particular a sheet metal part.

6. The air-cooled screw unit according to claim 5, wherein the baffles are welded or detachably connected by screws.

7. The air-cooled screw unit according to claim 6, further comprising sound-absorbing cotton (8) attached to the inner wall of the first soundproof box (3).

8. Air-cooled screw unit according to claim 7, characterised in that the sound-absorbing cotton (8) is in particular polyester fibre sound-absorbing cotton or glass fibre sound-absorbing cotton or felt fibre cotton.

9. An air conditioner, comprising an air-cooled screw unit, characterized in that the air-cooled screw unit is specifically the air-cooled screw unit of any one of the claims 1 to 8.