CN216481313U - Outdoor machine of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner outdoor unit, which comprises a compressor, wherein a sound-proof cover is arranged on an outer cover of the compressor, the sound-proof cover comprises a sound-proof cover body, the sound-proof cover body is used for limiting a containing space for containing the compressor, the sound-proof cover body comprises a supporting component and a sound-absorbing layer formed on the inner side and/or the outer side of the supporting component, a plurality of resonance parts are arranged at intervals in the sound-absorbing layer of the sound-proof cover, and sound waves with specific frequencies enter the resonance cavities to cause particles in the cavities to vibrate and absorb sound energy, so that the energy under the specific frequencies is reduced; the arrangement of the resonator does not influence the whole thickness of the sound absorbing layer, so that the absorption effect of medium-high frequency noise is not reduced; and because the resonator can not improve the integral rigidity of the original sound-proof cover, the compressor on the production line can be wrapped, the improvement can be carried out on the basis of the existing sound-proof cover, the scheme is simple, the economic benefit is high, the production efficiency of the production line can be ensured, and the practicability is high.

Description

Outdoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner outdoor unit.

Background

An air conditioner is a common household appliance in daily life, and generally comprises an indoor unit and an outdoor unit, wherein the indoor unit is arranged on the indoor side, the outdoor unit is arranged on the outdoor side, and a compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas and is the heart of a refrigerating system. The outdoor unit, as an important component, sucks low-temperature and low-pressure refrigerant gas from a suction pipe, compresses the refrigerant gas by driving a piston through the operation of a motor, and discharges high-temperature and high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle.

The noise source of the air conditioner mainly comprises two parts, namely compressor noise and fan noise. The noise of the compressor is mainly medium-high frequency, and the arrangement of the sound insulation cover of the compressor at present mainly aims to eliminate the medium-high frequency noise of the compressor. However, when the middle and high frequency noise energy is suppressed, the low frequency noise becomes prominent, and the overall OA value level cannot be in an ideal state.

In addition, in the development of the whole machine, the problem that the frequency 2 and the frequency 4 of the compressor are high is often encountered, and the operating frequency of the compressor is generally about 100Hz, so the frequency 2 and the frequency 4 are respectively about 200Hz and 400Hz, and the problem of low frequency is very difficult to solve in a limited space.

In order to increase the low-frequency processing capacity, many patents introduce helmholtz resonators, micro-perforation technologies and the like, and the introduction of the technologies realizes the control of low-frequency noise, but in practical application, the solutions are difficult to implement, for example, the helmholtz resonators require resonant cavities to be rigid walls, and the rigid walls cannot be used when the production line of the compressor is wrapped; in addition, the installation of a large area resonant cavity will occupy the space of the original sound-absorbing cotton, causing the problem of the reduction of the sound wave energy around the resonant peak.

The difficulty of the micro-perforated sound-proof shield lies in that the micro-perforated process is complex, the cost is too high, the micro-perforated sound-proof shield cannot be directly applied to the household electrical appliance industry, in addition, the micro-perforated sound-proof shield also belongs to the narrow-band noise control technology, and the problem that the energy of medium-high frequency noise is increased due to the same occupied space of a Helmholtz resonator can occur.

Disclosure of Invention

The utility model aims to provide an air conditioner outdoor unit, which solves the problems that high-frequency and low-frequency noises in a compressor cannot be eliminated simultaneously in the prior art and the like.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

the utility model provides an air condensing units, its includes the compressor, the compressor dustcoat is equipped with the sound-proof housing, the sound-proof housing includes the sound-proof housing body, and it is used for injecing and is used for holding the accommodation space of compressor, the sound-proof housing body includes supporting component, forms the sound absorbing layer in the inboard and/or the outside of supporting component, the sound absorbing layer internal interval is provided with a plurality of resonance portions.

In some embodiments of the present application, each of the resonance parts includes at least one resonance tube, and both ends of the resonance tube are closed.

In some embodiments of the present application, an opening is formed on a sidewall of the resonance tube.

In some embodiments of the present application, the resonance portion includes a plurality of resonance tubes with different radii and sleeved with each other, and in the same resonance portion, the openings on the resonance tubes sleeved with each other do not overlap.

In some embodiments of the present application, a resonant cavity is formed within the resonator tube.

In some embodiments of the present application, the material of the resonance tube is a hard plastic or a metal.

In some embodiments of the present application, the support assembly includes a support ceiling and a support side panel, the support ceiling covering being disposed over the support side panel.

In some embodiments of the present application, the sound absorbing layer comprises sound absorbing cotton in which the sound absorbing layer is made of a porous material.

In some embodiments of the present application, the material of the support member is PVC or rubber.

In some embodiments of the present application, the sound enclosure body has a plurality of compressor relief holes formed therein.

Compared with the prior art, the utility model has the advantages and positive effects that:

the air conditioner that this application relates to sets up the sound-proof cover in the outside of compressor, sets up the resonator in the sound absorbing layer of sound-proof cover, and the theory of operation of resonator is similar with helmholtz resonator, and the sound wave of specific frequency gets into the resonant cavity and arouses the intracavity particle vibration, absorbs the sound energy to reduce the energy under the specific frequency.

A certain distance is arranged between resonators in the sound absorption layer, and the arrangement of the resonators does not influence the whole thickness of the sound absorption layer, so that the absorption effect of medium-high frequency noise is not reduced; secondly, because the resonators are independent individuals and are inserted into the fluffy sound absorption layer, and the distance exists between the resonators, the integral rigidity of the original sound insulation cover cannot be improved, and the compressor on a production line can be wrapped conveniently.

The sound-proof housing that relates to among this air condensing units can improve on current sound-proof housing basis, and the scheme is simple, and economic benefits is high, and can guarantee again to produce line production efficiency, and the feasibility of implementation is high.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural view of a compressor and a soundproof cover in an outdoor unit of an air conditioner according to the present invention;

FIG. 2 is a schematic view showing the position of a resonance part in a sound-absorbing layer in a soundproof cover;

FIG. 3 is a schematic perspective view of a resonance portion according to an embodiment of the present invention;

FIG. 4 is one of schematic end-face structures of a resonance portion including a single resonance tube;

FIG. 5 is a second schematic end view of the resonator portion including a single resonator tube;

fig. 6 is a schematic end-face structure diagram of a resonance portion including two resonance tubes;

FIG. 7 is a schematic end view of a resonance portion including three resonance tubes;

in the figure, the position of the upper end of the main shaft,

100. a compressor;

200. a sound-proof housing;

210. a support assembly;

211. supporting a top plate;

212. supporting the side plates;

220. a sound absorbing layer;

230. a resonance section;

231. a resonance tube;

2311. a first resonance tube;

2312. a second resonance tube;

2313. a third resonance tube;

232. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

[ basic operation principle of air conditioner ]

A refrigeration cycle of an air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and cools or heats an indoor air conditioner.

The compressor compresses a refrigerant gas that has been formed into a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion including a compressor of a refrigeration cycle and includes an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of the air conditioner.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

The present application provides an outdoor unit of an air conditioner, which includes a compressor 100, and referring to fig. 1 and 2, an enclosure of the compressor 100 is provided with a sound-proof enclosure 200, and a detailed description will be given below with respect to a specific structure of the sound-proof enclosure 200.

The soundproof cover 200 includes a soundproof cover 200 body for defining a receiving space for receiving the compressor 100, and an opening 232 below the soundproof cover 200 body is provided at an outer periphery of the compressor 100 from top to bottom.

The acoustic enclosure 200 body includes a support assembly 210 and an acoustic layer 220, the support assembly 210 serving as a support for the entire acoustic enclosure 200 structure.

The sound absorbing layer 220 is formed on the inside and/or outside of the support member 210, and preferably, the sound absorbing layer 220 is disposed on the inside of the support member 210, that is, between the support member 210 and the compressor 100 in an installed state.

As shown in fig. 1 to 7, a plurality of resonance portions 230 are disposed at intervals in the sound absorbing layer 220, and the size of the resonance portions 230 is not greater than the overall thickness of the sound absorbing layer 220, so that the overall thickness of the sound absorbing layer 220 is not affected, the overall rigidity of the soundproof cover 200 is not increased, and the compressor 100 on the production line can be wrapped.

The resonance parts 230 are spaced at a certain distance, so that the influence on the thickness and density of the sound absorption layer 220 can be reduced, and the influence on the absorption effect of medium-high frequency noise can be avoided.

Specifically, in one embodiment of the present application, referring to fig. 4, each resonance part 230 includes at least one resonance tube 231 with both ends closed, and the resonance tube 231 is a tubular structure with both ends closed and a resonance cavity is formed therein.

As shown in fig. 4 to 7, the resonance tube 231 is preferably a cylindrical tubular structure, and a cylindrical resonance cavity is formed therethrough, and the length direction of the resonance cavity is perpendicular to the thickness direction of the sound absorbing layer 220, and in particular, a plurality of resonators need to be inserted into the sound absorbing layer 220.

Of course, the resonator 231 may have other shapes besides the cylindrical tubular structure, as shown in fig. 3, and the sectional shape thereof may be a polygonal shape such as a triangle, a quadrangle, etc., which only provides one implementation and does not limit the specific shape thereof.

Referring to fig. 3 and 5, in order to reduce vibration of the resonance tube 231 during noise reduction and improve the use strength thereof, an opening 232 is formed on a sidewall of the resonance tube 231.

Referring to fig. 3, 6 and 7, in other embodiments of the present application, the resonance part 230 includes a plurality of resonance pipes 231 having different radii and being nested with each other, so as to minimize energy radiated from noise of the compressor 100.

The definitions are from outside to inside, namely, the first resonance pipe 2311 and the second resonance pipe 2322, although the number of the resonance pipes 231 in the same resonance part 230 is not limited, and a third resonance pipe 2313 may be provided, which is not exhaustive.

The multiple layers of resonator tubes 231 may form multiple resonant cavities, and sound waves of a specific frequency enter the multiple resonant cavities to cause particle vibration in the cavities, which is beneficial to improve the absorption of sound energy, thereby reducing the energy at the specific frequency.

In the same resonance part 230, the openings 232 on the resonance tubes 231 sleeved with each other are not overlapped, which is beneficial to improving the sealing degree of the inner cavities of the resonance tubes 231 and improving the sound energy absorption efficiency.

The material of the resonance tube 231 is hard plastic or metal.

The supporting assembly 210 includes a supporting top plate 211 and a supporting side plate 212, the supporting top plate 211 is covered above the supporting side plate 212, the supporting top plate 211 and the supporting side plate 212 are generally made of soft PVC or rubber, and the supporting assembly is low in cost and simple in process.

The sound absorbing layer 220 includes a sound absorbing layer 220 made of porous material, such as waste cloth pressed material, cotton felt, glass fiber, and other porous multi-gap materials, which mainly plays a role in absorbing medium and high frequency noise.

The soundproof cover 200 is formed with a plurality of escape holes of the compressor 100 on its body to ensure the normal connection of the compressor 100 with external components.

In the outdoor unit of an air conditioner according to the present application, the sound-proof housing 200 is disposed outside the compressor 100, the sound-absorbing layer 220 of the sound-proof housing 200 has the resonance portion 230, and the resonance portion 230 has the resonance cavity formed therein, and the resonator has a similar operation principle to a helmholtz resonator, and sound waves of a specific frequency enter the resonance cavity to cause particles in the cavity to vibrate and absorb sound energy, thereby reducing energy of the specific frequency.

The size of the resonance part 230 is smaller than the thickness of the sound absorption layer 220, so that the influence on the whole thickness and density of the sound absorption layer 220 is small, and the absorption effect of medium-high frequency noise is not influenced; in addition, the overall rigidity of the original sound insulation cover cannot be improved, and the compressor 100 on a production line can be wrapped conveniently.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention shall be subject to the claims.

Claims (10)

1. The utility model provides an air condensing units, its characterized in that, includes the compressor, the compressor dustcoat is equipped with the sound-proof housing, the sound-proof housing includes the sound-proof housing body, and it is used for injecing and is used for holding the accommodation space of compressor, the sound-proof housing body includes supporting component, forms the sound absorbing layer in the inboard and/or the outside of supporting component, the sound absorbing layer interval is provided with a plurality of resonance portions.

2. The outdoor unit of claim 1, wherein,

each resonance part comprises at least one resonance tube, and two ends of each resonance tube are closed.

3. The outdoor unit of claim 2, wherein,

an opening is formed on a side wall of the resonance tube.

4. The outdoor unit of claim 3, wherein,

the resonance portion includes that a plurality of radiuses are different and the resonance pipe that cup joints each other, in same resonance portion, cup joint each other the opening on the resonance pipe is not coincident.

5. The outdoor unit of claim 2, wherein,

a resonant cavity is formed in the resonant tube.

6. The outdoor unit of claim 2, wherein,

the resonance tube is made of hard plastic or metal.

7. An outdoor unit of an air conditioner according to claim 1,

the supporting assembly comprises a supporting top plate and a supporting side plate, and the supporting top plate is covered above the supporting side plate.

8. The outdoor unit of claim 1, wherein,

the sound absorption layer comprises sound absorption cotton made of porous materials.

9. The outdoor unit of claim 1, wherein,

the supporting component is made of PVC or rubber.

10. The outdoor unit of claim 1, wherein,

a plurality of compressor avoidance holes are formed in the sound-proof housing body.

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