CN214468995U

CN214468995U - Outdoor unit of air conditioner

Info

Publication number: CN214468995U
Application number: CN202022844994.9U
Authority: CN
Inventors: 孙义祥; 王伟戈; 郝玉密
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-10-22
Anticipated expiration: 2030-12-01

Abstract

The utility model relates to an air conditioning technology field discloses an air condensing units, and it includes: the front side of the box body is provided with an air duct outlet; the fan is arranged in the box body at a position corresponding to the air duct outlet; the grille is arranged in the air channel outlet, a plurality of mutually independent air guide channels penetrating through the front end face and the rear end face of the grille are arranged on the grille, and sound absorption layers are arranged on the surfaces of the air guide channels. The utility model has the advantages that: the air duct outlet at the front side of the box body is provided with a grid, a plurality of mutually independent air guide channels are limited in the grid, and the surface of each air guide channel is provided with a sound absorption layer to realize resistance silencing respectively.

Description

Outdoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an air condensing units.

Background

At present, the outdoor unit of the air conditioner has two major noise sources, one is the fan noise, the other is the compressor noise, wherein, the fan noise mainly depends on optimizing motor structure, fan blade structure and reducing the fan rotational speed and falls and make an uproar, it is less to optimize motor and blade structure noise improvement volume, generally only 0.5dB ~ 1.5dB, it is great to optimize the degree of difficulty moreover, reduce the fan rotational speed then can influence the heat transfer, reduce the air conditioner efficiency, be unfavorable for environmental protection and energy saving.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide an outdoor unit of an air conditioner, which can effectively reduce fan noise without reducing air conditioning energy efficiency.

The purpose of the application is realized by the following technical scheme:

an outdoor unit of an air conditioner, comprising:

the front side of the box body is provided with an air duct outlet;

the fan is arranged in the box body at a position corresponding to the air duct outlet; and

the grille is installed in the air duct outlet, be equipped with a plurality of mutual independence on the grille and run through in the wind-guiding passageway of the preceding, rear end face of grille, each the surface of wind-guiding passageway all is equipped with the sound-absorbing layer.

In some embodiments, the sound absorption layer is made of any one of a metal foam, a plastic foam, or a polyurethane foam.

In some embodiments of the present application, the sound absorption layer is integrally formed and integrally formed into a sound absorption member, and the grille is embedded in the sound absorption member.

In some embodiments of the present application, a containing groove is formed in a front end face of the sound absorbing member, and the grille is embedded in the containing groove.

In some embodiments of the present application, the grid comprises:

the shape of the outer ring is matched with the air duct outlet, and an air flow channel is arranged in the outer ring; and

the air flow channel is divided into a plurality of air guide channels by the plurality of partition plates;

the accommodating groove comprises a plurality of clamping grooves which correspond to the partition plates one to one, and two ends of each clamping groove penetrate through the outer peripheral wall of the sound absorption piece;

the outer ring is arranged around the periphery of the sound absorption piece, and the plurality of clapboards are embedded in the clamping grooves in a one-to-one correspondence mode.

In some embodiments of the present application, the plurality of baffles comprises:

the first partition plates extend along the horizontal direction, and are at least sequentially connected into the outer ring at intervals from top to bottom; and

and the second partition plates extend along the vertical direction and are arranged in a crossed manner with the first partition plates, and the second partition plates are sequentially connected into the outer ring from left to right at intervals.

In some embodiments of the present application, the thickness of the wall of the grid is 1 mm to 5 mm.

In some embodiments of the present application, a cross-sectional area of the air guide channel is S, a circumference of a cross section of the air guide channel is P, an equivalent diameter of the air guide channel is De, and an extension length of the air guide channel in a front-back direction is L, where: d_e4S/P, and De: l is less than or equal to 4.

In some embodiments of this application, follow on the box the interior week of wind channel export is equipped with the wind channel circle, the periphery wall of grid with the cooperation of the interior perisporium wall of wind channel circle links to each other.

In some embodiments of the present application, the outdoor unit of an air conditioner further includes:

the fan cover is hollow and is arranged on the box body and correspondingly arranged on the front side of the grating.

The utility model provides an air condensing units is equipped with the grid in the wind channel exit of box front side, inject in the grid and be formed with a plurality of mutually independent wind-guiding passageways to all set up the sound-absorbing layer in order to realize hindering nature amortization respectively on the surface of each wind-guiding passageway, simple structure, and the windage is little, amortization frequency bandwidth broad, and noise reduction is effectual, can obviously reduce the wind channel noise.

Drawings

The present application is described in further detail below in connection with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is an assembled view of an outdoor unit of an air conditioner according to an embodiment of the present application;

fig. 2 is an exploded view of the outdoor unit of the air conditioner of fig. 1;

fig. 3 is a schematic view illustrating the assembly between a grill and sound absorption layers in the outdoor unit of the air conditioner of fig. 1;

FIG. 4 is a schematic longitudinal cross-sectional view of FIG. 3;

fig. 5 is an exploded view of a grill and sound absorption layers in the outdoor unit of the air conditioner of fig. 1.

In the figure, 1, a box body; 11. an air duct outlet; 12. an air duct ring; 2. a fan; 3. a grid; 31. an air guide channel; 32. an outer ring; 321. an air flow channel; 33. a partition plate; 331. a first separator; 332. a second separator; 4. a sound absorbing member; 41. a sound absorbing layer; 42. a containing groove; 421. a card slot; 5. a fan cover.

Detailed Description

Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the application.

First, it should be noted that the orientations of top, bottom, upward, downward, and the like referred to herein are defined with respect to the orientation in the respective drawings, are relative concepts, and thus can be changed according to different positions and different practical states in which they are located. These and other orientations, therefore, should not be used in a limiting sense.

It should be noted that the term "comprising" does not exclude other elements or steps and the "a" or "an" does not exclude a plurality.

Furthermore, it should be further noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application not directly mentioned herein.

It will be further understood that the terms "first," "second," and the like, are used herein to describe various information and should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application.

It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.

The air conditioner performs a refrigeration cycle of the air conditioner by using 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 supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in 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 liquid-phase refrigerant in a high-temperature and high-pressure state 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 of a refrigeration cycle including a compressor and 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. The air conditioner is used as a heater in a heating mode when the indoor heat exchanger is used as a condenser, and as a cooler in a cooling mode when the indoor heat exchanger is used as an evaporator.

Referring to fig. 1 to 5, an embodiment of the present application provides an outdoor unit of an air conditioner, which is installed in an outdoor space.

The outdoor unit of an air conditioner of the present embodiment includes: box 1, fan 2 and grid 3, the front side of box 1 is opened and is equipped with wind channel export 11, and fan 2 installs in box 1 and is corresponding to the position department of wind channel export 11, and grid 3 installs in wind channel export 11, is equipped with a plurality of mutual independence and along the wind-guiding passageway 31 of fore-and-aft direction extension on the grid 3, and the surface of each wind-guiding passageway 31 all is equipped with sound-absorbing layer 41.

The grid 3 includes: an outer ring 32 and a plurality of partition plates 33; the shape of outer ring 32 is adapted to the shape of air duct outlet 11, partition 33 is located in outer ring 32, two ends of partition 33 are connected to the inner peripheral wall of outer ring 32, and several partitions 33 divide air flow channel 321 into several air guiding channels 31.

According to the design principle of the resistive silencer, the calculation formula of the silencing volume TL is as follows:

in the formula: α is the sound absorption coefficient of the resistive material, L is the length of the airflow channel 321, P is the circumference of the cross-section of the airflow channel 321, and S is the cross-sectional area of the airflow channel 321;

as can be seen from the above formula, under the condition of a certain sound absorption coefficient, the sound deadening amount of the resistive sound deadening is in direct proportion to the length of the air flow passage 321 and the circumference of the cross section thereof, and is in inverse proportion to the sectional area of the air flow passage 321; therefore, under the condition that the length of the silencer pipeline is limited, the whole air flow channel 321 is divided into a plurality of mutually independent small air guide channels 31, the surface of each air guide channel 31 is provided with the sound absorption layer 41 to realize resistance silencing respectively, the structure is simple, the wind resistance is small, the silencing frequency band is wide, the noise reduction effect is good, and the noise of the air duct can be obviously reduced.

In some embodiments of the present application, in order to achieve a better sound-absorbing effect, the sound-absorbing layer 41 is made of a porous material; specifically, the material of the sound absorption layer 41 includes any one of a metal foam, a plastic foam, or a polyurethane foam.

In addition, the sound absorption layers 41 are integrally formed, and a mold is usually adopted to foam the sound absorption material into an integral structure, that is, the sound absorption layers 41 are integrally formed into the sound absorption member 4, as shown in fig. 5, then the grille 3 is embedded in the sound absorption member 4, and the grille 3 and the sound absorption member 4 are assembled together and then are installed on the box body 1, so that the manufacturing and the assembling can be simplified.

In some embodiments, the front end surface of the sound absorbing member 4 is provided with a receiving groove 42, and the grille 3 is embedded in the receiving groove 42 from the front side, as shown in fig. 5.

Referring to fig. 3 to 5, the accommodating groove 42 includes a plurality of slots 421, two ends of each slot 421 penetrate through the outer peripheral wall of the sound absorbing member 4, and two opposite sides of each slot 421 are the sound absorbing layers 41; in order to make be convenient for with grid 3 with the assembly of sound absorbing member 4, and guarantee the reliable and stable nature of assembly between grid 3 and the sound absorbing member 4 to guarantee the sound absorbing effect, a plurality of baffles 33 one-to-one are inlayed and are located in each draw-in groove 421, and outer lane 32 encloses the periphery of locating sound absorbing member 4, thereby realize closely linking to each other with sound absorbing member 4.

In this embodiment, the plurality of partition boards 33 includes two types: a first partition 331 and a second partition 332; the first partition boards 331 extend along the horizontal direction, each first partition board 331 is connected to the inside of the outer ring 32 at intervals from the top at least in sequence, the second partition boards 332 extend along the vertical direction and are connected with the first partition boards 331 in a cross mode, and each second partition board 332 is connected to the inside of the outer ring 32 at intervals from the left to the right in sequence; each of the slots 421 is disposed corresponding to the first partition 331 and the second partition 332, and is in cross communication.

For example, the cross-sectional shape of the air guiding channel 31 in the embodiment of the present application may be a circle, a square, or another shape.

As shown in fig. 4, the thickness of the grill 3 in the embodiment of the present application is set to 1 mm to 5 mm, which can achieve a preferable air-guiding and noise-reducing effect.

Specifically, as shown in fig. 4, the cross-sectional area of the air guiding passage 31 is S, the circumference of the cross section of the air guiding passage 31 is P, the equivalent diameter of the air guiding passage 31 is De, and the extension length of the air guiding passage 31 in the front-rear direction is L, where: d_e4S/P, and De: l is less than or equal to 4; in general, De: the smaller the ratio of L, the larger the amount of noise reduction.

In order to install the grating 3 conveniently and realize the diversion effect, an air duct ring 12 is arranged on the box body 1 along the inner periphery of the air duct outlet 11, and the outer peripheral wall of the grating 3 is connected with the inner peripheral wall of the air duct ring 12 in a matched mode.

As shown in fig. 1 and 2, the outdoor unit of an air conditioner according to the embodiment of the present invention further includes a fan cover 5, the fan cover 5 is hollow, and the fan cover 5 is installed on the casing 1 and is correspondingly disposed at the front side of the grille 3, so as to prevent foreign matters from entering the casing 1 through the air guiding passage 31 of the grille 3.

In summary, the outdoor unit of the air conditioner of the present application, the whole airflow channel 321 in the grille is divided into the plurality of mutually independent small air guiding channels 31, and the sound absorbing layer 41 is disposed on the surface of each air guiding channel 31 to respectively realize resistive silencing, so that the outdoor unit of the air conditioner has the advantages of simple structure, small wind resistance, wide silencing frequency band, good noise reduction effect, and capability of obviously reducing the noise in the air duct.

This written description discloses the application with reference to the drawings, and also enables one skilled in the art to practice the application, including making and using any devices or systems, using suitable materials, and using any incorporated methods. The scope of the present application is defined by the claims and includes other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of the claims as long as they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

1. An outdoor unit of an air conditioner, comprising:

the front side of the box body is provided with an air duct outlet;

2. The outdoor unit of claim 1, wherein the sound absorption layer is made of any one of a metal foam, a plastic foam, and a polyurethane foam.

3. The outdoor unit of claim 1, wherein a plurality of the sound absorption layers are integrally formed and integrally formed as a sound absorption member, and the grill is embedded in the sound absorption member.

4. The outdoor unit of claim 3, wherein the sound absorbing member has a receiving groove formed in a front surface thereof, and the grille is fitted in the receiving groove.

5. The outdoor unit of claim 4, wherein the louver comprises:

6. The outdoor unit of claim 5, wherein the plurality of partitions comprises:

7. The outdoor unit of claim 1, wherein the thickness of the louver is 1 mm to 5 mm.

8. The outdoor unit of claim 1, wherein the air guide passage has a cross-sectional area S, a cross-sectional circumference P, an equivalent diameter De, and a length L extending in a front-rear direction, and wherein: d_e4S/P, and De: l is less than or equal to 4.

9. The outdoor unit of claim 1, wherein an air duct ring is formed on the casing along an inner circumference of the air duct outlet, and an outer circumferential wall of the grill is coupled to an inner circumferential wall of the air duct ring.

10. The outdoor unit of any one of claims 1 to 9, further comprising: