CN112229053A

CN112229053A - Silencer structure and air conditioner with same

Info

Publication number: CN112229053A
Application number: CN202011310998.7A
Authority: CN
Inventors: 杨俊涛; 高智强; 陈志伟; 夏增强; 程诗; 吴梦芸
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-01-15

Abstract

The invention relates to the technical field of air conditioners, in particular to a silencer structure and an air conditioner with the same, wherein the silencer structure comprises: the noise elimination device comprises a first pipeline and a second pipeline which are communicated with each other, wherein the second pipeline is set as a bypass branch pipe of the first pipeline, and two ends of the second pipeline are communicated with the first pipeline, wherein the difference value between the length of the second pipeline and the length of two ends of the second pipeline on the first pipeline is an odd integer multiple of half wavelength of the noise to be eliminated, firstly, the noise to be eliminated enters the first pipeline through an inlet, then, the noise to be eliminated is divided into two parts, one part of the noise to be eliminated continuously flows to an outlet in the first pipeline, the other part of the noise to be eliminated enters the second pipeline until the noise to be eliminated is converged at the intersection of the first pipeline and the second pipeline, at the moment, the two parts of the noise to be eliminated are opposite in phase, so that the two parts of the noise to be eliminated are mutually counteracted, and finally, the noise elimination effect is achieved.

Description

Silencer structure and air conditioner with same

Technical Field

The invention relates to the technical field of air conditioners, in particular to a silencer structure and an air conditioner with the same.

Background

In the operation process of the air conditioner, the discontinuous flow of the refrigerant in the pipeline system can generate pulsation noise, so that the indoor noise is too large, and the user experience is influenced. Therefore, installing a silencer in the piping system can effectively reduce such pulsation noise; however, researches show that the silencer in the prior art is generally poor in silencing effect and cannot meet the requirements of users.

Disclosure of Invention

An object of the application is to provide a muffler structure and have its air conditioner to solve the relatively poor problem of noise cancelling effect among the prior art.

Technical scheme (I)

To achieve the above object, a first aspect of the present invention provides a muffler structure comprising: the second pipeline is set as a bypass branch pipe of the first pipeline, and two ends of the second pipeline are communicated with the first pipeline, wherein the difference value between the length of the second pipeline and the length of the two ends of the second pipeline on the first pipeline is an odd integer multiple of the half wavelength of the noise to be eliminated.

Optionally, the pipe diameter of the first pipeline is the same as the pipe diameter of the second pipeline.

Optionally, the second pipeline includes: the two second branch pipes are parallel to each other and communicated with the first pipeline, and two ends of the first branch pipe are connected with the two second branch pipes through telescopic structures respectively.

Optionally, the two second branch pipes have the same structure.

Optionally, the retractable structure includes: the adjustable connecting part is arranged on the second branch pipe, and the second branch pipe is connected with the first branch pipe through the adjustable connecting part.

Optionally, the retractable structure further comprises a sealing ring, and the sealing ring is sleeved on the adjustable connecting portion.

Optionally, a groove is formed in the circumferential direction of the adjustable connecting portion, and the sealing ring is mounted in the groove.

Optionally, the adjustable connection portion is configured as a reduced-diameter structure or a flared-diameter structure.

Optionally, the telescopic structure is an annular corrugated pipe, one end of the annular corrugated pipe is connected with the first branch pipe, and the other end of the annular corrugated pipe is connected with the second branch pipe.

To achieve the above object, a second aspect of the present invention provides an air conditioner comprising: refrigerant pipeline and as in any one of the preceding claims, the muffler structure is installed in the refrigerant pipeline.

(II) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a silencer structure and an air conditioner with the same, comprising: a first pipeline and a second pipeline which are communicated with each other, wherein the second pipeline is a bypass branch pipe of the first pipeline, and both ends of the second pipeline are communicated with the first pipeline, wherein, the difference value between the length of the second pipeline and the length of the two ends of the second pipeline on the first pipeline is an odd integer multiple of the half wavelength of the noise to be eliminated, the noise to be cancelled first enters the first pipe via the inlet, after which the noise to be cancelled is divided into two parts, one part of the noise to be eliminated continuously flows to the outlet in the first pipeline, and the other part of the noise to be eliminated enters the second pipeline until the noise to be eliminated is converged with the other part of the noise to be eliminated at the intersection of the first pipeline and the second pipeline, and at the moment, because the phases of the two parts of the noise to be eliminated are opposite, the two parts of the noise to be eliminated are mutually counteracted, and finally, the silencing effect is achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for a person skilled in the art that other drawings can be obtained according to the drawings without inventive exercise, wherein:

FIG. 1 is a schematic structural view of a silencer structure according to the present invention;

FIG. 2 is a cross-sectional view of a muffler structure according to the present invention;

FIG. 3 is a schematic diagram of an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at position A;

FIG. 5 is a schematic structural diagram of another embodiment of the collapsible structure of the present invention;

FIG. 6 is a schematic view of the flow of sound waves in the muffler structure to be noise-cancelled in the present invention;

fig. 7 is a schematic diagram of the acoustic interference silencing principle of the present invention.

In the figure: 1. a first pipeline; 2. a second pipeline; 3. a first branch pipe; 4. a second branch pipe; 5. an adjustable connection; 6. a seal ring; 7. an annular bellows.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention is described in further detail below with reference to the following figures and detailed description:

in order to solve the problem of poor silencing effect in the prior art, as shown in fig. 1 to 7, a first aspect of the present application provides a silencer structure, including: the noise elimination device comprises a first pipeline 1 and a second pipeline 2 which are communicated with each other, wherein the second pipeline 2 is set to be a bypass branch of the first pipeline 1, and two ends of the second pipeline 2 are both communicated with the first pipeline 1, wherein the length of the second pipeline 2 is set to be L1, the length of two ends of the second pipeline 2 on the first pipeline 1 is set to be L2, as shown in FIG. 2, the length is the distance between the point A and the point B, in order to ensure that the phases of noise to be eliminated of the two parts are opposite, the difference value between L1 and L2 needs to be an odd integer multiple of half-wave length of the noise to be eliminated, exemplarily, 1 time, 3 times and the like can be selected, and preferably, the pipe diameter of the first pipeline 1 is the same as that of the second pipeline 2.

In use, as shown in fig. 2, the arrow direction in the figure is the noise flow direction, specifically, firstly, the noise to be eliminated enters the first pipeline 1 through the inlet, then the noise to be eliminated is divided into two parts, wherein one part of the noise to be eliminated will continue to flow in the first pipeline 1 to the outlet, and the other part of the noise to be eliminated will enter the second pipeline 2 until the noise to be eliminated joins with the other part of the noise to be eliminated at the intersection of the first pipeline 1 and the second pipeline 2, at this time, as shown in fig. 6, the noise wavelength flow direction is shown in the figure, and since the phases of the two parts of the noise to be eliminated are opposite, the two parts of the noise to be eliminated cancel each other, and finally, the noise elimination effect is achieved.

Specifically, the sound source wavelength interference principle is utilized in the present application to perform a cancellation effect on a specific noise frequency, that is, sound waves with the same frequency and opposite phases (different by 180 °) are added and cancelled to achieve a noise elimination purpose, and a schematic diagram of the sound wave interference cancellation principle is shown in fig. 7, wherein in the diagram, a thin solid line is a phase-0 ° wave, a dotted line is a phase-180 ° wave, and a thick solid line is an interference rear wave.

According to an embodiment of the present invention, in order to more precisely ensure that the two sound waves have opposite phases, they can cancel each other out, as shown in fig. 3, 4 and 5, the second pipeline 2 includes: the pipeline comprises a first branch pipe 3 and two second branch pipes 4, preferably, the two second branch pipes 4 are the same in structure, the two second branch pipes 4 are parallel to each other and are communicated with a first pipeline 1, and two ends of the first branch pipe 3 are connected with the two second branch pipes 4 through a telescopic structure respectively;

when the device is used, firstly, the wavelength of noise to be eliminated is measured at the inlet of the first pipeline 1, if the difference value between the current L1 and the current L2 is not odd integer times of half wavelength of the noise to be eliminated, at the moment, the first branch pipe 3 is only required to be driven to move towards the direction close to or away from the second branch pipe 4, so that the length (L1) of the second pipeline 2 is adjusted, the difference value between the L1 and the L2 is ensured to be odd integer times of half wavelength of the noise to be eliminated, the two parts of sound waves are opposite in phase, and the noise wavelength is counteracted to the greatest extent and most accurately.

In one embodiment, as shown in fig. 3, the retractable structure includes: set up adjustable connecting portion 5 on second branch pipe 4, it is preferred, second branch pipe 4 is connected with first branch pipe 3 through adjustable connecting portion 5, through driving first branch pipe 3 to the direction motion of being close to or keeping away from second branch pipe 4 to drive the direction motion that first branch pipe 3 inserted or extracted adjustable connecting portion 5, thereby realize adjusting length (L1) of second pipeline 2.

According to an embodiment of the present invention, in order to position the first branch pipe 3, as shown in fig. 4, the retractable structure further includes a sealing ring 6, the sealing ring 6 is sleeved on the adjustable connection portion 5, when the first branch pipe 3 is inserted into or pulled out of the adjustable connection portion 5, the sealing ring 6 is designed to increase a friction force between an inner wall surface of the first branch pipe 3 and an outer wall surface of the adjustable connection portion 5, so that the first branch pipe 3 can be positioned at any position in a movement process, and an adjustment effect is ensured.

According to an embodiment of the present invention, in order to ensure that the sealing ring 6 is stably sleeved on the outer wall surface of the adjustable connecting portion 5 and does not move under the action of external force, a groove is formed in the circumferential direction of the adjustable connecting portion 5, and the sealing ring 6 is installed in the groove.

According to an embodiment of the present invention, the adjustable connection portion 5 is configured to be a necking structure or a flaring structure, specifically, in this embodiment, as shown in fig. 3, the adjustable connection portion 5 is configured to be a necking structure, that is, the first branch pipe 3 is sleeved on an outer wall surface of the adjustable connection portion 5, but of course, the adjustable connection portion 5 may also be configured to be a flaring structure, that is, the adjustable connection portion 5 is sleeved on an outer wall surface of the first branch pipe 3.

Wherein another embodiment, but extending structure can also set up to the annular bellows, the one end of annular bellows is connected with first branch pipe 3, the other end is connected with second branch pipe 4, when the length of second pipeline 2 is adjusted to needs, only need drive second pipeline 2 to compression or tensile annular bellows direction motion can, of course, but extending structure in this scheme is not limited to above-mentioned two kinds of implementation, for example, can also adopt and set up the slide rail at the outer wall of second branch pipe 4, the protruding arch of establishing of the internal face at first branch pipe 3, carry out relative motion in the slide rail through the arch, thereby realize the regulation to 2 lengths of second pipeline, as long as can realize carrying out the structure of adjusting to 2 lengths of second pipeline and all be applicable to this application, all belong to in the protection scope of this application.

A second aspect of the present application provides an air conditioner comprising: refrigerant pipeline and as in any one of the preceding muffler structure, the muffler structure is installed in the refrigerant pipeline, and the noise that produces in the cold interior pipeline gets into the muffler structure through the entry of first pipeline 1, after carrying out noise elimination in the muffler structure, then flows out through the export of first pipeline 1.

The embodiments in the present description are all described in a progressive manner, and some of the embodiments are mainly described as different from other embodiments, and the same and similar parts among the embodiments can be referred to each other.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, a particular component geometry.

In the description of the present invention, it should 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; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A muffler structure, comprising: the noise elimination device comprises a first pipeline (1) and a second pipeline (2) which are communicated with each other, wherein the second pipeline (2) is arranged as a bypass branch pipe of the first pipeline (1), two ends of the second pipeline (2) are communicated with the first pipeline (1), and the difference value between the length of the second pipeline (2) and the length of the two ends of the second pipeline (2) on the first pipeline (1) is an odd integer multiple of the half wavelength of the noise to be eliminated.

2. A silencer structure according to claim 1, characterized in that the pipe diameter of the first pipe (1) is the same as the pipe diameter of the second pipe (2).

3. A silencer structure according to claim 1, characterized in that the second pipe (2) comprises: first branch pipe (3) and two second branch pipes (4), two second branch pipe (4) be parallel to each other and all with first pipeline (1) is linked together, but the both ends of first branch pipe (3) are respectively through extending structure and two second branch pipe (4) are connected.

4. A silencer structure according to claim 3, characterized in that the two second branch pipes (4) are identical in structure.

5. The silencer structure of claim 3, wherein the collapsible structure comprises: the adjustable connecting portion (5) is arranged on the second branch pipe (4), and the second branch pipe (4) is connected with the first branch pipe (3) through the adjustable connecting portion (5).

6. A silencer structure according to claim 5, characterized in that the telescopic structure further comprises a sealing ring (6), the sealing ring (6) being fitted over the adjustable connection (5).

7. A silencer structure according to claim 6, characterized in that the adjustable connection portion (5) is provided with a groove in the circumferential direction, in which groove the sealing ring (6) is mounted.

8. A silencer structure according to claim 5, characterized in that the adjustable connection (5) is arranged as a throat-like structure or as a flare-like structure.

9. A silencer structure according to claim 3, characterized in that the telescopic structure is provided as an annular bellows, which is connected at one end to the first branch pipe (3) and at the other end to the second branch pipe (4).

10. An air conditioner, comprising: a refrigerant line and a silencer structure as claimed in any of claims 1 to 9, the silencer structure being mounted to the refrigerant line.