CN213480567U - Silencer and air conditioner - Google Patents
Silencer and air conditioner Download PDFInfo
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- CN213480567U CN213480567U CN202022322124.5U CN202022322124U CN213480567U CN 213480567 U CN213480567 U CN 213480567U CN 202022322124 U CN202022322124 U CN 202022322124U CN 213480567 U CN213480567 U CN 213480567U
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Abstract
The utility model relates to an air conditioner technical field, the application discloses muffler and air conditioner, including barrel and first straight tube, first straight tube and the first end swing joint of barrel, the one end of first straight tube can insert the barrel inside and can follow the axis direction regulation inserted part's of barrel length. The utility model provides a through adjusting first straight tube and insert the barrel internal length and change the biggest noise elimination frequency position, therefore can change the problem of the periodic passing frequency of muffler, change the noise elimination performance of muffler on a large scale, improve the application range of device.
Description
Technical Field
The application relates to the technical field of air conditioners in general, and particularly relates to a silencer and an air conditioner.
Background
The pressure of the refrigerant is changed by the periodic discharge action of the compressor to generate pressure pulsation, and the pressure pulsation is transmitted from the compressor along the pipeline.
The noise problem is solved by adopting a silencer, the silencing quantity of the silencer can meet the requirement in many times, but the maximum silencing frequency is not in the required range, so that transmission sound is generated. The general solution is to continue to increase the number of silencers, and this method not only increases the cost of the external unit, but also brings about the problem of excessive pipeline stress caused by excessive pipeline weight of the external unit. In the development process of the external unit, the noise elimination requirements of different types of units are different, so that the number of the units in the silencer library is particularly large, and the model selection in the development process is difficult. In the prior art, the internal structure of the silencer is mostly changed, sound-absorbing materials are added to increase small volume, and the adjustment of the sound-absorbing frequency is not optimized.
The prior patent of invention with an authorization publication number of CN109210755A discloses a silencer for air conditioner and an air conditioner, wherein the silencer for air conditioner comprises: the device comprises a barrel, two inner baffles and two air pipes, wherein two ends of the barrel are contracted; two inner baffles are arranged in the cylinder at intervals and divide the cylinder into three cavities which are arranged in sequence, each inner baffle is provided with an insertion hole,
by adopting the technical scheme, the airflow enters the sound absorption cavity through the first through hole on the air pipe, so that high-frequency noise is reduced; the airflow enters the Helmholtz resonance cavity through the second through hole on the air pipe to resonate and eliminate the noise; the airflow enters the expansion cavity to expand and eliminate noise. However, since the inner partition plate is fixedly installed in the cylinder, the position of the maximum muffling frequency cannot be adjusted after the muffler structure in the above technical scheme is fixed.
SUMMERY OF THE UTILITY MODEL
The main purpose of the present application is to overcome the problems of the prior art that the maximum frequency position cannot be adjusted, the types of the mufflers are various, and the type selection is difficult, and to provide a muffler and an air conditioner.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
the application provides a silencer, including barrel and first straight tube, first straight tube with the first end swing joint of barrel, the one end of first straight tube can insert the barrel is inside and can follow the length of inserted part is adjusted to the axis direction of barrel.
According to an embodiment of the present application, wherein the first end of the cylinder is provided with a first through pipe, and the first straight pipe is movably matched with the first through pipe.
According to an embodiment of the present application, the first straight pipe is screwed with the first through pipe.
According to an embodiment of the present application, wherein the first straight pipe is provided with an external thread, and the first through pipe is provided with an internal thread matching with the external thread.
According to an embodiment of the application, wherein still include the second straight tube, the second straight tube with the second end swing joint of barrel, the one end of second straight tube can insert inside the barrel and can follow the length of the axis direction regulation inserted part of barrel.
According to an embodiment of the present application, wherein the second end of the cylinder is provided with a second through pipe, and the second straight pipe is movably matched with the second through pipe.
According to an embodiment of the present application, the second tube is screwed to the second straight tube.
According to an embodiment of the present application, the second straight pipe is provided with an external thread, and the second through pipe is provided with an internal thread matching with the external thread.
According to an embodiment of the application, wherein the diameter of the first through tube is smaller than the cylinder diameter.
According to another aspect of the present application, an air conditioner includes the silencer of any one of the above.
According to the technical scheme, the silencer and the air conditioner have the advantages and positive effects that: the passing frequency is eliminated by adjusting the depth of the first straight pipe inserted into the cylinder, and the silencing performance of the silencer is changed in a large range; and all silencers of this type can be replaced at the same expansion ratio. The position of the maximum noise elimination frequency is convenient to change, and meanwhile, the application range of the device is wider.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic view illustrating an overall structure of a muffler and an air conditioner according to an exemplary embodiment.
Fig. 2 is a sectional view illustrating an initial state of insertion of a first straight pipe of a muffler and an air conditioner according to an exemplary embodiment.
Fig. 3 is a sectional view illustrating a state where an insertion length of a first straight pipe of a muffler and an air conditioner is maximized, according to an exemplary embodiment.
FIG. 4 is a graph illustrating the variation of different insertion depths and the amount of sound absorption for a first straight tube of a muffler and an air conditioner according to an exemplary embodiment.
Fig. 5 is a sectional view mainly embodying lower male and female screws in a muffler and an air conditioner according to an exemplary embodiment.
Wherein the reference numerals are as follows:
1. a barrel; 2. a first through pipe; 3. a second pipe; 4. a first straight pipe; 5. a second straight pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all 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.
Example one
Referring to fig. 1, an embodiment of the present application provides a silencer and an air conditioner, including: barrel 1 and first straight tube 4, barrel 1 length direction both sides are the first end of barrel 1 and the second end of barrel 1 respectively. One end of the first straight tube 4 can be inserted into the cylinder 1 and the length of the inserted part can be adjusted along the axial direction of the cylinder 1.
Referring to fig. 1, the vertical direction of the cylinder 1, that is, the longitudinal direction of the cylinder 1 is the axial direction of the cylinder 1. In operation, the vertical position of the first straight pipe 4 can be adjusted, so that the depth of the first straight pipe 4 inserted into the cylinder 1 can be changed. Therefore, the problem of the periodic passing frequency of the expansion silencer can be changed, the passing frequency can be eliminated by adjusting the length of the first straight pipe 4, and the silencing performance of the silencer can be changed in a wide range.
Be equipped with first siphunculus 2 and second siphunculus 3 on barrel 1, the through-hole cylinder shape setting that first siphunculus 2 and second siphunculus 3 all run through from top to bottom, first siphunculus 2 and second siphunculus 3 set up respectively in the first end of barrel 1 and the second end of barrel 1.
The first through pipe 2 and the second through pipe 3 may be welded to the cylinder 1 or integrally formed with the cylinder 1. First straight tube 4 activity sets up in first siphunculus 2, through the cooperation between first siphunculus 2 and the first straight tube 4, makes things convenient for the installation of first straight tube 4 and improves the stability that first straight tube 4 connects.
In order to save cost, since the insertion pipe muffler is not directional, the length of the first straight pipe 4 may be set to 1/2 which is not less than the length of the cylinder 1. By this arrangement, it is possible to achieve a change in the insertion depth of the first straight tube 4, thereby achieving the objective of eliminating part of the passing frequency.
Meanwhile, the cylinder body 1 is usually made of carbon steel or stainless steel, and both the carbon steel and the stainless steel are opaque materials, so that the depth of the first straight pipe 4 inserted into the cylinder body 1 cannot be visually seen. The length of the first straight pipe 4 is selected to be suitable for knowing the depth of the first straight pipe 4 inserted into the cylinder 1. At this time, it is preferable that the length of the first straight tube 4 is 1/2 slightly greater than the length of the cylinder 1, in which case, it is possible to achieve the cost saving effect while facilitating the observation of the depth of the first straight tube 4 inserted into the cylinder 1.
The diameters of the end parts of the first through pipe 2 and the second through pipe 3 are smaller than the diameter of the cylinder body 1, and the purpose of silencing is achieved by utilizing sound reflection and interference caused by expansion and contraction of the cross sections of the end parts.
The second straight pipe 5 is connected in the second through pipe 3, the second straight pipe 5 can be welded or arranged in the second through pipe 3 in other fixing modes, and the second straight pipe 5 is communicated with the cylinder 1. The first straight pipe 4 and the second straight pipe 5 are respectively communicated with an external pipeline, so that the installation is convenient.
Wherein, insert first straight tube 4 in first siphunculus 2, insert second straight tube 5 in the second siphunculus 3, not only can conveniently install first straight tube 4 and second straight tube 5 on the muffler like this, can improve the stability of first straight tube 4 and second straight tube 5 on the muffler moreover.
In one embodiment, the connection between the first straight tube 4 and the first through tube 2 may be a screw connection, a snap connection, or a screw stop. Comprises all technical modes that the first straight pipe 4 can be movably arranged in the first through pipe 2 up and down.
According to the prior art, when the above-mentioned snap connection is used, the first straight pipe 4 and the first through pipe 2 are in up-and-down sliding fit through a sliding groove or a sliding rail. When the depth of the first straight pipe 4 inserted into the cylinder body 1 needs to be adjusted, the buckle clamping device is loosened, a worker pushes the first straight pipe 4 downwards, and the depth of the first straight pipe 4 inserted into the cylinder body 1 is increased; the worker pulls the first straight pipe 4 upwards to reduce the depth of the first straight pipe 4 inserted into the cylinder. After the first straight pipe 4 is adjusted to a required position, the clamping device of the buckle is locked, and the position of the first straight pipe 4 is fixed.
When the first straight pipe 4 and the first through pipe 2 are limited by screws, namely, the screws are in threaded connection with the peripheral side of the first through pipe 2, and the bottom of each screw is abutted against the outer wall of the first straight pipe 4. At this time, the first straight pipe 4 is in up-and-down sliding fit with the first through pipe 2. When the depth of the first straight pipe 4 inserted into the cylinder body 1 needs to be adjusted, the screw is rotated clockwise, so that the bottom of the screw is loosened from the first straight pipe 4, and when a worker pushes the first straight pipe 4 downwards, the depth of the first straight pipe 4 inserted into the cylinder body 1 is increased; when the worker pulls the first straight pipe 4 upwards, the depth of the first straight pipe 4 inserted into the barrel 1 is reduced. After the first straight pipe 4 is adjusted to a required position, the screw is rotated anticlockwise to enable the bottom of the screw to be tightly abutted against the outer side wall of the first straight pipe 4, and therefore the position of the first straight pipe 4 is fixed.
Foretell buckle is connected and the spacing connected mode of screw, because the cooperation of sliding between first straight tube 4 and the first siphunculus 2, when the degree of depth that needs adjust first straight tube 4 and insert barrel 1, need the staff to stimulate first straight tube 4 from top to bottom, can't carry out the small regulation of the depth of insertion of first straight tube 4 through artificial mode, it is less to adjust the precision.
Therefore, the first straight pipe 4 and the first through pipe 2 are preferably screwed together in this application.
The sound absorber will be described below with reference to fig. 2 and 3 by taking the connection manner between the first straight tube 4 and the first through tube 2 as a screw fitting as an example.
In one embodiment, the outer side of the first straight pipe 4 may be integrally formed with an external thread, and the thread direction of the external thread is the same as the moving direction of the first straight pipe 4. The inside wall shaping of first siphunculus 2 has the internal thread with external screw thread looks adaptation.
During work, when a worker rotates the first straight pipe 4 clockwise, under the matching of the internal thread and the external thread, the depth of the first straight pipe 4 inserted into the barrel 1 is gradually increased, and the optimal noise elimination frequency moves to low frequency. When the worker rotates the first straight pipe 4 counterclockwise, the depth of the first straight pipe 4 inserted into the cylinder 1 is gradually reduced under the matching of the internal thread and the external thread, and the optimal sound attenuation frequency moves to high frequency.
Referring to fig. 2, when the first straight pipe 4 is in the initial state, there is no insertion depth between the first straight pipe 4 and the cylinder 1, and at this time, the muffler is a single expansion chamber muffler, and there is no insertion pipe muffler characteristic, and the first straight pipe 4 can be used as a general pipeline structure.
FIG. 4 is a graph illustrating the variation of different insertion depths and the amount of sound absorption for a first straight tube of a muffler and an air conditioner according to an exemplary embodiment. In the figure, a represents a change curve when the first straight pipe 4 is not inserted into the cylinder 1; b shows the change curve of the first straight pipe 4 inserted into 1/4 with the depth of the cylinder 1; in the figure, c represents a change curve of the first straight pipe 4 inserted to a depth of 1/2 of the cylinder 1.
Referring to fig. 2 and 4, when the first straight pipe 4 is in the initial state, the amount of sound deadening of the muffler changes periodically with a change in frequency. Thus, there is a problem of periodic passing frequencies, i.e. transmission loss curves with wave troughs, where the silencer may periodically leak sound waves of certain frequencies, so that these sound waves are transmitted without being attenuated.
When the first straight pipe 4 is inserted into the cylinder 1, the silencing amount is improved compared with that of the pipe without the insertion pipe, and the first peak is used as an optimal frequency table of the silencer.
Referring to fig. 4, when it is required to eliminate the partial passing frequency, the first straight pipe 4 is inserted into the cylinder 1 by rotating the first straight pipe 4, and the first straight pipe 4 is inserted into the cylinder 1 by an appropriate length according to the magnitude and position of the elimination frequency. As the insertion depth of the first straight tube 4 increases, the optimum muffling frequency shifts to a low frequency.
Because the first straight pipe 4 and the first through pipe 2 are in threaded fit, stability can be kept between the first straight pipe 4 and the first through pipe 2 under the condition that the first straight pipe 4 is not rotated. Meanwhile, in the process of rotating the first straight pipe 4, the depth of the first straight pipe 4 inserted into the cylinder body 1 is continuously changed, so that the insertion depth of the first straight pipe 4 can be accurately adjusted, and the adjustment precision is high.
The depth of insertion of the first straight pipe 4 into the cylindrical body 1 is continuously changed, and it is thus found that the maximum sound attenuation frequency of the muffler is located after the optimum sound attenuation frequency 1.
When the insertion depth of the first straight pipe 4 is between 1/4 and 1/2 of the length of the cylinder 1, the maximum sound attenuation frequency is shifted between the optimum sound attenuation frequency 1 and the optimum sound attenuation frequency 2, and therefore the insertion depth of the first straight pipe 4 into the cylinder 1 can be selected according to the specific sound attenuation frequency position.
Example two
Referring to fig. 5, embodiments of the present application may also be considered to provide a silencer and an air conditioner, mainly including:
the second straight pipe 5 is movably connected with the second end of the cylinder body 1, and one end of the second straight pipe 5 can be inserted into the cylinder body 1 and can adjust the length of the inserted part along the axial direction of the cylinder body 1. The up-down direction of the cylinder 1, that is, the length direction of the cylinder 1 is the axial direction of the cylinder 1.
In operation, the position of the second straight pipe 5 in the up-down direction can be adjusted, so that the depth of the second straight pipe 5 inserted into the cylinder 1 can be changed. Therefore, the problem of the periodic passing frequency of the expanding silencer can be changed, the length of the second straight pipe 5 is adjusted to eliminate some passing frequencies, and the silencing performance of the silencer can be changed in a wide range.
The activity of second straight tube 5 sets up in second siphunculus 3, through the cooperation between second siphunculus 3 and the second straight tube 5, makes things convenient for the installation of second straight tube 5 and improves the stability that second straight tube 5 connects.
The connection mode between the second straight pipe 5 and the second through pipe 3 can be screw connection, snap connection, screw limitation and the like. Including all technical ways that the second straight pipe 5 can be movably arranged in the second through pipe 3 up and down.
In one embodiment, the outer side of the second straight pipe 5 may be integrally formed with an external thread, and the thread direction of the external thread is consistent with the moving direction of the second straight pipe 5. The inside wall shaping of second siphunculus 3 has the internal thread with external screw thread looks adaptation.
During work, when a worker rotates the second straight pipe 5 clockwise, under the matching of the internal thread and the external thread, the depth of the second straight pipe 5 inserted into the cylinder body 1 is gradually increased, and the optimal noise elimination frequency moves towards low frequency. When the worker rotates the second straight pipe 5 anticlockwise, under the matching of the internal thread and the external thread, the depth of the second straight pipe 5 inserted into the cylinder body 1 is gradually reduced, and the optimal noise elimination frequency moves towards high frequency.
Because the insertion pipe silencer is non-directional, the effect achieved when the depth change of the first straight pipe 4 inserted into the cylinder 1 is adjusted independently is the same as the effect achieved when the depth change of the second straight pipe 5 inserted into the cylinder 1 is adjusted independently.
EXAMPLE III
Referring to fig. 5, the present embodiment may also be considered to provide a silencer and an air conditioner, including a first straight pipe 4 movably disposed in a first through pipe 2, and a second straight pipe 5 movably disposed in a second through pipe 3.
When the first straight pipe 4 is inserted into 1/2 with the depth being equal to the length of the cylinder body 1, the odd passing frequency can be eliminated; when the first straight pipe 4 is inserted into the 1/4 with the depth of the cylinder 1, the even number of passing frequencies can be eliminated.
Therefore, when the first straight pipe 4 is inserted into the tubular body 1 to 1/2 and the second straight pipe 5 is inserted into the tubular body 1 to 1/4, a preferable noise cancellation effect can be obtained. Since the insertion pipe silencer is non-directional, when the first straight pipe 4 is inserted into 1/4 with the length of the cylinder 1 and the second straight pipe 5 is inserted into 1/2 with the length of the cylinder 1, a preferable silencing effect can be obtained.
Example four
The air conditioner comprises a compressor, wherein the silencer for the air conditioner in any embodiment is arranged on a connecting pipeline of the compressor.
To sum up, the utility model provides an idle call muffler because of its idle call muffler that includes any embodiment of the aforesaid, therefore has the beneficial effect of the idle call muffler of any embodiment of the aforesaid, no longer gives unnecessary details here.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The silencer is characterized by comprising a cylinder body (1) and a first straight pipe (4), wherein the first straight pipe (4) is movably connected with the first end of the cylinder body (1), one end of the first straight pipe (4) can be inserted into the cylinder body (1) and can adjust the length of an inserted part along the axis direction of the cylinder body (1).
2. A silencer according to claim 1, characterized in that the first end of the cylinder (1) is provided with a first through pipe (2), and the first straight pipe (4) is movably fitted with the first through pipe (2).
3. A silencer according to claim 2, characterized in that the first straight pipe (4) is threaded with the first through pipe (2).
4. A silencer according to claim 3, characterized in that the first straight pipe (4) is provided with an external thread and the first through pipe (2) is provided with an internal thread matching the external thread.
5. A silencer according to claim 2, characterized by further comprising a second straight pipe (5), the second straight pipe (5) being movably connected with the second end of the cylinder (1), one end of the second straight pipe (5) being insertable into the cylinder (1) and the length of the inserted part being adjustable in the axial direction of the cylinder (1).
6. A silencer according to claim 5, characterized in that the second end of the cylinder (1) is provided with a second pipe (3), and the second straight pipe (5) is movably fitted with the second pipe (3).
7. A silencer according to claim 6, characterized in that the second pipe (3) is threaded with the second straight pipe (5).
8. A silencer according to claim 7, characterized in that the second straight pipe (5) is provided with an external thread and the second pipe (3) is provided with an internal thread matching the external thread.
9. A silencer according to claim 2, characterized in that the diameter of the first through pipe (2) is smaller than the diameter of the cylinder (1).
10. An air conditioner characterized by comprising the muffler as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022322124.5U CN213480567U (en) | 2020-10-16 | 2020-10-16 | Silencer and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022322124.5U CN213480567U (en) | 2020-10-16 | 2020-10-16 | Silencer and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213480567U true CN213480567U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022322124.5U Expired - Fee Related CN213480567U (en) | 2020-10-16 | 2020-10-16 | Silencer and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213480567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279000A (en) * | 2021-12-02 | 2022-04-05 | 珠海格力电器股份有限公司 | Switchable silencer and air conditioner |
-
2020
- 2020-10-16 CN CN202022322124.5U patent/CN213480567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279000A (en) * | 2021-12-02 | 2022-04-05 | 珠海格力电器股份有限公司 | Switchable silencer and air conditioner |
| CN114279000B (en) * | 2021-12-02 | 2022-12-16 | 珠海格力电器股份有限公司 | Switchable silencer and air conditioner |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 Termination date: 20211016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |