Silencer and air conditioner having the same

Abstract

The present invention provides a silencer and an air conditioner having the same. The silencer includes: a silencer housing, a first end of the silencer housing being a sound wave inlet, a second end of the silencer housing being a sound wave outlet, and a sound attenuation region being formed inside the silencer housing; a partition plate, the partition plate being disposed in the sound attenuation region, an outer peripheral edge of the partition plate being in sealed contact with an inner wall of the silencer housing to divide the sound attenuation region into a first sound attenuation region and a second sound attenuation region that are connected, and at least one ventilation hole being formed in the partition plate; an adjustment structure, the adjustment structure being disposed in the sound attenuation region, the adjustment structure being connected to the partition plate, and at least a part of the adjustment structure being movably disposed to change a position of the partition plate inside the silencer housing. By providing the partition plate and the adjustment structure that are connected to each other in the sound attenuation region, the sizes of the first sound attenuation region and the second sound attenuation region can be changed, solving the problem of poor sound attenuation effect of the silencer in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and in particular, to a muffler and an air conditioner having the same. Background Art

[0002] In an air-conditioning system, a resistance muffler is usually adopted to eliminate noise in a certain frequency band. The length of the muffler cavity directly affects the size of the effective noise elimination frequency band. Therefore, the length of the noise elimination cavity is usually changed to achieve the elimination of different noise frequencies.

[0003] However, in the prior art, changing the noise elimination cavity will also change the total distance between the sound wave inlet and the sound wave outlet in the muffler, resulting in the noise elimination frequency not reaching the best noise elimination effect, and the noise elimination effect is often poor. Summary of the Invention

[0004] The main object of the present invention is to provide a muffler and an air conditioner having the same, so as to solve the problem of poor noise elimination effect of the muffler in the prior art.

[0005] To achieve the above object, according to one aspect of the present invention, a muffler is provided, including: a muffler housing, the first end of the muffler housing is a sound wave inlet, the second end of the muffler housing is a sound wave outlet, and a noise elimination area is formed inside the muffler housing; a partition plate, the partition plate is arranged in the noise elimination area, and the outer peripheral edge of the partition plate is in sealed contact with the inner wall of the muffler housing to divide the noise elimination area into a connected first noise elimination area and a second noise elimination area, and at least one ventilation hole is opened on the partition plate; an adjusting structure, the adjusting structure is arranged in the noise elimination area, the adjusting structure is connected with the partition plate, and at least part of the adjusting structure is movably arranged to change the position of the partition plate in the muffler housing.

[0006] Further, the muffler housing includes: a first muffler housing, the first end of the first muffler housing is a sound wave inlet; a second muffler housing, the first end of the second muffler housing is a sound wave outlet; wherein, the second end of the second muffler housing is connected to the second end of the first muffler housing to form a noise elimination area.

[0007] Further, the adjusting structure includes: an elastic member, one end of the elastic member is abutted against the partition plate, and the other end of the elastic member is abutted against the inner wall of the muffler housing.

[0008] Further, the cross-section of the muffler housing perpendicular to the sound wave flow direction is circular; the outer diameter of the elastic member when not deformed is the same as the inner diameter of the inner wall of the muffler housing.

[0009] Further, the adjusting structure includes: an adjusting body extending from the periphery of the partition plate in a direction away from the elastic member, and the outer wall surface of the adjusting body is in abutting contact with the inner wall surface of the muffler housing; a second adjusting member disposed in abutting contact with the inner wall of the muffler housing, one end of the second adjusting member being in contact with the free end of the adjusting body, and the second adjusting member being movably disposed along the inner wall of the muffler housing to change the position of the adjusting body within the muffler housing.

[0010] Further, the adjusting structure further includes: a first adjusting member disposed on the inner wall of the muffler housing, the first end of the first adjusting member being in contact with the free end of the adjusting body; wherein, the first adjusting member and the second adjusting member are in abutting contact with each other.

[0011] Further, the end surface of the free end of the adjusting body is provided with a stepped portion connected end to end, the stepped portion being formed by a first side and a second side; the first end of the first adjusting member is in contact with the second side; the first end of the second adjusting member is in contact with the second side.

[0012] Further, the included angle between the first side and the second side is less than or equal to 90°.

[0013] Further, the length of the first end of the first adjusting member on a predetermined projection plane is less than or equal to one-half of the length of the second side on the predetermined projection plane; and / or, the length of the first end of the second adjusting member on the predetermined projection plane is less than or equal to one-half of the length of the second side on the predetermined projection plane; wherein, the predetermined projection plane is parallel to the side of the second adjusting member close to the muffler housing.

[0014] Further, the adjusting structure includes: an adjusting shaft, a connection hole is formed on the second adjusting member, and the adjusting shaft is connected to the second adjusting member through the connection hole; wherein, an adjusting groove is formed on the muffler housing, the adjusting shaft is movably disposed in the adjusting groove, and the adjusting shaft extends into the sound absorption area through the adjusting groove.

[0015] Further, the adjusting structure includes: a handle, the handle is connected to the adjusting shaft, and the handle is disposed on the outside of the muffler housing.

[0016] According to another aspect of the present invention, there is provided an air conditioner including: a muffler, the muffler being the above-mentioned muffler.

[0017] Using the technical solution of the present invention, a partition is provided within the muffler housing to separate the muffler area into a first and second interconnected muffler area. Furthermore, an adjustment structure connected to the partition is provided, and at least a portion of the adjustment structure is movably configured to change the position of the partition within the muffler housing. By providing the interconnected partition and adjustment structure within the muffler area, the sizes of the first and second muffler areas can be changed without changing the length of the muffler cavity. This achieves adjustable muffler bands, allows for precise muffler reduction, and improves the effectiveness of the muffler, resolving the problem of poor muffler effectiveness in existing mufflers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A structural schematic diagram of an embodiment of a muffler according to the present invention is shown;

[0020] Figure 2 A top view of an embodiment of a muffler according to the present invention is shown;

[0021] Figure 3 shows an axonometric view of an embodiment of a muffler according to the present invention;

[0022] Figure 4 An exploded view of an embodiment of a muffler according to the present invention is shown;

[0023] Figure 5 shows an axonometric view of another embodiment of a silencer according to the present invention;

[0024] Figure 6 A cross-sectional view showing an embodiment of a muffler according to the present invention;

[0025] Figure 7 Shown Figure 6 A magnified view of the middle silencer's part A;

[0026] Figure 8 Shown Figure 6 An enlarged view of a portion A of the middle muffler when the second adjusting member begins to move; and

[0027] Figure 9 Shown Figure 6 An enlarged view of part A of the middle muffler when the second adjusting member has finished its movement.

[0028] The above drawings include the following reference numerals:

[0029] 10. Muffler;

[0030] 110, Sound absorption area;

[0031] 130, Silencer housing; 131, First silencer housing; 132, Second silencer housing;

[0032] 140, Partition; 141, Vent hole;

[0033] 150, Adjustment structure; 151, Elastic member;

[0034] 152, Adjustment body; 1521, Free end; 1522, First side; 1523, Second side;

[0035] 1531, First adjustment member; 1532, Second adjustment member; 1533, Connection hole;

[0036] 154, Handle; 155, Adjustment shaft; 156, Adjustment groove;

[0037] 161, Sound wave inlet; 162, Sound wave outlet. Detailed implementation manners

[0038] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] Please refer to Figures 1 to 9 , the silencer 10 includes a silencer housing 130, a partition 140 and an adjustment structure 150.

[0040] Figure 4 shows an exploded view of an embodiment of the silencer 10 according to the present invention. Refer to Figure 4 , the first end of the silencer housing 130 is a sound wave inlet 161, the second end of the silencer housing 130 is a sound wave outlet 162, and a sound absorption area 110 is formed inside the silencer housing 130.

[0041] Figure 1 shows a structural schematic diagram of an embodiment of the silencer 10 according to the present invention. Refer to Figure 1 , the partition 140 is disposed in the sound absorption area 110, and the outer peripheral edge of the partition 140 is in sealed contact with the inner wall of the silencer housing 130 to divide the sound absorption area 110 into a connected first sound absorption area 110 and a second sound absorption area 110. At least one vent hole 141 is provided on the partition 140 to facilitate the passage of sound waves through the vent hole 141. That is to say, the silencer 10 has a double-chamber structure, which is equivalent to a series silencer 10. Compared with a single chamber, the sound absorption frequency band is wider, and the sound absorption effect can be improved.

[0042] Figure 5Shows an axonometric view of another embodiment of the muffler 10 according to the present invention. Refer to Figure 5 , an adjustment structure 150 is disposed within the sound attenuation region 110. The adjustment structure 150 is connected to the partition 140, and at least a part of the adjustment structure 150 is movably disposed to change the position of the partition 140 within the muffler housing 130.

[0043] In this embodiment, a partition 140 is provided within the muffler housing 130 to divide the sound attenuation region 110 into a connected first sound attenuation region 110 and a second sound attenuation region 110. An adjustment structure 150 connected to the partition 140 is further provided, and at least a part of the adjustment structure 150 is movably disposed to change the position of the partition 140 within the muffler housing 130. By providing the partition 140 and the adjustment structure 150 connected to each other within the sound attenuation region 110, the sizes of the first sound attenuation region 110 and the second sound attenuation region 110 can be changed, and the length of the cavity of the muffler 10 is not changed, achieving adjustable sound attenuation frequencies, enabling precise sound attenuation, and having a better effect, thus solving the problem of poor sound attenuation effect of the muffler 10 in the prior art.

[0044] Figure 2 Shows a top view of an embodiment of the muffler 10 according to the present invention. Refer to Figure 2 , the muffler housing 130 includes a first muffler housing 131 and a second muffler housing 132.

[0045] Refer to Figure 5 , the first end of the first muffler housing 131 is a sound wave inlet 161. The first end of the second muffler housing 132 is a sound wave outlet 162.

[0046] Refer to Figure 1 , the second end of the second muffler housing 132 is connected to the second end of the first muffler housing 131 to form the sound attenuation region 110.

[0047] In the first embodiment, one end of the first muffler housing 131 can be the sound wave inlet 161, and the other end of the first muffler 10 can be provided with an internal thread; one end of the second muffler 10 can be the sound wave outlet 162, and the other end of the second muffler 10 can be provided with an external thread. Through the assembly connection of the internal thread and the external thread, the assembly connection of the first muffler housing 131 and the second muffler housing 132 can be achieved.

[0048] In the second embodiment, one end of the first muffler housing 131 can be a sound wave inlet 161, and an external thread can be provided at the other end of the first muffler 10; one end of the second muffler 10 can be a sound wave outlet 162, and an internal thread can be provided at the other end of the second muffler 10. Through the assembly connection of the internal thread and the external thread, the assembly connection of the first muffler housing 131 and the second muffler housing 132 can be achieved.

[0049] It should be noted here that the connection between the first muffler 10 and the second muffler 10 can also adopt an assembly method such as the assembly of a screw and a screw hole, which can achieve the sealed connection of the first muffler housing 131 and the second muffler housing 132.

[0050] Reference Figure 1 , the adjustment structure 150 includes an elastic member 151. In some embodiments, the elastic member 151 can be a spring.

[0051] One end of the elastic member 151 is abutted against the partition 140, and the other end of the elastic member 151 is abutted against the inner wall of the muffler housing 130.

[0052] Figure 3 An axonometric view of an embodiment of the muffler 10 according to the present invention is shown. Reference Figure 1 and Figure 3 , the cross-section of the muffler housing 130 perpendicular to the sound wave flow direction is circular.

[0053] The outer diameter of the elastic member 151 when it is not deformed is the same as the inner diameter of the inner wall of the muffler housing 130. That is to say, the outer wall of the elastic member 151 is in contact with the inner wall of the muffler housing 130.

[0054] Reference Figure 4 , the adjustment structure 150 includes an adjustment main body 152 and a second adjustment member 1532.

[0055] Reference Figure 1 and Figure 4 The adjustment main body 152 extends from the periphery of the partition 140 in a direction away from the elastic member 151, and the outer wall surface of the adjustment main body 152 is in contact with the inner wall surface of the muffler housing 130.

[0056] Reference Figure 1, the second adjusting member 1532 is disposed against the inner wall of the muffler housing 130. One end of the second adjusting member 1532 contacts the free end 1521 of the adjusting body 152. The second adjusting member 1532 is movably disposed along the inner wall of the muffler housing 130 to change the position of the adjusting body 152 within the muffler housing 130. The first end of the second adjusting member 1532 is a relatively smooth end surface to ensure that the resistance when the second adjusting member 1532 slides on the free end 1521 of the adjusting body 152 is small, making the movement smoother.

[0057] Figure 6 shows a cross-sectional view of an embodiment of a muffler 10 according to the present invention. Refer to Figure 6 , the adjusting structure 150 further includes a first adjusting member 1531.

[0058] The first adjusting member 1531 is disposed on the inner wall of the muffler housing 130. The first end of the first adjusting member 1531 contacts the free end 1521 of the adjusting body 152. The first end of the first adjusting member 1531 is a relatively smooth end surface to ensure that the resistance when the first adjusting member 1531 slides on the free end 1521 of the adjusting body 152 is small, making the movement smoother.

[0059] The first adjusting member 1531 and the second adjusting member 1532 are disposed against each other, so that when the second adjusting member 1532 moves once, the partition 140 only moves a length of a first side edge 1522.

[0060] In some embodiments, the elastic member 151 can be a spring. When the spring is subjected to a pressure from the partition 140, it can be compressed, and when the pressure disappears, it can also drive the partition 140 to return to its original position. Since the partition 140 is always subjected to the force given by the spring, the partition 140 can always contact the first adjusting member 1531 and the second adjusting member 1532.

[0061] Figure 7 shows Figure 6 a partial enlarged view of area A of the muffler 10 in Figure 7 , the end surface of the free end 1521 of the adjusting body 152 is provided with steps connected end to end. The steps are formed by a first side edge 1522 and a second side edge 1523.

[0062] The first end of the first adjusting member 1531 contacts the second side edge 1523; the first end of the second adjusting member 1532 contacts the second side edge 1523.

[0063] In some embodiments, the included angle between the first side edge 1522 and the second side edge 1523 is less than or equal to 90°, so that the first adjusting member and the second adjusting member can slide smoothly relative to the second side edge.

[0064] In the first embodiment, the length of the first end of the first adjusting member 1531 on a predetermined projection plane is less than or equal to one-half of the length of the second side 1523 on the predetermined projection plane.

[0065] In the second embodiment, the length of the first end of the second adjusting member 1532 on a predetermined projection plane is less than or equal to one-half of the length of the second side 1523 on the predetermined projection plane.

[0066] In the third embodiment, the length of the first end of the first adjusting member 1531 on a predetermined projection plane is less than or equal to one-half of the length of the second side 1523 on the predetermined projection plane, and the length of the first end of the second adjusting member 1532 on a predetermined projection plane is less than or equal to one-half of the length of the second side 1523 on the predetermined projection plane. It can be ensured that when the first adjusting member 1531 and the second adjusting member 1532 contact the second side 1523, they are both located on the second side 1523, and there will be no jamming when changing the position of the adjusting body 152 within the sound absorption area 110.

[0067] Wherein, the predetermined projection plane is parallel to the side surface of the second adjusting member 1532 close to the muffler housing 130.

[0068] See Figure 4 , the adjusting structure 150 includes an adjusting shaft 155.

[0069] A connecting hole 1533 is formed on the second adjusting member 1532, and the adjusting shaft 155 is connected to the second adjusting member 1532 through the connecting hole 1533.

[0070] In some embodiments, an external thread is provided at one end of the adjusting shaft 155, and an internal thread is provided on the inner wall of the connecting hole 1533. The connection between the adjusting shaft 155 and the connecting hole 1533 can be achieved through the assembly connection of the internal thread and the external thread.

[0071] An adjusting groove 156 is formed on the muffler housing 130, the adjusting shaft 155 is movably arranged in the adjusting groove 156, and the adjusting shaft 155 extends into the sound absorption area 110 through the adjusting groove 156.

[0072] See Figure 4 , the adjusting structure 150 includes a handle 154. The handle 154 is connected to the adjusting shaft 155, and the handle 154 is arranged on the outer side of the muffler housing 130. The movement of the adjusting shaft 155 in the connecting hole 1533 can be realized by moving the handle 154, and further the movement of the second adjusting member 1532 along the muffler housing 130 can be realized.

[0073] In some embodiments, the air conditioner may include a muffler 10, and the muffler 10 is the muffler 10 in the above embodiment.

[0074] Figure 8 Shows Figure 6 An enlarged view of part A when the second adjusting member 1532 of the muffler 10 starts to move in [reference]. Refer to Figure 8 , the operating handle 154 drives the second adjusting member 1532 to move to the right. The second adjusting member 1532 pushes the adjusting body 152 to move to the right. Since the first adjusting member 1531 is fixed to the inner wall of the muffler housing 130, the first adjusting member 1531 does not move along with the movement of the adjusting body 152. The first adjusting member 1531 gradually moves away from the second side 1523, so the first adjusting member 1531 will slide upward along the second side 1523. When the first adjusting member 1531 contacts the second side 1523 of the adjacent step, the second adjusting member 1532 stops moving.

[0075] Figure 9 Shows Figure 6 An enlarged view of part A when the second adjusting member 153 of the muffler 10 ends its movement in [reference]. Refer to Figure 9 , the operating handle 154 makes the second adjusting member 1532 move to the left. When the second adjusting member 1532 touches the free end 1521 of the adjusting body 152, since the first adjusting member 1531 is fixed, the adjusting body 152 rotates under the elastic force, causing the first adjusting member 1531 to slide along the second side 1523. The operating handle 154 makes the second adjusting member 1532 contact the second side 1523, and the second adjusting member 1532 will move upward along the second side 1523 until it abuts against the first adjusting member 1531. At this time, the partition 140 completes its movement to the right.

[0076] In some embodiments, a glass frame may be provided near the handle 154 of the muffler housing 130 to facilitate observing the movement of the second adjusting member 1532 and more accurately control the size ratio of the first muffling area 110 and the second muffling area 110.

[0077] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0078] In the present invention, a partition 140 is provided inside the silencer housing 130 to divide the silencing area 110 into a first silencing area 110 and a second silencing area 110 that are connected. Then, an adjusting structure 150 connected to the partition 140 is provided, and at least a part of the adjusting structure 150 is movably arranged to change the position of the partition 140 inside the silencer housing 130. By providing the partition 140 and the adjusting structure 150 that are interconnected inside the silencing area 110, the sizes of the first silencing area 110 and the second silencing area 110 can be changed, and the length of the cavity of the silencer 10 is not changed. The adjustability of the silencing frequency band is achieved, accurate silencing can be performed, and the effect is better, solving the problem of poor silencing effect of the silencer 10 in the prior art.

[0079] It should be noted that the terms "first", "second", etc. in the description of the specification, claims and the above-mentioned drawings of the present application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "first", "second", "third", "fourth", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0080] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0081] It should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0082] In the description of this specification, the descriptions referring to terms such as "some embodiments", or "other embodiments", or "in the first embodiment", or "in the second embodiment", or "in the third embodiment", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described are combined in any one or more embodiments or examples in a suitable manner.

[0083] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A muffler, characterized in that: include: A muffler housing (130), wherein a first end of the muffler housing (130) is a sound wave inlet (161), a second end of the muffler housing (130) is a sound wave outlet (162), and a muffler area (110) is formed in the muffler housing (130); a partition (140), the partition (140) being arranged in the muffler area (110), the outer periphery of the partition (140) being in sealing contact with the inner wall of the muffler housing (130) to separate the muffler area (110) into a first muffler area and a second muffler area that are connected, and at least one vent hole (141) being formed on the partition (140); an adjustment structure (150), the adjustment structure (150) being arranged in the silencing area (110); The regulating structure (150) comprises: An adjusting body (152) and a second adjusting member (1532), wherein the outer wall of the adjusting body (152) and the second adjusting member (1532) are both in contact with the inner wall of the muffler housing (130), and the adjusting body (152) is connected to the periphery of the partition (140); the second adjusting member (1532) is movably arranged along the inner wall of the muffler housing (130) to change the position of the partition (140) in the muffler housing (130); A first adjusting member (1531) is fixed to the inner wall of the muffler housing (130); the first adjusting member (1531) and the second adjusting member (1532) are arranged in close contact with each other; an elastic member (151), one end of the elastic member (151) being disposed against the partition (140), and the other end of the elastic member (151) being disposed against the inner wall of the muffler housing (130); The end surface of the free end (1521) of the regulating body (152) is configured as a step connected end to end, the step being formed by a first side edge (1522) and a second side edge (1523); the angle between the first side edge (1522) and the second side edge (1523) is less than or equal to 90°; The first end of the first adjusting member (1531) contacts the second side edge (1523); The first end of the second adjusting member (1532) contacts the second side edge (1523).

2. The muffler according to claim 1, characterized in that The muffler housing (130) comprises: a first muffler housing (131), wherein a first end of the first muffler housing (131) is the sound wave inlet (161); a second muffler housing (132), wherein a first end of the second muffler housing (132) is the sound wave outlet (162); The second end of the second muffler housing (132) is connected to the second end of the first muffler housing (131) to form the muffler area (110).

3. The muffler according to claim 1, characterized in that The cross section of the muffler housing (130) perpendicular to the direction in which the sound waves flow is circular; The outer diameter of the elastic member (151) when not deformed is the same as the inner diameter of the inner wall of the muffler housing (130).

4. The muffler according to claim 1, wherein: The regulating body (152) is extended from the periphery of the partition (140) in a direction away from the elastic member (151).

5. The muffler according to claim 1, wherein: The length of the first end of the first adjusting member (1531) on the predetermined projection surface is less than or equal to half the length of the second side (1523) on the predetermined projection surface; and / or, The length of the first end of the second adjusting member (1532) on the predetermined projection surface is less than or equal to half the length of the second side edge (1523) on the predetermined projection surface; The predetermined projection plane is parallel to the side surface of the second adjusting member (1532) close to the muffler housing (130).

6. The muffler according to claim 4, characterized in that The regulating structure (150) comprises: An adjusting shaft (155), a connecting hole (1533) is provided on the second adjusting member (1532), and the adjusting shaft (155) is connected to the second adjusting member (1532) through the connecting hole (1533); The muffler housing (130) is provided with an adjustment groove (156), the adjustment shaft (155) is movably disposed in the adjustment groove (156), and the adjustment shaft (155) extends into the muffler area (110) through the adjustment groove (156).

7. The muffler according to claim 6, characterized in that The regulating structure (150) comprises: A handle (154), the handle (154) is connected to the adjustment shaft (155), and the handle (154) is arranged outside the muffler housing (130).

8. An air conditioner, characterized in that: include: A silencer (10), wherein the silencer (10) is the silencer according to any one of claims 1 to 7.

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