Silencer, compressor and air conditioner

Abstract

The present invention discloses a silencer, a compressor and an air conditioner. The silencer includes a silencer body and an installation structure for fixing the silencer body. The silencer body is an annular structure with a notch and has a sound-absorbing cavity inside for communicating with the flange exhaust port. The inner ring wall of the silencer body forms a central hole. With such a setting, since the silencer is an annular structure with a notch, it has a free end and is no longer a complete closed ring. When installing the silencer, if the installation position accuracy is poor, the silencer can be micro-deformed according to the installation position adjustment for compensation, thereby reducing the requirement for positional accuracy, being easy to assemble, reducing the micro-deformation of the flange and the cylinder, thus avoiding the problems of friction between the internal parts of the compressor pump body, causing noise and resulting in high power consumption of the compressor, improving the overall performance of the compressor, and solving the problems of difficult installation of the silencer in the prior art, as well as being prone to internal wear of the pump body, generating noise, high power consumption, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and more specifically, to a muffler, a compressor and an air conditioner. Background Art

[0002] As Figure 1 and 2 shown, a compressor pump body includes a cylinder 14 and a flange 11 connected to the cylinder 14. The flange 11 has a flange shaft diameter 12, and a flange exhaust port 13 is further provided on the flange 11. A flange exhaust valve 15 is arranged at the flange exhaust port 13. When the compressor pump body operates, the internal pressure of the compressor pump body gradually increases. When the internal pressure of the pump body is greater than the external pressure of the pump body, the gas pushes open the flange exhaust valve 15, and the gas discharges from the flange exhaust port 13 to the outside of the pump body. When the gas discharges, the high-speed and high-pressure airflow acts on the flange exhaust port 13, thereby generating noise. Currently, it mainly relies on installing a muffler 10 outside the flange 11 to eliminate or reduce this noise.

[0003] As Figure 3 shown, the existing muffler 10 is a circular cover body, sleeved on the flange shaft diameter 12, and generally fastened with 4 - 5 screws. As Figure 1 shown, each screw sequentially passes through the flange 11 and the cylinder 14 to lock the muffler 10 on the flange 11 and the cylinder 14. However, such installation has high requirements for the position accuracy of the muffler screw holes, the flange screw holes, and the cylinder screw holes. When the position accuracy of each corresponding screw hole is poor, that is, there is a position deviation in the corresponding hole positions, it is easy to cause problems such as difficult installation, difficult screw locking, and micro-deformation of the cylinder, flange or muffler. When the above parts generate micro-deformation, it is easy to cause problems such as internal wear of the pump body, generation of noise, and high power consumption of the compressor during the operation of the compressor pump body. Therefore, how to solve the problems of difficult installation of the muffler in the prior art, as well as easy internal wear of the pump body, generation of noise, high power consumption, etc., has become an important technical problem to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a muffler, a compressor and an air conditioner to solve the problems of difficult installation of the muffler in the prior art, as well as easy internal wear of the pump body, generation of noise, high power consumption, etc.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A muffler provided by the present invention includes a muffler body and an installation structure for fixing the muffler body. The muffler body is an annular structure with a notch and has a sound-absorbing cavity inside for communicating with the flange exhaust port. A central hole is formed on the inner ring wall of the muffler body.

[0007] Preferably, the muffler body is further provided with an exhaust passage for discharging the gas in the muffling chamber.

[0008] Preferably, the exhaust passage is arranged at a position close to the notch.

[0009] Preferably, there are a plurality of exhaust passages, which are distributed circumferentially along the muffler body.

[0010] Preferably, the muffler body is further provided with at least one muffling lobe that communicates with the muffling chamber and extends in a direction away from the center of the muffler body.

[0011] Preferably, the mounting structure includes a first mounting portion arranged on the muffler body and located at both ends of the notch, and / or a second mounting portion arranged at a position of the muffler body opposite to the notch. The first mounting portion and the second mounting portion are provided with mounting holes for fasteners to pass through.

[0012] The present invention further provides a compressor, including a muffler, and the muffler is the muffler described in any one of the above.

[0013] Preferably, it further includes a flange with a flange shaft diameter, the flange shaft diameter penetrates into the central hole, and the muffler is sleeved on the flange exhaust port.

[0014] Preferably, the muffler is further provided with an exhaust passage for discharging the gas in the muffling chamber. The exhaust passage and the flange exhaust port are distributed at positions close to the notch and are respectively located at both ends of the notch.

[0015] The present invention also provides an air conditioner, including a compressor, and the compressor is the compressor described in any one of the above.

[0016] In the technical solution provided by the present invention, a muffler includes a muffler body and a mounting structure for fixing the muffler body. The muffler body is an annular structure with a notch and has a muffling chamber inside for communicating with the flange exhaust port. The inner ring wall of the muffler body forms a central hole. With such a setting, since the muffler is an annular structure with a notch, it has a free end and is no longer a complete closed ring. When installing the muffler, if the installation position accuracy is poor, the muffler can be micro-deformed according to the installation position for compensation, thereby reducing the requirement for positional tolerance, being easy to assemble, reducing the micro-deformation of the flange and the cylinder, and thus avoiding the problems of friction between the internal parts of the compressor pump body, causing noise, and resulting in high power consumption of the compressor, improving the overall performance of the compressor, and solving the problems of difficult installation of the muffler in the prior art, as well as easy internal wear of the pump body, generation of noise, high power consumption, etc. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a sectional view of the combined installation of a muffler and a compressor pump body in the prior art;

[0019] Figure 2 It is a top view of the combined installation of a muffler and a compressor pump body in the prior art;

[0020] Figure 3 It is a structural schematic diagram of a muffler in the prior art;

[0021] Figure 4 It is a sectional view of the combined installation of a muffler and a compressor pump body in an embodiment of the present invention;

[0022] Figure 5 It is a top view of the combined installation of a muffler and a compressor pump body in an embodiment of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a muffler in the first embodiment of the present invention;

[0024] Figure 7 It is a three-dimensional view of a muffler in the first embodiment of the present invention;

[0025] Figure 8 It is Figure 6 a partial sectional view of A-A in;

[0026] Figure 9 It is a structural schematic diagram of a muffler in the second embodiment of the present invention;

[0027] Figure 10 It is a structural schematic diagram of a muffler in the third embodiment of the present invention;

[0028] Figure 11 It is a structural schematic diagram of a muffler in the fourth embodiment of the present invention.

[0029] Figures 1 - 11 Among them:

[0030] Muffler body - 1, notch - 2, sound absorption cavity - 3, inner ring wall - 4, central hole - 5, exhaust passage - 6, sound absorption side lobe - 7, first mounting part - 8, second mounting part - 9, muffler - 10, flange - 11, flange shaft diameter - 12, flange exhaust port - 13, cylinder - 14, flange exhaust valve - 15. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope protected by the present invention.

[0032] This specific embodiment provides a muffler, a compressor and an air conditioner, which solve the problems in the prior art such as difficult installation of the muffler, easy internal wear of the pump body, generation of noise, high power consumption, etc.

[0033] Hereinafter, the embodiments will be described in detail with reference to the drawings. In addition, the embodiments shown below do not limit the content of the invention described in the claims in any way. Further, all the contents of the configurations shown in the following embodiments are not necessarily essential to the solution of the invention described in the claims.

[0034] Please refer to the attached Figures 1 - 11 , the muffler provided in this embodiment includes a muffler body 1 and an installation structure for fixing the muffler body 1, wherein the installation structure is used to assemble and fix the muffler to the flange 11 of the compressor. The muffler can be installed on the upper flange or the lower flange end face. Figure 4 As shown, the muffler is installed on the upper flange. The muffler body 1 is an annular structure with a notch 2, as Figure 6 shown, it can be set as a "C" shape, and as Figure 8 shown, a muffling cavity 3 for communicating with the flange exhaust port 13 is provided inside it. The gas in the compressor pump body enters the muffling cavity 3 through the flange exhaust port 13 for muffling. A central hole 5 is formed on the inner ring wall 4 of the muffler body 1. It should be noted that the inner ring wall 4 of the muffler body 1 refers to the annular wall surface on the side of the muffler body 1 close to its center as Figure 6 shown. Then, the left side wall of the muffler body 1 in Figure 8 is the inner ring wall 4 referred to.

[0035] With such a setting, since the muffler is an annular structure with a notch, it has a free end and is no longer a complete closed ring, as compared with Figure 3Compared with the silencer shown, it has a certain deformation space and can produce a certain amount of deformation. During installation, if the installation positions of the parts assembled with it, such as flanges and cylinders, have poor accuracy, the silencer can adjust and produce micro-deformations for compensation according to the installation position, thereby reducing the requirements for positional accuracy, being easy to assemble, reducing the micro-deformations of flanges and cylinders, thus avoiding the problems of friction between the internal parts of the compressor pump body, causing noise, and resulting in high power consumption of the compressor, improving the overall performance of the compressor, and solving the problems of difficult installation of the silencer in the prior art, as well as being prone to internal wear of the pump body, generating noise, and having high power consumption.

[0036] Furthermore, the silencer body 1 is also provided with an exhaust passage 6 for discharging the gas in the sound-absorbing cavity 3. In this way, the gas with reduced noise by the silencer can be discharged into the shell of the compressor, thereby reducing the noise generated by the compressor and improving the service performance of the compressor. In this embodiment, as Figure 6 shown, the exhaust passage 6 can be arranged at a position close to the notch 2. Preferably, as Figure 9 shown, the exhaust passage 6 can be arranged in multiple numbers and distributed along the circumferential direction of the silencer body 1. In this way, the gas can be discharged from multiple channels respectively to achieve the purpose of layer-by-layer sound absorption.

[0037] As Figure 10 shown, the silencer body 1 is also provided with at least one sound-absorbing side lobe 7 that is connected to the sound-absorbing cavity 3 and extends in a direction away from the center of the silencer body 1, and the sound-absorbing side lobe 7 is arranged along the circumferential direction of the silencer body 1. In this way, one side lobe can be regarded as a small silencer. When the gas passes through one side lobe, a sound-absorbing process will occur, thereby reducing the noise generated when the gas flows through. Preferably, the sound-absorbing side lobes 7 can be arranged in multiple numbers and distributed at intervals along the circumferential direction of the silencer body 1. In this way, the gas between the side lobes interferes with each other, which is beneficial to layer-by-layer sound absorption and achieves a better noise reduction effect. Among them, the number of the sound-absorbing side lobes 7 can be determined according to actual needs to achieve a better sound-absorbing effect.

[0038] In this embodiment, the installation structure includes a first installation part 8 arranged on the silencer body 1 and located at both ends of the notch 2, and / or a second installation part 9 arranged at a position on the silencer body 1 opposite to the notch 2. Among them, the first installation part 8 and the second installation part 9 are both provided with installation holes for fasteners to pass through. That is to say, the installation structure can be the first installation part 8 arranged at both ends of the notch 2; or, the installation structure can be the second installation part 9 arranged at a position opposite to the notch 2; or, the installation structure includes the first installation part 8 located at both ends of the notch 2 and the second installation part 9 opposite to the position of the notch 2. Such a setting can, while ensuring that the silencer can be fixed, minimize the number of fasteners as much as possible, compared with Figure 3In the case of using five screws for fastening, the requirement for the accuracy of the installation position is reduced, the complexity of the muffler assembly is reduced, and problems such as pump body deformation and wear, noise, and high power consumption caused by the deformation are avoided.

[0039] As Figure 7 shown, the first mounting portion 8 can be a mounting plate provided with mounting holes and is connected to the muffler body 1. The mounting plate and the muffler body 1 can be integrally formed, or can be fixedly connected by welding, bonding, etc.; or the mounting holes can be directly provided on the muffler body 1 to form the first mounting portion 8. The second mounting portion 9 can be a mounting hole directly provided on the muffler body 1; or as Figure 11 shown, the second mounting portion 9 can be a mounting plate provided with mounting holes and is connected to the muffler body 1. In this embodiment, the specific setting forms of the first mounting portion 8 and the second mounting portion 9 can be freely combined by the above two methods. Of course, in other embodiments, the setting method can also be changed accordingly as long as it can play a role in fixing the muffler.

[0040] It should be noted that the number of fasteners is less than four. The fasteners can be screws. As Figure 4 shown, the screws sequentially pass through the mounting holes on the muffler and the flange, then pass through the mounting holes on the cylinder, and are finally locked on the cylinder. With such a setting, the muffler in the present invention has a notch. When the accuracy of the mounting hole position is poor, micro-deformation can be compensated according to the mounting hole position, and at the same time, the number of screw installations is reduced, and the requirement for the accuracy of the screw hole position is not high, so that micro-deformation of the flange and the cylinder will not be caused, and thus problems such as friction and high power consumption are avoided.

[0041] As Figure 4 shown, this embodiment further provides a compressor, including a muffler 10, and the muffler 10 is the muffler described above; it also includes a flange 11 having a flange shaft diameter 12, and the flange shaft diameter 12 penetrates into the central hole 5. The muffler 10 covers the flange exhaust port 13. Among them, there is a gap between the central hole 5 and the flange shaft diameter 12. The muffler 10 is also provided with an exhaust passage 6 for discharging the gas in the sound absorption cavity 3. As Figure 5 shown, the exhaust passage 6 and the flange exhaust port 13 are distributed at positions close to the notch 2 and are respectively located at both ends of the notch 2. In this way, the gas in the pump body enters from one end of the muffler 10 and exits from the other end, extending the sound absorption path of the gas in the muffler 10 and achieving a better sound absorption and noise reduction effect.

[0042] This embodiment also provides an air conditioner, including a compressor, and the compressor is the compressor described above.

[0043] It should be noted that the devices or components with different functions in the above embodiments can be combined. For example, in the preferred solution of this embodiment, the muffler includes a muffler body 1 and an installation structure for fixing the muffler body 1. The muffler body 1 is an annular structure with a notch 2 and has a sound absorption cavity 3 inside for communicating with the flange exhaust port 13. The inner ring wall 4 of the muffler body 1 forms a central hole 5. The installation structure includes a first installation part 8 provided on the muffler body 1 and located at both ends of the notch 2, and / or a second installation part 9 provided at a position of the muffler body 1 opposite to the notch 2. The first installation part 8 and the second installation part 9 are provided with installation holes for fasteners to pass through.

[0044] In this embodiment, the muffler body 1 is provided with an exhaust passage 6 for discharging the gas in the sound absorption cavity 3. The exhaust passage 6 is arranged at a position close to the notch 2. Preferably, a plurality of exhaust passages 6 can be provided and distributed along the circumferential direction of the muffler body 1 to achieve layer-by-layer noise elimination. The muffler body 1 is further provided with at least one sound absorption side lobe 7 communicating with the sound absorption cavity 3 and extending in a direction away from the center of the muffler body 1. With such a setting, the muffler has a notch. When the position accuracy of the installation holes is poor, micro-deformation can be compensated according to the installation hole positions, which is convenient for installation. At the same time, the number of fastener installations is reduced, the requirement for the position accuracy of the installation holes is not high, and it is easy to assemble, so that micro-deformation of the flange and the cylinder will not be caused, thus avoiding problems such as friction and high power consumption.

[0045] This embodiment further provides a compressor, including a muffler 10, and the muffler 10 is the muffler described above; it further includes a flange 11 with a flange shaft diameter 12, and the flange shaft diameter 12 penetrates into the central hole 5, and the muffler 10 covers the flange exhaust port 13. The muffler 10 is further provided with an exhaust passage 6 for discharging the gas in the sound absorption cavity 3. The exhaust passage 6 and the flange exhaust port 13 are distributed at positions close to the notch 2 and are respectively located at both ends of the notch 2. This embodiment also provides an air conditioner, including a compressor, and the compressor is the compressor described above. With such a setting, the muffler is easy to assemble, avoiding deformation of the compressor pump body due to force during installation, resulting in problems such as noise, wear, and high power consumption inside the pump body. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought by the muffler, so it will not be elaborated here.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A silencer, characterized in that, It includes a silencer body (1) and an installation structure for fixing the silencer body (1). The silencer body (1) is an annular structure with a notch (2), and has a silencing cavity (3) inside for communicating with a flange exhaust port (13). The inner ring wall (4) of the silencer body (1) forms a central hole (5); The installation structure includes a first installation part (8) provided on the silencer body (1) and located at both ends of the notch (2), and a second installation part (9) provided at a position of the silencer body (1) opposite to the notch (2). The first installation part (8) and the second installation part (9) are provided with installation holes for fasteners to pass through; The first installation part is an installation plate provided with an installation hole, which is connected to the silencer body; or, the installation hole is directly provided on the silencer body to form the first installation part; The second installation part is an installation hole directly provided on the silencer body; or, the second installation part is an installation plate provided with an installation hole, which is connected to the silencer body; The silencer is located inside a compressor. The compressor includes a flange (11) having a flange shaft diameter (12). The flange shaft diameter (12) penetrates into the central hole (5), and the silencer (10) covers the flange exhaust port (13); The silencer body (1) is further provided with at least one silencing side lobe (7) that communicates with the silencing cavity (3) and extends in a direction away from the center of the silencer body (1).

2. The silencer according to claim 1, characterized in that, The silencer body (1) is further provided with an exhaust passage (6) for discharging the gas in the silencing cavity (3).

3. The silencer according to claim 2, characterized in that, The exhaust passage (6) is provided at a position close to the notch (2).

4. The silencer according to claim 2, characterized in that, The exhaust passages (6) are multiple and are circumferentially distributed along the silencer body (1).

5. A compressor, comprising a muffler (10), characterized in that, The silencer (10) is the silencer according to any one of claims 1-4.

6. The compressor according to claim 5, characterized in that, The silencer (10) is further provided with an exhaust passage (6) for discharging the gas in the silencing cavity (3). The exhaust passage (6) and the flange exhaust port (13) are distributed at positions close to the notch (2) and are respectively located at both ends of the notch (2).

7. An air conditioner, comprising a compressor, characterized in that, The compressor is the compressor according to claim 5 or 6.

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