Rotor compressor silencer with mesh structure
By embedding a circular mesh pad and a pressure ring in the exhaust hole of the exhaust muffler, the noise is reduced by increasing the airflow disorder, solving the problem of high noise in the existing exhaust muffler, and achieving better noise reduction effect and stability.
Patent Information
- Application Number
- CN202421523569.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing exhaust silencers lack a buffer mechanism when exhausting airflow, resulting in high noise and cannot effectively reduce noise.
A rotor compressor muffler with a mesh structure is designed. By embedding a circular mesh pad and a pressure ring in the exhaust hole of the exhaust silence cover, the airflow is blocked and the flow direction is changed when passing through the mesh pad, increasing the airflow disorder, thereby achieving noise reduction effect.
Through the design of the circular mesh pad, airflow reduces flow rate and increases disorder as it passes, significantly reducing noise and improving the stability of the use of the silencer.
Smart Images
Figure CN222702146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to a rotor compressor muffler with a mesh structure. Background Art
[0002] In industrial production, compressor noise is an important issue. If the noise is too loud, it will not only affect the working environment, but also pose a threat to the health of the workers. The use of a rotary compressor muffler can effectively improve the working environment and protect the hearing health of workers. The muffler has a series of pores and pipes inside. Through precise design and configuration, the sound waves generated by the compressor are reflected and refracted in the pores and pipes inside the muffler, thereby reducing the energy loss during sound wave propagation and achieving the effect of reducing noise. The gas silenced by the muffler will be discharged from the exhaust hole of the muffler exhaust cover. The existing exhaust muffler is a stamped part, and the exhaust hole is punched out at a designated position by stamping. There is no buffering mechanism at the exhaust hole, and the airflow cannot be buffered when it is discharged, resulting in a large noise when the airflow is discharged from the exhaust hole. It is urgently needed to be improved. Therefore, we propose a rotary compressor muffler with a mesh structure. Utility Model Content
[0003] The purpose of the utility model is to provide a rotor compressor silencer with a mesh structure, which solves the problems raised in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotor compressor muffler with a mesh structure, including an exhaust muffler cover, a pentagonal boss protruding outward from the middle of the exhaust muffler cover, an exhaust hole is provided on the surface of the pentagonal boss, a groove concentric with the exhaust hole is provided on the inner wall surface of the pentagonal boss, a circular mesh pad is laid inside the groove, and a pressure ring is welded in the groove.
[0005] As a preferred implementation of the technical solution of the present application, a snap ring is integrally formed on the top surface of the pressure ring, and an annular groove for mating with the snap ring is provided on the surface of the groove.
[0006] As a preferred implementation of the technical solution of the present application, the diameter of the circular mesh pad is 3 cm to 4 cm larger than the diameter of the exhaust hole, and the diameter of the inner hole of the pressure ring is 1 cm larger than the diameter of the exhaust hole.
[0007] As a preferred implementation of the technical solution of the present application, the top surface of the exhaust hole protrudes 5 mm more than the top surface of the pentagonal boss.
[0008] As a preferred implementation of the technical solution of the present application, the distance that the bottom of the pressure ring protrudes from the bottom surface of the pentagonal boss is 5 mm.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0010] 1. The technical solution of the present application embeds and fixes a circular mesh pad at the original exhaust hole position, so that the airflow passing through the mesh holes of the circular mesh pad is blocked, and part of the airflow changes direction when passing through the mesh holes of the circular mesh pad, thereby increasing the turbulence of the airflow and achieving a noise reduction effect.
[0011] 2. The technical solution of the present application provides a groove to stably place the circular mesh pad and uses a pressure ring to perform pressure welding with the outer side of the groove, so that the pressure ring can firmly install the circular mesh pad at the exhaust hole, thereby improving the stability of the silencer. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0013] Figure 1 This is a rear view of a rotor compressor muffler with a mesh structure according to the utility model;
[0014] Figure 2 This is a front view of a rotor compressor muffler with a mesh structure according to the utility model;
[0015] Figure 3 It is a schematic diagram of the structure of the exhaust hole of the pentagonal boss.
[0016] In the figure: 1. exhaust silencer cover; 2. pentagonal boss; 3. circular mesh pad; 4. pressure ring; 401. clamping ring; 5. exhaust hole; 501. groove; 502. annular groove. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0018] Embodiment 1, as Figure 1-3 As shown, the utility model provides a technical solution: a rotor compressor muffler with a mesh structure, including an exhaust muffler cover 1, a pentagonal boss 2 is protruding outward from the middle of the exhaust muffler cover 1, an exhaust hole 5 is provided on the surface of the pentagonal boss 2, a groove 501 concentric with the exhaust hole 5 is provided on the inner wall surface of the pentagonal boss 2, a circular mesh pad 3 is laid inside the groove 501, and a pressure ring 4 is welded inside the groove 501.
[0019] In a specific embodiment of the present invention, the exhaust hole position of the original exhaust silencer cover 1 is punched out in advance during the initial stamping process, and the circular boss is a groove 501 (such as Figure 3As shown), the exhaust silencer cover 1 is then punched out with a pentagonal boss 2 through a stamping device, the groove 501 is used to place the circular mesh pad 3, and a circle of annular groove 502 is punched at the farthest end of the diameter of the groove 501, which is used to be embedded with the retaining ring 401 of the pressure ring 4, and the outer ring of the pressure ring 4 is fixed in the groove 501 by pressure welding, and the outer ring of the pressure ring 4 is welded to the pentagonal boss 2, and the pressure ring 4 stably mounts the circular mesh pad 3 inside the groove 501.
[0020] In the preferred technical solution, a retaining ring 401 is integrally formed on the top surface of the pressure ring 4, and an annular groove 502 is provided on the surface of the groove 501 to be embedded and matched with the retaining ring 401. The annular groove 502 is used to be clamped with the retaining ring 401 of the pressure ring 4, and the pressure ring 4 is temporarily fixed inside the groove 501 before the pressure ring 4 is pressure welded.
[0021] In the preferred technical solution, the diameter of the circular mesh pad 3 is 3 cm larger than the diameter of the exhaust hole 5, so that the circular mesh pad 3 fully covers the exhaust hole 5, and the inner hole diameter of the pressing ring 4 is 1 cm larger than the diameter of the exhaust hole 5. The pressing ring 4 is used to press and fix the circular mesh pad 3, and the inner hole of the pressing ring 4 is connected to the exhaust hole 5 through the circular mesh pad 3.
[0022] In the preferred technical solution, the top surface of the exhaust hole 5 protrudes by 5 mm than the top surface of the pentagonal boss 2. The protruding height is the result of the stamping groove 501. The bottom of the pressure ring 4 protrudes from the bottom surface of the pentagonal boss 2 by 5 mm, thereby improving the contact surface between the bottom of the pressure ring 4 and the pentagonal boss 2 for pressure welding, thereby improving the stability of the pressure welding.
[0023] In summary, this embodiment designs an exhaust silencer with a mesh structure, in which a groove 501 is punched out in advance at the exhaust hole position of the original silencer cover during the initial stamping process to reserve space for the installation of a circular mesh pad, and a circular mesh pad is embedded in the reserved position. Then a pressure ring 4 is used to weld the circular mesh pad and the silencer together by resistance welding. In this way, the position of the circular mesh pad is fixed. When the compressed refrigerant passes through the exhaust hole 5 when the compressor is running, the airflow is affected by the circular mesh pad, which reduces the flow rate and increases the turbulence, so as to achieve a better noise reduction effect.
Claims
1. A rotary compressor muffler with a mesh structure, comprising an exhaust muffler cover (1), wherein a pentagonal boss (2) is provided in the middle of the exhaust muffler cover (1) protruding outward, and characterized in that: The surface of the pentagonal boss (2) is provided with an exhaust hole (5), the inner wall surface of the pentagonal boss (2) is provided with a groove (501) arranged concentrically with the exhaust hole (5), a circular mesh pad (3) is laid inside the groove (501), and a pressure ring (4) is welded inside the groove (501).
2. The rotary compressor muffler with a mesh structure according to claim 1, characterized in that: A snap ring (401) is integrally formed on the top surface of the pressure ring (4), and an annular groove (502) for inlaying and matching with the snap ring (401) is provided on the surface of the groove (501).
3. The rotary compressor muffler with a mesh structure according to claim 1, characterized in that: The diameter of the circular mesh pad (3) is 3 cm to 4 cm larger than the diameter of the exhaust hole (5), and the inner diameter of the pressure ring (4) is 1 cm larger than the diameter of the exhaust hole (5).
4. The rotary compressor muffler with a mesh structure according to claim 1, characterized in that: The top surface of the exhaust hole (5) protrudes 5 mm more than the top surface of the pentagonal boss (2).
5. The rotary compressor muffler with a mesh structure according to claim 1, characterized in that: The distance that the bottom of the pressure ring (4) protrudes from the bottom surface of the pentagonal boss (2) is 5 mm.