Small suction silencer structure

Abstract

The utility model provides a small air suction silencer structure which comprises a silencer upper cavity, a silencer lower cavity arranged below the silencer upper cavity, a vertical partition plate arranged on the lower portion of the silencer upper cavity, an intercepting hole formed in one side of the lower portion of the vertical partition plate, and a matching groove formed in the other side of the lower portion of the vertical partition plate. A protruding block is arranged on one side, corresponding to the matching groove, of the lower portion of the inner side wall of the silencer lower cavity, and therefore the number of parts can be reduced, materials and die cost can be saved by arranging the silencer upper cavity, the silencer lower cavity and the vertical partition plate, and the purpose of reducing cost can be achieved. And the vertical partition plate is additionally arranged, and the intercepting holes are formed in the vertical partition plate, so that the noise reduction effect of the small silencer is enhanced according to the small hole throttling principle.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a small air suction muffler structure. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] In order to reduce the noise at the suction end, existing compressors will add a plastic muffler assembly structure to the suction port of the pump body. A partition is generally designed inside the muffler assembly to divide the internal space into an upper chamber and a lower chamber, which are connected by a small hole in the middle of the partition. When the compressor is working, the gas enters from the suction port of the lower chamber, and then when passing through the small hole of the partition, the suction resistance will increase due to the gas throttling effect, reducing the suction pulsation, thereby further reducing the noise at the suction end.

[0004] However, the existing muffler assembly is divided into an upper chamber, a partition and a lower chamber, and has a large number of parts, all of which require separate molds to produce, which is costly. In addition, the miniaturization of the compressor leads to a reduction in the internal space of the shell, a reduction in the volume of the muffler chamber, and insufficient space for arranging the partition, so the noise cannot be reduced by throttling. Therefore, the utility model provides a small suction muffler structure to solve the above problems. Utility Model Content

[0005] In view of this, the utility model provides a small air intake silencer structure, which can reduce the number of parts and save material and mold costs by setting a silencer upper chamber, a silencer lower chamber and a vertical partition, thereby achieving the purpose of reducing costs, and by adding a vertical partition and a cut-off hole set thereon, the noise reduction effect of the small silencer is enhanced through the small hole throttling principle.

[0006] In order to solve the above technical problems, the utility model provides a small air intake silencer structure, including an upper silencer chamber, a lower silencer chamber is arranged below the upper silencer chamber, a vertical partition is arranged at the lower part of the upper silencer chamber, the vertical partition and the upper silencer chamber are integrally formed by mold casting, a cut-off hole is opened on one side of the lower part of the vertical partition, the cut-off hole can be integrally formed with the vertical partition by mold casting during production, a matching groove is opened on the other side of the lower part of the vertical partition, the matching groove can be integrally formed with the vertical partition by mold casting during production, a raised block is arranged on the lower part of the inner side wall of the lower silencer chamber corresponding to the side of the matching groove, and the raised block can be integrally formed with the lower silencer chamber by mold casting when producing the lower silencer chamber.

[0007] A mounting groove is provided at the lower part of the upper cavity of the muffler, and the mounting groove can be opened by a groove opener. The upper cavity of the muffler is connected to the lower cavity of the muffler through the mounting groove, and the upper cavity of the muffler and the lower cavity of the muffler are connected by a snap-fit ​​method through the mounting groove. A thin iron wire is provided in the mounting groove, and the thin iron wire is used to extrude and fuse the upper cavity of the muffler and the lower cavity of the muffler through induction heating, and the outer wall of the matching groove is tightly fitted with the outer wall of the protruding block. The upper cavity of the muffler includes a compressor valve group connection port, and the lower cavity of the muffler includes a lower cavity air intake port. The size of the intercepting hole is consistent with the cross-sectional area of ​​the lower cavity air intake port.

[0008] The beneficial effects of the above technical solution of the utility model are as follows:

[0009] 1. By setting the upper chamber of the muffler, the lower chamber of the muffler and the vertical partition, the number of parts is reduced, the material and mold costs are saved, and the purpose of reducing costs can be achieved.

[0010] 2. By adding vertical partitions and intercepting holes arranged thereon, the noise reduction effect of the small silencer is enhanced through the small hole throttling principle.

[0011] 3. The upper chamber of the muffler, the lower chamber of the muffler and the vertical partition are provided to reduce the use of parts and simplify the assembly process, thereby improving the reliability of the muffler assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the local parts of the upper chamber of the muffler of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the local parts of the lower chamber of the muffler of the utility model;

[0015] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0016] In the figure: 101, upper chamber of muffler; 102, lower chamber of muffler; 103, vertical partition; 104, intercepting hole; 105, matching groove; 106, raised block; 107, mounting groove; 108, lower chamber suction port; 109, compressor valve group connection port. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4, the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0018] like Figure 1-4 As shown: a small suction silencer structure, including a silencer upper chamber 101, a silencer lower chamber 102 is arranged below the silencer upper chamber 101, a vertical partition 103 is arranged at the lower part of the silencer upper chamber 101, and the vertical partition 103 is arranged to separate the lower chamber suction port 108 and the upper chamber and compressor valve group connection port 109 into two left and right chambers, so that the middle part can flow out of the position of the interception hole 104, the vertical partition 103 and the silencer upper chamber 101 are integrally formed by mold casting, so that the connection structure is more stable, and an interception hole 104 is opened on one side of the lower part of the vertical partition 103. The interception hole 104 is arranged to reduce the suction pulsation and reduce the noise through the principle of small hole throttling. The interception hole 104 can be integrally formed with the vertical partition 103 by mold casting during production, so that the connection structure To make it more stable, a matching groove 105 is provided on the other side of the lower part of the vertical partition 103. The matching groove 105 is provided so as to match the protruding block 106. The matching groove 105 can be integrally formed with the vertical partition 103 through mold casting during production, so that the connection structure is more stable. A thin iron wire is provided in the installation groove 107. The thin iron wire extrude and fuse the muffler upper chamber 101 and the muffler lower chamber 102 through induction heating, so that the connection structure is more stable. A protruding block 106 is provided on the side of the lower inner wall of the muffler lower chamber 102 corresponding to the matching groove 105. The protruding block 106 is provided so as to match with the matching groove 105 to leave the intercepting hole 104. The protruding block 106 can be integrally formed with the muffler lower chamber 102 through mold casting when producing the muffler lower chamber 102, so that the connection structure is more stable.

[0019] The lower part of the upper chamber 101 of the muffler is provided with a mounting groove 107, and the mounting groove 107 is provided so as to be connected to the lower chamber 102 of the muffler. The mounting groove 107 can be opened by a slot opener, and the upper chamber 101 of the muffler is connected to the lower chamber 102 of the muffler through the mounting groove 107. The upper chamber 101 of the muffler and the lower chamber 102 of the muffler are connected by a snap connection through the mounting groove 107, so that the connection structure is more stable and easy to disassemble and assemble. The outer wall of the matching groove 105 is tightly fitted with the outer wall of the protruding block 106, so that only the intercepting hole 104 is left for small hole throttling. Thereby, it plays a role in noise reduction. The upper chamber 101 of the muffler includes a compressor valve group connection port 109, which is used to connect various components according to different compressor types. The lower chamber 102 of the muffler includes a lower chamber air intake port 108. The lower chamber air intake port 108 is provided so that low-temperature and low-pressure gas can be inhaled, the refrigeration cycle can be started, liquid hammer can be prevented, and continuous air supply can be maintained. The size of the shut-off hole 104 is consistent with the cross-sectional area of ​​the lower chamber air intake port 108, which can effectively reduce the noise generated during the suction process without affecting the normal gas flow, thereby helping to balance the silencing effect and the gas flow demand.

[0020] The use of the utility model:

[0021] When in use, the upper chamber of the muffler is matched with the lower chamber of the muffler. At this time, the matching groove on one side of the vertical partition is tightly fitted with the raised block, so that gas can flow only at the intercepting hole. Therefore, the number of parts can be reduced by matching the vertical partition with the intercepting hole, saving material and mold costs. In addition, the small-hole throttling is performed by adding the vertical partition and the intercepting hole, thereby enhancing the noise reduction effect of the small muffler.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A small suction muffler structure, characterized in that: The invention comprises an upper silencer chamber (101), a lower silencer chamber (102) being arranged below the upper silencer chamber (101), a vertical partition plate (103) being arranged at the lower part of the upper silencer chamber (101), a cut-off hole (104) being arranged at one side of the lower part of the vertical partition plate (103), a matching groove (105) being arranged at the other side of the lower part of the vertical partition plate (103), and a protruding block (106) being arranged at the lower part of the inner side wall of the lower silencer chamber (102) on one side corresponding to the matching groove (105).

2. The small suction muffler structure according to claim 1, characterized in that: A mounting groove (107) is provided at the lower part of the upper chamber (101) of the muffler, and the upper chamber (101) of the muffler is connected to the lower chamber (102) of the muffler via the mounting groove (107).

3. The small suction muffler structure according to claim 2, characterized in that: A thin iron wire is arranged in the installation groove (107), and the thin iron wire is used to squeeze and fuse the upper chamber (101) of the muffler and the lower chamber (102) of the muffler through induction heating.

4. The small suction muffler structure according to claim 1, characterized in that: The outer side wall of the matching groove (105) is tightly fitted with the outer side wall of the protruding block (106).

5. The small suction muffler structure according to claim 1, characterized in that: The muffler upper chamber (101) comprises a compressor valve group connection port (109).

6. The small suction muffler structure according to claim 1, characterized in that: The muffler lower chamber (102) comprises a lower chamber air intake port (108).

7. The small suction muffler structure according to claim 1, characterized in that: The size of the intercepting hole (104) is consistent with the cross-sectional area of ​​the lower cavity air intake port (108).

Images