Upper cover silencing structure of multi-cavity compressor

Abstract

The utility model discloses a multi-cavity compressor upper cover noise reduction structure which comprises an upper cover body, a base cylinder is installed in the upper cover body, a second partition square cylinder is arranged in a first partition square cylinder, an outer cavity is arranged between the outer side of the first partition square cylinder and the inner side of the base cylinder, and the outer cavity is communicated with the base cylinder. A middle cavity is formed between the inner side of the first partition square barrel and the outer side of the second partition square barrel, an inner cavity is formed in the inner side of the second partition square barrel, first cooling fins are installed on the inner wall of the base barrel, second cooling fins are installed on the inner wall and the outer wall of the second partition square barrel, and an exhaust port is formed in the upper cover body. According to the upper cover noise reduction structure of the multi-cavity compressor, the novel structural design is adopted, the separation structure of the inner side cavity is separated from the upper cover, the upper cover and the separation structure are independently cast and then stably formed, the casting difficulty of the upper cover is greatly reduced while the stability of the overall structure is guaranteed, and the probability of defects such as bubbles is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor upper covers, in particular to a multi-cavity compressor upper cover silencer structure. Background Art

[0002] Electric scroll compressor is a type of compressor commonly used in the fields of air compression and refrigeration. It has a novel and precise structure, and the casing is often made of all-aluminum structure. The aluminum alloy has low density but high strength, making the overall size of the compressor small and light, easy to install and transport.

[0003] An existing multi-chamber compressor upper cover silencer structure, such as the authorized Chinese utility model patent with publication number CN218407806U entitled A Novel Multi-chamber Compressor Upper Cover Silencer Structure, includes an upper cover, wherein the upper cover is provided with a first cavity at a position opposite to the central exhaust port of the fixed plate, and the upper cover is provided with a second cavity and a third cavity on one side around the first cavity, the second cavity and the third cavity are connected through a first slot, and the first cavity is connected to the second cavity through a second slot; a fourth cavity and a fifth cavity are provided on the other side of the first cavity, the fourth cavity and the fifth cavity are connected through a third slot, and the first cavity is connected to the fourth cavity through a fourth slot; a sixth cavity is provided between the third cavity and the fifth cavity, the sixth cavity is connected to the third cavity and the fifth cavity respectively through the fifth slot and the sixth slot, and an exhaust port is provided inside the sixth cavity. The patented solution features a complex structure for the individual cavities within the upper cover, and the structure is integrally formed with the upper cover. The more structure there is, the more difficult it is to cast the aluminum alloy as a whole, and defects such as bubbles are more likely to form within the upper cover. To address these issues, an innovative design based on the existing compressor upper cover is urgently needed. Utility Model Content

[0004] The purpose of the present utility model is to provide a multi-cavity compressor upper cover silencer structure to solve the problems raised in the above background technology, such as the complexity of the existing multi-cavity compressor upper cover silencer structure, the difficulty of casting the entire aluminum alloy, and the easy occurrence of bubbles inside the upper cover.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a multi-chamber compressor upper cover silencer structure, comprising an upper cover body, a base cylinder is installed in the upper cover body, a positioning plate is provided on the outer surface of the base cylinder, the outer surface of the positioning plate is covered with a noise reduction rubber pad, the outer surface of the noise reduction rubber pad is in contact with the inner wall of the positioning groove, the positioning groove is arranged at the bottom edge of the upper cover body, an outer mounting hole is provided at the top of the upper cover body, a locking bolt is installed in the outer mounting hole, the end of the locking bolt is connected with the inner mounting hole, the inner mounting hole is arranged at the top of the positioning plate, a first partitioning square cylinder is provided in the base cylinder, a second partitioning square cylinder is provided in the first partitioning square cylinder, an outer cavity is provided between the outer side of the first partitioning square cylinder and the inner side of the base cylinder, a middle cavity is provided between the inner side of the first partitioning square cylinder and the outer side of the second partitioning square cylinder, an inner cavity is provided inside the second partitioning square cylinder, a first heat dissipation fin is installed on the inner wall of the base cylinder, a second heat dissipation fin is installed on the inner and outer walls of the second partitioning square cylinder, and an exhaust port is provided on the upper cover body.

[0006] Preferably, an air guide tube is provided on one side of the inner wall of the base tube, and air guide holes are provided through the air guide tube and the base tube, and the center of the air guide tube and the center of the exhaust port are on the same horizontal line.

[0007] Preferably, the positioning plate and the positioning groove are snap-fitted together, and the positioning plate and the positioning groove are T-shaped when viewed from above.

[0008] Preferably, the positioning plates are distributed at equal angles with respect to the center of the base tube, and the length of the positioning plates is greater than half the thickness of the side wall of the upper cover body.

[0009] Preferably, the side lengths of the first partitioning square tube and the second partitioning square tube are both greater than half of the inner radius of the base tube, and the base tube, the first partitioning square tube and the second partitioning square tube are integrated.

[0010] Preferably, the first heat dissipating fins and the second heat dissipating fins are distributed at equal intervals on the inner wall of the base tube and the inner and outer walls of the second partition square tube, respectively, and the thickness of the first heat dissipating fins is not less than the thickness of the second partition square tube.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the multi-cavity compressor upper cover silencer structure adopts a novel structural design, separates the partition structure of the inner cavity from the upper cover, and independently casts the upper cover and the partition structure, and then stabilizes the assembly, thereby ensuring the stability of the overall structure while greatly reducing the difficulty of casting the upper cover and the probability of defects such as bubbles.

[0012] 1. The positioning plates and noise reduction rubber pads on the outside of the base tube are distributed at equal angles and are stably combined with the positioning grooves. The base tube is locked by the locking bolts installed on the top of the upper cover body to ensure a stable connection between the base tube and the upper cover body. At the same time, the base tube and the upper cover body are produced separately, which greatly reduces the difficulty of casting the upper cover body.

[0013] 2. The inner space of the upper cover body is effectively separated by the first partition square tube and the second partition square tube, and the heat dissipation efficiency is increased by the densely distributed first heat dissipation fins and the second heat dissipation fins. At the same time, the first heat dissipation fins and the second heat dissipation fins are produced independently of the upper cover body, and adding the first heat dissipation fins and the second heat dissipation fins will not increase the production difficulty of the upper cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the upper cover body and base tube structure when viewed from above;

[0015] Figure 2 This is a schematic diagram of the top cover structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the upper cover body of the utility model when viewed from above;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the base tube of the utility model when viewed from above.

[0018] In the figure: 1. Upper cover body; 2. Base tube; 3. Positioning plate; 4. Noise reduction rubber pad; 5. Positioning groove; 6. External mounting hole; 7. Locking bolt; 8. Internal mounting hole; 9. First partition square tube; 10. Second partition square tube; 11. External cavity; 12. Middle cavity; 13. Internal cavity; 14. First heat dissipating fin; 15. Second heat dissipating fin; 16. Exhaust port; 17. Air duct; 18. Air duct. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4The utility model provides a technical solution: a multi-cavity compressor cover silencer structure, including a cover body 1, a base tube 2, a positioning plate 3, a noise reduction rubber pad 4, a positioning groove 5, an outer mounting hole 6, a locking bolt 7, an inner mounting hole 8, a first partition square tube 9, a second partition square tube 10, an outer cavity 11, a middle cavity 12, an inner cavity 13, a first heat dissipation fin 14, a second heat dissipation fin 15, an exhaust port 16, an air guide pipe 17 and an air guide hole 18, a base tube 2 is installed in the cover body 1, a positioning plate 3 is provided on the outer surface of the base tube 2, a noise reduction rubber pad 4 is covered on the outer surface of the positioning plate 3, the outer surface of the noise reduction rubber pad 4 is fitted with the inner wall of the positioning groove 5, and the positioning groove 5 is provided at the bottom edge of the cover body 1. An outer mounting hole 6 is provided at the top of the cover body 1, and a locking bolt 7 is installed in the outer mounting hole 6. The end of the locking bolt 7 is connected to the inner mounting hole 8. The inner mounting hole 8 is provided at the top of the positioning plate 3. A first partition square tube 9 is provided in the base tube 2, and a second partition square tube 10 is provided in the first partition square tube 9. An outer cavity 11 is provided between the outer side of the first partition square tube 9 and the inner side of the base tube 2, a middle cavity 12 is provided between the inner side of the first partition square tube 9 and the outer side of the second partition square tube 10, and an inner cavity 13 is provided inside the second partition square tube 10. A first heat dissipation fin 14 is installed on the inner wall of the base tube 2, and a second heat dissipation fin 15 is installed on the inner and outer walls of the second partition square tube 10. An exhaust port 16 is provided on the upper cover body 1.

[0021] In this example, an air guide tube 17 is provided on one side of the inner wall of the base tube 2, and an air guide hole 18 is opened through the air guide tube 17 and the base tube 2. The center of the air guide tube 17 and the center of the exhaust port 16 are on the same horizontal straight line. The above structural design enables the air guide tube 17 to be stably aligned with the exhaust port 16 after the base tube 2 is installed, thereby ensuring the discharge of internal gas.

[0022] The positioning plate 3 and the positioning groove 5 are snap-fitted and have a T-shape when viewed from above. The above structural design ensures a stable connection between the positioning plate 3 and the positioning groove 5, allowing the base tube 2 to be stably combined with the upper cover body 1.

[0023] The positioning plates 3 are distributed at equal angles about the center of the base tube 2. The length of the positioning plates 3 is greater than half the thickness of the side wall of the upper cover body 1. The above structural design ensures that the connection strength between the positioning plates 3 and the positioning grooves 5 is high, ensuring that the base tube 2 will not loosen or detach during installation.

[0024] The side lengths of the first partition square tube 9 and the second partition square tube 10 are both greater than half of the inner radius of the base tube 2. The base tube 2, the first partition square tube 9 and the second partition square tube 10 are integrated. The above structural design enables the first partition square tube 9 and the second partition square tube 10 to effectively separate the inner space of the base tube 2.

[0025] The first heat dissipation fins 14 and the second heat dissipation fins 15 are respectively distributed at equal intervals on the inner wall of the base tube 2 and the inner and outer walls of the second partition square tube 10. The thickness of the first heat dissipation fins 14 is not less than the thickness of the second partition square tube 10. The above structural design can greatly improve the overall heat dissipation efficiency of the upper cover body 1.

[0026] Working principle: During assembly, align the air guide tube 17 with the exhaust port 16, and insert the positioning plate 3 and the noise reduction rubber pad 4 on the outside of the base tube 2 into the positioning groove 5. Use the locking bolt 7 to pass through the outer mounting hole 6 and connect and fix it with the inner mounting hole 8 opened on the positioning plate 3, so that the base tube 2 is stably fixed in the upper cover body 1. The noise reduction rubber pad 4 ensures that there is no gap between the positioning plate 3 and the positioning groove 5, ensuring stable installation while playing a certain role in shock absorption and noise reduction.

[0027] The first partitioning square tube 9 and the second partitioning square tube 10 separate the outer cavity 11, the middle cavity 12 and the inner cavity 13 on the inner side of the base tube 2, and the base tube 2, the first partitioning square tube 9 and the second partitioning square tube 10 are cast independently from the upper cover body 1, which reduces the casting difficulty, and the added first heat dissipation fins 14 and the second heat dissipation fins 15 effectively increase the overall heat dissipation efficiency of the upper cover body 1. This is the working principle of the silencer structure of the multi-chamber compressor upper cover.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-chamber compressor upper cover silencer structure, comprising an upper cover body (1), characterized in that: A base tube (2) is installed in the upper cover body (1), and a positioning plate (3) is provided on the outer surface of the base tube (2). The outer surface of the positioning plate (3) is covered with a noise reduction rubber pad (4). The outer surface of the noise reduction rubber pad (4) is in contact with the inner wall of the positioning groove (5). The positioning groove (5) is provided at the bottom edge of the upper cover body (1). An outer mounting hole (6) is provided at the top of the upper cover body (1). A locking bolt (7) is installed in the outer mounting hole (6). The end of the locking bolt (7) is connected to the inner mounting hole (8). The inner mounting hole (8) is provided at the top of the positioning plate (3). A partitioning square tube (9), wherein a second partitioning square tube (10) is arranged inside the first partitioning square tube (9), an outer cavity (11) is arranged between the outer side of the first partitioning square tube (9) and the inner side of the base tube (2), a middle cavity (12) is arranged between the inner side of the first partitioning square tube (9) and the outer side of the second partitioning square tube (10), an inner cavity (13) is arranged inside the second partitioning square tube (10), a first heat dissipation fin (14) is installed on the inner wall of the base tube (2), a second heat dissipation fin (15) is installed on the inner and outer walls of the second partitioning square tube (10), and an exhaust port (16) is provided on the upper cover body (1).

2. The multi-chamber compressor upper cover silencer structure according to claim 1, characterized in that: An air guide tube (17) is provided on one side of the inner wall of the base tube (2), and an air guide hole (18) is provided through the air guide tube (17) and the base tube (2), and the center of the air guide tube (17) and the center of the exhaust port (16) are on the same horizontal straight line.

3. The multi-chamber compressor upper cover silencer structure according to claim 1, characterized in that: The positioning plate (3) and the positioning groove (5) are connected by snapping, and the positioning plate (3) and the positioning groove (5) are in a "T" shape when viewed from above.

4. The multi-chamber compressor upper cover silencer structure according to claim 1, characterized in that: The positioning plates (3) are distributed at equal angles with respect to the center of the base tube (2), and the length of the positioning plates (3) is greater than half the thickness of the side wall of the upper cover body (1).

5. The multi-chamber compressor upper cover silencer structure according to claim 1, characterized in that: The side lengths of the first partitioning square tube (9) and the second partitioning square tube (10) are both greater than half the inner radius of the base tube (2); the base tube (2), the first partitioning square tube (9) and the second partitioning square tube (10) are integrated.

6. The multi-chamber compressor upper cover silencer structure according to claim 1, characterized in that: The first heat dissipation fins (14) and the second heat dissipation fins (15) are respectively distributed at equal intervals on the inner wall of the base tube (2) and the inner and outer walls of the second partition square tube (10), and the thickness of the first heat dissipation fins (14) is not less than the thickness of the second partition square tube (10).

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