Filter bottle capable of reducing noise

Abstract

The utility model relates to the technical field of compressors, and discloses a filter flask capable of reducing noise, at least one expansion chamber is arranged in a shell, a first opening and a second opening which are coaxial are formed in the expansion chamber, the first opening faces the upper end of the shell, the second opening faces the lower end of the shell, and the expansion chamber is provided with a first air inlet and a second air outlet. The shell is provided with a first opening and a second opening, the size of the first opening is larger than that of the second opening, the upper cover is connected to the upper end of the shell, the lower cover is connected to the lower end of the shell, the middle of the upper cover is provided with a first connecting port used for being connected with the outside, and the middle of the lower cover is provided with a second connecting port. The inner pipe is located in the shell, the upper end of the inner pipe penetrates through the expansion chamber, and the outer wall of the lower end of the inner pipe is fixedly connected with a second connector; the utility model has the following technical effects: the fluorine flow sound transmitted to the outside of the filter bottle is reduced, the overall noise of the compressor is effectively reduced, and the purpose of improving the discomfort of the ear feeling is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to a filter bottle for reducing noise. Background Art

[0002] As one of the important components of the compressor, the filter bottle plays an important role in filtering, storing, separating gas and liquid, silencing and buffering refrigerant during the operation of the compressor, avoiding excessive liquid refrigerant from instantly flowing back into the cylinder and preventing liquid compression.

[0003] The filter bottle is an independent component in the compressor, and its operation process also affects the performance, vibration and noise of the compressor. For example, during the operation of the compressor, the gas-liquid mixed refrigerant in the system is sucked from the filter bottle into the pump for compression. In this process, the refrigerant gas will generate a noise of refrigerant flushing the filter bottle when passing through the filter bottle, which is the fluorine flow noise. This noise is one of the sources of abnormal noise in the compressor and affects the comfort of the ears. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a noise-reducing filter bottle, which reduces the fluorine flow sound transmitted to the outside of the filter bottle, effectively reduces the overall noise of the compressor, and achieves the purpose of improving ear discomfort.

[0005] The technical purpose to be achieved by the utility model is achieved through the following technical solutions:

[0006] The utility model provides a noise-reducing filtering bottle, comprising a shell, an upper cover, a lower cover and an inner tube;

[0007] The shell is a hollow cylindrical structure, and at least one expansion chamber is provided inside the shell. The expansion chamber is provided with a first opening and a second opening in a coaxial relationship, the first opening faces the upper end of the shell, the second opening faces the lower end of the shell, and the size of the first opening is larger than the size of the second opening;

[0008] The upper cover is connected to the upper end of the shell, the lower cover is connected to the lower end of the shell, a first connection port for connecting to the outside is opened in the middle of the upper cover, and a second connection port is opened in the middle of the lower cover;

[0009] The inner tube is located inside the shell, the upper end of the inner tube passes through the expansion chamber, and the outer wall of the lower end of the inner tube is fixedly connected to the second connecting port.

[0010] In some implementations, the number of the expansion chambers is three, and the three expansion chambers are sequentially distributed at the upper end, the middle part, and the lower end of the inner part of the shell;

[0011] The upper end of the inner tube passes through the three expansion chambers in sequence, and multiple expansion chambers are provided to further reduce the overall noise of the compressor.

[0012] In some implementations, a partition is provided between two adjacent expansion chambers, a first through hole for the inner tube to pass through is opened in the middle of the partition, and the partition is provided to separate the two adjacent expansion chambers to further improve the sound-absorbing effect of each expansion chamber.

[0013] In some implementations, a reinforcing plate is further provided between the lower cover and the expansion chamber located at the inner lower end of the housing;

[0014] A second through hole for the inner tube to pass through is opened in the middle of the reinforcing plate, and the reinforcing plate is provided to improve the overall strength of the shell, thereby improving the use stability of the filter bottle.

[0015] In some implementations, the reinforcing plate is a circular ring structure, an annular protrusion is formed between the second through hole and the outer edge of the reinforcing plate, the outer edge of the reinforcing plate is fixedly connected to the inner wall of the shell, and the provision of the annular protrusion can improve the bearing strength of the reinforcing plate, thereby better improving the overall strength of the shell.

[0016] In some implementations, an air intake pipe is provided at the upper end of the upper cover, one end of the air intake pipe is connected to the first connecting port, and the air intake pipe is communicated with the interior of the shell. The air intake pipe is used to suck the refrigerant into the shell of the filter bottle to achieve filtering, storage, gas-liquid separation, silencing and buffering refrigerant effects.

[0017] In some implementations, the air intake pipe includes a straight pipe section and an expanded pipe section, and the diameter of the straight pipe section is smaller than the diameter of the expanded pipe section;

[0018] One end of the straight pipe section is connected to the expanded pipe section, and the other end of the straight pipe section is connected to the first connecting port. The expanded pipe section can be provided to better absorb the refrigerant and converge the refrigerant into the straight pipe section.

[0019] In some implementations, a curved pipe is provided at the lower end of the lower cover, one end of the curved pipe is connected to the lower end of the inner pipe, and the other end of the curved pipe is used to be connected to a compressor.

[0020] In some implementations, a filter assembly is provided between the upper end of the shell and the upper cover, and the filter assembly includes a filter screen and a baffle. The filter screen faces the upper cover, and the edge of the filter screen is fixedly connected to the upper end surface of the baffle, and the edge of the baffle is fixedly connected to the inner wall of the shell, so that after the refrigerant passes through the filter screen, the liquid refrigerant and the refrigeration oil pass through the baffle to cause turbulent stirring, so as to promote the evaporation of the liquid refrigerant to produce the effect of gas and liquid separation.

[0021] In some implementations, a convex hump is formed in the middle of the baffle toward the filter screen, and a plurality of third through holes are spaced apart on the baffle along the circumferential direction of the convex hump. The provision of the convex hump can better produce turbulent stirring effect on the liquid refrigerant and the refrigeration oil.

[0022] In summary, the utility model has at least the following benefits:

[0023] The noise reducing filter bottle provided by the utility model adds at least one expansion chamber inside the filter bottle so that the noise generated by the refrigerant gas when passing through the filter bottle is reflected and offset in the expansion chamber, thereby reducing the fluorine flow sound transmitted to the outside of the filter bottle, thereby achieving the purpose of effectively reducing the overall noise of the compressor and improving ear discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a filter bottle for reducing noise according to Example 1 of the utility model;

[0025] Figure 2 It is a cross-sectional view of a noise-reducing filter bottle according to Example 1 of the utility model;

[0026] Figure 3 A cross-sectional view of a noise-reducing filter bottle according to Embodiment 2 of the present utility model;

[0027] Figure 4 It is a cross-sectional view of the interior of the housing of Example 2 of the utility model;

[0028] Figure 5 This is a schematic structural diagram of a reinforcement plate according to Embodiment 2 of the present utility model;

[0029] Figure 6 It is a cross-sectional view of a noise-reducing filter bottle according to Embodiment 3 of the present utility model;

[0030] Figure 7 It is a cross-sectional view of a noise-reducing filter bottle according to Embodiment 4 of the present utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the filter assembly of Example 4 of the utility model;

[0032] 100. Shell;

[0033] 200, upper cover; 210, first connection port;

[0034] 300, lower cover; 310, second connection port;

[0035] 400, inner tube;

[0036] 500, expansion chamber; 510, first opening; 520, second opening;

[0037] 600, partition; 610, first through hole;

[0038] 700, reinforcing plate; 710, second through hole; 720, annular protrusion;

[0039] 800, suction pipe; 810, straight pipe section; 820, expansion pipe section;

[0040] 900, elbow;

[0041] 110, filter assembly; 111, filter screen; 112, baffle; 112a, convex hull; 112b, third through hole. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0044] Embodiment 1:

[0045] See also Figure 1 and Figure 2 A noise-reducing filter bottle includes a shell 100, an upper cover 200, a lower cover 300 and an inner tube 400. The shell 100 is a hollow cylindrical structure, and openings for connecting with the upper cover 200 and the lower cover 300 are respectively provided at the upper end and the lower end thereof. At least one expansion chamber 500 is provided inside the shell 100, that is, the number of the expansion chambers 500 can be adjusted to two or three according to actual needs, and a first opening 510 and a second opening 520 having a coaxial relationship are provided on the expansion chamber 500, such as The first opening 510 and the second opening 520 are both circular openings, the axis of the first opening 510 and the axis of the second opening 520 are coaxial, the first opening 510 is toward the upper end of the shell 100, the second opening 520 is toward the lower end of the shell 100, and the size of the first opening 510 is larger than the size of the second opening 520. As described above, the first opening 510 and the second opening 520 are both circular openings. Therefore, it is understood here that the diameter of the first opening 510 is larger than the diameter of the second opening 520.

[0046] It can be known that the operating principle of the filter bottle is that the gas-liquid mixed refrigerant in the system is sucked from the filter bottle to the pump for compression. In this process, since an expansion chamber 500 is added inside the filter bottle, and the first opening 510 of the expansion chamber 500 is larger than the second opening 520, the noise generated by the refrigerant gas when passing through the filter bottle will be reflected and offset in the process from the first opening 510 to the second opening 520, thereby reducing the fluorine flow sound transmitted to the outside of the filter bottle, thereby achieving the purpose of effectively reducing the overall noise of the compressor and improving ear discomfort.

[0047] The upper cover 200 is connected to the upper end of the shell 100 , the lower cover 300 is connected to the lower end of the shell 100 , a first connection port 210 for connecting to the outside is opened in the middle of the upper cover 200 , and a second connection port 310 is opened in the middle of the lower cover 300 .

[0048] Specifically, the upper cover 200 and the shell 100, as well as the lower cover 300 and the shell 100, can be fixedly connected together by welding, thereby ensuring the connection stability between the upper cover 200 and the shell 100, as well as the lower cover 300 and the shell 100. The first connection port 210 is used to connect the inside of the shell 100 with the outside, and the second connection port 310 is used to fix the inner tube 400.

[0049] The inner tube 400 is located inside the shell 100 , and the upper end of the inner tube 400 passes through the expansion chamber 500 , and the outer wall of the lower end of the inner tube 400 is fixedly connected to the second connection port 310 .

[0050] It can be known that the expansion chamber 500 is provided with a first opening 510 and a second opening 520 with a coaxial relationship, and the first opening 510 is toward the upper end of the shell 100, and the second opening 520 is toward the lower end of the shell 100. Therefore, one end of the inner tube 400 passes through the second opening 520 and the first opening 510 of the expansion chamber 500 from bottom to top in sequence, and the second opening 520 and the first opening 510 can play a certain limiting role in the installation of the inner tube 400, and the outer wall of the lower end of the inner tube 400 is fixedly connected to the second connecting port 310.

[0051] For example, a connection surface may extend toward the upper end at the edge of the second connection port 310. When the lower end of the inner tube 400 is inserted into the second connection port 310, the connection surface can cover the outer wall of the lower end of the inner tube 400, thereby effectively ensuring the sealing of the connection between the second connection port 310 and the inner tube 400. The lower end of the inner tube 400 is used to communicate with the outside, such as to connect to the casing of the compressor.

[0052] The noise reducing filter bottle provided in the present embodiment has a first connection port 210 for connecting to the outside in the middle of the upper cover 200, so that the gas-liquid mixed refrigerant can enter the shell 100 through the first connection port 210, and at least one expansion chamber 500 is added inside the filter bottle, so that the noise generated by the refrigerant gas when passing through the filter bottle is reflected and offset in the expansion chamber 500, thereby reducing the fluorine flow sound transmitted to the outside of the filter bottle, and most of the refrigerant medium can flow back to the compressor casing through the lower end of the inner tube 400.

[0053] Embodiment 2:

[0054] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the filter bottle of the utility model, see Figure 3-Figure 5 .

[0055] There are three expansion chambers 500, which are sequentially distributed at the upper, middle and lower ends of the shell 100. The upper end of the inner tube 400 passes through the three expansion chambers 500 in sequence. In this embodiment, by setting a plurality of expansion chambers 500, the overall noise of the compressor can be further reduced.

[0056] For example, the three expansion chambers 500 are, from top to bottom, the first expansion chamber, the second expansion chamber, and the third expansion chamber. The noise generated when the refrigerant gas passes through the filter bottle is first reflected and offset by the first expansion chamber, and then reflected and offset by the second expansion chamber and the third expansion chamber, thereby fully reducing the fluorine flow sound transmitted to the outside of the filter bottle, thereby achieving the purpose of effectively reducing the overall noise of the compressor and improving ear discomfort.

[0057] In some embodiments, a partition 600 is provided between two adjacent expansion chambers 500 , and a first through hole 610 for the inner tube 400 to pass through is opened in the middle of the partition 600 . The partition 600 is provided to separate the two adjacent expansion chambers 500 , thereby further improving the soundproofing effect of each expansion chamber 500 .

[0058] On the one hand, the partition 600 can separate the adjacent expansion chambers 500, reduce the flow rate of the refrigerant in the shell 100, and further reduce the noise. On the other hand, the first through hole 610 opened in the middle of the partition 600 for the inner tube 400 to pass through can play a certain installation limiting role for the inner tube 400.

[0059] In some embodiments, a reinforcing plate 700 is further provided between the lower cover 300 and the expansion chamber 500 located at the lower end of the shell 100; a second through hole 710 for the inner tube 400 to pass through is provided in the middle of the reinforcing plate 700, and the reinforcing plate 700 is provided to improve the overall strength of the shell 100, thereby improving the stability of the filter bottle during use.

[0060] Specifically, the reinforcing plate 700 is a circular ring structure, and an annular protrusion 720 is formed between the second through hole 710 and the outer edge of the reinforcing plate 700. The outer edge of the reinforcing plate 700 is fixedly connected to the inner wall of the shell 100. The provision of the annular protrusion 720 can improve the bearing strength of the reinforcing plate 700, thereby better improving the overall strength of the shell 100.

[0061] Embodiment 3:

[0062] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the filter bottle of the utility model, see Figure 6 .

[0063] An air intake pipe 800 is provided at the upper end of the upper cover 200, one end of the air intake pipe 800 is connected to the first connecting port 210, and the air intake pipe 800 is communicated with the interior of the shell 100. The air intake pipe 800 is used to suck the refrigerant into the shell 100 of the filter bottle to achieve filtering, storage, gas-liquid separation, silencing and buffering refrigerant effects.

[0064] For example, one end of the air intake pipe 800 is inserted into the first connecting port 210 to ensure the sealing of the connection between the air intake pipe 800 and the first connecting port 210. The air intake pipe 800 is connected to the inside of the shell 100, and the refrigerant enters the inside of the shell 100 through the air intake pipe 800.

[0065] Specifically, the intake pipe 800 includes a straight pipe section 810 and an expanded pipe section 820, wherein the diameter of the straight pipe section 810 is smaller than the diameter of the expanded pipe section 820; one end of the straight pipe section 810 is connected to the expanded pipe section 820, and the other end of the straight pipe section 810 is connected to the first connecting port 210. The expanded pipe section 820 is provided to better absorb the refrigerant and converge the refrigerant into the straight pipe section 810.

[0066] In addition, the design of the expanded pipe section 820 also enables direct welding to the pipe without the need for expansion processing, thereby effectively improving the work efficiency of the tester.

[0067] In some embodiments, a curved pipe 900 is disposed at the lower end of the lower cover 300 , one end of the curved pipe 900 is connected to the lower end of the inner pipe 400 , and the other end of the curved pipe 900 is used to be connected to the compressor.

[0068] During the specific operation process, the gas-liquid mixed refrigerant can enter the shell 100 through the first connecting port 210. The noise generated by the refrigerant gas when passing through the filter bottle is reflected and offset in the expansion chamber 500, thereby reducing the fluorine flow sound transmitted to the outside of the filter bottle. Most of the refrigerant can flow back into the compressor casing through the lower end of the inner tube 400 and the bend 900. That is, the bend 900 is provided for connection with the compressor to facilitate the return of the refrigerant.

[0069] Embodiment 4:

[0070] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the filter bottle of the utility model, see Figure 7-Figure 8 .

[0071] A filter assembly 110 is arranged between the upper end of the shell 100 and the upper cover 200. The filter assembly 110 includes a filter screen 111 and a baffle 112. The filter screen 111 faces the upper cover 200, and the edge of the filter screen 111 is fixedly connected to the upper end surface of the baffle 112. The edge of the baffle 112 is fixedly connected to the inner wall of the shell 100. After the refrigerant passes through the filter screen 111, the liquid refrigerant and the refrigeration oil pass through the baffle 112 to cause turbulent stirring, so as to promote the evaporation of the liquid refrigerant to produce the effect of gas and liquid separation.

[0072] Specifically, a bulge 112a is formed in the middle of the baffle 112 toward the filter 111, and a plurality of third through holes 112b are spaced apart on the baffle 112 in the circumferential direction of the bulge 112a. The bulge 112a can better produce turbulent stirring effect on the liquid refrigerant and the refrigeration oil, while the plurality of third through holes 112b facilitate the passage of the liquid refrigerant and the refrigeration oil.

[0073] For example, there are eight third through holes 112b, and the eight third through holes 112b are spaced apart along the circumferential direction of the bulge 112a, so as to facilitate the liquid refrigerant and the refrigeration oil to pass through each third through hole 112b evenly. Of course, the number of the third through holes 112b is not limited in this example, and can be adjusted according to actual needs.

[0074] The noise reducing filter bottle of the utility model adds at least one expansion chamber inside the filter bottle so that the noise generated by the refrigerant gas when passing through the filter bottle is reflected and offset in the expansion chamber, thereby reducing the fluorine flow sound transmitted to the outside of the filter bottle, thereby achieving the purpose of effectively reducing the overall noise of the compressor and improving ear discomfort.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model 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 on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0077] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0078] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0079] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A filter bottle for reducing noise, characterized in that: It comprises a shell (100), an upper cover (200), a lower cover (300) and an inner tube (400); The shell (100) is a hollow cylindrical structure, and at least one expansion chamber (500) is arranged inside the shell (100). The expansion chamber (500) is provided with a first opening (510) and a second opening (520) in a coaxial relationship, wherein the first opening (510) faces the upper end of the shell (100), and the second opening (520) faces the lower end of the shell (100), and the size of the first opening (510) is larger than the size of the second opening (520); The upper cover (200) is connected to the upper end of the shell (100), the lower cover (300) is connected to the lower end of the shell (100), a first connection port (210) for connecting to the outside is provided in the middle of the upper cover (200), and a second connection port (310) is provided in the middle of the lower cover (300); The inner tube (400) is located inside the shell (100), the upper end of the inner tube (400) passes through the expansion chamber (500), and the outer wall of the lower end of the inner tube (400) is fixedly connected to the second connecting port (310).

2. The noise reducing filter bottle according to claim 1, characterized in that: The number of the expansion chambers (500) is three, and the three expansion chambers (500) are sequentially distributed at the upper end, the middle part and the lower end of the inner part of the shell (100); The upper end of the inner tube (400) passes through the three expansion chambers (500) in sequence.

3. The noise reducing filter bottle according to claim 2, characterized in that: A partition (600) is provided between two adjacent expansion chambers (500), and a first through hole (610) for the inner tube (400) to pass through is provided in the middle of the partition (600).

4. The noise reducing filter bottle according to claim 2, characterized in that: A reinforcing plate (700) is further provided between the lower cover (300) and the expansion chamber (500) located at the lower end of the inner part of the shell (100); A second through hole (710) for the inner tube (400) to pass through is provided in the middle of the reinforcing plate (700).

5. The noise reducing filter bottle according to claim 4, characterized in that: The reinforcing plate (700) is a circular ring structure, an annular protrusion (720) is formed between the second through hole (710) and the outer edge of the reinforcing plate (700), and the outer edge of the reinforcing plate (700) is fixedly connected to the inner wall of the shell (100).

6. The noise reducing filter bottle according to claim 1, characterized in that: An air intake pipe (800) is provided at the upper end of the upper cover (200), one end of the air intake pipe (800) is connected to the first connection port (210), and the air intake pipe (800) is in communication with the interior of the shell (100).

7. The noise reducing filter bottle according to claim 6, characterized in that: The air intake pipe (800) comprises a straight pipe section (810) and an expanded pipe section (820), wherein the diameter of the straight pipe section (810) is smaller than the diameter of the expanded pipe section (820); One end of the straight pipe section (810) is connected to the expanded pipe section (820), and the other end of the straight pipe section (810) is connected to the first connecting port (210).

8. The noise reducing filter bottle according to claim 1, characterized in that: A curved pipe (900) is provided at the lower end of the lower cover (300), one end of the curved pipe (900) is connected to the lower end of the inner pipe (400), and the other end of the curved pipe (900) is used to be connected to a compressor.

9. The noise reducing filter bottle according to claim 1, characterized in that: A filter assembly (110) is arranged between the upper end of the shell (100) and the upper cover (200), and the filter assembly (110) comprises a filter screen (111) and a baffle (112), the filter screen (111) faces the upper cover (200), and the edge of the filter screen (111) is fixedly connected to the upper end surface of the baffle (112), and the edge of the baffle (112) is fixedly connected to the inner wall of the shell (100).

10. The noise reducing filter bottle according to claim 9, characterized in that: A convex hump (112a) is formed in the middle of the baffle (112) in the direction toward the filter screen (111), and a plurality of third through holes (112b) are arranged on the baffle (112) at intervals along the circumferential direction of the convex hump (112a).

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