Gas-liquid separator

Abstract

The utility model provides a gas-liquid separator which comprises a barrel, a gas-liquid separator body and a gas-liquid separator body. The barrel is provided with a top opening. The end cover is connected to the top opening in a sealed mode, and an air inlet and an air outlet are formed in the end cover; the air outlet pipe is located in the cylinder body, and the outlet end of the air outlet pipe is connected with the air outlet; and the filter is sleeved on the outer circumferential wall of the inlet end of the air outlet pipe in an interference manner. According to the gas-liquid separator, the filter is sleeved on the outer circumferential wall of the inlet end of the gas outlet pipe in an interference manner, and a riveting connection mode in the prior art is not needed, so that the connection process of the filter and the gas outlet pipe is simplified, time and labor are saved during assembly, and the assembly efficiency of the gas-liquid separator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning design, in particular to a gas-liquid separator. Background Art

[0002] As an important component in the air conditioning heat pump system, the gas-liquid separator is used to separate the gas phase and liquid phase of the refrigerant to reduce the phenomenon of liquid in the compressor in the air conditioning heat pump system. The patent CN202321229150.0 previously proposed by the applicant discloses a gas-liquid separator, in which the filter and the plugging cover are riveted and fixed as one, which effectively eliminates the disadvantages of the combined fixation in the prior art. However, this riveted and fixed structure is more complicated in the specific implementation process, and the assembly is more time-consuming and labor-intensive. Utility Model Content

[0003] The gas-liquid separator designed in the utility model can at least partially solve the above problems.

[0004] The utility model aims to provide a gas-liquid separator, comprising:

[0005] A cylinder having a top opening;

[0006] An end cover is sealed and connected to the top opening, and an air inlet and an air outlet are formed on the end cover;

[0007] An air outlet pipe is located in the cylinder, and an outlet end of the air outlet pipe is connected to the air outlet;

[0008] The filter is interference-fitted on the outer circumferential wall of the inlet end of the air outlet pipe.

[0009] In some embodiments,

[0010] The filter comprises a barrel-shaped base, the barrel mouth of the barrel-shaped base is fitted with the inlet end, a through hole is formed on the barrel-shaped base, a filter screen is arranged on the through hole, and the filter screen and the barrel-shaped base are integrally injection-molded.

[0011] In some embodiments,

[0012] The barrel-shaped base is made of plastic; and / or

[0013] An oil return orifice plate is arranged in the barrel mouth of the barrel-shaped base body, and the oil return orifice plate is clamped with the inner wall of the barrel-shaped base body through clamping claws.

[0014] In some embodiments,

[0015] The oil return hole plate is formed by plastic injection molding or metal stamping molding.

[0016] In some embodiments,

[0017] When the filter is assembled on the inlet end of the air outlet pipe, the oil return orifice plate abuts against the end surface of the inlet end of the air outlet pipe.

[0018] In some embodiments,

[0019] An inner cover is also provided in the cylinder body, and the inner cover is located on the inner side of the end cover, and the end surface of the inner cover facing the end cover has a flanged ring and multiple convex bumps, the flanged ring is coaxial with the air outlet and is butt-jointed, and the height of each convex bump is equal to that of the flanged ring.

[0020] In some embodiments,

[0021] There are at least two convex bulges, and at least two of them are spaced apart on the end surface of the inner cover facing the end cover to form three-side positioning with the end cover together with the flanged circular ring.

[0022] In some embodiments,

[0023] The outer end surface of the end cover is provided with a plurality of mounting threaded holes, and the inner end surface of the end cover corresponding to the position of each mounting threaded hole is provided with a boss protruding toward one side of the inner cover.

[0024] In some embodiments,

[0025] The matching length between the filter and the air outlet pipe is L, and the straight-line distance between the bottom end surface of the filter and the bottom wall of the cylinder is H, where H<L.

[0026] The gas-liquid separator of the utility model:

[0027] The filter is interference-fitted on the outer circumferential wall of the inlet end of the outlet pipe, and there is no need to use the riveting connection method in the prior art, which simplifies the connection process between the filter and the outlet pipe, saves time and effort in assembly, and improves the assembly efficiency of the gas-liquid separator;

[0028] By designing the height of the flanged ring and the plurality of convex hulls to be equal, the inner cover can be prevented from being installed skewed, that is, the position stability of the inner cover can be ensured;

[0029] The mounting threaded holes are designed on each boss to ensure the thread matching length of the threaded holes, thereby ensuring the reliability of the installation of the gas-liquid separator. At the same time, it can be understood that the other positions are hollow structures, which can save the material of the end cover;

[0030] H<L, which can effectively prevent the filter from being completely separated from the inlet end of the outlet pipe due to vibration during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a top view of a gas-liquid separator according to an embodiment of the utility model.

[0032] Figure 2 yes Figure 1 Cross-section view of AA.

[0033] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the inner cover.

[0034] Figure 4 yes Figure 2 Cross-section of the filter in .

[0035] Figure 5 yes Figure 2 Schematic diagram of the three-dimensional structure of the inner end surface of the middle end cover.

[0036] Figure 6 It is a three-dimensional structural schematic diagram of the gas-liquid separator of the embodiment of the utility model with the cylinder hidden.

[0037] In the figure:

[0038] 1. Cylinder; 2. End cover; 21. Air inlet; 22. Air outlet; 23. Mounting threaded hole; 24. Boss; 3. Air outlet pipe; 4. Filter; 41. Barrel-shaped base; 42. Filter screen; 43. Oil return orifice plate; 431. Claw; 5. Inner cover; 51. Flanged ring; 52. Convex bulge. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. In the drawings, the thickness of regions and layers are exaggerated for clarity. The same reference numerals in the drawings represent the same or similar structures, and thus their detailed description will be omitted.

[0040] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be used. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present invention.

[0041] The following example is a gas-liquid separator of the utility model. This example is only a part of the embodiments of the utility model, but the protection scope of the utility model is not limited to this. All other embodiments obtained by ordinary technicians in this field without creative work should be included in the protection scope of the utility model.

[0042] Please refer to Figures 1 to 6 According to an embodiment of the utility model, a gas-liquid separator is provided, comprising: a cylinder 1, the cylinder 1 having a top opening (not marked in the figure); an end cover 2, sealedly connected (for example, welded to the cylinder 1) to the top opening, and having an air inlet 21 and an air outlet 22 formed on the end cover 2; an air outlet pipe 3, located in the cylinder 1, and the outlet end of the air outlet pipe 3 is connected to the air outlet 22 so that the gas after gas-liquid separation can be output from the air outlet 22; a filter 4, interference-fitted on the outer circumferential wall of the inlet end of the air outlet pipe 3, to perform gas-liquid separation on the gas flowing out of the gas-liquid separator.

[0043] In this technical solution, the filter 4 is interference fit on the outer circumferential wall of the inlet end of the outlet pipe 3, and there is no need to adopt the riveting connection method in the prior art, which simplifies the connection process between the filter 4 and the outlet pipe 3, saves time and effort in assembly, and improves the assembly efficiency of the gas-liquid separator.

[0044] See Figure 4 As shown, in some embodiments, the filter 4 includes a barrel-shaped base 41, that is, its longitudinal section is roughly U-shaped, the barrel mouth of the barrel-shaped base 41 is fitted with the inlet end, a through hole (not marked in the figure) is formed on the barrel-shaped base 41, a filter screen 42 is provided on the through hole, and the filter screen 42 and the barrel-shaped base 41 are integrally injection molded. Specifically, the barrel-shaped base 41 is integrally injection molded with the filter screen 42 using plastic, which can further simplify the molding process of the filter 4. Generally speaking, a plurality of the aforementioned through holes are provided, and the plurality of the through holes are spaced apart around the circumferential direction of the barrel-shaped base 41, and a filter screen 42 is provided in each of the through holes.

[0045] Continue to see Figure 4 As shown, in some embodiments, an oil return orifice plate 43 is provided in the barrel mouth of the barrel-shaped base 41, and the oil return orifice plate 43 is clamped with the inner wall of the barrel-shaped base 41 by a clamping claw 431, that is, when the filter 4 is assembled with the air outlet pipe 3, the oil return orifice plate 43 is first assembled in the barrel-shaped base 41, and the clamping claw 431 is clamped with the annular boss on the inner wall of the barrel-shaped base 41 to facilitate the assembly of the oil return orifice plate 43. The aforementioned oil return orifice plate 43 is formed by plastic injection molding or metal stamping.

[0046] In some embodiments, when the filter 4 is assembled on the inlet end of the outlet pipe 3, the return oil orifice plate 43 abuts against the end face of the inlet end of the outlet pipe 3, and the outlet pipe 3 can be used to clamp the return oil orifice plate 43 between it and the barrel-shaped base 41 to ensure that the position of the return oil orifice plate 43 is reliable and stable.

[0047] See also Figure 2 and Figure 3 As shown, in some embodiments, an inner cover 5 is further provided in the cylinder 1, and the inner cover 5 is located on the inner side of the end cover 2, and the end surface of the inner cover 5 facing the end cover 2 has a flanged ring 51 and multiple convex bumps 52, the flanged ring 51 is coaxial with the gas outlet 22 and is butt-jointed, and the height of each convex bump 52 is equal to that of the flanged ring 51. It can be understood that a gap is formed between the inner cover 5 and the end cover 2 to ensure that the gas entering from the gas inlet 21 can enter the interior of the cylinder 1.

[0048] The technical solution is summarized as follows: by designing the height of the flanged ring 51 and the plurality of convex bumps 52 to be equal, it is possible to prevent the inner cover 5 from being installed skewed, thereby ensuring the position stability of the inner cover 5.

[0049] In a preferred embodiment, there are at least two convex bumps 52, and at least two of them are spaced apart on the end surface of the inner cover 5 facing the end cover 2 to form a three-side positioning with the end cover 2 together with the flanged ring 51, thereby forming a triangular support structure, and the position of the inner cover 5 is more stable and reliable. In some feasible embodiments, the number of the convex bumps 52 can be three or four, such as Figure 3 There are four convex hulls 52 in total.

[0050] See also Figure 5 and Figure 6 As shown, the outer end face of the end cover 2 is provided with a plurality of mounting threaded holes 23, and the inner end face of the end cover 2 corresponding to the position of each mounting threaded hole 23 is provided with a boss 24 protruding toward the side of the inner cover 5, that is, the mounting threaded holes 23 are designed on each boss 24, ensuring the thread matching length of the threaded holes, thereby ensuring the installation reliability of the gas-liquid separator, and at the same time it can be understood that other positions are hollow structures, which can save the material of the end cover 2.

[0051] In a preferred embodiment, the matching length between the filter 4 and the air outlet pipe 3 is L, and the straight-line distance between the bottom end surface of the filter 4 and the bottom wall of the cylinder 1 is H, H<L, which can effectively prevent the filter 4 from being vibrated and completely detached from the inlet end of the air outlet pipe 3 during operation.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas-liquid separator, characterized in that: include: A cylinder (1), wherein the cylinder (1) has a top opening; An end cover (2) is sealed and connected to the top opening, and an air inlet (21) and an air outlet (22) are formed on the end cover (2); An air outlet pipe (3) is located in the cylinder (1), and an outlet end of the air outlet pipe (3) is connected to the air outlet (22); The filter (4) is interference-fitted on the outer circumferential wall of the inlet end of the air outlet pipe (3).

2. The gas-liquid separator according to claim 1, characterized in that: The filter (4) comprises a barrel-shaped base (41), the barrel mouth of the barrel-shaped base (41) is fitted with the inlet end, a through hole is formed on the barrel-shaped base (41), a filter screen (42) is provided on the through hole, and the filter screen (42) and the barrel-shaped base (41) are integrally injection molded.

3. The gas-liquid separator according to claim 2, characterized in that: The barrel-shaped base (41) is made of plastic; and / or, An oil return hole plate (43) is provided in the barrel mouth of the barrel-shaped base (41), and the oil return hole plate (43) is clamped with the inner wall of the barrel-shaped base (41) via a clamping claw (431).

4. The gas-liquid separator according to claim 3, characterized in that: The oil return hole plate (43) is formed by plastic injection molding or metal stamping molding.

5. The gas-liquid separator according to claim 3, characterized in that: When the filter (4) is assembled on the inlet end of the air outlet pipe (3), the oil return orifice plate (43) abuts against the end surface of the inlet end of the air outlet pipe (3).

6. The gas-liquid separator according to claim 1, characterized in that: The cylinder (1) is also provided with an inner cover (5), the inner cover (5) being located on the inner side of the end cover (2), and having a flanged ring (51) and a plurality of convex bumps (52) on the end surface of the inner cover (5) facing the end cover (2), the flanged ring (51) being coaxial with the air outlet (22) and butt-jointed, and the heights of the convex bumps (52) and the flanged ring (51) being equal.

7. The gas-liquid separator according to claim 6, characterized in that: The convex bumps (52) have at least two, and at least two are spaced apart on the end surface of the inner cover (5) facing the end cover (2) to form three-side positioning with the end cover (2) together with the flanged circular ring (51).

8. The gas-liquid separator according to claim 6, characterized in that: The outer end surface of the end cover (2) is provided with a plurality of mounting threaded holes (23), and the inner end surface of the end cover (2) corresponding to the position of each mounting threaded hole (23) is provided with a boss (24) protruding toward one side of the inner cover (5).

9. The gas-liquid separator according to claim 1, characterized in that: The matching length between the filter (4) and the air outlet pipe (3) is L, and the straight-line distance between the bottom end surface of the filter (4) and the bottom wall of the cylinder (1) is H, where H<L.

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