Gas-liquid separator

Abstract

The utility model discloses a gas-liquid separator. The gas-liquid separator comprises a shell, a coaxial pipe and an abutting frame, the shell is provided with an inner cavity, at least part of the coaxial pipe is located in the inner cavity, the coaxial pipe comprises an inner pipe and an outer pipe, the inner pipe is fixedly connected or in limited connection with the shell, and a flow channel is formed between the inner pipe and the outer pipe; the abutting frame comprises a first limiting assembly, the first limiting assembly is located in the flow channel in the radial direction of the gas-liquid separator, the radial inner side of the first limiting assembly is connected with the inner pipe in a limiting mode, the radial outer side of the first limiting assembly is connected with the outer pipe in a limiting mode, and therefore assembling can be rapidly conducted.

Description

Technical Field

[0001] The present application relates to the field of thermal management technology, and in particular to a gas-liquid separator. Background Art

[0002] The air guide tube commonly used in the current gas-liquid separator is a coaxial tube structure. The coaxial tube is made by extruding an inner tube and an outer tube at the same time. The two are connected to each other by reinforcing ribs. After cutting and processing, a bulk liquid cup and a filter are added to form an internal air guide tube group. The production and subsequent processing of the coaxial tube of this structure are relatively complicated, and it is difficult to achieve quick installation. Utility Model Content

[0003] The purpose of the present application is to provide a low-cost gas-liquid separator that can be assembled quickly.

[0004] To achieve the above purpose, one embodiment of the present application adopts the following technical solution:

[0005] A gas-liquid separator comprises a shell, a coaxial tube and an abutment frame; the shell has an inner cavity, the coaxial tube is at least partially located in the inner cavity, the coaxial tube comprises an inner tube and an outer tube, the inner tube is fixedly connected or limit-connected to the shell, and a flow channel is provided between the inner tube and the outer tube; the abutment frame comprises a first limit-limiting component, along the radial direction of the gas-liquid separator, the first limit-limiting component is located in the flow channel, the radial inner side of the first limit-limiting component is limit-connected to the inner tube, and the radial outer side of the first limit-limiting component is limit-connected to the outer tube.

[0006] In an embodiment provided in the present application, by improving the limiting or fixing method between the inner tube and the outer tube, the inner tube, the outer tube and the first limiting assembly are separated into multiple parts, which no longer need to be formed as one piece through extrusion. Modular production can be achieved for quick installation, mass production can be achieved and production costs can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a three-dimensional structural schematic diagram of an implementation mode of the gas-liquid separator of the present application;

[0008] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the gas-liquid separator;

[0009] Figure 3 It is a schematic diagram of the combined structure of the bulk cup and the coaxial tube;

[0010] Figure 4 It is a schematic diagram of the three-dimensional structure of the bulk liquid cup;

[0011] Figure 5 It is a three-dimensional structural diagram of the bulk cup from another perspective;

[0012] Figure 6 It is a bottom view of the bulk cup;

[0013] Figure 7 It is a half-section structural schematic diagram of another embodiment of the gas-liquid separator of the present application;

[0014] Figure 8 It is a schematic diagram of the combined structure of the splash shield and the coaxial tube of the present application;

[0015] Fig. 9 It is a schematic diagram of the three-dimensional structure of the splash guard;

[0016] Fig.10 It is a three-dimensional structural schematic diagram of the splash shield from another perspective;

[0017] Fig.11 is a bottom view of the splash guard;

[0018] Fig.12 It is a schematic diagram of the three-dimensional structure of the filter;

[0019] Fig.13 yes Fig.12 A schematic cross-sectional view of the filter;

[0020] Fig.14 It is a three-dimensional schematic diagram of the inner tube and the outer tube.

[0021] Description of main component symbols:

[0022] 10. Shell; 11. Inner cavity; 12. Inlet; 13. Outlet; 14. Shell; 15. Cover; 20. Coaxial tube; 21. Inner tube; 211. First groove; 22. Outer tube; 221. Second groove; 30. Abutment frame; 31. First stopper assembly; 311. First inner arc plate; 3111. First wall surface; 312. First outer arc plate; 3121. Second wall surface; 313. First connector; 314. First rib; 315 , second rib; 32, annular portion; 33, elastic portion; 34, claw; 35, bulk cup; 351, baffle; 352, cup wall; 36, splash shield; 361, cover; 362, wall; 37, elbow; 40, filter; 41, second limit assembly; 411, second inner arc plate; 412, second outer arc plate; 413, second connecting piece; 414, third rib; 415, fourth rib; 42, oil return hole; 43, side wall.

[0023] The above description of the main component symbols is combined with the accompanying drawings and specific implementation methods to further illustrate the present invention in detail. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] The present application is further described below with reference to the accompanying drawings and specific embodiments:

[0026] Figures 1 to 14 The embodiment of a gas-liquid separator is illustrated, and the gas-liquid separator includes a shell 10, a coaxial tube 20 and an abutment frame 30; the shell 10 has an inner cavity 11, the shell 10 includes an outer shell 14 and a cover 15, the cover 15 is fixedly connected to the outer shell 14, the coaxial tube 20 is at least partially located in the inner cavity 11, the coaxial tube 20 includes an inner tube 21 and an outer tube 22, the inner tube 21 is fixedly connected or limitedly connected to the shell 10, and a flow channel is provided between the inner tube 21 and the outer tube 22; the abutment frame 30 includes a first limit assembly 31, along the radial direction of the gas-liquid separator, the first limit assembly 31 is located in the flow channel, the radial inner side of the first limit assembly 31 is limitedly connected to the inner tube 21, and the radial outer side of the first limit assembly 31 is limitedly connected to the outer tube 22. In this embodiment, the upper end of the coaxial tube 20 is riveted to the cover 15, the inner diameter of the outer tube 22 is larger than the outer diameter of the inner tube 21, and the outer tube 22 is sleeved on the outer periphery of the inner tube 21. The first stopper assembly 31 and the abutment frame 30 can be integrally formed by injection molding, and the injection mold has a longer life than the extrusion mold, so the production cost is lower. Specifically, the number of the first stopper assemblies 31 of the present application is multiple, and the multiple first stopper assemblies 31 are arranged circumferentially spaced from each other. Along the axial direction of the gas-liquid separator, the height of the outer tube 22 is lower than the height of the inner tube 21, so that the gas can enter the cavity of the inner tube 21 through the flow channel.

[0027] In an embodiment provided by the present application, by improving the limiting or fixing method between the inner tube 21 and the outer tube 22, the inner tube 21, the outer tube 22 and the first limiting assembly 31 are separated into multiple parts, and no longer need to be formed in one piece by extrusion. Modular production can be achieved to achieve rapid installation, mass production and reduce production costs. In addition, the first limiting assembly 31 can ensure the coaxiality of the inner tube 21 and the outer tube 22, and ensure that the coaxial tube 20 has a smooth air intake. Along the axial direction of the gas-liquid separator, the limiting assembly has a good limiting effect when it exceeds 40mm, and there is no need to limit the two ends. The accompanying drawings use a more complex two-end limiting, and in some embodiments, one-side limiting can be used, and the other end can adopt a conventional design.

[0028] Please refer to Figure 5 and Figure 6The first position-limiting assembly 31 includes a first inner arc plate 311, a first outer arc plate 312 and a first connecting piece 313; the first connecting piece 313 is respectively fixedly connected, or position-limitedly connected, or is an integral structure with the first inner arc plate 311 and the first outer arc plate 312, the first outer arc plate 312 is located radially outward of the first position-limiting assembly 31, and the first inner arc plate 311 is located radially inward of the first position-limiting assembly 31. In this embodiment, the first inner arc plate 311, the first outer arc plate 312 and the first connecting piece all extend along the axial direction of the gas-liquid separator.

[0029] The radial inner curvature of the first inner arc plate 311 is the same as the outer wall curvature of the inner tube 21, the first inner arc plate 311 abuts against the inner tube 21, and the first inner arc plate 311 can fit tightly against the inner tube 21. The radial outer curvature of the first outer arc plate 312 is the same as the inner wall curvature of the outer tube 22, the first outer arc plate 312 abuts against the outer tube 22, and the first outer arc plate 312 can fit tightly against the outer tube 22.

[0030] The terms "first", "second", "third" and "fourth" in this specification are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0031] It should be noted that the directional words such as up, down, left, right, front and back mentioned in this specification are based on the directions in the drawings of the specification and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0032] The portion where the first inner arc plate 311 contacts the inner tube 21 is defined as the first wall surface 3111; the portion where the first outer arc plate 312 contacts the outer tube 22 is defined as the second wall surface 3121. Along the circumference of the gas-liquid separator, the size of the first wall surface 3111 is larger than the size of the second wall surface 3121. Specifically, the size in this embodiment may be the width.

[0033] The first limiting assembly 31 includes a first rib 314, which is located on the radial inner side of the first inner arc plate 311 along the radial direction of the gas-liquid separator. The inner tube 21 has a first groove 211, which is recessed inward from the outer wall of the inner tube 21, and is arranged along the length direction of the inner tube 21. The first rib 314 is limited in cooperation with the first groove 211; the first limiting assembly 31 includes a second rib 315, which is located on the radial outer side of the first outer arc plate 312. The outer tube 22 has a second groove 221, which is recessed outward from the inner wall of the outer tube 22, and is arranged along the length direction of the outer tube 22. The second rib 315 is limited in cooperation with the second groove 221.

[0034] Please refer to Figure 4 The abutment frame 30 includes an annular portion 32 and an elastic portion 33; the annular portion 32 is sleeved on the outer side of the inner tube 21, and the elastic portion 33 is in a tile-like structure. Along the axial direction of the gas-liquid separator, one end of the elastic portion 33 is connected to the annular portion 32, and the end of the elastic portion 33 away from the annular portion 32 is inclined inward. The annular portion 32 is tubular, and the annular portion 32 is sleeved on the outer side of the inner tube 21. The inner diameter of the annular portion 32 is equal to the outer diameter of the inner tube 21. Without the action of external force, the inner size of the elastic portion 33 is smaller than the outer diameter of the inner tube 21. Under the action of external force, the inner size of the elastic portion 33 can be expanded to be equal to the outer diameter of the inner tube 21. The inner size of the elastic portion 33 is smaller than the outer diameter of the inner tube 21, but when it is elastically deformed by external force, the size of the elastic portion 33 changes within a certain range. When the elastic portion 33 is subjected to an external force reaching a certain value, the inner size of the elastic deformation portion is equal to the outer diameter of the inner tube 21.

[0035] There are multiple elastic parts 33 , which are arranged in a circle. The cross-section of the elastic part 33 is in an arc shape. Each elastic part 33 can be deformed individually, which is conducive to clamping the inner tube 21 .

[0036] Combination Fig.12 and Fig.13 As shown, the gas-liquid separator also includes a filter 40, and the filter 40 includes a second limit assembly 41. Along the radial direction of the gas-liquid separator, the second limit assembly 41 is located in the flow channel, and the radial inner side of the second limit assembly 41 is limitedly connected to the inner tube 21, and the radial outer side of the second limit assembly 41 is limitedly connected to the outer tube 22. The filter 40 has an oil return hole 42 in the center, and the high-speed airflow near the oil return hole 42 sucks the filtered refrigerant oil from the oil return hole 42 into the inner tube 21 and blows it into the gas. In this way, the external compressor can be lubricated to extend the life of the compressor. If there is no filter 40, the filtering function and the oil return function will be missing. Generally, the filter 40 can realize the oil return function by setting the oil return hole 42. If the filter 40 is not set and the oil return hole 42 is set separately, it is easy to get blocked.

[0037] The filter 40 can limit the relative position between the inner tube 21 and the outer tube 22. The inner tube 21 and the outer tube 22 are coaxially limited or fixed by the second limiting component 41 of the filter 40. The filter 40 is designed to be in the shape of a bottle cap. In this embodiment, the filter 40 also includes a side wall 43, and the side wall 43 is sleeved on the lower end of the outer tube 22. If the outer tube 22 is sleeved on the side wall 43 of the filter 40, it should be regarded as an equivalent design. Such means are conventional alternatives and are not described in detail. Of course, in some designs, the upper end of the inner tube 21 can pass through the cover 15. The limiting method of the inner tube 21 and the cover 15 can be a snap-on form, and the fixing method can be an interference fit. Other riveting methods or screw fixation are also regarded as equivalent designs.

[0038] Please refer to Figure 4 and Fig. 9 The abutment frame 30 includes a plurality of claws 34, each claw 34 is located between two adjacent elastic parts 33, and the claw 34 is limitedly matched with the first groove 211. Specifically, the claw 34 is at least partially embedded in the first groove 211, and the claw 34 abuts against the upper end surface of the inner tube 21, which is convenient for processing and has a good limiting function.

[0039] Please refer to Fig.14 The first groove 211 is recessed inward from the outer wall of the inner tube 21, and the wall forming the first groove 211 includes a first convex rib. The first convex rib is located in the cavity of the inner tube 21, which can guide the airflow to flow smoothly and increase the stability of the airflow. Preferably, the cross-sections of the inner tube 21 and the outer tube 22 are designed to be axisymmetric structures. The second groove 221 is recessed outward from the inner wall of the outer tube 22, and the wall forming the second groove 221 includes a second convex rib. The side wall 43 of the filter 40 is engaged with the outer tube 22 through the second convex rib, so that the filter 40 can be better fixed to the lower end of the outer tube 22.

[0040] Please refer to Fig.12 Specifically, the second position-limiting assembly 41 includes a second inner arc plate 411, a second outer arc plate 412, and a second connecting piece 413; the second connecting piece 413 is fixedly connected, or position-limitedly connected, or is an integral structure with the second inner arc plate 411 and the second outer arc plate 412, respectively; the second outer arc plate 412 is located radially outward of the second position-limiting assembly 41, and the second inner arc plate 411 is located radially inward of the second position-limiting assembly 41. In this embodiment, the second inner arc plate 411, the second outer arc plate 412, and the second connecting piece all extend along the axial direction of the gas-liquid separator.

[0041] Preferably, the radial inner curvature of the second inner arc plate 411 is the same as the outer wall curvature of the inner tube 21, the second inner arc plate 411 abuts against the inner tube 21, and the second inner arc plate 411 can fit tightly against the inner tube 21, and the radial outer curvature of the second outer arc plate 412 is the same as the inner wall curvature of the outer tube 22, the second outer arc plate 412 abuts against the outer tube 22, and the second outer arc plate 412 can fit tightly against the outer tube 22.

[0042] The second limiting assembly 41 includes a third rib 414 and a fourth rib 415. Along the radial direction of the gas-liquid separator, the third rib 414 is located on the radial inner side of the second inner arc plate 411, and the third rib 414 is limitedly matched with the first groove 211; the fourth rib 415 is located on the radial outer side of the second outer arc plate 412, and the second rib 315 is limitedly matched with the second groove 221.

[0043] Combination Figure 5 , Fig.10 , Fig.12 and Fig.14As shown, in this embodiment, the cross section of the first groove 211 is semicircular, the cross sections of the first rib 314, the second rib 315, the third rib 414 and the fourth rib 415 are all semicircular, the first rib 314 and the third rib 414 are embedded in the first groove 211, and the second rib 315 and the fourth rib 415 are embedded in the second groove 221, so that the structure is simple and the limiting effect is good. Such a design can not only strengthen the limiting effect of the first limiting component 31 and the second limiting component 41, but also increase the strength of the inner tube 21 and the outer tube 22 so that the inner tube 21 and the outer tube 22 are not easy to bend and deform. Further improve the coaxiality of the inner tube 21 and the outer tube 22. The first groove 211 is recessed inward from the outer wall of the inner tube 21, and the wall forming the first groove 211 includes convex ribs, which are located in the cavity of the inner tube 21, and can guide the airflow to flow smoothly and increase the stability of the airflow. As a preferred embodiment, the cross sections of the inner tube 21 and the outer tube 22 are designed as an axisymmetric structure.

[0044] Please refer to Figure 2 In some embodiments, the abutment frame 30 includes a bulk liquid cup 35, and the bulk liquid cup 35 includes a baffle 351 and a cup wall 352. Along the axial direction of the gas-liquid separator, the cup wall 352 extends from the baffle 351 toward the filter 40, and the cup wall 352 is arranged around the outer periphery of the baffle 351. There is a gap between the cup wall 352 and the wall forming the inner cavity 11; the shell 10 has an inlet 12 and an outlet 13, the baffle 351 is arranged opposite to the inlet 12, and the outlet 13 is connected to the inner tube 21. The bulk liquid cup 35 adopts an integrated design to reduce the number of parts and reduce the installation cost. In this embodiment, the first limit assembly 31 and the bulk liquid cup 35 can be integrally formed by injection molding, and the injection mold has a longer life than the extrusion mold, so the production cost is lower.

[0045] Please refer to Figure 7 In other embodiments, the abutment frame 30 includes a splash shield 36 and a bend 37. The splash shield 36 includes a cover 361 and a wall 362. The wall 362 extends from the cover 361 toward the filter 40 along the axial direction of the gas-liquid separator, and the wall 362 is arranged around the outer periphery of the cover 361. The housing 10 has an inlet 12 and an outlet 13. The bend 37 bends toward the wall forming the inner cavity 11. The bend 37 is connected to the inlet 12, and the outlet 13 is connected to the inner tube 21. The integrated design of the splash shield 36 can reduce the number of parts and reduce the installation cost.

[0046] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that those skilled in the art can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A gas-liquid separator, characterized in that: It comprises a housing (10), a coaxial tube (20) and an abutment frame (30); The housing (10) has an inner cavity (11), the coaxial tube (20) is at least partially located in the inner cavity (11), the coaxial tube (20) comprises an inner tube (21) and an outer tube (22), the inner tube (21) is fixedly connected or position-limitedly connected to the housing (10), and a flow channel is provided between the inner tube (21) and the outer tube (22); The abutment frame (30) comprises a first limiting assembly (31). Along the radial direction of the gas-liquid separator, the first limiting assembly (31) is located in the flow channel, the radial inner side of the first limiting assembly (31) is connected to the inner tube (21) in a limiting manner, and the radial outer side of the first limiting assembly (31) is connected to the outer tube (22) in a limiting manner.

2. The gas-liquid separator according to claim 1, characterized in that: The first limiting assembly (31) comprises a first inner arc plate (311), a first outer arc plate (312) and a first connecting member (313); The first connecting member (313) is respectively fixedly connected, or limit-connected, or is an integral structure with the first inner arc plate (311) and the first outer arc plate (312); the first outer arc plate (312) is located radially outside the first limit assembly (31), and the first inner arc plate (311) is located radially inside the first limit assembly (31).

3. The gas-liquid separator according to claim 2, characterized in that: The radial inner curvature of the first inner arc plate (311) is the same as the outer wall curvature of the inner tube (21), and the first inner arc plate (311) abuts against the inner tube (21); the radial outer curvature of the first outer arc plate (312) is the same as the inner wall curvature of the outer tube (22), and the first outer arc plate (312) abuts against the outer tube (22).

4. The gas-liquid separator according to claim 2 or 3, characterized in that: The portion where the first inner arc plate (311) contacts the inner tube (21) is defined as a first wall surface (3111); the portion where the first outer arc plate (312) contacts the outer tube (22) is defined as a second wall surface (3121), and along the circumference of the gas-liquid separator, the size of the first wall surface (3111) is greater than the size of the second wall surface (3121).

5. The gas-liquid separator according to claim 2 or 3, characterized in that: The first limiting assembly (31) comprises a first rib (314), and along the radial direction of the gas-liquid separator, the first rib (314) is located radially inward of the first inner arc plate (311), the inner tube (21) has a first groove (211), the first groove (211) is recessed inward from the outer wall of the first inner arc plate (311), and the first rib (314) is limitedly matched with the first groove (211); The first limiting assembly (31) comprises a second rib (315), the second rib (315) is located radially outside the first outer arc plate (312), the outer tube (22) has a second groove (221), the second rib (315) is recessed outward from the inner wall of the first outer arc plate (312), and the second rib (315) is limitedly matched with the second groove (221).

6. The gas-liquid separator according to claim 5, characterized in that: The abutment frame (30) comprises an annular portion (32) and an elastic portion (33); The annular portion (32) is sleeved on the outside of the inner tube (21); the elastic portion (33) is in a tile-like structure; along the axial direction of the gas-liquid separator, one end of the elastic portion (33) is aligned with the annular portion (32); and one end of the elastic portion (33) away from the annular portion (32) is inclined inwardly.

7. The gas-liquid separator according to claim 6, characterized in that: The abutment frame (30) comprises a plurality of claws (34), each of the claws (34) is located between two adjacent elastic parts (33), and the claws (34) are limitedly matched with the first groove (211).

8. The gas-liquid separator according to any one of claims 1 to 3 and 7, characterized in that: The gas-liquid separator further comprises a filter (40), wherein the filter (40) comprises a second limiting component (41), wherein the second limiting component (41) is located in the flow channel along the radial direction of the gas-liquid separator, wherein the radial inner side of the second limiting component (41) is connected to the inner tube (21) in a limiting manner, and the radial outer side of the second limiting component (41) is connected to the outer tube (22) in a limiting manner.

9. The gas-liquid separator according to claim 8, characterized in that: The second limiting assembly (41) comprises a second inner arc plate (411), a second outer arc plate (412) and a second connecting member (413); The second connecting member (413) is respectively fixedly connected, or limit-connected, or is an integral structure with the second inner arc plate (411) and the second outer arc plate (412); the second outer arc plate (412) is located radially outside the second limit assembly (41), and the second inner arc plate (411) is located radially inside the second limit assembly (41).

10. The gas-liquid separator according to claim 8, characterized in that: The abutment frame (30) comprises a bulk liquid cup (35), the bulk liquid cup (35) comprising a baffle (351) and a cup wall (352), the cup wall (352) extending from the baffle (351) toward the filter (40) along the axial direction of the gas-liquid separator, the cup wall (352) being arranged around the outer periphery of the baffle (351), and a gap being provided between the cup wall (352) and a wall forming the inner cavity (11); The housing (10) has an inlet (12) and an outlet (13); the baffle (351) is arranged opposite to the inlet (12); and the outlet (13) is connected to the inner tube (21).

11. The gas-liquid separator according to claim 8, characterized in that: The abutment frame (30) comprises a splash shield (36) and a curved pipe (37); the splash shield (36) comprises a cover portion (361) and a wall portion (362); along the axial direction of the gas-liquid separator, the wall portion (362) extends from the cover portion (361) toward the filter (40); and the wall portion (362) is arranged around the outer periphery of the cover portion (361); The shell (10) has an inlet (12) and an outlet (13), the curved pipe (37) is bent toward the wall forming the inner cavity (11), the curved pipe (37) is connected to the inlet (12), and the outlet (13) is connected to the inner pipe (21).

12. The gas-liquid separator according to claim 1, characterized in that: The first limiting assembly (31) comprises a first inner arc plate (311), a first outer arc plate (312) and a first connecting piece (313); the first connecting piece (313) is respectively fixedly connected to the first inner arc plate (311) and the first outer arc plate (312) or is connected in a limiting manner or is an integral structure; the first outer arc plate (312) is located on the radial outer side of the first limiting assembly (31), and the first inner arc plate (311) is located on the radial inner side of the first limiting assembly (31); the radial inner curvature of the first inner arc plate (311) is the same as the outer wall curvature of the inner tube (21); the first inner arc plate (311) and the inner tube (21) are connected in a radial direction to each other. ), the radial outer curvature of the first outer arc plate (312) is the same as the inner wall curvature of the outer tube (22), and the first outer arc plate (312) is in contact with the outer tube (22); the portion where the first inner arc plate (311) contacts the inner tube (21) is defined as a first wall surface (3111); the portion where the first outer arc plate (312) contacts the outer tube (22) is defined as a second wall surface (3121), along the circumferential direction of the gas-liquid separator, the size of the first wall surface (3111) is greater than the size of the second wall surface (3121); the first inner arc plate (311) includes a first rib (314), along the radial direction of the gas-liquid separator, The first rib (314) is located on the radial inner side of the first inner arc plate (311); the inner tube (21) has a first groove (211), the first groove (211) is recessed inward from the outer wall of the first inner arc plate (311), and the first rib (314) is limitedly matched with the first groove (211); the first outer arc plate (312) includes a second rib (315), the second rib (315) is located on the radial outer side of the first outer arc plate (312), the outer tube (22) has a second groove (221), the second rib (315) is recessed outward from the inner wall of the first outer arc plate (312), and the second rib (315) is (315) is limitedly matched with the second groove (221); the abutment frame (30) comprises an annular portion (32) and an elastic portion (33); the annular portion (32) is sleeved on the outside of the inner tube (21), the elastic portion (33) is in a tile-like structure, and along the axial direction of the gas-liquid separator, one end of the elastic portion (33) is aligned with the annular portion (32), and the end of the elastic portion (33) away from the annular portion (32) is inclined inwardly; the abutment frame (30) comprises a plurality of claws (34), each of the claws (34) is located between two adjacent elastic portions (33), and the claws (34) are limitedly matched with the first groove (211);The gas-liquid separator further comprises a filter (40), the filter (40) comprising a second limiting component (41), the second limiting component (41) being located in the flow channel along the radial direction of the gas-liquid separator, the radial inner side of the second limiting component (41) being connected to the inner tube (21) in a limiting manner, and the radial outer side of the second limiting component (41) being connected to the outer tube (22) in a limiting manner; the second limiting component (41) comprising a second inner arc plate (411), a second outer arc plate (412) and a second connecting member (413); the second connecting member (413) being fixedly connected, or being connected in a limiting manner, or being an integral structure to the second inner arc plate (411) and the second outer arc plate (412), respectively; the second outer arc plate (412) being located in the second limiting component The radial outer side of the second limit assembly (41), the second inner arc plate (411) is located at the radial inner side of the second limit assembly (41); the abutment frame (30) comprises a bulk liquid cup (35), the bulk liquid cup (35) comprises a baffle (351) and a cup wall (352), along the axial direction of the gas-liquid separator, the cup wall (352) extends from the baffle (351) toward the filter (40), the cup wall (352) is arranged around the outer periphery of the baffle (351), and a gap is formed between the cup wall (352) and the wall forming the inner cavity (11); the housing (10) has an inlet (12) and an outlet (13), the baffle (351) is arranged opposite to the inlet (12), and the outlet (13) is connected to the inner tube (21). ;

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