Liquid distributor assembly, rotary compressor and air conditioner

Abstract

The present application provides a liquid separator assembly, a rotor compressor and an air conditioner. The liquid separator assembly includes an annular liquid separator, which is sleeved on the outer periphery of the outer shell; the liquid separation cavity in the liquid separator is connected to the air intake port; along the axial direction of the outer shell, the inner wall of the liquid separator is provided with at least two sections: a first inner wall and a second inner wall, the diameter of the first inner wall is larger than the diameter of the second inner wall; the first inner wall and the part of the outer shell corresponding to the motor assembly are spaced apart; the second inner wall is fixedly provided on the outer shell. A gap is provided between the inner side wall of the annular liquid separator of the present application and the outer shell corresponding to the motor assembly in the compressor to prevent the heat generated by the operation of the motor assembly from being conducted into the liquid separator, thereby preventing the refrigerant intake in the liquid separator from overheating.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioners, and in particular relates to a liquid distributor assembly, a rotor compressor and an air conditioner. Background Art

[0002] Rotary compressors are widely used in refrigeration systems such as air conditioners, heat pumps, and refrigeration systems. Their conventional structure consists of a housing with an upper motor assembly and a lower pump assembly. The liquid separator is an essential component of a rotary compressor, providing voltage stabilization, oil and liquid separation, and filtration. Conventional rotary compressor designs place the liquid separator on one side of the compressor's exterior. This not only increases the overall radial size of the rotary compressor but also leads to a series of problems, such as the liquid separator's oscillation and excessive refrigerant aerodynamic noise. These issues have long been a pressing challenge for researchers.

[0003] Related technologies propose the use of an annular structure liquid separator, which is covered on the outer peripheral surface of the compressor housing to form a liquid separation cavity, which can solve the structural defects existing on the outer side of the compressor; however, since this annular structure liquid separator relies on the compressor housing for fixation, it will be tightly fitted with the compressor housing, which causes the heat generated by the motor assembly in the compressor housing to heat the refrigerant in the liquid separation cavity, thereby increasing the compressor suction superheat and reducing the performance of the compressor. Summary of the Invention

[0004] Therefore, the present application provides a liquid separator assembly, a rotor compressor and an air conditioner, which can solve the problem in the prior art that the refrigerant in the annular liquid separator is heated by the compressor, causing the compressor suction superheat to increase and reduce the performance of the compressor.

[0005] In order to solve the above problems, the present application provides a liquid separator assembly for separating gas and liquid from the refrigerant entering the compressor. A coaxial pump assembly and a motor assembly are provided in the housing of the compressor; an air intake of the pump assembly is provided on the housing; the liquid separator assembly comprises:

[0006] An annular liquid separator is sleeved on the outer periphery of the housing; the liquid separation cavity in the liquid separator is communicated with the air inlet;

[0007] Along the axial direction of the housing, the inner wall of the liquid dispenser is provided with at least two sections: a first inner wall and a second inner wall, wherein the diameter of the first inner wall is greater than the diameter of the second inner wall;

[0008] The first inner wall and the portion of the outer shell corresponding to the motor assembly are spaced apart; the second inner wall is fixedly arranged on the outer shell.

[0009] In some embodiments,

[0010] The diameter of the first inner wall is 5-10 mm larger than the diameter of the second inner wall.

[0011] In some embodiments,

[0012] The second inner wall is fixed to a portion of the outer shell corresponding to a portion between the motor assembly and the pump body assembly.

[0013] In some embodiments,

[0014] The liquid dispenser is provided with an exhaust portion communicated with the air inlet, and the exhaust portion is matched with a cover provided on the air inlet.

[0015] In some embodiments,

[0016] A flow guide tube is provided in the liquid separation cavity, the outlet end of the flow guide tube is communicated with the air inlet, and the inlet end is higher than the outlet end.

[0017] According to another aspect of the present application, a rotary compressor is provided, comprising the liquid separator assembly as described above.

[0018] In some embodiments,

[0019] A filter is provided in the flow path passing through the liquid separation cavity to filter and remove impurities from the fluid sent into the pump body assembly.

[0020] In some embodiments,

[0021] When a flow guide tube is provided in the liquid separation cavity, an air intake pipe assembly is provided on the inlet side of the flow path. On the axial projection surface of the shell, the air intake pipe assembly and the flow guide tube are arranged at 90°-180°.

[0022] In some embodiments,

[0023] When a flow guide tube is provided in the liquid separation cavity, an air inlet pipe is provided on the inlet side of the flow path. The air inlet pipe is provided on the outer wall of the liquid separator on the side where the flow guide tube is located, and the air inlet pipe is lower than the inlet end of the flow guide tube.

[0024] According to another aspect of the present application, an air conditioner is provided, comprising the liquid separator assembly as described above or the rotor compressor as described above.

[0025] The present application provides a liquid separator assembly for separating gas and liquid from the refrigerant entering the compressor, wherein a coaxial pump body assembly and a motor assembly are provided in the outer shell of the compressor; an air intake port of the pump body assembly is provided on the outer shell; the liquid separator assembly comprises: an annular liquid separator, which is sleeved on the outer periphery of the outer shell; a liquid separation cavity in the liquid separator is connected to the air intake port; along the axial direction of the outer shell, the inner wall of the liquid separator is provided with at least two sections: a first inner wall and a second inner wall, the diameter of the first inner wall being larger than the diameter of the second inner wall; the first inner wall and the part of the outer shell corresponding to the motor assembly are spaced apart; the second inner wall is fixedly provided on the outer shell.

[0026] This application has the following beneficial effects:

[0027] A gap is set between the inner wall of the annular liquid distributor and the outer shell corresponding to the motor assembly in the compressor to prevent the heat generated by the operation of the motor assembly from being transferred into the liquid distributor, thereby preventing the refrigerant suction air in the liquid distributor from overheating. At the same time, the existence of the gap can also reduce noise, thereby relatively improving the performance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0029] Figure 1 This is a cross-sectional structural diagram of a rotary compressor according to an embodiment of the present application;

[0030] Figure 2 Another cross-sectional structural diagram of the rotary compressor according to an embodiment of the present application;

[0031] Figure 3 This is a third cross-sectional structural diagram of the rotary compressor according to an embodiment of the present application;

[0032] Figure 4 This is a fourth cross-sectional structural diagram of the rotary compressor according to an embodiment of the present application;

[0033] Figure 5 This is a three-dimensional schematic diagram of an annular liquid separator according to an embodiment of the present application;

[0034] Figure 6 This is a cross-sectional view of the annular liquid separator according to an embodiment of the present application.

[0035] The reference numerals indicate:

[0036] 01. Upper cover assembly; 02. Outer shell;

[0037] 03. Liquid dispenser; 31. First inner wall; 32. Second inner wall;

[0038] 04. Motor assembly; 05. Pump body assembly; 06. Lower cover assembly;

[0039] 11. Flow guide tube; 12. Liquid distributor housing;

[0040] 13. Intake pipe; 14. Support pipe; 15. Filter element; 16. Adapter;

[0041] 17. Liquid separation chamber; 18. Oil return hole; 21. Top of the liquid separator; 22. Exhaust part. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0043] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0046] See also Figures 1 to 6 As shown, according to an embodiment of the present application, a liquid separator assembly is provided for separating gas and liquid from the refrigerant entering the compressor. A coaxial pump assembly 05 and a motor assembly 04 are provided in the housing 02 of the compressor; an air intake port of the pump assembly 05 is provided on the housing 02; the liquid separator assembly includes:

[0047] The annular liquid separator 03 is sleeved on the outer periphery of the housing 02; the liquid separation cavity 17 in the liquid separator 03 is connected to the air inlet;

[0048] Along the axial direction of the housing 02 , the inner wall of the liquid distributor 03 is provided with at least two sections: a first inner wall 31 and a second inner wall 32 , wherein the diameter of the first inner wall 31 is greater than the diameter of the second inner wall 32 ;

[0049] The first inner wall 31 and the portion of the outer shell 02 corresponding to the motor assembly 04 are spaced apart; the second inner wall 32 is fixedly disposed on the outer shell 02 .

[0050] The present application sets a gap between the inner wall of the annular liquid separator 03 and the outer shell 02 corresponding to the motor assembly 04 in the compressor to prevent the heat generated by the operation of the motor assembly 04 from being transferred to the liquid separator 03, thereby preventing the refrigerant suction in the liquid separator 03 from overheating. At the same time, the existence of the gap can also reduce noise, thereby relatively improving the performance of the compressor.

[0051] The annular liquid separator 03 is mounted on the outer periphery of the compressor's outer shell 02. The present application fixes the liquid separator 03 on the outer shell 02 through the second inner wall 32, and uses the first inner wall 31 with a larger diameter of the liquid separator 03 to gap-wrap the portion of the outer shell 02 opposite to the motor assembly 04, so that there is a gap between the portion of the outer shell 02 and the first inner wall 31 of the liquid separator 03. This can isolate the heat generated by the operation of the motor assembly 04 from being transferred to the liquid separator 03, thereby avoiding the occurrence of intake overheating caused by the refrigerant in the liquid separator 03 being heated; and the liquid separator 03 itself is fixed to the outer shell 02 through the second inner wall 32.

[0052] The compressor noise is mainly composed of the electromagnetic noise of the motor and the exhaust noise of the pump valve. The noise propagates outward through the compressor casing 02. Due to the gap between the first inner wall 31 and the compressor casing 02 in this application, the noise is attenuated. In principle, noise is the propagation of sound waves. After the sound wave is transmitted from the side of the compressor casing, it directly hits the inner shell of the liquid separator 03. Part of it is absorbed by the liquid separator 03 casing, and part of it is reflected back and continues to be absorbed by the compressor casing, which greatly reduces the noise of the entire compressor.

[0053] The gap between the first inner wall 31 and the compressor housing 02 in the present application can also block the propagation of electromagnetic noise of the motor assembly 04 and exhaust noise of the exhaust valve plate in the pump body assembly 05, thereby reducing the noise radiation intensity of the entire compressor.

[0054] In some embodiments,

[0055] The diameter of the first inner wall 31 is 5-10 mm larger than the diameter of the second inner wall 32 .

[0056] The diameter of the first inner wall 31 is larger than that of the second inner wall 32, and the difference between the two is 5-10 mm. That is to say, the gap between the first inner wall 31 and the compressor housing 02 is 5-10 mm, which can both insulate and reduce noise without increasing the radial size of the entire equipment.

[0057] In some embodiments,

[0058] The second inner wall 32 is fixed to the portion of the outer shell 02 corresponding to the portion between the motor assembly 04 and the pump body assembly 05 .

[0059] The second inner wall 32 is fixed at the position of the compressor housing 02 and is arranged on the outer periphery of the housing 02 corresponding to the motor assembly 04 and the pump body assembly 05. This can reduce the transfer area of ​​heat in the compressor to the liquid separator 03 through the second inner wall 32, thereby reducing the refrigerant in the liquid separator 03 from being heated and causing suction overheating.

[0060] In some embodiments,

[0061] The liquid dispenser 03 is provided with an exhaust portion 22 communicated with the air inlet, and the exhaust portion 22 is matched with the air inlet.

[0062] The liquid separator 03 adopts an exhaust portion 22 structure with a partial cover of the air intake, thereby reducing the contact area between the liquid separator 03 and the shell 02, reducing the heat inside the compressor transferred to the liquid separator 03 to heat the refrigerant, thereby preventing the refrigerant from being heated and causing overheating of the intake air.

[0063] In some embodiments,

[0064] A flow guide tube 11 is provided in the liquid separation chamber 17 . The outlet end of the flow guide tube 11 is communicated with the air inlet, and the inlet end of the flow guide tube 11 is higher than the outlet end.

[0065] A guide tube 11 is provided in the liquid separation chamber 17, and the inlet end of the guide tube 11 is higher than the outlet end connected to the air intake port, thereby improving the separation effect of gas and liquid in the liquid separation chamber 17, reducing the entry of the separated liquid into the air intake port, and avoiding the occurrence of liquid hammer in the pump body assembly 05.

[0066] According to another aspect of the present application, a rotary compressor is provided, comprising the liquid separator assembly as described above.

[0067] In some embodiments,

[0068] A filter element 15 is provided in the flow path passing through the liquid separation chamber 17 to filter and remove impurities from the fluid sent into the pump body assembly 05 .

[0069] The liquid separation chamber 17 is used to perform gas-liquid separation treatment on the refrigerant sent into the pump body assembly 05 in advance to ensure that the liquid does not enter the pump body assembly 05; however, during the circulation of the refrigerant, some components will drop residues into the refrigerant during operation, so it is necessary to set a filter 15 to filter the residue to prevent it from entering the pump body assembly 05 and damaging the components of the pump body.

[0070] The filter element 15 can be set at the air inlet of the liquid separation chamber 17, or at a position of the liquid separation chamber 17 close to the air inlet, or between the air inlet and the air inlet, to filter the refrigerant entering the liquid separation chamber 17.

[0071] In some embodiments,

[0072] When the guide tube 11 is provided in the liquid separation chamber 17 , an air intake pipe assembly is provided on the inlet side of the flow path. On the axial projection surface of the shell 02 , the air intake pipe assembly and the guide tube 11 are arranged at 90°-180°.

[0073] A guide tube 11 is set in the liquid separation chamber 17, and the outlet end of the guide tube 11 is connected to the air intake port. In order to achieve a balanced shape of the entire device, an air intake pipe assembly is set at the air inlet of the liquid separation chamber 17, and the air intake pipe assembly and the guide tube 11 are arranged at 90°-180° on the axial projection surface of the outer shell 02. The optimal setting of the two is 180°.

[0074] Correspondingly, in a structure with an intake pipe assembly, the filter element 15 can be disposed in the intake pipe assembly to directly filter the intake air; it can also be disposed at the inlet end of the flow guide pipe 11 to filter the separated gas.

[0075] As for the air intake pipe assembly containing the filter element 15, the intake pipe 13, the support pipe 14, the filter element 15 and the adapter 16 can be welded into an integral structure, the intake pipe 13 and the adapter 16 are respectively connected to the two ends of the support pipe 14, the filter element 15 is arranged in the support pipe 14, and the other end of the adapter 16 is connected to the liquid separation chamber 17; a simplified structure can also be adopted, and the intake pipe 13 is directly connected to the liquid separation chamber 17. In this case, the filter element 15 is arranged on the inlet end of the guide pipe 11.

[0076] The structure of the flow guide tube 11 may be a partially bent L-shaped elbow, wherein the elbow body extends axially along the outer shell 02 and is partially bent to communicate with the air inlet.

[0077] In some embodiments,

[0078] When a flow guide tube 11 is provided in the liquid separation chamber 17 , an air inlet pipe is provided on the inlet side of the flow path. The air inlet pipe is provided on the outer wall of the liquid separator 03 on the side where the flow guide tube 11 is located, and the air inlet pipe is lower than the inlet end of the flow guide tube 11 .

[0079] In a structure where the flow guide tube 11 is provided in the liquid separation chamber 17, the position of the intake pipe can be improved and placed on the same side of the flow guide tube 11. The intake pipe 13 only needs to be lower than the inlet end of the flow guide tube 11 to prevent the liquid refrigerant sucked in by the intake pipe 13 from directly entering the flow guide tube 11. This type of compressor can further reduce the radial dimensions of the entire machine and can also realize the pressure stabilization, filtration, oil separation and liquid separation functions of the liquid separator 03.

[0080] The structure of the compressor is described in detail below.

[0081] A compressor includes an upper cover assembly 01, a shell assembly, an annular liquid separator 03, a motor assembly 04, a pump body assembly 05 and a lower cover assembly 06. A liquid separator chamber 17 is formed in the shell of the liquid separator 03, and a guide tube 11 with a curved pipe structure is provided in the liquid separator chamber 17. The liquid separator chamber 17 is connected to the air intake pipe assembly, and the air intake pipe assembly is mainly composed of an air intake pipe 13, a support tube 14, a filter element 15 and an adapter 16. The liquid separator 03 covers the outer wall surface of the shell assembly and is connected to the shell assembly by ring welding; the liquid separator 03 shell and the shell assembly together enclose the liquid separator chamber 17, and the liquid separator chamber 17 plays the role of stabilizing the suction pressure, separating the liquid refrigerant, and separating the lubricating oil. The filter element 15 plays the role of filtering impurities, and the filter element 15 is cold-pressed in the support tube 14; a plurality of oil return holes 18 are processed on the guide tube 11 to realize the oil return function.

[0082] The shell of the liquid distributor 03 can be formed in one piece or welded into multiple sections.

[0083] The compressor manufacturing process is as follows: 1. Install the upper cover assembly 01, shell assembly, motor assembly 04, pump body assembly 05 and lower cover assembly 06 together; 2. Weld the liquid distributor 03 shell, suction pipe 13, support pipe 14, filter element 15, adapter 16 into a whole; 3. Weld the guide pipe 11 to the compressor pump body suction port; 4. Put the liquid distributor assembly on the outer wall of the shell assembly and connect it by ring welding.

[0084] The part based on the liquid separator component is spaced apart from the shell component, so that the low-temperature refrigerant gas in the liquid separation chamber 17 is not heated by the high-temperature shell component (especially the motor), thereby reducing the compressor suction superheat and improving the performance of the annular liquid separator 03 type compressor.

[0085] The intake pipe 13 and the guide pipe 11 are respectively located at the two ends of the shell assembly in the radial direction, and there is an angle of 180° between the two. The outer diameter of the liquid separator 03 shell is 1.2 to 1.5 times the outer diameter of the shell assembly, the height of the liquid separator 03 shell is 0.5 to 1 times the height of the shell assembly, the volume of the liquid separation chamber 17 is 30 to 40 times the displacement of the compressor, the wall thickness of the liquid separator 03 shell is 1 to 5 mm, the diameter of the oil return hole 18 is φ1 to φ3, and the top end of the guide pipe 11 is 10 to 30 mm away from the top end of the liquid separator 03 shell.

[0086] The annular liquid separator 03 structure of the present application reduces the radial size of the entire compressor without increasing its axial size; it basically solves the up and down swinging problem of the liquid separator 03, reduces the noise radiation intensity and vibration amplitude of the entire compressor, and is beneficial to the heat dissipation of the compressor; it reduces the volume of the entire machine and saves production and transportation costs.

[0087] The lower edge of the liquid separator 03 shell is lower than the bottom end of the pump body suction port. The radius of the guide tube 11 side in the liquid separator 03 shell can be set to be larger than the radius of the suction pipe 13 side. However, due to the presence of the suction pipe 13, the support tube 14 and the adapter 16, the problem of unstable center of gravity of the traditional rotor compressor is solved. The center of gravity is approximately located at the center of gravity of the compressor body, which is beneficial to reducing the offset vibration noise of the compressor.

[0088] The relative optimal angle between the guide pipe 11 and the intake pipe 13 is 180°, but it does not have to be 180° along the circumferential direction, that is, the angle can be 90°~180°, as long as the liquid refrigerant sucked into the intake pipe 13 is not directly injected into the guide pipe 11, the optimal inner diameter of the intake pipe 13 and the guide pipe 11 is φ12 or φ16, and different inner diameter sizes can be set according to the different displacement of the compressor.

[0089] The gap between the housing of the liquid dispenser 03 and the housing assembly is a non-through structure to prevent the suction air from being heated. The bottom of the gap should be higher than the upper part of the pump assembly 05 and lower than the lower part of the motor assembly 04. The outer diameter of the gap should be 5-10mm larger than the outer diameter of the pump assembly 05.

[0090] The outer diameter of the liquid separator 03 shell is larger than the outer diameter of the shell assembly. For single-cylinder rotor compressors, the outer diameter of the liquid separator 03 shell should be more than 18mm larger than the outer diameter of the shell assembly; for double-cylinder and three-cylinder compressors, it is necessary to calculate based on the minimum volume of suction pressure stabilization, but the minimum should be 18mm.

[0091] The shell of the liquid separator 03 can also be divided into two parts, namely the top of the liquid separator 03 and the exhaust part 22 covered by the air inlet of the pump body. The top of the liquid separator 03, the exhaust part 22 and the shell assembly together enclose the liquid separation cavity 17.

[0092] The filter element 15 can also be installed on the inlet end of the guide tube 11, and the original suction pipe 13, support pipe 14 and adapter 16 can be optimized into a simple suction pipe 13, such as Figure 3 This compressor structure can further reduce the radial size of the entire machine and can also realize the functions of pressure stabilization, filtration, oil separation and liquid separation of the liquid separator 03.

[0093] In addition to the oil return hole 18, the present invention can also adopt a capillary oil return method and a siphon oil return method.

[0094] The present invention can significantly reduce the electromagnetic noise of the motor and the deflection noise of the liquid distributor 03 of the rotor compressor, and can reduce the noise and vibration of the entire compressor to less than 50% of that of a conventional compressor. The present invention can also reduce the radial size of the entire compressor by more than 30%.

[0095] According to another aspect of the present application, an air conditioner is provided, comprising the liquid separator assembly as described above or the rotor compressor as described above.

[0096] It is easy for those skilled in the art to understand that the above embodiments can be freely combined and superimposed on the premise that there is no conflict.

[0097] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above description is merely a preferred embodiment of the present application. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A liquid separator assembly for separating gas and liquid from refrigerant entering a compressor, wherein a coaxial pump assembly (05) and a motor assembly (04) are provided in a housing (02) of the compressor; an air intake port of the pump assembly (05) is provided on the housing (02); and the invention is characterized in that: The dispenser assembly comprises: An annular liquid separator (03) is sleeved on the outer periphery of the housing (02); a liquid separation cavity (17) in the annular liquid separator (03) is communicated with the air inlet; Along the axial direction of the housing (02), the inner wall of the annular liquid separator (03) is provided with at least two sections: a first inner wall (31) and a second inner wall (32), wherein the diameter of the first inner wall (31) is greater than the diameter of the second inner wall (32); The first inner wall (31) and the portion of the housing (02) corresponding to the motor assembly (04) are spaced apart, and a gap is formed between the first inner wall (31) and the housing (2), wherein the bottom end of the gap is higher than the upper portion of the pump assembly (05) and lower than the lower portion of the motor assembly (04); the gap can reduce the heat generated by the operation of the motor assembly (04) from being transferred to the annular liquid distributor (03); The second inner wall (32) is fixedly arranged on the outer shell (02).

2. The liquid dispenser assembly according to claim 1, characterized in that: The diameter of the first inner wall (31) is 5-10 mm larger than the diameter of the second inner wall (32).

3. The liquid dispenser assembly according to claim 2, characterized in that: The second inner wall (32) is fixed to the portion of the outer shell (02) corresponding to the portion between the motor assembly (04) and the pump body assembly (05).

4. The liquid dispenser assembly according to claim 2, characterized in that: The annular liquid separator (03) is provided with an exhaust portion (22) communicated with the air inlet, and the exhaust portion (22) is matched with a cover provided on the air inlet.

5. The liquid dispenser assembly according to any one of claims 1 to 4, characterized in that: A flow guide tube (11) is provided in the liquid separation chamber (17), the outlet end of the flow guide tube (11) is communicated with the air intake port, and the inlet end is higher than the outlet end.

6. A rotary compressor, characterized in that: The device comprises a liquid dispenser assembly according to any one of claims 1 to 5.

7. The rotary compressor according to claim 6, characterized in that: A filter element (15) is provided in the flow path passing through the liquid separation cavity (17) to filter and remove impurities from the fluid sent into the pump body assembly (05).

8. The rotary compressor according to claim 7, characterized in that: When a flow guide tube (11) is provided in the liquid separation chamber (17), an air intake pipe assembly is provided on the inlet side of the flow path, and on the axial projection surface of the housing (02), the air intake pipe assembly and the flow guide tube (11) are arranged at 90°-180°.

9. The rotary compressor according to claim 7, characterized in that: When a flow guide tube (11) is provided in the liquid separation chamber (17), an air inlet pipe is provided on the inlet side of the flow path, and the air inlet pipe is provided on the outer wall of the annular liquid separator (03) on the side where the flow guide tube (11) is located, and the air inlet pipe is lower than the inlet end of the flow guide tube (11).

10. An air conditioner, characterized in that: It comprises the liquid separator assembly according to any one of claims 1 to 5 or the rotor compressor according to any one of claims 6 to 9.

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