Annular liquid distributor, compressor and air conditioner

Abstract

The present invention provides an annular liquid separator, a compressor and an air conditioner. The annular liquid separator is sleeved on the outer wall surface of the compressor shell. The annular liquid separator includes an annular liquid separator cavity. The annular liquid separator cavity is provided with an inlet and an outlet. A filter is provided in the annular liquid separator cavity. The filter covers the inlet. The shortest flow path distance of the gas flowing from the inlet to the outlet is greater than the maximum straight-line distance between the inlet and the outlet, which effectively reduces the oil droplets and impurities entering the annular liquid separator, thereby reducing the impurities and oil droplets entering the pump body and improving the stability of the compressor operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of compressors, and in particular relates to an annular liquid distributor, a compressor and an air conditioner. Background Art

[0002] Compressors are widely used in refrigeration systems such as air conditioners, heat pumps, and refrigeration systems. The liquid separator on the compressor is one of the essential components of the compressor, and plays the role of voltage stabilization, oil separation, liquid separation, and filtering. The general liquid separator is located on one side of the compressor, which not only increases the overall radial size of the compressor, but also causes a series of problems such as the up and down swinging of the liquid separator and excessive aerodynamic noise of the refrigerant. The related technology solves the problems of large radial size, up and down swinging, and large refrigerant startup noise by setting an annular liquid separator and putting the annular liquid separator on the compressor. However, the annular liquid separator in the related technology cannot prevent impurities and oil droplets in the liquid separator cavity from entering the pump body, thereby causing adverse effects on the pump body.

[0003] How to improve the separation and filtration efficiency of the annular liquid separator to effectively reduce the amount of liquid entering the pump body is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] Therefore, the present invention provides an annular liquid separator, a compressor and an air conditioner, which effectively improve the liquid separation efficiency of the annular liquid separator, thereby reducing the liquid entering the pump body and improving the working stability of the compressor.

[0005] In the first aspect, the present invention provides an annular liquid separator, which is mounted on the outer wall of the compressor casing, and the annular liquid separator includes an annular liquid separator chamber, which is provided with an inlet and an outlet. A filter element is provided in the annular liquid separator chamber, and the filter element covers the inlet. The shortest flow path distance of the gas from the inlet to the outlet is greater than the maximum straight-line distance between the inlet and the outlet.

[0006] In some embodiments, any straight line connecting the inlet and the outlet is L1. When L1 does not intersect with the inner boundary of the annular liquid separation chamber, the filter element includes a blocking plate, and L1 intersects with the blocking plate; when L1 intersects with the inner boundary of the annular liquid separation chamber, the filter element as a whole is a mesh structure.

[0007] In some embodiments, the annular liquid separator includes an upper cover plate and an outer ring plate; the inlet is arranged on the upper cover plate, and the outlet is arranged on the outer ring plate; when the blocking plate is provided, the lower end of the blocking plate is lower than the lowest point of the outlet.

[0008] In some embodiments, the filter element is a hexahedron, and the inner cavity of the hexahedron is a filter cavity; an air inlet is formed on a side plate of the hexahedron, and the air inlet is connected to the inlet; when a blocking plate is provided, the blocking plate is constituted as a side plate in the hexahedron, and except for the side plate where the air inlet is located and the blocking plate, the remaining side plates are all mesh plates.

[0009] In some embodiments, when a blocking plate is provided, a first expansion space is formed between the blocking plate and the outer ring plate, and an expansion direction of the first expansion space is toward a circumferential direction of the outer ring plate.

[0010] In some embodiments, when the position of the blocking plate enables a radial line of the outer ring plate to pass through the outlet and the blocking plate at the same time, a second expansion space is formed between the blocking plate and the outer ring plate, and the expansion direction of the second expansion space is downward.

[0011] In some embodiments, when an outer ring plate is provided, on the axial projection of the annular liquid separator, the line connecting the center of the inlet and the center of the outer ring plate is L2, the line connecting the center of the outlet and the center of the outer ring plate is L3, and the angle between L2 and L3 is α, then α=0°, or, 0<α≤90°, or, 90<α≤80°.

[0012] In a second aspect, the present invention further provides a compressor comprising a housing and the annular liquid separator, wherein the annular liquid separator is sleeved on the housing.

[0013] In some embodiments, the housing includes an annular side plate. When an outer ring plate is provided, the space between the outer ring plate and the annular side plate forms a liquid separation chamber. In some embodiments, the compressor includes a pump assembly and a motor assembly, and the annular liquid separator includes a lower base plate. When the pump assembly is located below the motor assembly, the upper side of the lower base plate is higher than the upper end surface of the pump assembly. When the pump assembly is located above the motor assembly, the lower side of the lower base plate is higher than the lower end surface of the stator of the motor assembly.

[0014] In a third aspect, the present invention provides an air conditioner comprising the compressor as claimed in the claims above.

[0015] The present invention provides a filter element at the inlet, which makes the shortest flow path of the gas flowing from the inlet to the outlet greater than the maximum straight-line distance from the inlet to the outlet, thereby increasing the probability of the gas colliding with the solid structure during the flow process, thereby improving the efficiency of separating the liquid in the gas; it also reduces the speed at which the gas flows out of the filter element, improves the filtering effect of the filter element on impurities in the gas, and thus reduces the liquid and impurities that follow the gas into the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention 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.

[0017] Figure 1 1 is a schematic diagram of an annular liquid distributor according to an embodiment of the present invention being sleeved on a compressor;

[0018] Figure 2 This is an embodiment of the present invention Figure 1 AA section view in the figure;

[0019] Figure 3 The cross section of the filter element of the embodiment of the present invention is a triangle. Figure 1 AA section view in the figure;

[0020] Figure 4 This is an embodiment of the present invention Figure 1 Middle partial schematic diagram;

[0021] Figure 5 is a schematic diagram of a filter element according to an embodiment of the present invention;

[0022] Figure 6 This is an embodiment of the present invention Figure 1 Schematic top view of ;

[0023] Figure 7 Schematic diagram of an embodiment of the present invention in which the connecting line L1 between the inlet and the outlet does not intersect the inner boundary of the annular liquid separation chamber;

[0024] Figure 8 Schematic diagram of the embodiment of the present invention when the connecting line L1 between the inlet and the outlet intersects the inner boundary of the annular liquid separation chamber.

[0025] The accompanying drawings are:

[0026] 1. Annular liquid separator; 2. Outer shell; 201. Upper cover assembly; 202. Lower cover assembly; 203. Annular side plate; 101. Inlet; 102. Outlet; 103. Annular liquid separation chamber; 104. Outer ring plate; 105. Inner ring plate; 106. Lower base plate; 107. Upper cover plate; 3. Filter element; 301. Blocking plate; 401. First flared space; 402. Second flared space; 501. Rotor assembly; 502. Motor assembly; 601. Inlet pipe; 602. Bend pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all 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 invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, 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 the present invention 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 the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0029] 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.

[0030] 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 the present invention.

[0031] The present invention provides an annular liquid separator, a compressor and an air conditioner, which effectively reduce the oil droplets and impurities entering the annular liquid separator, thereby reducing the impurities and oil droplets entering the pump body and improving the working stability of the compressor.

[0032] Combined with attachment Figure 1-8The present invention provides an annular liquid separator, which is sleeved on the outer wall of the compressor casing 2. The annular liquid separator 1 includes an annular liquid separator chamber 103, which is provided with an inlet 101 and an outlet 102. A filter element 3 is provided in the annular liquid separator chamber 103, and the filter element 3 covers the inlet 101. The shortest flow path distance of gas from the inlet 101 to the outlet 102 is greater than the maximum straight-line distance between the inlet 101 and the outlet 102. Both the inlet and the outlet are higher than the lowest point of the annular liquid separator chamber 103, so that the lower portion of the annular liquid separator chamber forms a space for accommodating the separated liquid. The present application sets a filter element 3 at the inlet 101, and the filter element 3 covers the inlet 101, so that the gas (the gas includes gaseous refrigerant, impurities and oil droplets, which will not be specifically explained below for the convenience of description) enters the annular liquid separator 1 through the inlet 101, and some oil droplets, some liquid refrigerant and most impurities in the gas are filtered and separated by the filter element 3, and the very few impurities remaining in the gas are within the allowable range; since the impurities are filtered and collected in the filter element 3, this prevents the impurities from entering the pump body with the refrigerant. After the gas flows out of the filter element 3, since the shortest flow path of the gas from the inlet 101 to the outlet 102 is greater than the maximum straight-line distance from the inlet 101 to the outlet 102, the gas will inevitably collide with the physical structure in the separator during the flow. During the collision, the oil droplets and liquid refrigerant adhere to the physical structure, achieving gas-liquid separation; at the same time, the oil droplets and refrigerant with larger particle sizes will also fall downward under the action of gravity, performing oil-gas separation; thus, the gas-liquid separation efficiency and the filter's efficiency in filtering impurities are improved; the gaseous refrigerant is discharged from the outlet 102 into the pump body, greatly reducing the amount of liquid refrigerant entering the pump body; through the above separation process, the impurities, oil droplets and liquid refrigerant contained in the gas discharged from the outlet 102 are greatly reduced. The annular separator 1 can play the role of filtering, stabilizing pressure, separating oil and liquid. When the gas flows in the annular separator 1, due to the presence of the annular annular liquid separation chamber 103, the gas gradually decays inside it, which is conducive to reducing the intensity of noise radiation to the outside. Since the center of gravity of the annular liquid distributor 1 and the center of gravity of the compressor have a high degree of coincidence, it is beneficial to reduce the vibration of the compressor and the annular liquid distributor 1 as a whole.

[0033] Compared with the cylindrical liquid distributor arranged on one side of the compressor, the present application sets the annular liquid distributor 1 on the compressor, which reduces the radial size of the entire compressor (including the liquid distributor), solves the problem of offset swing of the liquid distributor, and reduces the overall vibration and noise; the electromagnetic noise of the compressor using the annular liquid distributor 1 is compared with the existing cylindrical liquid distributor arranged on one side of the compressor. The noise is reduced by more than 50%, and the radial size can be reduced by more than 30%.

[0034] The outlet 102 is at a certain distance from the bottom of the annular liquid separator 1, and the space within this distance is used to store the separated lubricating oil and liquid refrigerant; in order to prevent the separated lubricating oil and liquid refrigerant from entering the filter element 3, the bottom of the filter element 3 is also at a certain distance from the bottom of the annular liquid separator 1.

[0035] Preferably, Figure 7 and Figure 8 Any straight line connecting the inlet 101 and the outlet 102 is L1. When L1 does not intersect with the inner boundary of the annular liquid separation chamber 103, the filter element 3 includes a blocking plate 301, and L1 intersects with the blocking plate 301; when L1 intersects with the inner boundary of the annular liquid separation chamber, the filter element 3 as a whole is a mesh structure.

[0036] Figure 7 and Figure 8 The inlet 101 is not shown, and L1 is only a schematic line. When L1 does not intersect with the inner boundary of the annular liquid separation chamber 103, as shown in FIG. Figure 7 As shown, if the filter element 3 does not have a blocking plate 301, the shortest flow path of the gas from the inlet 101 to the outlet 102 is the straight line between the inlet 101 and the outlet 102. The gas will flow quickly through the filter element 3 and then flow to the outlet 102 and be discharged from the outlet 102. Since the probability of collision with the solid structure is greatly reduced, and the flow speed of the gas from the inlet 101 to the outlet 102 is relatively fast, the oil droplets in the gas cannot be effectively separated and are discharged from the outlet 102 along with the gas; in this case, by providing the blocking plate 301, the blocking plate 301 forms a blocking and guiding effect on the gas, so that the gas will collide with the blocking member to a certain extent when it is in the filter element 3, so that the speed of the gas is reduced when it flows out of the filter element 3, and the path is extended, thereby improving the filtration efficiency of impurities and the separation efficiency of liquids (liquids include lubricating oil and liquid refrigerant).

[0037] Due to the structural characteristics of the annular liquid separation cavity 103 itself, it includes an inner boundary close to the center line of the annular liquid separation cavity 103 and an outer boundary away from the center line of the annular liquid separation cavity 103 .

[0038] When L1 intersects the inner boundary of the annular liquid separation chamber 103, as shown in FIG. Figure 8As shown, the filter element 3 is a mesh structure as a whole, and the cross-section of the filter element can be elliptical. At this time, since L1 intersects with the inner boundary of the annular liquid separation chamber 103, the entity constituting the inner boundary of the annular liquid separation chamber 103 forms a blocking and guiding effect on the gas, so that the gas will inevitably have more contact and collision with the entity structure, further improving the efficiency of separating oil droplets and liquid refrigerant from the gas; in this case, the filter element 3 can be a mesh structure as a whole. After the gas enters the filter element 3 from the inlet 101, the flow area of ​​the gas flowing out of the filter element 3 is increased, the filtering effect is improved, and it is beneficial to improve the separation effect of impurities and oil droplets. There are two types of entities constituting the inner boundary of the annular liquid separation chamber 103. One is that the annular liquid separator is provided with an inner ring plate 105, and the inner surface of the inner ring plate 105 constitutes the inner boundary of the annular liquid separation chamber 103; the other is that when the annular liquid separator is mounted on the compressor housing 2, the inner surface of a portion of the compressor housing 2 constitutes the inner boundary of the annular liquid separation chamber 103.

[0039] Preferably, Figure 1 As shown, the annular liquid separator 1 includes an upper cover plate 107 and an outer ring plate 104; the inlet 101 is arranged on the upper cover plate 107, and the outlet 102 is arranged on the outer ring plate 104; when a blocking plate 301 is provided, the lower end of the blocking plate 301 is lower than the lowest point of the outlet 102.

[0040] Compared to placing the inlet 101 on the outer ring plate 104, placing the inlet 101 on the upper cover plate 107 helps avoid adverse effects on the pipeline when the inlet 101 is placed externally, and also reduces the radial dimension. Placing the outlet 102 on the outer ring plate 104 reduces the difficulty of externally connecting the outlet 102 to the intake pipe 601 of the compressor's intake port, thereby reducing the flow resistance of the gas within the intake pipe 601. Furthermore, the upper end of the baffle plate 301 can be connected to the upper cover plate 107, which can improve the structural strength of the filter element 3. The lower section of the baffle plate 301 is lower than the lowest point of the outlet 102, which prevents the gas from flowing out of the filter element 3 along a straight path to the outlet 102. This not only extends the gas flow path within the annular liquid separation chamber 103, but also significantly reduces the probability of oil droplets and liquid refrigerant entering the outlet 102 under the action of the airflow, thereby correspondingly improving the efficiency of oil and gas separation.

[0041] Preferably, Figure 5 As shown, the filter element 3 is a hexahedron, and the inner cavity of the hexahedron is a filter cavity; an air inlet is formed on a side plate of the hexahedron, and the air inlet is connected to the inlet 101; when a blocking plate 301 is provided, the blocking plate 301 is constituted as a side plate in the hexahedron; except for the side plate where the air inlet is located and the blocking plate 301, the remaining side plates are all mesh plates.

[0042] Along the radial cross section of the annular liquid separator 1, the filter element 3 can be an ellipse or a cuboid, and one side of the filter element 3 can form an inclined surface. Preferably, the filter element 3 is set as a hexahedron, and the whole is a rectangular body; in this way, the six side panels can be processed separately and then welded, which reduces the difficulty of processing. The blocking plate 301 can be made of stainless steel; further, the filter element 3 can be made of stainless steel as a whole. The multiple plate surfaces can be fixed together by welding. The six side panels can also be formed by bending and welding the same mesh plate; each side panel can also be a separate steel plate with a plurality of tiny holes opened on the steel plate. The size of the holes has a filtering effect on the gas and does not allow impurities to pass through. The size of the impurities here is a size that has a certain adverse effect on the compressor.

[0043] Preferably, Figure 2 and Figure 3 As shown, when the blocking plate 301 is provided, a first expansion space 401 is formed between the blocking plate 301 and the outer ring plate 104 , and the expansion direction of the first expansion space 401 is toward the circumferential direction of the outer ring plate 104 .

[0044] By forming a first expansion space 401 between the blocking plate 301 and the outer ring plate 104, and the expansion direction of the first expansion space 401 is toward the circumferential direction of the outer ring plate 104, when the gas flows in the inner cavity of the annular liquid separator 1, part of the gas is blocked by the blocking plate 301 in the filter element 3 and flows around the circumference of the annular liquid separation cavity 103 (such as Figure 2 and Figure 3 (The majority of the gas flows in the direction of the arrow in the figure.) This circumferential flow of gas around the annular liquid separator 1 extends the gas flow path and increases the probability of contact between the gas and the inner ring plate 105, thereby improving the efficiency of oil and gas separation. When the circumferential flow of gas along the annular liquid separator chamber 103 is blocked by the blocking plate 301, it helps to accelerate the gas's entry into the outlet 102, reduce the chaotic flow of gas in the annular liquid separator chamber 103, and reduce the noise and vibration caused by the airflow. That is, the setting of the first expansion space 401 can reduce the impact force when the gas collides with the baffle plate 301, and further reduce the noise and vibration generated by the gas flow; because when the gas contacts the baffle plate 301, the direction of the airflow forms an obtuse angle (or an acute angle) with the baffle plate 301, which prevents the airflow from impacting the baffle plate 301 and causing the oil and liquid refrigerant adhering to the baffle plate 301 to splash. At the same time, the oil and liquid refrigerant on the baffle plate 301 are separated from the baffle plate 301 by the airflow, which is beneficial to ensure that when the gas contacts the baffle plate 301, the separation effect of the baffle plate 301 on oil droplets and liquid refrigerant is improved.

[0045] Preferably, Figure 4As shown, when the position of the blocking plate 301 enables a radial line of the outer ring plate 104 to pass through the outlet 102 and the blocking plate 301 at the same time, a second expansion space 402 is formed between the blocking plate 301 and the outer ring plate 104, and the expansion direction of the second expansion space 402 is downward.

[0046] When the diameter of the outer ring plate 104 passes through the outlet 102 and the baffle plate 301 at the same time, a second expansion space 402 is formed between the baffle plate 301 and the outer ring plate 104, which makes the outlet 102 located in the second expansion space 402. The expansion direction of the second expansion space 402 is downward. The setting of the second expansion space 402 makes the baffle plate 301 gradually tilt from top to bottom away from the outer ring plate 104. The baffle plate 301 has a guiding effect on the flow of gas, so that the gas below the second expansion space 402 flows more quickly into the outlet 102 when it flows upward; the flow resistance, flow noise and vibration of the gas are greatly reduced.

[0047] Preferably, Figure 6 As shown, when an outer ring plate 104 is provided, on the axial projection of the annular liquid distributor 1, the line connecting the center of the inlet 101 and the center of the outer ring plate 104 is L2, the line connecting the center of the outlet 102 and the center of the outer ring plate 104 is L3, and the angle between L2 and L3 is α, then α=0°, or, 0<α≤90°, or, 90<α≤80°.

[0048] The inner surface of the outer ring plate 104 is the outer boundary of the annular liquid separation cavity.

[0049] α=0° can effectively reduce the flow path length of the gas in the annular liquid separation chamber 103, reduce the degree of gas heating by the compressor, avoid compressor suction overheating; and reduce pressure loss.

[0050] 0<α≤90°, the flow path of the refrigerant in the annular liquid separation chamber 103 is extended, which is beneficial to improving the oil-gas separation efficiency; while ensuring that the degree of gas heating is within the allowable range, the refrigerant cools the compressor in the liquid separator to avoid excessive temperature of the compressor.

[0051] 90<α≤80°, the flow path of the refrigerant in the annular liquid separation chamber 103 is further extended, the oil-gas separation effect is improved, the refrigerant is further heated by the compressor, and the compressor is further cooled; this situation depends on the use environment and operating frequency of the compressor; when the ambient temperature of the compressor is low and the operating frequency is low, the inlet 101 and the outlet 102 can be set in this way; since the external ambient temperature is low and the operating frequency of the compressor is also low, the heat generated by the compressor itself is less, and the suction temperature of the compressor can be guaranteed to be within a reasonable range, while also improving the oil-gas separation efficiency.

[0052] The present invention also provides a compressor, such as Figure 1 As shown, it includes a housing 2 and the annular liquid distributor, and the annular liquid distributor 1 is sleeved on the housing 2 .

[0053] The inlet 101 is provided with an air inlet pipe 601 for conveying gas into the annular liquid separator 1, and the outlet 102 is provided with a bend pipe 602 for discharging gas in the annular liquid separator 1. The outlet 102 of the bend pipe 602 is connected to the air intake of the compressor. The compressor can be a rotary compressor.

[0054] Preferably, Figure 1 and Figure 3 As shown, the housing 2 includes an annular side plate 203. When an outer ring plate 104 is provided, the space between the outer ring plate 104 and the annular side plate 203 forms an annular liquid separation chamber 103. The outer ring plate 104, the upper cover plate 107, and the lower base plate 106 are welded together and then integrally sleeved onto the annular side plate 203 and welded to the annular side plate 203. The outer ring plate 104, the upper cover plate 107, the lower base plate 106, and the housing 2 enclose an annular liquid separation chamber 103.

[0055] The compressor housing 2 is equivalent to the inner ring plate 105 constituting the liquid distributor, which is beneficial to reducing the radial size of the compressor. The compressor housing 2 also includes an upper cover assembly 201 and a lower cover assembly 202.

[0056] Preferably, Figure 1 As shown, the compressor includes a pump body assembly and a motor assembly 502, and the annular liquid distributor 1 includes a lower base plate 106; when the pump body assembly is located on the lower side of the motor assembly 502, the upper side surface of the lower base plate 106 is higher than the upper end surface of the pump body assembly; when the pump body assembly is located on the upper side of the motor assembly 502, the lower side surface of the lower base plate 106 is higher than the lower end surface of the stator of the motor assembly 502.

[0057] When the pump body assembly is located at the lower side of the motor assembly 502, the upper side surface of the lower base plate 106 is higher than the upper end surface of the pump body assembly; this prevents the refrigerant from cooling the lubricating oil in the oil pool below the pump body assembly, and prevents the lubricating oil in the oil pool from being too low, resulting in insufficient lubrication, and thus reducing the lubrication effect. When the pump body assembly is located on the upper side of the motor assembly 502, the lower side surface of the lower base plate 106 is higher than the lower end surface of the stator of the motor assembly 502; in this way, the refrigerant is prevented from cooling the lubricating oil in the oil pool below the motor assembly 502, and the lubricating oil temperature in the oil pool is prevented from being too low, resulting in insufficient lubrication of the lubricating oil, and thus resulting in a decrease in the lubrication effect; the click assembly includes a rotor assembly 501 and a stator assembly. When the stator assembly of the motor assembly 502 is fixed on the inner wall surface of the compressor casing 2, the stator and the casing 2 have a certain blocking effect on the conduction of heat (compared to the absence of the compressor internal gas and the external refrigerant separated by only the compressor casing 2, the present application is also separated by the stator of the motor). On the one hand, the refrigerant can cool the compressor to a certain extent, avoiding the compressor temperature from being too high, and at the same time, it can avoid the refrigerant absorbing too much heat from the inside of the compressor, causing the refrigerant temperature to be too high, thereby avoiding the compressor suction temperature from being too high.

[0058] The positional relationship among the motor assembly 502, the pump assembly and the annular liquid dispenser 1 enables the motor assembly 502 to be located within the annular liquid dispenser 1, thereby reducing the outward propagation of noise generated by the motor.

[0059] For parts that need to be welded together, the welding parts are chamfered. If the structure size allows, the chamfer size shall not be less than 0.3, that is, not less than C0.3.

[0060] If the ring shape allows, the radial and axial dimensions of the annular liquid separator 1 can be made larger, thereby further improving the pressure stabilization and oil separation effects, while also reducing pressure loss.

[0061] The present invention provides an air conditioner including the compressor. The outer unit of the air conditioner has a small overall size, is easy to install, and generates less vibration and noise, which is beneficial to user experience.

[0062] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. 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 invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. An annular liquid distributor, sleeved on the outer wall of the compressor shell (2), characterized in that: The annular liquid separator (1) comprises an annular liquid separation chamber (103), the annular liquid separation chamber (103) is provided with an inlet (101) and an outlet (102), a filter element (3) is provided in the annular liquid separation chamber (103), the filter element (3) covers the inlet (101), and the shortest flow path distance of the gas flowing from the inlet (101) to the outlet (102) is greater than the maximum straight-line distance between the inlet (101) and the outlet (102); Any straight line connecting the inlet (101) and the outlet (102) is L1. When L1 does not intersect with the inner boundary of the annular liquid separation chamber (103), the filter element (3) includes a blocking plate (301), and L1 intersects with the blocking plate (301); when L1 intersects with the inner boundary of the annular liquid separation chamber, the filter element (3) as a whole is a mesh structure.

2. The annular liquid distributor according to claim 1, characterized in that The annular liquid distributor (1) comprises an upper cover plate (107) and an outer ring plate (104); the inlet (101) is arranged on the upper cover plate (107), and the outlet (102) is arranged on the outer ring plate (104); when the blocking plate (301) is provided, the lower end of the blocking plate (301) is lower than the lowest point of the outlet (102).

3. The annular liquid distributor according to claim 1, characterized in that The filter element (3) is a hexahedron, and the inner cavity of the hexahedron is a filter cavity; an air inlet is formed on a side plate of the hexahedron, and the air inlet is connected to the inlet (101); when a blocking plate (301) is provided, the blocking plate (301) is configured as a side plate in the hexahedron, and except for the side plate where the air inlet is located and the blocking plate (301), the remaining side plates are all mesh plates.

4. The annular liquid separator according to claim 2, characterized in that When the blocking plate (301) is provided, a first expansion space (401) is formed between the blocking plate (301) and the outer ring plate (104), and the expansion direction of the first expansion space (401) is toward the circumferential direction of the outer ring plate (104).

5. The annular liquid distributor according to claim 2, characterized in that: When the blocking plate (301) is positioned such that a radial line of the outer ring plate (104) passes through the outlet (102) and the blocking plate (301) at the same time, a second expansion space (402) is formed between the blocking plate (301) and the outer ring plate (104), and the expansion direction of the second expansion space (402) is downward.

6. The annular liquid separator according to any one of claims 1 to 5, characterized in that: When an outer ring plate (104) is provided, in the projection in the axial direction of the annular liquid distributor (1), a line connecting the center of the inlet (101) and the center of the outer ring plate (104) is L2, a line connecting the center of the outlet (102) and the center of the outer ring plate (104) is L3, and an angle between L2 and L3 is α, then α=0°, or, 0<α≤90°, or, 90<α≤80°.

7. A compressor, characterized in that: It comprises a housing (2) and the annular liquid distributor according to any one of claims 1 to 6, wherein the annular liquid distributor (1) is sleeved on the housing (2).

8. The compressor according to claim 7, characterized in that The housing (2) comprises an annular side plate (203); when an outer ring plate (104) is provided, the space between the outer ring plate (104) and the annular side plate (203) serves as a liquid separation chamber (103).

9. The compressor according to claim 7, characterized in that The compressor comprises a pump body assembly and a motor assembly (502), and the annular liquid distributor (1) comprises a lower base plate (106); when the pump body assembly is located on the lower side of the motor assembly (502), the upper side surface of the lower base plate (106) is higher than the upper end surface of the pump body assembly; when the pump body assembly is located on the upper side of the motor assembly (502), the lower side surface of the lower base plate (106) is higher than the lower end surface of the stator of the motor assembly (502).

10. An air conditioner, characterized in that: A compressor comprising the compressor according to any one of claims 7 to 9.

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