Compressor assembly and air conditioner

Abstract

The invention relates to the technical field of compressor equipment, in particular to a compressor assembly and an air conditioner. The liquid separator assembly comprises a liquid separator body, and the liquid separator body is arranged between the two eccentric circles of the crankshaft in a sleeving mode and clamped between the upper air cylinder and the lower air cylinder so as to separate the upper air cylinder from the lower air cylinder. A plurality of functional areas are arranged in the liquid separator body, the multiple functional areas communicate with the air suction pipe, the upper air cylinder and the lower air cylinder correspondingly, and the multiple functional areas are used for conducting filtering and gas-liquid separation on gas-liquid two-phase mixed refrigerants. According to the compressor, the liquid separator assembly is integrated in the compressor, the gas-liquid separation function of mixed refrigerants can be achieved while the upper air cylinder and the lower air cylinder are mechanically separated, and therefore the overall axial size of the compressor is effectively shortened, and space optimization in the compressor is achieved.

Description

Technical Field

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

[0002] With the continuous advancement of refrigeration technology, the performance and structural optimization of rotary compressors, as the core power components of refrigeration systems, have been a focus of industry research. They play a crucial role in air conditioners, heat pumps, and cold chain equipment. In twin-cylinder compressors, the liquid separator is a key component that ensures gas-liquid separation of the refrigerant and stable system operation. Traditionally, the liquid separator is external to the compressor and connected to it via piping. It separates the gas and liquid phase of the mixed refrigerant, ensuring that the gas phase enters the compressor cylinder for compression.

[0003] Currently, the most common compressor liquid distributors on the market are divided into two types: external and internal. External distributors are usually installed outside the compressor housing and connected to the compressor cylinder via piping. To address the problem of external distributors taking up a lot of space, some compressors use internal distributors.

[0004] However, the design of the liquid dispenser in the prior art still has the following problems: The external liquid distributor occupies a large installation space, increases the overall volume of the compressor, limits the miniaturization design of the compressor, and the external structure is prone to noise and leakage risks.

[0005] In traditional two-cylinder compressors, a solid metal partition is usually used to separate the upper and lower cylinders. This structure has a single function and is only used to separate the high- and low-pressure chambers and balance the force on the rotor. It fails to fully utilize the internal space of the compressor, resulting in a larger axial size of the compressor.

[0006] In addition, the existing liquid separator structure has limited effect on filtering and gas-liquid separation of mixed refrigerant, especially in horizontal compressors. There is a problem of excessive oil discharge, and the amount of oil returning to the compressor is large, which can easily cause liquid hammer in the compressor and damage compressor components, and the oil return efficiency is low. Summary of the Invention

[0007] In view of this, the present application provides a compressor assembly and an air conditioner to solve the problem that the existing compressor has a large axial dimension and poor internal space occupancy.

[0008] A first aspect of an embodiment of the present application provides a compressor assembly, comprising a compressor body and a liquid distributor assembly, wherein the liquid distributor assembly is integrated into the compressor body; the compressor body comprises a pump assembly and an intake pipe, wherein the intake pipe is used to transport a mixed refrigerant; the pump assembly comprises an upper cylinder, a crankshaft, and a lower cylinder; The liquid separator assembly includes: a liquid separator body, which is sleeved between the two eccentric circles of the crankshaft and clamped between the upper cylinder and the lower cylinder to isolate the upper cylinder from the lower cylinder; a plurality of functional areas are arranged in the liquid separator body, and the plurality of functional areas are respectively connected to the intake pipe, the upper cylinder and the lower cylinder, wherein the plurality of functional areas are used to filter and separate the gas-liquid two-phase mixed refrigerant.

[0009] In some embodiments, the plurality of functional areas sequentially include a liquid separation functional area, a flow diversion functional area, and a liquid collection functional area; The inlet end of the liquid separation functional area is connected to the air intake pipe, and the outlet end of the liquid separation functional area is connected to the flow diversion functional area through a filter assembly; The flow guide functional area includes a first outlet and a second outlet, the first outlet is connected to the upper cylinder, and the second outlet is connected to the lower cylinder; The mixed refrigerant enters the diversion functional area after being filtered by the filter assembly, wherein the separated gaseous refrigerant enters the upper cylinder and the lower cylinder through the first outlet and the second outlet respectively, and the separated liquid refrigerant is collected in the liquid collecting functional area.

[0010] In some embodiments, the liquid separation functional area, the diversion functional area and the liquid collection functional area are arranged in sequence along the up and down directions, wherein the liquid separation functional area is arranged at the top of the liquid separator assembly as a primary separation unit, and the top is provided with an air suction hole directly connected to the air suction pipe.

[0011] In some embodiments, Along the flow direction of the mixed refrigerant, the filter assembly is formed into an upward arch structure.

[0012] In some embodiments, the filter assembly comprises a multi-layer filter structure; Along the flow direction of the mixed refrigerant, the multi-layer filter structure comprises at least a first filter layer, a second filter layer and a third filter layer abutting against each other in sequence; A gradient pore structure is used between the first filter layer, the second filter layer and the third filter layer; Wherein, the first filter layer is a stainless steel mesh of 80-120 mesh; The second filter layer is a nano-ceramic porous layer; The third filter layer is an oleophilic and hydrophobic coating.

[0013] In some embodiments, a first flow guide pipe and a second flow guide pipe are provided in the flow guide functional area; The first flow guide pipe and the second flow guide pipe are symmetrically arranged on both sides of the crankshaft; The outlet ends of the first flow guiding tube and the second flow guiding tube are both flared structures. The flared structure of the first flow guiding tube forms the first outlet, and the flared structure of the second flow guiding tube forms the second outlet.

[0014] In some embodiments, the air inlet of the lower cylinder is arranged in the area between the inner circle R1 and the outer circle R2 of the lower cylinder, and the lower outlet end of the second guide pipe (140) is located in the area between the inner circle R1 and the outer circle R2 of the lower cylinder.

[0015] In some embodiments, the flow guide functional area and the liquid collection functional area are separated by a liquid baffle, and the bottom of the liquid collection functional area has an oil return hole connected to the oil pool of the compressor body; The liquid baffle is coated with a liquid-repellent coating, or a heat-conducting member is embedded in the liquid baffle; Along the flow direction of the mixed refrigerant, the liquid baffle is an upward arched structure.

[0016] In some embodiments, the center of gravity of the liquid dispenser assembly coincides with the center of gravity of the compressor body.

[0017] A second aspect of an embodiment of the present application provides an air conditioner, which includes the compressor assembly as described in the first aspect.

[0018] Compared with the prior art, the beneficial effects of this application are mainly: The compressor assembly and air conditioner of the present application. The liquid separator assembly is integrated into the interior of the compressor body, and includes: a liquid separator body, the liquid separator body is sleeved between the two eccentric circles of the crankshaft, and is clamped between the upper cylinder and the lower cylinder to separate the upper cylinder from the lower cylinder; a plurality of functional areas are provided in the liquid separator body, and the plurality of functional areas are respectively connected to the intake pipe, the upper cylinder and the lower cylinder, wherein the plurality of functional areas are used for filtering and gas-liquid separation of the gas-liquid two-phase mixed refrigerant. In the present application, the liquid separator assembly is integrated into the interior of the compressor body, and the gas-liquid separation function of the mixed refrigerant can be realized while mechanically separating the upper cylinder and the lower cylinder, thereby effectively shortening the overall axial dimension of the compressor and realizing space optimization inside the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes should still fall within the scope of the technical contents disclosed in this application without affecting the efficacy and objectives that can be achieved by this application.

[0021] Figure 1 is a structural schematic diagram of a liquid distributor assembly in a compressor assembly according to an embodiment of the present application; Figure 2 is a structural schematic diagram of another orientation of a liquid distributor assembly in a compressor assembly according to an embodiment of the present application; Figure 3 This is a schematic structural diagram of a flow guide tube in a liquid distributor assembly in a compressor assembly according to an embodiment of the present application; Figure 4 yes Figure 1 A top view of the dispenser assembly in FIG. Figure 5 yes Figure 1 A bottom view of the dispenser assembly in FIG. Figure 6 This is a schematic structural diagram of the outer circle and inner circle of a cylinder in a compressor assembly according to an embodiment of the present application; Figure 7 is a schematic diagram of an exploded structure of a compressor assembly according to an embodiment of the present application; Figure 8 is a partial structural schematic diagram of a compressor assembly according to an embodiment of the present application; Figure 9 It is a structural schematic diagram of a compressor according to an embodiment of the present application.

[0022] Reference numerals: 10. Compressor body; 11. Intake pipe; 12. Upper cylinder; 13. Crankshaft; 14. Lower cylinder; 15. Upper flange; 16. Lower flange; 17. Assembly screws; 100. Dispenser assembly; 110, liquid dispenser body; 111, liquid dispensing functional area; 1111, air intake hole; 112, flow diversion functional area; 113, liquid collection functional area; 1131, oil return hole; 114, screw hole; 120. Filter component; 130. First flow guide pipe; 140, second flow guide pipe; 150. Liquid baffle. DETAILED DESCRIPTION

[0023] The following specific embodiments illustrate the implementation of this application. Those familiar with the art can easily understand the other advantages and functions of this application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0025] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0026] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, but should not be understood as limiting the present application.

[0028] Example 1 like Figures 1 to 9 As shown, an exemplary embodiment of the present application provides a compressor assembly, which can be used in a compressor, for example, in a rotary compressor.

[0029] The compressor assembly includes a pump body assembly and an intake pipe 11, which is used to transport the mixed refrigerant. The pump body assembly includes an upper cylinder 12, a crankshaft 13, and a lower cylinder 14, which are connected by the crankshaft 13. The upper cylinder 12 and the lower cylinder 14 are mated together via an upper flange 15 and a common lower flange 16. Combination screws 17 connect the upper and lower flanges, the upper and lower cylinders, and the crankshaft 13. It should be noted that screw holes for the combination screws 17 are provided in both the upper cylinder 12 and the lower cylinder 14.

[0030] In a specific example, three combination screws 17 are provided in each pump body assembly, thereby ensuring that no matter how the entire pump body assembly is arranged or placed, a good connection effect can be formed between the components, and effective sealing between the components can be ensured.

[0031] The liquid separator assembly 100 includes a liquid separator body 110, which is sleeved between the two eccentric circles of the crankshaft 13 and clamped between the upper cylinder 12 and the lower cylinder 14 to isolate the upper cylinder 12 from the lower cylinder 14. A plurality of functional areas are provided in the liquid separator body 110, and the plurality of functional areas are respectively connected to the intake pipe 11, the upper cylinder 12 and the lower cylinder 14, wherein the plurality of functional areas are used to filter and separate the gas-liquid mixed refrigerant. It should be noted that the mixed refrigerant here refers to the same refrigerant, that is, the refrigerant after the gas phase refrigerant and the liquid phase refrigerant are mixed, and does not refer to two different refrigerants.

[0032] In this example, the liquid separator assembly 100 is integrated inside the compressor body 10, which can achieve the gas-liquid separation function of the mixed refrigerant while mechanically separating the upper cylinder 12 and the lower cylinder 14, thereby effectively shortening the overall axial size of the compressor and realizing space optimization inside the compressor.

[0033] It should be noted that, in one example, the upper cylinder 12 and the lower cylinder 14 are respectively arranged on both sides of the liquid separator body 110, and the crankshaft 13 passes through the upper cylinder 12, the lower cylinder 14 and the liquid separator body 110, and the crankshaft 13 is used to drive the compression process. The upper cylinder 12 and the lower cylinder 14 are respectively provided with an air inlet, and the air inlet matches the position of the outlet end of the guide tube in the crankshaft 13 to receive the separated gas-phase refrigerant. The eccentric circle position of the crankshaft 13 corresponds to the installation position of the crankshaft 13 to ensure that the center of gravity of the two is consistent, thereby forming an integrated design of the dual-cylinder structure and the liquid separator body 110 to reduce the vibration amplitude.

[0034] like Figures 1 to 9 As shown, in some embodiments, the plurality of functional areas sequentially include a liquid separation functional area 111 , a flow diversion functional area 112 and a liquid collection functional area 113 .

[0035] The liquid dispenser body 110 is provided with three screw holes 114 for the assembly screws 17 to pass through. One of the screw holes 114 is provided in the liquid separation functional area 111 , and the other two screw holes 114 are symmetrically provided in the flow diversion functional area 112 .

[0036] Preferably, the liquid separation functional area 111 is provided as a primary separation unit at the top of the liquid separator body 110, and is provided with an air intake hole 1111 that is directly connected to the air intake pipe 11. Specifically, the air intake hole 1111 of the liquid separation functional area 111 is connected to the air intake pipe 11, and the outlet end of the liquid separation functional area 111 is connected to the flow diversion functional area 112 through the filter assembly 120.

[0037] The flow diversion area 112 includes a first outlet and a second outlet. The first outlet communicates with the upper cylinder 12, and the second outlet communicates with the lower cylinder 14. After being filtered by the filter assembly 120, the mixed refrigerant enters the flow diversion area 112. The separated gaseous refrigerant enters the upper cylinder 12 and the lower cylinder 14 through the first and second outlets, respectively. The separated liquid refrigerant is collected in the liquid collection area 113.

[0038] In one example, the liquid separation functional area 111 , the flow diversion functional area 112 and the liquid collection functional area 113 form a liquid separation cavity, a flow diversion cavity and a liquid collection cavity respectively.

[0039] The liquid separation chamber is located at the top of the liquid separator body 110 and is used to receive the mixed refrigerant and perform primary gas-liquid separation. The two guide pipes in the guide chamber are connected to the upper cylinder 12 and the lower cylinder 14 respectively, and are used to guide the separated gas-phase refrigerant to the upper cylinder 12 and the lower cylinder 14. The liquid collection chamber is located at the bottom of the liquid separator body 110 and is used to collect the separated liquid refrigerant and refrigeration oil, achieving automatic stratification through density difference. The filter assembly 120 is set in the liquid separation chamber to intercept impurities and control the refrigerant flow pressure. The guide pipe adopts a dual-channel layout to achieve balanced diversion. The liquid collection chamber is connected to the compressor oil sump through the oil return system.

[0040] The liquid separator body 110 is constructed as a hollow composite structure and is disposed between the upper cylinder 12 and the lower cylinder 14, thereby mechanically isolating the upper and lower cylinders 12, 14. Furthermore, a gas-liquid separation channel is integrated within the hollow composite structure to separate the mixed refrigerant into gaseous and liquid phases. The gaseous phase refrigerant is connected to the upper and lower cylinders 12, 14, respectively, via two guide tubes, ensuring uniform distribution of the gaseous phase refrigerant. Some functional components of the liquid separator body 110 are manufactured using an integrated molding structure, thereby optimizing the axial dimensions of the compressor. The gas-liquid separation channel (i.e., the guide tubes connected to the upper and lower cylinders 12, 14, respectively) cooperates with the oil return system to effectively reduce the risk of liquid hammer.

[0041] like Figures 1 to 9As shown, in some embodiments, the liquid separation functional area 111, the flow diversion functional area 112 and the liquid collection functional area 113 are arranged in sequence along the vertical direction. Based on this, this arrangement can fully utilize the effect of gravity, making the gas-liquid separation effect more significant.

[0042] Specifically, the liquid separation functional area 111 is located at the top, facilitating the reception of the mixed refrigerant from the suction pipe 11. The flow diversion functional area 112 is located in the middle, facilitating the distribution of the gaseous refrigerant to the upper cylinder 12 and the lower cylinder 14. The liquid collection functional area 113 is located at the bottom, facilitating the natural collection of the liquid refrigerant under the action of gravity.

[0043] In this example, the interior of the liquid separator body 110, which functions similarly to a partition, is divided into three main areas: the liquid separation chamber receives the mixed refrigerant and initially separates the gas and liquid components. The flow pipe within the flow chamber directs the gas flow toward the upper cylinder 12 and lower cylinder 14 (i.e., the compression unit in the compressor). The liquid collection chamber collects settled liquid. This division fully utilizes the space within the liquid separator body 110, allowing it to maintain its original mechanical isolation while adding a gas-liquid separation function, thereby reducing the space occupied by additional components.

[0044] like Figures 1 to 9 As shown, in some embodiments, the second filter layer and the third filter layer in the filter assembly 120 can be integrally formed with the dispenser body 110. Based on this structural design, the manufacturing process of the dispenser assembly is effectively simplified, the overall structural strength of the dispenser assembly is improved, and the risk of leakage at any connection between the two is reduced.

[0045] Along the flow direction of the mixed refrigerant, the filter assembly 120 is formed into an upward arched structure. The arched end of the upper arched structure is arranged from the flow diversion functional area 112 toward the liquid separation functional area 111. This upper arched structure design effectively increases the filtration area, while also making the mixed refrigerant flow smoother, reducing flow resistance, and improving the filtration efficiency of the mixed refrigerant.

[0046] like Figures 1 to 9 As shown, in some embodiments, the filter assembly 120 includes a multi-layer filter structure. Along the flow direction of the mixed refrigerant, the multi-layer filter structure includes at least a first filter layer (not shown), a second filter layer (not shown), and a third filter layer (not shown) that are sequentially abutted.

[0047] A gradient pore structure is used between the first filter layer, the second filter layer, and the third filter layer. The gradient pore structure design allows the filter assembly 120 to have a progressively finer precision from coarse to fine, ensuring the filtration effect while avoiding the clogging problem that may occur with single-layer filtration.

[0048] In some embodiments, the gradient pore structure can be formed in the following manner: Method 1: A uniform pore structure is provided between the first, second, and third filter layers. This means the pores in the first filter layer are evenly arranged and of uniform size, but are arranged from coarse to fine along the flow direction of the mixed refrigerant, i.e., along the depth direction of the pores. Method 2: A random pore structure is provided between the first, second, and third filter layers. This means the pores are irregularly sized or randomly arranged, but the pores are largest in the first filter layer. Method 3: A gradient pore structure is provided between the first, second, and third filter layers. This means the pores vary linearly in size and arrangement with increasing depth. Method 4: A layered pore structure is provided between the first, second, and third filter layers. This means the pores are composed of multiple layers of material, with different layers containing different materials, resulting in different pore structures. Method 5: A directional pore structure is provided between the first, second, and third filter layers. This means the pore structure has a certain directionality and symmetry.

[0049] In this example, the air intake hole 1111 of the liquid separation functional area 111 is arranged at the top of the liquid separator body 110 and is connected to the air intake pipe 11, and is used to receive the mixed refrigerant into the liquid separation functional area 111. The filter component 120 is arranged at the bottom of the liquid separation functional area 111. The filter component 120 adopts a multi-layer composite structure to filter impurities in layers and promote oil droplet coagulation. For example, the filter component 120 realizes the interception of particles of different sizes through a gradient pore design. The position of the air intake pipe 11 corresponds to the top of the liquid separation functional area 111 to ensure that the mixed refrigerant smoothly enters the liquid separation functional area 111. The filter component 120 cooperates with the guide pipe of the guide functional area 112 to guide the separated gas phase refrigerant into the upper cylinder 12 and the lower cylinder 14, thereby greatly improving the gas-liquid separation efficiency of the mixed refrigerant.

[0050] like Figures 1 to 9 As shown, in some embodiments, the first filter layer is an 80-120 mesh stainless steel mesh, which is mainly used to intercept larger particles of impurities in the mixed refrigerant. The stainless steel mesh has excellent mechanical strength and corrosion resistance, and can operate stably and long-term in the harsh working environment of the compressor.

[0051] The second filter layer is a nano-ceramic porous layer, which has a more refined filtration capability and can intercept tiny particles. The nano-ceramic porous layer has a uniform pore size and dense distribution, and has high filtration efficiency, capable of filtering micron-level particles.

[0052] The third filter layer is an oleophilic and hydrophobic coating that can effectively separate the oil and water in the mixed refrigerant, while promoting the coagulation of oil droplets and controlling the flow pressure of the mixed refrigerant, thereby achieving high capture efficiency of impurities in the mixed refrigerant and further improving the gas-liquid separation effect.

[0053] In this example, filter assembly 120 can utilize a combination of screens with different pore sizes. The larger pore size screens first intercept larger droplets, followed by the smaller pore size screens to further separate fine droplets, ensuring that the mixed refrigerant is as pure as possible through the guide tubes and directed into the upper and lower cylinders 12, 14. This layered filtration design effectively prevents liquid refrigerant from entering the upper and lower cylinders 12, 14 (i.e., the compression unit), reducing the risk of liquid hammer. Furthermore, the streamlined design of the guide tubes within the guide functional area 112 reduces gas flow resistance and improves compression efficiency.

[0054] The gradient pore design of the multi-layer composite filter optimizes the flow characteristics of the third filtered refrigerant flow by gradually decreasing pore size from the surface to the bottom layer. In practice, the surface layer has larger pores, suitable for intercepting large particles, the middle layer has moderate pores, capturing small particles, and the bottom layer has the smallest pores, promoting droplet agglomeration. This structure controls the pressure loss of the refrigerant flow through the filter element and improves the efficiency of impurity removal.

[0055] In a vehicle air conditioning compressor, the gradient pore design of the filter assembly 120 within the liquid distributor body 110 ensures the purity of the gaseous refrigerant, reducing the risk of liquid refrigerant entering the upper and lower cylinders, thereby preventing liquid hammer. The resulting gaseous refrigerant flow is pure and uniform, ensuring efficient compressor operation.

[0056] It should be noted that the various links of the above design are closely connected, from the stable input of the intake pipe 11 to the step-by-step purification of the multi-layer filtration, and then to the flow optimization of the gradient pores, which together achieve the pure output of the gas-phase refrigerant, effectively improve the gas-liquid separation efficiency, reduce the mechanical wear during the operation of the compressor, and extend the life of the equipment. It is particularly suitable for compact refrigeration equipment with limited space.

[0057] like Figures 1 to 9 As shown, in some embodiments, a first flow guiding pipe 130 and a second flow guiding pipe 140 are provided in the flow guiding functional area 112 .

[0058] The first and second flow conduits 130, 140 have the same structure and are disposed on either side of the crankshaft 13. Specifically, the first and second flow conduits 130, 140 can be symmetrically disposed on either side of the crankshaft 13. This design ensures that the gaseous refrigerant is evenly distributed to the upper and lower cylinders 12, 14, balancing the workload of the compressor.

[0059] The outlet ends of the first and second flow-conducting tubes 130 and 140 are both flared. The flared structure of the first flow-conducting tube 130 forms the first outlet, and the flared structure of the second flow-conducting tube 140 forms the second outlet. The flared design reduces the velocity of the gaseous refrigerant flow, reduces flow noise, and improves the uniformity of airflow distribution.

[0060] like Figure 6 As shown, in order to further optimize the entry effect of the gaseous refrigerant into the lower cylinder 14 and enable other refrigerants to enter the lower cylinder 14 evenly and smoothly, the air inlet of the lower cylinder 14 is set in a specific area between the inner circle R1 and the outer circle R2 of the lower cylinder 14. At the same time, the position and size of the lower outlet end of the second guide tube 140 also need to match this area, that is, between R1 and R2.

[0061] It should be noted that the same design structure as above is also applied to the upper cylinder 12 to ensure the coordinated operation of the entire system.

[0062] like Figures 1 to 9 As shown, in some embodiments, the flow guiding functional area 112 and the liquid collecting functional area 113 are separated by a liquid baffle 150. The bottom of the liquid collecting functional area 113 has an oil return hole 1131 connected to the oil pool of the compressor.

[0063] The liquid baffle 150 is coated with a liquid-repellent coating, which can prevent liquid droplets from adhering to the surface of the liquid baffle 150 and promote the liquid-phase refrigerant to quickly flow to the liquid collecting functional area 113.

[0064] Alternatively, a heat conductor is embedded in the liquid baffle 150, which accelerates the vaporization of the liquid refrigerant through heat conduction, improving gas-liquid separation efficiency. Along the flow direction of the mixed refrigerant, the liquid baffle 150 has an upward arched structure. This arched structure increases the cross-sectional area of ​​the airflow channel, reduces flow resistance, and makes it easier for liquid droplets to flow along the curved surface toward the liquid collection functional area 113.

[0065] In one example, the curved liquid baffle 150 can be designed as a slightly inclined curved surface. Under the influence of gravity, the liquid slides toward the bottom along the curved surface, while the refrigerant oil, due to its density difference, tends to accumulate at the bottom and smoothly return to the oil pool through the oil return hole 1131. This design can accelerate the stratification process of the refrigerant oil and liquid refrigerant, ensure timely lubricant replenishment, reduce friction loss, and extend the service life of the equipment.

[0066] The liquid baffle 150 is arranged in the liquid collecting cavity (i.e., the liquid collecting functional area 113) inside the liquid separator body 110, and is used to promote the separation of liquid refrigerant and refrigeration oil. A liquid-repellent coating is provided on the surface of the liquid baffle 150 to improve the efficiency of oil droplet aggregation. The oil return hole 1131 is provided at the bottom of the liquid separator body 110 and is connected to the compressor oil pool, and is used to guide the separated refrigeration oil back to the oil pool. The liquid baffle 150 optimizes the separation effect through an arc design. The position of the oil return hole 1131 corresponds to the bottom of the liquid collecting cavity, ensuring smooth return of the liquid components. The oil return system improves the lubrication cycle efficiency by cooperating with the liquid separator body 110.

[0067] The liquid collecting chamber is arranged at the lower part of the liquid separator body 110, and is used to collect the separated liquid refrigerant and refrigeration oil. The heat conducting plate is embedded in the side wall of the liquid collecting chamber, and is used to accelerate the vaporization of the liquid refrigerant through the working heat of the compressor. The liquid collecting chamber is connected to the oil return hole 1131 of the oil return system to guide the separated refrigeration oil to the oil pool. The heat conducting plate optimizes the heat conduction effect through material selection. The liquid components in the liquid collecting chamber are stratified by density difference. The oil return system cooperates with the liquid separator body 110 to improve the gas-liquid separation efficiency and lubrication effect.

[0068] Among them, a thin thermal conductive material can be embedded in the side wall of the liquid separator body 110, and the heat generated by the operation of the compressor can be transferred to the inside of the liquid collecting chamber through heat conduction, accelerating the conversion of liquid refrigerant into gas, thereby reducing liquid accumulation. This method not only improves the efficiency of gas-liquid separation, but also avoids the problem of poor reflux caused by excessive liquid, and ensures the overall operational stability of the structure of the liquid separator body 110. Through the above-mentioned multi-faceted design optimization, the gas-liquid separation function of the liquid separator body 110 can be efficiently realized, providing strong support for the miniaturization and reliability of the compressor.

[0069] Specifically, the working process of the liquid separator assembly is as follows: the mixed refrigerant enters the liquid separation functional area 111 through the suction pipe 11, is filtered by the filter assembly 120, and then enters the diversion functional area 112. During the filtering process, impurities in the mixed refrigerant are intercepted, and part of the liquid refrigerant is separated.

[0070] The gaseous refrigerant enters the upper cylinder 12 and the lower cylinder 14 through the first and second flow guide pipes 130 and 140, respectively, for compression. The liquid refrigerant, under the action of gravity, passes through the liquid baffle 150 and is collected in the liquid collection area 113. The liquid refrigerant and refrigeration oil in the liquid collection area 113 return to the oil sump of the compressor through the oil return hole 1131, completing the cycle.

[0071] The liquid separator assembly of this embodiment realizes efficient filtration and gas-liquid separation of mixed refrigerant by arranging multiple functional areas in the liquid separator body 110. The liquid separator body 110 is sleeved between the two eccentric circles of the crankshaft 13 and clamped between the upper cylinder 12 and the lower cylinder 14. It not only plays the role of isolating the upper cylinder 12 and the lower cylinder 14, but also makes full use of the internal space of the compressor to make the overall structure more compact. The multi-layer filtering structure and gradient pore design improve the filtration efficiency and reduce the damage of impurities to the compressor. The symmetrically arranged guide tubes ensure that the gas-phase refrigerant can be evenly distributed to the upper cylinder 12 and the lower cylinder 14, balancing the workload of the compressor. The design of the liquid baffle 150 and the oil return hole 1131 promotes the separation and recovery of the liquid-phase refrigerant, thereby improving the working efficiency and reliability of the compressor.

[0072] like Figures 1 to 9As shown, in some embodiments, the center of gravity of the liquid distributor assembly 100 coincides with the center of gravity of the compressor body, so that during operation of the compressor, the vibration intensity of the entire compressor can be reduced, thereby ensuring that the compressor can operate stably and continuously.

[0073] Example 2 To further improve the separation efficiency of liquid refrigerant and refrigeration oil based on Example 1, a copper heat conductor can be embedded in liquid baffle 150. Copper has excellent thermal conductivity and can quickly transfer heat generated by the compressor to the surface of liquid baffle 150, accelerating the vaporization process of the liquid refrigerant. The vaporized refrigerant enters the upper cylinder 12 and lower cylinder 14 through the first and second flow guide tubes 130, 140, while the refrigeration oil remains in a liquid state and flows to the liquid collection functional area 113, returning to the compressor's oil sump through the oil return hole 1131.

[0074] The liquid baffle 150 is arranged in the liquid collecting chamber inside the liquid separator body 110, and is used to promote the separation of liquid refrigerant and refrigeration oil. A liquid-repellent coating is provided on the surface of the liquid baffle 150 to improve the efficiency of oil droplet aggregation. The oil return hole 1131 is arranged at the bottom of the liquid separator body 110 and is connected to the compressor oil pool, and is used to guide the separated refrigeration oil back to the oil pool. The liquid baffle 150 optimizes the separation effect through the arc design. The position of the oil return hole 1131 corresponds to the bottom of the liquid collecting chamber to ensure smooth return of the liquid components. The oil return system improves the lubrication cycle efficiency by cooperating with the liquid separator body 110.

[0075] Example 3 A compressor includes the liquid separator assembly of embodiment 1 or embodiment 2. By adopting the liquid separator assembly of any of the above embodiments, the compressor achieves efficient filtration and gas-liquid separation of mixed refrigerant, thereby improving the operating efficiency and reliability of the compressor and extending the service life of the compressor.

[0076] Among them, the compressor is a rotor compressor.

[0077] Example 4 An air conditioner includes the rotary compressor of embodiment 3. By adopting the rotary compressor of any of the above embodiments, the air conditioner improves cooling efficiency, reduces energy consumption, reduces failure rate, and enhances user experience.

[0078] To address the issues of spatial layout and gas-liquid separation efficiency of a rotary compressor (i.e., a two-cylinder compressor, which internally includes an upper cylinder 12 and a lower cylinder 14), a hollow composite structure partition (i.e., a separator body 110) is designed in the separator assembly 100 in the air conditioner. The separator body 110 is internally divided into a liquid separation chamber, a guide channel, and a liquid collecting chamber.

[0079] An air intake port is located at the top of the liquid separation chamber, connecting to the external air intake pipe 11. A multi-layer composite filter (filter assembly 120) is located at the bottom to filter out impurities. The flow guide pipe adopts a symmetrical dual-channel layout to evenly distribute the gaseous refrigerant to the upper and lower cylinders.

[0080] The liquid collecting chamber is provided with an arc-shaped liquid baffle 150 with a liquid-repellent coating on its surface to separate the liquid refrigerant from the refrigeration oil. The bottom of the liquid collecting chamber is provided with an oil return hole 1131 which is connected to the oil pool to ensure the refrigeration oil return.

[0081] The liquid separator body 110 is installed between the two eccentric circles of the crankshaft 13 to reduce system vibration. By monitoring operating data, when the gas-liquid separation efficiency falls below a preset threshold, heat conducting plates are embedded in the sidewalls of the liquid collection chamber. This utilizes the heat from the compressor to accelerate the vaporization of the liquid refrigerant and improve the gas-liquid separation effect.

[0082] In this example, the structure of the twin-cylinder compressor is made compact, which can effectively improve the gas-liquid separation efficiency and effectively reduce system vibration.

[0083] For the preliminary prototype structure of the liquid separator body 110, a filter assembly 120 is set in the liquid separation chamber to separate the gas and liquid components in the mixed refrigerant. At the same time, a guide pipe is arranged in the guide channel to ensure that the gas component smoothly enters the compression unit, while the liquid component settles into the liquid collecting chamber under the action of gravity. An oil return hole 1131 is designed at the bottom of the liquid collecting chamber and is connected to the compressor oil pool. At the same time, an arc-shaped liquid baffle 150 is set in the liquid collecting chamber to promote the stratification and separation of liquid refrigerant and refrigeration oil, ensuring that the refrigeration oil returns to the oil pool through the oil return hole, thereby improving lubrication efficiency. A heat conducting plate is embedded in the side wall of the liquid collecting chamber, and the heat generated by the operation of the compressor is used to accelerate the gasification process of the liquid refrigerant, further improving the gas-liquid separation efficiency, and finally forming a liquid separator body 110 structure with gas-liquid separation function.

[0084] It should be noted that the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment are all a type of liquid dispenser assembly.

[0085] The serial numbers in the embodiments of this application are for description only and do not represent the advantages or disadvantages of the embodiments. In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms. The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A compressor assembly, comprising a compressor body and a liquid distributor assembly, characterized in that: The liquid distributor assembly is integrated into the compressor body; The compressor body (10) includes a pump body assembly and an air intake pipe (11), wherein the air intake pipe (11) is used to transport a mixed refrigerant, and the pump body assembly includes an upper cylinder (12), a crankshaft (13), and a lower cylinder (14); The liquid separator assembly (100) comprises a liquid separator body (110), wherein the liquid separator body (110) is sleeved between two eccentric circles of the crankshaft (13) and is sandwiched between the upper cylinder (12) and the lower cylinder (14) to separate the upper cylinder (12) and the lower cylinder (14); A plurality of functional areas are provided in the liquid separator body (110), and the plurality of functional areas are respectively connected to the air intake pipe (11), the upper cylinder (12) and the lower cylinder (14), wherein the plurality of functional areas are used for filtering and separating the gas-liquid two-phase mixed refrigerant.

2. The compressor assembly according to claim 1, wherein The multiple functional areas sequentially include a liquid separation functional area (111), a flow diversion functional area (112), and a liquid collection functional area (113); The inlet end of the liquid separation functional area (111) is in communication with the air intake pipe (11), and the outlet end of the liquid separation functional area (111) is in communication with the flow guiding functional area (112) via a filter assembly (120); The flow guide functional area (112) comprises a first outlet and a second outlet, the first outlet being in communication with the upper cylinder (12), and the second outlet being in communication with the lower cylinder (14); The mixed refrigerant is filtered by the filter assembly (120) and then enters the diversion functional area (112), wherein the separated gas phase refrigerant enters the upper cylinder (12) and the lower cylinder (14) through the first outlet and the second outlet respectively, and the separated liquid phase refrigerant is collected in the liquid collecting functional area (113).

3. The compressor assembly according to claim 2, wherein: The liquid separation functional area (111), the flow diversion functional area (112) and the liquid collection functional area (113) are sequentially arranged in the up-down direction, wherein the liquid separation functional area (111) is arranged at the top of the liquid separator body (110) as a primary separation unit, and the top is provided with an air intake hole (1111) directly connected to the air intake pipe.

4. The compressor assembly according to claim 2, wherein: Along the flow direction of the mixed refrigerant, the filter assembly (120) is formed into an upward arched structure.

5. The compressor assembly according to claim 4, characterized in that The filter assembly (120) includes a multi-layer filter structure; Along the flow direction of the mixed refrigerant, the multi-layer filter structure comprises at least a first filter layer, a second filter layer and a third filter layer abutting against each other in sequence; A gradient pore structure is used between the first filter layer, the second filter layer and the third filter layer; Wherein, the first filter layer is a stainless steel mesh of 80-120 mesh; The second filter layer is a nano-ceramic porous layer; The third filter layer is an oleophilic and hydrophobic coating.

6. The compressor assembly according to claim 2, wherein: A first flow guide pipe (130) and a second flow guide pipe (140) are provided in the flow guide functional area (112); The first flow guide tube (130) and the second flow guide tube (140) are symmetrically arranged on both sides of the crankshaft (13), and the outlet ends of the first flow guide tube (130) and the second flow guide tube (140) are both flared structures. The flared structure of the first flow guide tube (130) forms the first outlet, and the flared structure of the second flow guide tube (140) forms the second outlet.

7. The compressor assembly according to claim 6, wherein: The air inlet of the lower cylinder is arranged in the area between the inner circle R1 and the outer circle R2 of the lower cylinder, and the lower outlet end of the second guide pipe (140) is located in the area between the inner circle R1 and the outer circle R2 of the lower cylinder.

8. The compressor assembly according to any one of claims 2 to 7, characterized in that The flow guide functional area (112) and the liquid collection functional area (113) are separated by a liquid baffle (150), and the bottom of the liquid collection functional area (113) has an oil return hole (1131) connected to the oil pool of the compressor body (10); The liquid baffle (150) is coated with a liquid-repellent coating, or a heat-conducting element is embedded in the liquid baffle (150); Along the flow direction of the mixed refrigerant, the liquid baffle (150) is an upward arched structure.

9. The compressor assembly according to claim 1, wherein: The center of gravity of the liquid distributor assembly coincides with the center of gravity of the compressor body.

10. An air conditioner, characterized in that: Comprising a compressor assembly according to any one of claims 1 to 9.

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