Compressor assembly and air conditioner

Abstract

The application relates to the technical field of compressor equipment, in particular to a compressor assembly and an air conditioner. The distributor assembly comprises a distributor body, the distributor body is sleeved between two eccentric circles of a crankshaft, and is clamped between an upper cylinder and a lower cylinder to separate the upper cylinder and the lower cylinder; a plurality of function zones are arranged in the distributor body, the plurality of function zones are communicated with a suction pipe, the upper cylinder and the lower cylinder, and the plurality of function zones are used for filtering and gas-liquid separation of mixed refrigerant of gas-liquid two-phase. In the application, the distributor assembly is integrated in the compressor, the gas-liquid separation function of the mixed refrigerant can be realized while mechanically separating the upper cylinder and the lower cylinder, so that the overall axial size of the compressor is effectively shortened, and the space optimization of the compressor is realized.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of refrigeration technology, as the core power component of the refrigeration system, the performance and structure optimization of the rotary compressor has always been the focus of industry research, and plays an important role in air conditioners, heat pumps and cold chain equipment. In a double-cylinder compressor, the liquid separator is a key component to ensure the separation of refrigerant gas and liquid and the stable operation of the system. The traditional liquid separator is usually arranged outside the compressor and connected with the compressor through a pipeline, which is used for gas-liquid separation of mixed refrigerant to ensure that the gas-phase refrigerant enters the compressor cylinder for compression.

[0003] At present, the common compressor liquid separators on the market are mainly divided into external and internal types. The external liquid separator is usually installed outside the compressor shell and connected with the compressor cylinder through a pipeline. In order to solve the problem of large space occupied by the external liquid separator, some compressors adopt an internal liquid separator design.

[0004] However, the liquid separator design in the prior art still has the following problems:

[0005] The external liquid separator 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 has a risk of leakage.

[0006] In the traditional double-cylinder compressor, the upper and lower cylinders are usually separated by a solid metal partition plate. This structure is single in function, only used for separating high and low pressure cavities and balancing the force received by the rotor, and the internal space of the compressor is not fully utilized, resulting in a large axial size of the compressor.

[0007] In addition, the existing liquid separator structure has limited filtering and gas-liquid separation effect on mixed refrigerant, especially in a horizontal compressor, there is a problem of high oil discharge amount, and a large amount of oil returns to the compressor, which can easily cause liquid knock in the compressor, damage the compressor components, and low oil return efficiency. SUMMARY

[0008] In view of this, the present application provides a compressor assembly and an air conditioner to solve the problem of large axial size and poor internal space occupation of the existing compressor.

[0009] The first aspect of the embodiment of the present application provides a compressor assembly, comprising a compressor body and a liquid separator assembly, the liquid separator assembly being integrated inside the compressor body; the compressor body comprises a pump body assembly and a suction pipe, the suction pipe being used for conveying mixed refrigerant, and the pump body assembly comprising an upper cylinder, a crankshaft and a lower cylinder;

[0010] The distributor assembly comprises a distributor body sleeved between two eccentric circles of the crankshaft and clamped between the upper cylinder and the lower cylinder to isolate the upper cylinder and the lower cylinder; a plurality of functional zones are arranged in the distributor body and communicate with the suction pipe, the upper cylinder and the lower cylinder respectively, wherein the plurality of functional zones are used for filtering and gas-liquid separation of the mixed refrigerant of gas-liquid two-phase.

[0011] In some embodiments, the plurality of functional zones sequentially comprise a distribution functional zone, a flow guide functional zone and a liquid collection functional zone;

[0012] The inlet end of the distribution functional zone communicates with the suction pipe, and the outlet end of the distribution functional zone communicates with the flow guide functional zone through a filter assembly;

[0013] The flow guide functional zone comprises a first outlet and a second outlet, the first outlet communicates with the upper cylinder, and the second outlet communicates with the lower cylinder;

[0014] The mixed refrigerant enters the flow guide functional zone after being filtered by the filter assembly, wherein the separated gas-phase refrigerant enters the upper cylinder and the lower cylinder through the first outlet and the second outlet respectively, and the separated liquid-phase refrigerant is collected in the liquid collection functional zone.

[0015] In some embodiments, the distribution functional zone, the flow guide functional zone and the liquid collection functional zone are arranged in sequence along the up-down direction, wherein the distribution functional zone is arranged as a primary separation unit at the top of the distributor assembly, and the top is provided with a suction hole directly communicating with the suction pipe.

[0016] In some embodiments,

[0017] In the flow direction of the mixed refrigerant, the filter assembly is formed as an upper arch structure.

[0018] In some embodiments, the filter assembly comprises a multi-layer filter structure;

[0019] In 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 arranged in sequence;

[0020] The first filter layer, the second filter layer and the third filter layer adopt a gradient pore structure;

[0021] The first filter layer is a 80-120 mesh stainless steel mesh;

[0022] The second filter layer is a nano ceramic porous body layer;

[0023] The third filter layer is an oleophilic and hydrophobic coating layer.

[0024] In some embodiments, the flow guide functional area is provided with a first flow guide pipe and a second flow guide pipe;

[0025] The first flow guide pipe and the second flow guide pipe are symmetrically arranged on both sides of the crankshaft;

[0026] The outlet end of the first flow guide pipe and the outlet end of the second flow guide pipe are both flared structures, the flared structure of the first flow guide pipe forms the first outlet, and the flared structure of the second flow guide pipe forms the second outlet.

[0027] In some embodiments, the intake port of the lower cylinder is arranged in the area between the inner circle R1 and the outer circle R2 of the lower cylinder, and at the same time, the lower outlet end of the second flow guide pipe (140) is located in the area between the inner circle R1 and the outer circle R2 of the lower cylinder.

[0028] In some embodiments, the flow guide functional area and the liquid collecting functional area are separated by a liquid blocking plate, and the bottom of the liquid collecting functional area is provided with an oil return hole in communication with an oil pool of the compressor body;

[0029] The liquid blocking plate is coated with a liquid-repellent coating, or the liquid blocking plate is embedded with a heat-conducting member;

[0030] The liquid blocking plate is in an upper-arched structure along the flow direction of the mixed refrigerant.

[0031] In some embodiments, the center of gravity of the distributor assembly coincides with the center of gravity of the compressor body.

[0032] The second aspect of the embodiments of the present application provides an air conditioner, which comprises the compressor assembly according to the first aspect.

[0033] Compared with the prior art, the beneficial effects of the present application mainly lie in:

[0034] The compressor assembly and the air conditioner of the present application. The distributor assembly is integrated in the compressor body and comprises: a distributor body, which is sleeved between the two eccentric circles of the crankshaft and clamped between the upper cylinder and the lower cylinder to separate the upper cylinder and the lower cylinder; the distributor body is provided with a plurality of functional areas, which are in communication with the suction pipe, the upper cylinder and the lower cylinder, respectively, wherein the plurality of functional areas are used for filtering and gas-liquid separation of the mixed refrigerant of gas-liquid two-phase. In the present application, the distributor assembly is integrated in the compressor body, which can realize the gas-liquid separation function of the mixed refrigerant while mechanically separating the upper cylinder and the lower cylinder, thereby effectively shortening the overall axial size of the compressor and optimizing the space inside the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are only examples for normal persons skilled in the art, and other drawings can be obtained by the provided drawings without any creative effort.

[0036] The structures, proportions, sizes, etc. shown in the specification are merely used to cooperate with the content disclosed in the specification, to be understood and read by persons skilled in the art, and are not used to limit the conditions that can be implemented by the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0037] Figure 1 is a structural schematic view of a distributor assembly in a compressor assembly according to an embodiment of the present application;

[0038] Figure 2 is another structural schematic view of the distributor assembly in the compressor assembly according to an embodiment of the present application;

[0039] Figure 3 is a structural schematic view of a flow guide pipe in the distributor assembly in the compressor assembly according to an embodiment of the present application;

[0040] Figure 4 is a top view of the distributor assembly in Figure 1 ;

[0041] Figure 5 is a bottom view of the distributor assembly in Figure 1 ;

[0042] Figure 6 is a structural schematic view of an outer circle and an inner circle in a cylinder in a compressor assembly according to an embodiment of the present application;

[0043] Figure 7 is an exploded structural schematic view of a compressor assembly according to an embodiment of the present application;

[0044] Figure 8 is a partial structural schematic view of a compressor assembly according to an embodiment of the present application;

[0045] Figure 9 is a structural schematic view of a compressor according to an embodiment of the present application.

[0046] Reference signs:

[0047] 10, compressor body; 11, suction pipe; 12, upper cylinder; 13, crankshaft; 14, lower cylinder; 15, upper flange; 16, lower flange; 17, combination screw;

[0048] 100, distributor assembly;

[0049] 110, distributor body; 111, suction hole; 112, flow guide functional area; 113, liquid collection functional area; 1131, oil return hole; 114, screw hole;

[0050] 120, filter assembly;

[0051] 130, first flow guide pipe;

[0052] 140, second flow guide pipe;

[0053] 150, liquid baffle. DETAILED DESCRIPTION

[0054] The specific embodiments of the present application are described below with reference to the drawings, and the other advantages and effects of the present application will be easily understood by those skilled in the art from the content disclosed in the specification. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0056] It should be understood that the term "and / or" used herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0057] It is also to be noted that the terms "comprising", "including", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or process that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such product or process. An element proceeded by "comprises a" does not, without more constraints, exclude the presence of additional identical elements in the product or process that includes the recited element.

[0058] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, which are examples of embodiments of the present application described below by reference to the drawings, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0059] Embodiment One

[0060] As shown in the drawings, an exemplary embodiment of the present application provides a compressor assembly which can be applied in a compressor, such as in a rotary compressor. Figures 1 to 9 The compressor assembly comprises a pump body assembly and a suction pipe 11 for conveying mixed refrigerant, and the pump body assembly comprises an upper cylinder 12, a crankshaft 13 and a lower cylinder 14, and the upper cylinder 12 and the lower cylinder 14 are connected by the crankshaft 13. The upper cylinder 12 and the lower cylinder 14 are matched by an upper flange 15 and a lower flange 16, and the upper and lower flanges, the upper and lower cylinders and the crankshaft 13 are connected by combination screws 17. It should be noted that the upper cylinder 12 and the lower cylinder 14 are both provided with screw holes for the combination screws 17 to pass through.

[0061] In a specific example, three combination screws 17 are provided in each pump body assembly, so as to ensure that the entire pump body assembly can form a good connection effect between the components regardless of how it is arranged or placed, and at the same time ensure the effective sealing between the components.

[0062] The distributor assembly 100 comprises a distributor 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 and the lower cylinder 14. The distributor body 110 is provided with a plurality of functional zones which are in communication with the suction pipe 11, the upper cylinder 12 and the lower cylinder 14, and the plurality of functional zones are used for filtering and gas-liquid separation of the mixed refrigerant in gas-liquid two-phase state. It should be noted that the mixed refrigerant here refers to the same kind of refrigerant, i.e. the refrigerant after mixing of gas-phase refrigerant and liquid-phase refrigerant, and not two different kinds of refrigerants.

[0063]

[0064] ​In the example, the distributor assembly 100 is integrated inside the compressor body 10, and the gas-liquid separation function of the mixed refrigerant is realized while mechanically separating the upper cylinder 12 and the lower cylinder 14, thereby effectively shortening the overall axial size of the compressor and optimizing the space inside the compressor.

[0065] 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 distributor body 110, and the crankshaft 13 penetrates the upper cylinder 12, the lower cylinder 14 and the distributor body 110, and is used to drive the compression process. The upper cylinder 12 and the lower cylinder 14 are respectively provided with an air inlet, which is matched with the outlet end position of the flow guide pipe in the crankshaft 13, and is used to receive the separated gas-phase refrigerant. The eccentric circle position of the crankshaft 13 corresponds to the mounting position of the crankshaft 13 to ensure that the centers of gravity of the two are consistent, thereby forming an integrated design of a double-cylinder structure and the distributor body 110, and reducing the vibration amplitude.

[0066] As shown in Figures 1 to 9 In some embodiments, the plurality of functional zones sequentially include a separation functional zone 111, a flow guide functional zone 112 and a liquid collection functional zone 113.

[0067] Among them, three screw holes 114 are arranged on the distributor body 110 for the combined screw 17 to pass through. One of the screw holes 114 is arranged in the separation functional zone 111, and the other two screw holes 114 are symmetrically arranged in the flow guide functional zone 112.

[0068] Preferably, the separation functional zone 111 is arranged as a primary separation unit at the top of the distributor body 110, and the top is provided with an air suction hole 1111 directly communicating with the air suction pipe 11. Specifically, the air suction hole 1111 of the separation functional zone 111 communicates with the air suction pipe 11, and the outlet end of the separation functional zone 111 communicates with the flow guide functional zone 112 through the filter assembly 120.

[0069] The flow guide functional zone 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. The mixed refrigerant enters the flow guide functional zone 112 after being filtered by the filter assembly 120, 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 collection functional zone 113.

[0070] In one example, the separation functional zone 111, the flow guide functional zone 112 and the liquid collection functional zone 113 form a separation cavity, a flow guide cavity and a liquid collection cavity respectively.

[0071] The distribution cavity is arranged at the top of the distributor body 110 and is used to receive the mixed refrigerant and perform primary gas-liquid separation. The two flow guide pipes in the flow guide cavity are respectively connected to the upper cylinder 12 and the lower cylinder 14, and are used to guide the separated gas-phase refrigerant to the upper cylinder 12 and the lower cylinder 14. The liquid collection cavity is arranged at the lower part of the distributor body 110 and is used to collect the separated liquid-phase refrigerant and refrigeration oil, and the automatic layering is realized through the density difference. The filter assembly 120 is arranged in the distribution cavity, and the filter assembly 120 is used to intercept impurities and control the refrigerant flow pressure. The flow guide pipe adopts a double-channel layout to realize balanced flow guide. The liquid collection cavity is communicated with the compressor oil pool through the oil return system.

[0072] The distributor body 110 is constructed as a hollow composite structure and is arranged between the upper cylinder 12 and the lower cylinder 14, and is used to realize mechanical isolation of the upper cylinder 12 and the lower cylinder 14. At the same time, the gas-liquid separation flow channel is integrated inside the hollow composite structure, and is used to separate the mixed refrigerant into gas-phase refrigerant and liquid-phase refrigerant. The gas-phase refrigerant is connected to the upper cylinder 12 and the lower cylinder 14 through two flow guide pipes respectively, so as to ensure uniform distribution of the gas-phase refrigerant. Part of the functional components in the distributor body 110 are prepared by using an integral molding structure, so as to optimize the axial size of the compressor. The gas-liquid separation flow channel (i.e. the flow guide pipes connected to the upper cylinder 12 and the lower cylinder 14 respectively) cooperates with the oil return system, so as to effectively reduce the risk of liquid hammer.

[0073] As shown in FIG. 1, Figures 1 to 9 In some embodiments, the distribution functional area 111, the flow guide functional area 112 and the liquid collection functional area 113 are arranged in sequence along the up-down direction. Based on this, this arrangement can make full use of the gravity effect, so that the gas-liquid separation effect is more significant.

[0074] That is, the distribution functional area 111 is located at the uppermost position, which is convenient for receiving the mixed refrigerant from the suction pipe 11. The flow guide functional area 112 is located in the middle, which is convenient for the gas-phase refrigerant to be distributed to the upper cylinder 12 and the lower cylinder 14. The liquid collection functional area 113 is located at the lowermost position, which is convenient for the liquid-phase refrigerant to be naturally collected under the action of gravity.

[0075] In this example, the interior of the distributor body 110 is divided into three main areas similar to the function of a partition: the distribution cavity is responsible for receiving the mixed refrigerant and preliminarily separating the gas-liquid components. The flow guide pipes in the flow guide cavity are used to guide the gas flow to the upper cylinder 12 and the lower cylinder 14 (i.e. the compression units in the compressor). The liquid collection cavity is used to collect the settled liquid. This division makes full use of the space of the distributor body 110, so that it adds the gas-liquid separation function while maintaining the original mechanical isolation effect, thereby reducing the occupied space of the additional components.

[0076] As shown in FIG. 1, Figures 1 to 9As shown, in some embodiments, the second and third filter layers 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 point between the two is reduced.

[0077] Along the flow direction of the mixed refrigerant, the filter assembly 120 is formed into an upwardly arched structure. The arched end of the upwardly arched structure extends from the flow guiding functional area 112 towards the liquid separating functional area 111. This upwardly arched structure design effectively increases the filtration area, while simultaneously making the flow of the mixed refrigerant smoother, reducing flow resistance, and improving the filtration efficiency of the mixed refrigerant.

[0078] 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 against each other.

[0079] The first, second, and third filter layers employ a gradient pore structure. This gradient pore structure design allows the filtration precision of the filter assembly 120 to progress from coarse to fine layer by layer, ensuring filtration effectiveness while avoiding clogging problems that may occur with single-layer filtration.

[0080] In some embodiments, the gradient pore structure can be implemented in the following ways:

[0081] Method 1: A uniform pore structure is set between the first, second, and third filter layers. This means the pores in the first filter layer are evenly arranged and of the same size, but decrease in size from coarse to fine along the direction of refrigerant flow (depth). Method 2: A random pore structure is set between the first, second, and third filter layers. This means the pore size and arrangement are irregular or random, but the first filter layer has the largest pores. Method 3: A gradient pore structure is set between the first, second, and third filter layers. This means the pore size and arrangement change linearly with increasing depth. Method 4: A layered pore structure is set between the first, second, and third filter layers. This consists of multiple layers of different materials, forming different pore structures. Method 5: An oriented pore structure is set between the first, second, and third filter layers. This means the pore structure has a certain directionality and symmetry.

[0082] In this example, the suction hole 1111 of the distribution function area 111 is arranged at the top of the distributor body 110 and communicates with the suction pipe 11, which is used to receive the mixed refrigerant into the distribution function area 111. The filter assembly 120 is arranged at the bottom of the distribution function area 111, which adopts a multi-layer composite structure for layered filtering of impurities and promoting oil droplet coalescence. For example, the filter assembly 120 realizes the interception of different particle sizes through the gradient pore design, and the position of the suction pipe 11 corresponds to the top of the distribution function area 111 to ensure that the mixed refrigerant smoothly enters the distribution function area 111. The filter assembly 120 cooperates with the flow guide pipe of the flow guide function 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.

[0083] As shown in Figures 1 to 9 In some embodiments, the first filter layer is a 80-120 mesh stainless steel mesh, which is mainly used to intercept larger particle impurities in the mixed refrigerant. The stainless steel mesh has good mechanical strength and corrosion resistance, and can work stably for a long time in the harsh working environment of the compressor.

[0084] The second filter layer is a nano ceramic porous body layer, which has finer filtering capacity and can intercept small particles. The nano ceramic porous body layer has uniform pore size and dense distribution, high filtering efficiency, and can realize micron-level particle filtration.

[0085] The third filter layer is an oleophilic and hydrophobic coating layer, which can effectively separate oil and water in the mixed refrigerant, promote oil droplet coalescence, control the flow pressure of the mixed refrigerant, realize high capture efficiency of impurities in the mixed refrigerant, and further improve the gas-liquid separation effect.

[0086] In this example, the filter assembly 120 can adopt a combination of screens with different pore sizes. The screen with larger pore size first intercepts larger droplets, and then the screen with smaller pore size further separates small droplets, ensuring that the mixed refrigerant is as pure as possible before being guided into the upper cylinder 12 and the lower cylinder 14 through the flow guide pipe. This layered filtering design can effectively prevent liquid refrigerant from entering the upper cylinder 12 and the lower cylinder 14 (i.e. the compression unit), reducing the risk of liquid knock. At the same time, the flow guide pipe in the flow guide function area 112 is designed in a streamlined manner to reduce air flow resistance and improve compression efficiency.

[0087] The gradient pore design of the multi-layer composite filter optimizes the flow characteristics of the third filtered refrigerant flow by gradually reducing the pore size from the surface layer to the bottom layer. In practical applications, the surface layer has larger pores suitable for intercepting large particles, the middle layer has moderate pores suitable for capturing small particles, and the bottom layer has the smallest pores suitable for promoting droplet coalescence. This structure controls the pressure loss of the refrigerant flow when passing through the filter, while improving the removal efficiency of impurities.

[0088] In the vehicle-mounted air conditioner compressor, the gradient aperture design of the filtering assembly 120 in the distributor body 110 ensures the purity of the gaseous refrigerant, reduces the risk of liquid refrigerant entering the upper and lower cylinders, and thus avoids the phenomenon of liquid hammer. The finally generated gaseous refrigerant flow is pure and uniform, which provides a guarantee for the efficient operation of the compressor.

[0089] It should be noted that each link of the above design is closely linked, from the stable input of the suction pipe 11 to the step-by-step purification of multi-layer filtration, and then to the flow optimization of the gradient aperture, which together realizes the pure output of the gaseous refrigerant, effectively improves the gas-liquid separation efficiency, reduces the mechanical wear during the operation of the compressor, prolongs the service life of the equipment, and is especially suitable for compact refrigeration equipment with limited space.

[0090] As shown in Figures 1 to 9 In some embodiments, the flow guide functional area 112 is provided with a first flow guide pipe 130 and a second flow guide pipe 140.

[0091] The first flow guide pipe 130 and the second flow guide pipe 140 are the same structure, and the first flow guide pipe 130 and the second flow guide pipe 140 are separately arranged on both sides of the crankshaft 13. Specifically, the first flow guide pipe 130 and the second flow guide pipe 140 can be symmetrically arranged on both sides of the crankshaft 13. Based on this, the design ensures that the gaseous refrigerant can be uniformly distributed to the upper cylinder 12 and the lower cylinder 14, and balances the working load of the compressor.

[0092] The outlet end of the first flow guide pipe 130 and the second flow guide pipe 140 is an expanded structure, the expanded structure of the first flow guide pipe 130 forms a first outlet, and the expanded structure of the second flow guide pipe 140 forms a second outlet. The expanded design reduces the speed of the gaseous refrigerant flow, reduces the flow noise, and at the same time improves the uniformity of the flow distribution.

[0093] As shown in Figure 6 In order to further optimize the entering effect of the gaseous refrigerant into the lower cylinder 14, so that other refrigerants can enter the lower cylinder 14 uniformly and smoothly, the gas inlet of the lower cylinder 14 is arranged in a specific area between the inner circle R1 and the outer circle R2 of the lower cylinder 14, and at the same time, the lower outlet end position size of the second flow guide pipe 140 also needs to match this area, that is, between R1 and R2.

[0094] It should be noted that the same design structure is also applied to the upper cylinder 12 to ensure the coordinated operation of the overall system.

[0095] As shown in Figures 1 to 9 In some embodiments, the flow guide functional area 112 and the liquid collection functional area 113 are separated by a liquid blocking plate 150. The bottom of the liquid collection functional area 113 has an oil return hole 1131 communicating with the oil pool of the compressor.

[0096] The liquid baffle 150 is coated with a liquid-repellent coating that prevents liquid droplets from adhering to the surface of the liquid baffle 150 and promotes the rapid flow of liquid refrigerant to the liquid collection functional area 113.

[0097] Alternatively, the liquid baffle 150 is embedded with a heat-conducting component that accelerates the vaporization of liquid refrigerant through heat conduction, improving the gas-liquid separation efficiency. The liquid baffle 150 is arched in the direction of the flow of the mixed refrigerant. The arched structure increases the cross-sectional area of the airflow passage, reduces the flow resistance, and makes it easier for liquid droplets to flow along the curved surface to the liquid collection functional area 113.

[0098] In one example, the arc-shaped liquid baffle 150 can be designed as a curved surface structure with a small inclination angle. Under the action of gravity, the liquid slides along the curved surface to the bottom, while the refrigeration oil, due to the difference in density, is more likely to accumulate below and smoothly return to the oil pool through the oil return hole 1131. This design can accelerate the delamination process of refrigeration oil and liquid refrigerant, ensure timely replenishment of lubricating oil, reduce friction loss, and prolong the service life of the equipment.

[0099] The liquid baffle 150 is arranged in the liquid collection cavity (i.e., the liquid collection functional area 113) inside the distributor body 110, and is used to promote the separation of liquid refrigerant and refrigeration oil. The surface of the liquid baffle 150 is provided with a liquid-repellent coating to improve the oil droplet coalescence efficiency. The oil return hole 1131 is arranged at the bottom of the distributor body 110 and is in communication with 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 arc design, and the position of the oil return hole 1131 corresponds to the bottom of the liquid collection cavity, ensuring smooth return of the liquid components. The oil return system improves the lubrication circulation efficiency by cooperating with the distributor body 110.

[0100] The liquid collection cavity is arranged at the lower part of the distributor body 110 and is used to collect the separated liquid refrigerant and refrigeration oil. The heat-conducting sheet is embedded in the side wall of the liquid collection cavity and is used to accelerate the vaporization of liquid refrigerant through the heat generated by the compressor. The liquid collection cavity is in communication with the oil return hole 1131 of the oil return system to guide the separated refrigeration oil to the oil pool. The heat-conducting sheet optimizes the heat conduction effect through material selection. The liquid components in the liquid collection cavity are separated by density difference. The oil return system improves the gas-liquid separation efficiency and lubrication effect by cooperating with the distributor body 110.

[0101] In one example, a thin heat-conducting material can be embedded in the side wall of the distributor body 110 to transfer the heat generated by the compressor to the inside of the liquid collection cavity through heat conduction, thereby accelerating the conversion of liquid refrigerant to gas and reducing liquid accumulation. This method not only improves the gas-liquid separation efficiency, but also avoids the problem of poor backflow caused by excessive liquid, ensuring the overall operational stability of the structure of the distributor body 110. Through the above optimization in multiple aspects, the gas-liquid separation function of the distributor body 110 is efficiently realized, providing strong support for the miniaturization and reliability of the compressor.

[0102] Specifically, the working process of the distributor assembly is as follows: the mixed refrigerant enters the distribution function area 111 through the suction pipe 11, and after being filtered by the filter assembly 120, enters the flow guide function area 112. During the filtering process, impurities in the mixed refrigerant are intercepted, and part of the liquid refrigerant is separated out.

[0103] The gas-phase refrigerant enters the upper cylinder 12 and the lower cylinder 14 for compression through the first flow guide pipe 130 and the second flow guide pipe 140 respectively, while the liquid-phase refrigerant passes through the liquid blocking plate 150 under the action of gravity and collects in the liquid collection function area 113. The liquid refrigerant and the refrigeration oil in the liquid collection function area 113 are returned to the oil pool of the compressor through the oil return hole 1131, completing the cycle.

[0104] The distributor assembly of the present embodiment realizes efficient filtering and gas-liquid separation of the mixed refrigerant by providing multiple function areas in the distributor body 110. The distributor body 110 is sleeved between the two eccentric circles of the crankshaft 13, and is clamped between the upper cylinder 12 and the lower cylinder 14, which not only plays a role in isolating the upper cylinder 12 and the lower cylinder 14, but also makes full use of the internal space of the compressor, making the overall structure more compact. The multi-layer filtering structure and the gradient pore design improve the filtering efficiency and reduce the damage of impurities to the compressor. The symmetrically arranged flow guide pipes ensure that the gas-phase refrigerant can be evenly distributed to the upper cylinder 12 and the lower cylinder 14, balancing the working load of the compressor. The design of the liquid blocking plate 150 and the oil return hole 1131 promotes the separation and recovery of the liquid-phase refrigerant, improving the working efficiency and reliability of the compressor.

[0105] As shown in FIG. 1, Figures 1 to 9 In some embodiments, the center of gravity of the distributor assembly 100 coincides with the center of gravity of the compressor body, so that the vibration intensity of the entire compressor can be reduced during operation, thereby ensuring that the compressor can operate stably and continuously.

[0106] Embodiment Two

[0107] On the basis of embodiment one, in order to further improve the separation efficiency of the liquid refrigerant and the refrigeration oil, a copper heat conducting piece can be embedded in the liquid blocking plate 150. Copper has excellent heat conductivity, which can quickly conduct the heat generated during the operation of the compressor to the surface of the liquid blocking plate 150, accelerating the gasification process of the liquid refrigerant. The gasified refrigerant enters the upper cylinder 12 and the lower cylinder 14 through the first flow guide pipe 130 and the second flow guide pipe 140, while the refrigeration oil remains in a liquid state and flows to the liquid collection function area 113, and is returned to the oil pool of the compressor through the oil return hole 1131.

[0108] The liquid blocking plate 150 is arranged in the liquid collecting cavity inside the distributor body 110 to promote the separation of liquid refrigerant and refrigeration oil. The surface of the liquid blocking plate 150 is provided with a liquid-repellent coating to improve the oil droplet coalescence efficiency. The oil return hole 1131 is arranged at the bottom of the distributor body 110 and is connected to the compressor oil pool to guide the separated refrigeration oil back to the oil pool. The liquid blocking plate 150 is designed in an arc shape to optimize the separation effect. The position of the oil return hole 1131 corresponds to the bottom of the liquid collecting cavity to ensure smooth backflow of the liquid components. The oil return system improves the lubrication circulation efficiency by cooperating with the distributor body 110.

[0109] Embodiment three

[0110] A compressor comprising the distributor assembly of embodiment one or embodiment two. The compressor realizes efficient filtration and gas-liquid separation of mixed refrigerant by adopting the distributor assembly of any of the above embodiments, improves the working efficiency and reliability of the compressor, and prolongs the service life of the compressor.

[0111] The compressor is a rotary compressor.

[0112] Embodiment four

[0113] An air conditioner comprising the rotary compressor of embodiment three. The air conditioner improves the refrigeration efficiency, reduces the energy consumption, reduces the failure rate, and improves the user experience by adopting the rotary compressor of any of the above embodiments.

[0114] In view of the problems of spatial layout and gas-liquid separation efficiency of a rotary compressor (i.e., a double-cylinder compressor, which includes an upper cylinder 12 and a lower cylinder 14 inside), a partition plate (i.e., a distributor body 110) with a hollow composite structure is designed in the distributor assembly 100 in the air conditioner. The inside of the distributor body 110 is divided into a distribution cavity, a flow guide channel, and a liquid collecting cavity.

[0115] The top of the distribution cavity is provided with an air suction hole connected to an external air suction pipe 11, and the bottom is arranged with multiple layers of composite filter elements (filter assembly 120) to realize impurity filtration. The flow guide pipe adopts a double-channel symmetrical layout to uniformly distribute the gas-phase refrigerant to the upper and lower cylinders.

[0116] An arc-shaped liquid blocking plate 150 is arranged in the liquid collecting cavity, and the surface is provided with a liquid-repellent coating to separate liquid refrigerant and refrigeration oil. An oil return hole 1131 is arranged at the bottom of the liquid collecting cavity and is connected to the oil pool to ensure the backflow of the refrigeration oil.

[0117] The distributor body 110 is installed between the two eccentric circles of the crankshaft 13 to reduce system vibration. By monitoring the operation data, when the gas-liquid separation efficiency is lower than the preset threshold, a heat-conducting sheet is embedded in the side wall of the liquid collecting cavity to accelerate the gasification of the liquid refrigerant using the heat generated by the compressor operation and improve the gas-liquid separation effect.

[0118] The compact structure of the double-cylinder compressor is realized in the example, which can effectively improve the gas-liquid separation efficiency and reduce the system vibration.

[0119] For the preliminary structure of the distributor body 110, a filter assembly 120 is arranged in the distribution cavity to separate the gas and liquid components in the mixed refrigerant, and a flow guide pipe is arranged in the flow guide channel to ensure that the gas component smoothly enters the compression unit, and the liquid component is settled in the liquid collection cavity under the action of gravity. An oil return hole 1131 is designed at the bottom of the liquid collection cavity and is connected with the compressor oil pool, and an arc-shaped liquid baffle 150 is arranged in the liquid collection cavity to promote the separation of the liquid refrigerant and the refrigeration oil, ensure that the refrigeration oil returns to the oil pool through the oil return hole, and improve the lubrication efficiency. Heat conduction fins are embedded in the side wall of the liquid collection cavity to accelerate the gasification process of the liquid refrigerant by using the heat generated during the operation of the compressor, further improve the gas-liquid separation efficiency, and finally form the structure of the distributor body 110 with the gas-liquid separation function.

[0120] It should be noted that the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment are all kinds of distributor assemblies.

[0121] The serial numbers in the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0122] In the above embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0123] In the several embodiments provided by the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the unit division in the above device embodiment is only a logical function division, and there can be another division manner during actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different parts can be indirect couplings or communication connections through some interfaces, units or modules, and can be electrical or other forms.

[0124] The above only describes the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, some improvements and refinements can be made, which should also be regarded as the protection scope of the present application.

Claims

1. A compressor assembly comprising a compressor body and a distributor assembly, characterized by: The distributor assembly is integrated inside the compressor body; The compressor body (10) comprises a pump body assembly and a suction pipe (11) for conveying mixed refrigerant, and the pump body assembly comprises an upper cylinder (12), a crankshaft (13) and a lower cylinder (14); The distributor assembly (100) comprises a distributor body (110), which is sleeved between two eccentric circles of the crankshaft (13) and clamped 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 zones are arranged in the distributor body (110), which are respectively communicated with the suction pipe (11), the upper cylinder (12) and the lower cylinder (14), wherein the plurality of functional zones are used for filtering and gas-liquid separation of the mixed refrigerant in gas-liquid two-phase state; The plurality of functional zones successively comprise a distribution functional zone (111), a flow guide functional zone (112) and a liquid collection functional zone (113); The inlet end of the distribution functional zone (111) is communicated with the suction pipe (11), and the outlet end of the distribution functional zone (111) is communicated with the flow guide functional zone (112) through a filter assembly (120); The flow guide functional zone (112) comprises a first outlet and a second outlet, the first outlet is communicated with the upper cylinder (12), and the second outlet is communicated with the lower cylinder (14); The mixed refrigerant enters the flow guide functional zone (112) after being filtered by the filter assembly (120), 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 collection functional zone (113).

2. The compressor assembly of claim 1, wherein, The distribution functional zone (111), the flow guide functional zone (112) and the liquid collection functional zone (113) are arranged in sequence along the up-down direction, wherein the distribution functional zone (111) is arranged as a primary separation unit at the top of the distributor body (110), and the top is provided with a suction hole (1111) directly communicated with the suction pipe.

3. The compressor assembly of claim 1, wherein, The filter assembly (120) is formed as an upper arched structure along the flow direction of the mixed refrigerant.

4. The compressor assembly of claim 3, wherein, The filter assembly (120) comprises a plurality of layers of filter structure; The plurality of layers of filter structure at least comprises a first filter layer, a second filter layer and a third filter layer which are abutted in sequence along the flow direction of the mixed refrigerant; The first filter layer, the second filter layer and the third filter layer adopt a gradient pore structure; The first filter layer is a 80-120 mesh stainless steel mesh; The second filter layer is a nano ceramic porous body layer; The third filter layer is an oleophilic and hydrophobic coating layer.

5. The compressor assembly of claim 1, wherein, The flow guide functional zone (112) is provided with a first flow guide pipe (130) and a second flow guide pipe (140). The first flow guide pipe (130) and the second flow guide pipe (140) are symmetrically arranged on both sides of the crankshaft (13), and the outlet ends of the first flow guide pipe (130) and the second flow guide pipe (140) are both flared structures, the flared structure of the first flow guide pipe (130) forms the first outlet, and the flared structure of the second flow guide pipe (140) forms the second outlet.

6. The compressor assembly of claim 5, wherein, The air inlet of the lower cylinder is arranged in the region between the inner circle R1 and the outer circle R2 of the lower cylinder, and meanwhile, the lower outlet end of the second flow guide pipe (140) is located in the region between the inner circle R1 and the outer circle R2 of the lower cylinder.

7. The compressor assembly of any one of claims 1 to 6, wherein, The flow guide functional area (112) and the liquid collecting functional area (113) are separated by a liquid blocking plate (150), and the bottom of the liquid collecting functional area (113) is provided with an oil return hole (1131) in communication with the oil pool of the compressor body (10); The liquid blocking plate (150) is coated with a liquid-repellent coating, or the liquid blocking plate (150) is embedded with a heat-conducting member; In the flow direction of the mixed refrigerant, the liquid blocking plate (150) is an upper-arched structure.

8. The compressor assembly of claim 1, wherein, The center of gravity of the distributor assembly coincides with the center of gravity of the compressor body.

9. An air conditioner characterized by comprising: A compressor assembly comprising the compressor assembly according to any one of claims 1 to 8.

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