CN114017339A

CN114017339A - Compressor and refrigeration equipment

Info

Publication number: CN114017339A
Application number: CN202111320503.3A
Authority: CN
Inventors: 张贺龙; 李华明; 翟元彬
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-02-08
Anticipated expiration: 2041-11-09
Also published as: CN114017339B

Abstract

The invention discloses a compressor and refrigeration equipment, wherein the compressor comprises a pump body assembly, a silencer and an oil content structure, and the silencer is provided with a discharge port; the oil content structure comprises an oil content shell and a filter screen, the oil content shell is connected with the silencer or the pump body assembly, the oil content shell covers the air outlet side of the discharge port and is provided with a containing cavity, the oil content shell is provided with an exhaust hole which communicates the containing cavity with the interior of the shell of the compressor, and the filter screen is connected with the oil content shell and covers the exhaust hole. The invention can ensure that the oil-gas mixture discharged from the discharge port has enough time to diffuse in the containing cavity, when the oil-gas mixture is discharged through the exhaust hole, the filter screen is stably arranged on the oil content shell and is not easy to deform and damage, the filter screen filters the refrigerant oil and only allows gaseous refrigerant to pass through, thereby realizing the effective separation of the refrigerant oil and the gaseous refrigerant, reducing the oil output and improving the reliability of the compressor.

Description

Compressor and refrigeration equipment

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor and refrigeration equipment.

Background

Among the correlation technique, when the pump body subassembly of compressor compressed the refrigerant and discharged gaseous refrigerant, the refrigeration oil of compressor can be along with the refrigerant discharge, and the oil content device of traditional compressor can't realize the effective separation to refrigerant and refrigeration oil, leads to too much refrigeration oil discharge compressor, leads to more refrigeration oil to get into refrigerating system along with the refrigerant, and in the refrigeration oil finally can reachd the heat exchanger along with the refrigerant, the refrigeration oil adsorbs can influence the heat transfer effect of heat exchanger on the copper pipe surface.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a compressor which can effectively separate the refrigeration oil in the gaseous refrigerant and improve the operation reliability of the compressor.

The invention also provides refrigeration equipment with the compressor.

According to an embodiment of the first aspect of the present invention, a compressor includes: the pump body component is provided with an exhaust port; the silencer is connected with the pump body assembly and covers the exhaust port, and is provided with an exhaust port; the oil content structure, including oil content casing and filter screen, the oil content casing with the muffler or pump body subassembly is connected, the oil content casing cover in the chamber is just formed with to hold in the side of giving vent to anger of discharge port, the oil content casing is equipped with the intercommunication the exhaust hole that holds the chamber, the filter screen with the oil content casing is connected and is covered in the exhaust hole.

The compressor provided by the embodiment of the invention has at least the following beneficial effects:

through setting up the oil content structure including oil content casing and filter screen, the muffler cover sets up in pump body subassembly's gas vent, oil content casing cover sets up in the discharge port of muffler, oil content casing forms and holds the chamber and be equipped with the exhaust hole, filter screen fixed connection covers in oil content casing and in the exhaust hole, make the filter screen can stable installation in oil content casing, be difficult to take place to warp and damage, when oil-gas mixture passes through the exhaust hole and discharges, the filter screen filters the refrigeration oil, only supply gaseous refrigerant to pass through, thereby realize that refrigeration oil and gaseous refrigerant effectively separate, improve the oil content efficiency of compressor, reduce the oil mass of spitting, improve the reliability of compressor operation, because of the consumption that compression or stirring refrigeration oil produced when having reduced pump body subassembly operation, promote the efficiency of compressor.

According to some embodiments of the invention, the inner diameter of the outlet is d, and the minimum distance between the outlet and the filter screen covering the exhaust hole along the axial direction of the outlet is L, which satisfies: l is greater than or equal to 1/3 d.

According to some embodiments of the invention, the minimum distance L between the outlet opening and the sieve covering the outlet opening satisfies: l is less than or equal to 3 d.

According to some embodiments of the invention, the minimum distance L between the outlet opening and the sieve covering the outlet opening satisfies: l is more than or equal to 5mm and less than or equal to 20 mm.

According to some embodiments of the invention, the screen is provided with at least one layer, the screen having a total thickness in the range of 0.1mm to 5 mm.

According to some embodiments of the invention, the mesh number of the screen is 50 to 150.

According to some embodiments of the invention, the screen is woven from steel wires having a diameter in the range of 0.1mm to 0.4 mm.

According to some embodiments of the invention, the oil enclosure comprises a peripheral wall and a bottom wall connected to each other, the vent hole is provided in the bottom wall, and the strainer is connected to the bottom wall.

According to some embodiments of the invention, the exhaust hole is spaced from the discharge port in a projection plane perpendicular to an axial direction of the pump body assembly.

According to some embodiments of the invention, the oil enclosure further comprises a fixing plate fixedly connected to an end of the filter screen remote from the bottom wall.

According to some embodiments of the invention, an outer periphery of the fixing plate is fixedly connected to the peripheral wall.

According to some embodiments of the invention, the strainer recess is deformed to form a strainer housing attached to the bottom wall and the peripheral wall.

According to some embodiments of the invention, the oil separating structure further comprises a convex edge connected to the outer circumferential edge of the oil separating shell, the outer circumferential edge of the filtering shell is provided with a positioning edge, and the positioning edge, the convex edge and the silencer are fixedly connected.

The refrigeration equipment according to the second aspect of the embodiment of the invention comprises the compressor described in the above embodiment.

The refrigeration equipment provided by the embodiment of the invention has at least the following beneficial effects:

adopt the compressor of the embodiment of the first aspect, the compressor is through setting up the oil content structure including oil content casing and filter screen, the muffler cover sets up in pump body subassembly's gas vent, oil content casing cover sets up in the discharge port of muffler, oil content casing forms holds the chamber and is equipped with the exhaust hole, filter screen fixed connection covers in oil content casing and in the exhaust hole, make the filter screen can stable installation in oil content casing, be difficult to take place to warp and damage, when oil-gas mixture passes through the exhaust hole and discharges, the filter screen filters the refrigeration oil, only supply gaseous refrigerant to pass through, thereby realize that refrigeration oil and gaseous refrigerant carry out effective separation, improve the oil content efficiency of compressor, reduce the oil mass of spouting, improve the reliability of compressor operation, because of the consumption that compression or stirring refrigeration oil produced when having reduced pump body subassembly operation, promote the efficiency of compressor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic structural diagram of a compressor according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the main bearing, muffler and oil containment structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a main bearing, muffler and oil separating structure of a compressor according to another embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the oil separation structure of FIG. 4;

FIG. 6 is a schematic cross-sectional view of an oil separation structure according to another embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of an oil separation structure according to another embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a main bearing, muffler and oil separating structure of a compressor in accordance with another embodiment of the present invention;

FIG. 9 is a graph showing the relationship between the mesh number of the filter net of the compressor and the oil output of the compressor according to one embodiment of the present invention.

Reference numerals:

a compressor body 100; a housing 110; an upper case 111; a lower case 112; a main housing 113; an exhaust pipe 114; a motor assembly 120; a rotor 121; a stator 122; a pump body assembly 130; a cylinder 131; a main bearing 132; the sub-bearing 133; a crankshaft 134;

a reservoir 200;

a muffler 300; an anechoic chamber 310; an exhaust port 320;

an oil separation structure 400; an oil containment 410; a housing 411; an exhaust hole 412; a peripheral wall 413; a bottom wall 414; a recess 415; a compartment 416; a convex edge 420; a screen 430; a filter housing 431; a positioning rim 432; a fixing plate 440; and a through hole 441.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a compressor according to an embodiment of the present invention is used in a refrigeration system or a heat pump system, such as an air conditioner, a refrigerator, an air-powered water heater, and the like. For example, in a refrigeration system cycle of an air conditioner, a compressor is used as a power component of refrigerant cycle, the compressor compresses low-temperature and low-pressure gaseous refrigerant to form high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant passes through a condenser to release heat, a throttling device to reduce pressure, an evaporator to absorb heat, and then the high-temperature and low-pressure gaseous refrigerant enters the compressor again to perform the next refrigerant cycle.

Referring to fig. 1, a compressor according to an embodiment of the present invention is a rotary compressor. The compressor of the embodiment of the present invention includes a compressor body 100 and an accumulator 200. The compressor body 100 includes a casing 110, and a motor assembly 120 and a pump body assembly 130 located inside the casing 110. The housing 110 includes an upper case 111, a lower case 112, and a main case 113, and the upper case 111, the lower case 112, and the main case 113 are coupled to form a closed space for accommodating the motor assembly 120 and the pump body assembly 130. It will be appreciated that the motor assembly 120 includes a rotor 121 and a stator 122, and that the stator 122 and pump body assembly 130 are secured within the main housing 113. The pump body assembly 130 includes a cylinder 131, a main bearing 132, a sub-bearing 133, and a crankshaft 134. The cylinder 131 is formed with a compression chamber (not shown), and the main bearing 132 and the sub bearing 133 are respectively connected to both ends of the cylinder 131 in the axial direction, thereby closing both ends of the compression chamber in the axial direction. The liquid reservoir 200 provides a refrigerant for the pump assembly 130, the rotor 121 is connected to the crankshaft 134, so that the crankshaft 134 is driven to rotate by the motor assembly 120, the crankshaft 134 stably rotates under the supporting action of the main bearing 132 and the auxiliary bearing 133, a piston (not shown) is sleeved outside the crankshaft 134, the piston is arranged in the cylinder 131 and eccentrically rotates relative to the center of the cylinder 131, so that the compression cavity periodically changes, the pump assembly 130 completes the processes of air suction, compression and exhaust, and the refrigerant is discharged through the exhaust pipe 114 of the upper housing 111 and enters the refrigeration system to circulate.

Referring to fig. 1 and 2, in the compressor according to an embodiment of the present invention, a refrigerant enters a compression chamber through a suction hole (not shown) of a cylinder 131, is compressed by a pump assembly 130 to reach a set pressure, and is discharged through a discharge hole (not shown) of a main bearing 132. It is understood that the exhaust port may be provided on the secondary bearing 133, or may be provided on the primary bearing 132 and the secondary bearing 133, respectively, and is not particularly limited herein.

In order to improve the noise problem in the exhaust process of the exhaust port, in the compressor according to the embodiment of the present invention, the silencer 300 is disposed on the air outlet side of the exhaust port, and the silencer 300 covers the exhaust port. The muffler 300 has a muffling chamber 310 formed therein, and can reduce noise of the gas flow at the exhaust port. The muffler 300 is further provided with a discharge port 320, and the discharge port 320 communicates with the muffling chamber 310 to discharge the gaseous refrigerant.

It is understood that the muffler 300 may be mounted to the pump body assembly 130 by welding, riveting, screwing, etc., for example, when the exhaust port is provided at the main bearing 132, the muffler 300 may be fixedly coupled to the main bearing 132 by bolts.

It should be noted that there are a plurality of friction pairs in a rotary compressor: such as crankshaft 134-primary bearing 132, crankshaft 134-secondary bearing 133, crankshaft 134-piston, piston-cylinder 131, piston-primary bearing 132, piston-secondary bearing 133, piston-slide, slide-primary bearing 132, slide-secondary bearing 133, and the like. The existence of the friction pair directly influences the friction power consumption of the compressor and also influences the reliability and energy efficiency of the compressor. An oil pool is arranged in the shell 110 of the compressor, an oil supply way is arranged in the pump body assembly 130, and an oil film is formed on the position of the friction pair by using the refrigeration oil so as to reduce the friction power consumption; and the formed oil film is beneficial to reducing gas leakage among different pressure chambers and improving the refrigerating capacity of the compressor.

Therefore, the following problems exist in the related art compressor: 1) effective separation measures are not carried out on the refrigerant oil in the shell 110 of the compressor, so that more refrigerant oil enters a refrigeration system from an exhaust pipe 114 of the shell 110 along with a refrigerant, the refrigerant oil reaches an evaporator along with the refrigerant, and the liquid refrigerant oil is adsorbed on the surface of a copper pipe of the evaporator, so that the heat exchange efficiency of the evaporator is influenced, and the refrigerating capacity is reduced; 2) the refrigerant oil discharged from the compressor along with the gaseous refrigerant finally returns to the compressor body 100 and needs to pass through the reservoir 200, but the excessive liquid refrigerant oil enters the compression cavity of the pump body assembly 130 from an oil return hole (not shown) of the reservoir 200, occupies the suction volume, so that the suction volume is reduced, the liquid refrigerant oil is not easy to compress, and the excessive refrigerant oil also increases useless power consumption; 3) the compressor has high oil output, and excessive refrigeration oil is discharged out of the compressor, so that the oil level of an oil pool is reduced, the lubricating property of friction parts such as sliding vanes is deteriorated, and the running reliability of the compressor is reduced.

Referring to fig. 2, the compressor according to the embodiment of the present invention further includes an oil separating structure 400. The oil separation structure 400 can separate the oil-gas mixture discharged from the pump assembly 130, so as to separate liquid refrigerant and gaseous refrigerant, the gaseous refrigerant can be discharged to the space inside the housing 110 through the oil separation structure 400, and the refrigerant oil is filtered and then flows back to the oil sump inside the housing 110.

Referring to fig. 2 and 3, an oil separating structure 400 according to an embodiment of the present invention includes an oil separating case 410. The oil casing 410 is fixedly coupled to the muffler 300. The oil casing 410 is provided on the discharge side of the discharge port 320 of the muffler 300. It is understood that the oil division case 410 may be stably coupled to the muffler 300 by welding, riveting, screwing, or the like. The oil shell 410 is recessed towards a direction far away from the discharge port 320 to form a cavity 411, the discharge port 320 is located in the cavity 411, namely the oil shell 410 covers the discharge port 320, and the oil-gas mixture discharged from the discharge port 320 is diffused into the cavity 411 through the gas outlet side of the discharge port 320, so that the flow rate of the oil-gas mixture can be reduced, and the separation of liquid refrigerant oil and gaseous refrigerant in the oil-gas mixture is facilitated. It is understood that, as another embodiment, the oil containment 410 is provided with a convex edge 420, the oil containment structure 400 is connected to the main bearing 132 through the convex edge 420, so as to be connected to the main bearing 132, and the convex edge 420 may be connected to the main bearing 132 through welding, riveting, screwing and the like. It is understood that the flange 420 and the oil containment body 410 may be formed by integral manufacturing, or by welding, and are not particularly limited herein.

It is understood that the oil separating case 410 is provided with a discharge hole 412, one end of the discharge hole 412 is communicated with the receiving chamber 411, and the other end of the discharge hole 412 is communicated with the inner space of the outer case 110. The exhaust hole 412 may be provided at an end of the oil enclosure 410 away from the muffler 300, or may be provided in a side wall of the oil enclosure 410. Referring to fig. 2 and 3, the oil separating structure 400 according to the embodiment of the present invention further includes a screen 430. The filter screen 430 can effectively separate the liquid refrigerant oil from the gaseous refrigerant, and when the oil-gas mixture passes through the filter screen 430, the gaseous refrigerant can pass through, and the liquid refrigerant oil is filtered. The screen 430 covers the vent 412 to filter the mixture of oil and gas passing through the vent 412. The filter screen 430 is fixedly connected to the oil separation housing 410, and it is understood that the filter screen 430 may be stably connected to the oil separation housing 410 by welding, riveting, screwing, or the like. Filter screen 430 is stably installed in oil content casing 410, be difficult to take place to warp and damage, when oil-gas mixture passes through exhaust hole 412 and discharges, filter screen 430 filters the refrigeration oil, only supply gaseous refrigerant to pass through, thereby realize that refrigeration oil and gaseous refrigerant carry out effective separation, improve the oil content efficiency of compressor, reduce the oil mass of spouting, improve the reliability of compressor operation, because of the consumption that compression or stirring refrigeration oil produced when having reduced pump body subassembly 130 operation, promote the efficiency of compressor.

It is understood that the screen 430 may be provided in one, two or more layers. When the filter screens 430 are provided with more than two layers, the two adjacent filter screens 430 may be completely overlapped or partially overlapped, that is, the structures of the two adjacent filter screens 430 may be the same or different, and are not limited specifically herein. The total thickness of the filter screen 430 ranges from 0.1mm to 5 mm. The thickness of the filter screen 430 is set in the above range, and only the gaseous refrigerant can normally pass through after the oil-gas mixture passes through the filter screen 430, so that the refrigeration oil can be separated to the maximum extent, the oil separation effect is better, and the effective separation of the refrigeration oil and the gaseous refrigerant is realized.

It is understood that the mesh number of the screen 430 is 50-150. The mesh number of the filter screen 430 is set in the above range, and only the gaseous refrigerant can normally pass through after the oil-gas mixture passes through the filter screen 430, so that the refrigeration oil can be separated to the maximum extent, the oil separation effect is better, and the effective separation of the refrigeration oil and the gaseous refrigerant is realized. Referring to fig. 9, fig. 9 is a graph illustrating a relationship between the mesh number of the filter screen 430 of the compressor and the oil output of the compressor according to an embodiment of the present invention. It can be shown from the figure that when the operating frequency of the compressor is 60Hz and 90hHz, the mesh number of the filter screen 430 is in the range of 50 meshes to 150 meshes, and the oil discharge rate of the compressor is at a low level, particularly, the oil discharge rate of the compressor is the lowest in 70 meshes to 90 meshes. The mesh size of the filter screen 430 is too small, the aperture of the filter screen 430 is too large, and the refrigeration oil and the gaseous refrigerant can both discharge the oil separation structure 400, so that the effect of separating the oil-gas mixture cannot be achieved. The mesh size of the filter screen 430 is too large, the aperture of the filter screen 430 is too small, and the refrigerant oil may adhere to the small holes of the filter screen 430 when the oil-gas mixture passes through, and is blown out of the oil separation structure 400 under the repeated impact of the gaseous refrigerant, so that the oil output of the compressor is increased; furthermore, the frozen oil adheres to the surface of the screen 430, so that the effective filtering area of the oil separating structure 400 is reduced, and the oil-gas separating effect is reduced.

It is understood that the screen 430 of the present embodiment is woven from steel wires having a diameter in the range of 0.1mm to 0.4 mm. The filter screen 430 made of the materials has higher structural strength, can ensure the oil content function, and can realize the effective separation of the refrigeration oil and the gaseous refrigerant. And adopt the steel wire of above-mentioned diameter range, it is more convenient to process, and the processing cost is lower.

Referring to fig. 4, an inner diameter d of the discharge port 320 is defined, a minimum distance L between the discharge port 320 and the screen 430 covering the discharge hole 412 in an axial direction of the discharge port 320 is defined, and the inner diameter d of the discharge port 320 and the minimum distance L between the discharge port 320 and the discharge hole 412 in the axial direction of the discharge port 320 are defined as: l is greater than or equal to 1/3 d. When the minimum distance L between the discharge port 320 and the exhaust hole 412 and the inner diameter d of the discharge port 320 satisfy the above relationship, the distance between the discharge port 320 and the exhaust hole 412 is ensured and the oil-gas mixture has enough time to diffuse in the housing 411. When the inner diameter of the discharge port 320 is increased and other factors are not changed, the flow rate of the oil-gas mixture passing through the discharge port 320 per unit time is increased, and therefore the minimum distance between the discharge port 320 and the exhaust hole 412 also needs to be increased correspondingly to meet the requirement of the diffusion of the oil-gas mixture.

It is understood that the relationship between the inner diameter d of the discharge port 320 and the minimum distance L also satisfies L.ltoreq.3 d, i.e., the minimum distance L between the discharge port 320 and the filter mesh 430 covering the discharge holes 412 in the axial direction of the discharge port 320 cannot be excessively large. Since the motor assembly 120 is connected above the pump body assembly 130, as the minimum distance L increases, there may be interference between the motor assembly 120 and the pump body assembly 130, or the installation position of the motor assembly 120 needs to be moved upward, resulting in an increase in the axial length of the crankshaft 134, thereby affecting the operation stability of the motor assembly 120. According to the embodiment of the invention, by limiting the upper limit value of the minimum distance L, on the basis of ensuring the full diffusion of the oil-gas mixture, the motor assembly 120 and the pump body assembly 130 can be reasonably installed, and the overall stability of the compressor during operation is improved.

It will be appreciated that the specific range of the minimum distance L may be: l is more than or equal to 5mm and less than or equal to 20mm, the range can meet the oil-gas separation requirement of the compressor, the oil content effect is good, and the effective separation of the refrigeration oil and the gaseous refrigerant is realized. It should be noted that, when the displacement of the compressor is small, the minimum distance L may be set to a lower limit value, and when the displacement of the compressor is large, the minimum distance L may be set to an upper limit value.

Referring to fig. 4, it can be understood that, in a projection plane perpendicular to the axial direction of crankshaft 134, vent hole 412 and exhaust port 320 are spaced, so that the flow path of the oil-gas mixture in cavity 411 can be increased, the oil-gas mixture is prevented from directly passing through cavity 411, the effective filtering area of filter screen 430 is increased, and the oil separation efficiency is improved.

Referring to fig. 4 and 5, it can be understood that the oil enclosure 410 includes a peripheral wall 413 and a bottom wall 414. The peripheral wall 413 and the bottom wall 414 may be integrally press-formed by a sheet metal member, thereby improving the overall strength of the oil content structure 400. The vent 412 is formed in the bottom wall 414, and the vent 412 may be formed by punching. The screen 430 is fixedly attached to the bottom wall 414. the screen 430 may be a flat screen 430 having the same size as the bottom wall 414, or a flat screen 430 having a slightly smaller size than the bottom wall 414, so long as it covers the bottom wall 414. The screen 430 is secured to the bottom wall 414 by welding, snapping, riveting, or the like.

Referring to fig. 2 and 6, it can be understood that the oil separating structure 400 further includes a fixing plate 440. Fixing plate 440 and filter screen 430 fixed connection, filter screen 430 are fixed in between fixing plate 440 and diapire 414, and fixing plate 440 and diapire 414 support filter screen 430 respectively along axial both ends for filter screen 430's structure is more stable, can keep planar filter screen 430's shape, avoids planar filter screen 430 to be strikeed by the atmospheric pressure of oil-gas mixture and takes place to warp the damage, leads to the oil-gas separation performance inefficacy.

Referring to fig. 6 and 7, it will be appreciated that the fixing plate 440 may be installed below the filter screen 430. As another embodiment, referring to fig. 2 and 3, the fixing plate 440 may also be installed outside the cavity 411, and the fixing plate 440 is installed above the filter screen 430.

Referring to fig. 6, it can be understood that the fixing plate 440 has a ring shape, and the fixing plate 440 is fixedly connected to one end of the exhaust hole 412 near the crankshaft 134 in the circumferential direction, thereby achieving the shaping of the filter screen 430. Referring to fig. 7, in order to further improve the stability of the filter screen 430, the fixing plate 440 is disposed parallel to the bottom wall 414, and a through hole 441 is disposed at a position corresponding to the exhaust hole 412, so that the exhaust function of the exhaust hole 412 is ensured, and the fixing plate 440 can better support the filter screen 430. The outer periphery of the fixing plate 440 is fixedly connected to the peripheral wall 413, so that the fixing plate 440 and the oil enclosure 410 are more reliably connected. It will be appreciated that the attachment plate 440 may be secured to the perimeter wall 413 by welding, and the filter mesh 430 may be secured to the bottom wall 414, the filter mesh 430 may be secured to the attachment plate 440 by welding, riveting, or snapping.

Referring to fig. 8, it can be understood that, as another embodiment, the filter screen 430 is concavely deformed to form the filter housing 431, the filter housing 431 is attached to the bottom wall 414 and the peripheral wall 413 of the oil separation housing 410, and the filter housing 431 is fixedly connected to the bottom wall 414, the peripheral wall 413 or the protruding edge 420 of the oil separation structure 400, so that the filter housing 431 is stably connected, and the filter housing 431 can be fixed to the air vent 412, thereby preventing the filter housing 431 from being deformed and damaged by air pressure impact of oil-gas mixture, which results in failure of oil-gas separation performance.

Referring to fig. 8, in the compressor according to the embodiment of the present invention, an oil separating structure 400 includes an oil separating case 410 and a flange 420. The oil casing 410 is recessed in a direction away from the drain port 320, thereby forming a receiving chamber 411. For example, when the oil separating structure 400 is a sheet metal part, the oil separating housing 410 may be formed by a stamping process. The convex edge 420 is connected to an outer circumferential edge of the oil division case 410, and the convex edge 420 may be connected to an end of the oil division case 410 toward the muffler 300, thereby achieving a stable connection with the muffler 300. It is understood that the flange 420 and the oil containment body 410 may be formed by integral manufacturing, or by welding, and are not particularly limited herein.

Referring to fig. 8, it can be understood that the outer circumferential edge of the filter housing 431 is provided with a positioning edge 432, one end of the positioning edge 432 in the axial direction of the crankshaft 134 is fixedly connected with the convex edge 420, and the other end is fixedly connected with the silencer 300. The connection between the positioning edge 432 and the protruding edge 420 and the silencer 300 can be welding, riveting or other connection methods, which are not limited in detail here. The filter screen 430 is easily deformed by the pressure impact of the gaseous refrigerant, so that the positioning edge 432 is fixed between the protruding edge 420 and the silencer 300, thereby the installation structure of the filter screen 430 is more stable.

The oil separation structure 400 according to the embodiment of the present invention may be used in a vertical compressor such as a scroll compressor, or may be used in a horizontal compressor.

Referring to fig. 2 and 3, it can be understood that there are five exhaust holes 412, and the five exhaust holes 412 are all located at one end of the oil separating structure 400 far from the discharge port 320 in the axial direction of the crankshaft 134, that is, the exhaust holes 412 and the discharge port 320 are arranged at intervals in the axial direction of the crankshaft 134. It should be noted that the number of the exhaust holes 412 may be one, two, three or more, and is not limited in detail here. The screen 430 covers the vent 412 and performs oil-gas separation on the oil-gas mixture passing through the vent 412. Referring to fig. 3, it can be appreciated that the circumferential spacing of the oil containment 410 is inwardly recessed to form a plurality of recesses 415, thereby forming a petal-like structure. A plurality of compartments 416 are formed between the plurality of recesses 415 and the outer circumferential wall 413 of the oil containment 410, the plurality of compartments 416 being relatively independent and communicating with each other near the center of the oil containment structure 400. Each compartment 416 is correspondingly provided with an exhaust hole 412, and each exhaust hole 412 is provided with a filter screen 430, so that the separation of oil-gas mixture is realized. It will be appreciated that the configuration of the plurality of compartments 416 may reduce the noise generated when the air/fuel mixture is ejected from the outlet side of the outlet port 320. When the mixture of oil and gas is ejected, the sound produced is reflected within the structure of the plurality of compartments 416, making the path of the sound longer and the sounds cancel each other out, thus eliminating the wave peaks, reducing the amplitude of the noise and making the overall noise of the compressor improved.

It is understood that the shape of the oil enclosure 410 may also be a cylindrical, polygonal column, etc., and is not limited in detail herein.

The refrigeration equipment of one embodiment of the invention can be equipment for realizing refrigeration cycle through a compressor, such as an air conditioner, a refrigerator, an ice chest and the like. The refrigeration equipment of the embodiment of the invention adopts the compressor of the above embodiment, the compressor is provided with the oil content structure 400 comprising the oil content shell 410 and the filter screen 430, the silencer 300 is covered on the exhaust port of the pump body assembly 130, the oil content shell 410 is covered on the exhaust port 320 of the silencer 300, the oil content shell 410 forms the containing cavity 411 and is provided with the exhaust hole 412, the filter screen 430 is fixedly connected with the oil content shell 410 and is covered on the exhaust hole 412, so that the filter screen 430 can be stably arranged on the oil content shell 410, deformation and damage are not easy to occur, when the oil-gas mixture is exhausted through the exhaust hole 412, the filter screen 430 filters the refrigeration oil and only allows gaseous refrigerant to pass through, thereby realizing effective separation of the refrigeration oil and the gaseous refrigerant, improving the oil content efficiency of the compressor, reducing the oil output, improving the operation reliability of the compressor, and reducing the power consumption caused by compression or stirring of the refrigeration oil when the pump body assembly 130 operates, the energy efficiency of the compressor is improved.

Since the refrigeration equipment adopts all technical solutions of the compressor of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A compressor, characterized by comprising:

the pump body component is provided with an exhaust port;

the silencer is connected with the pump body assembly and covers the exhaust port, and is provided with an exhaust port;

the oil content structure, including oil content casing and filter screen, the oil content casing with the muffler or pump body subassembly is connected, the oil content casing cover in the chamber is just formed with to hold in the side of giving vent to anger of discharge port, the oil content casing is equipped with the intercommunication the exhaust hole that holds the chamber, the filter screen with the oil content casing is connected and is covered in the exhaust hole.

2. The compressor of claim 1, wherein: the internal diameter of discharge port is d, follows the axial of discharge port, the discharge port with cover in the exhaust hole the minimum distance between the filter screen is L, satisfies: l is greater than or equal to 1/3 d.

3. The compressor of claim 2, wherein: the minimum distance L between the discharge port and the filter screen covering the exhaust hole meets the following requirements: l is less than or equal to 3 d.

4. The compressor of claim 2, wherein: the minimum distance L between the discharge port and the filter screen covering the exhaust hole meets the following requirements: l is more than or equal to 5mm and less than or equal to 20 mm.

5. The compressor of claim 1, wherein: the filter screen is equipped with the one deck at least, the gross thickness scope of filter screen is 0.1mm to 5 mm.

6. The compressor of claim 1, wherein: the mesh number of the filter screen is 50-150.

7. The compressor of claim 1, wherein: the filter screen is woven for the steel wire and forms, the diameter range of steel wire is 0.1mm to 0.4 mm.

8. The compressor of claim 1, wherein: the oil content casing includes perisporium and diapire that connects, the exhaust hole is located the diapire, the filter screen with the diapire is connected.

9. The compressor of claim 1 or 8, wherein: and the exhaust hole and the discharge port are arranged at intervals in a projection plane perpendicular to the axial direction of the pump body assembly.

10. The compressor of claim 8, wherein: the oil content casing still includes the fixed plate, the fixed plate with the filter screen is kept away from the one end fixed connection of diapire.

11. The compressor of claim 10, wherein: the periphery of the fixing plate is fixedly connected with the peripheral wall.

12. The compressor of claim 8, wherein: the filter screen is sunken and deformed to form a filter shell attached to the bottom wall and the peripheral wall.

13. The compressor of claim 12, wherein: the oil content structure still includes protruding edge, protruding edge connect in the periphery of oil content casing is followed, the periphery of filtering the casing is followed and is equipped with the location and follows, protruding edge the location along with muffler fixed connection.

14. Refrigeration plant, its characterized in that: comprising a compressor according to any one of claims 1 to 13.