CN115750349A - Compressor and air conditioner - Google Patents

Abstract

The invention discloses a compressor and an air conditioner, wherein a compression mechanism for compressing a refrigerant is arranged in an inner cavity of the compressor, the compression mechanism comprises an eccentric crankshaft, a shaft hole which runs through and extends along the axial direction of the eccentric crankshaft is arranged in the eccentric crankshaft, a shaft plug assembly is arranged in the shaft hole and comprises a shaft plug and a floater, the floater is arranged at the bottom side of the shaft plug, a first exhaust hole is arranged on the floater, a second exhaust hole is arranged on the bottom wall of the shaft plug, and the first exhaust hole and the second exhaust hole are staggered; the floater moves upwards under the buoyancy action of the engine oil in the shaft hole and is attached to the bottom wall of the shaft plug to plug the first exhaust hole and the second exhaust hole, so that the engine oil in the shaft hole is effectively plugged by the shaft plug in a stable operation stage of the compressor, the oil discharge rate of the compressor is reduced, and the operation reliability of the compressor is improved; the float moves downwards under the action of self weight, and is separated from the bottom wall of the shaft plug to open the first exhaust hole and the second exhaust hole, so that the compressor can quickly exhaust air through the shaft plug at the initial operation stage.

Description

Compressor and air conditioner

Technical Field

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

Background

The air conditioner performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

The low-temperature and low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas in a high-temperature and high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the ambient environment through the condensation process.

Rolling rotor compressor is widely used in air conditioner nowadays, and the working principle of the existing rolling rotor compressor is: the motor stator generates magnetic pull force after being electrified, the motor rotor rotates under the action of the magnetic pull force of the stator and drives the eccentric crankshaft of the compression mechanism to rotate together, the eccentric crankshaft rotates to drive the piston sleeved on the eccentric part of the eccentric crankshaft to do eccentric circular motion in the cylinder, the sliding piece is installed in the sliding piece groove of the cylinder and always props against the piston under the action of the compression spring in the spring hole so as to enable the piston to do reciprocating motion in the sliding piece groove, the sliding piece and the piston divide the cylinder into a high-pressure cavity and a low-pressure cavity, and the eccentric crankshaft drives the piston to rotate for one circle, so that the air is sucked from the low-pressure cavity and exhausted from the high-pressure cavity to complete one-time exhaust, and the compressor compresses the gas.

The bottom of the shaft hole of the eccentric crankshaft is provided with an oiling blade, the top of the shaft hole is provided with a shaft plug, the wall of the eccentric crankshaft is provided with an oil discharge hole communicated with the inner shaft hole, and under the action of the oiling blade, engine oil in an oil pool is driven to flow into the shaft hole and is discharged from the oil discharge hole at the side part, so that the oil supply of a friction pair (comprising a cylinder, a bearing and the like) of the eccentric crankshaft is lubricated by a sleeve. The existing shaft plug is provided with the exhaust hole, gas in the shaft hole is exhausted through the exhaust hole at the top in the initial operation stage of the compressor, the exhaust hole is not blocked in the stable operation stage of the compressor, engine oil in the shaft hole can be exhausted from the exhaust hole in a large amount, the oil discharge rate of the compressor is increased, and the operation reliability of the compressor is reduced.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the structure improvement is carried out on the shaft plug in the shaft hole of the eccentric crankshaft, so that the quick exhaust of the shaft hole in the initial operation stage of the compressor through the shaft plug and the effective plugging of the engine oil in the shaft hole by the shaft plug in the stable operation stage are realized, the oil discharge rate of the compressor is reduced, and the operation reliability of the compressor is improved.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

in some embodiments of the present application, a compressor is provided, a compression mechanism for compressing a refrigerant is disposed in an inner cavity of the compressor, the compression mechanism includes an eccentric crankshaft, a shaft hole axially penetrating and extending along the eccentric crankshaft is disposed in the eccentric crankshaft, the compressor further includes a shaft plug assembly including a shaft plug and a float, the shaft plug is disposed in the shaft hole, the float is disposed at a bottom side of the shaft plug, a first vent hole is disposed on the float, a second vent hole is disposed on a bottom wall of the shaft plug, and the first vent hole and the second vent hole are staggered with each other;

the floater moves upwards under the buoyancy action of the engine oil in the shaft hole and is attached to the bottom wall of the shaft plug to plug the first exhaust hole and the second exhaust hole, so that the engine oil in the shaft hole is effectively plugged by the shaft plug in a stable operation stage of the compressor;

the float moves downwards under the action of self weight, and is separated from the bottom wall of the shaft plug so as to open the first exhaust hole and the second exhaust hole, so that the compressor can quickly exhaust air through the shaft plug at the shaft hole in the initial operation stage.

In some embodiments of this application, be equipped with a plurality of interval arrangements's mounting hole on the diapire of axle stopper, the top of float is equipped with connecting portion, connecting portion insert locate in the mounting hole, and can follow the mounting hole up-and-down motion realizes the float and can the movable formula installation from top to bottom in axle stopper bottom to the guiding action is played to the up-and-down motion of float to assembly between connecting portion and the mounting hole.

In some embodiments of this application, the top of connecting portion is equipped with tapered portion, tapered portion is located the diapire top of axle stopper, tapered portion's cross section is circular, tapered portion's cross section diameter is by lower supreme reducing gradually, tapered portion's bottom diameter is greater than the diameter of mounting hole. The setting of toper type portion is convenient for connecting portion and is filled in the mounting hole to receive blockking of toper type portion to be difficult for droing after the installation, the structure is reliable.

In some embodiments of the present application, the shaft hole includes a shaft hole first section and a shaft hole second section which are communicated with each other up and down;

an oil discharge hole is formed in the wall which encloses one section of the shaft hole, an oiling blade is arranged in one section of the shaft hole, and engine oil in the oil pool moves upwards along the shaft hole under the action of the oiling blade and is discharged through the oil discharge hole to lubricate oil supply of the friction pair;

the axle stopper subassembly is located the position department that leans on in the shaft hole two-stage section, the periphery wall of axle stopper with the internal perisporium of shaft hole two-stage section pastes and leans on, the external diameter of float is less than the internal diameter of shaft hole two-stage section forms the clearance of ventilating between the inner wall of float and shaft hole two-stage section, and in the exhaust stage, the gaseous side motion to the axle stopper simultaneously through this clearance of exhausting and first exhaust hole in the shaft hole finally follows the second exhaust hole and discharges, improves exhaust efficiency greatly.

In some embodiments of the present application, the bottom of the oil feeding blade is provided with a flexible sheet, and after the rotation speed is increased, the flexible sheet is deformed, so that the oil feeding passage is narrowed, and the oil feeding amount is reduced.

In some embodiments of this application, be in the inner chamber of compressor compressing mechanism's top still is equipped with the motor, eccentric bent axle with the motor is connected, the top of compressor is equipped with the blast pipe, the motor with be equipped with between the blast pipe and keep off oily subassembly, it forms the passageway of buckling to keep off oily subassembly, the warp refrigerant gas after the compression mechanism compression warp the passageway flow direction of buckling the blast pipe, it blocks to keep off oily subassembly the machine oil flow direction of motor top the blast pipe.

Through set up between blast pipe and motor and keep off oily subassembly, buckle the passageway and allow gaseous passing through, can block the upflow of liquid machine oil simultaneously, reach gas-liquid separation's effect, reduce the oily rate of spouting of compressor, guarantee the inside machine oil volume of compressor, improve the compressor reliability.

In some embodiments of the present application, the oil baffle assembly includes a first oil baffle and a second oil baffle;

the first oil blocking piece is positioned above the motor and has a certain distance with the motor, a first gap is formed between the first oil blocking piece and the inner peripheral wall of the shell of the compressor, and a first vent hole opposite to the shaft hole is formed in the first oil blocking piece;

the second oil blocking piece is arranged on the inner peripheral wall of the shell and is positioned above the first oil blocking piece, a second gap is formed between the first oil blocking piece and the second oil blocking piece, a second vent is arranged on the second oil blocking piece, and the first vent is opposite to the second vent;

the first gap and the second gap form the bending channel, and the second vent is communicated with the bending channel.

The refrigerant gas discharged from the cylinder flows and turns to many times under the effect of the first oil retaining piece and the second oil retaining piece, and the refrigerant gas turns to many times and the blocking effect of the first oil retaining piece and the second oil retaining piece under the premise of allowing gas circulation and discharging, so that the liquid engine oil is blocked, the gas-liquid separation effect is achieved, the liquid engine oil is prevented from being discharged along with the refrigerant gas, and the oil spitting rate is reduced.

In some embodiments of the present application, the first oil blocking member includes an oil blocking piece and a connecting piece, the oil blocking piece is located above the connecting piece, and the oil blocking piece is connected with the connecting piece through a plurality of connecting upright columns arranged at intervals;

the connecting sheet is arranged on the upper part of the rotor of the motor and is fixedly connected with the rotor of the motor;

the oil blocking sheet and the inner peripheral wall of the shell are provided with the first gap, the oil blocking sheet and the second oil blocking piece are provided with the second gap, and the oil blocking sheet is provided with the first air vent.

In some embodiments of this application, the second keeps off oily piece includes horizontal portion and vertical portion, horizontal portion is followed the horizontal tangent plane of inner chamber extends, be equipped with in the horizontal portion the second vent, vertical portion is followed the circumferential edge downwardly extending of horizontal portion, vertical portion with the internal perisporium fixed connection of casing, horizontal portion with have between the fender oil piece the second clearance.

The invention also provides an air conditioner which comprises the compressor.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.

Fig. 1 is a schematic configuration diagram of a compressor according to an embodiment;

fig. 2 is a sectional view of a compressor according to an embodiment;

FIG. 3 is a schematic view of an assembly of a compression mechanism, a motor, and an oil dam assembly according to an embodiment;

FIG. 4 is a schematic diagram of an eccentric crankshaft according to an embodiment;

fig. 5 is a schematic structural view of the plug assembly according to the embodiment, as viewed from the upper side;

FIG. 6 is a schematic structural view of a plug assembly according to an embodiment, as viewed from a bottom side;

FIG. 7 is an exploded view of a shaft plug assembly according to an embodiment;

FIG. 8 is a schematic structural view of an oiling blade according to an embodiment;

FIG. 9 is a schematic view of an assembly of an oil baffle assembly and an eccentric crankshaft according to an embodiment;

FIG. 10 is a schematic diagram of a first oil retainer, according to an embodiment;

FIG. 11 is a schematic structural view of a second oil retainer according to an embodiment;

fig. 12 is a schematic structural view of a compression mechanism according to the embodiment;

FIG. 13 is a schematic structural view of an upper muffler according to an embodiment;

FIG. 14 is a schematic view of a configuration of an airway tube according to an embodiment;

FIG. 15 is a schematic structural view of a housing according to an embodiment;

FIG. 16 is a schematic diagram of an arrangement structure of an oil return pipe according to an embodiment;

FIG. 17 is a schematic view of a principle of arrangement of an oil return pipe according to an embodiment;

reference numerals:

100-shell, 110-groove;

200-motor, 210-stator, 220-rotor;

300-a compression mechanism;

310-eccentric crankshaft, 311-main shaft section, 312-upper eccentric shaft section, 313-connecting shaft section, 314-lower eccentric shaft section, 315-auxiliary shaft section, 316-shaft hole, 3161-shaft hole section, 3162-shaft hole section and 317-exhaust hole;

321-upper cylinder, 322-lower cylinder;

331-upper bearing, 332-lower bearing;

340-a middle separator;

351-upper silencer, 3511-upper vent, 3512-connecting flanging part, 3513-convex hull part, 3514-extending part and 352-lower silencer;

361-upper piston, 362-lower piston;

400-exhaust pipe;

500-airway, 510-first segment of airway, 520-second segment of airway, 530-third segment of airway, and 540-fourth segment of airway;

600-oil retaining assembly, 610-first oil retaining member, 611-oil retaining sheet, 6111-first air vent, 612-connecting sheet, 6121-through hole, 613-connecting upright column, 620-second oil retaining member, 621-transverse part, 622-vertical part, 623-second air vent, 630-first gap, 640-second gap;

700-an oil return pipe;

800-shaft plug assembly, 810-shaft plug, 811-second vent hole, 812-mounting hole, 813-extending fin, 814-bottom wall of shaft plug, 820-float, 821-first vent hole, 822-connecting part, 823-conical part;

900-oiling blade, 910-flexible sheet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Air-conditioner

The air conditioner performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

The low-temperature and low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas in a high-temperature and high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the ambient environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and the expansion valve may be provided in either the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner performs a heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner performs a cooling mode.

The indoor heat exchanger and the outdoor heat exchanger are switched to be used as a condenser or an evaporator, a four-way valve is generally adopted, and specific reference is made to the arrangement of a conventional air conditioner, which is not described herein again.

The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger is rapidly evaporated to absorb heat, air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger to become cold air to be blown into a room, the evaporated and vaporized refrigerant is compressed by the compressor, is condensed into liquid in a high-pressure environment in the outdoor heat exchanger (in the outdoor unit, the condenser at the moment) to release heat, and the heat is dissipated into the atmosphere through the outdoor fan, so that the refrigeration effect is achieved by circulation.

The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at this time), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, thereby achieving the purpose of increasing the indoor temperature. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.

Compressor ]

The compressor in this embodiment is a rolling rotor compressor, and referring to fig. 1 and 2, the compressor includes a housing 100, a closed inner cavity is formed in the housing 100, a motor 200 and a compression mechanism 300 are disposed in the inner cavity, the motor 200 provides power for the compressor mechanism 300, the compression mechanism 300 is used for compressing a refrigerant, and the motor 200 is disposed above the compression mechanism 300. Only the main casing of the compressor is shown in fig. 1, and the intake pipe and the like are not shown.

The motor 200 includes a stator 210 and a rotor 220, and the stator 210 is fixedly connected with the inner wall of the casing 100 to realize the fixed installation of the motor 200 in the inner cavity of the compressor.

The compression mechanism 300 includes an eccentric crankshaft 310, a cylinder, a piston, and a bearing.

Referring to fig. 2 and 3, the eccentric crankshaft 310 includes a main shaft section fixedly connected with the rotor 220, an eccentric shaft section, and an auxiliary shaft section; a piston is arranged in a compression cavity of the cylinder and sleeved on the eccentric shaft section; the bearing is fixedly connected with the cylinder, a bearing exhaust hole is formed in the bearing, and the bearing exhaust hole is communicated with the compression cavity; be equipped with the gleitbretter groove on the cylinder, the gleitbretter inslot is equipped with the gleitbretter, and eccentric crankshaft 310 drives the piston and is circumferential motion in the compression chamber, and the gleitbretter is followed gleitbretter groove reciprocating motion, and the gleitbretter supports with the piston all the time and leans on, and high-pressure chamber and low-pressure chamber are separated into with the compression chamber to gleitbretter and piston.

The working principle of the compressor is as follows: the stator 210 of motor produces magnetic pull force after the circular telegram, the rotor 220 of motor is rotary motion under the magnetic pull force effect of stator, and drive eccentric crankshaft 310 and do rotary motion together, eccentric crankshaft 310 rotates and then drives the piston of cover on its eccentric shaft section and do eccentric circular motion in the compression intracavity of cylinder, the gleitbretter is reciprocating motion in the gleitbretter groove, the gleitbretter has divided into high pressure chamber and low pressure chamber with the compression chamber of cylinder 320 with the piston, eccentric crankshaft 310 drives the piston and rotates a week and then breathes in from the low pressure chamber and exhaust from the high pressure chamber and accomplish once to exhaust, realize the compressor to gaseous compression, the gas after the compression is discharged through the bearing exhaust hole.

The housing 100 includes a top shell, a bottom shell, and a circumferential housing disposed between the top shell and the bottom shell, the top shell, the bottom shell, and the circumferential housing enclosing an inner cavity of the compressor.

The exhaust pipe 400 is connected to the top case, and an intake pipe (not shown) is connected to the circumferential case 130, the intake pipe communicating with an intake hole of the cylinder.

Fig. 2 shows a double-cylinder rolling rotor compressor, and the compression mechanism 300 specifically includes an eccentric crankshaft 310, two cylinders (an upper cylinder 321 and a lower cylinder 322, respectively), two bearings (an upper bearing 331 and a lower bearing 332, respectively), two pistons (an upper piston 361 and a lower piston 362, respectively), and a middle partition 340.

Referring to fig. 9, the eccentric crankshaft 310 sequentially includes a main shaft section 311, an upper eccentric shaft section 312, a connecting shaft section 313, a lower eccentric shaft section 314, and an auxiliary shaft section 315 from top to bottom, an upper piston 361 capable of performing eccentric motion is disposed in a compression cavity of the upper cylinder 321, and the upper eccentric shaft section 312 is sleeved with the upper piston 361; a lower piston 362 capable of performing eccentric motion is arranged in a compression cavity of the lower cylinder 322, and the lower piston 362 is sleeved on the lower eccentric shaft section 314; the middle partition board 340 is sleeved on the connecting shaft section 313, and the middle partition board 340 is positioned between the upper cylinder 321 and the lower cylinder 322; the upper bearing 331 is sleeved on the main shaft section 311 and is connected with the upper cylinder 321; the lower bearing 332 is sleeved on the auxiliary shaft section 315 and is connected to the lower cylinder 322.

The upper eccentric shaft section 312 and the lower eccentric shaft section 314 are arranged at a relative angle of 180 degrees, the upper piston 361 and the lower piston 362 simultaneously perform eccentric rotation, compressed air in a compression cavity of the upper air cylinder 321 is discharged through an exhaust hole on the upper bearing 331, and compressed air in a compression cavity of the lower air cylinder 322 is discharged through an exhaust hole on the lower bearing 332.

The upper bearing 331 is provided with an upper silencer 351, the upper silencer 351 covers the exhaust hole of the upper bearing 331, and compressed air in the upper cylinder 321 is exhausted into a space surrounded by the upper silencer 351 and the upper bearing 331 through the exhaust hole of the upper bearing 331 and then exhausted into an inner cavity of the compressor through the exhaust hole of the upper silencer 351.

The lower bearing 332 is provided with a lower silencer 352, the lower silencer 352 covers the exhaust hole of the lower bearing 332, and the compressed air in the lower cylinder 322 is firstly exhausted to the space surrounded by the lower silencer 352 and the lower bearing 332 through the exhaust hole on the lower bearing 332.

Different from the above, the lower muffler 352 has no exhaust hole, and the walls of the upper bearing 331, the upper cylinder 321, the middle partition 340, the lower cylinder 322, and the lower bearing 332 have a plurality of through holes (not shown) penetrating up and down, so that the compressed air in the lower bearing 332 and the lower muffler 352 is exhausted upward through the through holes into the space surrounded by the upper bearing 331 and the upper muffler 351, and then is exhausted into the inner cavity of the compressor through the exhaust hole in the upper muffler 351.

The top of the casing 100 is provided with a discharge pipe 400, the discharge pipe 400 is located above the motor 200, and the refrigerant gas compressed by the compression mechanism 300 is finally discharged through the discharge pipe.

Axle plug assembly, oiling blade

Referring to fig. 4, an axial hole 316 extending through the eccentric crankshaft 310 in the axial direction thereof is provided, the axial hole 316 includes an axial hole first segment 3161 and an axial hole second segment 3162 which are vertically communicated, the axial hole first segment 3161 is located below the axial hole second segment 3162, the internal axial holes of the upper eccentric shaft segment 312, the connecting shaft segment 313, the lower eccentric shaft segment 314 and the auxiliary shaft segment 315 correspond to the axial hole first segment 3161, and the internal axial hole of the main shaft segment 311 corresponds to the axial hole second segment 3162.

The wall of the eccentric crankshaft 316 is provided with an oil discharge hole 317, one section 3161 of the shaft hole is communicated with the oil discharge hole 317, an oil feeding blade 900 is arranged in one section 3161 of the shaft hole, and engine oil in an oil pool moves upwards along the shaft hole 316 under the action of the oil feeding blade 900 and is discharged through the oil discharge hole 317 to supply oil to a friction pair (comprising an upper air cylinder 321, a lower air cylinder 322, an upper bearing 331, a lower bearing 332 and the like) for lubrication.

A shaft plug assembly 800 is arranged at the upper position of the shaft hole second section 3162, a vent hole is formed in the shaft plug assembly 800, and the shaft plug assembly 800 has a second function, namely, in the initial operation stage of the compressor, the gas in the shaft hole 316 can be rapidly exhausted through the shaft plug assembly 800; secondly, in the stable operation stage of the compressor, the shaft plug assembly 800 is expected to seal the shaft hole 316, so as to prevent the engine oil in the shaft hole 316 from being discharged.

However, in the general shaft plug adopted in the prior art, in the initial operation stage of the compressor, the exhaust hole on the shaft plug can exhaust air, but in the stable operation stage of the compressor, the exhaust hole is not blocked, so that a large amount of oil is discharged from the shaft plug, the oil discharge rate of the compressor is increased, and the reliability of the compressor is reduced.

Therefore, the present application provides structural improvements to the plunger assembly 800 in an attempt to solve the above-mentioned problems. Specifically, referring to fig. 5 to 7, the shaft plug assembly 800 includes a shaft plug 810 and a float 820, the shaft plug 810 is fixedly disposed in the shaft hole 316, the float 820 is disposed at a bottom side of the shaft plug 810, the float 820 can move up and down relative to the shaft plug 810, a first exhaust hole 821 is disposed on the float 820, a second exhaust hole 811 is disposed on a bottom wall of the shaft plug 810, and the first exhaust hole 821 and the second exhaust hole 811 are staggered from each other.

The density of the floater 820 is smaller than the lowest density of the engine oil, so that the floater 820 can move upwards under the buoyancy action of the engine oil in the shaft hole, when the floater 820 moves upwards to be attached to the bottom wall of the shaft plug 810, the first exhaust hole 821 and the second exhaust hole 811 are staggered, so that the first exhaust hole 821 and the second exhaust hole 811 are plugged, actually, the floater 820 plugs the bottom air inlet of the second exhaust hole 811, and the bottom wall of the shaft plug 810 plugs the top air outlet of the first exhaust hole 821.

At the stable operation stage of the compressor, the shaft hole 316 is filled with the engine oil, and the floater 820 moves upwards under the buoyancy action of the engine oil, so that the first exhaust hole 821 and the second exhaust hole 811 can be blocked, the engine oil in the shaft hole 316 is prevented from overflowing from the shaft plug assembly 800, the oil discharge rate of the compressor is effectively reduced, the effective lubrication of each friction pair is ensured, and the operation reliability of the compressor is improved.

In the initial operation stage of the compressor, the shaft hole 316 is not filled with oil, and the shaft hole 316 is filled with gas, at this time, the float 820 moves downward under the action of self weight, the float 820 is separated from the bottom wall of the shaft plug 810, a ventilation gap is formed between the float 820 and the bottom wall, the first exhaust hole 821 and the second exhaust hole 811 are both open and unblocked, and the gas in the shaft hole 316 is exhausted through the first exhaust hole 821 and the second exhaust hole 811, so that the gas in the initial operation stage of the compressor is quickly exhausted.

According to different operation stages of the compressor, specifically an initial operation stage and a stable operation stage, the shaft plug assembly 800 makes full use of the characteristics that the shaft hole 316 is not filled with engine oil at the initial operation stage and is filled with the engine oil at the stable operation stage of the compressor, the floater 820 automatically ascends to seal the exhaust hole and avoid the overflow of the engine oil, and the floater 820 automatically descends to open the exhaust hole and perform rapid exhaust.

The shaft plug assembly 800 has a compact overall structure and a small volume, is convenient to assemble into the shaft hole 316, and has strong applicability because the structure of the existing eccentric crankshaft 310 does not need to be changed.

In some embodiments of the present application, a plurality of mounting holes 812 arranged at intervals are formed in the bottom wall of the shaft plug 810, a connecting portion 822 is formed at the top of the float 820, the connecting portion 822 is specifically of a columnar structure, the connecting portion 822 is inserted into the mounting hole 812 and can move up and down along the mounting hole 812, so that the up-and-down movable installation of the float 820 at the bottom of the shaft plug 810 is realized, and the assembly between the connecting portion 822 and the mounting hole 812 plays a role in guiding the up-and-down movement of the float 820.

The outer diameter of the connecting part 822 is smaller than the inner diameter of the mounting hole 812, so that friction between the connecting part and the mounting hole during up-and-down relative movement is reduced, and up-and-down movement resistance of the floater 820 is reduced.

The top of connecting portion 822 is equipped with tapered portion 823, and tapered portion 823 is located the diapire top of axle stopper 810, and the cross section of tapered portion 823 is circular, and the cross section diameter of tapered portion 823 reduces by supreme down gradually, and the tapered portion 823 of being convenient for is by in supreme mounting hole 812 of being filled in down to install float 820 to axle stopper 810.

The diameter of the bottom of the conical portion 823 is larger than that of the mounting hole 812, so that the floater 820 is prevented by the conical portion 823 after being mounted and is not prone to falling off, and the structure is reliable.

In some embodiments of the present application, the float 820 has a cylindrical structure, the outer diameter of the float 820 is smaller than the inner diameter of the shaft hole second segment 3162, a ventilation gap is formed between the float 820 and the inner wall of the shaft hole second segment 3162, and in the exhaust stage, the gas in the shaft hole 316 moves towards the shaft plug 810 through the ventilation gap and the first exhaust hole 821 at the same time, and is finally exhausted from the second exhaust hole 811, thereby greatly improving the exhaust efficiency.

The first exhaust holes 821 are provided in plural, and the plural first exhaust holes 821 are arranged at regular intervals in the circumferential direction of the float 820, thereby increasing the exhaust passage and improving the exhaust efficiency.

The second exhaust hole 811 has one second exhaust hole 811 facing the middle of the area surrounded by the plurality of first exhaust holes 821, and facilitates the collection and discharge of the gas flowing in the multiple directions.

In some embodiments, the shaft plug 810 includes a bottom wall 814 and a plurality of spaced apart extending fins 813, the extending fins 813 extend upward from the bottom wall 814, and a gap is formed between two adjacent extending fins 813. When the shaft plug assembly 800 is installed, the plurality of extending fins 813 are tightened and deformed inwards, the whole shaft plug assembly 800 can be plugged into the shaft hole 316, the bottom edge of the shaft plug 810 is tightly attached to the inner wall of the shaft hole second section 3162, then the extending fins 813 are loosened, the extending fins 813 reset outwards, the extending fins 813 are tightly attached to the inner wall of the shaft hole second section 3162, and due to the elastic deformation of the extending fins 813, the installation of the shaft plug assembly 800 is facilitated, the reliability after the installation is improved, the assembly is not prone to falling off, the sealing fit between the shaft plug and the shaft hole second section 3162 after the installation is improved, only one exhaust channel of the second exhaust hole 821 is arranged on the shaft plug 810 during exhaust, the second exhaust hole 821 is blocked when the exhaust is not needed, the reliable sealing of the top of the shaft hole is achieved, and the engine oil is prevented from overflowing from the position.

In some embodiments of the present application, referring to fig. 8, a flexible sheet 910 is disposed at the bottom of the upper oil blade 900, the flexible sheet 910 is made of a flexible material such as rubber, and a gap (not labeled) is disposed at a middle position of the flexible sheet 910 to separate the flexible sheet 910 into a left sheet and a right sheet. When the oiling blade 900 is static or the rotating speed is relatively low, the flexible sheet 910 and the bottom part of the oiling blade 900 are on the same plane; along with the continuous rising of the rotating speed, the two small flexible sheets can be turned upwards to change the form, so that the oil supply channel is narrowed, and the oil supply amount is reduced.

The reason for providing the flexible sheet 910 is that the fluctuation of the oil supply is not large at different rotation speeds (10-160 Hz), but the oil supply is too large due to the linear change of the pumped oil amount with the rotation speed of the upper oil vane 900 in the prior art, so the flexible sheet 910 can reduce the oil supply by narrowing the upper oil passage at high speed.

The flexible sheet 910 deforms slightly below 60 Hz and deforms severely at 160 Hz.

Oil baffle component

With continued reference to fig. 2, an oil blocking assembly 600 is disposed between the discharge pipe 400 and the motor 200, the oil blocking assembly 600 forms a bent channel, the refrigerant gas compressed by the compression mechanism 300 flows to the discharge pipe 400 through the bent channel, the oil blocking assembly 600 blocks the engine oil above the motor 200 from flowing to the discharge pipe 400, and a dotted arrow in fig. 2 represents a gas flow path.

If the oil blocking assembly 600 is not arranged, refrigerant gas compressed by the compression mechanism 300 directly flows upwards and is directly discharged through the exhaust pipe 400, and a part of refrigerating machine oil is carried, so that the refrigerating machine oil in the compressor is reduced quickly, lubrication of parts in the compressor is affected, and reliability of the compressor is reduced.

Through set up between blast pipe 400 and motor 200 and keep off oily subassembly 600, buckle the passageway and allow gaseous passing through, can block the upflow of liquid machine oil simultaneously, reach gas-liquid separation's effect, reduce the oily rate of spouting of compressor, guarantee the inside machine oil volume of compressor, improve the compressor reliability.

In some embodiments of the present application, referring to fig. 9, the oil blocking assembly 600 includes a first oil blocking member 610 and a second oil blocking member 620, and referring to fig. 2 and 3, the first oil blocking member 610 is located above the motor 200, a certain distance is provided between the first oil blocking member 610 and the motor 200, a first gap 630 is provided between the first oil blocking member 610 and the inner peripheral wall of the housing 100, and a first vent 6111 is provided on the first oil blocking member 610.

The second oil blocking member 620 is disposed on the inner peripheral wall of the housing 100 and located above the first oil blocking member 610, a second gap 640 is formed between the first oil blocking member 610 and the second oil blocking member 620, and a second vent 623 is disposed on the second oil blocking member 620.

The first gap 630 is in communication with the second gap 640, constituting a tortuous path as described above.

The first oil blocking member 610 is specifically located above the rotor 220 of the motor, a through-hole (not shown) is formed in the rotor 220 of the motor, refrigerant gas discharged from the cylinder flows out upward through the through-hole in the rotor, changes in flow direction under the blocking effect of the first oil blocking member 610, cannot flow upward under the blocking of the first oil blocking member 610, but flows toward the inner peripheral wall of the housing 100, flows to the first gap 630, flows upward into the second gap 640, namely flows toward the middle second air vent 623 along the second gap 640 between the first oil blocking member 610 and the second oil blocking member 620, then flows upward into the exhaust pipe 400 through the second air vent 623, and is finally discharged.

The refrigerant gas discharged from the cylinder flows and turns to many times under the effect of the first oil retaining piece 610 and the second oil retaining piece 620, and the refrigerant gas turns to many times and the blocking effect of the first oil retaining piece 610 and the second oil retaining piece 620 on the premise of allowing the gas to flow and discharge, so that the liquid engine oil is blocked, the gas-liquid separation effect is achieved, the liquid engine oil is prevented from being discharged along with the refrigerant gas, and the oil spitting rate is reduced.

The oil baffle assembly 600 makes full use of the space between the motor 200 and the exhaust pipe 400 at the top of the inner cavity, and does not affect the arrangement of the motor 200 and the compression mechanism 300 below.

In some embodiments of the present application, referring to fig. 5, the first oil baffle 610 includes an oil baffle 611 and a connecting piece 612, the oil baffle 611 and the connecting piece 612 are both of a disk-shaped structure, the oil baffle 611 is located above the connecting piece 612, and the oil baffle 611 and the connecting piece 612 are connected to form a whole by a plurality of connecting pillars 613 arranged at intervals.

The connecting piece 612 is disposed on the upper portion of the rotor 220 of the motor and is fixedly connected with the rotor 220 of the motor. The connecting piece 612 also functions as a magnetic shield over the rotor in the prior art.

A first gap 630 is formed between the oil deflector 611 and the inner peripheral wall of the housing 100, and a second gap 640 is formed between the oil deflector 611 and the second oil deflector 620.

As can be seen from fig. 10, the connecting piece 612 and the oil baffle piece 611 are fixedly connected by four connecting pillars 613, the area of the oil baffle piece 611 is larger than that of the connecting piece 612, a through hole 6121 for the main shaft section 311 of the eccentric crankshaft to pass through is formed in the center of the connecting piece 612, and the connecting pillars 613 are located on the outer circumferential side of the eccentric crankshaft 310.

The center of the oil baffle 611 is provided with a second vent port 6111, the second vent port 6111 faces the shaft hole of the eccentric crankshaft 310, so as not to affect the exhaust of the shaft hole of the eccentric crankshaft 310, the first vent port 6111 faces the second vent port 612, the exhaust channel is smooth, and the exhaust efficiency is improved.

In some embodiments of the present application, referring to fig. 11, the second oil blocking member 620 includes a transverse portion 621 and a vertical portion 622 that are integrally formed, the transverse portion 621 extends along a transverse tangent plane of the inner cavity, that is, the transverse portion 621 extends along a horizontal direction, the transverse portion 621 is a disc-shaped structure, a second vent 623 is disposed at a central position of the transverse portion 621, the vertical portion 622 extends downward along a circumferential edge of the transverse portion 621, the vertical portion 622 is fixedly connected to an inner peripheral wall of the housing 100, so as to achieve fixed installation of the second oil blocking member 620, the transverse portion 621 intersects with a projection of the oil blocking sheet 611 on a horizontal plane, the two portions have a certain distance in an up-down direction, and a second gap 640 is formed.

In some embodiments of the present application, the second vent hole 623 is opposite to the air inlet end of the exhaust pipe 400, and the opening area of the second vent hole 623 is larger than the air inlet opening area of the exhaust pipe 400, so as not to affect the exhaust efficiency.

Upper silencer

The upper muffler 351 covers the discharge hole of the upper bearing 331, and referring to fig. 13, an upper discharge hole 3511 is provided in a circumferential wall of the upper muffler 351, and refrigerant gas flowing out of the discharge hole of the upper bearing 331 flows to a side wall of the upper muffler 351 and flows into an inner chamber of the compressor through the upper discharge hole 3511.

By arranging the upper exhaust hole 3511 in the lateral direction, the refrigerant gas discharged from the upper bearing 331 does not directly flow upwards continuously, the upper muffler 351 stops the refrigerant gas, the flow path of the refrigerant gas is diverted under the stop of the upper muffler 351, the refrigerant gas flows to the upper exhaust hole 3511 on the side part of the upper muffler 351 and is then discharged from the upper exhaust hole 3511, and in the flowing and diverting process of the refrigerant gas, liquid engine oil carried by the refrigerant gas is separated, the engine oil content in the refrigerant gas discharged from the upper muffler 351 is reduced, and the oil discharge rate is reduced.

The upper vent 3511 has a circular, rectangular, trapezoidal, triangular, or the like shape.

In some embodiments of the present application, the upper muffler 351 includes a connecting flange portion 3512 and a convex hull portion 3513 which are integrally formed, the convex hull portion 3513 protrudes upward from the connecting flange portion 3512, the connecting flange portion 3512 is fixedly connected with the upper bearing 331 through a connecting member such as a bolt, a cavity is defined between the convex hull portion 3513 and the upper bearing 331, the exhaust hole and the upper exhaust hole 3511 on the upper bearing 331 are both communicated with the cavity, the upper exhaust hole 3511 is formed on the side wall of the convex hull portion 3513, refrigerant gas exhausted from the cylinder flows into the cavity between the convex hull portion 3513 and the upper bearing 331 first, flows into the upper exhaust hole 3511 in the horizontal direction, and is then exhausted.

The convex hull part 3513 is provided with a plurality of extending parts 3514 which are arranged at intervals, a connecting flanging part 3512 positioned between two adjacent extending parts 3514 is fixedly connected with the upper bearing 331 through a connecting piece such as a bolt, an upper exhaust hole 3511 is arranged on the side wall of each extending part 3514, and the extending parts 3514 are arranged, so that on one hand, the connecting flanging part 3512 has a large enough area to be fixedly connected with the upper bearing 331, the connection reliability is improved, on the other hand, the inner cavity surrounded by the convex hull part 3513 can be ensured to be large enough in volume, and the noise reduction effect is improved.

In some embodiments of the present application, the upper vent holes 3511 have a plurality of, at least two upper vent holes 3511 are oppositely disposed, so as to increase the flow path and the flow efficiency of the refrigerant gas.

Bottom silencer

As described above, since the walls of the upper bearing 331, the upper cylinder 321, the middle partition 340, the lower cylinder 322, and the lower bearing 332 are provided with a plurality of through holes penetrating vertically, the compressed air in the lower bearing 332 and the lower muffler 352 is discharged upward through the through holes into the space surrounded by the upper bearing 331 and the upper muffler 351, and then discharged into the inner chamber of the compressor through the exhaust holes in the upper muffler 351, the engine oil entrained in the refrigerant gas discharged from the lower cylinder 322 is deposited inside the lower muffler 352 after the compressor is operated for a long time, and when the oil is accumulated in a large amount, the problems of high exhaust resistance, high oil discharge rate, and high noise are caused.

Therefore, in some embodiments of the present application, the through hole is eliminated, and referring to fig. 12, the air duct 500 is connected to the bottom of the lower muffler 352, and the other end of the air duct 500 extends upward above the oil sump of the compressor, that is, specifically above the upper bearing 331.

Because the pressure in the lower muffler 352 is greater than the pressure at the upper part of the upper bearing 331, the engine oil is discharged from the upper part under the driving of the air pressure, so that the effect of removing the accumulated oil in the lower muffler 352 is achieved, and meanwhile, the effects of reducing the exhaust resistance and reducing the oil discharge rate and noise are achieved.

In some embodiments of the present application, a sink groove (not shown) is formed at the bottom of the lower muffler 352, and one end of the air duct 500 is connected to the sink groove, so as to facilitate the collection and discharge of the engine oil.

In some embodiments of the present application, the air outlet of the air duct 500 faces the inner wall of the casing 100 of the compressor, and a guiding structure is disposed at the outlet of the air duct 500, so that the air flowing out from the air duct 500 flows obliquely downward, and the engine oil entrained in the air discharged from the air duct 500 is sprayed onto the inner wall of the casing 100 and then flows back to the oil pool along the inner wall.

The guiding structure may have various implementations, for example, the air outlet end of the air guiding tube 500 is inclined downwards by a certain angle, or a guiding inclined wall is disposed on the inner wall of the air outlet.

In some embodiments of the present application, referring to fig. 14, the airway tube 500 includes a first airway tube section 510, a second airway tube section 520, a third airway tube section 530, and a fourth airway tube section 540, which are sequentially connected, where the first airway tube section 510 extends upward from the bottom of the lower muffler 352 to the inner cavity of the lower muffler 352, the second airway tube section 520 extends from the first airway tube section 510 to the circumferential outer side of the lower muffler 352, the third airway tube section 530 extends upward from the second airway tube section 520 to the upper side of the oil sump of the compressor, that is, to the upper side of the upper bearing 331, and the fourth airway tube section 540 extends from the third airway tube section 530 toward the inner wall of the casing 100 of the compressor. Airway tube 500 is generally located outside of compression mechanism 300, making full use of this portion of space.

Oil return structure

This application presents two kinds of oil return structures.

First, in some embodiments, referring to fig. 15, the casing 100 is provided with a plurality of grooves 110 arranged at intervals along a circumferential direction of the casing 100, the grooves 100 protrude toward an outer side of the casing 100, and an oil return passage is formed between the stator 210 of the motor and the grooves 110, which helps to improve oil return efficiency and overall energy efficiency of the compressor.

Secondly, in other embodiments, referring to fig. 16 and 17, an oil return pipe 700 is disposed outside the casing 100, one end of the oil return pipe 700 is communicated with the space above the motor 200 and is located below the bent passage, the other end of the oil return pipe 700 is communicated with an oil sump in the inner cavity of the compressor, and the upper and lower spaces of the motor 200 are communicated through the external oil return pipe 700, so that the engine oil above the motor 200 can smoothly flow back into the oil sump, and the oil supply of the pump body of the compressor is ensured. The dotted line in fig. 17 represents the upper surface of the oil pool.

The oil return pipe 700 can be provided in plurality, so that the oil return efficiency is improved.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A compressor is provided with a compression mechanism for compressing refrigerant in an inner cavity, the compression mechanism comprises an eccentric crankshaft, a shaft hole which is axially through and extends along the eccentric crankshaft is arranged in the eccentric crankshaft,

the shaft plug assembly comprises a shaft plug and a floater, the shaft plug is arranged in the shaft hole, the floater is arranged on the bottom side of the shaft plug, a first exhaust hole is formed in the floater, a second exhaust hole is formed in the bottom wall of the shaft plug, and the first exhaust hole and the second exhaust hole are staggered;

the floater moves upwards under the buoyancy action of engine oil in the shaft hole and is attached to the bottom wall of the shaft plug so as to plug the first exhaust hole and the second exhaust hole;

the float moves downward by its own weight, separating from the bottom wall of the shaft plug to open the first and second exhaust holes.

2. Compressor in accordance with claim 1,

the bottom wall of the shaft plug is provided with a plurality of mounting holes which are arranged at intervals, the top of the floater is provided with a connecting part, and the connecting part is inserted into the mounting holes and can move up and down along the mounting holes.

3. The compressor of claim 2,

the top of connecting portion is equipped with tapered portion, tapered portion is located the diapire top of axle stopper, tapered portion's cross section is circular, tapered portion's cross section diameter reduces from bottom to top gradually, tapered portion's bottom diameter is greater than the diameter of mounting hole.

4. The compressor of claim 1,

the shaft hole comprises a shaft hole section and a shaft hole section which are communicated up and down;

an oil discharge hole is formed in the wall which encloses one section of the shaft hole, and an oiling blade is arranged in one section of the shaft hole;

the axle stopper subassembly is located the position department that leans on in the shaft hole two-stage section, the periphery wall of axle stopper with the internal perisporium of shaft hole two-stage section pastes, the external diameter of float is less than the internal diameter of shaft hole two-stage section.

5. The compressor of claim 4,

the bottom of the oiling blade is provided with a flexible sheet.

6. The compressor according to any one of claims 1 to 5,

the compressor is characterized in that a motor is further arranged above the compression mechanism in an inner cavity of the compressor, the eccentric crankshaft is connected with the motor, an exhaust pipe is arranged at the top of the compressor, an oil blocking component is arranged between the motor and the exhaust pipe, the oil blocking component forms a bent channel, refrigerant gas compressed by the compression mechanism flows to the exhaust pipe through the bent channel, and the oil blocking component blocks engine oil above the motor to flow to the exhaust pipe.

7. The compressor of claim 5,

the oil blocking assembly comprises a first oil blocking piece and a second oil blocking piece;

the first oil blocking piece is positioned above the motor and has a certain distance with the motor, a first gap is formed between the first oil blocking piece and the inner peripheral wall of the shell of the compressor, and a first vent hole opposite to the shaft hole is formed in the first oil blocking piece;

the second oil blocking piece is arranged on the inner peripheral wall of the shell and positioned above the first oil blocking piece, a second gap is formed between the first oil blocking piece and the second oil blocking piece, a second vent hole is formed in the second oil blocking piece, and the first vent hole is opposite to the second vent hole;

the first gap and the second gap form the bending channel, and the second vent is communicated with the bending channel.

8. The compressor of claim 7,

the first oil blocking piece comprises an oil blocking sheet and a connecting sheet, the oil blocking sheet is positioned above the connecting sheet, and the oil blocking sheet is connected with the connecting sheet through a plurality of connecting stand columns which are arranged at intervals;

the connecting sheet is arranged on the upper part of the rotor of the motor and is fixedly connected with the rotor of the motor;

the oil blocking sheet and the inner peripheral wall of the shell are provided with the first gap, the oil blocking sheet and the second oil blocking piece are provided with the second gap, and the oil blocking sheet is provided with the first air vent.

9. The compressor of claim 7,

the second keeps off oily piece includes horizontal portion and vertical portion, horizontal portion follows the horizontal tangent plane of inner chamber extends, be equipped with in the horizontal portion the second vent, vertical portion follows the circumferential edge downwardly extending of horizontal portion, vertical portion with the internal perisporium fixed connection of casing, horizontal portion with have between the fender oil film the second clearance.

10. An air conditioner characterized by comprising the compressor according to any one of claims 1 to 9.

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