CN218151418U - Compressor and air conditioner - Google Patents

Abstract

The utility model discloses a compressor and air conditioner is equipped with compressing mechanism and motor in the inner chamber of compressor, and the top of casing is equipped with the blast pipe, and the blast pipe is located the top of motor, and the refrigerant gas after the compressing mechanism compression is discharged through the blast pipe, is equipped with between blast pipe and the motor and keeps off oily subassembly, keeps off oily subassembly and forms the passageway of buckling, and the refrigerant gas after the compressing mechanism compression is through buckling passageway flow direction blast pipe, keeps off oily subassembly and blocks the machine oil flow direction blast pipe above the motor. The oil on the upper part of the motor is blocked by the oil blocking component and cannot be discharged along with refrigerant gas, so that the oil discharge rate of the compressor is reduced, the oil amount in the compressor is ensured, and the reliability of the compressor is improved.

Description

Compressor and air conditioner

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to a rolling rotor formula compressor and 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 heat is released to the surrounding 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 sheet is installed in the sliding sheet groove of the cylinder, the piston is always propped against under the action of the compression spring in the spring hole to enable the piston to do reciprocating motion in the sliding sheet groove, the sliding sheet 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 finish one-time exhaust, and the compressor compresses the air.

In the operation process of the compressor, the mixture of the refrigerant and the refrigerating machine oil is discharged from the cylinder, the mixture flows upwards through the oil hole in the middle of the motor rotor and is discharged through the exhaust pipe at the top, and a part of the refrigerating machine oil can be carried out, so that the refrigerating machine oil in the compressor is quickly reduced, the lubrication of parts in the compressor is influenced, and the reliability of the compressor is reduced.

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

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a compressor and air conditioner sets up between motor and top exhaust pipe and keeps off oily structure, forms to the machine oil on motor upper portion and stops and can't reduce the oily rate of spitting of compressor along with refrigerant gas outgoing, guarantees the inside machine oil volume of compressor, improves the compressor reliability.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in some embodiments of the present application, there is provided a compressor including:

the compressor comprises a shell, a compressor body and a motor, wherein a closed inner cavity is formed in the shell, and a compression mechanism and the motor are arranged in the inner cavity;

the exhaust pipe is arranged at the top of the shell, is positioned above the motor and is used for exhausting the refrigerant gas compressed by the compression mechanism;

the oil blocking component is arranged between the exhaust pipe and the motor, 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 engine oil above the motor flows to the exhaust pipe.

Through set up between blast pipe and motor and keep off oily subassembly, the passageway of buckling allows gaseous passing through, can block the upflow of liquid machine oil simultaneously, reaches gas-liquid separation's effect, reduces the oily rate of spitting of compressor, guarantees the inside machine oil volume of compressor, improves 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, and a first gap is formed between the first oil blocking piece and the inner peripheral wall of the shell;

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, and a vent is formed in the second oil blocking piece;

the first gap and the second gap form the bent channel, and refrigerant gas flows to the exhaust pipe through the bent channel and the vent hole.

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 turns to many times and the blocking effect of the first oil retaining piece and the second oil retaining piece on the premise of allowing 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.

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 pillars 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 first gap is arranged between the oil retaining sheet and the inner peripheral wall of the shell, and the second gap is arranged between the oil retaining sheet and the second oil retaining member.

In some embodiments of the present application, an eccentric crankshaft is inserted into a rotor of the motor, a through hole for the eccentric crankshaft to pass through is formed in the connecting piece, and the connecting upright posts are located on the outer peripheral side of the eccentric crankshaft.

In some embodiments of the present application, the oil baffle is provided with a through hole, and the through hole is opposite to the shaft hole of the eccentric crankshaft.

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 blow vent, vertical portion is followed the peripheral 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.

In some embodiments, the vent opening is opposite to the air inlet end of the exhaust pipe, and the opening area of the vent opening is larger than the air inlet opening area of the exhaust pipe.

In some embodiments of this application, be equipped with a plurality of recesses of arranging along its circumference interval on the casing, the recess orientation the outside protrusion of casing, the stator of motor with form oil return passage between the recess.

In some embodiments of the present application, the outside of casing is equipped with back oil pipe, the one end that returns oil pipe with the top space intercommunication of motor, and be located the below of passageway buckles, the other end that returns oil pipe with oil bath intercommunication in the inner chamber of compressor.

The utility model also provides an air conditioner, include as above the compressor.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read 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 required to be used in the description of the embodiments or 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 for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural view 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 view of an assembly structure of an oil baffle assembly and an eccentric crankshaft according to an embodiment;

FIG. 5 is a schematic structural view of a first oil retainer according to an embodiment;

FIG. 6 is a schematic structural view of a second oil retainer according to an embodiment;

FIG. 7 is a schematic structural diagram of a compression mechanism according to an embodiment;

FIG. 8 is a schematic structural diagram of an upper muffler according to an embodiment;

FIG. 9 is a schematic view of a configuration of an airway tube according to an embodiment;

FIG. 10 is a schematic structural diagram of a housing according to an embodiment;

FIG. 11 is a schematic diagram of an arrangement structure of an oil return pipe according to an embodiment;

FIG. 12 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;

321-upper cylinder, 322-lower cylinder;

331-upper bearing, 332-lower bearing;

340-a middle separator;

351-upper silencer, 3511-second vent hole, 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 tube, 510-airway tube first segment, 520-airway tube second segment, 530-airway tube third segment, 540-airway tube fourth segment;

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

700-oil return pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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, "a plurality" means 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 the present application can be understood in a specific case by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. 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. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples 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 reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use 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 heat is released to the surrounding 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 an expansion valve may be provided in 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 functions 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 the moment), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, so that the aim of increasing the indoor temperature is fulfilled. 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 to 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 shell 100 includes a top shell, a bottom shell, and a circumferential shell disposed between the top shell and the bottom shell, the top shell, the bottom shell, and the circumferential shell enclosing an inner cavity of the compressor.

The exhaust pipe 400 is connected to the top case, the intake pipe (not shown) is connected to the circumferential case 130, and the intake pipe is communicated with the 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.

The eccentric crankshaft 310 comprises 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 in sequence from top to bottom, an upper piston 361 capable of performing eccentric motion is arranged 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 plate 340 is sleeved on the connecting shaft section 313, and the middle partition plate 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 perform eccentric rotation simultaneously, the compressed air in the compression cavity of the upper cylinder 321 is discharged through the exhaust hole on the upper bearing 331, and the compressed air in the compression cavity of the lower cylinder 322 is discharged through the 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 the compressed air in the upper cylinder 321 is firstly exhausted into the 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 the 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 are provided with a plurality of through holes (not shown) penetrating vertically, so that the compressed air in the lower bearing 332 and the lower muffler 352 is discharged upward into the space surrounded by the upper bearing 331 and the upper muffler 351 through the through holes, and then discharged 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.

[ oil retaining Member ]

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, the passageway of buckling allows gaseous passing through, can block the upflow of liquid machine oil simultaneously, reaches gas-liquid separation's effect, reduces the oily rate of spitting of compressor, guarantees the inside machine oil volume of compressor, improves the compressor reliability.

In some embodiments of the present application, referring to fig. 4, 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 distance is provided between the first oil blocking member 610 and the motor 200, and a first gap 630 is provided between the first oil blocking member 610 and the inner peripheral wall of the housing 100.

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 vent 623 is disposed on the second oil blocking member 620.

The first gap 630 communicates with the second gap 640 to form the above-mentioned bent passage, and the refrigerant gas flows toward the discharge pipe 400 through the bent passage and the vent 623.

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 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 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 piece above the rotor in the prior art.

A first gap 630 is formed between the oil deflector 611 and the inner circumferential 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. 5, the connecting piece 612 and the oil baffle 611 are fixedly connected by four connecting pillars 613, the area of the oil baffle 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 through hole 6111, and the through hole 6111 is opposite to the shaft hole of the eccentric crankshaft 310, so as not to affect the exhaust of the shaft hole of the eccentric crankshaft 310.

In some embodiments of the present application, referring to fig. 6, 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 section 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 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 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 the horizontal plane, and the transverse portion 621 and the projection of the oil blocking sheet 611 have a certain distance in the up-down direction to form a second gap 640.

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

[ Upper muffler ]

Referring to fig. 8, the discharge hole of the upper bearing 331 is referred to as a first discharge hole, and the upper muffler 351 covers the first discharge hole, and a second discharge hole 3511 is provided in a circumferential wall of the upper muffler 351, so that the refrigerant gas flowing out of the first discharge hole flows toward a side wall of the upper muffler 351 and flows into an inner chamber of the compressor through the second discharge hole 3511.

By arranging the second exhaust hole 3511 laterally, the refrigerant gas discharged from the upper bearing 331 does not directly flow upwards continuously, the upper muffler 351 blocks the refrigerant gas, the flow path of the refrigerant gas is diverted by the upper muffler 351, the refrigerant gas flows to the second exhaust hole 3511 on the side of the upper muffler 351 and is then discharged from the second exhaust hole 3511, and in the process of flow diversion of the refrigerant gas, liquid engine oil carried by the refrigerant gas is separated, the content of the engine oil in the refrigerant gas discharged from the upper muffler 351 is reduced, and the oil discharge rate is reduced.

The second exhaust holes 3511 may be circular, rectangular, trapezoidal, triangular, or the like.

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 first exhaust hole and the second exhaust hole 3511 are both communicated with the cavity, a second exhaust hole 3511 is formed in a side wall of the convex hull portion 3513, refrigerant gas exhausted from the first exhaust hole of the cylinder flows into the cavity between the convex hull portion 3513 and the upper bearing 331 first, flows to the second exhaust hole 3511 in a 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, and the like, the side wall of each extending part 3514 is provided with a second exhaust hole 3511, 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 volume of an inner cavity surrounded by the convex hull part 3513 can be ensured to be large enough, and the noise reduction effect is improved.

In some embodiments, the second exhaust holes 3511 are provided in plurality, and at least two second exhaust holes 3511 are disposed opposite to each other, so as to increase the circulation path and the circulation efficiency of the refrigerant gas.

[ lower 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. 7, 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 silencer 352 is larger than the pressure on the upper part of the upper bearing 331, the engine oil is discharged from the upper part under the drive of the air pressure, so that the effect of removing the accumulated oil in the lower silencer 352 is achieved, and meanwhile, the effects of reducing the exhaust resistance and reducing the oil spitting rate and noise are achieved.

In some embodiments of the present application, a sink (not shown) is disposed at the bottom of the lower muffler 352, and one end of the air duct 500 is communicated with the sink, 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. 9, 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. 10, a plurality of grooves 110 are formed on the casing 100 at intervals along the circumferential direction of the casing 100, the grooves 100 protrude toward the outside of the casing 100, and an oil return channel 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. 11 and 12, 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. 12 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 is only a specific embodiment of the present invention, but the protection 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 should be covered within the protection 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, comprising:

the compressor comprises a shell, a compressor body and a motor, wherein a closed inner cavity is formed in the shell, and a compression mechanism and the motor are arranged in the inner cavity;

the exhaust pipe is arranged at the top of the shell, is positioned above the motor and is used for exhausting the refrigerant gas compressed by the compression mechanism;

the oil blocking component is arranged between the exhaust pipe and the motor, 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 engine oil above the motor flows to the exhaust pipe.

2. The compressor of claim 1,

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, and a first gap is formed between the first oil blocking piece and the inner peripheral wall of the shell;

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, and a vent is formed in the second oil blocking piece;

the first gap and the second gap form the bent passage, and refrigerant gas flows to the exhaust pipe through the bent passage and the vent hole.

3. The compressor of claim 2,

the first oil blocking piece comprises an oil blocking piece and a connecting piece, the oil blocking piece is positioned above the connecting piece, and the oil blocking piece is connected with the connecting piece through a plurality of connecting upright posts 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 first gap is arranged between the oil retaining sheet and the inner peripheral wall of the shell, and the second gap is arranged between the oil retaining sheet and the second oil retaining member.

4. The compressor of claim 3,

the motor is characterized in that an eccentric crankshaft penetrates through a rotor of the motor, a through hole for the eccentric crankshaft to penetrate through is formed in the connecting piece, and the connecting upright columns are located on the outer peripheral side of the eccentric crankshaft.

5. The compressor of claim 4,

the oil baffle is provided with a through hole, and the through hole is over against the shaft hole of the eccentric crankshaft.

6. Compressor according to claim 3,

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 blow vent, vertical portion follows the circumference 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.

7. The compressor of any one of claims 2 to 6,

the vent hole is right opposite to the air inlet end of the exhaust pipe, and the opening area of the vent hole is larger than the air inlet opening area of the exhaust pipe.

8. The compressor of any one of claims 1 to 6,

be equipped with a plurality of recesses of arranging along its circumference interval on the casing, the recess orientation the outside protrusion of casing, the stator of motor with form oil return channel between the recess.

9. The compressor of any one of claims 1 to 6,

and an oil return pipe is arranged on the outer side of the shell, one end of the oil return pipe is communicated with the upper space of the motor and is positioned below the bent passage, and the other end of the oil return pipe is communicated with an oil pool in the inner cavity of the compressor.

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

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