CN115929644A - Pump body oil circuit structure, pump body, compressor and air conditioner - Google Patents

Abstract

The invention provides a pump body oil circuit structure, a pump body, a compressor and an air conditioner, wherein the pump body oil circuit structure comprises: the oil-saving flange comprises an upper flange, wherein an upper oil groove, an oil storage groove and a lower oil groove are arranged on the inner wall of an axle hole of the upper flange, the lower end of the upper oil groove can be used for sucking oil, the upper end of the upper oil groove extends upwards to the upper end and is communicated with the oil storage groove, the oil storage groove extends on the inner wall of the upper flange along the horizontal direction, the upper end of the lower oil groove is communicated with the oil storage groove so as to suck oil from the oil storage groove, the lower oil groove extends downwards, an oil return inclined hole is further formed in the upper flange, the oil return inclined hole extends downwards in an inclined mode, the upper end of the oil return inclined hole is communicated with the lower end of the lower oil groove, and the lower end of the oil return inclined hole extends to the lower end face of the upper flange so as to guide the oil out of an oil pool below the upper flange. According to the invention, the oil discharge rate can be reduced to the maximum extent, and the lubricating effect can be improved.

Description

Pump body oil circuit structure, pump body, compressor and air conditioner

Technical Field

The invention relates to the technical field of compressors, in particular to a pump body oil way structure, a pump body, a compressor and an air conditioner.

Background

The conventional rolling rotor compressor mainly comprises a pump body assembly, a motor assembly, a liquid distributor component, a shell assembly, an upper cover, a lower cover and the like. The casing subassembly forms airtight type structure with the cooperation of upper and lower cover, and the casing is inside mainly to be become by pump body subassembly and two parts of motor element, and pump body subassembly includes main spare parts such as upper flange, cylinder, bent axle, roller, lower flange, and each spare part mutually supports and forms inclosed cavity, and motor element then includes stator module and rotor subassembly. The rotary compressor generates driving force to a crankshaft of the pump body through the action of electromagnetic force generated between the motor rotor assembly and the stator assembly, and the volume of a cavity of the pump body is continuously changed to periodically suck, compress and exhaust air under the action of the rotation driving of the crankshaft. The oil-gas mixture gas discharged from the pump body cavity enters the motor lower cavity space, then passes through the motor circulation channel hole to reach the motor upper cavity, and then is discharged out of the compressor to enter the air conditioning system.

The lubrication between the friction pairs of the compressor pump body mainly depends on an oil circuit in the pump body to pump lubricating oil to the contact surface of the moving part, thereby playing the effects of lubrication, cooling and heat dissipation. The main and auxiliary bearing oil circuit structure of the conventional rolling rotor compressor is as follows: the bent axle is provided with central oilhole, and the bent axle major and minor axis root designs respectively has the side oilhole that link up with bent axle central oilhole, is equipped with the pump oil device in the bent axle central oilhole, and the interior disc of upper flange and lower flange is provided with the spiral oil groove respectively. When the compressor runs, under the action of the crankshaft central oil hole oil pumping device, lubricating oil in the bottom oil pool is pumped into the central oil hole, pumped to the end parts of the inner circular surfaces of the lower flange and the upper flange through the side oil holes at the root parts of the crankshaft long and short shafts, and pumped to the surfaces of friction pairs (main and auxiliary bearings) of the upper flange and the lower flange and the crankshaft long and short shafts through spiral oil grooves on the upper flange and the lower flange respectively, so that oil circuit lubrication of the main and auxiliary bearings is realized.

When the compressor runs at high frequency, friction of moving parts generates a large amount of heat energy, if the oil pumping amount is insufficient, the heat dissipation is insufficient, the pump body is rapidly heated, the working cavity of the cylinder is heated, and the volumetric efficiency is reduced; meanwhile, the exhaust temperature rises rapidly, resulting in a decrease in the efficiency of the motor and finally in a decrease in the performance of the compressor. At the same time, at high frequencies, the requirements for lubrication between the contact surfaces of the moving parts are higher, especially between the crankshaft and the upper flange, and sufficient lubrication oil needs to be provided for lubrication.

In addition, when the compressor runs, oil drops are filled in the cavity, one of the main sources of the oil drops is that a lubricating oil path of the pump body is directly communicated with a lower motor cavity, and under the action of centrifugal force and gas force, oil liquid of the lubricating oil path enters an upper motor cavity and is discharged into a system, so that the oil discharge rate of the compressor during high-frequency running is high, the performance of the compressor is reduced, and the reliability risk of oil shortage in the compressor is increased.

In the compressor in the prior art, a large amount of lubricating oil pumped by a spiral oil groove on an upper flange of a lubricating oil path of a pump body is pumped into a lower cavity of a motor, and flows back only by gravity, most of the lubricating oil is carried into an upper cavity of the motor by high-speed airflow impact and is discharged out of a compressor shell, so that the technical problem that the oil-spitting rate of the compressor is too high and the like is solved.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that lubricating oil is easy to be carried into the upper cavity of the motor by high-speed airflow and discharged out of the shell of the compressor, so that the oil discharge rate of the compressor is too high in the compressor in the prior art, thereby providing a pump body oil path structure, a pump body, a compressor and an air conditioner.

In order to solve the above problems, the present invention provides a pump body oil path structure, including:

go up the flange, be provided with oil groove, oil storage tank and lower oil groove on the shaft hole inner wall of going up the flange, the lower extreme of going up the oil groove can be used for inhaleing oil, go up the oil groove upwards extend to its upper end with the oil storage tank intercommunication, the oil storage tank is in along the horizontal direction extend on the inner wall of going up the flange, down the oil groove the upper end with the oil storage tank intercommunication, in order to follow inhale oil in the oil storage tank, oil groove downwardly extending down, the inside of going up the flange still is provided with the oil return inclined hole, oil return inclined hole slope downwardly extending, just the upper end of oil return inclined hole with the lower extreme intercommunication of oil groove down, the lower extreme of oil return inclined hole extends to go up the lower terminal surface of flange to can with oil derivation extremely in the oil bath of the below of going up the flange.

In some embodiments, the oil return inclined hole is straight hole, and it all is the slope setting with horizontal direction and vertical direction, the extending direction of oil return inclined hole with go up the axial of flange and press from both sides the contained angle of establishing (0,90 °), just the extending direction and the horizontal direction of oil return inclined hole press from both sides the contained angle of establishing (0,90 °), the axial of going up the flange is along vertical direction, the axial terminal surface of going up the flange is along the horizontal direction.

In some embodiments, still be provided with annular flexible groove on the upper flange, annular flexible groove be located the periphery of shaft hole inner wall and with shaft hole inner wall interval default distance, the oil return inclined hole with the end of meeting of oil groove is located down the top of the upper end of annular flexible groove.

In some embodiments, the upper oil groove is a spiral oil groove structure formed on an inner wall of the upper flange, the upper oil groove extends spirally upwards from a lower end to an upper end thereof, a rotation direction of the upper oil groove from the lower end to the upper end thereof is the same as a rotation direction of a crankshaft, and the upper flange is sleeved on the periphery of the crankshaft; the lower oil groove is of a spiral oil groove structure formed in the inner wall of the upper flange, the lower oil groove extends downwards in a spiral mode from the upper end to the lower end of the lower oil groove, and the rotating direction of the lower oil groove from the upper end to the lower end of the lower oil groove is the same as that of the crankshaft.

In some embodiments, an upper end of the upper oil groove communicates with a first location of the oil storage groove, an upper end of the lower oil groove communicates with a second location of the oil storage groove, and the first location and the second location are located at different locations.

In some embodiments, the oil reservoir includes a first end and a second end along a horizontal direction, the first position is disposed near or coincident with the first end relative to the second end, and the second position is disposed near or coincident with the second end relative to the first end.

In some embodiments, the pump body oil passage structure further comprises a cylinder and a lower flange, the cylinder being disposed between the upper flange and the lower flange; the cylinder is provided with a cylinder communicating channel, the oil return inclined hole is communicated with the cylinder communicating channel, and oil can be discharged into the oil pool through the cylinder communicating channel; or be provided with cylinder intercommunication passageway on the cylinder and be provided with lower flange intercommunication passageway on the lower flange, the oil return inclined hole in proper order with cylinder intercommunication passageway with lower flange intercommunication passageway intercommunication can pass through cylinder intercommunication passageway with lower flange intercommunication passageway is extremely with oil drain in the oil bath.

In some embodiments, the cylinder communication passage includes a first oil return hole and a second oil return hole which are disposed inside the cylinder, the first oil return hole extends in an axial direction of the cylinder, an upper end of the first oil return hole is opposite to and communicates with a lower end of the oil return inclined hole, the second oil return hole extends in a radial direction of the cylinder, and one end of the second oil return hole communicates with a lower end of the first oil return hole, and the other end communicates with a radial outside of the cylinder.

In some embodiments, the second oil return hole has a gradually increasing cross-sectional flow area in a radially outward direction.

In some embodiments, the cylinder communication passage includes a first oil return hole provided inside the cylinder, the first oil return hole extending in an axial direction of the cylinder and an upper end of the first oil return hole being opposite to and communicating with a lower end of the oil return slant hole, the first oil return hole penetrating the cylinder in the axial direction such that a lower end of the first oil return hole extends to a lower end surface of the cylinder;

the lower flange communication channel comprises a third oil return hole and a fourth oil return hole which are arranged inside the lower flange, the third oil return hole extends along the axial direction of the lower flange, the upper end of the third oil return hole is opposite to and communicated with the lower end of the first oil return hole, the fourth oil return hole extends along the radial direction of the lower flange, one end of the fourth oil return hole is communicated with the lower end of the third oil return hole, and the other end of the fourth oil return hole is communicated to the radial outside of the lower flange.

In some embodiments, the cylinder communication passage includes a first oil return hole provided inside the cylinder, the first oil return hole extending in an axial direction of the cylinder and an upper end of the first oil return hole being opposite to and communicating with a lower end of the oil return slant hole, the first oil return hole penetrating the cylinder in the axial direction such that a lower end of the first oil return hole extends to a lower end surface of the cylinder;

the lower flange communication channel comprises a third oil return hole arranged inside the lower flange, the third oil return hole extends along the axial direction of the lower flange, the upper end of the third oil return hole is opposite to and communicated with the lower end of the first oil return hole, and the third oil return hole penetrates through the lower flange along the axial direction, so that the lower end of the third oil return hole extends to the lower end face of the lower flange to conduct oil to the lower side of the lower flange.

In some embodiments, the cylinder intercommunication passageway including set up in the oblique oil groove of the up end of cylinder, oblique oil groove is for following the up end of cylinder extends to through the cutting the radial outer circumference's of cylinder chute, oblique oil groove's upper end with the lower extreme intercommunication of oil return inclined hole, oblique oil groove's lower extreme slope extends to the radial periphery of cylinder to can lead to oil to the radial outside of cylinder.

In some embodiments, an included angle between the oil return inclined hole and the horizontal direction is α, and an included angle between the extending direction from the upper end to the lower end of the inclined oil groove and the horizontal direction is β, where α is not greater than β.

In some embodiments, the pump body oil path structure further includes an upper cylinder, a partition plate, a lower cylinder and a lower flange, and the upper flange, the upper cylinder, the partition plate, the lower cylinder and the lower flange are sequentially connected in the axial direction;

an upper cylinder communicating channel is arranged in the upper cylinder, the oil return inclined hole is communicated with the upper cylinder communicating channel, and oil can be discharged into the oil pool through the upper cylinder communicating channel;

or an upper cylinder communicating channel is arranged in the upper cylinder, a partition plate communicating channel is arranged in the partition plate, the oil return inclined hole is sequentially communicated with the upper cylinder communicating channel and the partition plate communicating channel, and oil can be discharged into the oil pool sequentially through the upper cylinder communicating channel and the partition plate communicating channel;

or an upper cylinder communicating channel is arranged in the upper cylinder, a partition communicating channel is arranged in the partition, a lower cylinder communicating channel is arranged in the lower cylinder, and the oil return inclined hole is communicated with the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel in sequence and can discharge oil into the oil pool through the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel in sequence;

or go up cylinder inside be provided with cylinder intercommunication passageway the inside baffle intercommunication passageway that is provided with of baffle the cylinder intercommunication passageway under inside being provided with of lower cylinder and flange intercommunication passageway under inside being provided with, the oil return inclined hole in proper order with go up cylinder intercommunication passageway baffle intercommunication passageway under cylinder intercommunication passageway with flange intercommunication passageway intercommunication can loop through go up cylinder intercommunication passageway baffle intercommunication passageway with lower cylinder intercommunication passageway and lower flange intercommunication passageway extremely with oil drain in the oil bath.

In some embodiments, the upper cylinder communication channel includes a fifth oil return hole disposed inside the upper cylinder, the fifth oil return hole extends in an axial direction of the upper cylinder, an upper end of the fifth oil return hole is opposite to and communicated with a lower end of the oil return inclined hole, and the fifth oil return hole axially penetrates through the upper cylinder, so that the lower end of the fifth oil return hole extends to a lower end surface of the upper cylinder;

the baffle intercommunication passageway including set up in the inside sixth oil gallery and the seventh oil gallery of baffle, the sixth oil gallery is followed the axial extension of baffle and the upper end of sixth oil gallery with the lower extreme of fifth oil gallery is relative and the intercommunication, the seventh oil gallery is followed the radial direction of baffle extends, just the one end of seventh oil gallery with the lower extreme intercommunication of sixth oil gallery, the other end communicates to the radial outside of baffle.

In some embodiments, an avoiding groove is formed in the partition plate and located at an outlet end of the seventh oil return hole in a cutting manner, a radial inner end of the avoiding groove is communicated with the outlet end of the seventh oil return hole, and a flow cross-sectional area of the avoiding groove is gradually increased along a fluid flowing direction.

In some embodiments, the upper cylinder communication channel includes a fifth oil return hole disposed inside the upper cylinder, the fifth oil return hole extends in an axial direction of the upper cylinder, an upper end of the fifth oil return hole is opposite to and communicated with a lower end of the oil return inclined hole, and the fifth oil return hole axially penetrates through the upper cylinder, so that the lower end of the fifth oil return hole extends to a lower end surface of the upper cylinder;

the partition communicating channel comprises a sixth oil return hole arranged in the partition, the sixth oil return hole extends along the axial direction of the partition, the upper end of the sixth oil return hole is opposite to and communicated with the lower end of the fifth oil return hole, and the sixth oil return hole axially penetrates through the partition, so that the lower end of the sixth oil return hole extends to the lower end face of the partition;

the lower cylinder communication channel comprises an eighth oil return hole and a ninth oil return hole which are arranged inside the lower cylinder, the eighth oil return hole extends along the axial direction of the lower cylinder, the upper end of the eighth oil return hole is opposite to and communicated with the lower end of the sixth oil return hole, the ninth oil return hole extends along the radial direction of the lower cylinder, and one end of the ninth oil return hole is communicated with the lower end of the eighth oil return hole while the other end of the ninth oil return hole is communicated to the radial outside of the lower cylinder.

In some embodiments, the upper cylinder communication channel includes a fifth oil return hole disposed inside the upper cylinder, the fifth oil return hole extends in an axial direction of the upper cylinder, an upper end of the fifth oil return hole is opposite to and communicated with a lower end of the oil return inclined hole, and the fifth oil return hole axially penetrates through the upper cylinder, so that the lower end of the fifth oil return hole extends to a lower end surface of the upper cylinder;

the partition communicating channel comprises a sixth oil return hole arranged inside the partition, the sixth oil return hole extends along the axial direction of the partition, the upper end of the sixth oil return hole is opposite to and communicated with the lower end of the fifth oil return hole, and the sixth oil return hole axially penetrates through the partition, so that the lower end of the sixth oil return hole extends to the lower end face of the partition;

the lower air cylinder communication channel comprises an eighth oil return hole arranged inside the lower air cylinder, the eighth oil return hole extends along the axial direction of the lower air cylinder, the upper end of the eighth oil return hole is opposite to and communicated with the lower end of the sixth oil return hole, and the eighth oil return hole axially penetrates through the lower air cylinder, so that the lower end of the eighth oil return hole extends to the lower end face of the lower air cylinder;

the lower flange communication channel comprises a third oil return hole and a fourth oil return hole which are arranged inside the lower flange, the third oil return hole extends along the axial direction of the lower flange, the upper end of the third oil return hole is opposite to and communicated with the lower end of the eighth oil return hole, the fourth oil return hole extends along the radial direction of the lower flange, one end of the fourth oil return hole is communicated with the lower end of the third oil return hole, and the other end of the fourth oil return hole is communicated to the radial outside of the lower flange.

The invention also provides a pump body which comprises the pump body oil circuit structure and a crankshaft, wherein the crankshaft penetrates into the shaft hole of the upper flange.

In some embodiments, the crankshaft is provided at an inner portion thereof with a center oil hole extending in an axial direction of the crankshaft and side oil holes extending in a radial direction of the crankshaft, one end of the side oil hole communicating with the center oil hole and the other end extending to communicate with a radially outer side of the crankshaft, and the side oil holes are opposed to an inner wall of the upper flange to enable oil to be delivered into the upper oil groove.

The invention also provides a compressor, which comprises the pump body.

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

The invention provides a pump body oil circuit structure, a pump body, a compressor and an air conditioner, which have the following beneficial effects:

according to the invention, through the arrangement of the upper oil groove, the oil storage groove and the lower oil groove, effective lubrication can be effectively carried out between the crankshaft and the upper flange through the upper oil groove, lubricating oil can be stored by utilizing the oil storage groove, and the lubricating oil can be guided out downwards from the lower part of the upper flange through the lower oil groove, so that the problem of overhigh oil discharge rate of a compressor caused by the fact that the lubricating oil enters the lower cavity of the motor upwards is effectively solved, the lubricating oil returns to the lower part of the upper flange as far as possible and cannot be discharged, and the oil discharge rate is reduced; compared with the prior application of the applicant of the invention, the lubricating oil backflow device can guide the lubricating oil backflow from the upper flange to a position closer to the bottom of the oil pool through the arrangement of the oil return inclined hole, so that the backflow lubricating oil directly enters the oil level below the oil level in the oil pool through the drainage channel, the circulation of the lubricating oil path of the pump body in the pump body is optimized, the lubricating oil pumped out from the oil return flow channel is prevented from being directly and radially sprayed to the wall surface of the flange or the wall surface of the shell, the lubricating oil is sprayed to the lower cavity of the motor to enable part of the lubricating oil to flow out along with exhaust, for example, the lubricating oil is sprayed to the wall surface of the hollow cavity along the radial direction to enable part of the lubricating oil to enter the lower cavity of the motor, the problems of oil discharge rate and radial vibration of the compressor caused by the spraying are further improved, and the oil discharge rate can be further reduced compared with the prior application; therefore, oil discharge can be further prevented, and the oil discharge rate can be reduced to the maximum extent.

Drawings

Fig. 1 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 1 of a pump body oil passage structure of the present invention;

FIG. 1-1 is a top view structural view of an upper flange of the pump block assembly oil path structure of FIG. 1;

FIGS. 1-2 are top views of the cylinder of FIG. 1;

fig. 2 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 2 of the pump body oil passage structure of the present invention;

fig. 3 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 3 of the pump body oil passage structure of the present invention;

fig. 4 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 4 of the pump body oil passage structure of the present invention;

FIG. 4-1 is a perspective view of the cylinder of FIG. 4;

fig. 5 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 5 of the pump body oil passage structure of the present invention;

fig. 6 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 6 of the pump body oil passage structure of the present invention;

fig. 7 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 7 of the pump body oil passage structure of the present invention;

fig. 8 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 8 of the pump body oil passage structure of the present invention;

FIG. 8-1 is an enlarged view of a portion of FIG. 8 at M;

fig. 9 is a sectional view of a pump body assembly and an oil passage structure according to embodiment 8 of the pump body oil passage structure of the present invention;

fig. 9-1 is a perspective view of the partition in fig. 8.

The reference numerals are represented as:

1. a pump body assembly; 11. an upper flange; 12. a cylinder; 121. an upper cylinder; 122. a lower cylinder; 13. a crankshaft; 14. a roller; 141. an upper roller; 142. a lower roller; 15. a lower flange; 16. a partition plate; 17. an upper silencer; 18. a lower silencer; 7. an oil sump; 100. oiling a flow path; 1101. an upper oil groove; 1301. a central oil hole; 1302. a side oil hole; 200. an oil return passage; 1102. an oil storage tank; 1103. a lower oil groove; 1109. an oil return inclined hole; 1105. an upper flange hollow cavity; 1106. an annular flexible groove;

300. a drainage channel; 1201. a first oil return hole; 1202. a second oil return hole; 1203. an inclined oil groove; 12101. a fifth oil return hole; 1601. a sixth oil return hole; 1602. a seventh oil return hole; 1603. avoiding the groove; 12201. an eighth oil return hole; 12202. a ninth oil return hole; 1501. a third oil return hole; 1502. and a fourth oil return hole.

Detailed Description

As shown in fig. 1 to 9, the present invention provides a pump body oil passage structure, which includes:

go up flange 11, be provided with upper oil groove 1101, oil storage tank 1102 and lower oil groove 1103 on the shaft hole inner wall of upper flange, the lower extreme of upper oil groove 1101 can be used for inhaleing oil, upper oil groove 1101 upwards extend to its upper end with oil storage tank 1102 intercommunication, oil storage tank 1102 is in along the horizontal direction extend on the inner wall of upper flange 11, down the upper end of oil groove 1103 with oil storage tank 1102 intercommunication is in order to follow inhale oil in the oil storage tank 1102, oil groove downwardly extending down, the inside of upper flange 11 still is provided with oil return inclined hole 1109, oil return inclined hole 1109 slope downwardly extending, just the upper end of oil return inclined hole 1109 with the lower extreme intercommunication of oil groove 1103 down, the lower extreme of oil return inclined hole 1109 extends to the lower terminal surface of upper flange 11 is in order to can lead out oil to in the oil pool of the below of upper flange 11.

According to the invention, through the arrangement of the upper oil groove, the oil storage groove and the lower oil groove, effective lubrication can be effectively carried out between the crankshaft and the upper flange through the upper oil groove, lubricating oil can be stored by utilizing the oil storage groove, and the lubricating oil can be guided out of the oil pool below the upper flange downwards through the lower oil groove, so that the problem of overhigh oil discharge rate of the compressor caused by the fact that the lubricating oil enters the lower cavity of the motor upwards is effectively solved, the lubricating oil can return to the oil pool below the upper flange as far as possible and can not be discharged, and the oil discharge rate is reduced; compared with the prior application of the applicant of the invention, the lubricating oil backflow device can guide the lubricating oil backflow from the upper flange to a position closer to the bottom of the oil pool through the arrangement of the oil return inclined hole, so that the backflow lubricating oil directly enters the oil level below the oil level in the oil pool through the drainage channel, the circulation of the lubricating oil path of the pump body in the pump body is optimized, the lubricating oil pumped out from the oil return flow channel is prevented from being directly and radially sprayed to the wall surface of the flange or the wall surface of the shell, the wall surface of the hollow cavity is sprayed, part of the lubricating oil is sprayed to the lower cavity of the motor and flows out along with exhaust, for example, the lubricating oil is radially sprayed to the back surface of the hollow cavity to cause part of the lubricating oil to enter the lower cavity of the motor, the oil discharge rate and the radial vibration of the compressor caused by the spraying are further improved, and the oil discharge rate can be further reduced compared with the prior application; therefore, oil discharge can be further prevented, and the oil discharge rate can be reduced to the maximum extent.

The invention provides a rolling rotor type compressor pump body assembly which comprises an upper flange, a cylinder, a crankshaft, a roller and a lower flange. Be provided with central oilhole on the bent axle, the bent axle is provided with the side oilhole with the lower extreme root of last flange cooperation axle head, goes up the flange and is provided with spiral oil groove, oil storage tank, oil return channel, is provided with drainage channel on other pump body parts, and the entry of bent axle center oilhole and drainage channel's export communicate with the oil bath respectively, and spiral oil groove, oil storage tank, oil return channel, drainage channel communicate end to end in proper order in bent axle center oilhole, side oilhole and, make up pump body subassembly pump oil return circulation runner jointly. The oil storage tank, the oil return channel and the drainage channel form an oil return flow path.

The upper flange oil return flow passage mainly comprises a lower oil groove and an oil return inclined hole, wherein the lower oil groove is a spiral oil groove or a straight groove arranged on the inner circle surface of the upper flange, one end of the lower oil groove is communicated with an oil storage groove, the other end of the lower oil groove is communicated with the oil return inclined hole, the oil return inclined hole is arranged inside a flange plate of the upper flange, and the oil return inclined hole is of an inclined hole structure with a certain inclination angle, and two ends of the inclined hole structure respectively penetrate through the inner circle surface of the upper flange and the lower end surface of the flange plate. The upper flange oil storage tank is of a crescent groove structure along the radial direction, and the lower oil tank is of a straight tank or a lower spiral oil tank structure with the rotation direction opposite to that of the upper spiral oil tank;

the invention innovatively provides a pump body assembly 1 of a rolling rotor type compressor, which comprises an upper flange 11, a cylinder 12, a crankshaft 13, a roller 14, a lower flange 15 and the like. The crankshaft 13 is provided with a central oil hole 1301, the lower end root of the shaft end of the crankshaft 13 matched with the upper flange 11 is provided with a side oil hole 1302, the upper flange 11 is provided with an upper spiral oil groove (an upper oil groove 1101), an oil storage groove 1102 and an oil return channel, and other pump body parts are provided with drainage channels. The crankshaft center oil hole 1301, the side oil hole 1302, the upper spiral oil groove, the oil storage groove 1102, the oil return channel 200 and the drainage channel 300 are sequentially communicated end to end, and the inlet of the crankshaft center oil hole 1301 and the outlet of the drainage channel are respectively communicated with the oil pool 7 to jointly form a pump body assembly oil pumping and returning circulation flow passage. The crankshaft center oil hole 1301, the side oil hole 1302 and the spiral oil grooves on the upper flange form an oil supply or pumping flow path together, and the oil storage groove 1102, the oil return channel 200 and the drainage channel 300 form an oil return flow path together.

Furthermore, the pump body oil return circulation flow channel of the structure of the present invention has an upper flange oil return flow channel mainly composed of a lower oil groove 1103 and an oil return inclined hole 1109. Wherein, the lower oil groove is a spiral oil groove or a straight groove which is arranged on the inner circle surface of the upper flange 11 and has the opposite rotation direction with the upper spiral oil groove, one end of the lower oil groove is communicated with the oil storage groove 1102, and the other end is communicated with the oil return inclined hole 1109. The upper flange oil return inclined hole 1109 is arranged inside the flange plate of the upper flange 11 and is an inclined hole structure with a certain inclination angle, two ends of the inclined hole structure respectively penetrate through the inner circle surface of the upper flange and the lower end surface of the flange plate. The oil storage tank 1102 of the upper flange is in a crescent groove structure along the radial direction.

The invention simultaneously solves the following technical problems:

1. lubricating oil pumped by a spiral oil groove on an upper flange of a lubricating oil path of a pump body is impacted by airflow and carried into a lower cavity of a motor, and then the lubricating oil flows to an upper cavity of the motor along with the airflow and is discharged out of a shell of a compressor, so that the oil discharge rate of the compressor is overhigh, and the performance and the reliability of the compressor are influenced;

2. the lubricating oil pumped out by the oil return flow passage is directly and radially sprayed to the wall surface of the flange or the wall surface of the shell, so that the wall surface of the hollow cavity is sprayed, part of the lubricating oil is sprayed to the lower cavity of the motor and flows out along with exhaust, and the problems of poor oil discharge rate improvement effect and radial vibration are caused.

Has the advantages that:

1. the invention provides an innovative internal circulation oil return structure of a pump body lubricating oil path, which avoids that lubricating oil pumped out by a spiral oil groove on an upper flange of the pump body lubricating oil path is impacted by airflow and carried into a lower cavity of a motor, and then is discharged out of a compressor shell along with the airflow to the upper cavity of the motor, thereby greatly reducing the oil spitting rate of the compressor and improving the performance and reliability of the compressor;

2. the invention provides an internal circulation drainage channel structure of a pump body lubricating oil path, which is characterized in that lubricating oil which is returned by an upper flange is drained to a position closer to the bottom of an oil pool, so that the returned lubricating oil directly enters the position below the oil level in the oil pool through a drainage channel, the circulation of the pump body lubricating oil path in a pump body is optimized, the lubricating oil which is pumped out by an oil return flow channel is prevented from being directly and radially sprayed to the wall surface of the flange or the wall surface of a shell, the wall surface of a hollow cavity is sprayed, so that part of the lubricating oil is sprayed to a lower cavity of a motor and flows out along with exhaust, and the problems of oil spitting rate and radial vibration of a compressor caused by the spraying of the lubricating oil to the wall surface of the hollow cavity are further improved.

In some embodiments, the oil return inclined hole 1109 is a straight hole, and is disposed in an inclined manner with both the horizontal direction and the vertical direction, an extending direction of the oil return inclined hole 1109 and an axial direction of the upper flange 11 sandwich an included angle (0,90 °), the extending direction of the oil return inclined hole 1109 and the horizontal direction sandwich an included angle (0,90 °), an axial direction of the upper flange 11 is along the vertical direction, and an axial end face of the upper flange 11 is along the horizontal direction. The oil return inclined hole is in an extension direction which forms an inclination angle with the vertical direction and also forms an inclination angle with the horizontal direction, so that oil at the lower end of the lower oil groove can be guided to the lower end face of the upper flange through the oil return inclined hole and cannot flow to the hollow cavity along the transverse direction to impact the hollow cavity in the lower motor cavity above the upper flange, and the oil discharge rate can be further reduced.

In some embodiments, an annular flexible groove 1106 is further disposed on the upper flange 11, the annular flexible groove 1106 is located on the outer periphery of the inner wall of the shaft hole and is spaced from the inner wall of the shaft hole by a preset distance, and the joint end of the oil return inclined hole 1109 and the lower oil groove 1103 is located above the upper end of the annular flexible groove 1106. The oil return inclined hole is a further preferable position of the oil return inclined hole, namely the position of the oil return inclined hole, which is connected with the lower end of the lower oil groove, is positioned above the annular flexible groove, so that the oil return inclined hole is not communicated with the annular flexible groove, the oil in the lower oil groove can be effectively prevented from entering the annular flexible groove, and the situation that the oil return inclined hole cannot absorb the oil is avoided.

In some embodiments, the upper oil groove 1101 is a spiral oil groove structure formed on an inner wall of the upper flange 11, the upper oil groove 1101 extends spirally upward from a lower end to an upper end thereof, a rotation direction of the upper oil groove 1101 from the lower end to the upper end thereof is the same as a rotation direction of a crankshaft, and the upper flange is sleeved on an outer circumference of the crankshaft; the lower oil groove 1103 has a spiral oil groove structure formed on an inner wall of the upper flange 11, the lower oil groove 1103 extends spirally downward from an upper end thereof to a lower end thereof, and a rotation direction of the lower oil groove 1103 from the upper end thereof to the lower end thereof is the same as a rotation direction of the crankshaft. According to the invention, the upper oil groove is set to be in a spiral groove structure form, and the rotating direction from the lower end to the upper end is the same as the rotating direction of the crankshaft, so that oil in the upper oil groove can be effectively driven to flow into the oil storage groove along with the rotation of the crankshaft. The invention can effectively utilize the rotation of the crankshaft to drive lubricating oil to move from the upper oil groove to the lower oil groove in sequence through the oil storage groove and the lower oil groove to effectively lubricate the joint surface between the upper flange and the crankshaft through the design of the upper and lower spiral oil grooves.

In some embodiments, the upper end of the upper oil groove 1101 communicates with a first location of the oil reservoir 1102, the upper end of the lower oil groove 1103 communicates with a second location of the oil reservoir 1102, and the first location and the second location are located at different locations. The upper oil groove and the lower oil groove are respectively communicated with the oil storage groove at the optimal positions, namely the upper oil groove is communicated to the first position, the lower oil groove is communicated to the second position, the upper oil groove and the lower oil groove are communicated to different positions of the oil storage groove, so that oil conveyed by the upper oil groove can be stored through the oil storage groove, the stored oil is guided out, the oil conveyed by the upper oil groove is prevented from being directly discharged from the lower oil groove without passing through the oil storage groove, and the lubricating effect between the upper flange and the crankshaft is further improved.

In some embodiments, the reservoir 1102 includes a first end and a second end in a horizontal direction, the first position is disposed near or coincident with the first end relative to the second end, and the second position is disposed near or coincident with the second end relative to the first end. The oil storage tank is a preferred structure form of the oil storage tank, the first position communicated with the oil storage tank through the upper oil tank can be the first end or the position close to the first end, the second position communicated with the oil storage tank through the lower oil tank can be the second end or the position close to the second end, and the first position is the first end and the second position is the second end, so that the length between the first position and the second position can be prolonged to the maximum extent, the oil storage length is improved, and the lubricating effect between the upper flange and the crankshaft is further improved to the maximum extent.

As shown in fig. 1-4 and examples 1-4, in some embodiments, the pump body oil path structure further includes a cylinder 12 and a lower flange 15, where the cylinder 12 is disposed between the upper flange 11 and the lower flange 15; the cylinder 12 is provided with a cylinder communicating channel, the oil return inclined hole 1109 is communicated with the cylinder communicating channel, and oil can be discharged into the oil pool through the cylinder communicating channel; or cylinder communicating channel is arranged on the cylinder 12 and lower flange communicating channel is arranged on the lower flange 15, the oil return inclined hole 1109 is communicated with the cylinder communicating channel and the lower flange communicating channel in sequence, and oil can be discharged to the oil pool through the cylinder communicating channel and the lower flange communicating channel.

According to the invention, the oil return inclined hole on the upper flange can be communicated with the cylinder communicating channel or sequentially communicated with the cylinder communicating channel and the lower flange communicating channel, so that oil can be effectively led out to the radial outer part of the cylinder or the lower flange, and the effect of effectively leading lubricating oil out to the oil pool below the upper flange is realized.

Example 1, as shown in fig. 1,1-1 and 1-2, in some embodiments, the cylinder 12 further includes a cylinder 12, a first oil return hole 1201 and a second oil return hole 1202 are disposed inside the cylinder 12, the first oil return hole 1201 extends in an axial direction of the cylinder 12, an upper end of the first oil return hole 1201 is opposite to and communicates with a lower end of the oblique oil return hole 1109, the second oil return hole 1202 extends in a radial direction of the cylinder 12, and one end of the second oil return hole 1202 communicates with a lower end of the first oil return hole 1201, and the other end communicates with a radial outside of the cylinder 12. The preferable structure form of embodiment 1 of the present invention is that the oblique oil return hole on the upper flange is communicated with the first oil return hole of the cylinder, the first oil return hole extends downward, the second oil return hole is communicated with the first oil return hole, and the second oil return hole extends in the radial direction, so that the oil is guided out of the radial direction of the cylinder through the second oil return hole, and the effect of effectively guiding the lubricating oil out of the lower portion of the upper flange is achieved.

The flow guide channel 300 according to embodiment 1 of the present invention is an L-shaped channel disposed on the cylinder, and is composed of a first oil return hole and a second oil return hole, where the first oil return hole is an axial blind hole or through hole having one end penetrating through an upper end surface of the cylinder (i.e., an end surface matching with an end surface of the upper flange), an inlet of the first oil return hole is communicated with an outlet of the oil return channel of the upper flange, the second oil return hole is a radial hole having two ends respectively communicated with the first oil return hole and an oil sump at a lower portion of the housing, and an axial position of the second oil return hole is lower than an oil level at a bottom of the housing.

FIGS. 1,1-1 and 1-2 are respectively a sectional view of a pump body assembly and an oil passage structure, a three-dimensional line drawing of an upper flange, and a schematic view of a cylinder structure according to the present invention. The drainage channel of the pump body oil return circulation flow passage is an L-shaped channel arranged on the cylinder 12 and consists of a first oil return hole 1201 and a second oil return hole 1202. One end of the first oil return hole 1201 penetrates through an axial blind hole or through hole on the upper end face of the cylinder 12 (i.e., the end face matched with the upper flange 11), the inlet of the first oil return hole is communicated with the outlet of an oil return channel of the upper flange, the second oil return hole 1202 is a radial hole with two ends respectively communicated with the first oil return hole 1201 and an oil sump 7 at the lower part of the shell, and the axial position of the radial hole is lower than the oil level at the bottom of the shell, so that the backflow lubricating oil of the pump body is drained to a position below the oil level at the lower part of the oil sump through the drainage channel, and meanwhile, the outlet of the oil return flow path is far away from the lower cavity of the motor, thereby avoiding the problems of radial vibration and high oil discharge rate caused by the fact that the lubricating oil pumped by the oil return flow path of the pump body directly and splashes to the edge surface of the flange or the wall surface of the shell, and flows to the upper cavity of the motor along with the exhaust gas, and then flows out of the compressor to enter the air conditioning system.

Pump body oil return circulation flow path: the oil pool 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the first oil return hole 1201 → the second oil return hole 1202 → the oil pool 7.

Example 2, as shown in fig. 2, in some embodiments, the cylinder 12 further includes a cylinder 12 and a lower flange 15, a first oil return hole 1201 is provided inside the cylinder 12, the first oil return hole 1201 extends in an axial direction of the cylinder 12, an upper end of the first oil return hole 1201 is opposite to and communicates with a lower end of the oil return inclined hole 1109, and the first oil return hole 1201 axially penetrates through the cylinder 12, so that the lower end of the first oil return hole 1201 extends to a lower end surface of the cylinder 12;

a third oil return hole 1501 and a fourth oil return hole 1502 are arranged inside the lower flange 15, the third oil return hole 1501 extends along the axial direction of the lower flange 15, the upper end of the third oil return hole 1501 is opposite to and communicated with the lower end of the first oil return hole 1201, the fourth oil return hole 1502 extends along the radial direction of the lower flange 15, one end of the fourth oil return hole 1502 is communicated with the lower end of the third oil return hole 1501, and the other end of the fourth oil return hole 1502 is communicated with the radial outside of the lower flange 15.

The preferable structure form of embodiment 2 of the present invention is that the oblique oil return hole on the upper flange is communicated with the first oil return hole of the cylinder, the first oil return hole extends downward and penetrates through the lower end surface, the third oil return hole on the lower flange extends along the axial direction, and the fourth oil return hole extends along the radial direction, so that the first oil return hole, the third oil return hole and the fourth oil return hole are sequentially communicated, and the oil is led out to the radial outside of the cylinder through the fourth oil return hole, thereby achieving the effect that the lubricating oil is effectively led out to the lower side of the upper flange.

The drainage channel 300 according to embodiment 2 of the present invention is an L-shaped channel formed by combining oil return holes disposed on an air cylinder and a lower flange, the air cylinder is provided with a first oil return hole of the air cylinder, the first oil return hole of the air cylinder is located in an axial hole penetrating through upper and lower end surfaces of the air cylinder, an inlet of the first oil return hole is communicated with an outlet of an oil return channel of the upper flange, the lower flange is provided with a third oil return hole and a fourth oil return hole of the lower flange, the third oil return hole is an axial blind hole having one end penetrating through an upper end surface of the lower flange (i.e., an end surface matched with the lower end surface of the air cylinder), an inlet of the third oil return hole is communicated with an outlet of the first oil return hole of the air cylinder, the fourth oil return hole is a radial hole having two ends respectively communicated with the third oil return hole of the lower flange and an oil sump at the lower portion of a housing, and an axial position of the radial hole is lower than an oil level at the bottom of the housing.

Fig. 2 is a schematic diagram of a pump body assembly and an oil passage structure in an innovative structure in embodiment 2 of the present invention.

The invention relates to a drainage channel of a pump body oil return circulation flow passage, which is an L-shaped channel formed by assembling and combining oil return holes arranged on an air cylinder 12 and a lower flange 15, wherein the air cylinder 12 is provided with an air cylinder first oil return hole 1201, the air cylinder first oil return hole 1201 is an axial hole penetrating through the upper end surface and the lower end surface of the air cylinder 12, the inlet of the air cylinder first oil return hole is communicated with the outlet of an oil return channel on an upper flange 11, the lower flange 15 is provided with a lower flange third oil return hole 1501 and a fourth oil return hole 1502, the third oil return hole 1501 is an axial blind hole, one end of the axial blind hole penetrates through the upper end surface of the lower flange 15 (namely the end surface matched with the air cylinder 12), the inlet of the axial blind hole is communicated with the outlet of the air cylinder first oil return hole 1201, the fourth oil return hole 1502 is a radial hole, the two ends of the radial hole are respectively communicated with the lower flange third oil return hole 1501 and an oil pool 7 at the lower part of a shell, and the axial position of the radial hole is lower part of the oil pool 7. The effect of this embodiment is the same as that of embodiment 1, and the outlet of the diversion channel is positioned closer to the bottom of the oil pool.

Pump body oil return circulation flow path: the oil sump 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the first oil return hole 1201 of the cylinder → the third oil return hole 1501 of the lower flange → the fourth oil return hole 1502 of the lower flange → the oil sump 7.

Example 3, as shown in fig. 3, in some embodiments, the cylinder 12 further includes a cylinder 12 and a lower flange 15, the cylinder 12 is provided with a first oil return hole 1201 inside, the first oil return hole 1201 extends in an axial direction of the cylinder 12, an upper end of the first oil return hole 1201 is opposite to and communicates with a lower end of the oil return inclined hole 1109, and the first oil return hole 1201 axially penetrates through the cylinder 12, so that the lower end of the first oil return hole 1201 extends to a lower end surface of the cylinder 12;

the lower flange 15 is provided with a third oil return hole 1501 inside, the third oil return hole 1501 extends along the axial direction of the lower flange 15, the upper end of the third oil return hole 1501 is opposite to and communicated with the lower end of the first oil return hole 1201, and the third oil return hole 1501 axially penetrates through the lower flange 15, so that the lower end of the third oil return hole 1501 extends to the lower end face of the lower flange 15, and oil is conducted to the lower side of the lower flange 15.

The preferable structure form of embodiment 3 of the present invention is that the oblique oil return hole on the upper flange is communicated with the first oil return hole of the cylinder, the first oil return hole extends downward and penetrates to the lower end surface, and the third oil return hole on the lower flange extends in the axial direction and penetrates to the lower end surface of the lower flange, so that the first oil return hole and the third oil return hole are sequentially communicated, and the oil is led out to the outside of the cylinder in the radial direction through the fourth oil return hole, thereby achieving the effect of effectively leading out the lubricating oil to the lower side of the upper flange.

The drainage channel in embodiment 3 of the present invention is formed by combining oil return holes disposed on an air cylinder and a lower flange, the air cylinder and the lower flange are respectively provided with a first oil return hole and a third oil return hole, the first oil return hole of the air cylinder is an axial hole penetrating through upper and lower end surfaces of the air cylinder, an inlet of the first oil return hole is communicated with an outlet of the oil return channel of the upper flange, the third oil return hole of the lower flange is an axial hole penetrating through upper and lower end surfaces of a lower flange, an inlet of the third oil return hole is communicated with an outlet of the first oil return hole of the air cylinder, and an outlet of the third oil return hole is directly communicated with the bottom of an oil pool.

Fig. 3 is a schematic diagram of a pump body assembly and an oil passage structure in an innovative structure according to embodiment 3 of the present invention.

The invention relates to a drainage channel of a pump body oil return circulation flow passage, which is formed by combining oil return holes arranged on an air cylinder 12 and a lower flange 15 together, wherein the air cylinder 12 and the lower flange 15 are respectively provided with a first oil return hole 1201 and a third oil return hole 1501. The first oil return hole 1201 of the cylinder is an axial hole penetrating through the upper and lower end surfaces of the cylinder, the inlet of the first oil return hole is communicated with the outlet of the oil return channel of the upper flange 11, the third oil return hole 1501 of the lower flange is an axial hole penetrating through the upper and lower end surfaces of the lower flange, the inlet of the third oil return hole is communicated with the outlet of the first oil return hole 1201 of the cylinder, and the outlet of the third oil return hole is communicated with the bottom of the oil pool 7. The effect of this embodiment is the same as embodiment 1, and its drainage channel is axial opening, and its exit position directly communicates oil sump bottom, can directly eliminate the oil return flow path to the radial liquid flow vibration noise problem that the pump oil arouses.

Pump body oil return circulation flow path: the oil pool 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the first oil return hole 1201 of the cylinder → the third oil return hole 1501 of the lower flange → the oil pool 7.

Example 4, as shown in fig. 4 and 4-1, in some embodiments, the cylinder further includes a cylinder 12, an upper end surface of the cylinder 12 is provided with a slant oil groove 1203, the slant oil groove 1203 is a slant groove extending from the upper end surface of the cylinder 12 to a radial outer circumference of the cylinder 12 by cutting, an upper end of the slant oil groove 1203 communicates with a lower end of the oil return slant hole 1109, and a lower end of the slant oil groove 1203 extends to a radial outer circumference of the cylinder 12 in a slant manner, so that oil can be guided to a radial outer portion of the cylinder 12. This is the preferred structural style of embodiment 4 of the present invention, that is, the oil return oblique hole on the upper flange is communicated with the oblique oil groove of the cylinder, and the oblique oil groove extends from the upper end surface of the cylinder to the outer circumferential surface of the cylinder in an oblique manner, so that the oil is guided out to the radial outside of the cylinder through the oblique oil groove, and the effect of effectively guiding the lubricating oil out to the lower side of the upper flange is achieved.

The drainage channel in embodiment 4 of the present invention is an inclined oil groove structure disposed on the cylinder, wherein an open end of the inclined oil groove faces an end surface of the cylinder, which is matched with the upper flange, and another open end of the inclined oil groove faces an outer circumferential surface of the cylinder, the open end of the upper end surface side of the cylinder of the inclined oil groove is communicated with an outlet of the oil return channel of the upper flange, the open end of the outer circumferential surface side of the cylinder of the inclined oil groove is communicated with an oil pool at the lower portion of the casing, and a lower side of an axial position of the inclined oil groove is lower than an oil level at the bottom of the casing.

Fig. 4 and 4-1 are a sectional view of the pump body assembly and the oil path structure, and a three-dimensional line drawing of the cylinder structure, respectively, in the inventive structure of this embodiment.

The drainage channel of the pump body oil return circulation flow channel is an inclined oil groove 1203 arranged on the cylinder 12, one open end of the inclined oil groove 1203 faces to the end face of the cylinder 12 matched with the upper flange 11, and the other open end faces to the outer circular face of the cylinder 12. The opening end of the inclined oil groove 1203 on the cylinder upper end surface side is communicated with an outlet of an upper flange oil return passage, the opening end of the inclined oil groove 1203 on the cylinder outer circle surface side is communicated with an oil pool 7 at the lower part of the shell, and the lower side of the axial position of the inclined oil groove is lower than the oil level at the bottom of the shell.

Pump body oil return circulation flow path: oil pool 7 → crankshaft center oil hole 1301 → side oil hole 1302 → upper spiral oil groove (upper oil groove 1101) → oil storage groove 1102 → upper flange oil return passage → cylinder oil groove 1203 → oil pool 7

Further, as shown in fig. 4-1, in some embodiments, an included angle between the oil return inclined hole 1109 and the horizontal direction is α, and an included angle between an extending direction from the upper end to the lower end of the inclined oil groove 1203 and the horizontal direction is β, and α is not greater than β. According to the pump body oil return circulation flow passage, the included angle between the central axis of the upper flange oil return inclined hole and the end surface of the flange plate is set to be alpha, the included angle between the inclined bottom surface of the cylinder inclined oil groove and the upper end surface of the cylinder is set to be beta, and preferably, the parameters alpha and beta meet the following conditions: α ≦ β, optimally, α = β.

The included angle between the central axis of the oil return inclined hole 1109 of the upper flange and the end surface of the flange plate is set to be alpha, the included angle between the inclined bottom surface of the inclined oil groove 1203 of the cylinder and the upper end surface of the cylinder is beta, and preferably, the parameters alpha and beta meet the following requirements: α ≦ β, optimally, α = β. Therefore, on the premise that the action and effect of the embodiment are the same as those of embodiment 1, the flow resistance loss of the lubricating oil in the oil return flow path is reduced, and due to the structural design of the inclined oil groove, the cross-sectional flow area of the inclined oil groove has the structural characteristic of gradually increasing along the backflow direction, the flow velocity of the lubricating oil at the outlet of the backflow flow path can be reduced, and the flow noise caused by liquid impact after the lubricating oil is pumped into the oil at the bottom of the pool is improved.

5-9, examples 5-9, in some embodiments, the pump body oil path structure further includes an upper cylinder 121, a partition plate 16, a lower cylinder 122, and a lower flange 15, where the upper flange 11, the upper cylinder 121, the partition plate 16, the lower cylinder 122, and the lower flange 15 are axially connected in sequence;

an upper cylinder communicating channel is arranged in the upper cylinder 121, the oil return inclined hole 1109 is communicated with the upper cylinder communicating channel, and oil can be discharged into the oil pool through the upper cylinder communicating channel;

or an upper cylinder communicating channel is arranged in the upper cylinder 121, a partition communicating channel is arranged in the partition 16, and the oil return inclined hole 1109 is sequentially communicated with the upper cylinder communicating channel and the partition communicating channel and can discharge oil to the oil pool sequentially through the upper cylinder communicating channel and the partition communicating channel;

or an upper cylinder communicating channel is arranged in the upper cylinder 121, a partition communicating channel is arranged in the partition 16, a lower cylinder communicating channel is arranged in the lower cylinder 122, the oil return inclined hole 1109 is sequentially communicated with the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel, and oil can be discharged into the oil sump through the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel in sequence;

or the inside cylinder intercommunication passageway that is provided with of last cylinder 121, the inside baffle intercommunication passageway that is provided with of baffle 16 the inside cylinder intercommunication passageway that is provided with of lower cylinder 122 and the inside flange intercommunication passageway that is provided with of lower flange 15, oil return inclined hole 1109 in proper order with last cylinder intercommunication passageway the baffle intercommunication passageway the cylinder intercommunication passageway down with lower flange intercommunication passageway intercommunication can loop through last cylinder intercommunication passageway the baffle intercommunication passageway with lower cylinder intercommunication passageway and lower flange intercommunication passageway arrange oil to in the oil bath.

According to the invention, the oil return inclined hole on the upper flange can be communicated with the upper cylinder communicating channel or sequentially communicated with the upper cylinder communicating channel and the partition plate communicating channel or sequentially communicated with the upper cylinder communicating channel, the partition plate communicating channel and the lower cylinder communicating channel or sequentially communicated with the upper cylinder communicating channel, the partition plate communicating channel and the lower flange communicating channel, or sequentially communicated with the upper cylinder communicating channel, the partition plate communicating channel, the lower cylinder communicating channel and the lower flange communicating channel, so that oil can be effectively led out to the radial outer part of the cylinder or below the lower flange, and the effect of effectively leading lubricating oil out to an oil pool below the upper flange is realized.

Example 5, as shown in fig. 5, in some embodiments, the cylinder further includes an upper cylinder 121, a partition 16, and a lower cylinder 122, where the upper cylinder 121, the partition 16, and the lower cylinder 122 are sequentially connected from top to bottom, a fifth oil return hole 12101 is provided inside the upper cylinder 121, the fifth oil return hole 12101 extends in an axial direction of the upper cylinder 121, an upper end of the fifth oil return hole 12101 is opposite to and communicated with a lower end of the oil return inclined hole 1109, and the fifth oil return hole 12101 axially penetrates through the upper cylinder 121, so that the lower end of the fifth oil return hole 12101 extends to the lower end surface of the upper cylinder 121;

a sixth oil return hole 1601 and a seventh oil return hole 1602 are arranged inside the partition 16, the sixth oil return hole 1601 extends along the axial direction of the partition 16, the upper end of the sixth oil return hole 1601 is opposite to and communicated with the lower end of the fifth oil return hole 12101, the seventh oil return hole 1602 extends along the radial direction of the partition 16, one end of the seventh oil return hole 1602 is communicated with the lower end of the sixth oil return hole 1601, and the other end of the seventh oil return hole 1602 is communicated with the radial outside of the partition 16.

The oil return inclined hole in the upper flange is communicated with a fifth oil return hole of the upper cylinder, the fifth oil return hole extends downwards and penetrates to the lower end face, a sixth oil return hole in the partition plate extends in the axial direction, and a seventh oil return hole extends in the radial direction, so that the fifth oil return hole, the sixth oil return hole and the seventh oil return hole are sequentially communicated, oil is guided out of the radial outer portion of the cylinder through the seventh oil return hole, and the effect that lubricating oil is effectively guided out of an oil pool below the upper flange is achieved.

The double-cylinder compressor pump body assembly of embodiment 5 of the present invention includes an upper flange, an upper cylinder, a lower cylinder, a crankshaft, an upper roller, a lower roller, a partition plate, and a lower flange, and has the pump body oil return circulation flow passage as described above, wherein the drainage channel is an "L" shaped channel formed by combining oil return holes provided on the upper cylinder and the partition plate, the upper cylinder is provided with an upper cylinder fifth oil return hole, which is an axial hole penetrating through upper and lower end surfaces of the upper cylinder, an inlet of the upper cylinder is communicated with an outlet of the upper flange oil return channel, the partition plate is provided with a partition plate sixth oil return hole and a seventh oil return hole, the sixth oil return hole is an axial blind hole having one end penetrating through an upper end surface of the partition plate (i.e., an end surface matched with a lower end surface of the upper cylinder), an inlet of the sixth oil return hole is communicated with an outlet of the upper cylinder fifth oil return hole, and the seventh oil return hole is a radial hole having two ends respectively communicated with the partition plate sixth oil return hole and an oil pool at a lower portion of the housing, and an axial position of the seventh oil return hole is lower portion of the housing bottom oil level.

The double-cylinder compressor pump body assembly in embodiment 5 of the present invention includes an upper flange 11, an upper cylinder 121/a lower cylinder 122, a crankshaft 13, an upper roller 141/a lower roller 142, a partition 16, and a lower flange 15, and has the pump body oil return circulation flow channel in the structure of the present invention, and the drainage channel is an "L" shaped channel formed by combining oil return holes disposed on the upper cylinder 121 and the partition 16. The upper cylinder 121 is provided with an upper cylinder fifth oil return hole 12101, which is an axial hole penetrating through the upper and lower end faces of the upper cylinder 121, and an inlet of the upper cylinder fifth oil return hole is communicated with an outlet of the upper flange oil return passage. A sixth oil return hole 1601 and a seventh oil return hole 1602 of the partition are arranged on the partition 16, the sixth oil return hole 1601 is an axial blind hole with one end penetrating through the upper end face (i.e. the end face matched with the upper cylinder) of the partition 16, the inlet of the sixth oil return hole is communicated with the outlet of the fifth oil return hole 12101 of the upper cylinder, the seventh oil return hole 1602 is a radial hole with two ends respectively communicated with the sixth oil return hole 1601 of the partition and the oil sump 7 at the lower part of the casing, and the axial position of the radial hole is lower than the oil level at the bottom of the casing.

Pump body oil return circulation flow path: the oil sump 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the fifth oil return hole 12101 of the upper cylinder → the sixth oil return hole 1601 of the partition → the seventh oil return hole 1602 of the partition → the oil sump 7.

Example 6, as shown in fig. 6, in some embodiments, the cylinder further includes an upper cylinder 121, a partition 16, and a lower cylinder 122, where the upper cylinder 121, the partition 16, and the lower cylinder 122 are sequentially connected from top to bottom, a fifth oil return hole 12101 is provided inside the upper cylinder 121, the fifth oil return hole 12101 extends in an axial direction of the upper cylinder 121, an upper end of the fifth oil return hole 12101 is opposite to and communicated with a lower end of the oil return inclined hole 1109, and the fifth oil return hole 12101 axially penetrates through the upper cylinder 121, so that the lower end of the fifth oil return hole 12101 extends to the lower end surface of the upper cylinder 121;

a sixth oil return hole 1601 is arranged inside the partition 16, the sixth oil return hole 1601 extends along the axial direction of the partition 16, the upper end of the sixth oil return hole 1601 is opposite to and communicated with the lower end of the fifth oil return hole 12101, and the sixth oil return hole 1601 axially penetrates through the partition 16, so that the lower end of the sixth oil return hole 1601 extends to the lower end face of the partition 16;

the inside of lower cylinder 122 is provided with eighth oil gallery 12201 and ninth oil gallery 12202, eighth oil gallery 12201 is followed the axial extension of lower cylinder 122 and the upper end of eighth oil gallery 12201 is relative and the intercommunication with the lower extreme of sixth oil gallery 1601, ninth oil gallery 12202 is followed the radial direction of lower cylinder 122 extends, just the one end of ninth oil gallery 12202 with the lower extreme intercommunication of eighth oil gallery 12201, the other end communicates to the radial outside of lower cylinder 122.

The preferable structure form of embodiment 6 of the present invention is that an oblique oil return hole on the upper flange is communicated with a fifth oil return hole of the upper cylinder, the fifth oil return hole extends downward and penetrates to the lower end surface, a sixth oil return hole on the partition plate extends in the axial direction and penetrates to the lower end surface of the partition plate, an eighth oil return hole on the lower cylinder extends in the axial direction, and a ninth oil return hole extends in the radial direction, so that the fifth oil return hole, the sixth oil return hole, the eighth oil return hole and the ninth oil return hole are sequentially communicated, and therefore, oil is led out to the radial outside of the cylinder through the ninth oil return hole, and an effect of effectively leading out lubricating oil to the lower side of the upper flange is achieved.

The pump body assembly of the double-cylinder compressor in embodiment 6 of the present invention includes an upper flange, an upper cylinder, a lower cylinder, a crankshaft, an upper roller, a lower roller, a partition plate, and a lower flange, and has the pump body oil return circulation flow passage as described above, where a flow guide channel is an "L" shaped channel formed by combining oil return holes disposed on the upper cylinder, the partition plate, and the lower cylinder, the upper cylinder and the partition plate are respectively provided with a fifth oil return hole of the upper cylinder and a sixth oil return hole of the partition plate, the fifth oil return hole of the upper cylinder and the sixth oil return hole of the partition plate are communicated end to end and are axial holes respectively penetrating through upper end surfaces and lower end surfaces of the upper cylinder and the partition plate, an inlet of the fifth oil return hole of the upper cylinder is communicated with an outlet of the upper flange oil return channel, the lower cylinder is provided with an eighth oil return hole and a ninth oil return hole, the eighth oil return hole is an axial blind hole having one end penetrating through an upper end surface of the lower cylinder (i.e. an end surface matched with a lower end surface of the partition plate), an inlet of the partition plate is communicated with an outlet of the sixth oil return hole of the partition plate, and a ninth oil return hole having two ends respectively communicated with an axial position lower oil level of a lower oil tank of the lower cylinder.

The pump body assembly of the double-cylinder compressor in embodiment 6 of the present invention includes an upper flange 11, an upper cylinder 121/a lower cylinder 122, a crankshaft 13, an upper roller 141/a lower roller 142, a partition 16 and a lower flange 15, and has an oil return circulation flow channel of the pump body according to the structure of the present invention, in which a drainage channel is an "L" shaped channel formed by combining oil return holes disposed on the upper cylinder 121, the partition 16 and the lower cylinder 122, the upper cylinder 121 and the partition 16 are respectively provided with an upper cylinder fifth oil return hole 12101 and a partition sixth oil return hole 1601, the upper cylinder fifth oil return hole 12101 and the partition sixth oil return hole 1601 are communicated end to end and are axial holes respectively penetrating through upper and lower end surfaces of the upper cylinder 121 and the partition 16, and an inlet of the upper cylinder fifth oil return hole 12101 is communicated with an outlet of the oil return channel of the upper flange. Be provided with the eighth oil gallery 12201 and the ninth oil gallery 12202 of lower cylinder on the lower cylinder, eighth oil gallery 12201 is the axial blind hole that one end runs through the up end of lower cylinder 122 (promptly with baffle complex terminal surface), its entry communicates with the export of the sixth oil gallery 1601 of baffle, ninth oil gallery 12202 is the radial hole of the eighth oil gallery 12201 and the casing lower part oil bath 7 of both ends intercommunication lower cylinder respectively, its axial position is less than casing bottom oil level.

Pump body oil return circulation flow path: the oil sump 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the fifth oil return hole 12101 of the upper cylinder → the sixth oil return hole 1601 of the partition → the eighth oil return hole 12201 of the lower cylinder → the ninth oil return hole 12202 of the lower cylinder → the oil sump 7.

Example 7, as shown in fig. 7, in some embodiments, the cylinder further includes an upper cylinder 121, a partition 16, a lower cylinder 122, and a lower flange 15, where the upper cylinder 121, the partition 16, the lower cylinder 122, and the lower flange 15 are sequentially connected from top to bottom, a fifth oil return hole 12101 is provided inside the upper cylinder 121, the fifth oil return hole 12101 extends in an axial direction of the upper cylinder 121, an upper end of the fifth oil return hole 12101 is opposite to and communicated with a lower end of the oil return inclined hole 1109, and the fifth oil return hole 12101 axially penetrates through the upper cylinder 121, so that the lower end of the fifth oil return hole 12101 extends to a lower end surface of the upper cylinder 121;

a sixth oil return hole 1601 is arranged inside the partition 16, the sixth oil return hole 1601 extends along the axial direction of the partition 16, the upper end of the sixth oil return hole 1601 is opposite to and communicated with the lower end of the fifth oil return hole 12101, and the sixth oil return hole 1601 axially penetrates through the partition 16, so that the lower end of the sixth oil return hole 1601 extends to the lower end face of the partition 16;

an eighth oil return hole 12201 is formed in the lower cylinder 122, the eighth oil return hole 12201 extends in the axial direction of the lower cylinder 122, the upper end of the eighth oil return hole 12201 is opposite to and communicated with the lower end of the sixth oil return hole 1601, and the eighth oil return hole 12201 axially penetrates through the lower cylinder 122, so that the lower end of the eighth oil return hole 12201 extends to the lower end face of the lower cylinder 122;

the inner portion of the lower flange 15 is provided with a third oil return hole 1501 and a fourth oil return hole 1502, the third oil return hole 1501 extends along the axial direction of the lower flange 15, the upper end of the third oil return hole 1501 is opposite to and communicated with the lower end of the eighth oil return hole 12201, the fourth oil return hole 1502 extends along the radial direction of the lower flange 15, one end of the fourth oil return hole 1502 is communicated with the lower end of the third oil return hole 1501, and the other end of the fourth oil return hole 1502 is communicated with the radial outer portion of the lower flange 15.

The preferable structure form of embodiment 7 of the present invention is that an oblique oil return hole on the upper flange is communicated with a fifth oil return hole of the upper cylinder, the fifth oil return hole extends downward and penetrates to the lower end surface, a sixth oil return hole on the partition plate extends in the axial direction and penetrates to the lower end surface of the partition plate, an eighth oil return hole on the lower cylinder extends in the axial direction and penetrates through the lower end surface of the lower cylinder, a third oil return hole on the lower flange extends in the axial direction, and a fourth oil return hole extends in the radial direction, so that the fifth oil return hole, the sixth oil return hole, the eighth oil return hole, the third oil return hole and the fourth oil return hole are sequentially communicated, and therefore, oil is led out to the radial outside of the cylinder through the fourth oil return hole, and an effect that lubricating oil is effectively led out to the lower side of the upper flange is achieved.

The double-cylinder compressor pump body assembly according to embodiment 7 of the present invention includes an upper flange, an upper cylinder, a lower cylinder, a crankshaft, an upper roller, a lower roller, a partition plate, and a lower flange, and has the pump body oil return circulation flow passage as described above, where a flow guide passage is an "L" shaped passage formed by combining oil return holes provided on the upper cylinder, the partition plate, the lower cylinder, and the lower flange, the upper cylinder, the partition plate, and the lower cylinder are respectively provided with an upper first oil return hole, the fifth oil return hole, the sixth oil return hole, and the eighth oil return hole on the upper cylinder, the partition plate, and the lower cylinder are communicated end to end, and are axial blind holes respectively penetrating through upper end faces (i.e., end faces matched with lower end faces of the lower cylinder) of the upper cylinder, the fifth oil return hole is communicated with an outlet of the upper flange oil return hole, the lower flange is provided with a third oil return hole and a fourth oil return hole, the third oil return hole is communicated with a lower flange, and the axial blind hole is lower oil level of the lower housing.

The pump body oil return circulation flow channel of embodiment 7 of the present invention includes a pump body oil return circulation flow channel having a structure of the present invention, where a drainage channel of the pump body oil return circulation flow channel is an "L" -shaped channel formed by combining oil return holes disposed on the upper cylinder 121, the partition 16, the lower cylinder 122, and the lower flange 15, the upper cylinder 121, the partition 16, and the lower cylinder 122 are respectively provided with an upper fifth oil return hole 12101, a sixth oil return hole 1601, and an eighth oil return hole 12201, the oil return holes on the upper cylinder 121, the partition 16, and the lower cylinder 122 are communicated end to end, and are axial holes penetrating through upper and lower end faces of the upper cylinder 121, the partition 16, and the lower cylinder 122, and an inlet of the fifth oil return hole 12101 of the upper cylinder is communicated with an outlet of the upper flange oil return channel. The lower flange 15 is provided with a third oil return hole 1501 and a fourth oil return hole 1502 of the lower flange, the third oil return hole 1501 is an axial blind hole with one end penetrating through the upper end face (namely the end face matched with the lower cylinder) of the lower flange 15, the inlet of the third oil return hole 1501 is communicated with the outlet of an eighth oil return hole 12201 of the lower cylinder, the fourth oil return hole 1502 is a radial hole with two ends respectively communicated with the third oil return hole 1501 of the lower flange and the oil sump 7 at the lower part of the shell, and the axial position of the fourth oil return hole is lower than the oil level at the bottom of the shell.

Pump body oil return circulation flow path: the oil sump 7 → the central oil hole 1301 of the crankshaft → the side oil hole 1302 → the upper spiral oil groove (the upper oil groove 1101) → the oil storage groove 1102 → the upper flange oil return passage → the fifth oil return hole 12101 of the upper cylinder → the sixth oil return hole 1601 of the partition plate → the eighth oil return hole 12201 of the lower cylinder → the third oil return hole 1501 of the lower flange → the fourth oil return hole 1502 of the lower flange → the oil sump 7.

Example 8, as shown in fig. 8,8-1, in some embodiments, the second oil return hole 1202 has a gradually increasing cross-sectional flow area in a radially outward direction. According to the pump body oil return circulation flow passage, the cross-sectional flow area of the oil return hole close to the outlet of the drainage passage is gradually increased along the backflow direction, so that the flow speed of lubricating oil at the outlet is reduced, the flow noise caused by liquid impact after the lubricating oil is pumped into oil at the bottom of the pool is improved, the flow resistance loss is reduced, and the energy efficiency is improved.

Preferably, in the pump body oil return circulation flow channel with the innovative structure, the cross-sectional flow area of the second oil return hole 1202 of the drainage channel close to the outlet is gradually increased along the backflow direction, so that the flow velocity of the lubricating oil at the outlet is reduced, the flow noise caused by liquid impact after the lubricating oil is pumped into the oil at the bottom of the pool is improved, the flow resistance loss is reduced, and the energy efficiency is improved.

Example 9, as shown in fig. 9,9-1, in some embodiments, an avoiding groove 1603 is cut at an outlet end of the seventh oil return hole 1602 on the partition 16, a radially inner end of the avoiding groove 1603 is communicated with the outlet end of the seventh oil return hole 1602, and a flow cross-sectional area of the avoiding groove 1603 is gradually increased along a fluid flowing direction. The pump body oil return circulation flow passage comprises a drainage channel, wherein the drainage channel comprises a first oil return hole, a second oil return hole and an avoiding groove, the avoiding groove is arranged at the outlet end of the second oil return hole and is concave towards the direction of the central axis of the pump body, and the cross-sectional oblique area of the concave avoiding groove is larger than the cross-sectional flow area of the outlet of the drainage channel, so that the outlet of the drainage channel is far away from the inner wall of the shell, and the flow velocity of the outlet is reduced. According to the pump body oil return circulation flow passage with the innovative structure, the drainage channel comprises a fifth oil return hole 12101, a sixth oil return hole 1601, a seventh oil return hole 1602 and an avoiding groove 1603. The avoiding groove 1603 is arranged at the outlet end of the seventh oil return hole 1602 and is recessed towards the direction of the central axis of the pump body, and the cross-sectional oblique area of the recessed avoiding groove 1603, which is perpendicular to the flow direction, is larger than the cross-sectional flow area of the outlet of the seventh oil return hole 1602 of the drainage channel, so that the outlet of the drainage channel is far away from the inner wall of the shell, and the flow rate of the outlet is reduced.

The invention also provides a pump body which comprises the oil circuit structure of the pump body and a crankshaft 13, wherein the crankshaft 13 penetrates into the shaft hole of the upper flange 11. Alternatively, the second oil return hole of the drainage channel can be arranged on other cylinders and partition plates except the pump body parts of the single-cylinder and double-cylinder pump body assembly.

In some embodiments, a central oil hole 1301 and a side oil hole 1302 are provided inside the crankshaft 13, the central oil hole 1301 extends in the axial direction of the crankshaft 13, the side oil hole 1302 extends in the radial direction of the crankshaft 13, one end of the side oil hole 1302 communicates with the central oil hole 1301, the other end extends to communicate with the radially outer side of the crankshaft 13, and the side oil hole 1302 is opposite to the inner wall of the upper flange 11 so as to be able to deliver oil into the upper oil groove 1101.

The invention also provides a compressor, which comprises the pump body.

The compressor is provided with the pump body component with the structural characteristics, and can be a single-cylinder, double-cylinder and multi-cylinder rotor compressor, and can also be a rotary cylinder compressor, a sliding vane compressor, a scroll compressor and the like.

The invention also protects an air conditioner and a compressor with the structural characteristics.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (22)

1. The utility model provides a pump body oil circuit structure which characterized in that: the method comprises the following steps:

go up flange (11), be provided with on the shaft hole inner wall of upper flange oil groove (1101), oil storage tank (1102) and lower oil groove (1103), the lower extreme of going up oil groove (1101) can be used for inhaleing oil, go up oil groove (1101) upwards extend to its upper end with oil storage tank (1102) intercommunication, oil storage tank (1102) are in along the horizontal direction extend on the inner wall of upper flange (11), the upper end of lower oil groove (1103) with oil storage tank (1102) intercommunication, in order to follow inhale oil in oil storage tank (1102), oil groove (1103) downwardly extending down, the inside of upper flange (11) still is provided with oil return inclined hole (1109), oil return inclined hole (1109) slope downwardly extending, just the upper end of oil return inclined hole (1109) with the lower extreme intercommunication of lower oil groove (1103), the lower extreme of oil return inclined hole (1109) extends to the lower terminal surface of upper flange (11) is in order to can lead out oil to in the oil pool of the below of upper flange (11).

2. The pump body oil passage structure according to claim 1, characterized in that:

the oil return inclined hole (1109) is a straight hole, and is all the slope setting with horizontal direction and vertical direction, the extending direction of oil return inclined hole (1109) with the axial of last flange (11) presss from both sides the contained angle between establishing (0,90 °), just the extending direction of oil return inclined hole (1109) presss from both sides the contained angle between establishing (0,90 °) with the horizontal direction, the axial of going up flange (11) is along vertical direction, the axial terminal surface of going up flange (11) is along the horizontal direction.

3. The pump body oil passage structure according to claim 1, characterized in that:

the oil return device is characterized in that an annular flexible groove (1106) is further formed in the upper flange (11), the annular flexible groove (1106) is located on the periphery of the inner wall of the shaft hole and is spaced at a preset distance from the inner wall of the shaft hole, and the joint end of the oil return inclined hole (1109) and the lower oil groove (1103) is located above the upper end of the annular flexible groove (1106).

4. The pump body oil passage structure according to any one of claims 1 to 3, characterized in that:

the upper oil groove (1101) is of a spiral oil groove structure formed in the inner wall of the upper flange (11), the upper oil groove (1101) extends upwards spirally from the lower end to the upper end of the upper oil groove, the rotating direction of the upper oil groove (1101) from the lower end to the upper end of the upper oil groove is the same as that of a crankshaft, and the upper flange is sleeved on the periphery of the crankshaft; the lower oil groove (1103) is a spiral oil groove structure formed in the inner wall of the upper flange (11), the lower oil groove (1103) extends downwards in a spiral manner from the upper end to the lower end of the lower oil groove, and the rotating direction of the lower oil groove (1103) from the upper end to the lower end of the lower oil groove is the same as that of the crankshaft.

5. The pump body oil passage structure according to any one of claims 1 to 4, characterized in that:

the upper end of the upper oil groove (1101) is communicated with a first position of the oil storage groove (1102), the upper end of the lower oil groove (1103) is communicated with a second position of the oil storage groove (1102), and the first position and the second position are located at different positions.

6. The pump body oil passage structure according to claim 5, characterized in that:

the oil reservoir (1102) includes a first end and a second end along a horizontal direction, the first position is disposed adjacent to or coincident with the first end relative to the second end, and the second position is disposed adjacent to or coincident with the second end relative to the first end.

7. The pump body oil passage structure according to claim 1, characterized in that:

the pump body oil circuit structure further comprises an air cylinder (12) and a lower flange (15), wherein the air cylinder (12) is arranged between the upper flange (11) and the lower flange (15); an air cylinder communicating channel is formed in the air cylinder (12), the oil return inclined hole (1109) is communicated with the air cylinder communicating channel, and oil can be discharged into the oil pool through the air cylinder communicating channel; or be provided with cylinder intercommunication passageway on cylinder (12) and be provided with lower flange intercommunication passageway on lower flange (15), oil return inclined hole (1109) in proper order with cylinder intercommunication passageway with lower flange intercommunication passageway intercommunication, can pass through cylinder intercommunication passageway with lower flange intercommunication passageway is extremely with oil drain in the oil bath.

8. The pump body oil passage structure according to claim 7, characterized in that:

the cylinder communication channel comprises a first oil return hole (1201) and a second oil return hole (1202) which are arranged inside the cylinder, the first oil return hole (1201) extends along the axial direction of the cylinder (12), the upper end of the first oil return hole (1201) is opposite to and communicated with the lower end of the oil return inclined hole (1109), the second oil return hole (1202) extends along the radial direction of the cylinder (12), one end of the second oil return hole (1202) is communicated with the lower end of the first oil return hole (1201), and the other end of the second oil return hole is communicated with the radial outside of the cylinder (12).

9. The pump body oil passage structure according to claim 8, characterized in that:

the flow cross-sectional area of the second oil return hole (1202) is gradually increased along the radial outward direction.

10. The pump body oil passage structure according to claim 7, characterized in that:

the cylinder communication channel comprises a first oil return hole (1201) arranged in the cylinder, the first oil return hole (1201) extends along the axial direction of the cylinder (12), the upper end of the first oil return hole (1201) is opposite to and communicated with the lower end of the oil return inclined hole (1109), and the first oil return hole (1201) penetrates through the cylinder (12) along the axial direction, so that the lower end of the first oil return hole (1201) extends to the lower end surface of the cylinder (12);

the lower flange communication channel comprises a third oil return hole (1501) and a fourth oil return hole (1502) which are arranged inside the lower flange, the third oil return hole (1501) extends along the axial direction of the lower flange (15), the upper end of the third oil return hole (1501) is opposite to and communicated with the lower end of the first oil return hole (1201), the fourth oil return hole (1502) extends along the radial direction of the lower flange (15), one end of the fourth oil return hole (1502) is communicated with the lower end of the third oil return hole (1501), and the other end of the fourth oil return hole is communicated with the radial outside of the lower flange (15).

11. The pump body oil passage structure according to claim 7, characterized in that:

the cylinder communication channel comprises a first oil return hole (1201) arranged in the cylinder, the first oil return hole (1201) extends along the axial direction of the cylinder (12), the upper end of the first oil return hole (1201) is opposite to and communicated with the lower end of the oil return inclined hole (1109), and the first oil return hole (1201) penetrates through the cylinder (12) along the axial direction, so that the lower end of the first oil return hole (1201) extends to the lower end surface of the cylinder (12);

the lower flange communication channel comprises a third oil return hole (1501) arranged inside the lower flange, the third oil return hole (1501) extends along the axial direction of the lower flange (15), the upper end of the third oil return hole (1501) is opposite to and communicated with the lower end of the first oil return hole (1201), and the third oil return hole (1501) axially penetrates through the lower flange (15) so that the lower end of the third oil return hole (1501) extends to the lower end face of the lower flange (15) to conduct oil below the lower flange (15).

12. The pump body oil passage structure according to claim 7, characterized in that:

the cylinder intercommunication passageway including set up in oblique oil groove (1203) of the up end of cylinder (12), oblique oil groove (1203) are for following the up end of cylinder (12) extends to through the cutting the chute of the radial outer circumference of cylinder (12), the upper end of oblique oil groove (1203) with the lower extreme intercommunication of oil return inclined hole (1109), the lower extreme slope of oblique oil groove (1203 extends to the radial periphery of cylinder (12) to can lead to oil the radial outside of cylinder (12).

13. The pump body oil passage structure according to claim 12, wherein:

the included angle between the oil return inclined hole (1109) and the horizontal direction is alpha, the included angle between the extending direction from the upper end to the lower end of the inclined oil groove (1203) and the horizontal direction is beta, and alpha is not more than beta.

14. The pump body oil passage structure according to claim 1, characterized in that:

the pump body oil circuit structure further comprises an upper air cylinder (121), a partition plate (16), a lower air cylinder (122) and a lower flange (15), wherein the upper flange (11), the upper air cylinder (121), the partition plate (16), the lower air cylinder (122) and the lower flange (15) are sequentially connected in the axial direction;

an upper cylinder communicating channel is arranged in the upper cylinder (121), the oil return inclined hole (1109) is communicated with the upper cylinder communicating channel, and oil can be discharged into the oil pool through the upper cylinder communicating channel;

or an upper cylinder communicating channel is arranged in the upper cylinder (121), a partition plate communicating channel is arranged in the partition plate (16), the oil return inclined hole (1109) is communicated with the upper cylinder communicating channel and the partition plate communicating channel in sequence, and oil can be discharged into the oil pool through the upper cylinder communicating channel and the partition plate communicating channel in sequence;

or an upper cylinder communicating channel is arranged in the upper cylinder (121), a partition communicating channel is arranged in the partition (16), a lower cylinder communicating channel is arranged in the lower cylinder (122), the oil return inclined hole (1109) is sequentially communicated with the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel, and oil can be discharged into the oil tank through the upper cylinder communicating channel, the partition communicating channel and the lower cylinder communicating channel in sequence;

or go up cylinder (121) inside be provided with cylinder intercommunication passageway, baffle (16) inside be provided with baffle intercommunication passageway, cylinder intercommunication passageway and flange intercommunication passageway down are provided with down to lower cylinder (122) inside, oil return inclined hole (1109) in proper order with go up cylinder intercommunication passageway baffle intercommunication passageway down cylinder intercommunication passageway with flange intercommunication passageway intercommunication down can loop through go up cylinder intercommunication passageway baffle intercommunication passageway with lower cylinder intercommunication passageway with lower flange intercommunication passageway intercommunication can loop through down cylinder intercommunication passageway with cylinder intercommunication passageway and lower flange intercommunication passageway arrange oil extremely in the oil bath.

15. The pump body oil passage structure according to claim 14, wherein:

the upper cylinder communication channel comprises a fifth oil return hole (12101) arranged inside the upper cylinder (121), the fifth oil return hole (12101) extends along the axial direction of the upper cylinder (121), the upper end of the fifth oil return hole (12101) is opposite to and communicated with the lower end of the oil return inclined hole (1109), and the fifth oil return hole (12101) axially penetrates through the upper cylinder (121), so that the lower end of the fifth oil return hole (12101) extends to the lower end face of the upper cylinder (121);

the baffle intercommunication passageway including set up in the inside sixth oil gallery (1601) and seventh oil gallery (1602) of baffle (16), sixth oil gallery (1601) are followed the axial extension of baffle (16) just the upper end of sixth oil gallery (1601) with the lower extreme of fifth oil gallery (12101) is relative and the intercommunication, seventh oil gallery (1602) are followed the radial direction of baffle (16) extends, just the one end of seventh oil gallery (1602) with the lower extreme intercommunication of sixth oil gallery (1601), the other end intercommunication to the radial outside of baffle (16).

16. The pump body oil passage structure according to claim 15, characterized in that:

an avoiding groove (1603) is formed in the partition plate (16) and located at the outlet end of the seventh oil return hole (1602) in a cutting mode, the radial inner end of the avoiding groove (1603) is communicated with the outlet end of the seventh oil return hole (1602), and the flow cross-sectional area of the avoiding groove (1603) is gradually increased along the flowing direction of fluid.

17. The pump body oil passage structure according to claim 14, wherein:

the upper cylinder communication channel comprises a fifth oil return hole (12101) arranged inside the upper cylinder (121), the fifth oil return hole (12101) extends along the axial direction of the upper cylinder (121), the upper end of the fifth oil return hole (12101) is opposite to and communicated with the lower end of the oil return inclined hole (1109), and the fifth oil return hole (12101) axially penetrates through the upper cylinder (121), so that the lower end of the fifth oil return hole (12101) extends to the lower end face of the upper cylinder (121);

the partition communicating channel comprises a sixth oil return hole (1601) arranged inside the partition (16), the sixth oil return hole (1601) extends along the axial direction of the partition (16), the upper end of the sixth oil return hole (1601) is opposite to and communicated with the lower end of the fifth oil return hole (12101), and the sixth oil return hole (1601) axially penetrates through the partition (16) so that the lower end of the sixth oil return hole (1601) extends to the lower end face of the partition (16);

the lower cylinder communication channel comprises an eighth oil return hole (12201) and a ninth oil return hole (12202) which are arranged inside the lower cylinder (122), the eighth oil return hole (12201) extends along the axial direction of the lower cylinder (122), the upper end of the eighth oil return hole (12201) is opposite to and communicated with the lower end of the sixth oil return hole (1601), the ninth oil return hole (12202) extends along the radial direction of the lower cylinder (122), one end of the ninth oil return hole (12202) is communicated with the lower end of the eighth oil return hole (12201), and the other end of the ninth oil return hole is communicated with the radial outside of the lower cylinder (122).

18. The pump body oil passage structure according to claim 14, wherein:

the upper cylinder communication channel comprises a fifth oil return hole (12101) arranged inside the upper cylinder (121), the fifth oil return hole (12101) extends along the axial direction of the upper cylinder (121), the upper end of the fifth oil return hole (12101) is opposite to and communicated with the lower end of the oil return inclined hole (1109), and the fifth oil return hole (12101) axially penetrates through the upper cylinder (121), so that the lower end of the fifth oil return hole (12101) extends to the lower end face of the upper cylinder (121);

the partition communicating channel comprises a sixth oil return hole (1601) arranged inside the partition (16), the sixth oil return hole (1601) extends along the axial direction of the partition (16), the upper end of the sixth oil return hole (1601) is opposite to and communicated with the lower end of the fifth oil return hole (12101), and the sixth oil return hole (1601) axially penetrates through the partition (16) so that the lower end of the sixth oil return hole (1601) extends to the lower end face of the partition (16);

the lower cylinder communication channel comprises an eighth oil return hole (12201) arranged inside the lower cylinder (122), the eighth oil return hole (12201) extends along the axial direction of the lower cylinder (122), the upper end of the eighth oil return hole (12201) is opposite to and communicated with the lower end of the sixth oil return hole (1601), and the eighth oil return hole (12201) axially penetrates through the lower cylinder (122) so that the lower end of the eighth oil return hole (12201) extends to the lower end face of the lower cylinder (122);

the lower flange communication channel comprises a third oil return hole (1501) and a fourth oil return hole (1502) which are arranged inside the lower flange (15), the third oil return hole (1501) extends along the axial direction of the lower flange (15), the upper end of the third oil return hole (1501) is opposite to and communicated with the lower end of the eighth oil return hole (12201), the fourth oil return hole (1502) extends along the radial direction of the lower flange (15), one end of the fourth oil return hole (1502) is communicated with the lower end of the third oil return hole (1501), and the other end of the fourth oil return hole is communicated with the radial outside of the lower flange (15).

19. A pump body, characterized by: the pump body oil circuit structure according to any one of claims 1 to 18, further comprising a crankshaft (13), the crankshaft (13) being inserted into a shaft hole of the upper flange (11).

20. The pump body according to claim 19, characterized in that:

the crankshaft (13) is internally provided with a central oil hole (1301) and a side oil hole (1302), the central oil hole (1301) extends along the axial direction of the crankshaft (13), the side oil hole (1302) extends along the radial direction of the crankshaft (13), one end of the side oil hole (1302) is communicated with the central oil hole (1301), the other end of the side oil hole extends to be communicated with the radial outer side of the crankshaft (13), and the side oil hole (1302) is opposite to the inner wall of the upper flange (11) so as to convey oil into the upper oil groove (1101).

21. A compressor, characterized by: comprising a pump body according to claim 19 or 20.

22. An air conditioner, characterized in that: comprising the compressor of claim 21.

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