CN112576513B

CN112576513B - Compressor and air conditioner

Info

Publication number: CN112576513B
Application number: CN202011407040.XA
Authority: CN
Inventors: 徐嘉; 单彩侠; 龙孝天; 方琪
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Zhuhai Landa Compressor Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-09-16
Anticipated expiration: 2040-12-03
Also published as: CN112576513A

Abstract

The invention provides a compressor and an air conditioner, wherein the compressor comprises a fixed scroll, a movable scroll and a sealing cover, the sealing cover is arranged at one end, which is far away from the movable scroll, of the fixed scroll in the axial direction, a silencing cavity is formed between the sealing cover and the fixed scroll, and an exhaust hole is formed in the fixed scroll and communicated with the silencing cavity; an annular exhaust passage is formed between an inner peripheral wall of the seal cover and an outer peripheral wall of the fixed scroll, and the muffling chamber is capable of communicating with the exhaust passage so that fluid coming out of the muffling chamber enters the exhaust passage. According to the invention, the gas in the silencing cavity can be guided into the exhaust passage, the flow path of the gas is effectively increased, the silencing and vibration damping effects are increased, and the effect of reducing noise is achieved by restricting the exhaust direction of the high-pressure gas.

Description

Compressor and air conditioner

Technical Field

The disclosure relates to the technical field of compressors, in particular to a compressor and an air conditioner.

Background

The scroll compressor has the advantages of simple structure, small volume, light weight, low noise, high mechanical efficiency, stable operation and the like. However, because the exhaust of the scroll compressor directly faces the upper cover, and the exhaust flow rate is high, which can increase the noise of the compressor, the prior proposal generally adopts a silencer to guide the exhaust to the shell for emission, although the noise can be reduced, the shell can resonate, and the high-pressure gas discharged by the compressor can generate the pneumatic noise in the cavity by turbulent flow. The structure of the comparison document lacks a subsequent treatment method for the separated refrigeration oil, and meanwhile, the exhaust circulation space is small, and the exhaust of the compressor cannot be decelerated well.

Because the compressor carries liquid problem, can produce the oil sump after the installation muffler between static vortex dish and the muffler, the high-pressure gas of following the static vortex dish exhaust can lead to oil in the cavity turbulent flow, strikes the lateral wall and produces the noise.

The scroll compressor in the prior art has the defects that high-pressure gas of the compressor directly impacts a shell to generate larger noise; the high-pressure refrigerant carries a large amount of refrigeration oil, so that the performance of the compressor is reduced; the technical problems that oil is accumulated near the exhaust hole of the compressor pump body, and the exhaust causes turbulent flow to generate noise and the like are solved, so that the compressor and the air conditioner are researched and designed in the disclosure.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

Therefore, the technical problem to be solved by the present disclosure is to overcome the defect of the prior art that the high-pressure gas of the scroll compressor directly impacts the housing to generate large noise, thereby providing a compressor and an air conditioner.

In order to solve the above problem, the present disclosure provides a compressor, including:

the sealing cover is arranged at one end, deviating from the axial direction of the movable scroll, of the fixed scroll in a covering mode, a silencing cavity is formed between the sealing cover and the fixed scroll, and an exhaust hole is formed in the fixed scroll and communicated with the silencing cavity; an annular exhaust passage is formed between an inner peripheral wall of the seal cover and an outer peripheral wall of the fixed scroll, and the muffling chamber is capable of communicating with the exhaust passage so that fluid coming out of the muffling chamber enters the exhaust passage.

In some embodiments, at least one fin is disposed in the exhaust passage to enhance turbulence of fluid entering the exhaust passage; and/or the exhaust passage is a groove structure which is arranged on the inner peripheral wall of the sealing cover and is opened towards the direction of the outer peripheral wall of the sealing cover.

In some embodiments, when at least one fin is provided in the exhaust passage, the fin includes a first fin provided on an inner peripheral wall of the seal cover and provided to protrude in a direction of the fixed scroll, and a second fin provided on an outer peripheral wall of the fixed scroll and provided to protrude in a direction of the seal cover, the first fin and the second fin being alternately arranged in a flow direction of the air flow.

In some embodiments, the free end of the first fin is spaced a first predetermined distance from the outer wall of the fixed scroll and the free end of the second fin is spaced a second predetermined distance from the inner wall of the seal cap, the first predetermined distance > 0 and the second predetermined distance > 0.

In some embodiments, when at least one fin is provided in the exhaust passage, the exhaust passage extends in the axial direction of the fixed scroll, the fin also extends in the axial direction of the fixed scroll, and the fin extends in the axial direction by a length equal to that of the exhaust passage.

In some embodiments, an exhaust groove is provided on an upper end surface of the fixed scroll, one end of the exhaust groove communicates with the sound deadening chamber, and the other end of the exhaust groove communicates with the exhaust passage.

In some embodiments, the air discharge passage includes an air inlet opening on an inner peripheral wall of the seal cover and communicating with the air discharge groove;

the exhaust passage further comprises an exhaust port arranged on the inner peripheral wall of the sealing cover, and the exhaust port and the air inlet are isolated through a blocking structure.

In some embodiments, a length of a flow path of the exhaust passage between the intake port to the exhaust port is greater than a length of the blocking structure in a circumferential direction; and/or, the blocking structure is a stopper.

In some embodiments, the air outlet is a groove structure which is opened on the inner peripheral wall of the sealing cover towards the outer peripheral wall of the sealing cover; and/or the air inlet is also of a groove structure which is arranged on the inner peripheral wall of the sealing cover and faces the direction of the outer peripheral wall of the sealing cover; and/or the peripheral wall of the sealing cover is formed into a protruding structure protruding towards the radial outer side at the position of the air outlet.

In some embodiments, a first exhaust passage is further formed in the fixed scroll, and one end of the first exhaust passage communicates with the exhaust port and the other end communicates with the outside of the fixed scroll.

In some embodiments, the exhaust gas purification device further comprises an upper bracket and a housing, wherein a second exhaust passage is further arranged in the upper bracket or between the upper bracket and the inner wall of the housing, one end of the second exhaust passage is communicated with the first exhaust passage, and the other end of the second exhaust passage is communicated to the interior of the housing.

In some embodiments, the first exhaust passage extends in an axial direction of the fixed scroll, and the second exhaust passage also extends in an axial direction of the fixed scroll.

In some embodiments, a barrier is further provided between an inner peripheral wall of the seal cover and an outer peripheral wall of the fixed scroll, the gas discharge passage is located above the barrier, an oil discharge passage is formed below the barrier, and an oil discharge hole is formed through upper and lower ends of the barrier, the oil discharge hole communicating the gas discharge passage and the oil discharge passage.

In some embodiments, the fixed scroll further includes an upper bracket and a housing, the fixed scroll includes a base plate, a first oil guide hole is penetratingly disposed from an upper end to a lower end of the base plate, an upper end of the first oil guide hole communicates with the oil discharge hole, and a lower end of the first oil guide hole is capable of guiding oil to a position between at least two of the upper bracket, the orbiting scroll, and the fixed scroll.

In some embodiments, a second oil guide hole is further provided inside the upper bracket, one end of the second oil guide hole communicates with the first oil guide hole, and the other end of the second oil guide hole communicates to a portion between the bottom of the orbiting scroll and the upper end of the upper bracket.

In some embodiments, a third oil guide hole is further provided inside the upper bracket, and one end of the third oil guide hole communicates with the second oil guide hole and the other end communicates to a position between the upper bracket and the housing.

The present disclosure also provides an air conditioner including the compressor of any one of the preceding claims.

The compressor and the air conditioner have the following beneficial effects that:

1. according to the invention, the silencing cavity is arranged between the sealing cover and the fixed scroll, so that silencing and vibration reduction can be carried out on gas discharged from the exhaust hole of the fixed scroll, and the annular exhaust passage is arranged between the inner peripheral wall of the sealing cover and the outer peripheral wall of the fixed scroll, so that the gas in the silencing cavity can be introduced into the exhaust passage, the flow path of the gas is effectively increased, the silencing and vibration reduction effects are increased, and the noise reduction effect is achieved by restricting the exhaust direction of high-pressure gas; the fin structure arranged in the exhaust passage can further enhance the disturbance effect on the airflow and enhance the silencing effect on the airflow; the gas after oil-gas separation and noise reduction is guided into the shell through the first exhaust passage and the second exhaust passage and finally exhausted through the exhaust passage on the shell;

2. according to the oil-gas separation device, the annular exhaust passage is formed between the fixed scroll and the inner and outer peripheral walls of the sealing cover, so that oil-gas mixtures discharged from the exhaust holes can be subjected to effective oil-gas separation through centrifugal force along an annular flow path, oil is separated from refrigerant gas, disturbance on the oil-gas mixtures is enhanced through the structure of the fins, and the oil-gas separation effect is further enhanced; and the separated oil is guided to the space between the movable scroll and the upper bracket through the first, second and third oil guide holes to lubricate the space, and is guided into the shell to finish the function of recovering the oil.

Drawings

FIG. 1 is a cross-sectional overall view of the scroll compressor of the present disclosure;

FIG. 2 is an enlarged, fragmentary schematic view of a pump block assembly of the scroll compressor of the present disclosure;

FIG. 3 is a perspective and top view block diagram of the seal cover of the scroll compressor of the present disclosure;

FIG. 4 is a schematic front view of a high pressure gas discharge line of the scroll compressor of the present disclosure;

FIG. 5 is a schematic top view of the high pressure gas discharge path of the scroll compressor of the present disclosure;

FIG. 6 is an enlarged partial schematic view of the high pressure gas vent line of FIG. 5;

fig. 7 is a partially enlarged schematic view of a portion a in fig. 2 (a drain hole structure view) of the present disclosure;

FIG. 8 is a partially enlarged schematic view of portion A of FIG. 2 of the present disclosure (structural views of the first, second and third oil guide holes);

fig. 9 is a front view schematically illustrating a second oil passage of the scroll compressor of the present disclosure.

The reference numerals are represented as:

10. a housing; 11. oil return sheet metal parts; 20. a crankshaft; 30. an eccentric sleeve; 40. a first bearing; 50. a second bearing; 60. a sealing cover; 60(a), sealing the top of the cover; 60(b) sealing the inner wall of the cover; 61. an air inlet; 62. a fin; 63. an oil drain hole; 64. an exhaust port; 65. a barrier structure; 70. a fixed scroll; 70(a), the back of the fixed scroll; 70(b), a fixed scroll side wall; 71. an exhaust groove; 72. an exhaust hole; 73. an exhaust passage; 74. an oil discharge passage; 75. a sound-deadening chamber; 76. a first exhaust passage; 77. a barrier portion; 78. a substrate; 80. a movable scroll; 90. a lower bracket; 100. a lower support ring; 110. an upper bracket; 111. a second exhaust passage; 120. a motor stator; 130. a motor rotor; 140. an air suction pipe; 150. a first oil guide hole; 151. a second oil guide hole; 152. and a third oil guide hole.

Detailed Description

As shown in fig. 1-9, the present disclosure provides a compressor (preferably a scroll compressor) comprising:

the vortex shedding mechanism comprises a fixed vortex plate 70, a movable vortex plate 80 and a sealing cover 60, wherein the sealing cover 60 covers one end of the fixed vortex plate 70, which is far away from the movable vortex plate 80 in the axial direction, a silencing cavity 75 is formed between the sealing cover 60 and the fixed vortex plate 70, a vent hole 72 is formed in the fixed vortex plate 70, and the vent hole 72 is communicated with the silencing cavity 75; an annular exhaust passage 73 is formed between an inner peripheral wall of the seal cover 60 and an outer peripheral wall of the fixed scroll 70, and the muffling chamber 75 is communicable with the exhaust passage 73 so that the fluid coming out of the muffling chamber 75 enters the exhaust passage 73 to perform sound and vibration reduction.

According to the invention, the silencing cavity is arranged between the sealing cover and the fixed scroll, so that silencing and vibration reduction can be carried out on gas discharged from the exhaust hole of the fixed scroll, and the annular exhaust passage is arranged between the inner peripheral wall of the sealing cover and the outer peripheral wall of the fixed scroll, so that the gas in the silencing cavity can be introduced into the exhaust passage, the flow path of the gas is effectively increased, the silencing and vibration reduction effects are increased, and the noise reduction effect is achieved by restricting the exhaust direction of high-pressure gas; the exhaust noise of the scroll compressor is effectively reduced, and the vibration reduction effect is greatly improved; the present disclosure enables oil-gas mixture discharged from the gas discharge hole to be efficiently oil-gas separated by centrifugal force along an annular flow path by an annular gas discharge passage formed between the fixed scroll and the inner and outer peripheral walls of the seal cover, thereby separating oil from refrigerant gas.

As shown in fig. 1, the scroll compressor mainly includes a housing 10, a crankshaft 20, an eccentric sleeve 30, a first bearing 40, a second bearing 50, a sealing cover 60, a fixed scroll 70, a movable scroll 80, a lower bracket 90, a lower support ring 100, an upper bracket 110, a motor stator 120, a motor rotor 130, and a suction pipe 140.

Referring to fig. 1, the motor stator 120 is fixed to the housing 10 by means of a shrink fit, and the upper bracket 110 and the lower support ring 100 are fixed to the housing 10 by means of welding. The crankshaft 20 and the motor rotor 130 are fixed by shrink fit, and the crankshaft 20 is fixed by the first bearing 40 and the second bearing 50 cooperating with the upper bracket 110 and the lower bracket 90. The movable scroll 80 and the fixed scroll 70 are oppositely arranged on the upper bracket 110 with a phase angle difference of 180 degrees, the movable scroll 80 moves under the driving of the crankshaft 20 and is meshed with the fixed scroll 70 to form a series of crescent closed cavities which are mutually isolated and have constantly changed volumes.

As shown in fig. 2 and 3, the passage in this embodiment is mainly formed by combining the fixed scroll 70 and the seal cover 60, the fixed scroll back 70(a) and the seal cover top 60(a) form a sound deadening chamber 75, the fixed scroll side wall 70(b) and the seal cover inner wall 60(b) form an exhaust passage 73 and an oil discharge passage 74, the fixed scroll 70 and the upper bracket 110 are respectively provided with a first exhaust passage 76 and a second exhaust passage 111 corresponding to the exhaust port 64, and the passage outlets directly face the motor space where the motor stator 120 and the motor rotor 130 are located. The gas trajectory in this manner is as follows: the high-pressure refrigerant discharged from the discharge hole 72 of the fixed scroll 70 first enters the sound-deadening chamber 75, then enters the discharge passage 73 along the discharge groove 71, decelerates along the discharge passage 73, and then is discharged from the discharge port 64, and enters the motor space along the first discharge passage 76 in the fixed scroll 70 and the second discharge passage 111 in the upper bracket 110, thereby cooling the motor.

In some embodiments, at least one fin 62 is provided in the exhaust passage 73 to enhance turbulence of the fluid entering the exhaust passage 73; and/or, the exhaust passage 73 is a groove structure opened in the direction of the outer peripheral wall of the seal cover 60 on the inner peripheral wall of the seal cover 60. The fin structure arranged in the exhaust passage can further enhance the disturbance effect on the airflow, enhance the silencing effect on the airflow and increase the separation effect on oil through the disturbance effect; the exhaust passage is a groove structure which is arranged on the inner peripheral wall of the sealing cover and faces the outer peripheral wall, the exhaust passage with the groove structure can be effectively formed, exhaust gas is introduced into the silencing cavity, and the annular channel with the groove structure has the functions of silencing, damping and oil separation. And the gas after oil-gas separation and noise reduction is guided into the shell through the first exhaust passage and the second exhaust passage, and is finally discharged through the exhaust passage on the shell.

As shown in fig. 3, 4, and 5, an exhaust passage 73 is formed between the seal cover inner wall 60(b) and the fixed scroll side wall 70 (b). After being discharged from the fixed scroll discharge groove 71, the high-pressure refrigerant enters the discharge passage 73 from the gas inlet 61, and a large number of uniformly distributed fins 62 are arranged in the discharge passage 73. referring to fig. 6, after the high-pressure refrigerant enters the discharge passage 73, the high-pressure refrigerant generates a small vortex in the space a under the action of the centrifugal force of the high-pressure refrigerant and the fins 62, and the high-pressure refrigerant passes through a large number of fins to play a role in decelerating the high-pressure refrigerant.

In some embodiments, when at least one fin 62 is provided in the exhaust passage 73, the fins 62 include first fins provided on an inner peripheral wall of the seal cover 60 and provided to protrude in a direction toward the fixed scroll 70, and second fins provided on an outer peripheral wall of the fixed scroll 70 and provided to protrude in a direction toward the seal cover 60, the first fins and the second fins being alternately arranged in a flow direction of the airflow. The first fins are arranged on the inner peripheral wall of the sealing cover and protrude towards the direction of the fixed scroll, the second fins are arranged on the outer peripheral wall of the fixed scroll and protrude towards the direction of the inner wall of the sealing cover, and the first fins and the second fins are alternately arranged and can form a continuously bent flow channel, so that the flow path of the airflow is enlarged, the disturbance effect on the airflow is enhanced, the vibration and noise reduction effects are further improved, and the oil-gas separation effect is also improved.

In some embodiments, the free end of the first fin is spaced a first predetermined distance from the outer wall of the fixed scroll 70, and the free end of the second fin is spaced a second predetermined distance from the inner wall of the seal cap 60, the first predetermined distance being > 0 and the second predetermined distance being > 0. The continuously bent snake-shaped flow channel can be effectively formed by spacing a first preset distance between the free end of the first fin and the outer wall of the fixed vortex disc and spacing a second preset distance larger than 0 between the free end of the second fin and the inner wall of the sealing cover, and the disturbance effect of the air flow is further enhanced.

In some embodiments, when at least one fin 62 is provided in the exhaust passage 73, the exhaust passage 73 extends in the axial direction of the fixed scroll 70, the fin 62 also extends in the axial direction of the fixed scroll 70, and the length of the fin 62 extending in the axial direction is equal to the length of the exhaust passage 73 in the axial direction. The fin and the exhaust passage of the present disclosure are further preferred in structural form, that is, the fin extends in the axial direction in addition to protruding toward the seal cover or toward the fixed scroll, and the exhaust passage has an extension length in the axial direction, so that the flow area of the air flow can be increased, the disturbance effect on the air flow can be improved, and the vibration-damping and noise-reducing effect and the oil-gas separation effect can be improved.

In some embodiments, an exhaust groove 71 is provided on an upper end surface of the fixed scroll 70, one end of the exhaust groove 71 communicates with the sound-deadening chamber 75, and the other end of the exhaust groove 71 communicates with the exhaust passage 73. The exhaust groove structure is arranged on the upper end surface of the fixed scroll, so that gas can be introduced from the silencing cavity and introduced into the exhaust passage, and the effect of effectively conducting and exhausting is achieved.

In some embodiments, the air discharge passage 73 includes an air inlet 61 opened on an inner peripheral wall of the seal cover 60 and communicating with the air discharge groove 71;

the exhaust passage 73 further includes an exhaust port 64 opened on an inner peripheral wall of the sealing cover 60, and the exhaust port 64 is blocked from the intake port 61 by a blocking structure 65 (preferably, a stopper).

This is the preferred structural style of the exhaust passage of this disclosure, and the air inlet is followed the exhaust groove through the air inlet, and after the annular flow is carried out in the exhaust passage, again through the exhaust mouth discharge, and the block structure can play effective block air inlet and exhaust mouth (block from the circumferential direction), makes the gas can only flow along big circumferential direction (as shown in fig. 5, for example major arc), prevents that the gas from the direction of minor circumferential direction (such as minor arc) directly discharging from the exhaust mouth, prevents that the exhaust route from reducing, effectively increases the exhaust flow path, strengthens the air current disturbance, strengthens the effect of damping and making an uproar and the effect of oil content. The dam structure 65 is engaged with the fixed scroll side wall 70(b) to separate the intake port 61 and the exhaust port 64 of the exhaust passage 73, and ensures that the high-pressure refrigerant entering from the intake port 61 can flow along the exhaust passage 73.

In some embodiments, the length of the flow path of the exhaust passage 73 from the intake port 61 to the exhaust port 64 is greater than the length of the blocking structure 65 in the circumferential direction; and/or, the blocking structure 65 is a stopper. The present disclosure can enable the gas to flow only along the large circumferential direction (as shown in fig. 5, for example, the major arc), prevent the gas from being directly discharged from the exhaust port from the direction of the minor circumferential direction (as the minor arc), prevent the exhaust path from being reduced, effectively increase the exhaust flow path, enhance the gas flow disturbance, and enhance the vibration and noise reduction effect and the oil separation effect.

In some embodiments, the exhaust port 64 is a groove structure formed on the inner peripheral wall of the sealing cover 60 in a direction toward the outer peripheral wall of the sealing cover 60; and/or the air inlet 61 is also a groove structure which is arranged on the inner peripheral wall of the sealing cover 60 and faces the direction of the outer peripheral wall of the sealing cover 60; and/or, the peripheral wall of the sealing cover 60 is formed in a convex structure protruding toward the radial outside at the position of the air outlet 64. This is the preferred structural style of this disclosure's gas vent and air inlet, and the gas after through the exhaust passageway can be discharged outside sealed lid through groove structure's gas vent, and the air inlet through groove structure can introduce the gas in the amortization chamber to the exhaust passageway, and the gas vent position is outside protruding structure, can increase the discharge area, improves the exhaust effect.

In some embodiments, a first exhaust passage 76 is further opened in the fixed scroll 70, and one end of the first exhaust passage 76 communicates with the exhaust port 64 and the other end communicates with the outside of the fixed scroll 70. In the present disclosure, the first exhaust passage provided in the fixed scroll allows gas discharged from the exhaust port in the seal cover to be introduced to the outside of the fixed scroll through the first exhaust passage.

In some embodiments, the air conditioner further comprises an upper bracket 110 and the housing 10, wherein a second exhaust passage 111 is further provided inside the upper bracket 110 or between the upper bracket 110 and the inner wall of the housing 10, and one end of the second exhaust passage 111 is communicated with the first exhaust passage 76, and the other end is communicated to the inside of the housing 10. This is disclosed through the second exhaust passage who sets up in the inside of upper bracket, or between upper bracket and the casing inside, can communicate with first exhaust passage to inside discharging the gas behind the amortization to the casing, can play refrigerated effect to the motor part of upper bracket below, and discharge the exhaust outside the casing through the exhaust passage who sets up on the casing.

In some embodiments, the first exhaust passage 76 extends in the axial direction of the fixed scroll 70, and the second exhaust passage 111 also extends in the axial direction of the fixed scroll 70. This is the preferred configuration form of first exhaust passage and second exhaust passage of this disclosure, extends along axial direction and can discharge the gas after the amortization and noise reduction to the casing below the upper bracket along axial direction.

In some embodiments, a barrier 77 is further provided between the inner circumferential wall of the seal cover 60 and the outer circumferential wall of the fixed scroll 70, the gas discharge passage 73 is located above the barrier 77, an oil discharge passage 74 is formed below the barrier 77, an oil discharge hole 63 is formed through the upper and lower ends of the barrier 77, and the oil discharge hole 63 communicates the gas discharge passage 73 and the oil discharge passage 74. This disclosure is through setting up the partition portion in the below of exhaust passageway, and partition portion below still sets up the oil extraction passageway, and after the reinforcing disturbance of annular route and fin after gas gets into exhaust passageway, the oil in the oil-gas mixture is separated out to fall into the oil extraction passageway of below through the oil drain hole, and from oil extraction passageway drainage oil, can lead oil to the place that needs the lubrication or get into the inside recovery of casing lower part.

As shown in fig. 7, an oil drain passage 74 is formed between the seal cover inner wall 60(b) and the fixed scroll side wall 70 (b). The oil discharge passage 74 is located below the air discharge passage 73, and when the high-pressure refrigerant enters from the air inlet 61 while carrying the frozen oil, the high-pressure refrigerant generates a small vortex in the space a due to the fins 62 and its own centrifugal force, the frozen oil is separated by the centrifugal force, and the separated frozen oil flows into the oil discharge passage 74 through the oil discharge hole 63.

When the scroll compressor is operated, the high-pressure refrigerant and the frozen oil discharged from the discharge hole 72 of the fixed scroll 70 enter the silencing cavity 75, the discharge groove 71 is lower than the back surface of the fixed scroll in height, so the frozen oil enters the discharge groove 71 under the action of gravity, meanwhile, the discharge groove 71 is the only outlet of the silencing cavity 75, so the high-pressure refrigerant is discharged along the discharge groove 71 and enters the discharge passage 73, the frozen oil in the high-pressure refrigerant is separated under the action of the centrifugal force of the high-pressure refrigerant and the fins 62 in the discharge passage 73, slides down along the fins 62 and enters the oil discharge passage 64 through the oil discharge hole 63, the high-pressure refrigerant is decelerated and silenced under the action of the fins 62, and finally enters the motor space through the discharge hole 64 to cool the motor stator 120 and the motor rotor 130.

In some embodiments, the fixed scroll 70 further includes an upper bracket 110 and a housing 10, the fixed scroll 70 includes a base plate 78, a first oil guide hole 150 is penetratingly disposed from an upper end to a lower end of the base plate 78, an upper end of the first oil guide hole 150 communicates with the oil discharge hole 63, and a lower end of the first oil guide hole 150 is capable of guiding oil to a position between at least two of the upper bracket 110, the orbiting scroll 80, and the fixed scroll 70. The first oil guide hole is formed in the base plate of the fixed scroll, so that oil can be guided to the outside of the fixed scroll, can be guided to a position between the upper bracket and the movable scroll and can be lubricated, can be guided to a position between the movable scroll and the fixed scroll and can be lubricated, and can be guided to a position between the fixed scroll and the upper bracket and can be lubricated.

In some embodiments, a second oil guide hole 151 is further provided inside the upper bracket 110, one end of the second oil guide hole 151 communicates with the first oil guide hole 150, and the other end of the second oil guide hole 151 communicates with a portion between the bottom of the orbiting scroll 80 and the upper end of the upper bracket 110. The oil in the first oil guide hole can be introduced into the second oil guide hole formed in the upper support, and the oil is guided into the position between the movable scroll and the upper support to effectively lubricate the position.

In some embodiments, a third oil guide hole 152 is further provided inside the upper bracket 110, and one end of the third oil guide hole 152 communicates with the second oil guide hole 151 and the other end communicates with a position between the upper bracket 110 and the housing 10. This is disclosed still leads the oilhole structure through the inside third of seting up of upper bracket, can lead the oilhole intercommunication with the second to in introducing the oil bath of the bottom of casing, accomplish the effect of oil recovery.

As shown in fig. 8, the first oil guide hole 150 is formed in the fixed scroll 70, the refrigerant oil flowing through the oil discharge passage 74 enters the high pressure space under the action of pressure and gravity, and is lubricated between the movable scroll 80 and the upper bracket 110, so that the lubricating effect between the contact surfaces of the two is ensured, and the power consumption and damage caused by friction are effectively reduced.

As shown in fig. 9, the oil can be guided downward from the first and second exhaust passages with the gas, in addition to returning the oil from the oil discharge passage, the first, second, and third oil guide holes.

The device integrates noise reduction and oil-gas separation, plays a role in reducing noise by restricting the exhaust direction of high-pressure gas, and solves the problem that the high-pressure gas of a compressor directly impacts a shell to generate larger noise; the device matched with the compressor pump body is also provided, and can be matched to form an oil-gas passage; the high-pressure oil gas discharged by the pump body is subjected to oil-gas separation, and oil is guided, so that the effects of ensuring lubrication, accelerating oil return and improving the reliability of the compressor are achieved, and the problem of performance reduction of the compressor caused by the fact that a large amount of refrigeration oil is carried by a high-pressure refrigerant is solved; also provides a mode of oil-gas separation by using the blades and the self centrifugal force of the high-pressure refrigerant; the oil is guided by the device, the effects of eliminating an oil pool, reducing oil accumulation and improving the reliability of the compressor are achieved, and the problem that the noise is generated due to turbulent flow caused by the oil accumulation near the exhaust hole of the pump body of the compressor during the exhaust is solved.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, 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 disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A compressor, characterized by: the method comprises the following steps:

the vortex compressor comprises a fixed vortex disc (70), a movable vortex disc (80) and a sealing cover (60), wherein the sealing cover (60) covers one axial end, which is far away from the movable vortex disc (80), of the fixed vortex disc (70), a silencing cavity (75) is formed between the sealing cover (60) and the fixed vortex disc (70), an exhaust hole (72) is formed in the fixed vortex disc (70), and the exhaust hole (72) is communicated with the silencing cavity (75); an annular exhaust passage (73) is formed between an inner peripheral wall of the seal cover (60) and an outer peripheral wall of the fixed scroll (70), and the muffling chamber (75) is communicable with the exhaust passage (73) so that the fluid coming out of the muffling chamber (75) enters the exhaust passage (73);

the exhaust passage (73) is a groove structure which is arranged on the inner peripheral wall of the sealing cover (60) and is opened towards the outer peripheral wall of the sealing cover (60);

an exhaust groove (71) is formed in the upper end face of the fixed scroll (70), one end of the exhaust groove (71) is communicated with the silencing cavity (75), and the other end of the exhaust groove (71) is communicated with the exhaust passage (73); the exhaust passage (73) comprises an air inlet (61) which is arranged on the inner peripheral wall of the sealing cover (60) and is communicated with the exhaust groove (71);

the exhaust passage (73) further comprises an exhaust port (64) formed in the inner peripheral wall of the sealing cover (60), and the exhaust port (64) and the air inlet (61) are blocked by a blocking structure (65); the length of a flow path of the exhaust passage (73) from the intake port (61) to the exhaust port (64) is greater than the length of the blocking structure (65) in the circumferential direction.

2. The compressor of claim 1, wherein:

at least one fin (62) is disposed in the exhaust passage (73) to enhance turbulence of fluid entering the exhaust passage (73).

3. The compressor of claim 2, wherein:

when at least one fin (62) is provided in the exhaust passage (73), the fin (62) includes a first fin provided on an inner peripheral wall of the seal cover (60) and provided to protrude in a direction of the fixed scroll (70), and a second fin provided on an outer peripheral wall of the fixed scroll (70) and provided to protrude in a direction of the seal cover (60), the first fin and the second fin being alternately provided along a flow direction of the air flow.

4. A compressor according to claim 3, wherein:

the free ends of the first fins are spaced from the outer wall of the fixed scroll (70) by a first preset distance, the free ends of the second fins are spaced from the inner wall of the sealing cover (60) by a second preset distance, the first preset distance is larger than 0, and the second preset distance is larger than 0.

5. The compressor of claim 2, wherein:

when at least one fin (62) is provided in the exhaust passage (73), the exhaust passage (73) extends in the axial direction of the fixed scroll (70), the fin (62) also extends in the axial direction of the fixed scroll (70), and the length of the fin (62) extending in the axial direction is equal to the length of the exhaust passage (73) in the axial direction.

6. The compressor of claim 1, wherein:

the blocking structure (65) is a stopper.

7. The compressor of claim 1, wherein:

the exhaust port (64) is a groove structure which is arranged on the inner peripheral wall of the sealing cover (60) and faces the direction of the outer peripheral wall of the sealing cover (60); and/or the air inlet (61) is also of a groove structure which is arranged on the inner peripheral wall of the sealing cover (60) and faces the outer peripheral wall of the sealing cover (60); and/or the peripheral wall of the sealing cover (60) is formed into a convex structure protruding towards the radial outer side at the position of the exhaust port (64).

8. The compressor of claim 1, wherein:

a first exhaust passage (76) is further formed in the fixed scroll (70), and one end of the first exhaust passage (76) communicates with the exhaust port (64) and the other end communicates with the outside of the fixed scroll (70).

9. The compressor of claim 8, wherein:

the exhaust device is characterized by further comprising an upper support (110) and a shell (10), a second exhaust passage (111) is further arranged inside the upper support (110) or between the upper support (110) and the inner wall of the shell (10), one end of the second exhaust passage (111) is communicated with the first exhaust passage (76), and the other end of the second exhaust passage is communicated to the inside of the shell (10).

10. The compressor of claim 9, wherein:

the first exhaust passage (76) extends in the axial direction of the fixed scroll (70), and the second exhaust passage (111) also extends in the axial direction of the fixed scroll (70).

11. The compressor according to any one of claims 1 to 10, wherein:

a barrier portion (77) is further provided between the inner peripheral wall of the seal cover (60) and the outer peripheral wall of the fixed scroll (70), the exhaust passage (73) is located above the barrier portion (77), an oil drain passage (74) is formed below the barrier portion (77), an oil drain hole (63) is formed in the barrier portion (77) so as to penetrate through the upper end and the lower end of the barrier portion, and the oil drain hole (63) communicates the exhaust passage (73) and the oil drain passage (74).

12. The compressor of claim 11, wherein:

the fixed scroll (70) comprises a base plate (78), a first oil guide hole (150) is penetratingly formed from the upper end to the lower end of the base plate (78), the upper end of the first oil guide hole (150) is communicated with the oil discharge hole (63), and the lower end of the first oil guide hole (150) can guide oil to a position between at least two of the upper support (110), the movable scroll (80) and the fixed scroll (70).

13. The compressor of claim 12, wherein:

and a second oil guide hole (151) is further formed in the upper bracket (110), one end of the second oil guide hole (151) is communicated with the first oil guide hole (150), and the other end of the second oil guide hole (151) is communicated to a position between the bottom of the movable scroll (80) and the upper end of the upper bracket (110).

14. The compressor of claim 13, wherein:

a third oil guide hole (152) is further formed in the upper bracket (110), one end of the third oil guide hole (152) is communicated with the second oil guide hole (151), and the other end of the third oil guide hole is communicated to a position between the upper bracket (110) and the shell (10).

15. An air conditioner, characterized in that:

comprising a compressor according to any one of claims 1 to 14.