CN112727756A

CN112727756A - Scroll compressor, air conditioner and vehicle

Info

Publication number: CN112727756A
Application number: CN202110084586.4A
Authority: CN
Inventors: 胡余生; 陈肖汕; 刘韵; 吕浩福; 张俊杰; 杨帆
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-04-30
Anticipated expiration: 2041-01-21
Also published as: CN112727756B

Abstract

The present invention provides a scroll compressor, an air conditioner and a vehicle. The scroll compressor includes: a casing; a crankshaft; a moving and static scroll assembly, the moving and static scroll assemblies are arranged at the first end of the crankshaft, and the crankshaft and the moving and static scroll assemblies are arranged in the casing; a vibration damping mechanism, the vibration damping mechanism is located on the crankshaft. Between the second end and the housing, the damping mechanism includes a thrust piece and buffer oil, the housing has a accommodating groove, the thrust piece and the buffer oil are both accommodated in the accommodating groove, and the thrust piece is slidably connected to the accommodating groove , the thrust piece seals the buffer oil and is close to the second end of the crankshaft relative to the buffer oil, the damping mechanism has a damping state and an initial state, when the damping mechanism is in the initial state, the thrust piece and the second end of the crankshaft The ends are arranged at intervals; when the crankshaft moves, the crankshaft moves to one side of the damping mechanism and squeezes the thrust piece, so that the damping mechanism is switched from the initial state to the damping state. The invention solves the problems of large noise and low reliability of the scroll compressor in the prior art.

Description

Scroll compressor, air conditioner and vehicle

Technical Field

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

Background

At present, the vehicle-mounted compressor is developed towards the trend of small size and light weight, and the compressor is required to have large refrigerating capacity output and small appearance structure. Under the condition of high-capacity output, the gas force borne by a compressor shafting is increased, the shafting bearing is required to have larger bearing capacity, the bearing bearings at two ends of the existing compressor shafting are supported by ball bearings commonly, the advantages that the ball bearings are supported by a crankshaft and an inner ring of the bearing in an interference mode, the shafting rotates along with the inner ring, the shafting cannot move in the axial direction, and the interference with other parts is avoided! But along with the compressor refrigerating capacity increase, shafting bearing capacity increases thereupon, adopts ball bearing also to promote bearing capacity through increasing external diameter, width, ball diameter, must bring the structure and expand, is unfavorable for the small-size compact design of compressor, may all have the bearing capacity even and can not satisfy the user demand's problem.

However, the cylindrical roller bearing has larger bearing capacity under the same size, and is the choice of a small-sized large-bearing compressor. The inner and outer rings of the cylindrical roller bearing are of a separated structure, and the problem of positioning the shaft system in the axial direction needs to be solved. The vehicle-mounted compressor is generally horizontally arranged, a shaft system cannot be limited on a thrust structure by gravity to enable the thrust structure to be closely attached to the compressor for operation, the compressor is greatly impacted due to bumping of a vehicle, the horizontally arranged shaft system impacts a rear cover or other parts, and the shaft system can generate an excitation effect in the axial direction due to the mode of the shaft system, so that impact vibration is easily transmitted and noise is generated, the performance is reduced, the service life is shortened, and the reliability of the compressor cannot be guaranteed.

As can be seen from the above, the prior art has the problems of high noise and low reliability of the scroll compressor.

Disclosure of Invention

The invention mainly aims to provide a scroll compressor, an air conditioner and a vehicle, and aims to solve the problems of high noise and low reliability of the scroll compressor in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a scroll compressor including: a housing; a crankshaft; the dynamic and static vortex disc assembly is arranged at the first end of the crankshaft, and the crankshaft and the dynamic and static vortex disc assembly are arranged in the shell; the damping mechanism is arranged in the shell and positioned between the second end of the crankshaft and the shell, the damping mechanism comprises a thrust piece and buffer oil, the shell is provided with an accommodating groove, the thrust piece and the buffer oil are accommodated in the accommodating groove, the thrust piece is in sliding connection with the accommodating groove, the thrust piece seals the buffer oil and is close to the second end of the crankshaft relative to the buffer oil, and the damping mechanism has a damping state and an initial state, wherein when the damping mechanism is in the initial state, the thrust piece and the second end of the crankshaft are arranged at intervals; when the crankshaft moves, the crankshaft moves towards one side of the damping mechanism and applies extrusion force to the thrust piece, so that the damping mechanism is switched to a damping state from an initial state.

Further, the damping mechanism still includes the sealing member, and the sealing member setting is between the inner wall of thrust piece and holding tank for sealed buffer fluid.

Further, the casing is including the end cover and the exhaust lid that are located the casing both ends, and damping mechanism sets up in the end cover, and scroll compressor still includes the oil transportation passageway, and the oil transportation passageway communicates with the inner chamber and the holding tank of exhaust lid respectively to make the interior buffer fluid of the inner chamber of exhaust lid carry to in the holding tank.

Further, the scroll compressor further comprises an axle end bearing, an outer ring of the axle end bearing is connected to the end cover, and an inner ring of the axle end bearing is connected with the second end of the crankshaft.

Further, the inner surface of the end cap has a positioning ring protruding toward the crankshaft, and the outer ring of the shaft end bearing is attached to the inner annular surface of the positioning ring.

Further, the crankshaft is provided with a central channel, one end of the central channel is communicated to the inner cavity of the exhaust cover, and the other end of the central channel is communicated to the end face of the second end of the crankshaft.

Furthermore, the central passage is used as at least one part of the oil delivery passage, a one-way valve is arranged at the second end of the central passage, which is positioned at the crankshaft, the one-way valve and the thrust piece are arranged at intervals, and the thrust piece is provided with a through hole so that buffer oil enters the accommodating groove through the through hole.

Further, the oil delivery passage includes a first communicating pipe section communicating with the receiving groove and a second communicating pipe section communicating with the inner cavity of the exhaust cover.

Further, the oil delivery passage also comprises a capillary throttling pipe section which is communicated with the first communication pipe section and the second communication pipe section.

Further, scroll compressor still includes communicating pipe and end cap, sets up communicating pipe on the end cover and the one end and the holding tank intercommunication of communicating pipe, and buffering fluid passes through after pouring into the holding tank into communicating pipe, and the end cap is sealed with the other end of communicating pipe.

Further, the other end of the communication pipe is positioned outside the shell; or the other end of the communication pipe is located inside the housing.

Further, the scroll compressor further comprises a one-way valve, and the one-way valve is arranged on the oil transportation channel so that buffer oil in the inner cavity of the exhaust cover flows to one side of the accommodating groove.

Further, the oil transfer passage has a throttling capillary section.

Further, the scroll compressor still includes sealing washer and apron, and sealing washer and apron set up in the retainer ring in order along the direction of keeping away from the axle head bearing to it is sealed with the axle head bearing.

Furthermore, a limiting part is further arranged on the groove wall of the accommodating groove, and the thrust part is limited in the accommodating groove by the limiting part.

Further, the scroll compressor further comprises an antifriction structure, and the antifriction structure is arranged on the end face of the second end of the crankshaft or the end face of the side, facing the crankshaft, of the thrust piece.

Further, the wear reducing structure includes a ball structure.

Further, the ball structure is a plane ball bearing; or the ball structure comprises a ball fixing piece and a plurality of ball balls, and the ball balls are arranged on the ball fixing piece at intervals.

According to another aspect of the present invention, there is provided an air conditioner including the scroll compressor described above.

According to another aspect of the present invention, there is provided a vehicle including the air conditioner described above.

By applying the technical scheme of the invention, the scroll compressor comprises a shell, a crankshaft, a movable and static scroll component and a vibration damping mechanism, wherein the movable and static scroll component is arranged at the first end of the crankshaft, the crankshaft and the movable and static scroll component are arranged in the shell, the vibration damping mechanism is arranged in the shell and positioned between the second end of the crankshaft and the shell, the vibration damping mechanism comprises a thrust piece and buffer oil liquid, the shell is provided with a containing groove, the thrust piece and the buffer oil liquid are both contained in the containing groove, the thrust piece is in sliding connection with the containing groove, the thrust piece seals the buffer oil liquid and is close to the second end of the crankshaft relative to the buffer oil liquid, the vibration damping mechanism is provided with a vibration damping state and an initial state, when the vibration damping mechanism is in the initial state, the thrust piece and the second end of the crankshaft are arranged at intervals, when the crankshaft moves to one side of the vibration damping mechanism and, the compressibility of buffer oil is little, has the damping effect to the drunkenness of bent axle when damping mechanism is in the damping state, avoids the bent axle drunkenness to cause great impact to the compressor, effectively lowers vibration transmission, noise reduction to avoid the compressor to operate the performance degradation that harmfully causes, life-span to shorten, guaranteed the reliability of compressor, solved among the prior art problem that scroll compressor noise is big, the reliability is low.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic view of a scroll compressor in accordance with a first embodiment of the present invention;

fig. 2 is a partially enlarged view of a vibration damping mechanism in an initial state according to a first embodiment of the present invention;

fig. 3 is a partially enlarged view of a vibration damping mechanism in a vibration damping state according to a first embodiment of the present invention;

FIG. 4 is a schematic view of an angle at the damping mechanism according to a first embodiment of the present invention;

FIG. 5 is a partial enlarged view of the second embodiment of the present invention at A;

FIG. 6 is a schematic structural view showing a scroll compressor in the third embodiment of the present invention;

fig. 7 is a schematic structural view showing a scroll compressor in the fourth embodiment of the present invention;

FIG. 8 is a schematic structural view showing a scroll compressor in a fifth embodiment of the present invention;

FIG. 9 shows a schematic of the construction of a scroll compressor in a sixth embodiment of the present invention;

fig. 10 is a schematic structural view showing a scroll compressor in the seventh embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. an end cap; 111. accommodating grooves; 112. a positioning ring; 12. an exhaust cover; 20. a crankshaft; 21. a central channel; 30. a dynamic and static vortex plate component; 40. a vibration reduction mechanism; 41. a thrust member; 42. buffering oil liquid; 50. a seal member; 60. an oil delivery passage; 61. a first communicating pipe section; 62. a second communicating pipe section; 63. a throttling capillary section; 70. a shaft end bearing; 80. a communicating pipe; 90. a plug; 100. a one-way valve; 110. a seal ring; 120. a cover plate; 130. a limiting member; 140. and an antifriction structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the problems of high noise and low reliability of a scroll compressor in the prior art, the invention provides a scroll compressor, an air conditioner and a vehicle. Among them, the following air conditioner includes the following scroll compressor. The vehicle described below includes the air conditioner described below.

Example one

As shown in fig. 1 to 4, the scroll compressor includes a housing 10, a crankshaft 20, an orbiting scroll assembly 30, and a damping mechanism 40. The orbiting scroll assembly 30 is disposed at a first end of the crankshaft 20, and the crankshaft 20 and the orbiting scroll assembly 30 are disposed in the case 10. The damping mechanism 40 is disposed within the housing 10 between the second end of the crankshaft 20 and the housing 10. The damping mechanism 40 includes a thrust member 41 and a buffer oil liquid 42, the housing 10 has a receiving groove 111, the thrust member 41 and the buffer oil liquid 42 are both received in the receiving groove 111, and the thrust member 41 is slidably connected to the receiving groove 111. The thrust piece 41 seals the buffer oil 42 and is located near a second end of the crankshaft 20 relative to the buffer oil 42, and the damping mechanism 40 has a damping state and an initial state. Wherein the thrust piece 41 is spaced apart from the second end of the crankshaft 20 when the damping mechanism 40 is in the initial state. When the crankshaft 20 is shifted, the crankshaft 20 moves to the side of the damping mechanism 40 and applies a pressing force to the thrust member 41 to switch the damping mechanism 40 from the initial state to the damping state.

By the scroll compressor comprising a shell 10, a crankshaft 20, a fixed and fixed scroll assembly 30 and a damping mechanism 40, the fixed and fixed scroll assembly 30 is arranged at a first end of the crankshaft 20, the crankshaft 20 and the fixed and fixed scroll assembly 30 are arranged in the shell 10, the damping mechanism 40 is arranged in the shell 10 and is positioned between a second end of the crankshaft 20 and the shell 10, the damping mechanism 40 comprises a thrust piece 41 and buffer oil 42, the shell 10 has a containing groove 111, the thrust piece 41 and the buffer oil 42 are both contained in the containing groove 111, the thrust piece 41 is in sliding connection with the containing groove 111, the thrust piece 41 seals the buffer oil 42 and is close to the second end of the crankshaft 20 relative to the buffer oil 42, the damping mechanism 40 has a damping state and an initial state, when the damping mechanism 40 is in the initial state, the thrust piece 41 is spaced from the second end of the crankshaft 20, when the crankshaft 20 moves to one side of the damping mechanism 40 and applies a pressing force to the thrust piece 41, so that the vibration reduction mechanism 40 is switched to a vibration reduction state from an initial state, the compressibility of the buffer oil liquid 42 is small, the vibration reduction mechanism 40 has a vibration reduction effect on the movement of the crankshaft 20 when in the vibration reduction state, the phenomenon that the movement of the crankshaft 20 causes large impact on the compressor is avoided, the vibration transmission is effectively reduced, the noise is reduced, the performance reduction and the service life shortening caused by poor operation of the compressor are avoided, and the reliability of the compressor is ensured.

As shown in fig. 2-3, the damping mechanism 40 further includes a seal 50. The seal 50 is provided between the thrust member 41 and the inner wall of the housing groove 111 for sealing the buffer oil 42. In the present embodiment, after the oil-gas separation at the exhaust cover 12, the separated oil enters the inner cavity of the exhaust cover 12 to form the buffer oil 42. The buffer oil 42 in the exhaust cover 12 has a high pressure and still has a certain pressure after entering the receiving groove 111 through the oil transfer passage 60, and the buffer oil 42 is prevented from leaking from the receiving groove 111 by providing the sealing member 50.

As shown in fig. 2 to 4, a stopper 130 is further disposed on a wall of the accommodating groove 111. The limiting member 130 limits the thrust member 41 in the accommodating groove 111.

As shown in fig. 1, the case 10 includes end caps 11 and an exhaust cap 12 at both ends of the case 10. The damping mechanism 40 is disposed within the end cap 11. The scroll compressor further includes an oil delivery passage 60, and the oil delivery passage 60 is respectively communicated with the inner cavity of the discharge cover 12 and the receiving groove 111, so that the buffer oil 42 in the inner cavity of the discharge cover 12 is delivered into the receiving groove 111. Specifically, the oil delivery passage 60 is provided in the casing 10, and the oil delivery passage 60 is provided inside the casing 10, so that the space of the compressor can be reasonably utilized.

As shown in fig. 1-3, the scroll compressor further includes an axial end bearing 70. The outer race of the shaft end bearing 70 is attached to the end cap 11 and the inner race of the shaft end bearing 70 is attached to the second end of the crankshaft 20. Specifically, the inner ring of the shaft end bearing 70 and the second end of the crankshaft 20 are in clearance fit and roll rotation.

In the present embodiment, the shaft end bearing 70 is a ball bearing. The scroll compressor also includes a bracket bearing having an inner race that is an interference fit with the first end of the crankshaft 20. The support bearing is a cylindrical roller bearing. The cylindrical roller bearing has larger bearing capacity under the same size, thereby improving the bearing capacity of the bracket bearing. Of course, just by setting the bracket bearing as a cylindrical roller bearing, and the inner and outer rings of the cylindrical roller bearing are of a separated structure, the problem of positioning the shaft system in the axial direction needs to be solved, and the vibration reduction mechanism 40 is set on the scroll compressor in this embodiment to solve the problem of the play of the crankshaft 20. Specifically, a flange is arranged at one end of the inner ring of the bracket bearing, which is far away from the second end of the crankshaft 20, and the flange can push against a roller of the bracket bearing, so that the crankshaft 20 is prevented from moving towards the first end of the crankshaft 20.

In an alternative embodiment, the inner race of the carrier bearing is free of the flange. The first end of the crankshaft 20 thus also needs to be provided with a damping mechanism 40. Both ends of the crankshaft 20 are provided with the damping mechanisms 40, so that the crankshaft 20 can play a damping role when moving towards any direction of both ends, the phenomenon that the compressor is greatly impacted due to the movement of the crankshaft 20 is avoided, vibration transmission is effectively reduced, noise is reduced, performance reduction and service life shortening caused by poor operation of the compressor are avoided, and the reliability of the compressor is ensured.

As shown in fig. 1 to 3, the inner surface of the end cover 11 has a positioning ring 112 protruding toward the crankshaft 20. The outer race of the shaft end bearing 70 is attached to the inner annular surface of the retaining ring 112. Specifically, the outer ring of the shaft end bearing 70 is in interference fit with the positioning ring 112.

In the present embodiment, the second end of the crankshaft 20 has a shoulder. When the buffer oil 42 reaches the maximum compression amount, there is a certain gap between the shoulder of the crankshaft 20 and the end surface of the shaft end bearing 70, and the shoulder of the crankshaft 20 does not contact and rub with the end surface of the shaft end bearing 70. Therefore, the power loss of the compressor caused by friction can be prevented, and the performance of the compressor is ensured.

As shown in FIG. 1, the scroll compressor also includes a check valve 100. The check valve 100 is provided in the oil delivery passage 60 so that the buffer oil 42 in the inner cavity of the exhaust cover 12 flows toward the housing groove 111. By providing the check valve 100, the buffer oil 42 in the accommodating groove 111 is prevented from flowing back into the inner cavity of the exhaust cover 12, and the damping effect of the damping mechanism 40 is ensured.

Example two

The difference from the first embodiment is that the scroll compressor further includes a wear reducing structure 140.

As shown in fig. 5, a wear reducing structure 140 is provided on an end surface of the second end of the crankshaft 20. By providing the antifriction structure 140, when the crankshaft 20 is shifted and the end surface of the second end of the crankshaft 20 abuts against the end surface of the thrust member 41, friction can be reduced, power consumption can be reduced, and power loss of the compressor can be reduced. Of course, the wear reducing structure 140 may be disposed on the end surface of the thrust piece 41 facing the crankshaft 20, and may be selected according to actual requirements.

In the present embodiment, the wear reducing structure 140 includes a ball structure. Specifically, the ball structure is a planar ball bearing. Through setting up the ball structure, when crankshaft 20 takes place the drunkenness, when the terminal surface of the second end of crankshaft 20 and the terminal surface butt of thrust piece 41, be rolling friction between crankshaft 20 and the thrust piece 41, can reduce frictional force greatly, reduce the consumption to reduce the power loss of compressor. Of course, the ball structure can also include ball fixing piece and a plurality of ball balls, and a plurality of ball intervals set up on ball fixing piece, can select according to actual demand.

EXAMPLE III

The difference from the first exemplary embodiment is that the oil supply channel 60 has a throttling capillary section 63.

As shown in fig. 6, the buffer oil 42 in the inner cavity of the exhaust cover 12 is throttled and depressurized after flowing through the throttling capillary section 63, and buffer oil 42 at an intermediate pressure is formed and guided to the holding tank 111. This reduces the pressure differential with the low suction side of the compressor, thereby reducing the high demand on seal 50 for large pressure differentials.

Example four

The difference from the first embodiment is that the oil transfer passage 60 is arranged differently from the first embodiment.

As shown in fig. 7, the crankshaft 20 has a central passage 21. One end of the central passage 21 communicates with the inner cavity of the exhaust cover 12, and the other end of the central passage 21 communicates with the end surface of the second end of the crankshaft 20.

In the present embodiment, the central passage 21 serves as at least a part of the oil delivery passage 60. The central passage 21 is provided with a check valve 100 at a second end of the crankshaft 20, the check valve 100 being spaced apart from a thrust member 41, the thrust member 41 having a through hole so that the buffer oil 42 enters the housing groove 111 through the through hole. Through setting up central passage 21 and regarding central passage 21 as at least partly of oil delivery passageway 60, can carry buffer fluid 42 to holding tank 111 in by the inner chamber of exhaust cover 12, can be again with buffer fluid 42 drainage to axle head bearing 70, lubricate axle head bearing 70, improve axle head bearing 70's reliability.

As shown in FIG. 7, the scroll compressor further includes a seal ring 110 and a cover plate 120. The sealing ring 110 and the cover plate 120 are sequentially disposed within the retaining ring 112 in a direction away from the shaft end bearing 70 to seal the shaft end bearing 70. This prevents the buffer oil 42 from leaking from the shaft end bearing 70.

EXAMPLE five

The difference from the fourth embodiment is that the oil delivery passage 60 is arranged differently from the fourth embodiment.

As shown in fig. 8, the oil delivery passage 60 includes a first communication pipe section 61 communicating with the receiving groove 111 and a second communication pipe section 62 communicating with the inner cavity of the exhaust cover 12. Specifically, one end of the first communicating pipe section 61 communicates with the accommodating groove 111, and the other end extends out of the housing 10. One end of the second communicating pipe section 62 communicates with the inner cavity of the exhaust cover 12, and the other end extends out of the housing 10.

In this embodiment, the oil delivery passage 60 further includes a capillary throttle section communicating the first communication pipe section 61 and the second communication pipe section 62. By disposing the oil delivery passage 60 outside the casing 10, the structural components inside the compressor can be simplified, avoiding the limitation of the internal structural disposition space.

EXAMPLE six

The difference from the fourth embodiment is that the buffer oil 42 is provided in a different manner from the fourth embodiment.

As shown in FIG. 9, the scroll compressor further includes a communication tube 80 and a plug 90. The communication pipe 80 is disposed on the end cover 11, one end of the communication pipe 80 is communicated with the receiving groove 111, and after the buffer oil 42 is injected into the receiving groove 111 through the communication pipe 80, the other end of the communication pipe 80 is sealed by the plug 90. Thus, the buffer oil liquid 42 can be directly injected into the accommodating groove 111, and the operation is simple and convenient.

In the present embodiment, the other end of the communication pipe 80 is located outside the housing 10.

EXAMPLE seven

The difference from the sixth embodiment is that the arrangement of the communication pipe 80 is different from that of the sixth embodiment.

As shown in fig. 10, the other end of the communication pipe 80 is located inside the housing 10.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: by the scroll compressor comprising a shell 10, a crankshaft 20, a fixed and fixed scroll assembly 30 and a damping mechanism 40, the fixed and fixed scroll assembly 30 is arranged at a first end of the crankshaft 20, the crankshaft 20 and the fixed and fixed scroll assembly 30 are arranged in the shell 10, the damping mechanism 40 is arranged in the shell 10 and is positioned between a second end of the crankshaft 20 and the shell 10, the damping mechanism 40 comprises a thrust piece 41 and buffer oil 42, the shell 10 has a containing groove 111, the thrust piece 41 and the buffer oil 42 are both contained in the containing groove 111, the thrust piece 41 is in sliding connection with the containing groove 111, the thrust piece 41 seals the buffer oil 42 and is close to the second end of the crankshaft 20 relative to the buffer oil 42, the damping mechanism 40 has a damping state and an initial state, when the damping mechanism 40 is in the initial state, the thrust piece 41 is spaced from the second end of the crankshaft 20, when the crankshaft 20 moves to one side of the damping mechanism 40 and applies a pressing force to the thrust piece 41, so that the vibration reduction mechanism 40 is switched to a vibration reduction state from an initial state, the compressibility of the buffer oil liquid 42 is small, the vibration reduction mechanism 40 has a vibration reduction effect on the movement of the crankshaft 20 when in the vibration reduction state, the phenomenon that the movement of the crankshaft 20 causes large impact on the compressor is avoided, the vibration transmission is effectively reduced, the noise is reduced, the performance reduction and the service life shortening caused by poor operation of the compressor are avoided, and the reliability of the compressor is ensured.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. a scroll compressor, is characterized in that, comprises:

housing (10);

crankshaft (20);

A moving and stationary scroll assembly (30), wherein the moving and stationary scroll assembly (30) is arranged at the first end of the crankshaft (20), and the crankshaft (20) and the moving and stationary scroll assembly (30) are arranged at the first end of the crankshaft (20). inside the casing (10);

A damping mechanism (40), the damping mechanism (40) is provided in the housing (10) and located between the second end of the crankshaft (20) and the housing (10), the The vibration damping mechanism (40) includes a thrust piece (41) and a buffer oil (42), the housing (10) has a accommodating groove (111), the thrust piece (41) and the buffer oil (42). 42) Both are accommodated in the accommodating groove (111), the thrust piece (41) is slidably connected with the accommodating groove (111), and the thrust piece (41) holds the buffer oil (42) ) is sealed and close to the second end of the crankshaft (20) relative to the buffer oil (42), the damping mechanism (40) has a damping state and an initial state, wherein,

When the damping mechanism (40) is in the initial state, the thrust member (41) is spaced apart from the second end of the crankshaft (20);

When the crankshaft (20) moves, the crankshaft (20) moves to the side of the vibration damping mechanism (40) and exerts a pressing force on the thrust member (41), so as to reduce the vibration The mechanism (40) is switched from the initial state to the damping state.

2 . The scroll compressor according to claim 1 , wherein the vibration damping mechanism ( 40 ) further comprises a sealing member ( 50 ), and the sealing member ( 50 ) is arranged on the thrust member ( 41 ). 3 . ) and the inner wall of the accommodating groove (111) for sealing the buffer oil (42).

3. The scroll compressor according to claim 1, wherein the casing (10) comprises end covers (11) and an exhaust cover (12) located at both ends of the casing (10), so The vibration damping mechanism (40) is arranged in the end cover (11), and the scroll compressor further comprises an oil delivery passage (60), the oil delivery passage (60) is respectively connected to the exhaust cover (12). ) communicates with the accommodating groove (111), so that the buffer oil (42) in the inner cavity of the exhaust cover (12) is transported into the accommodating groove (111).

4. The scroll compressor according to claim 3, wherein the scroll compressor further comprises a shaft end bearing (70), and the outer ring of the shaft end bearing (70) is connected to the end cover On (11), the inner ring of the shaft end bearing (70) is connected with the second end of the crankshaft (20).

5. The scroll compressor according to claim 4, wherein the inner surface of the end cover (11) has a positioning ring (112) protruding toward the crankshaft (20), and the shaft end bearing The outer ring of (70) is connected to the inner ring surface of the positioning ring (112).

6. The scroll compressor according to claim 5, wherein the crankshaft (20) has a central passage (21), and one end of the central passage (21) is communicated with the exhaust cover (12) The inner cavity of the central passage (21) is communicated with the end face of the second end of the crankshaft (20).

7 . The scroll compressor according to claim 6 , wherein the central passage ( 21 ) is used as at least a part of the oil delivery passage ( 60 ), and the central passage ( 21 ) is located on the crankshaft ( 7 . A check valve (100) is provided at the second end of 20), the check valve (100) is spaced apart from the thrust piece (41), and the thrust piece (41) has a through hole, so that the The buffer oil (42) enters the accommodating groove (111) through the through hole.

8 . The scroll compressor according to claim 6 , wherein the oil delivery passage ( 60 ) comprises a first communication pipe section ( 61 ) communicating with the accommodating groove ( 111 ) and a first communicating pipe segment ( 61 ) communicating with the exhaust gas. 9 . A second communication pipe section (62) communicated with the inner cavity of the cover (12).

9 . The scroll compressor according to claim 8 , wherein the oil delivery passage ( 60 ) further comprises a hairline connecting the first communication pipe section ( 61 ) and the second communication pipe section ( 62 ) Detail flow pipe segment.

10. The scroll compressor according to claim 6, wherein the scroll compressor further comprises a communication pipe (80) and a plug (90), and the communication pipe (80) is provided at the end On the cover (11) and one end of the communication pipe (80) is communicated with the accommodating groove (111), the buffer oil (42) is injected into the accommodating groove (111) through the communication pipe (80) Then, the plug (90) seals the other end of the communication pipe (80).

11. The scroll compressor of claim 10, wherein

The other end of the communication pipe (80) is located outside the casing (10); or

The other end of the communication pipe (80) is located inside the casing (10).

12. The scroll compressor according to claim 3, characterized in that, the scroll compressor further comprises a check valve (100), and the check valve (100) is arranged in the oil delivery passage (60). ), so that the buffer oil (42) in the inner cavity of the exhaust cover (12) flows to the side of the accommodating groove (111).

13. The scroll compressor according to claim 3, characterized in that, the oil delivery passage (60) has a throttle capillary section (63).

14. The scroll compressor according to claim 5, wherein the scroll compressor further comprises a sealing ring (110) and a cover plate (120), the sealing ring (110) and the cover plate (120) are sequentially arranged in the locating ring (112) in a direction away from the shaft end bearing (70), so as to seal the shaft end bearing (70).

15. The scroll compressor according to claim 1, characterized in that, a limiting member (130) is further provided on the groove wall of the accommodating groove (111), and the limiting member (130) restricts the The pushing member (41) is limited in the accommodating groove (111).

16. The scroll compressor according to claim 1, characterized in that, the scroll compressor further comprises a wear-reducing structure (140), and the wear-reducing structure (140) is provided on the side of the crankshaft (20). The end face of the second end or the end face of the thrust piece (41) facing the crankshaft (20).

17. The scroll compressor of claim 16, wherein the wear reducing structure (140) comprises a ball structure.

18. The scroll compressor of claim 17, wherein:

The ball structure is a plane ball bearing; or

The ball structure includes a ball fixing member and a plurality of ball balls, and a plurality of the ball balls are arranged on the ball fixing member at intervals.

19. An air conditioner comprising the scroll compressor of any one of claims 1 to 18.

20. A vehicle comprising the air conditioner of claim 19.