CN114412781A

CN114412781A - Scroll compressor and air conditioner

Info

Publication number: CN114412781A
Application number: CN202210169595.8A
Authority: CN
Inventors: 赵豪川; 徐嘉; 刘双来; 方琪
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-04-29
Anticipated expiration: 2042-02-23
Also published as: CN114412781B

Abstract

The invention belongs to the technical field of compressors and discloses a scroll compressor and an air conditioner, wherein the scroll compressor comprises a crankshaft, a crankshaft oil pool and an oil passage, and the crankshaft is provided with an oil guide structure; when the crankshaft rotates to one end of the oil guide structure to be communicated with the crankshaft oil pool and the other end of the oil guide structure is communicated with the oil passing passage, the oil guide structure guides the lubricating oil in the crankshaft oil pool out through the oil passing passage; the operating frequency of the scroll compressor is positively correlated with the frequency of the connection of the oil guide structure, the crankshaft oil pool and the oil passing passage. The oil guide structure communicates the crankshaft oil pool with the oil passing passage once every time the crankshaft rotates for one circle, and in the process, along with the increase of the operating frequency of the compressor, the number of times that the oil guide structure communicates the crankshaft oil pool with the oil passing passage is increased in the same time, and the oil supply amount is correspondingly increased; otherwise, the times are reduced, and the oil supply amount is reduced; therefore, the invention can effectively meet the oil quantity requirements of the compressor under different frequencies by correlating the oil quantity with the running frequency.

Description

Scroll compressor and air conditioner

Technical Field

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

Background

The scroll compressor is widely applied to the field of air conditioners due to higher working efficiency, and in order to ensure that the scroll compressor can stably and reliably operate, friction pairs among all parts must be effectively lubricated. The oil supply of the back pressure cavity of the existing compressor generally adopts the oil supply of an oil through groove, and the principle is as follows: there is pressure differential in back pressure chamber and oil bath, leads to the oil groove and sets up at the high low pressure division point department, and lubricating oil gets into the back pressure chamber that is in the low-pressure region by the high-pressure region through leading to the oil groove under the effect of pressure, and the oil mass of this kind of fuel feeding mode is only relevant with pressure differential, can't satisfy the different demands of oil mass under the different frequency of compressor.

Disclosure of Invention

In view of this, the present invention provides a scroll compressor and an air conditioner, in which an oil guide structure is disposed on a crankshaft, and oil supply connection and disconnection are realized by rotation of the crankshaft, so that an operating frequency of the compressor is positively correlated to an oil supply frequency, and a problem of mismatching of oil supply amount and frequency in a conventional technology is solved.

In order to solve the above problems, according to an aspect of the present application, an embodiment of the present invention provides a scroll compressor, where the scroll compressor includes a crankshaft, a crankshaft oil sump, and an oil passage, and an oil guide structure is disposed on the crankshaft; when the crankshaft rotates to one end of the oil guide structure to be communicated with the crankshaft oil pool and the other end of the oil guide structure is communicated with the oil passing passage, the oil guide structure guides the lubricating oil in the crankshaft oil pool out through the oil passing passage; the operating frequency of the scroll compressor is positively correlated with the frequency of the connection of the oil guide structure, the crankshaft oil pool and the oil passing passage.

In some embodiments, the oil guiding structure comprises a first collar arranged on a shaft shoulder of the crankshaft, the first collar is provided with a first oil passing notch, and the first oil passing notch connects the crankshaft oil pool with the oil passing passage in the rotation process of the crankshaft.

In some embodiments, a first seal structure is disposed between the first collar and the upper bracket of the compressor.

In some embodiments, the oil guiding structure comprises a first oil baffle plate sleeved on the shaft shoulder of the crankshaft, the first oil baffle plate is provided with a second oil passing gap, and the second oil passing gap connects the crankshaft oil pool with the oil passing passage in the rotation process of the crankshaft.

In some embodiments, the first oil deflector is an interference fit with a shoulder of the crankshaft.

In some embodiments, a second sealing structure is disposed between the first oil baffle and the upper bracket of the compressor.

In some embodiments, the oil guiding structure comprises a second collar arranged on a shaft shoulder of the crankshaft, a first groove is arranged on the second collar, the oil guiding structure further comprises a first bracket oil groove formed on the upper bracket, and the first bracket oil groove is communicated with the crankshaft oil pool;

in the process of crankshaft rotation, the first groove is communicated with the first support oil groove and guides lubricating oil in the first support oil groove to the first groove, and when the crankshaft rotates to the first groove and is communicated with the oil passing passage, the lubricating oil in the first groove is led out through the oil passing passage.

In some embodiments, the oil guiding structure comprises a second oil baffle arranged on the shaft shoulder of the crankshaft, a second groove is arranged on the second oil baffle, the oil guiding structure further comprises a second bracket oil groove arranged on the upper bracket, and the second bracket oil groove is communicated with the crankshaft oil pool;

in the process of crankshaft rotation, the second groove is communicated with the second bracket oil groove and guides lubricating oil in the second bracket oil groove to the second groove, and when the crankshaft rotates to the second groove and is communicated with the oil passing passage, the lubricating oil in the second groove is led out through the oil passing passage.

In some embodiments, the oil passage includes a first radial passage and a first axial passage, one end of the first radial passage communicates with the oil guide structure, the other end communicates with the first axial passage, and the first axial passage communicates with the back pressure chamber of the compressor.

In some embodiments, the oil passing passage includes a second radial channel, a second axial channel, a third radial channel, and a third axial channel, the second radial channel is connected with the second axial channel, the third radial channel, and the third axial channel in sequence, and the third axial channel is connected with a contact surface of the movable scroll and the upper bracket of the compressor, or the third axial channel is connected with end surfaces of the movable scroll and the fixed scroll.

According to another aspect of the present application, an embodiment of the present invention provides an air conditioner including the scroll compressor described above.

Compared with the prior art, the scroll compressor has at least the following beneficial effects:

the crankshaft is provided with an oil guiding structure, the oil guiding structure communicates the crankshaft oil pool with the oil passing passage once every time the crankshaft rotates for one circle, and lubricating oil in the crankshaft oil pool is led out by the oil guiding structure through the oil passing passage to be used for providing lubrication for friction pairs among parts of the compressor; in the process, along with the increase of the operating frequency of the compressor, in the same time, the times that the oil guide structure communicates the crankshaft oil pool with the oil passing passage are increased, and the oil supply amount is correspondingly increased; otherwise, the times are reduced, and the oil supply amount is reduced; therefore, the oil quantity requirements of the compressor under different frequencies can be effectively met, the oil quantity requirements of high and low frequencies can be synchronously covered by correlating the oil quantity with the operating frequency, oil supply is less when the operating frequency is low, and oil supply is more when the operating frequency is high; therefore, the invention realizes the matching of the oil supply quantity and the running frequency of the compressor, avoids the problem of dry grinding caused by insufficient oil supply and simultaneously avoids the problem of refrigeration capacity reduction caused by overlarge lubricating oil quantity.

On the other hand, the air conditioner provided by the invention is designed based on the scroll compressor, and the beneficial effects of the air conditioner refer to the beneficial effects of the scroll compressor, which are not described herein again.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a partial cross-sectional view of a scroll compressor provided in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a crankshaft in a scroll compressor according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view in another direction of the crankshaft of a scroll compressor according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an upper bracket of a scroll compressor according to an embodiment of the present invention;

FIG. 5 is another cross-sectional view of the upper bracket of a scroll compressor according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an alternative construction of a scroll compressor according to the present invention;

FIG. 7 is a cross-sectional view of an alternative construction of a scroll compressor according to the present invention;

FIG. 8 is a cross-sectional view of an alternative construction of a scroll compressor according to the present invention;

FIG. 9 is a cross-sectional view of an alternative construction of a scroll compressor according to the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at A;

FIG. 11 is a sectional view taken in the direction B-B in FIG. 9;

FIG. 12 is an enlarged view of the first oil sump in a scroll compressor assembly according to an embodiment of the present invention.

Wherein: 1. a crankshaft; 2. a crankshaft oil sump; 3. an oil passing path; 4. an upper bracket; 5. a back pressure chamber; 6. a movable scroll; 7. a fixed scroll; 11. an oil guiding structure; 31. a first radial passage; 32. a first axial passage; 111. a first collar; 112. a first oil passing notch; 301. a second radial passage; 302. a second axial passage; 303. a third radial passage; 304. a third axial passage; 1101. a first oil baffle plate; 1102. a second oil passing notch; 11001. a second collar; 11002. a first groove; 11003. a first rack oil sump.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment provides a scroll compressor, as shown in fig. 1, the scroll compressor includes a crankshaft 1, a crankshaft oil sump 2 and an oil passing passage 3, the crankshaft 1 is provided with an oil guiding structure 11; when the crankshaft 1 rotates to one end of the oil guide structure 11 and is communicated with the crankshaft oil pool 2, and the other end of the oil guide structure is communicated with the oil passing passage 3, the oil guide structure 11 guides the lubricating oil in the crankshaft oil pool 2 out through the oil passing passage 3; the operating frequency of the scroll compressor is positively correlated with the frequency at which the oil guide structure 11, the crank oil sump 2, and the oil passage 3 are connected.

Thus, with the structure, the crankshaft 1 is provided with the oil guiding structure 11, each time the crankshaft 1 rotates for one circle, the oil guiding structure 11 communicates the crankshaft oil pool 2 with the oil passage 3 once, and the oil guiding structure 11 guides the lubricating oil in the crankshaft oil pool 2 out through the oil passage 3 to lubricate friction pairs between parts of the compressor; in the process, along with the increase of the operating frequency of the compressor, the oil guide structure 11 increases the number of times of communicating the crankshaft oil pool 2 with the oil passing passage 3 in the same time, and the oil supply amount is correspondingly increased; otherwise, the times are reduced, and the oil supply amount is reduced; therefore, the oil quantity requirements of the compressor under different frequencies can be effectively met, the oil quantity requirements of high and low frequencies can be synchronously covered by correlating the oil quantity with the operating frequency, oil supply is less when the operating frequency is low, and oil supply is more when the operating frequency is high; therefore, the invention realizes the matching of the oil supply quantity and the running frequency of the compressor, avoids the problem of dry grinding caused by insufficient oil supply and simultaneously avoids the problem of refrigeration capacity reduction caused by overlarge lubricating oil quantity.

The scroll compressor provided by the embodiment further comprises a movable scroll 6, a fixed scroll 7, an upper bracket 4, a back pressure cavity 5 and the like, wherein the movable scroll 6 and the fixed scroll 7 are core components of the scroll compressor and are used for compressing gas; the upper bracket 4 is mainly used for supporting a shafting and a movable scroll 6, so that the rigidity of the whole machine is improved; a back pressure cavity 5 is arranged between the movable scroll 6 and the upper bracket 4, the main purpose is that when the movable scroll 6 and the fixed scroll 7 compress gas, the compressed gas in the movable scroll 6 and the fixed scroll has an axial force, no corresponding balance force is balanced, so the back pressure cavity 5 is added to ensure the stability of the movable scroll 6, the back pressure cavity 5 not only increases the back pressure, but also has the function of providing lubricating oil, and is positioned between the pump body and the crankshaft oil pool 2, and the lubricating oil flows from the crankshaft oil pool 2 to the back pressure cavity 5 and then to the pump body, so that each contact part has good lubricating effect; the crankshaft 1 is a power transmission part of the whole machine, and the operating frequency of the crankshaft 1 is the operating frequency of the compressor; the crankshaft oil sump 2 is located between the upper bracket 4, the orbiting scroll 6 and the crankshaft 1 and mainly provides a lubricant reservoir for supplying sufficient lubricant to the back pressure chamber 5 while lubricating the bearings.

In the embodiment, the oil guiding structure 11 has the following four different structural forms:

the first method comprises the following steps: as shown in fig. 2 and 3, the oil guiding structure 11 includes a first collar 111 disposed on a shoulder of the crankshaft 1, the first collar 111 is provided with a first oil passing notch 112, and the first oil passing notch 112 connects the crankshaft oil sump 2 with the oil passing passage 3 during rotation of the crankshaft 1.

In this way, in the process of rotating the crankshaft 1, after the first oil passing notch 112 connects the crankshaft oil pool 2 and the oil passing path 3, the lubricating oil in the crankshaft oil pool 2 is led out through the oil passing path 3 through the first oil passing notch 112, the led-out position can be any position where the compressor is easily worn, for example, the lubricating oil can be led into the back pressure cavity 5, the lubricating oil can be led onto the contact surface of the movable scroll 6 and the upper bracket 4, and the lubricating oil can be led onto the end surfaces of the movable scroll 6 and the fixed scroll 7. However, no matter which part is the specific position of the seed guiding, the first oil passing notch 112 connects the crankshaft oil pool 2 and the oil passing passage 3 once every time the crankshaft 1 rotates, that is, the oil supply quantity is matched with the frequency of the crankshaft 1, that is, the operating frequency of the compressor, so that the problem of dry grinding caused by insufficient oil supply is avoided, and meanwhile, the problem of reduction of the refrigerating capacity caused by too large lubricating oil quantity is also avoided, so that the oil supply quantity is matched with the operating frequency of the compressor.

The first seal structure is not particularly limited, and may be a seal ring or a gasket, and is mainly used to prevent friction between the first collar 111 and the upper bracket 4 of the compressor.

Secondly, as shown in fig. 8, the oil guiding structure 11 includes a first oil baffle 1101 sleeved on a shaft shoulder of the crankshaft 1, a second oil passing gap 1102 is formed on the first oil baffle 1101, and the second oil passing gap 1102 connects the crankshaft oil sump 2 with the oil passing passage 3 in the rotation process of the crankshaft 1; the first oil deflector 1101 is in interference fit with a shoulder of the crankshaft 1.

Compared with the oil guiding structure 11 with the first structure form, the oil guiding structure 11 is provided with the first oil baffle 1101, the second oil passing notch 1102 is formed in the first oil baffle 1101, the crankshaft oil pool 2 and the oil passing passage 3 are communicated through the second oil passing notch 1102, and the oil guiding structure 11 provided by the embodiment does not need to directly form a notch in the crankshaft 1, only the crankshaft 1 and the first oil baffle 1101 need to be processed separately, so that the oil guiding structure has the advantage of being simple to process.

In addition, a second sealing structure is provided between the first oil baffle 1101 and the upper bracket 4 of the compressor, and the form of the second sealing structure is not particularly limited, and may be a sealing ring or a gasket, and the second sealing structure is mainly used for avoiding friction between the first oil baffle 1101 and the upper bracket 4 of the compressor.

Thirdly, as shown in fig. 9-11, the oil guiding structure 11 includes a second collar 11001 disposed on the shaft shoulder of the crankshaft 1, a first groove 11002 is disposed on the second collar 11001, the oil guiding structure 11 further includes a first bracket oil groove 11003 disposed on the upper bracket 4, the first bracket oil groove 11003 is communicated with the crankshaft oil sump 2; specifically, the first recess 11002 has a hollow small hole structure with upper and lower portions closed.

After adopting the above structure, in the process of rotation of crankshaft 1, first recess 11002 communicates with first rack oil groove 11003 and guides the lubricating oil in first rack oil groove 11003 to first recess 11002, and when crankshaft 1 rotates to first recess 11002 and communicates with oil passing passage 3, the lubricating oil in first recess 11002 is led out through oil passage 3. That is to say: during rotation of the crankshaft 1, when the first groove 11002 runs to the first carrier oil groove 11003, the first groove 11002 stores oil; when the first groove 11002 with the lubricating oil stored runs to the oil passing passage 3, the oil passing passage 3 leads out the lubricating oil in the first groove 11002; the specific position of the leading-out can be different, for example, the lubricating oil stored in the first groove 11002 flows to the back pressure cavity 5 through the oil passage 3 under the action of the oil pressure of the lubricating oil, so that sufficient lubricating oil is provided for the compressor pump body.

Fourthly, the oil guiding structure 11 comprises a second oil baffle arranged on the shaft shoulder of the crankshaft 1, a second groove is arranged on the second oil baffle, the oil guiding structure 11 also comprises a second bracket oil groove arranged on the upper bracket, and the second bracket oil groove is communicated with the crankshaft oil pool; specifically, the second groove is of a hollow small hole structure with an upper closed end and a lower closed end.

After adopting above-mentioned structure, at the rotatory in-process of bent axle 1, the second recess communicates with second support oil groove and during lubricating oil drainage to the second recess in the second support oil groove, when bent axle 1 rotated to the second recess and through oil route 3 intercommunication, through oil route 3 with the lubricating oil in the second recess draw forth. That is to say: when the second groove runs to the second bracket oil groove in the rotation process of the crankshaft 1, the second groove stores oil; when the second groove with the lubricating oil runs to the oil passing passage 3, the oil passing passage 3 leads out the lubricating oil in the second groove; the specific location of the lead-out may be different, for example, the lubricating oil stored in the second groove flows to the end faces of the orbiting scroll 6 and the fixed scroll 7 through the oil passage 3 under its own oil pressure to provide lubrication for the orbiting scroll 6 and the fixed scroll 7.

In the embodiment, the oil passage 3 has a plurality of different structures, which mainly depend on the specific position of the friction pair needing lubrication, and the specific structures of two different oil passages 3 are described as follows:

first, as shown in fig. 1, 4 and 8, the oil passage 3 includes a first radial passage 31 and a first axial passage 32, the first radial passage 31 has one end communicating with the oil guide 11 and the other end communicating with the first axial passage 32, and the first axial passage 32 communicates with the back pressure chamber 5 of the compressor.

Of course, obliquely arranged channels are also possible, but for the feasibility of machining, straight channels are generally provided, and specifically, the first radial channel 31 is a channel arranged in the radial direction of the compressor, and the first axial channel 32 is a channel arranged in the axial direction of the compressor.

Secondly, as shown in fig. 6, the oil passing path 3 includes a second radial passage 301, a second axial passage 302, a third radial passage 303, and a third axial passage 304, the second radial passage 301 is connected to the second axial passage 302, the third radial passage 303, and the third axial passage 304 in this order, the third axial passage 304 is connected to a contact surface between the orbiting scroll 6 and the upper bracket 4 of the compressor, or the third axial passage 304 is connected to end surfaces of the orbiting scroll 6 and the fixed scroll 7.

Specifically, when the contact surface between the movable scroll 6 and the upper bracket 4 needs to be lubricated, the outlet of the third axial passage 304 is located at the contact surface between the movable scroll 6 and the upper bracket 4, and the lubricating oil sequentially passes through the second radial passage 301, the second axial passage 302, the third radial passage 303 and the third axial passage 304 to reach the contact surface between the movable scroll 6 and the upper bracket 4 to lubricate the contact surface; when the end surfaces of the movable scroll 6 and the fixed scroll 7 need to be lubricated, the outlet of the third axial passage 304 is located at the end surfaces of the movable scroll 6 and the fixed scroll 7, and lubricating oil sequentially passes through the second radial passage 301, the second axial passage 302, the third radial passage 303 and the third axial passage 304 to reach the end surfaces of the movable scroll 6 and the fixed scroll 7 to provide lubrication for the end surfaces.

In the scroll compressor provided by the embodiment, the oil supply amount supplied to the back pressure cavity or any one friction pair is increased along with the increase of the operation frequency of the compressor; on the contrary, along with the reduction of the running frequency of the compressor, the oil supply quantity is reduced, so that the scroll compressor can effectively meet the oil quantity requirements of the compressor under different frequencies.

Example 2

The present embodiment provides an air conditioner including the scroll compressor of embodiment 1.

In summary, it is easily understood by those skilled in the art that the advantageous technical features described above can be freely combined and superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The scroll compressor is characterized by comprising a crankshaft (1), a crankshaft oil pool (2) and an oil passage (3), wherein an oil guide structure (11) is arranged on the crankshaft (1); when the crankshaft (1) rotates to one end of the oil guide structure (11) to be communicated with the crankshaft oil pool (2) and the other end of the oil guide structure is communicated with the oil passage (3), the oil guide structure (11) guides lubricating oil in the crankshaft oil pool (2) out through the oil passage (3); the operating frequency of the scroll compressor is positively correlated with the frequency of the oil guide structure (11), the crankshaft oil pool (2) and the oil passage (3).

2. The scroll compressor of claim 1, wherein the oil guiding structure (11) comprises a first collar (111) arranged on a shoulder of the crankshaft (1), the first collar (111) is provided with a first oil passing notch (112), and the first oil passing notch (112) connects the crankshaft oil pool (2) and the oil passing passage (3) in a rotation process of the crankshaft (1).

3. A scroll compressor according to claim 2, wherein a first sealing structure is provided between the first collar (111) and the upper bracket (4) of the compressor.

4. The scroll compressor of claim 1, wherein the oil guiding structure (11) comprises a first oil baffle plate (1101) sleeved on a shaft shoulder of the crankshaft (1), a second oil passing notch (1102) is formed in the first oil baffle plate (1101), and the second oil passing notch (1102) connects the crankshaft oil pool (2) and the oil passing passage (3) in a rotation process of the crankshaft (1).

5. The scroll compressor of claim 4, wherein the first oil baffle plate (1101) is an interference fit with a shoulder of the crankshaft (1).

6. The scroll compressor of claim 4, wherein a second sealing structure is provided between the first oil baffle plate (1101) and an upper bracket (4) of the compressor.

7. The scroll compressor of claim 1, wherein the oil guiding structure (11) comprises a second collar (11001) arranged on a shaft shoulder of the crankshaft (1), a first groove (11002) is arranged on the second collar (11001), the oil guiding structure (11) further comprises a first bracket oil groove (11003) formed on the upper bracket (4), and the first bracket oil groove (11003) is communicated with the crankshaft oil pool (2);

in the process of rotation of the crankshaft (1), the first groove (11002) is communicated with the first support oil groove (11003) and guides lubricating oil in the first support oil groove (11003) to the first groove (11002), and when the crankshaft (1) rotates until the first groove (11002) is communicated with the oil passage (3), the oil passage (3) leads out the lubricating oil in the first groove (11002).

8. The scroll compressor of claim 1, wherein the oil guiding structure (11) comprises a second oil baffle plate arranged on a shaft shoulder of the crankshaft (1), a second groove is arranged on the second oil baffle plate, the oil guiding structure (11) further comprises a second bracket oil groove arranged on the upper bracket, and the second bracket oil groove is communicated with the crankshaft oil pool;

in the rotating process of the crankshaft (1), the second groove is communicated with the second support oil groove and guides lubricating oil in the second support oil groove to the second groove, and when the crankshaft (1) rotates to the second groove and is communicated with the oil passing passage (3), the oil passing passage (3) guides out the lubricating oil in the second groove.

9. A scroll compressor according to any one of claims 1 to 8, wherein the oil passage (3) comprises a first radial channel (31) and a first axial channel (32), one end of the first radial channel (31) is communicated with the oil guiding structure (11) and the other end is communicated with the first axial channel (32), and the first axial channel (32) is communicated with the back pressure chamber (5) of the compressor.

10. The scroll compressor according to any one of claims 1 to 8, wherein the oil passing passage (3) comprises a second radial passage (301), a second axial passage (302), a third radial passage (303) and a third axial passage (304), the second radial passage (301) is connected with the second axial passage (302), the third radial passage (303) and the third axial passage (304) in sequence, the third axial passage (304) is connected with a contact surface of a movable scroll (6) and an upper bracket (4) of the compressor, or the third axial passage (304) is connected with an end surface of the movable scroll (6) and a fixed scroll (7).

11. An air conditioner, characterized in that the air conditioner comprises a scroll compressor according to any one of claims 1 to 10.