Air conditioner compressor air cylinder body

By setting up lubricating oil passages and opening/closing components on the cylinder block of the air conditioning compressor, the entry of lubricating oil into the compression chamber is controlled, which solves the problems of friction loss between the sliding vanes and the eccentric rotor and lubricating oil waste, and achieves the effects of high-efficiency lubrication and long service life.

CN223724849UActive Publication Date: 2025-12-26NINGBO SHUNDA POWDER METALLURGY IND CO LTD
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Patent Information

Application Number
CN202520167166.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-12-26
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

In existing air conditioning compressors, the direct contact structure between the vanes and the eccentric rotor results in significant frictional losses, and the entry of lubricating oil into the compression chamber affects normal operation, making it difficult to meet the requirements of long-term use.

Method used

A lubricating oil passage is provided on the cylinder body, and a valve and opening/closing assembly are installed in the lubricating oil passage. The opening/closing assembly controls the entry of lubricating oil into the compression chamber. When the slide moves, the opening/closing assembly selectively opens the valve to allow lubricating oil to enter the compression chamber for lubrication. When the slide moves in the opposite direction, the valve automatically resets and closes the lubricating oil passage.

Benefits of technology

It effectively reduces friction loss, extends service life, and prevents excessive lubricating oil from entering the compression chamber, thus avoiding disruption to normal operation, saving resources, and achieving a balance between efficient lubrication and normal working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an air conditioner compressor air cylinder body, and belongs to the technical field of air conditioner accessories. The lubricating oil channel communicated with the compression cavity is formed in the cylinder body, the valve is arranged in the lubricating oil channel, meanwhile, the sliding way is formed in the cylinder body so that the sliding piece can slide, in addition, the communicating channel is formed between the sliding way and the lubricating oil channel so that the opening and closing assembly can be installed, and the opening and closing assembly is selectively connected with the valve. A gap is formed between the opening and closing assembly and the valve, so that when the eccentric rotor in the compression cavity pushes the sliding piece to move in the slide way, the sliding piece drives the opening and closing assembly to move by a preset distance and then is connected with the valve and opens the valve, and therefore the lubricating oil channel is opened, and otherwise the lubricating oil channel is closed; the lubricating device can lubricate contact parts among structural parts in the compression cavity, prolong the service life, shorten the opening time of the valve, avoid the problem that excessive lubricating oil affects normal operation and causes resource waste, and is beneficial to popularization and use.
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Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner accessory technical field, concretely relates to a kind of air conditioner compressor cylinder block. BACKGROUND

[0002] Air conditioner compressor as the core component of air conditioning equipment, can be compressed by the operation of its motor, realize temperature regulation by the change of gas volume, therefore, the use performance of air conditioner compressor is directly related to the normal use of air conditioning equipment, industry needs to continuously improve air conditioner compressor to improve its use performance.

[0003] At present, the existing air conditioner compressor on the market usually includes cylinder block, eccentric rotor and moving piece, the cylinder block is provided with compression cavity, the eccentric rotor is rotatably installed in the compression cavity, and the moving piece is slidably arranged on the cylinder block and extends into the compression cavity at one end and abuts against the eccentric rotor, the compression cavity is divided into two chambers with variable volume by the eccentric rotor and the moving piece, one is the inlet chamber connected with the air inlet, and the other is the exhaust chamber connected with the air outlet, the size of the inlet chamber and the exhaust chamber is changed by the rotation of the eccentric rotor, so as to realize the suction, compression and discharge of air. As disclosed in patent CN217950684U, an air conditioner compressor cylinder includes a cylinder body with a cavity, the cavity has a first mounting groove, an eccentric rolling body is rollably arranged in the cavity and can roll along the wall surface of the cavity, one end of a sliding sheet is slidably arranged in the first mounting groove, the other end of the sliding sheet is close to the eccentric rolling body, the end of the sliding sheet close to the eccentric rolling body has a second mounting groove, and a telescopic assembly is telescopically arranged in the second mounting groove, the telescopic assembly includes a rolling shaft which is rotatably in contact with the wall surface of the eccentric rolling body, the rolling shaft is rotated in the cavity to change the space of the cavity, thereby realizing air suction, compression and exhaust to meet the demand of compressed gas. In addition, the rolling shaft of the telescopic assembly at the end of the sliding sheet contacts the eccentric rolling body, converting the original sliding friction between the eccentric rolling body and the sliding sheet into rolling friction, thereby prolonging the service life of the sliding sheet. Although the above structure can reduce friction loss, the two are still in direct contact, and the rotation of the rolling shaft at the end of the sliding sheet will still cause wear, although the service life is prolonged, but the time is limited, and it is difficult to meet the demand of long-term use. SUMMARY

[0004] In view of the above problems existing in the prior art, the present application aims to provide an air conditioner compressor cylinder body, which is characterized in that a lubricating oil channel is formed in the cylinder body and communicates with the compression chamber, and a valve is arranged in the lubricating oil channel, and an opening and closing assembly of the valve extends into the sliding channel of the cylinder body for mounting the sliding vane, so that the opening and closing of the valve can be realized by the sliding vane when the sliding vane slides, that is, when the eccentric rotor presses the sliding vane, the sliding vane realizes the opening of the valve through the opening and closing assembly, and the lubricating oil in the lubricating oil channel enters the compression chamber to lubricate the contact structures in the compression chamber, thereby reducing the abrasion, and when the eccentric rotor releases the sliding vane, the opening and closing assembly is separated from the valve, the valve is automatically reset and closed to avoid the problem of resource waste caused by too much oil entering the compression chamber.

[0005] The specific technical solutions are as follows:

[0006] The air conditioner compressor cylinder body comprises a cylinder body, a sliding vane and a pressing spring, the cylinder body has a circular compression chamber, an eccentric rotor is rotatably installed in the compression chamber, a sliding channel is formed in the cylinder body and extends along the radial direction of the compression chamber, one end of the sliding vane is slidably arranged in the sliding channel, the other end of the sliding vane is pressed against the eccentric rotor, a pressing spring is arranged in the sliding channel and presses against the one end of the sliding vane arranged in the sliding channel, and the cylinder body is further provided with a valve and an opening and closing assembly, a lubricating oil channel is formed in the cylinder body, one end of the lubricating oil channel communicates with the compression chamber, the other end of the lubricating oil channel is connected with an external oil tank, the valve is arranged in the lubricating oil channel, and a communication passage is arranged between the valve and the one end of the sliding channel where the pressing spring is arranged.

[0007] The air conditioner compressor cylinder body comprises a cylinder body, a sliding vane and a pressing spring, the cylinder body has a circular compression chamber, an eccentric rotor is rotatably installed in the compression chamber, a sliding channel is formed in the cylinder body and extends along the radial direction of the compression chamber, one end of the sliding vane is slidably arranged in the sliding channel, the other end of the sliding vane is pressed against the eccentric rotor, a pressing spring is arranged in the sliding channel and presses against the one end of the sliding vane arranged in the sliding channel, and the cylinder body is further provided with a valve and an opening and closing assembly, a lubricating oil channel is formed in the cylinder body, one end of the lubricating oil channel communicates with the compression chamber, the other end of the lubricating oil channel is connected with an external oil tank, the valve is arranged in the lubricating oil channel, and a communication passage is arranged between the valve and the one end of the sliding channel where the pressing spring is arranged.

[0008] The air conditioner compressor cylinder body comprises a cylinder body, a sliding vane and a pressing spring, the cylinder body has a circular compression chamber, an eccentric rotor is rotatably installed in the compression chamber, a sliding channel is formed in the cylinder body and extends along the radial direction of the compression chamber, one end of the sliding vane is slidably arranged in the sliding channel, the other end of the sliding vane is pressed against the eccentric rotor, a pressing spring is arranged in the sliding channel and presses against the one end of the sliding vane arranged in the sliding channel, and the cylinder body is further provided with a valve and an opening and closing assembly, a lubricating oil channel is formed in the cylinder body, one end of the lubricating oil channel communicates with the compression chamber, the other end of the lubricating oil channel is connected with an external oil tank, the valve is arranged in the lubricating oil channel, and a communication passage is arranged between the valve and the one end of the sliding channel where the pressing spring is arranged.

[0009] The air conditioner compressor cylinder body comprises a cylinder body, a sliding vane and a pressing spring, the cylinder body has a circular compression chamber, an eccentric rotor is rotatably installed in the compression chamber, a sliding channel is formed in the cylinder body and extends along the radial direction of the compression chamber, one end of the sliding vane is slidably arranged in the sliding channel, the other end of the sliding vane is pressed against the eccentric rotor, a pressing spring is arranged in the sliding channel and presses against the one end of the sliding vane arranged in the sliding channel, and the cylinder body is further provided with a valve and an opening and closing assembly, a lubricating oil channel is formed in the cylinder body, one end of the lubricating oil channel communicates with the compression chamber, the other end of the lubricating oil channel is connected with an external oil tank, the valve is arranged in the lubricating oil channel, and a communication passage is arranged between the valve and the one end of the sliding channel where the pressing spring is arranged.

[0010] The air conditioner compressor cylinder body has the following beneficial effects.

[0011] The air conditioner compressor cylinder body has the following beneficial effects.

[0012] The air conditioner compressor cylinder body has the following beneficial effects.

[0013] The air conditioner compressor cylinder body has the following beneficial effects.

[0014] The air conditioner compressor cylinder body has the following beneficial effects.

[0015] The air conditioner compressor cylinder body has the following beneficial effects.

[0016] The air conditioner compressor cylinder body has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The air conditioner compressor cylinder body has the following beneficial effects.

[0018] Figure 2 The air conditioner compressor cylinder body has the following beneficial effects.

[0019] Figure 3 The air conditioner compressor cylinder body has the following beneficial effects.

[0020] In the drawings: 1, cylinder body; 11, compression cavity; 12, sliding channel; 13, lubricating oil channel; 14, communication passage; 15, air inlet; 16, air outlet; 17, fixing hole; 18, positioning hole; 131, first passage; 132, second passage; 2, sliding vane; 3, abutting spring; 4, eccentric rotor; 5, valve; 51, valve plug; 52, return spring; 511, pushing block; 6, opening and closing assembly. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following embodiments are combined with the accompanying drawings to illustrate the utility model. Figure 1 to the accompanying drawings Figure 3 The technical solution of the utility model is described in detail, but the following content is not a limitation of the utility model.

[0022] Figure 1 The structure diagram of an embodiment of the cylinder body of the air conditioner compressor of the utility model; Figure 2 The cross-sectional view of an embodiment of the cylinder body of the air conditioner compressor of the utility model in one state; Figure 3 The cross-sectional view of an embodiment of the cylinder body of the air conditioner compressor of the utility model in another state. As shown in the drawings, Figure 1 , Figure 2 and Figure 3 The cylinder body of the air conditioner compressor provided by the embodiment includes: a cylinder body 1, a sliding vane 2, an abutting spring 3, a valve 5 and an opening and closing assembly 6.

[0023] Specifically, the cylinder body 1 has a circular compression cavity 11, which facilitates the rotation of the eccentric rotor 4 in the compression cavity 11 to contact the cavity wall at any position of the compression cavity 11, thereby providing conditions for subsequent compression of gas. At this time, an eccentric rotor 4 is rotatably installed in the compression cavity 11, the outer wall of the eccentric side of the eccentric rotor 4 is attached to the cavity wall of the compression cavity 11, and a sliding channel 12 is formed on the cylinder body 1 along the radial direction of the compression cavity 11. Meanwhile, one end of the sliding vane 2 is slidably arranged in the sliding channel 12, and the other end of the sliding vane 2 is abutted against the eccentric rotor 4, so that the sliding vane 2 and the eccentric rotor 4 divide the compression cavity 11 into two spaces, one space as an air inlet chamber and the other space as a compression cavity 11, meeting the use requirements of air intake, compression and air exhaust. In addition, an abutting spring 3 is arranged in the sliding channel 12, and the abutting spring 3 abuts against one end of the sliding vane 2 in the sliding channel 12. The abutting spring 3 provides a pre-tightening force for the sliding vane 2 to contact the eccentric rotor 4, ensuring that the two spaces formed do not communicate to cause compression failure, meeting the normal use requirements.

[0024] And, on the cylinder body 1 is also provided with a lubricating oil channel 13, at this time, the lubricating oil channel 13 is connected with the compression chamber 11, the other end of the lubricating oil channel 13 is connected with the external oil tank, so that the lubricating oil in the external oil tank can enter into the compression chamber 11 through the lubricating oil channel 13, to provide lubrication for the connecting parts of the components in the compression chamber 11, to prolong the service life of the structure. In addition, the valve 5 is arranged in the lubricating oil channel 13, and the valve 5 controls the opening and closing of the lubricating oil channel 13, to ensure the lubrication and avoid too much lubricating oil entering into the compression chamber 11 to affect the normal use. And, on the cylinder body 1 and between the valve 5 and the one end of the slide 12 provided with the abutting spring 3 is also provided with a communication channel 14, the communication channel 14 has a certain depth in the length direction of the slide 12, to provide conditions for the larger moving stroke of the opening and closing assembly 6. At this time, the opening and closing assembly 6 is arranged in the communication channel 14, and one end of the opening and closing assembly 6 is connected with the one end of the slide 2 in the slide 12, so that the movement of the slide 2 can drive the opening and closing assembly 6 to move, and the other end of the opening and closing assembly 6 is selectively connected with the valve 5, so that the opening and closing assembly 6 can drive the valve 5 to open the lubricating oil channel 13. In addition, a gap is provided between the opening and closing assembly 6 and the valve 5, so that the opening and closing assembly 6 is connected with the valve 5 only after the slide 2 drives the opening and closing assembly 6 to move a predetermined stroke, preferably, when the slide 2 moves to the end of the terminal state, the opening and closing assembly 6 is connected with the valve 5, and after the slide 2 moves a small stroke in the opposite direction, the opening and closing assembly 6 is separated from the valve 5, so that the valve 5 is opened for a very short time when the slide 2 moves each time, to avoid too much lubricating oil entering into the compression chamber 11 to affect the normal use, to meet the lubrication demand and prolong the service life, to maintain the normal working state, to avoid the waste of lubricating oil resources, and to make the structure design more reasonable.

[0025] More specifically, the lubricating oil passage 13 for the lubricating oil to pass through further comprises a first channel 131 and a second channel 132. At this time, the first channel 131 is arranged parallel to the slide 12, so that the moving direction of the subsequent valve 5 can be consistent with the moving direction of the slide 2, and the two are better adapted, avoiding the problem of needing a complex structure transmission. In addition, the second channel 132 is arranged perpendicular to the first channel 131, so that there is a corner between the first channel 131 and the second channel 132, which provides conditions for the subsequent valve 5 to open or close the communication with the second channel 132 when sliding in the first channel 131. In addition, the valve 5 is arranged between the first channel 131 and the second channel 132, so that the valve 5 can open or close the communication between the first channel 131 and the second channel 132, realizing the opening and closing control of the lubricating oil passage 13. In addition, the communication passage 14 communicates with the first channel 131, so that the opening and closing assembly 6 in the communication passage 14 can act on the valve 5. In addition, the connection between the second channel 132 and the first channel 131 is arranged in a staggered manner with the connection between the communication passage 14 and the first channel 131, and the connection between the second channel 132 and the first channel 131 is located on the side close to the compression chamber 11, so that the channel of the second channel 132 communicating with the compression chamber 11 is only controlled by the valve 5, and will not be affected by the connection passage and the opening and closing assembly 6, avoiding the problem of lubricating oil leakage.

[0026] More specifically, the valve 5 further comprises a valve plug 51 and a return spring 52. At this time, the valve plug 51 is slidingly arranged in the first channel 131 and located at the connection between the first channel 131 and the second channel 132, so that when the valve plug 51 moves to the side of the connection between the first channel 131 and the second channel 132 close to the compression chamber 11, the channel of the second channel 132 communicating with the compression chamber 11 can be blocked, thereby realizing the closing of the lubricating oil passage 13, and when the valve plug 51 moves to the side of the second channel 132 away from the compression chamber 11, the channel of the second channel 132 communicating with the compression chamber 11 is opened, realizing the opening of the lubricating oil passage 13. In addition, the first channel 131 further comprises a return spring 52 at the end away from the communication with the compression chamber 11, and at this time, the return spring 52 is pressed against the valve plug 51, so that after the valve plug 51 moves to the side away from the compression chamber 11, the valve plug 51 can be automatically reset under the action of the return spring 52, meeting the use requirement that the lubricating oil passage 13 is in a closed state under normal circumstances.

[0027] More specifically, an extension block 511 extending into the communication passage 14 is arranged on the outer wall of the end of the valve plug 51 pressed against the return spring 52, and the extension block 511 is in selective contact with the opening and closing assembly 6, that is, when the slide 2 moves the opening and closing assembly 6, the opening and closing assembly 6 can push the valve plug 51 to slide in the first channel 131 through the extension block 511, thereby realizing the opening or closing of the lubricating oil passage 13, and also providing conditions for the selective connection between the opening and closing assembly 6 and the valve plug 51.

[0028] More specifically, the opening and closing assembly 6 for driving the valve plug 51 to act includes a lever, at this time, one end of the lever is fixed to one end of the slide 2 in the slide way 12, and the other end of the lever extends to the side of the push block 511 close to the compression cavity 11, so that the movement of the slide 2 can smoothly drive the lever to move, that is, the lever moves with the slide 2, and the lever can contact the push block 511 after moving a certain idle stroke, thereby pushing the valve plug 51 to move, realizing the opening of the lubricating oil channel 13. In addition, when the slide 2 moves reversely, the lever can first leave the push block 511, so that the valve plug 51 is automatically reset under the action of the reset spring 52 to close the lubricating oil channel 13, avoiding the problem of excessive lubricating oil entering to affect normal operation and cause resource waste, and the structure design is more reasonable.

[0029] More specifically, the cylinder body 1 is also provided with an air inlet 15 and an exhaust port 16, at this time, the air inlet 15 and the exhaust port 16 are both communicated with the compression cavity 11 and are located on both sides of the slide way 12, so that when the eccentric rotor 4 and the slide 2 divide the compression cavity 11 into two spaces, one space is communicated with the air inlet 15 and the other space is communicated with the exhaust port 16, meeting the requirements of air intake, compression and exhaust. Moreover, the lubricating oil channel 13 is located on the side of the cylinder body 1 provided with the air inlet 15, that is, when the eccentric rotor 4 compresses the slide 2 to the final position, the air inlet is the largest, at this time the lubricating oil channel 13 is opened, and the lubricating oil is sucked into the compression cavity 11, and when the eccentric rotor 4 passes the slide 2, the air inlet gradually shrinks, at this time the lubricating oil channel 13 is closed, and the eccentric rotor 4 gradually moves to the position of the lubricating oil channel 13, so that the eccentric rotor 4 can first contact the lubricating oil, reducing wear and prolonging service life.

[0030] More specifically, a plurality of fixing holes 17 are formed on the cylinder body 1, at this time, the plurality of fixing holes 17 are arranged in a ring array around the center of the compression cavity 11, realizing the uniform distribution of the plurality of fixing holes 17 on the cylinder body 1, providing conditions for the subsequent connection of the cylinder cover.

[0031] More specifically, a plurality of fixing holes 17 are formed on the cylinder body 1, at this time, the plurality of fixing holes 17 are arranged in a ring array around the center of the compression cavity 11, realizing the uniform distribution of the plurality of fixing holes 17 on the cylinder body 1, providing conditions for the subsequent connection of the cylinder cover.

[0032] More specifically, the diameter of the air inlet 15 on the cylinder body 1 is set to be larger than the diameter of the exhaust port 16, so that a large amount of air can be taken in and compressed efficiently, thereby improving the use performance of the air conditioner compressor.

[0033] The air conditioner compressor cylinder body provided by the embodiment comprises a cylinder body 1, a sliding vane 2, a pressing spring 3, a valve 5 and an opening and closing assembly 6; a lubricating oil channel 13 communicating with a compression cavity 11 is formed on the cylinder body 1, and the valve 5 is arranged in the lubricating oil channel 13; a sliding channel 12 is formed on the cylinder body 1 for the sliding vane 2 to slide; a communication channel 14 is arranged between the sliding channel 12 and the lubricating oil channel 13 to install the opening and closing assembly 6; the opening and closing assembly 6 is selectively connected with the valve 5; a space is arranged between the opening and closing assembly 6 and the valve 5; when the eccentric rotor 4 in the compression cavity 11 pushes the sliding vane 2 to move in the sliding channel 12, the sliding vane 2 drives the opening and closing assembly 6 to move a predetermined distance, then the opening and closing assembly 6 is connected with the valve 5 and opens the valve 5, so as to open the lubricating oil channel 13; conversely, the lubricating oil channel 13 is closed; the contact parts between the structural parts in the compression cavity 11 can be lubricated, the service life is prolonged, the opening time of the valve 5 is reduced, too much lubricating oil does not affect the normal operation, and the problem of resource waste is avoided, so the air conditioner compressor cylinder body is conducive to popularization and use.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model; for those skilled in the art, it should be realized that the obtained solutions of equivalent replacement and obvious changes of the utility model specification and drawing contents should be contained in the protection scope of the utility model.

Claims

1. An air conditioner compressor cylinder body, comprising a cylinder body, a sliding vane and a pressing spring, the cylinder body has a circular compression cavity, an eccentric rotor is rotatably installed in the compression cavity, a sliding channel is formed on the cylinder body along the radial direction of the compression cavity, one end of the sliding vane is slidably arranged in the sliding channel, the other end of the sliding vane is pressed on the eccentric rotor, the pressing spring is arranged in the sliding channel and presses on the one end of the sliding vane in the sliding channel, characterized in that, The cylinder body is provided with a lubricating oil channel, one end of the lubricating oil channel is communicated with the compression cavity, the other end of the lubricating oil channel is connected with an external oil storage tank, a valve is arranged in the lubricating oil channel, a communication passage is arranged on the cylinder body between the valve and one end of the slide channel provided with the abutting spring, an opening and closing assembly is arranged in the communication passage, one end of the opening and closing assembly is connected with one end of the sliding sheet in the slide channel, the other end of the opening and closing assembly is selectively connected with the valve, and a space is arranged between the opening and closing assembly and the valve.

2. The air conditioner compressor cylinder barrel according to claim 1, characterized by, The lubricating oil channel comprises a first channel and a second channel, the first channel is arranged in parallel with the slide channel, the second channel is arranged perpendicularly to the first channel, the valve is arranged between the first channel and the second channel, the communication passage is communicated with the first channel, the connection position of the second channel and the first channel is arranged in a staggered manner with the connection position of the communication passage and the first channel, and the connection position of the second channel and the first channel is located on the side close to the compression cavity.

3. The air conditioner compressor cylinder barrel according to claim 2, wherein The valve comprises a valve plug and a reset spring, the valve plug is arranged in the first channel and located at the connection position of the first channel and the second channel, the reset spring is arranged in the first channel away from the end communicated with the compression cavity, and the reset spring abuts against the valve plug.

4. The air conditioner compressor cylinder barrel according to claim 3, wherein The valve plug is provided with a pushing block on the outer wall of the end abutting against the reset spring, the pushing block extends into the communication passage.

5. The air conditioner compressor cylinder barrel according to claim 4, wherein The opening and closing assembly comprises a pushing sheet, one end of the pushing sheet is fixed on one end of the sliding sheet in the slide channel, the other end of the pushing sheet extends to the pushing block and is located on the side of the pushing block close to the compression cavity.

6. The air conditioner compressor cylinder barrel according to claim 1, wherein The cylinder body is provided with an air inlet and an air outlet, the air inlet and the air outlet are communicated with the compression cavity and are respectively located on the two sides of the slide channel, and the lubricating oil channel is located on the side of the cylinder body provided with the air inlet.

7. The air conditioner compressor cylinder barrel according to claim 1, wherein The cylinder body is provided with a plurality of fixing holes, the plurality of fixing holes are arranged in a ring array around the center of the compression cavity.

8. The air conditioner compressor cylinder barrel according to claim 1, wherein The cylinder body is further provided with a positioning hole matched with a cylinder cover.

9. The air conditioner compressor cylinder barrel according to claim 6, wherein The caliber of the air inlet is larger than the caliber of the air outlet.