CN112377409A

CN112377409A - Air conditioner, compressor and pump body assembly

Info

Publication number: CN112377409A
Application number: CN202011395403.2A
Authority: CN
Inventors: 张心爱; 吴健; 王珺; 闫鹏举; 张大鹏
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-02-19

Abstract

The invention relates to an air conditioner, a compressor and a pump body assembly. The gleitbretter movably sets up in the activity inslot, and the one end butt of gleitbretter on the roller, and then utilizes roller and gleitbretter can be separated the compression chamber into high-pressure space and low pressure space. The exhaust flange is arranged on the cylinder, and an exhaust hole in the exhaust flange is communicated with the high-pressure space. The upper surface of the exhaust flange is provided with oil drainage holes, and the oil drainage holes penetrate through the lower surface of the exhaust flange, so that liquefied lubricating oil can enter the oil drainage holes and enter the movable groove through a lubricating oil way on the sliding sheet. On one hand, the liquefied lubricating oil is prevented from entering the compression cavity through the exhaust hole, so that the refrigerating capacity and the energy efficiency of the compressor are ensured. On the other hand, liquefied lubricating oil can flow into the movable groove through a lubricating oil way, and friction power consumption of the sliding sheet in the moving process of the movable groove is reduced.

Description

Air conditioner, compressor and pump body assembly

Technical Field

The invention relates to the technical field of compression structures, in particular to an air conditioner, a compressor and a pump body assembly.

Background

In the circulating air suction and exhaust process of the compressor, mixed gaseous lubricating oil can be discharged from an exhaust hole in an exhaust flange, and part of the gaseous lubricating oil in a refrigerant can be liquefied due to the fact that the mixed gaseous lubricating oil is in contact with the exhaust flange or the wall surface of other parts in the compressor, so that the liquefied lubricating oil easily flows back to a compression cavity of the compressor through the exhaust hole, the refrigerating capacity of the compressor is greatly reduced, and the energy efficiency of the compressor is seriously affected.

Disclosure of Invention

The invention provides an air conditioner, a compressor and a pump body assembly aiming at the problem that liquefied lubricating oil easily flows back to a compression cavity.

A pump body assembly comprises an air cylinder, a roller, a sliding vane and an exhaust flange, wherein a compression cavity is formed in the air cylinder, a movable groove is formed in the air cylinder, and the movable groove is communicated with the compression cavity; the roller is rotatably arranged in the compression cavity; the sliding sheet is movably arranged in the movable groove, one end of the sliding sheet is abutted against the roller, and the compression cavity is divided into a high-pressure space and a low-pressure space by the sliding sheet and the outer side wall of the roller; the exhaust flange is arranged on the cylinder, and an exhaust hole communicated with the high-pressure space is formed in the exhaust flange; the oil drain hole is formed in the upper surface of the exhaust flange and penetrates through the lower surface of the exhaust flange, the lubricating oil way is formed in the sliding piece, and the oil drain hole can be communicated with the movable groove through the lubricating oil way.

In one embodiment, the oil drainage hole comprises an oil collecting groove and a communicating hole, the oil collecting groove is arranged on the upper surface of the exhaust flange, the communicating hole is arranged on the bottom wall of the oil collecting groove and penetrates through the lower surface of the exhaust flange, and the oil collecting groove can be communicated with the lubricating oil path through the communicating hole.

In one embodiment, the oil collecting groove is an annular groove, and the exhaust hole is formed in an inner ring of the annular groove; or

The oil collecting groove is an arc-shaped groove, and the exhaust hole is formed in one side of the arc-shaped groove; or

The size of the oil sump tends to increase in the direction from the communication hole to the upper surface of the exhaust flange.

In one embodiment, the exhaust hole is formed in the upper surface of the exhaust flange, the exhaust hole and the oil drainage hole are arranged at intervals, and the position of the exhaust hole on the upper surface of the exhaust flange is higher than the position of the oil drainage hole on the upper surface of the exhaust flange.

In one embodiment, the sliding piece can move in the movable groove relative to the exhaust flange to drive the lubricating oil path to move between a first position and a second position, the lubricating oil path penetrates through the sliding piece and faces the top surface of the exhaust flange, and the oil drain hole penetrates through an opening in the lower surface of the exhaust flange and is located between the first position and the second position.

In one embodiment, the lubricating oil path includes a first oil guide hole, the first oil guide hole is opened on a top surface of the sliding vane facing the exhaust flange, and the first oil guide hole penetrates through a bottom surface of the sliding vane facing away from the exhaust flange.

In one embodiment, a distance L between the first oil guide hole and the roller is larger than a difference m between the diameter of the roller and the compression cavity.

In one embodiment, the relationship between the distance L between the first oil guide hole and the roller and the difference m between the diameter of the roller and the compression cavity is L & gt m +3 or L & gt m + 5.

In one embodiment, the lubricating oil path further includes a second oil guiding hole and a third oil guiding hole, the second oil guiding hole is disposed on one side surface of the sliding vane and is communicated with the first oil guiding hole, and the third oil guiding hole is disposed on the other side surface of the sliding vane opposite to the first oil guiding hole and is communicated with the first oil guiding hole.

In one embodiment, the size of the second oil guide hole tends to increase in a direction away from the first oil guide hole; or

The size of the third oil guide hole tends to increase in a direction away from the first oil guide hole.

In one embodiment, the pump body assembly further includes a valve cover, the exhaust flange is provided with a mounting cavity, the exhaust hole is formed in the inner wall of the mounting cavity, the oil drainage hole is formed in the bottom wall of the mounting cavity, and the valve cover is arranged in the mounting cavity and can be covered on the exhaust hole in an opening and closing manner.

A compressor, the compressor includes pump body subassembly and power spare as above, the roller eccentric settings is in on the power spare, the power spare is used for driving the roller rotates in the compression chamber.

In one embodiment, the power member is disposed above the pump body assembly.

An air conditioner comprising a compressor as described above.

According to the air conditioner, the compressor and the pump body assembly, the roller is arranged in the compression cavity of the air cylinder, and the roller is eccentrically arranged on the power part. The gleitbretter movably sets up in the activity inslot, and the one end butt of gleitbretter on the roller, and then utilizes roller and gleitbretter can be separated the compression chamber into high-pressure space and low pressure space. When the power part drives the roller to rotate in the compression cavity, the volumes of the low-pressure space and the high-pressure space are changed, and then the refrigerant is compressed. The exhaust flange is arranged on the cylinder, and an exhaust hole in the exhaust flange is communicated with the high-pressure space. The compressed refrigerant mixed with the gaseous lubricating oil can be discharged through the exhaust hole. When the refrigerant mixed with the gaseous lubricating oil after being discharged meets an exhaust flange or other parts, the refrigerant is liquefied into liquid lubricating oil. Because the oil drain hole has been seted up on the upper surface of exhaust flange, and the oil drain hole runs through the lower surface of exhaust flange for lubricating oil after the liquefaction can enter into the oil drain hole, and enters into the movable groove by the lubricated oil circuit on the gleitbretter. On the one hand, the liquefied lubricating oil is prevented from entering the compression cavity through the exhaust hole, so that the refrigerating capacity and the energy efficiency of the compressor are ensured, and the risk of abnormal shutdown of the compressor caused by excessive lubricating oil in the compression cavity is reduced. On the other hand, the liquefied lubricating oil can flow into the movable groove through the lubricating oil way, the contact positions between the lower surfaces of the lubricating slip sheet and the exhaust flange and between the inner walls of the slip sheet and the movable groove are achieved through the liquefied lubricating oil, the friction power consumption of the slip sheet in the moving process of the movable groove is reduced, and the effect of improving the energy efficiency of the compressor is achieved.

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 order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:

FIG. 1 is a schematic diagram of a compressor according to an embodiment;

FIG. 2 is a cross-sectional view of the pump body assembly of FIG. 1;

FIG. 3 is a schematic view of the pump body assembly of FIG. 2 without the exhaust flange;

FIG. 4 is a top plan view of the pump body assembly shown in FIG. 2;

FIG. 5 is an enlarged view of one embodiment at A in FIG. 4;

FIG. 6 is a cross-sectional view of the drain hole of FIG. 5;

FIG. 7 is an enlarged view of another embodiment at A in FIG. 4;

FIG. 8 is an enlarged view of a further embodiment at A in FIG. 4;

FIG. 9 is an enlarged view of one embodiment at B in FIG. 2;

FIG. 10 is an enlarged view of another embodiment shown at B in FIG. 2;

FIG. 11 is a graph showing the relationship between the movement of the vane, roller and cylinder of FIG. 2;

FIG. 12 is a schematic view of the slider shown in FIG. 2;

FIG. 13 is a cross-sectional view of one embodiment taken along line C-C of FIG. 12;

fig. 14 is a cross-sectional view of the alternate embodiment taken along line C-C of fig. 12.

Description of reference numerals:

10. the compressor comprises a compressor body 100, a power part 200, a pump body assembly 210, a cylinder 211, a compression cavity 212, a movable groove 213, a high-pressure space 214, a low-pressure space 215, an exhaust oblique notch 220, a roller 230, a sliding vane 231, a lubricating oil path 232, a first oil guide hole 233, a second oil guide hole 234, a third oil guide hole 240, an exhaust flange 241, an exhaust hole 242, an oil drain hole 243, an oil collecting groove 244, a communication hole 245, a mounting cavity 250, a main shaft 260, an elastic part 270, a valve cover 280, a connecting flange 300, a shell 310, a shell body 320, an upper cover 330 and a lower cover.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, a schematic structural diagram of a compressor 10 according to an embodiment of the present invention, the compressor 10 includes a power element 100 and a pump body assembly 200, and the power element 100 is used for enhancing power for the operation of the pump body assembly 200.

Referring to fig. 1, 2 and 3, in particular, the pump body assembly 200 includes a cylinder 210, a roller 220, a vane 230 and an exhaust flange 240. The air cylinder 210 is provided with a compression cavity 211, the air cylinder 210 is also provided with a movable groove 212, and the movable groove 212 is communicated with the compression cavity 211; the roller 220 is rotatably disposed in the compression chamber 211; the roller 220 is eccentrically disposed on the power member 100, and the power member 100 is used for driving the roller 220 to rotate in the compression cavity 211. The sliding piece 230 is movably disposed in the movable slot 212, one end of the sliding piece 230 abuts against the roller 220, and the outer sidewalls of the sliding piece 230 and the roller 220 divide the compression chamber 211 into a high pressure space 213 and a low pressure space 214; the exhaust flange 240 is arranged on the cylinder 210, and an exhaust hole 241 communicated with the high-pressure space 213 is formed in the exhaust flange 240; an oil drain hole 242 is formed in the upper surface of the exhaust flange 240, the oil drain hole 242 penetrates through the lower surface of the exhaust flange 240, a lubricating oil path 231 is formed in the slide piece 230, and the oil drain hole 242 can be communicated with the movable groove 212 through the lubricating oil path 231.

In the compressor 10 and the pump assembly 200, the roller 220 is disposed in the compression chamber 211 of the cylinder 210, and the roller 220 is eccentrically disposed on the power element 100. The sliding plate 230 is movably disposed in the movable slot 212, and one end of the sliding plate 230 abuts against the roller 220, so that the compression chamber 211 can be divided into a high pressure space 213 and a low pressure space 214 by the roller 220 and the sliding plate 230. When the power member 100 drives the roller 220 to rotate in the compression cavity 211, the refrigerant is gradually compressed into the high-pressure space 213 by the volume change between the low-pressure space 214 and the high-pressure space 213. The exhaust flange 240 is disposed on the cylinder 210, and the exhaust hole 241 of the exhaust flange 240 communicates with the high pressure space 213. The compressed refrigerant mixed with the gaseous lubricating oil can be discharged from the gas discharge hole 241. When the refrigerant mixed with the gaseous lubricant after being discharged meets the discharge flange 240 or other parts, the refrigerant is liquefied into liquid lubricant, and the liquid lubricant is accumulated around the discharge hole 241. At the end of the discharge, the pressure in compression cavity 211 is lower than the external pressure, and the liquid lubricating oil is easy to flow back into compression cavity 211 through discharge hole 241, thereby reducing the refrigerating capacity of compressor 10 and affecting the energy efficiency of compressor 10. In addition, when the lubricating oil in the compression chamber 211 is too much, the discharge pressure of the compression chamber 211 is easily increased sharply due to the hydraulic pressure problem, and the compressor 10 is stopped abnormally.

In the compressor 10 and the pump body assembly 200, the oil drain hole 242 is formed in the upper surface of the exhaust flange 240, and the oil drain hole 242 penetrates through the lower surface of the exhaust flange 240, so that the liquefied lubricating oil can enter the oil drain hole 242 and enter the movable groove 212 through the lubricating oil path 231 on the slide piece 230. On the one hand, the liquefied lubricating oil is prevented from entering the compression cavity 211 through the exhaust hole 241, so that the refrigerating capacity and the energy efficiency of the compressor 10 are ensured, and the risk of abnormal shutdown of the compressor 10 caused by excessive lubricating oil in the compression cavity 211 is reduced. On the other hand, the liquefied lubricant oil can flow into the movable groove 212 through the lubricant oil path 231, and the liquefied lubricant oil is used to realize the contact position between the lubricating vane 230 and the lower surface of the exhaust flange 240 and between the lubricating vane 230 and the inner wall of the movable groove 212, thereby reducing the friction power consumption of the lubricating vane 230 during the movement in the movable groove 212, and further achieving the effect of improving the energy efficiency of the compressor 10.

In one embodiment, pump body assembly 200 further includes a main shaft 250, roller 220 is eccentrically disposed on main shaft 250, and main shaft 250 is used for driving roller 220 to rotate in compression cavity 211. Wherein the power member 100 is used for driving the main shaft 250 to rotate. The provision of the main shaft 250 facilitates the rotation of the power element 100 within the compression chamber 211 by the main shaft 250 driving the roller 220. And because the roller 220 is eccentrically arranged on the main shaft 250, the volumes of the low-pressure space 214 and the high-pressure space 213 are changed in the rotating process of the roller 220, and the function of compressing the refrigerant is realized.

Referring to fig. 1, in one embodiment, the power member 100 is disposed above the pump body assembly 200. Because power piece 100 sets up in body subassembly top, and then when gaseous state lubricating oil met and become oil after the liquefaction of power piece 100, oil drips can drop on the upper surface of last exhaust flange 240, and then is convenient for flow to movable groove 212 in through draining hole 242 and lubricated oil circuit 231, realizes the lubrication to gleitbretter 230 activity in movable groove 212.

In this embodiment, the power member 100 is a motor, and the main shaft 250 is driven by the motor to rotate, so as to drive the roller 220 to rotate in the compression cavity 211.

Referring to fig. 2, 4 and 5, in an embodiment, the exhaust hole 241 is opened on the upper surface of the exhaust flange 240, and the exhaust hole 241 and the oil drain hole 242 are disposed at an interval. Specifically, the position of the exhaust hole 241 on the upper surface of the exhaust flange 240 is higher than the position of the oil drain hole 242 on the upper surface of the exhaust flange 240. Because the liquefied lubricating oil exists or drips on the upper surface of the exhaust flange 240, the position where the exhaust hole 241 is opened is higher than the position where the oil drain hole 242 is opened, so that the possibility that the liquefied lubricating oil enters the compression cavity 211 from the exhaust hole 241 can be reduced, and the liquefied lubricating oil can be ensured to effectively flow into the oil drain hole 242. In other embodiments, the opening position of the exhaust hole 241 and the opening position of the oil drainage hole 242 may also be located on the same plane.

In one embodiment, the oil drain hole 242 includes an oil collecting groove 243 and a communication hole 244, the oil collecting groove 243 is opened on the upper surface of the exhaust flange 240, the communication hole 244 is opened on the bottom wall of the oil collecting groove 243, the communication hole 244 penetrates through the lower surface of the exhaust flange 240, and the oil collecting groove 243 can communicate with the lubricating oil path 231 through the communication hole 244. The oil sump 243 is provided to facilitate collection of the liquefied lubricating oil, and further facilitate entry into the lubricating oil passage 231 through the communication hole 244, ensuring stability of entry of the liquefied lubricating oil into the lubricating oil passage 231.

Referring to fig. 6, in an embodiment, the size of the oil collecting groove 243 tends to increase from the communication hole 244 to the upper surface of the exhaust flange 240. And then make oil trap 243 open size on exhaust flange 240 upper surface great, and then be convenient for the lubricating oil after the liquefaction more enter oil trap 243, improve the efficiency that the lubricating oil after the liquefaction flows into in lubricating oil circuit 231, reduce the lubricating oil and enter the possibility in compression chamber 211 by exhaust hole 241. In the present embodiment, the size of the oil collecting groove 243 increases from the direction from the communication hole 244 to the upper surface of the exhaust flange 240, and the oil collecting groove 243 is a tapered groove.

Referring to fig. 7, in another embodiment, the oil collecting groove 243 is an arc-shaped groove, and the exhaust hole 241 is opened on one side of the arc-shaped groove. The liquefied lubricating oil can enter the arc-shaped groove conveniently, and the possibility that the liquefied lubricating oil enters the exhaust hole 241 is reduced.

Referring to fig. 8, in another embodiment, the oil collecting groove 243 is an annular groove, and the exhaust hole 241 is opened in an inner ring of the annular groove. Because the oil collecting groove 243 is opened around the exhaust hole 241, the lubricating oil on the upper surface of the exhaust flange 240 can be further prevented from entering the exhaust hole 241, and the stability of oil drainage by the oil drainage hole 242 is further improved.

In other embodiments, the oil collecting groove 243 may have a groove structure with other shapes as long as the liquefied lubricating oil can be easily flowed into the oil collecting groove 243.

Referring to fig. 9, in an embodiment, the oil collecting groove 243 may also be a circular hole, and the size of the cross section of the oil collecting groove 243 is larger than that of the communication hole 244, so that the oil drainage hole 242 has a stepped hole structure. In the present embodiment, the communication hole 244 is a circular hole, and the axis of the communication hole 244 is a vertical direction, thereby ensuring that the lubricant oil effectively flows onto the vane 230.

Referring to fig. 10, in another embodiment, the communication hole 244 is a circular hole, and the axis of the communication hole 244 is inclined, so that the lubricant oil flows to the vane 230 along the axial direction of the communication hole 244. In other embodiments, the communication hole 244 may also have a hole structure of other shapes as long as it can be realized that the lubricating oil flows to the vane 230 along the communication hole 244.

In an embodiment, the pump body assembly 200 further includes a valve cover 270, the exhaust flange 240 is formed with an installation cavity 245, the exhaust hole 241 is disposed on an inner wall of the installation cavity 245, the oil drain hole 242 is disposed on a bottom wall of the installation cavity 245, and the valve cover 270 is disposed in the installation cavity 245 and openably covers the exhaust hole 241. The valve cover 270 is provided to cover the exhaust hole 241 when the air is not exhausted, thereby preventing the lubricant or other substances from entering the exhaust hole 241.

Since the gaseous lubricating oil mixed in the refrigerant is retained in the mounting cavity 245 by the wall surface contacting the exhaust flange 240, a part of the gaseous lubricating oil is liquefied and dropped back to the mounting cavity 245 by contacting the wall surface of the other component, and a large amount of liquid lubricating oil is accumulated around the exhaust hole 241. When the pressure in the high-pressure space 213 becomes lower than the external pressure at the end of the exhaust hole 241, the liquid lubricating oil is easily sucked into the exhaust hole 241. By forming the oil drain hole 242 in the bottom wall of the mounting cavity 245, the lubricating oil can enter the oil drain hole 242, and the lubricating oil is prevented from being sucked or flowing into the exhaust hole 241.

In one embodiment, one side of the valve cover 270 is rotatably disposed on the exhaust flange 240. When exhausting, the side of the high-pressure refrigerant having the exhaust hole 241 pushes the valve cover 270 to rotate relative to the exhaust flange 240, so that the valve cover 270 releases the exhaust hole 241. After the exhaust is completed, the valve cover 270 can be rotated to cover the exhaust port.

Referring to fig. 2 and 3, in an embodiment, the cylinder 210 further has an exhaust bevel 215, and the exhaust hole 241 is communicated with the high pressure space 213 through the exhaust bevel 215. The exhaust oblique notch 215 can guide the compressed gas to the exhaust hole 241 more effectively, and the exhaust stability is improved. Specifically, the exhaust chamfer 215 opens proximate to the vane 230. In other embodiments, the exhaust chamfer 215 may also be omitted, with the exhaust hole 241 communicating directly with the high-pressure space 213.

Referring to fig. 2 and 4, in an embodiment, the sliding plate 230 can move in the movable slot 212 relative to the exhaust flange 240 to drive the lubricating oil path 231 to move between a first position and a second position, the lubricating oil path 231 penetrates through the sliding plate 230 and faces the top surface of the exhaust flange 240, and the oil drain hole 242 penetrates through an opening in the lower surface of the exhaust flange 240 and is located between the first position and the second position. In the present embodiment, since one end of the sliding piece 230 abuts against the roller 220, when the roller 220 rotates in the compression cavity 211, the sliding piece 230 can be pushed to move in the movable slot 212, so that the lubricating oil path 231 reciprocates between the first position and the second position. The first position is a position closest to the compression chamber 211 in the movement of the lubrication oil path 231, and the second position is a position farthest from the compression chamber 211 in the movement of the lubrication oil path 231.

Since the lubricating oil path 231 penetrates the sliding piece 230 toward the top surface of the exhaust flange 240, the opening of the oil drain hole 242 penetrating the lower surface of the exhaust flange 240 is located between the first position and the second position. And then make gleitbretter 230 at the in-process that removes, when lubricated oil circuit 231 removes to the position that corresponds the intercommunication with draining hole 242 for during the lubricated oil circuit 231 can effectively enter into to the lubricating oil circuit after the liquefaction, reduce the friction consumption of gleitbretter 230 in the removal process.

In an embodiment, an end of the sliding piece 230 opposite to the roller 220 abuts against the elastic member 260 (as shown in fig. 1), and an elastic direction of the elastic member 260 is a direction of the sliding piece 230 facing the roller 220. The slider 230, which is able to move by providing the elastic member 260, is more stably abutted against the roller 220, thereby improving the stability of separating the compression chamber 211 by the slider 230 and the roller 220. In this embodiment, the elastic member 260 is a spring. In other embodiments, the elastic member 260 may be another elastic member as long as it can ensure that the sliding piece 230 stably abuts against the roller 220 during the moving process.

Referring to fig. 2, 11 and 12, in an embodiment, the lubricating oil path 231 includes a first oil guiding hole 232, the first oil guiding hole 232 is disposed on a top surface of the sliding vane 230 facing the exhaust flange 240, and the first oil guiding hole 232 penetrates through the sliding vane 230 and faces away from a bottom surface of the exhaust flange 240. Because the first oil guiding hole 232 is opened on the top surface of the sliding vane 230, the lubricating oil leaked from the oil drainage hole 242 can effectively enter the first oil guiding hole 232, and the lubricating oil can flow to the ground of the sliding vane 230 along the first oil guiding hole 232, so as to lubricate the sliding vane 230 in the moving process in the moving groove 212.

Specifically, the axis of the first oil guiding hole 232 is disposed at equal intervals on two opposite sides of the sliding vane 230. Since the sliding plate 230 has a plate-shaped structure, the side surface of the sliding plate 230 has a plate-shaped structure. With the both sides face equidistance setting that the axis of first oil guide hole 232 and gleitbretter 230 carried on the back mutually, can avoid first oil guide hole 232 off-centre, and then guarantee the centrobaric stability of gleitbretter 230, and then guarantee gleitbretter 230 at the in-process that removes, the lubricating film thickness who forms between gleitbretter 230 and the movable groove 212 inner wall is even to make the gleitbretter 230 atress even, reduce gleitbretter 230 eccentric wear risk.

In other embodiments, the first oil guiding hole 232 may not be disposed at an equidistant position on two opposite side surfaces of the sliding vane 230, as long as the first oil guiding hole 232 can guide the lubricating oil to flow between the sliding vane 230 and the inner wall of the movable groove 212.

Referring to fig. 11 and 12, in an embodiment, a distance L between the first oil guide hole 232 and the roller 220 is greater than a difference m between a diameter of the roller 220 and the compression cavity 211. Specifically, the roller 220 is eccentrically disposed in the compression cavity 211, wherein a distance L between the first oil guide hole 232 and the roller 220 is greater than two times an eccentricity e of the roller 220 in the compression cavity 211. In the moving process of the sliding vane 230, the first oil guide hole 232 on the sliding vane 230 can be driven to move towards the compression cavity 211. Through controlling the position of the first oil guiding hole 232, it can be ensured that the first oil guiding hole 232 does not compress the compression cavity 211 at any position of the movement of the sliding sheet 230, and the possibility that lubricating oil enters the compression cavity 211 from the first oil guiding hole 232 is avoided.

In the present embodiment, a relationship between a distance L between the first oil guide hole 232 and the roller 220 and a difference m between the diameter of the roller 220 and the compression chamber 211 is L > m + 3. The first oil guide hole 232 can be always communicated with the movable groove 212 and cannot be communicated with the compression cavity 211, so that the effective sealing distance between the first oil guide hole 232 and the compression cavity 211 is ensured, and the risk of leakage of lubricating oil from the first oil guide hole 232 to the compression cavity 211 is reduced. Further, a relationship between a distance L between the first oil guide hole 232 and the roller 220 and a difference m between the diameter of the roller 220 and the compression chamber 211 is L > m + 5. Further ensure that the first oil guide hole 232 is always communicated with the movable groove 212 and not communicated with the compression cavity 211, and reduce the risk of lubricating oil leaking to the compression cavity 211.

Referring to fig. 11, the position of the axis of the first oil guiding hole 232 or the position of the axis of the first oil guiding hole 232 periodically reciprocates with the sliding vane 230, and the axis of the first oil guiding hole 232 has two extreme operating positions, i.e., the distance between the first oil guiding hole and the roller 220 is L1 and L2, respectively. In the present embodiment, the oil release hole 242 is located at any position between L1 and L2 so that the first oil guide hole 232 can communicate with the oil release hole 242 during movement. When the sliding vane 230 slides back and forth, the oil drain hole 242 and the first oil guide hole 232 are dislocated, so that the lubricating oil can flow to the top surface of the sliding vane 230, and lubrication between the sliding vane 230 and the exhaust flange 240 is realized. After the first oil guide hole 232 moves to be overlapped and communicated with the oil drain hole 242, the lubricating oil can effectively flow into the first oil guide hole 232 and flow to the bottom surface of the sliding vane 230 along the first oil guide hole 232, and lubrication of the bottom surface of the sliding vane 230 in the moving process is achieved. Further, the oil release hole 242 is provided at a position equidistant from L1 and L2.

Referring to fig. 2 and 13, in an embodiment, the lubricating oil path 231 further includes a second oil guiding hole 233 and a third oil guiding hole 234, the second oil guiding hole 233 is disposed on one side surface of the sliding vane 230 and is communicated with the first oil guiding hole 232, and the third oil guiding hole 234 is disposed on the other side surface of the sliding vane 230 opposite to the first oil guiding hole 232 and is communicated with the first oil guiding hole 232. Due to the plate-like structure of the slider 230, one side and the opposite side of the slider 230 are one surface and the opposite surface of the slider 230. Because the second oil guide hole 233 and the third oil guide hole 234 are both communicated with the first oil guide hole 232, the lubricating oil can further flow into the second oil guide hole 233 and the third oil guide hole 234 from the first oil guide hole 232 and flow between two opposite side surfaces of the sliding vane 230 and the inner wall of the movable groove 212, thereby realizing a comprehensive lubricating effect on the sliding vane 230 in the movement process.

Optionally, the axis of the second oil guiding hole 233 is equidistant from the top surface and the bottom surface of the sliding vane 230, so that the gravity center offset of the sliding vane 230 caused by the second oil guiding hole 233 is avoided, the thickness of the lubricating oil film formed between the sliding vane 230 and the inner wall of the movable groove 212 in the reciprocating operation process is uniform, the stress of the sliding vane 230 is uniform, and the eccentric wear risk of the sliding vane 230 is reduced.

Specifically, the axis of the second oil guide hole 233 intersects the axis of the first oil guide hole 232. In the present embodiment, the axis of the second oil guide hole 233 is perpendicular to the axis of the first oil guide hole 232. The gravity center offset of the sliding sheet 230 caused by the second oil guide hole 233 is further avoided, the uniform stress of the sliding sheet 230 is ensured, and the eccentric wear risk of the sliding sheet 230 is reduced.

Optionally, the axis of the third oil guiding hole 234 is equidistant from the top surface and the bottom surface of the sliding vane 230, so that the gravity center offset of the sliding vane 230 caused by the third oil guiding hole 234 can be avoided, the thickness of the lubricating oil film formed between the sliding vane 230 and the inner wall of the movable groove 212 in the reciprocating operation process is uniform, the stress of the sliding vane 230 is uniform, and the eccentric wear risk of the sliding vane 230 is reduced.

Specifically, the axis of the third oil guide hole 234 intersects the axis of the first oil guide hole 232. In the present embodiment, the axis of the third oil guide hole 234 is perpendicular to the axis of the first oil guide hole 232. Further, the third oil guide hole 234 is coaxially disposed with the second oil guide hole 233. The gravity center offset of the sliding sheet 230 caused by the third oil guide hole 234 can be further avoided, the uniform stress of the sliding sheet 230 is ensured, and the eccentric wear risk of the sliding sheet 230 is reduced.

As shown in fig. 13, in one embodiment, the size of the second oil guide hole 233 tends to increase in a direction away from the first oil guide hole 232. By providing the second oil guide hole 233 as a tapered hole, it is possible to facilitate ensuring that the lubricating oil flows from the second oil guide hole 233 to between the side surface of the vane 230 and the inner wall of the movable groove 212.

In one embodiment, the size of the third oil guide hole 234 tends to increase in a direction away from the first oil guide hole 232. By providing the third oil guide hole 234 as a tapered hole, it is possible to facilitate to ensure that the lubricating oil flows from the third oil guide hole 234 to between the side surface of the vane 230 and the inner wall of the movable groove 212.

As shown in fig. 14, in another embodiment, the second oil guide hole 233 may also be a circular hole. The third oil guide hole 234 may also be a circular hole, so long as it is convenient to guide the lubricating oil to one side surface of the sliding vane 230 through the second oil guide hole 233, and guide the lubricating oil to the other opposite side surface of the sliding vane 230 through the third oil guide hole 234.

In other embodiments, the axis of the second oil guide hole 233 is oriented obliquely downward to facilitate the lubricant oil to flow out of the second oil guide hole 233 by its own weight. The axis of the third oil guide hole 234 faces obliquely downward, so that the lubricating oil can flow out of the third oil guide hole 234 under the action of its own weight. In other embodiments, the second oil guide hole 233 and the third oil guide hole 234 may have hole structures of other shapes as long as the lubricating shaft in the first oil guide hole 232 can be guided between the side surface of the vane 230 and the inner wall of the movable groove 212.

Referring to fig. 1 and fig. 2, in an embodiment, the pump body assembly 200 further includes a connecting flange 280, and the connecting flange 280 is disposed on a side of the cylinder 210 facing away from the exhaust flange 240. The support arrangement for the cylinder 210 and the exhaust flange 240 is facilitated by the arrangement of the connecting flange 280. Specifically, the connection flange 280 is connected to the exhaust flange 240 such that the cylinder 210, the roller 220, and the vane 230 are interposed between the connection flange 280 and the exhaust flange 240.

Referring to fig. 1, in an embodiment, the compressor 10 further includes a housing 300, and the pump body assembly 200 and the power member 100 are disposed in the housing 300. Specifically, the housing 300 includes a housing body 310, an upper cover 320 and a lower cover 330, the upper cover 320 and the lower cover 330 are respectively disposed on the top side and the bottom side of the housing body 310 to seal the housing body 310, and the pump body assembly 200 and the power member 100 are disposed in the housing body 310. Wherein, the space between the lower cover 330 and the pump body assembly 200 forms an oil storage chamber for storing lubricating oil.

In the present embodiment, the compressor 10 is a rotary compressor.

In an embodiment, the air conditioner includes the compressor 10 in any of the above embodiments, and the compressor 10 is utilized to realize a compression cycle of a refrigerant in a refrigeration system in the air conditioner. In other embodiments, the compressor 10 may also be applied to other products such as refrigerators and freezers.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A pump body assembly, characterized in that it comprises:

the air cylinder is provided with a compression cavity and a movable groove, and the movable groove is communicated with the compression cavity;

a roller rotatably disposed within the compression chamber;

the sliding piece is movably arranged in the movable groove, one end of the sliding piece is abutted against the roller, and the compression cavity is divided into a high-pressure space and a low-pressure space by the sliding piece and the outer side wall of the roller; and

the exhaust flange is arranged on the cylinder, and an exhaust hole communicated with the high-pressure space is formed in the exhaust flange; the oil drain hole is formed in the upper surface of the exhaust flange and penetrates through the lower surface of the exhaust flange, the lubricating oil way is formed in the sliding piece, and the oil drain hole can be communicated with the movable groove through the lubricating oil way.

2. The pump body assembly according to claim 1, wherein the oil drain hole includes an oil sump opened on an upper surface of the exhaust flange and a communication hole opened on a bottom wall of the oil sump and penetrating a lower surface of the exhaust flange, the oil sump being communicable with the lubricating oil passage through the communication hole.

3. The pump body assembly according to claim 2, wherein the oil collection groove is an annular groove, and the exhaust hole opens in an inner ring of the annular groove; or

4. The pump body assembly according to claim 1, wherein the vent hole is formed in an upper surface of the vent flange, the vent hole is spaced apart from the oil drain hole, and a position of the vent hole in the upper surface of the vent flange is higher than a position of the oil drain hole in the upper surface of the vent flange.

5. The pump body assembly according to any one of claims 1 to 4, wherein the sliding piece is movable in the movable groove relative to the exhaust flange to move the lubricating oil path between a first position and a second position, the lubricating oil path extends through the sliding piece toward a top surface of the exhaust flange, and the opening of the oil drain hole extending through a lower surface of the exhaust flange is located between the first position and the second position.

6. The pump block assembly according to any one of claims 1 to 4, wherein the lubricating oil passage includes a first oil guide hole, the first oil guide hole is opened on a top surface of the vane facing the exhaust flange, and the first oil guide hole penetrates the vane to face away from a bottom surface of the exhaust flange.

7. The pump body assembly according to claim 6, wherein a spacing L between the first oil guide hole and the roller is larger than a difference m between a diameter of the roller and the compression cavity.

8. The pump body assembly according to claim 7, wherein a relationship between a pitch L between the first oil guide hole to the roller and a difference m between a diameter of the roller and the compression chamber is L > m +3 or L > m + 5.

9. The pump assembly according to claim 6, wherein the lubricating oil path further includes a second oil guide hole and a third oil guide hole, the second oil guide hole is formed in one side surface of the sliding piece and communicated with the first oil guide hole, and the third oil guide hole is formed in the other side surface of the sliding piece opposite to the first oil guide hole and communicated with the first oil guide hole.

10. The pump body assembly according to claim 9, wherein the size of the second oil guide hole tends to increase in a direction away from the first oil guide hole; or

11. The pump body assembly according to any one of claims 1 to 4, further comprising a valve cover, wherein a mounting cavity is formed on the exhaust flange, the exhaust hole is formed in an inner wall of the mounting cavity, the oil drain hole is formed in a bottom wall of the mounting cavity, and the valve cover is arranged in the mounting cavity and can be covered on the exhaust hole in an openable manner.

12. A compressor, characterized in that the compressor comprises:

the pump body assembly of any one of claims 1-11; and

the power part is arranged on the roller in an eccentric mode and used for driving the roller to rotate in the compression cavity.

13. The compressor of claim 12, wherein the power member is disposed above the pump body assembly.

14. An air conditioner characterized in that it comprises a compressor according to claim 12 or 13.