CN215805190U - Compressor and air conditioner with same - Google Patents

Abstract

The application provides a compressor and an air conditioner with the same, and the compressor comprises an oil way structure, wherein the oil way structure comprises an oil storage space, an oil supply hole and an oil return hole; the oil supply hole is used for transferring the lubricating oil in the oil storage space to a structure to be lubricated; the oil return hole is used for guiding the lubricating oil in the oil storage space to flow out; the oil supply hole is positioned on the upper side of the oil return hole. According to the compressor and the air conditioner with the same, impurities can be prevented from reaching a position to be lubricated along with lubricating oil.

Description

Compressor and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a compressor and an air conditioner with the same.

Background

At present, friction heating occurs in a compressor during high-speed operation, resulting in a reduction in efficiency. Therefore, lubricating oil is introduced to the friction position to prevent wear of the compressor.

However, in the process of high-speed operation of the compressor, because the position of the oil supply hole of the upper bracket is flush with or lower than the oil return hole, impurities are easy to enter the end surfaces of the movable scroll disk and the static scroll disk along with lubricating oil through the oil supply hole, so that the movable scroll disk and the static scroll disk are abraded, long-term reliability of the compressor is not facilitated, and the efficiency of the compressor is reduced.

Therefore, how to provide a compressor capable of preventing impurities from reaching a position to be lubricated along with lubricating oil and an air conditioner having the same becomes a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the present invention is to provide a compressor and an air conditioner having the same, which can prevent impurities from reaching a position to be lubricated along with lubricating oil.

In order to solve the above problems, the present application provides a compressor, including an oil path structure, where the oil path structure includes an oil storage space, an oil supply hole, and an oil return hole; the oil supply hole is used for transferring the lubricating oil in the oil storage space to a structure to be lubricated; the oil return hole is used for guiding the lubricating oil in the oil storage space to flow out; the oil supply hole is positioned on the upper side of the oil return hole.

Further, the compressor includes an oil sump; lubricating oil in the oil pool can enter the oil storage space, and the oil return hole can guide the lubricating oil in the oil storage space to flow out and enter the oil pool.

Further, the oil return hole is formed in the side wall of the oil storage space, and the bottom edge of the oil return hole is flush with the bottom of the oil storage space.

Furthermore, in the vertical direction, the distance between the oil supply hole and the oil return hole is h; the aperture of the oil return hole is r; the distance from the oil supply hole to the bottom of the oil storage space is H; wherein H is more than or equal to H-r.

Further, the compressor also comprises a rotating shaft; an oil guide channel is arranged on the rotating shaft and is communicated with the oil pool and the oil storage space; the oil guide channel is used for guiding lubricating oil in the oil pool to enter the oil storage space.

Further, the compressor also comprises a pump body, and the pump body is used for driving lubricating oil in the oil pool to enter the oil storage space through the oil guide channel and reach a structure to be lubricated.

Further, the compressor also comprises a support structure and a compression structure; the compression structure is a structure to be lubricated; the support structure is used for supporting the compression structure, and the oil storage space is arranged in the support structure.

Further, the compression structure comprises a fixed scroll and a movable scroll which are meshed with each other; the oil supply hole is used for transferring the lubricating oil in the oil storage space to the contact surface of the fixed scroll and the movable scroll.

Furthermore, the oil circuit structure comprises an oil supply oil circuit, the oil supply hole can guide lubricating oil in the oil storage space to enter the oil supply oil circuit so as to be transmitted to a structure to be lubricated, a throttling structure is arranged in the oil supply oil circuit, and the throttling structure is used for throttling and depressurizing the lubricating oil passing through the oil supply oil circuit.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.

The application provides a compressor and have its air conditioner, impurity can sink in the bottom in oil storage space under the effect of gravity, then flows out through the oil gallery along with lubricating oil. And because the oil supply hole is positioned at the upper side of the oil return hole, in the oil return process, the lubricating oil carrying impurities from the oil return hole cannot enter the oil supply hole, so that the impurities can reach the position to be lubricated along with the lubricating oil, and the impurities can be prevented from reaching the position to be lubricated along with the lubricating oil.

Drawings

FIG. 1 is a cross-sectional view of a compressor according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a compressor according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of a compressor according to an embodiment of the present application;

fig. 4 is a cross-sectional view of a stent structure according to an embodiment of the present application.

The reference numerals are represented as:

1. an oil path structure; 11. an oil storage space; 111. an oil supply hole; 112. an oil return hole; 12. an oil guide channel; 13. an oil supply path; 131. a throttling arrangement; 132. a throttling channel; 14. an oil return path; 2. an oil sump; 31. an upper bracket; 32. a lower bracket; 321. a lower support ring; 4. a crankshaft; 51. a static scroll pan; 511. an oil sump; 52. a movable scroll pan; 53. a cross slip ring; 6. a pump body; 7. an exhaust pipe; 8. a sliding bearing; 9. a housing.

Detailed Description

Referring to fig. 1 to 4 in combination, a compressor includes an oil path structure 1, where the oil path structure 1 includes an oil storage space 11, an oil supply hole 111, and an oil return hole 112; the oil supply hole 111 is used for transferring the lubricating oil in the oil storage space 11 to a structure to be lubricated; the oil return hole 112 is used for guiding the lubricating oil in the oil storage space 11 to flow out; the oil supply hole 111 is positioned at the upper side of the oil return hole 112, and impurities sink to the bottom of the oil storage space 11 under the action of gravity and then flow out through the oil return hole 112 along with the lubricating oil; the oil return hole 112 is communicated to the lower part of the oil storage space 11; it is possible to prevent impurities from reaching the position to be lubricated along with the lubricating oil. Moreover, because the oil supply hole 111 is located above the oil return hole 112, the lubricating oil carrying impurities from the oil return hole 112 will not enter the oil supply hole 111 during the oil return process, so that the impurities will reach the position to be lubricated along with the lubricating oil.

Further, the compressor comprises an oil sump 2; lubricating oil in the oil pool 2 can enter the oil storage space 11, the oil return hole 112 can guide the lubricating oil in the oil storage space 11 to flow out and enter the oil pool 2, namely the lubricating oil enters the oil storage space 11 from the oil pool 2, one part of the lubricating oil in the oil storage space 11 reaches a structure to be lubricated through the oil supply hole 111, and the other part of the lubricating oil flows back to the oil pool 2 from the oil return hole 112; and the lubricating oil in the oil pool 2 can enter the oil storage space 11 and then circularly flow in turn.

Further, the oil return hole 112 is disposed on the side wall of the oil storage space 11, and the bottom edge of the oil return hole 112 is flush with the bottom of the oil storage space 11, that is, the lubricating oil deposited at the bottom of the oil storage space 11 under the action of gravity can flow out through the oil return hole 112, so as to prevent impurities from reaching the position to be lubricated.

Further, in the vertical direction, the distance between the oil supply hole 111 and the oil return hole 112 is h; the aperture of the oil return hole 112 is r; the distance from the oil supply hole 111 to the bottom of the oil storage space 11 is H; wherein H is more than or equal to H-r. Oil feed hole 111 sets up on the lateral wall of oil storage space 11, sets up on the lateral wall of oil storage space 11 as oil return hole 112 to when oil return hole 112's periphery and oil storage space 11's bottom parallel and level, make oil feed hole 111 be located oil return hole 112's top like this, the lower limb of oil feed hole 111 is located the top of oil return hole 112 top edge promptly, can effectually prevent that impurity from getting into oil feed hole 111, and then prevents that impurity from reaching and treats lubricated position. The compressor comprises a shell 9, and the oil sump 2 is located at the bottom of the shell 9.

Further, the compressor also includes a crankshaft 4; an oil guide channel 12 is arranged on the crankshaft 4, and the oil guide channel 12 is communicated with the oil pool 2 and the oil storage space 11; the oil guide passage 12 is used for guiding the lubricating oil in the oil pool 2 into the oil storage space 11. The oil guide passage 12 is provided inside the crankshaft 4 and extends in the axial direction of the crankshaft 4. The lubricating oil is supplied to the structure to be lubricated through the oil supply hole 111 under the high pressure in the oil storage space 11.

Further, the compressor also comprises a pump body 6, and the pump body 6 is used for driving lubricating oil in the oil pool 2 to enter the oil storage space 11 through the oil guide channel 12 and reach a structure to be lubricated. The pump body 6 is an oil pump, which is disposed at the lower end of the crankshaft 4 and can drive oil in the oil sump 2 to the oil guide passage 12.

Further, the compressor also comprises a support structure and a compression structure; the compression structure is a structure to be lubricated; the supporting structure is used for supporting the compression structure, and the oil storage space 11 is arranged in the supporting structure. The support structure comprises an upper support 31, the upper support 31 supports an orbiting scroll 52, an oil storage space 11 is arranged at the upper end of the upper support 31, and the upper end of the oil storage space 11 is provided with an opening. The oil supply hole 111 of the upper bracket 31 is higher than the oil return hole 112, so that the problem of abrasion caused by the fact that impurities enter the end faces of the movable and static scrolls 51 along with lubricating oil is avoided, and the reliability and the efficiency of the compressor are improved. The upper bracket 31 is provided with a sliding bearing 8; the sliding bearing 8 is sleeved outside the crankshaft 4. The oil storage space 11 is an oil storage groove 511 formed at the upper end of the upper bracket 31, and an oil guide groove 511 is further formed at the upper end of the upper bracket 31, the oil guide groove 511 extends outward along the outer periphery of the oil storage groove 511, and when the lubricating oil in the oil storage groove 511 is sufficient, the lubricating oil can reach the contact end surface of the upper bracket 31 and the movable disk through the oil guide groove 511 from the upper end of the oil storage groove 511 to lubricate the contact end surface.

Further, the compression structure includes a fixed scroll 51 and an orbiting scroll 52 engaged with each other; the oil supply hole 111 is used to transfer the lubricating oil in the oil storage space 11 to the contact surface between the fixed scroll 51 and the orbiting scroll 52. An oil groove 511 is formed in the surface, in contact with the movable scroll disk 52, of the fixed scroll disk 51, the oil supply hole 111 is communicated to the oil groove 511, lubricating oil is transferred to the contact surface of the fixed scroll disk 51 and the movable scroll disk 52, meanwhile, the oil supply hole 111 is higher than the oil return hole 112, the problem that impurities enter the end face of the movable scroll disk 51 through an oil supply channel due to the fact that the position, in which the oil supply hole 111 is formed, of the upper support frame 31 oil storage space 11 in the high-speed rotation process of the high-pressure cavity scroll compressor is flush with the oil return hole 112 or lower than the oil return hole 112 is solved, and therefore the movable scroll disk 51 and the fixed scroll disk 51 are abraded, the reliability of the compressor is improved, and the operation range of the compressor is widened. The orbiting scroll 52 is installed outside the crankshaft 4 through a bearing, an oil inlet is opened on the crankshaft 4, the position of the oil inlet corresponds to the position of the bearing, and the lubricating oil in the oil guide passage 12 enters the bearing through the oil inlet and then enters the oil storage space 11.

Further, the oil path structure 1 includes an oil supply path 13, the oil supply hole 111 can guide the lubricating oil in the oil storage space 11 to enter the oil supply path 13 to be transferred to a structure to be lubricated, a throttling structure 131 is disposed in the oil supply path 13, and the throttling structure 131 is used for throttling and depressurizing the lubricating oil passing through the oil supply path 13. The throttling structure 131 is a throttling pin, and can also be a throttling structure 131 such as a capillary tube, the oil supply oil path 13 comprises a throttling channel 132, the throttling pin is arranged in the throttling channel 132, lubricating oil is throttled and depressurized under the action of the throttling pin and then enters an oil groove 511 of the fixed scroll disk 51, so that the movable scroll disk 51 and the fixed scroll disk 51 are lubricated on contact surfaces; the oil return hole 112 in the oil storage space 11 of the upper bracket 31 is arranged at a position lower than the oil supply hole 111, and the lubricating oil returns to the bottom oil pool 2 through the oil return hole 112 and the oil return line 14. This prevents the high-pressure lubricating oil in the oil sump 2 from pushing the fixed scroll 51 and affecting the operation thereof. The throttle passage 132 is provided on the upper bracket 31 and extends in the vertical direction; and a connecting passage communicated with the oil groove 511 is provided on the fixed scroll 51, the connecting passage is communicated with the throttling passage 132, that is, the oil supply path comprises an oil supply hole 111, the throttling passage 132, the connecting passage and the oil groove 511 which are communicated in sequence; wherein an oil supply hole 111 and a throttle passage 132 are provided on the upper bracket 31, and a connection passage and oil are provided on the fixed scroll 51. The oil circuit comprises an oil return hole 112 and an oil return pipe which are communicated in sequence.

Lubricating oil enters the oil storage space 11 through the oil guide channel 12 of the crankshaft 4, impurities can enter the oil storage space 11 along with the lubricating oil, no impurities exist in the lubricating oil at the upper end of the oil storage space 11, and the lubricating oil enters the oil groove 511 of the fixed scroll 51 through the throttling channel 132; the impurities sink to the lower end of the oil storage space 11 under the action of gravity and then return to the bottom oil pool 2 along with the lubricating oil through an oil return pipe; because the oil return hole 112 in the oil storage space 11 of the upper bracket 31 is arranged at the bottom of the high-pressure oil pool 2, and the oil supply hole 111 is arranged at a high position h, impurities sink under the action of gravity and then return to the oil pool 2 through the oil return pipe, and cannot enter the end surface of the pump body 6 through the oil supply hole 111 and the throttling channel 132, the problem of abrasion caused by the fact that the impurities enter the end surfaces of the movable scroll disk 51 and the static scroll disk 51 through the oil return hole 112 and the throttling channel 132 in the oil circuit circulation process is effectively solved, and the reliability of the compressor is improved.

According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor. The compressor is a scroll compressor, and the scroll compressor mainly comprises a motor, an upper bracket 31, a lower bracket 32, a static scroll 51, a movable scroll 52, an oldham ring 53, a crankshaft 4, an exhaust pipe 7 and the like. The motor is fixed to the housing 9 by a shrink fit, and the upper bracket 31 is fixed to the housing 9 by eight spot welding. The movable scroll disk 52 and the fixed scroll disk 51 are oppositely arranged on the upper bracket 31 with a phase angle difference of 180 degrees, the movable scroll disk 52 moves under the driving of the crankshaft 4 and is engaged with the fixed scroll disk 51 to form a series of crescent closed cavities which are mutually isolated and continuously change in volume, and the fixed scroll disk 51 is fixed on the upper bracket 31 through a screw fastener. The lower bracket 32 is fixed to the lower support ring 321 by screws, and the lower support ring 321 is fixed to the housing 9 by spot welding. When the compressor runs, the motor drives the crankshaft 4 to rotate, the crank of the crankshaft 4 drives the movable scroll disk 52 to move, and the movable scroll disk 52 makes translational motion around the center of the crankshaft 4 with a fixed radius under the limitation of autorotation prevention of the cross slip ring 53. The crankshaft 4 rotates to drive the oil pump to rotate, oil is absorbed from the lower cover oil pool 2, lubricating oil passes through the oil pump to the crankshaft 4 oil guide channel 12 and enters the upper support 31 oil storage space 11 through the crankshaft 4 oil guide channel 12, in the oil storage space 11, high-pressure lubricating oil at the upper end of the oil storage space 11 passes through the oil supply hole 111 and is throttled and depressurized through the throttle pin, the high-pressure oil is depressurized to be medium-pressure oil and enters the fixed scroll oil groove 511 to lubricate the end face, the medium-pressure oil is discharged into the cavity from the exhaust port of the fixed scroll 51 and is discharged into the system from the exhaust port, and the lubricating oil is brought back by the system through the air suction port; the lubricating oil at the lower end of the high-pressure oil pool 2 returns to the bottom oil pool 2 through the oil return hole 112 of the upper bracket 31.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (10)

1. The compressor is characterized by comprising an oil way structure (1), wherein the oil way structure (1) comprises an oil storage space (11), an oil supply hole (111) and an oil return hole (112); the oil supply hole (111) is used for transferring lubricating oil in the oil storage space (11) to a structure to be lubricated; the oil return hole (112) is used for guiding lubricating oil in the oil storage space (11) to flow out; the oil supply hole (111) is positioned on the upper side of the oil return hole (112).

2. Compressor according to claim 1, characterized in that it comprises an oil sump (2); lubricating oil in the oil pool (2) can enter the oil storage space (11), and the oil return hole (112) can guide the lubricating oil in the oil storage space (11) to flow out and enter the oil pool (2).

3. The compressor according to claim 1, wherein the oil return hole (112) is provided on a side wall of the oil storage space (11), and a bottom edge of the oil return hole (112) is flush with a bottom of the oil storage space (11).

4. The compressor according to claim 2, wherein the oil supply hole (111) is spaced from the oil return hole (112) by a distance h in a vertical direction; the aperture of the oil return hole (112) is r; the distance between the oil supply hole (111) and the bottom of the oil storage space (11) is H; wherein H is more than or equal to H-r.

5. The compressor of claim 2, further comprising a crankshaft (4); an oil guide channel (12) is arranged on the crankshaft (4), and the oil guide channel (12) is communicated with the oil pool (2) and the oil storage space (11); the oil guide channel (12) is used for guiding lubricating oil in the oil pool (2) to enter the oil storage space (11).

6. The compressor according to claim 5, characterized in that it further comprises a pump body (6), said pump body (6) being adapted to drive the lubricating oil in said oil sump (2) through said oil guiding channel (12) into said oil storage space (11) and to said structure to be lubricated.

7. The compressor of claim 1, further comprising a bracket structure and a compression structure; the compression structure is the structure to be lubricated; the support structure is used for supporting the compression structure, and the oil storage space (11) is arranged in the support structure.

8. The compressor of claim 7, wherein the compression structure comprises a fixed scroll (51) and an orbiting scroll (52) which are engaged with each other; the oil supply hole (111) is used for transferring lubricating oil in the oil storage space (11) to a contact surface of the fixed scroll (51) and the movable scroll (52).

9. The compressor according to claim 1, wherein the oil path structure (1) comprises an oil supply path (13), the oil supply hole (111) can guide the lubricating oil in the oil storage space (11) into the oil supply path (13) to be transferred to a structure to be lubricated, a throttling structure (131) is arranged in the oil supply path (13), and the throttling structure (131) is used for throttling and depressurizing the lubricating oil passing through the oil supply path (13).

10. An air conditioner comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 9.

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