CN216842222U - Scroll compressor and air conditioner - Google Patents

Abstract

The utility model provides a scroll compressor, air conditioner, scroll compressor wherein including moving whirlpool dish, quiet whirlpool dish, the base plate that moves whirlpool dish is kept away from one side of quiet whirlpool dish is equipped with the keyway, still includes the cross sliding ring, the cross sliding ring has the key, the key install in the keyway in order to prevent move the rotation of whirlpool dish, it has the first oil passageway of drawing to construct on the whirlpool dish to move, it draws the oil passageway to construct the second on the cross sliding ring move the translation in-process of whirlpool dish, lubricating oil in the upper bracket oil pond can intermittently via the second draws oil passageway, first oil passageway and gets into move the outer peripheral region department of the fitting surface of whirlpool dish and quiet whirlpool dish. According to the utility model discloses, lubricating oil in the upper bracket oil bath can intermittently get into move fitting surface department between whirlpool dish and the quiet whirlpool dish, when effectively increasing lubricated reduction friction work, can also effectively prevent because lubricating oil draws the phenomenon that the whirlpool dish that moves that oil channel communicates probably to lead to always topples takes place.

Description

Scroll compressor and air conditioner

Technical Field

The utility model belongs to the technical field of the compressor design, concretely relates to scroll compressor, air conditioner.

Background

Scroll compressors are widely used in the fields of refrigeration air conditioners, heat pumps and the like due to the characteristics of high efficiency, small size, light weight, stable operation and the like. Generally, a scroll compressor is composed of a sealed housing, a fixed scroll, a movable scroll, a bracket, a crankshaft, an anti-rotation mechanism oil supply device and a motor, wherein molded lines of the movable scroll and the fixed scroll are both spiral, the movable scroll is eccentrically installed relative to the fixed scroll by 180 degrees, and a plurality of crescent-shaped spaces are formed between the movable scroll and the fixed scroll. When the movable scroll plate does non-autorotation rotary translation with the center of the fixed scroll plate as a rotation center and a certain rotation radius, the outer ring crescent space continuously moves towards the center, at the moment, the refrigerant is gradually pushed to the center space, the volume of the refrigerant is continuously reduced, the pressure is continuously increased until the refrigerant is communicated with the central exhaust hole, and the high-pressure refrigerant is discharged out of the pump body, so that the compression process is completed.

In the operation process of the compressor, the motor can drive the crankshaft to rotate all the time, the movable disc and the rotating crankshaft translate all the time, the moving process can cause the end faces of the movable disc and the fixed disc to rub all the time, if the end faces are not lubricated by the refrigerant oil at the moment, the end faces are abnormally abraded, the power consumption of the compressor is increased, and the refrigerant oil is required to be cooled and lubricated at the moment. The scroll compressor is provided with an oil path, the oil in an oil pool of the upper support is led to the end face of a movable static disc through the upper support and the static disc, and in order to prevent a large amount of possible lubricating oil from being sprayed out when the movable disc inclines, the part of the throttling screw is required to be added to reduce the oil leading amount, so that the movable disc is prevented from overturning, and the structure makes the structural design become complex and the assembly more troublesome.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a scroll compressor, air conditioner can overcome among the scroll compressor of correlation technique and move the whirlpool dish and the lubricated oil duct between the quiet whirlpool dish need set up the throttling component and throttle and prevent that the driving disk from toppling and lead to the compressor structure complicated, the inconvenient not enough of equipment.

In order to solve the problem, the utility model provides a scroll compressor, including the opposition move whirlpool dish, quiet whirlpool dish, the base plate that moves whirlpool dish is kept away from one side of quiet whirlpool dish is equipped with the keyway, still includes the cross sliding ring, the cross sliding ring has the key, the key install in order to prevent in the keyway move the rotation of whirlpool dish, it has the first oil guide channel of drawing to construct on the whirlpool dish to move, it draws oil channel to have the second to construct on the cross sliding ring move the translation in-process of whirlpool dish, lubricating oil in the upper bracket oil sump can intermittently via the second draws oil channel, first oil guide channel to get into move the outer peripheral region department of the fitting surface of whirlpool dish and quiet whirlpool dish.

In some embodiments, an inlet of the first oil guide channel is located on a groove wall of the key groove, an outlet of the second oil guide channel is located on a wall body of the key corresponding to the inlet, and the outlet and the inlet can be intermittently communicated and closed during the translation of the movable scroll.

In some embodiments, the scroll compressor further includes an upper bracket, the upper bracket oil sump is configured at a side of the upper bracket facing the orbiting scroll, and a third oil guide passage is further configured on the upper bracket, and the lubricating oil in the upper bracket oil sump enters the second oil guide passage through the third oil guide passage.

In some embodiments, the outlet position of the third oil introducing passage has an oil reservoir; and/or the third oil guide passage comprises a third radial oil passage extending along the radial direction of the upper support and a third axial oil passage extending along the axial direction of the upper support.

In some embodiments, the second oil introducing passage includes a second axial oil passage that communicates with the oil reservoir and extends in the axial direction of the oldham ring, a first horizontal oil passage that intermittently communicates with the first oil introducing passage, a fourth axial oil passage that is parallel to the second axial oil passage, and a second radial oil passage that communicates the second axial oil passage and the fourth axial oil passage.

In some embodiments, a groove wall of the key groove is configured with a first sunken groove, and the first oil guide channel inlet is positioned in the first sunken groove.

In some embodiments, a second sinking groove is configured on a side of a base plate of the orbiting scroll facing the fixed scroll, and the first oil introducing passage communicates the first sinking groove and the second sinking groove.

In some embodiments, the first oil introducing passage includes a first radial oil passage communicating with the first sunk groove and extending in a radial direction of the orbiting scroll, and a first axial oil passage communicating with the second sunk groove and extending in an axial direction of the orbiting scroll.

In some embodiments, the key has two, and the key grooves are correspondingly provided in two.

The utility model also provides an air conditioner, including foretell scroll compressor.

The utility model provides a pair of scroll compressor, air conditioner accompanies the translation operation of whirlpool dish moves, lubricating oil in the upper bracket oil bath can intermittently get into move fitting surface department between whirlpool dish and the quiet whirlpool dish, when effectively increasing lubricated work of reducing friction, can also effectively prevent because lubricating oil draws the phenomenon that the whirlpool dish that moves that oil channel communicates always and probably leads to topples takes place.

Drawings

Fig. 1 is a schematic view of an internal structure of a scroll compressor according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of FIG. 1, in which arrows indicate the flow direction (one side) of the lubricating oil;

FIG. 3 is a top view of the orbiting scroll of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a top view of the oldham ring of FIG. 1;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is a top view of the upper bracket of FIG. 1;

fig. 9 is a cross-sectional view of D-D in fig. 8.

The reference numerals are represented as:

1. an air suction pipe; 2. an upper cover; 3. a static scroll pan; 4. a movable scroll plate; 401. a first sink tank; 402. a keyway; 403. a first radial oil passage; 404. a first axial oil passage; 405. a second sink tank; 5. a cross slip ring; 501. a first horizontal oil passage; 502. a fourth axial oil passage; 503. a second radial oil passage; 504. a second axial oil passage; 505. a key; 6. an upper bracket; 601. a third axial oil passage; 602. a third radial oil passage; 603. an oil storage tank; 6A, an upper bracket oil pool; 8. a counterbalance; 9. a crankshaft; 10. a motor; 11. a housing; 12. a lower support ring; 13. a lower bracket; 14. an oil pump; 15. a thrust plate; 16. a lower cover; 17. a rotor; 18. and (4) exhausting the gas.

Detailed Description

Referring to fig. 1 to 9 in combination, specifically to fig. 1, the scroll compressor mainly includes a motor 10, an upper bracket 6, a lower bracket 13, a fixed scroll 3, a movable scroll 4, an oldham ring 5, a crankshaft 9, and the like, the motor 10 is fixed on a housing 11 by a heat jacket, and the upper bracket 6 is fixed on the housing 11 by eight spot welding. The movable scroll disk 4 and the fixed scroll disk 3 are oppositely arranged on an upper bracket 6 with a phase angle difference of 180 degrees, the movable scroll disk 4 moves under the driving of a crankshaft 9 and is engaged with the fixed scroll disk 3 to form a series of crescent closed containing cavities which are isolated from each other and continuously change in volume, the fixed scroll disk 3 is fixed on the upper bracket 6 through a screw fastener, a lower bracket 13 is fixed on a lower support ring 12 through a screw, and the lower support ring 12 is fixed on a shell 11 through spot welding. When the compressor runs, the motor 10 drives the crankshaft 9 to rotate, the crank of the crankshaft 9 drives the movable scroll disk 4 to move, and the movable scroll disk 4 makes translational motion around the center of the crankshaft 9 with a fixed radius under the anti-autorotation limit of the cross slip ring 5. Refrigerant entering from the air suction pipe is sucked into a crescent air suction cavity formed by the movable scroll disk 4 and the fixed scroll disk 3, is discharged from an exhaust hole of the fixed scroll disk 3 after being compressed, enters a cavity between the upper cover 2 and the fixed scroll disk 3, enters a cavity between the upper bracket 6 and the motor 10 through an exhaust groove of the fixed scroll disk 3 and the upper bracket 6, partially enters the lower end of the motor 10 through a through-flow groove between the motor 10 and the shell 11, and finally, high-pressure exhaust refrigerant is discharged out of the compressor from an exhaust pipe 18.

A key groove 402 is arranged on one side of the base plate of the movable scroll 4, which is far away from the fixed scroll 3, the cross slip ring 5 is provided with a key 505, the key 505 is arranged in the key groove 402 to prevent the rotation of the movable scroll 4, a first oil guiding channel is constructed on the movable scroll 4, a second oil guiding channel is constructed on the cross slip ring 5, and during the translation process of the movable scroll 4, lubricating oil in the upper bracket oil pool 6A can intermittently enter an outer circumferential area (which is a low-pressure area) of a matching surface of the movable scroll 4 and the fixed scroll 3 through the second oil guiding channel and the first oil guiding channel. In the technical scheme, along with the translational motion of the movable scroll disk 4, the lubricating oil in the upper support oil pool 6A can intermittently enter the matching surface between the movable scroll disk 4 and the fixed scroll disk 3, so that the lubricating oil can be effectively increased, the friction work can be effectively reduced, the phenomenon that the movable scroll disk topples possibly caused by the fact that the lubricating oil guiding channel is always communicated can be effectively prevented, the structure is simple, the assembly is easy, and the cost is low.

In some embodiments, the inlet of the first oil guiding channel is located on the wall of the key groove 402, and the outlet of the second oil guiding channel is located on the wall of the key 505 corresponding to the inlet, so that during the translational motion of the orbiting scroll 4, the relative position between the outlet and the inlet is changed due to the change of the positions of the key 505 and the key groove 402 along with the translational motion, thereby enabling the outlet and the inlet to be intermittently communicated and closed. In the technical scheme, the change and the on-off of the flow guiding oil flow are realized through the change of the relative position of the outlet and the inlet caused by the change of the relative position of the cross slip ring 5 in the translation process of the movable scroll disk 4, the corresponding throttling component, the control component and the like do not need to be independently arranged, the structure of the compressor is simplified, and the design and manufacturing cost can be reduced.

The upper bracket oil pool 6A is configured on one side of the upper bracket 6 facing the movable scroll disk 4, a third oil guiding channel is further configured on the upper bracket 6, lubricating oil in the upper bracket oil pool 6A enters the second oil guiding channel through the third oil guiding channel, and the third oil guiding channel is configured on the upper bracket 6, so that a corresponding oil guiding pipe structure is not required to be separately arranged, and the structure is simplified and the assembly is more convenient.

In some embodiments, an oil storage groove 603 is formed at an outlet of the third oil guide channel, so that lubricating oil can be temporarily stored, and the oil guide efficiency of the second oil guide channel and the first oil guide channel is ensured; specifically, the third oil guiding channel includes a third radial oil channel 602 extending along the radial direction of the upper support 6 and a third axial oil channel 601 extending along the axial direction of the upper support 6, and the second oil guiding channel includes a second axial oil channel 504 communicating with the oil storage tank 603 and extending along the axial direction of the cross slip ring 5, a first horizontal oil channel 501 intermittently communicating with the first oil guiding channel, a fourth axial oil channel 502 parallel to the second axial oil channel 504, and a second radial oil channel 503 communicating with the second axial oil channel 504 and the fourth axial oil channel 502, so that the lubricating oil is more efficiently guided in the third oil guiding channel and the second oil guiding channel.

In some embodiments, a groove wall of the key groove 402 is configured with a first sunken groove 401, and the first oil guide channel inlet is located in the first sunken groove 401. The through flow area of first heavy groove 401 is greater than the through flow area of the entry of first oil channel of drawing, so can prolong the second draw the oil channel the export with the first intercommunication time of drawing the entry of oil channel guarantees that the introduction volume of lubricating oil is enough, can also draw the inside of oil channel simultaneously and draw oil latus rectum can design less relatively, prevents too big reduction to the structural strength of base plate. A second sunken groove 405 is configured on a side of a base plate of the orbiting scroll 4 facing the fixed scroll 3, the first oil introduction passage communicates with the first sunken groove 401 and the second sunken groove 405, and the second sunken groove 405 may extend, for example, approximately one section in a circumferential direction of the orbiting scroll 4 to distribute introduced lubricating oil more uniformly on a mating surface of the orbiting scroll 4 and the fixed scroll 3. The first oil introducing passage includes a first radial oil passage 403 communicating with the first depressed groove 401 and extending in a radial direction of the orbiting scroll 4, and a first axial oil passage 404 communicating with the second depressed groove 405 and extending in an axial direction of the orbiting scroll 4.

In some embodiments, there are two keys 505, and there are two corresponding key slots 402.

Specifically, as shown in fig. 2, in the operation process of the compressor, the key of the oldham ring 5 always covers the first sunken groove 401 on the side wall of the key groove 402 of the movable scroll 4, and the supporting surface of the oldham ring 5 always covers the oil storage groove 603 of the upper bracket 6, so that the refrigeration oil flows from the upper bracket oil pool 6A to the second sunken groove 405 on the base plate of the movable scroll 4 along the arrow direction in the figure, and the lubrication of the end surface of the movable and stationary disks is completed.

According to the utility model discloses an embodiment still provides an air conditioner, including foretell scroll compressor.

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 above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A scroll compressor is characterized by comprising a movable scroll (4) and a fixed scroll (3) which are opposite, wherein a key groove (402) is formed in one side, away from the fixed scroll (3), of a base plate of the movable scroll (4), the cross slide ring (5) further comprises a cross slide ring (5), the cross slide ring (5) is provided with a key (505), the key (505) is installed in the key groove (402) to prevent the movable scroll (4) from rotating, a first oil guide channel is formed in the movable scroll (4), a second oil guide channel is formed in the cross slide ring (5), and lubricating oil in an upper bracket oil pool (6A) can intermittently enter an outer circumferential area of a matching surface of the movable scroll (4) and the fixed scroll (3) through the second oil guide channel and the first oil guide channel in the translation process of the movable scroll (4).

2. The scroll compressor of claim 1, wherein an inlet of the first oil guiding passage is located on a wall of the key groove (402), and an outlet of the second oil guiding passage is located on a wall of the key (505) corresponding to the inlet, wherein the outlet and the inlet can be intermittently communicated and closed during the translation of the orbiting scroll (4).

3. The scroll compressor according to claim 2, further comprising an upper bracket (6), wherein the upper bracket oil pool (6A) is configured at a side of the upper bracket (6) facing the orbiting scroll (4), and a third oil guide passage is further configured on the upper bracket (6), and the lubricating oil in the upper bracket oil pool (6A) enters the second oil guide passage via the third oil guide passage.

4. The scroll compressor of claim 3, wherein the outlet position of the third oil introducing passage has an oil reservoir (603); and/or the third oil guide passage comprises a third radial oil passage (602) extending along the radial direction of the upper support (6) and a third axial oil passage (601) extending along the axial direction of the upper support (6).

5. The scroll compressor according to claim 4, wherein the second oil introducing passage includes a second axial oil passage (504) communicating with the oil storage groove (603) and extending in an axial direction of the oldham ring (5), a first horizontal oil passage (501) intermittently communicating with the first oil introducing passage, a fourth axial oil passage (502) parallel to the second axial oil passage (504), and a second radial oil passage (503) communicating the second axial oil passage (504) and the fourth axial oil passage (502).

6. The scroll compressor of claim 2, wherein a first counterbore (401) is configured on a wall of the keyway (402), the first oil introduction passage inlet being in the first counterbore (401).

7. A scroll compressor according to claim 6, wherein a second sunk groove (405) is formed on a side of a base plate of the orbiting scroll (4) facing the fixed scroll (3), and the first oil introducing passage communicates the first sunk groove (401) and the second sunk groove (405).

8. The scroll compressor according to claim 7, wherein the first oil introducing passage includes a first radial oil passage (403) communicating with the first sunk groove (401) and extending in a radial direction of the orbiting scroll (4), and a first axial oil passage (404) communicating with the second sunk groove (405) and extending in an axial direction of the orbiting scroll (4).

9. The scroll compressor of claim 1, wherein the key (505) has two, and the key slot (402) is provided in two.

10. An air conditioner, characterized by comprising a scroll compressor according to any one of claims 1 to 9.

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