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CN-122014604-A - Fixed scroll, compressor and refrigeration equipment

CN122014604ACN 122014604 ACN122014604 ACN 122014604ACN-122014604-A

Abstract

The invention provides a fixed vortex disc, a compressor and refrigeration equipment, wherein the fixed vortex disc is used for the compressor, the compressor comprises an movable vortex disc, an oil outlet is arranged on the movable vortex disc, the fixed vortex disc comprises a disc body, a fixed vortex tooth is arranged on the disc body and is positioned at the inner side of the thrust surface along the radial direction of the disc body, an oil groove is arranged on the thrust surface and is intermittently communicated with the oil outlet, at least one groove is arranged on the thrust surface and is intermittently communicated with the oil outlet along the radial direction of the disc body, and therefore the contact area between the movable vortex disc and the fixed vortex disc is effectively reduced, the abrasion of the contact surface between the movable vortex disc and the fixed vortex disc is remarkably improved, the service life of the compressor is prolonged, the reliability of the compressor is improved, and the lubricating requirement of the thrust surface can be met for the compressor with large discharge capacity and high rotation speed.

Inventors

  • ZHANG YUE
  • ZHANG KANG
  • ZHENG YUTAO
  • GUO ZHIYANG

Assignees

  • 广东美的环境科技有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (13)

  1. 1. The utility model provides a quiet vortex dish, its characterized in that, quiet vortex dish is used for the compressor, the compressor is including moving the vortex dish, it is equipped with the oil outlet to move the vortex dish, quiet vortex dish includes: The disc body is provided with a thrust surface, and the thrust surface is contacted with the movable vortex disc; The fixed vortex teeth are arranged on the disc body and positioned on the inner side of the thrust surface along the radial direction of the disc body; The oil groove is arranged on the thrust surface and is intermittently communicated with the oil outlet; and the groove is arranged on the thrust surface, is positioned at the outer side of the oil groove along the radial direction of the disc body, and is intermittently communicated with the oil outlet.
  2. 2. The fixed scroll of claim 1, wherein at least one of the grooves is provided with a first communication portion extending to a side where the oil groove is located, the first communication portion intermittently communicating with the oil outlet hole.
  3. 3. The fixed scroll according to claim 2, wherein the oil groove is provided with a second communication portion that intermittently communicates with the oil outlet hole; Wherein the first communication portion is disposed adjacent to the second communication portion.
  4. 4. A fixed scroll as claimed in claim 3, wherein at least part of the first communicating portion is opposed to the second communicating portion in a radial direction of the disk body.
  5. 5. A fixed scroll as claimed in claim 3, wherein the flow area of the second communication portion is greater than the flow area of the first communication portion.
  6. 6. The fixed scroll of any one of claims 1 to 5, wherein the number of grooves is at least two, at least two of the grooves being arranged at intervals in a radial direction of the disk body; wherein, at least two of the grooves are adjacent to the oil groove and intermittently communicated with the oil outlet.
  7. 7. The fixed scroll as claimed in any one of claims 1 to 5, wherein, At least one of the grooves is an annular groove, and/or At least one of the grooves includes first and second opposite ends, with a spacing therebetween along a circumferential direction of the disc.
  8. 8. The fixed scroll of claim 7, wherein the fixed scroll includes, Based on at least one recess including first end and the second end that is opposite to each other, along the circumference of disk body, first end with have the interval between the second end, first end with the second end respectively with the angle alpha that the line at disk body center was presented satisfies alpha and is greater than or equal to 180.
  9. 9. The fixed scroll of claim 7, wherein the fixed scroll includes, Based on at least one recess including first end and the second end that is opposite to each other, along the circumference of disk body, first end with have the interval between the second end, in the case of the quantity of recess is at least two, at least two the recess is followed the circumference distribution of disk body.
  10. 10. The fixed scroll of any one of claims 1 to 5, wherein the compressor further comprises a back pressure chamber, at least one of the grooves communicating with the back pressure chamber.
  11. 11. The fixed scroll of claim 10, wherein the number of grooves is at least two, the at least two grooves including a first groove and a second groove, the first groove being located between the oil groove and the second groove in a radial direction of the disk body, the first groove and the second groove being respectively communicated with the back pressure chamber; And the communication area between the second groove and the back pressure cavity is larger than that between the first groove and the back pressure cavity.
  12. 12. A kind of compressor, in which the compressor is composed of a casing, characterized by comprising the following steps: the fixed scroll according to any one of claims 1 to 11; the movable vortex disc is enclosed with the fixed vortex disc to form a compression cavity, the movable vortex disc is provided with an oil outlet, and the oil groove and at least one groove are respectively and intermittently communicated with the oil outlet; And the back pressure cavity is communicated with the compression cavity and is partially positioned at one side of the movable vortex disc, which is away from the fixed vortex disc.
  13. 13. A refrigeration appliance, comprising: the fixed scroll according to any one of claims 1 to 11, or The compressor of claim 12.

Description

Fixed scroll, compressor and refrigeration equipment Technical Field The invention relates to the technical field of compressors, in particular to a fixed scroll, a compressor and refrigeration equipment. Background Compression mechanisms of scroll compressors typically include inter-engaging orbiting and non-orbiting scrolls to form a series of compression chambers therebetween for compression. When the drive shaft of the drive mechanism rotates, the orbiting scroll can be driven via the crank pin of the drive shaft so that the orbiting scroll makes translational rotation with respect to the fixed scroll. At present, a scroll compressor in the related art is generally provided with an annular oil groove on a disk surface of a fixed scroll, and the annular oil groove is intermittently communicated with an oil outlet of a movable disk so as to supply oil to a thrust surface of the movable disk, however, for the scroll compressor with large discharge capacity and high rotating speed, the oil supply mode cannot meet the lubrication requirement of the thrust surface of the movable disk, so that abrasion between the thrust surfaces of the movable disk is large, and the operation reliability of the compressor is influenced. Disclosure of Invention Embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art. To this end, a first aspect of an embodiment of the present invention provides a fixed scroll. A second aspect of an embodiment of the present invention provides a compressor. A third aspect of embodiments of the present invention provides a refrigeration appliance. In view of the above, according to a first aspect of embodiments of the present invention, there is provided a fixed scroll for a compressor including an orbiting scroll provided with an oil outlet, the fixed scroll including a disk body provided with a thrust surface in contact with the orbiting scroll, fixed scroll teeth provided on the disk body in a radial direction of the disk body, the fixed scroll teeth being located inside the thrust surface, an oil groove provided on the thrust surface, the oil groove being in intermittent communication with the oil outlet, at least one groove provided on the thrust surface in the radial direction of the disk body, the at least one groove being located outside the oil groove, the at least one groove being in intermittent communication with the oil outlet. The fixed vortex disc provided by the embodiment of the invention comprises a disc body, fixed vortex teeth, an oil groove and at least one groove, wherein the fixed vortex teeth are arranged on the disc body, and it is understood that the movable vortex disc comprises movable vortex teeth which are meshed with the fixed vortex teeth so that the movable vortex disc and the fixed vortex disc are enclosed to form a compression cavity. Optionally, the tray body is further provided with an exhaust port, and the exhaust port is communicated with the compression cavity. Specifically, when the compressor runs, the movable scroll moves in a translation mode relative to the fixed scroll so as to compress gas in the compression cavity, and when the exhaust pressure is reached, the compressed high-temperature high-pressure gas is discharged from the exhaust port. The movable vortex disc is provided with an oil outlet, optionally, the compressor further comprises a crankshaft and an oil pool, the crankshaft is connected with the movable vortex disc, an oil supply channel is arranged in the crankshaft, one end of the oil supply channel is communicated with the oil pool, and the other end of the oil supply channel is communicated with the oil outlet. Specifically, when the compressor is operated, the lubricating oil in the oil sump enters the oil outlet through the oil supply passage, and since the oil groove is intermittently communicated with the oil outlet, that is, the lubricating oil flowing out of the oil outlet can enter the oil groove to lubricate the contact surface between the movable scroll and the fixed scroll. At least one groove is arranged on the thrust surface, and the at least one groove is positioned on the radial outer side of the oil groove, namely, the thrust surface of the fixed scroll is additionally provided with at least one groove except the oil groove, so that the contact area between the movable scroll and the fixed scroll is effectively reduced, the abrasion of the contact surface between the movable scroll and the fixed scroll is obviously improved, and the service life of the compressor is prolonged. The at least one groove is in intermittent communication with the oil outlet, that is, when the compressor is in operation, the lubricating oil flowing out of the oil outlet can enter the at least one groove in addition to the oil groove. Because at least one recess is located the radial outside of oil groove to cut apart into at least three region with the thrust face, and in oil groove