CN117145759B - A self-rotating scroll compressor - Google Patents
A self-rotating scroll compressor Download PDFInfo
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- CN117145759B CN117145759B CN202311197890.5A CN202311197890A CN117145759B CN 117145759 B CN117145759 B CN 117145759B CN 202311197890 A CN202311197890 A CN 202311197890A CN 117145759 B CN117145759 B CN 117145759B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses an autorotation vortex compressor, which relates to the technical field of compressors and comprises a vortex compressor structure and a driving motor, wherein the vortex compressor structure comprises a compressor shell, a driving vortex plate, a driven vortex plate, a transmission slip ring and an exhaust shaft, wherein the driving vortex plate, the driven vortex plate, the transmission slip ring and the exhaust shaft are arranged in the compressor shell, the driving motor comprises a motor shell, a driving shaft, a rotor and a stator, the driving shaft, the rotor and the stator are arranged in the motor shell, the compressor shell is connected with the motor shell through side end covers, the phase difference between the driving vortex plate and the driven vortex plate is 180 degrees, the rotor and the driving vortex plate are respectively connected with the driving shaft, the rotor and the stator relatively rotate, the transmission slip ring is positioned between the driving vortex plate and the driven vortex plate, the driven vortex plate is connected with the exhaust shaft, and the exhaust shaft is rotationally connected with the compressor shell. The invention can improve the working speed of the compressor, reduce the volume of the compressor and improve the working efficiency of the compressor.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to an autorotation vortex compressor.
Background
The scroll compressor has the advantages of simple structure, stable operation, low noise, high mechanical efficiency, high volumetric efficiency and the like, and is widely applied to various fields of industry, life and the like. The moving vortex disk and the static vortex disk of the vortex compressor are assembled according to the revolution radius which is 180 degrees different and is oppositely arranged and offset to be determined, the moving vortex disk is driven by a crankshaft with the eccentric radius being the revolution radius of the moving vortex disk to realize the revolution translation, a plurality of pairs of crescent closed working cavities with continuously changing volumes are formed by meshing with the static vortex disk in the moving process of the moving vortex disk, a first (central cavity), a second compression cavity and a third compression cavity (air suction cavity) are respectively arranged from inside to outside, when the compressor works, the volume of the compression cavity changes along with the rotation angle of a main shaft, and when the compression is finished, the second compression cavity is communicated with the central cavity and gas is discharged through an air vent. The working medium is subjected to three processes of air suction, compression and air discharge in the crescent working cavity.
When the movable vortex plate of the current revolution type vortex compressor moves horizontally, a large unbalance amount exists, and vibration and noise are generated. The vortex compressor of the air conditioner for the vehicle needs to realize the indexes of small volume, high pressure ratio, low noise and high efficiency, and the specific realization mode has the advantages of improving the rotating speed of the compressor and reducing the unbalance of the vortex disk. However, the rotation speed is difficult to be increased and the unbalance amount is reduced due to the limitation of the working mode of the revolution type scroll compressor.
Disclosure of Invention
The invention aims to provide an autorotation vortex compressor, which solves the problems in the prior art, improves the working speed of the compressor, reduces the volume of the compressor and improves the working efficiency of the compressor.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides an autorotation scroll compressor, which comprises a scroll compressor structure and a driving motor, wherein the scroll compressor structure comprises a compressor shell, a driving scroll, a driven scroll, a transmission slip ring and an exhaust shaft, wherein the driving scroll, the driven scroll, the transmission slip ring and the exhaust shaft are arranged in the compressor shell, the driving motor comprises a motor shell, a driving shaft, a rotor and a stator, the driving shaft, the rotor and the stator are arranged in the motor shell, the compressor shell is connected with the motor shell through side end covers, the phase difference between the driving scroll and the driven scroll is 180 degrees, the rotor and the driving scroll are respectively connected with the driving shaft, the rotor and the stator rotate relatively, the transmission slip ring is positioned between the driving scroll and the driven scroll, the driven scroll is connected with the exhaust shaft, and the exhaust shaft is connected with the compressor shell in a rotating way.
Preferably, the active vortex plate comprises a first plate bottom, a first vortex tooth, a first active friction part, a second active friction part, a first active part and a second active part, wherein the first vortex tooth, the first active friction part and the second active friction part are all arranged on the first plate bottom, the first active friction part and the second active friction part are all positioned on the outer side of the first vortex tooth, the first active friction part and the second active friction part are oppositely arranged, the first active part is arranged on the first active friction part, the second active part is arranged on the second active friction part, and the first active part and the second active part are oppositely arranged;
The driven vortex plate comprises a second plate bottom, a second vortex tooth, a first driven friction part, a second driven friction part, a first driven part and a second driven part, wherein the second vortex tooth, the first driven friction part and the second driven friction part are all arranged on the second plate bottom, an exhaust hole is formed in the second plate bottom, the exhaust hole is communicated with the exhaust shaft, the first driven friction part and the second driven friction part are all arranged on the outer side of the second vortex tooth, the first driven friction part and the second driven friction part are oppositely arranged, the first driven part is arranged on the first driven friction part, the second driven part is arranged on the second driven friction part, and the first driven part and the second driven part are oppositely arranged.
Preferably, two first matching parts are arranged at one end of the transmission slip ring, the two first matching parts are oppositely arranged, the two first matching parts are respectively matched with the first driving part and the second driving part, the two first matching parts divide the end face of one end of the transmission slip ring into a first friction surface and a second friction surface, the first friction surface is contacted with the first driving friction surface of the first driving friction part, the second friction surface is contacted with the second driving friction surface of the second driving friction part, the other end of the transmission slip ring is provided with two second matching parts, the two second matching parts are oppositely arranged, the two second matching parts are respectively matched with the first driven part and the second driven part, the end face of the other end of the transmission slip ring is divided into a third friction surface and a fourth friction surface, the third friction surface is contacted with the first driven friction surface of the first driven friction part, and the fourth friction surface is contacted with the second driven friction surface of the second driven friction part.
Preferably, the first driving part and the second driving part are bosses, the first matching part is a chute, or the first driving part and the second driving part are chutes, and the first matching part is a boss.
Preferably, the first driven part and the second driven part are bosses, the second matching part is a chute, or the first driven part and the second driven part are chutes, and the second matching part is a boss.
Preferably, a motor end cover is further arranged at the lower part of the motor shell, a compressor cavity is arranged between the compressor shell and the side end cover, a motor cavity is arranged between the side end cover, the motor shell and the motor end cover, an air inlet hole is formed in the motor shell, a plurality of vent holes are formed in the side end cover, and the vent holes are used for communicating the motor cavity and the compressor cavity;
One end of the driving shaft is rotationally connected with the side end cover, the other end of the driving shaft is rotationally connected with the motor end cover, and a locking nut is arranged at the other end of the driving shaft.
Preferably, the scroll compressor structure further comprises a compressor outlet end cover, an exhaust port is arranged on the compressor outlet end cover, the compressor outlet end cover is connected with the compressor shell, an exhaust cavity is formed between the compressor outlet end cover and the compressor shell, the inside of the exhaust shaft is hollow, one end of the exhaust shaft can be communicated with the exhaust cavity, the other end of the exhaust shaft can be communicated with the compressor cavity, a check device is arranged in the exhaust cavity, and the check device is located at one end of the exhaust shaft.
Preferably, a plurality of transmission slip ring vent holes are formed in the side wall of the transmission slip ring, and the transmission slip ring vent holes are used for communicating the compressor cavity and the exhaust shaft.
Preferably, a back disc clearance exists between the back of the driven scroll and the compressor housing.
Preferably, the surfaces of the driving scroll, the driven scroll and the driving slip ring are provided with self-lubricating coatings.
Compared with the prior art, the invention has the following technical effects:
the driving shaft drives the driving vortex plate to rotate, the driving vortex plate drives the driving slip ring to rotate, and the driving slip ring drives the driven vortex plate to rotate. The driving slip ring limits the relative rotation speed of the driving vortex plate and the driven vortex plate to be zero all the time under various working conditions, and the relative phase difference fixation of the driving vortex plate and the driven vortex plate is realized. The driving vortex plate and the driven vortex plate are both rotation vortex plates, so that unbalance amount generated by working of the vortex plates is reduced, and vibration and noise generated by working of a compressor are reduced. Meanwhile, the unbalance amount generated by the rotating component in the whole shafting is small, so that the scroll compressor can operate at a high working rotation speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a self-rotating scroll compressor according to the present invention;
FIG. 2 is an external schematic view of the self-rotating scroll compressor of the present invention;
FIG. 3 is a schematic view of an active scroll of the present invention;
FIG. 4 is a schematic view of a driven scroll of the present invention;
FIG. 5 is a schematic view of a drive slip ring of the present invention;
FIG. 6 is a schematic view of a side end cap of the present invention;
FIG. 7 is a schematic diagram of a back plate gap of the present invention;
FIG. 8 is a front view of the check device of the present invention;
FIG. 9 is a side view of the check device of the present invention;
Wherein: the high pressure compressor housing comprises a housing body, a housing 102, a housing cover 2, a housing 3, a housing 4, a housing 401, a bearing housing 402, a vent hole, a housing 403, a housing seal groove of a housing side, a housing 5, a housing 501, a check device 61, a stator 62, a rotor 63, a drive shaft 631, a drive key 632, a second bearing 633, a third bearing 634, a locking nut 635, a second frame seal ring, a 7-driving scroll, a 701-first driving portion, a 702-first driving friction surface, a 703-second driving portion, a 704-second driving friction surface, a 705-driving scroll seal groove, a 8-drive slip ring, a 801-first mating portion, a 802-second mating portion, a 803-first friction surface, a 804-second friction surface, a 805-third friction surface, a 806-fourth friction surface, a 807-drive slip ring vent hole, a 9-driven scroll, a 901-first driven portion, a 902-first driven friction surface, a 903-second driven portion, a 904-second driven friction surface, a 905-driven scroll, a 10-first shaft, a bearing back surface, a 903-second driven friction surface, a 905-second driven friction surface, a housing body, a sealing groove 11-1001-high pressure clearance.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide an autorotation vortex compressor, which solves the problems in the prior art, improves the working speed of the compressor, reduces the volume of the compressor and improves the working efficiency of the compressor.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 9, the present embodiment provides a self-rotating scroll compressor, which comprises a scroll compressor structure and a driving motor, wherein the scroll compressor structure comprises a compressor housing 5, a driving scroll 7, a driven scroll 9, a driving slip ring 8 and a gas discharge shaft 10, the driving motor comprises a motor housing 3, a driving shaft 63, a rotor 62 and a stator 61, which are arranged in the motor housing 3, the compressor housing 5 and the motor housing 3 are connected through a side end cover 4, a compression cavity is arranged between the driving scroll 7 and the driven scroll 9, the driving scroll 7 and the driven scroll 9 respectively rotate around respective central rotating shafts, the central rotating shafts of the driving scroll 7 and the driven scroll 9 have fixed eccentric distances, the eccentric distances are the designed radius of gyrations of the driving scroll 7 and the driven scroll 9, the driving scroll 7 drives the driven scroll 9 to rotate at the same rotating speed through a driving slip ring 8, the phase difference between the driving scroll 7 and the driven scroll 9 is always kept 180 °, the rotor 62, the driving scroll 7 is respectively connected with the driving shaft 63, the driving scroll 7 and the driving scroll 7 are coaxially arranged with the driving shaft 63 through a side end cover 4, the driving scroll 1001 is connected with the first scroll 10 through a bearing 1001, and the driving scroll is arranged between the driving scroll housing 5 and the first scroll is connected with the first scroll 10 through a driving bearing, and the first scroll bearing 1001 is rotatably connected with the first scroll housing 5 through a driving bearing, and the first bearing 1001 is rotatably arranged, and is rotatably connected with the driving scroll bearing 5 is rotatably connected with the first scroll bearing 5, and is rotatably arranged.
Specifically, in this embodiment, the active scroll 7 includes a first disc bottom, a first scroll wrap, a first active friction portion, a second active friction portion, a first active portion 701, and a second active portion 703, the first scroll wrap, the first active friction portion, and the second active friction portion are all disposed on the first disc bottom, the tip of the first scroll wrap is provided with an active scroll seal groove 705 extending along a line thereof, a seal strip is accommodated in the active scroll seal groove 705, the seal strip is in contact with the second disc bottom of the driven scroll 9, the first active friction portion and the second active friction portion are all located outside the first scroll wrap, the first active friction portion and the second active friction portion are disposed opposite to each other, the first active portion 701 is disposed on the first active friction portion, the second active portion 703 is disposed on the second active friction portion, and the first active portion 701 and the second active portion 703 are disposed opposite to each other.
In this embodiment, the driven scroll 9 includes a second disc bottom, a second scroll wrap, a first driven friction portion, a second driven friction portion, a first driven portion 901 and a second driven portion 903, the second scroll wrap, the first driven friction portion and the second driven friction portion are all disposed on the second disc bottom, an exhaust hole is provided on the second disc bottom, the exhaust hole is communicated with the exhaust shaft 10, compressed gas in the scroll compressor structure is discharged from the exhaust hole into the exhaust shaft 10, the tip of the second scroll wrap is provided with a driven scroll seal groove 905 extending along a molded line thereof, a sealing strip is accommodated in the driven scroll seal groove 905, the sealing strip is in contact with the first disc bottom of the driving scroll 7, the first driven friction portion and the second driven friction portion are both disposed outside the second scroll wrap, the first driven friction portion and the second driven friction portion are disposed oppositely, the first driven portion 901 is disposed on the first driven friction portion, the second driven portion 903 is disposed on the second driven friction portion, and the first driven portion 901 and the second driven portion 903 are disposed oppositely.
In this embodiment, the first scroll wrap of the driving scroll 7 and the second scroll wrap of the driven scroll 9 both adopt multi-dimensional conjugate curved-surface scroll wrap structures.
In this embodiment, two first matching portions 801 are provided at one end of the driving slip ring 8, the two first matching portions 801 are disposed opposite to each other, the two first matching portions 801 are matched with the first driving portion 701 and the second driving portion 703 and are matched for driving, the two first matching portions 801 divide the end face of one end of the driving slip ring 8 into a first friction face 803 and a second friction face 804, the first friction face 803 contacts with the first driving friction face 702 of the first driving friction portion, the second friction face 804 contacts with the second driving friction face 704 of the second driving friction portion, the other end of the driving slip ring 8 is provided with two second matching portions 802, the two second matching portions 802 are disposed opposite to each other, the two second matching portions 802 are matched with the first driven portion 901 and the second driven portion 903 for driving, the two second matching portions 802 divide the end face of the other end of the driving slip ring 8 into a third friction face 805 and a fourth friction face 806, the third friction face 805 contacts with the first driven friction face 902 of the first driven friction portion, the fourth friction face 806 contacts with the second driven friction face 704 of the second driven slip ring 8, and the driven slip ring 8 is provided with a plurality of ventilation holes 10 and a plurality of ventilation holes 807 are provided in the driving slip ring 8.
In this embodiment, the first driving portion 701 and the second driving portion 703 are bosses, the first matching portion 801 is a chute, the first driving portion 701 and the second driving portion 703 slide in the corresponding first matching portion 801, the first driving portion 701 and the second driving portion 703 correspondingly match and drive the corresponding first matching portion 801, so that the driving slip ring 8 translates in the direction of the first driving portion 701 or the second driving portion 703-the first matching portion 801 and rotates simultaneously, the first driven portion 901 and the second driven portion 903 are bosses, the second matching portion 802 is a chute, the first driven portion 901 and the second driven portion 903 slide in the corresponding second matching portion 802, and the first driven portion 901 and the second driven portion 903 correspondingly match and drive the corresponding second matching portion 802, so that the driving slip ring 8 rotates simultaneously in the direction of the first driven portion 901 or the second driven portion 903-the second matching portion 802, and drives the driving slip ring 8 to rotate around a rotation axis having a certain distance with the driving disc 7. The driving slip ring 8 limits the relative rotation speeds of the driving scroll 7 and the driven scroll 9 to be zero all the time under various working conditions, and realizes the relative phase difference fixation of the driving scroll 7 and the driven scroll 9.
In the embodiment, the surfaces of the driving vortex plate 7, the driven vortex plate 9 and the driving slip ring 8 are respectively provided with a self-lubricating coating, so that oil-free self-lubrication of the whole machine is realized, and the problem of mutual dissolution of a lubricant and a working medium is solved.
In this embodiment, the lower part of the motor housing 3 is further provided with a motor end cover 2, a compressor cavity is arranged between the compressor housing 5 and the side end cover 4, a motor cavity is arranged between the side end cover 4, the motor housing 3 and the motor end cover 2, the motor cavity is simultaneously used as an air inlet cavity, an air inlet hole is formed in the lower position of the motor housing 3, a plurality of air holes 402 are formed in the side end cover 4, the air holes 402 are used for communicating the motor cavity and the compressor cavity, a bearing seat 401 matched with a second bearing 632 is arranged in the center of the side end cover 4, one end of a driving shaft 63 is rotationally connected with the side end cover 4 through the second bearing 632, the other end of the driving shaft 63 is rotationally connected with the motor end cover 2 through a third bearing 633, the second bearing 632 and the third bearing 633 are deep groove ball bearings, a locking nut 634 is connected with the other end of the driving shaft 63 in a threaded manner, and a second framework sealing ring 635 is arranged between the locking nut 634 and the third bearing 633.
In this embodiment, a controller housing 101 and a controller cover 102 are disposed below the motor end cover 2, and the other end of the drive shaft 63 and a lock nut 634 are located between the motor end cover 2 and the controller housing 101, and between the controller housing 101 and the controller cover 102, a motor controller is placed.
In this embodiment, the scroll compressor structure further includes a compressor outlet end cover 11, an exhaust port is provided on the compressor outlet end cover 11, the compressor outlet end cover 11 is connected with the compressor housing 5, a discharge cavity is formed between the compressor outlet end cover 11 and the compressor housing 5, the inside of the discharge shaft 10 is hollow, one end of the discharge shaft 10 can be communicated with the discharge cavity, the other end of the discharge shaft 10 can be communicated with the compressor cavity, a check device 501 is provided in the discharge cavity, the check device 501 is located at one end of the discharge shaft 10, and the check device 501 is in the prior art.
In this embodiment, the air intake cavity, the compression cavity, and the exhaust cavity form a working cavity.
In this embodiment, the driving slip ring 8 and the driven scroll 9 are a low pressure chamber a, the inside of the exhaust shaft 10 is a high pressure chamber c, according to the operation conditions of different systems, the actual operation pressure of the compressor is different, for example, when the cooling working medium is R134a, the pressure of the low pressure chamber a is 0.2MPa, the pressure of the high pressure chamber c is 1.5MPa, in order to prevent the driven scroll 9 from being subjected to an excessive axial load, the service life of the first bearing 1001 is greatly reduced or even damaged, the back of the driven scroll 9 adopts a micro-distance back disc clearance technology, that is, a back disc clearance b exists between the back of the driven scroll 9 and the compressor housing 5, according to the operation conditions of different systems, the actual operation pressure of the compressor is different, for example, when the cooling working medium is R134a, the back disc clearance b is 0.5mm, the average pressure in the back disc clearance b is 0.8MPa, and in order to prevent the leakage amount from being controlled, at the same time, the back of the driven scroll 9 and the compressor housing 5 form a back disc clearance b, so that the axial damage to the first bearing 9 is prevented.
In this embodiment, the driving scroll 7 and the driven scroll 9 are connected and driven by the driving slip ring 8, the driving scroll 7 and the driven scroll 9 rotate around their respective rotation axes at the same rotation speed, and the distance between the two axes is the designed eccentricity of the compressor. The driving shaft 63 drives the driving scroll 7 to rotate, the driving scroll 7 drives the driving slip ring 8 to rotate, and the driving slip ring 8 drives the driven scroll 9 to rotate.
In this embodiment, the compressor outlet end cover 11, the compressor housing 5, the side end cover 4, and the motor housing 3 are detachably connected by bolts, and the motor housing 3, the motor end cover 2, the controller housing 101, and the controller cover 102 are detachably connected by bolts.
In this embodiment, the pressure intensity of the cooling medium in the vehicular air conditioning system is higher, so sealing strips are arranged between the side end cover 4 and the compressor housing 5, between the side end cover 4 and the motor housing 3, and between the motor housing 3 and the motor end cover 2, for example, a side end cover sealing groove 403 is formed in the side end cover 4, a motor end cover 2 sealing groove is formed in the motor end cover 2, and the sealing strips are placed in the side end cover sealing groove 403 and the motor end cover 2 sealing groove, so that the problem of leakage of the medium during the operation of the compressor can be effectively solved by arranging the sealing strips.
When the autorotation scroll compressor of the embodiment works, the driving scroll 7 and the driven scroll 9 rotate around respective central rotating shafts at the same rotating speed, and a fixed eccentric distance exists between the central rotating shafts of the driving scroll 7 and the driven scroll 9. The relative motion between the driving slip ring 8 and the driving vortex disk 7 and the driven vortex disk 9 is linear translation in the direction of the first driving part 701 or the second driving part 703-the first matching part 801, and the dragging motion of the driving slip ring 8 is fixed rotation of the driving vortex disk 7, so the absolute motion of the driving slip ring 8 is the combined motion of the relative motion and the dragging motion. When the driving scroll 7 and the driven scroll 9 rotate at the same rotation speed and fixed eccentricity, one scroll (the driving scroll 7) is taken as a reference scroll, the relative angular speed of the other scroll (the driven scroll 9) is always zero, the direction of the eccentricity is continuously changed, namely, the reference scroll (the driving scroll 7) is fixed, and the other scroll (the driven scroll 9) moves in a translation mode around the fixed eccentricity, and the movement mode is the same as that of the revolution type scroll compressor.
The autorotation scroll compressor of the embodiment adopts a working medium to cool and drive a motor, the working medium is introduced from an air inlet hole arranged on the motor shell 3, enters the motor cavity to absorb heat, then enters the compressor cavity through an air vent 402 on the side end cover 4, then enters the working cavity of the scroll compressor through a transmission slip ring air vent 807 on the transmission slip ring 8, is discharged from an exhaust shaft 10 after being compressed by the scroll compressor structure, and is prevented from flowing back due to pressure pulsation in the compression process by a check device 501 arranged on the compressor shell 5.
Compared with the traditional orbiting scroll compressor, the working cavity is lower in pneumatic loss, particularly the compression cavity is in a low-momentum compression process, the exhaust cavity has a certain clearance volume, the exhaust throttling loss is smaller, the isentropic compression efficiency and the volumetric efficiency are higher, the working speed of the compressor is improved, and the working efficiency of the compressor is improved.
The driving vortex plate 7 and the driven vortex plate 9 are both rotation vortex plates, so that unbalance amount generated by working of the vortex plates is reduced, and vibration and noise generated by working of a compressor are reduced. Meanwhile, the unbalance amount generated by the rotating component in the whole shafting is small, so that the scroll compressor can operate at a high working rotation speed. Under certain mass flow, the design rotational speed of the scroll compressor is improved, and the design scroll line on the scroll plate can be shortened, so that the radius of the scroll plate (the driving scroll plate 7 and the driven scroll plate 9) is reduced, and the whole volume of the scroll compressor is reduced.
Compared with the revolution type scroll compressor, the revolution type scroll compressor has the advantages that when the revolution type scroll compressor works, the scroll teeth on two sides of one compression cavity move, so that friction loss between working media and the compression cavity can be reduced, and the working efficiency of the scroll compressor is improved.
The invention adopts the centrally-mounted driving slip ring 8, namely the driving slip ring 8 is positioned between the driving scroll 7 and the driven scroll 9, thereby effectively improving the stability of the driving slip ring 8 during high-speed operation and improving the structural durability of the driving slip ring 8. Meanwhile, the driving slip ring 8 also enables the axial direction of the driving vortex plate 7 and the driven vortex plate 9 to keep reasonable clearance, and deformation of vortex teeth caused by mutual collision between the tooth tops and the disc bottoms of the driving vortex plate 7 and the driven vortex plate 9 during working is prevented.
According to the invention, the air inlet hole is formed in the lower position of the motor shell 3, so that the motor can be effectively cooled without other cooling devices, the volume and the complexity of a system of the motor are obviously reduced, and the working reliability of the motor is improved.
The invention adopts the self-lubricating coating, the self-lubricating coating can effectively lubricate the driving scroll 7, the driven scroll 9 and the transmission slip ring 8, simultaneously reduces the meshing gap between the driving scroll 7 and the driven scroll 9, reduces the leakage quantity and improves the compression efficiency.
The principles and embodiments of the present invention have been described in detail in this application, the above examples are provided to facilitate understanding of the method of the present invention and its core ideas, and modifications may be made by those skilled in the art in light of the present teachings, both in the detailed description and the application scope. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
1. The self-rotation scroll compressor is characterized by comprising a scroll compressor structure and a driving motor, wherein the scroll compressor structure comprises a compressor shell, a driving scroll, a driven scroll, a transmission slip ring and an exhaust shaft, the driving scroll, the driven scroll, the transmission slip ring and the exhaust shaft are arranged in the compressor shell, the driving motor comprises a motor shell, a driving shaft, a rotor and a stator, the driving shaft, the rotor and the stator are arranged in the motor shell, the compressor shell is connected with the motor shell through side end covers, the phase difference between the driving scroll and the driven scroll is 180 degrees, the rotor and the driving scroll are respectively connected with the driving shaft, the rotor and the stator rotate relatively, the transmission slip ring is positioned between the driving scroll and the driven scroll, the driven scroll is connected with the exhaust shaft, and the exhaust shaft is connected with the compressor shell in a rotating way;
The driving vortex plate comprises a first plate bottom, a first vortex tooth, a first driving friction part, a second driving friction part, a first driving part and a second driving part, wherein the first vortex tooth, the first driving friction part and the second driving friction part are arranged on the first plate bottom, the first driving friction part and the second driving friction part are positioned on the outer side of the first vortex tooth, the first driving friction part and the second driving friction part are oppositely arranged, the first driving part is arranged on the first driving friction part, the second driving part is arranged on the second driving friction part, and the first driving part and the second driving part are oppositely arranged;
The driven vortex plate comprises a second plate bottom, a second vortex tooth, a first driven friction part, a second driven friction part, a first driven part and a second driven part, wherein the second vortex tooth, the first driven friction part and the second driven friction part are all arranged on the second plate bottom, an exhaust hole is formed in the second plate bottom and communicated with the exhaust shaft, the first driven friction part and the second driven friction part are all positioned on the outer side of the second vortex tooth, the first driven friction part and the second driven friction part are oppositely arranged, the first driven part is arranged on the first driven friction part, the second driven part is arranged on the second driven friction part, and the first driven part and the second driven part are oppositely arranged;
two first matching parts are arranged at one end of the transmission slip ring and are respectively matched with the first driving part and the second driving part, the two first matching parts divide the end face of one end of the transmission slip ring into a first friction surface and a second friction surface, the first friction surface is contacted with the first driving friction surface of the first driving friction part, the second friction surface is contacted with the second driving friction surface of the second driving friction part, the other end of the transmission slip ring is provided with two second matching parts, the two second matching parts are respectively matched with the first driven part and the second driven part, the two second matching parts divide the end face of the other end of the transmission slip ring into a third friction surface and a fourth friction surface, and the third friction surface is contacted with the first driven friction surface of the first driven friction part, and the fourth friction surface is contacted with the second driven friction surface of the second driven part;
The lower part of the motor shell is also provided with a motor end cover, a compressor cavity is arranged between the compressor shell and the side end cover, a motor cavity is arranged between the side end cover, the motor shell and the motor end cover, an air inlet hole is formed in the motor shell, a plurality of vent holes are formed in the side end cover, and the vent holes are used for communicating the motor cavity and the compressor cavity;
The side wall of the transmission slip ring is provided with a plurality of transmission slip ring vent holes, and the transmission slip ring vent holes are used for communicating the compressor cavity with the exhaust shaft.
2. The self-rotating scroll compressor of claim 1, wherein the first and second driving portions are bosses, the first mating portion is a chute, or the first and second driving portions are chutes, the first mating portion is a boss.
3. The self-rotating scroll compressor of claim 1, wherein the first driven portion and the second driven portion are bosses and the second mating portion is a chute, or wherein the first driven portion and the second driven portion are chutes and the second mating portion is a boss.
4. The self-rotating scroll compressor according to claim 1, wherein:
One end of the driving shaft is rotationally connected with the side end cover, the other end of the driving shaft is rotationally connected with the motor end cover, and a locking nut is arranged at the other end of the driving shaft.
5. The self-rotating scroll compressor of claim 4, wherein the scroll compressor structure further comprises a compressor outlet end cover, an exhaust port is arranged on the compressor outlet end cover, the compressor outlet end cover is connected with the compressor shell, an exhaust cavity is formed between the compressor outlet end cover and the compressor shell, the inside of the exhaust shaft is hollow, one end of the exhaust shaft can be communicated with the exhaust cavity, the other end of the exhaust shaft can be communicated with the compressor cavity, and a check device is arranged in the exhaust cavity and positioned at one end of the exhaust shaft.
6. The self-rotating scroll compressor of claim 1, wherein a back disk clearance exists between a back of the driven scroll and the compressor housing.
7. The self-rotating scroll compressor of claim 1, wherein the surfaces of the driving scroll, the driven scroll and the driving slip ring are each provided with a self-lubricating coating.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197890.5A CN117145759B (en) | 2023-09-15 | 2023-09-15 | A self-rotating scroll compressor |
| PCT/CN2024/097728 WO2025055410A1 (en) | 2023-09-15 | 2024-06-06 | Rotary scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197890.5A CN117145759B (en) | 2023-09-15 | 2023-09-15 | A self-rotating scroll compressor |
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| Publication Number | Publication Date |
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| CN117145759A CN117145759A (en) | 2023-12-01 |
| CN117145759B true CN117145759B (en) | 2025-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311197890.5A Active CN117145759B (en) | 2023-09-15 | 2023-09-15 | A self-rotating scroll compressor |
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| CN (1) | CN117145759B (en) |
| WO (1) | WO2025055410A1 (en) |
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| CN117145759B (en) * | 2023-09-15 | 2025-02-18 | 璞瑞斯科技(湖北)股份有限公司 | A self-rotating scroll compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199534A (en) * | 2022-08-10 | 2022-10-18 | 常熟英华特环境科技有限公司 | Scroll compressor with double scrolls rotating together |
| CN220815971U (en) * | 2023-09-15 | 2024-04-19 | 璞瑞斯科技(湖北)股份有限公司 | Self-rotation vortex compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927339A (en) * | 1988-10-14 | 1990-05-22 | American Standard Inc. | Rotating scroll apparatus with axially biased scroll members |
| JPH0586801A (en) * | 1991-09-27 | 1993-04-06 | Mitsubishi Heavy Ind Ltd | Scroll-type fluid machine |
| US5609478A (en) * | 1995-11-06 | 1997-03-11 | Alliance Compressors | Radial compliance mechanism for corotating scroll apparatus |
| JP6903826B2 (en) * | 2018-02-28 | 2021-07-14 | 日立ジョンソンコントロールズ空調株式会社 | Dynamic radial compliance in scroll compressors |
| CN117145759B (en) * | 2023-09-15 | 2025-02-18 | 璞瑞斯科技(湖北)股份有限公司 | A self-rotating scroll compressor |
-
2023
- 2023-09-15 CN CN202311197890.5A patent/CN117145759B/en active Active
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2024
- 2024-06-06 WO PCT/CN2024/097728 patent/WO2025055410A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199534A (en) * | 2022-08-10 | 2022-10-18 | 常熟英华特环境科技有限公司 | Scroll compressor with double scrolls rotating together |
| CN220815971U (en) * | 2023-09-15 | 2024-04-19 | 璞瑞斯科技(湖北)股份有限公司 | Self-rotation vortex compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025055410A1 (en) | 2025-03-20 |
| CN117145759A (en) | 2023-12-01 |
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