CN111765078A - Scroll compressor and electric appliance with same - Google Patents
Scroll compressor and electric appliance with same Download PDFInfo
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- CN111765078A CN111765078A CN202010642343.3A CN202010642343A CN111765078A CN 111765078 A CN111765078 A CN 111765078A CN 202010642343 A CN202010642343 A CN 202010642343A CN 111765078 A CN111765078 A CN 111765078A
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- Prior art keywords
- force
- balance
- balancing
- scroll
- eccentric
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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
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
Abstract
The application provides a scroll compressor and a first compression structure, a second compression structure and a balancing device of an electric appliance with the scroll compressor, wherein the first compression structure comprises a first movable scroll, and the first movable scroll rotates around the central axis of the first movable scroll; the second compression structure includes a second orbiting scroll that revolves around a central axis of the second orbiting scroll; the first movable scroll and the second movable scroll are engaged with each other to form a compression chamber; the balancing device is used for providing a balancing force which is used for balancing the eccentric force generated by the compression cavity in the compression process; according to the scroll compressor and the electric appliance with the same, the eccentric force in the compression process is subjected to force and moment balance, and the problem of unbalanced stress of a shafting caused by the eccentric force is solved.
Description
Technical Field
The application belongs to the technical field of compressors, and particularly relates to a scroll compressor and an electric appliance with the same.
Background
At present, scroll compressors can be classified into a revolution type and a revolution type according to the difference of the movement modes of two scroll plates. A orbiting scroll compressor is defined as a fixed scroll, one of which is fixed, and the other of which orbits around the fixed scroll. The rotary scroll compressor is defined as two scrolls synchronously rotating around a self rotating shaft in the same direction, the two scrolls are movable scrolls with completely the same geometric parameters, and the two scrolls are oppositely staggered by 180 degrees at a certain eccentricity and are oppositely arranged in an inserted mode. The orbiting scroll of the orbiting scroll compressor eccentrically orbits with a crankshaft, and centrifugal force balance and centrifugal moment balance of an eccentric portion need to be considered during operation. The eccentric force is divided into radial eccentric force along the connecting line of the centers of the basic circles of the movable and static vortex disks and tangential eccentric force vertical to the radial eccentric force, and the directions of the two eccentric forces synchronously rotate along with the crankshaft, so that the problems of overturning and autorotation of the movable vortex disk are caused. The rotary scroll compressor does not need to consider centrifugal force balance and centrifugal moment balance because a crankshaft does not have eccentricity.
However, the eccentric force of the orbiting scroll compressor is divided into a radial eccentric force in the direction of connecting the centers of the base circles of the two scrolls and a tangential eccentric force perpendicular thereto, and since the rotational axes of the two scrolls are fixed, the position and direction of the eccentric force in the space are always constant. The eccentric force causes the crankshaft to bear local load in a fixed direction and causes the shafting to overturn.
Therefore, how to provide a carry out power and moment balance to the eccentric force of compression process, solve that the eccentric force brings the shafting atress unbalanced, alleviate the bent axle and bear local load towards fixed direction, reduce the scroll compressor and the electrical apparatus that has it of the probability of overturning of shafting and become the problem that technical personnel in the field need to solve urgently.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a scroll compressor and have its electrical apparatus, carries out power and moment balance to the eccentric force of compression process, solves the eccentric force and brings the unbalanced stress of shafting, alleviates the bent axle and bears local load towards fixed direction, reduces the probability of toppling of shafting.
In order to solve the above problems, the present application provides a scroll compressor including:
a first compression structure including a first orbiting scroll that revolves around a central axis of the first orbiting scroll;
a second compression structure including a second orbiting scroll that revolves around a central axis of the second orbiting scroll; the first movable scroll and the second movable scroll are engaged with each other to form a compression chamber;
the balancing device is used for providing balancing force which is used for balancing eccentric force generated by the compression cavity in the compression process.
Preferably, on the cross section of the compression cavity, the connecting line direction of the central axis of the first movable scroll disk and the central axis of the second movable scroll disk is taken as a first direction;
the balancing device comprises a first balancing device; the balancing force comprises a first balancing force; the first balancing device is used for providing a first balancing force, and the first balancing force is used for balancing a first eccentric force in a first direction;
and/or the balancing device comprises a second balancing device; the balance force comprises a second balance force; on the cross section of the compression cavity, the direction perpendicular to the first direction is taken as a second direction; the second balancing device is used for providing a second balancing force, and the second balancing force is used for balancing a second eccentric force in a second direction.
Preferably, the resultant force of the first balancing force and the first eccentric force is zero;
and/or the resultant force of the second balance force and the second eccentric force is zero;
and/or the resultant moment of the first balance force and the first eccentric force is zero;
and/or the resultant moment of the second balance force and the second eccentric force is zero.
Preferably, the scroll compressor includes a compressor housing; the first balance device is arranged on the compressor shell; and/or the second balancing device is arranged on the compressor shell.
Preferably, the first compression structure further comprises a first driving shaft, the first orbiting scroll being provided at a first end of the first driving shaft;
and/or the second compression structure further comprises a second driving shaft, and the second movable scroll is arranged at the first end of the second driving shaft.
Preferably, the first balancing means comprises a first balancing portion; the first balance part corresponds to the position of the first compression structure in the axial direction of the first driving shaft; the first balance part is used for providing a first balance force for the first compression structure;
and/or the second balancing device comprises a second balancing part; the second balance part corresponds to the position of the first compression structure in the axial direction of the first driving shaft; the second balance part is used for providing a second balance force for the first compression structure;
and/or the first balancing means comprises a third balancing portion; the third balance part corresponds to the position of the second compression structure in the axial direction of the second driving shaft; the third balance part is used for providing a first balance force for the second compression structure;
and/or the second balancing means comprises a fourth balancing portion; the fourth balance part corresponds to the position of the second compression structure in the axial direction of the second driving shaft; the fourth balance portion is configured to provide a second balance force to the second compression structure.
Preferably, the first balance part includes a first balance member and a second balance member; the directions of the balance forces provided by the first balance member and the second balance member are opposite;
and/or the second balance part comprises a third balance piece and a fourth balance piece; the directions of the balance forces provided by the third balance piece and the fourth balance piece are opposite;
and/or the third balancing part comprises a fifth balancing piece and a sixth balancing piece; the directions of the balance forces provided by the fifth balance member and the sixth balance member are opposite;
and/or the fourth balance part comprises a seventh balance piece and an eighth balance piece; the directions of the balance forces provided by the seventh balance member and the eighth balance member are opposite.
Preferably, the first balance member is spaced from the first orbiting scroll by a distance d1 in the axial direction; the distance between the second balance piece and the first movable scroll in the axial direction is d 2; wherein d1 ≠ d 2;
and/or the third balance piece is at a distance d3 from the first movable scroll in the axial direction; the distance between the fourth balance piece and the first movable scroll in the axial direction is d 4; wherein d3 ≠ d 4;
and/or the distance between the fifth balancing piece and the second movable scroll in the axial direction is d 5; the distance between the sixth balancing piece and the second movable scroll in the axial direction is d 6; wherein d5 ≠ d 6;
and/or the distance between the seventh balance piece and the second movable scroll in the axial direction is d 7; the distance between the eighth balance piece and the second movable scroll in the axial direction is d 8; where d7 ≠ d 8.
Preferably, d1> d 2; and/or, d3> d 4; and/or, d5> d 6; and/or, d7> d 8.
Preferably, the eccentric force applied to the first compression structure in the first direction is a positive first eccentric force; the eccentric force applied to the second compression structure in the first direction is used as a reverse first eccentric force; the eccentric force received by the first compression structure in the second direction is taken as a positive second eccentric force; the eccentric force applied to the second compression structure in the second direction is used as a reverse second eccentric force;
the first balancing piece is used for providing a first balancing force in the same direction; the same direction first balance force and the positive direction first eccentric force have the same direction;
and/or the second balancing member is used for providing a reverse first balancing force; the reverse first balance force is opposite to the forward first eccentric force in direction;
and/or the third balancing member is used for providing a second balancing force in the same direction, and the direction of the second balancing force in the same direction is the same as that of the second eccentric force in the positive direction;
and/or a fourth counterbalance is used for providing a second counter-balancing force; the reverse second balance force is opposite to the direction of the forward second eccentric force;
and/or the fifth balancing piece is used for providing a third balancing force in the same direction; the same direction third balance force and the reverse direction first eccentric force have the same direction;
and/or, a sixth counterbalance is used to provide an opposing third counterbalancing force; the reverse third balance force is opposite to the reverse first eccentric force;
and/or, the seventh balancing member is used for providing a fourth balancing force in the same direction; the same direction fourth balancing force and the opposite direction second eccentric force have the same direction;
and/or, an eighth counterbalance is used to provide an opposing fourth counterbalancing force; the opposing fourth balancing force is opposite the opposing second eccentric force.
Preferably, the first balancing force is adjustable in magnitude;
and/or the second balancing force is adjustable in magnitude;
and/or the number of the first balance parts is set to be at least two;
and/or the number of the second balancing parts is set to be at least two;
and/or the number of the third balancing parts is set to be at least two;
and/or the number of the fourth balancing parts is set to be at least two.
Preferably, the first driving shaft is made of iron; and/or the second driving shaft is made of iron.
Preferably, the balance member is an electromagnetic device.
According to yet another aspect of the present application, there is provided an appliance comprising a scroll compressor as described above.
The application provides a scroll compressor carries out power and moment balance to the eccentric force of compression process, solves the eccentric force and brings the shafting atress unbalanced, alleviates the bent axle and bears local load towards fixed direction, reduces the probability of toppling of shafting.
Drawings
FIG. 1 is a cross-sectional view of a scroll compressor according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a scroll compressor according to an embodiment of the present application;
FIG. 3 is a rule of variation of a first balancing force with a rotation angle under a fixed operating condition according to an embodiment of the present application;
FIG. 4 is a second equilibrium force magnitude change law with rotation angle under a fixed operation condition according to the embodiment of the present application;
FIG. 5 is an axial profile of a balance force of an embodiment of the present application;
FIG. 6 is a circumferential profile of a balancing force for an embodiment of the present application;
FIG. 7 is a schematic diagram of the scroll eccentricity force at 0 ° of the main shaft of the embodiment of the present application;
FIG. 8 is a schematic diagram illustrating the eccentric force of the scroll when the main shaft of the embodiment of the present application is rotated 90 degrees counterclockwise;
FIG. 9 is a schematic diagram illustrating the eccentric force of the scroll when the main shaft of the embodiment of the present application is rotated 180 degrees counterclockwise;
fig. 10 is a schematic view illustrating an eccentric force of a scroll when a main shaft of an embodiment of the present application is rotated counterclockwise by 270 °.
The reference numerals are represented as:
1. a first orbiting scroll; 2. a second orbiting scroll; 3. a first drive shaft; 4. a second drive shaft; 5. a first balancing device; 6. a drive motor; 7. driving the main shaft; 8. a first drive gear; 9. a second driving gear; 10. a support structure; 11. a first driven gear; 12. a second driven gear.
Detailed Description
Referring collectively to FIGS. 1-2, in accordance with an embodiment of the present application, a scroll compressor comprises: a first compression structure including a first orbiting scroll 1, the first orbiting scroll 1 being rotated about a central axis of the first orbiting scroll 1, a second compression structure, and a balancing device; the second compression structure includes a second orbiting scroll 2, the second orbiting scroll 2 being rotated around a central axis of the second orbiting scroll; the first orbiting scroll 1 and the second orbiting scroll 2 are engaged with each other to form a compression chamber; the balancing device is used for providing a balancing force which is used for balancing eccentric force generated by the compression cavity in the compression process. The eccentric force in the compression process is subjected to force and moment balance, so that the problem of unbalanced stress of a shafting caused by the eccentric force is solved, the local load borne by the crankshaft in the fixed direction is reduced, and the overturning probability of the shafting is reduced; the problem of local bearing of a crankshaft caused by unbalanced gas force of the rotary scroll compressor can be solved; preventing shafting from overturning caused by unbalanced gas force of the rotary scroll compressor; the deformation of the crankshaft caused by the unbalanced gas force of the rotary scroll compressor is prevented; so that the bearing of the shaft system is uniform. In the rotary scroll compressor, a driving motor 6 is used for driving a driving main shaft 7 to rotate, so that a first driving gear 8 and a second driving gear 9 are driven to rotate; and further, the first driven gear 11 and the second driven gear 12 are driven to rotate, the second driven gear 12 rotates to drive the second movable scroll disk 2 to rotate, and the first driven gear 11 rotates to drive the first movable scroll disk 1 to rotate.
Referring to fig. 7-10 in combination, the first and second eccentric forces that occur at different angles of the rotary scroll compressor,
on the cross section of the compression cavity, the connecting line direction of the central axis of the first movable scroll disk 1 and the central axis of the second movable scroll disk 2 is taken as a first direction;
the scroll compressor further comprises first balancing means 5, the balancing force comprising a first balancing force; the first balancing device 5 is used for providing a first balancing force, and the first balancing force is used for balancing a first eccentric force in a first direction;
the scroll compressor further includes a second balancing device; the balance force comprises a second balance force; on the cross section of the compression cavity, the direction perpendicular to the first direction is taken as a second direction; the second balancing device is used for providing a second balancing force, and the second balancing force is used for balancing a second eccentric force in a second direction.
Further, the resultant force of the first balance force and the first eccentric force is zero;
and/or the resultant force of the second balance force and the second eccentric force is zero;
and/or the resultant moment of the first balance force and the first eccentric force is zero;
and/or the resultant moment of the second balance force and the second eccentric force is zero.
Further, the scroll compressor includes a compressor housing; the first balancing device 5 is arranged on the compressor shell; and/or the second balancing device is arranged on the compressor shell.
Further, the first compression structure further includes a first driving shaft 3, the first orbiting scroll 1 being disposed at a first end of the first driving shaft 3;
and/or, the first compression structure further includes a second driving shaft 4, and the second orbiting scroll 2 is disposed at a first end of the second driving shaft 4.
Further, the first balancing means 5 comprises a first balancing portion; the first balance portion corresponds to a position of the first compression structure in the axial direction of the first drive shaft 3; the first balance part is used for providing a first balance force for the first compression structure;
and/or the second balancing device comprises a second balancing part; the second balance portion corresponds to the position of the first compression structure in the axial direction of the first drive shaft 3; the second balance part is used for providing a second balance force for the first compression structure;
and/or the first balancing means 5 comprise a third balancing portion; the third balance portion corresponds to the position of the second compression structure in the axial direction of the second drive shaft 4; the third balance part is used for providing a first balance force for the second compression structure;
and/or the second balancing means comprises a fourth balancing portion; the fourth balance portion corresponds to the position of the second compression structure in the axial direction of the second drive shaft 4; the fourth balance portion is configured to provide a second balance force to the second compression structure.
Referring to fig. 5-6 in combination, the first balance portion includes a first balance member and a second balance member; the directions of the balance forces provided by the first balance member and the second balance member are opposite;
and/or the second balance part comprises a third balance piece and a fourth balance piece; the directions of the balance forces provided by the third balance piece and the fourth balance piece are opposite;
and/or the third balancing part comprises a fifth balancing piece and a sixth balancing piece; the directions of the balance forces provided by the fifth balance member and the sixth balance member are opposite;
and/or the fourth balance part comprises a seventh balance piece and an eighth balance piece; the directions of the balance forces provided by the seventh balance member and the eighth balance member are opposite.
Further, the first balance member is spaced from the first orbiting scroll 1 by a distance d1 in the axial direction; the second balance member is spaced from the first orbiting scroll 1 by a distance d2 in the axial direction; wherein d1 ≠ d 2;
and/or the third balance member is at a distance d3 from the first orbiting scroll 1 in the axial direction; the distance d4 between the fourth balance member and the first orbiting scroll 1 in the axial direction; wherein d3 ≠ d 4;
and/or the distance between the fifth balancing member and the second movable scroll 2 in the axial direction is d 5; the distance d6 between the sixth balance member and the second orbiting scroll 2 in the axial direction; wherein d5 ≠ d 6;
and/or the distance between the seventh balance piece and the second movable scroll 2 in the axial direction is d 7; the distance d8 between the eighth balance piece and the second orbiting scroll 2 in the axial direction; where d7 ≠ d 8.
Further, d1> d 2; and/or, d3> d 4; and/or, d5> d 6; and/or, d7> d 8.
Further, the eccentric force received by the first compression structure in the first direction is taken as a positive first eccentric force; the eccentric force applied to the second compression structure in the first direction is used as a reverse first eccentric force; the eccentric force received by the first compression structure in the second direction is taken as a positive second eccentric force; the eccentric force applied to the second compression structure in the second direction is used as a reverse second eccentric force; the reverse first eccentric force and the forward first eccentric force are equal in magnitude and opposite in direction, and the reverse second eccentric force and the forward second eccentric force are equal in magnitude and opposite in direction;
the first balancing piece is used for providing a first balancing force in the same direction; the same direction first balance force and the positive direction first eccentric force have the same direction;
and/or the second balancing member is used for providing a reverse first balancing force; the reverse first balance force is opposite to the forward first eccentric force in direction;
and/or the third balancing member is used for providing a second balancing force in the same direction, and the direction of the second balancing force in the same direction is the same as that of the second eccentric force in the positive direction;
and/or a fourth counterbalance is used for providing a second counter-balancing force; the reverse second balance force is opposite to the direction of the forward second eccentric force;
and/or the fifth balancing piece is used for providing a third balancing force in the same direction; the same direction third balance force and the reverse direction first eccentric force have the same direction;
and/or, a sixth counterbalance is used to provide an opposing third counterbalancing force; the reverse third balance force is opposite to the reverse first eccentric force;
and/or, the seventh balancing member is used for providing a fourth balancing force in the same direction; the same direction fourth balancing force and the opposite direction second eccentric force have the same direction;
and/or, an eighth counterbalance is used to provide an opposing fourth counterbalancing force; the opposing fourth balancing force is opposite the opposing second eccentric force.
Fr-first eccentric force
Fr 1-reverse first equilibrium force
Fr 2-homodromous first balance force
L0-first eccentricity force from datum plane
L1-reverse first balance force to datum distance
L2-distance of first equilibrium force from reference plane in the same direction
Note: the reference plane being an arbitrary plane
ps-suction pressure
h-vortex height
a-radius of base circle
The compression ratio is a first cavity and a second cavity … … from the center to the outside in sequence, 1 is the ratio of the first cavity pressure to the suction pressure, and i is the ratio of the ith cavity pressure to the suction pressure
Ft-second eccentric force
Ft 1-reverse second eccentric force
Ft 2-Co-directional second equilibrium force
P-vortex pitch
Theta-angle of crankshaft rotation
By the analysis of the stress of the vortex compression cavity, for the vortex plate with n compression cavities, the tangential force and the first eccentric force can be respectively expressed as follows:
Fr＝2psah(1-1)
the compression ratio is related to the working condition, under the determined working condition, the second eccentric force is related to the rotation angle theta of the main shaft, and the first eccentric force is not changed. And under a fixed working condition, the direction of the first eccentric force and the second eccentric force of the gas force on the periodic axis A does not change along with the rotation angle. Therefore, the change rule of the balance force generated by each balance device can be obtained, and is only related to the gas force and the axial installation position, wherein the reference of the axial height can be selected at will. Referring to fig. 3-4, the change rule of the balance force in the typical operation condition is shown along with the change of the rotation angle. The shafting balancing device of the embodiment can effectively solve shafting unbalance loading and overturning instability of the rotary scroll compressor caused by unbalanced gas force and reduce crankshaft deformation caused by shafting stress.
Further, the first balance force is adjustable in size;
and/or the second balancing force is adjustable in magnitude;
and/or the number of the first balance parts is set to be at least two;
and/or the number of the second balancing parts is set to be at least two;
and/or the number of the third balancing parts is set to be at least two;
and/or the number of the fourth balancing parts is set to be at least two.
Further, the first driving shaft 3 is made of iron; and/or the second driving shaft 4 is made of iron; in order to prevent other parts from being influenced by the electromagnetic device, only the driving shaft is limited to be of an iron structure, balance force can be generated on a shaft system under the influence of the electromagnetic device, and other compressor structures are made of non-magnetic materials such as aluminum and copper and are not influenced by the electromagnetic device.
Further, the balancing piece is an electromagnetic device, the electromagnetic device is an electromagnet in the prior art, the electromagnet generates magnetic force, and the magnetic force is matched with the first driving shaft 3 or the second driving shaft 4 made of iron to generate balancing force; and the balance force can be adjusted by adjusting the current magnitude, the winding path number and the like.
According to an embodiment of the application, the electric appliance comprises a scroll compressor, and the scroll compressor is the 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 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 (14)
1. A scroll compressor, comprising:
a first compression structure including a first orbiting scroll (1), the first orbiting scroll (1) being rotated about a central axis of the first orbiting scroll (1);
a second compression structure including a second orbiting scroll (2), the second orbiting scroll (2) being rotated around a central axis of the second orbiting scroll; the first movable scroll (1) and the second movable scroll (2) are engaged with each other to form a compression chamber;
a balancing device for providing a balancing force for balancing an eccentric force generated by the compression chamber during compression.
2. The scroll compressor according to claim 1, wherein in a cross section of the compression chamber, a direction of a line connecting a central axis of the first orbiting scroll (1) and a central axis of the second orbiting scroll (2) is a first direction;
the balancing device comprises a first balancing device (5); the balance force comprises a first balance force; the first balancing device (5) is used for providing the first balancing force, and the first balancing force is used for balancing a first eccentric force in the first direction;
and/or the balancing device comprises a second balancing device; the balance force comprises a second balance force; on the cross section of the compression cavity, the direction perpendicular to the first direction is a second direction; the second balancing device is used for providing the second balancing force, and the second balancing force is used for balancing a second eccentric force in the second direction.
3. The scroll compressor of claim 2, wherein a resultant force of the first balancing force and the first eccentric force is zero;
and/or the resultant force of the second balance force and the second eccentric force is zero;
and/or the resultant moment of the first balance force and the first eccentric force is zero;
and/or the resultant moment of the second balance force and the second eccentric force is zero.
4. The scroll compressor of claim 2, wherein the scroll compressor comprises a compressor housing; the first balancing device (5) is arranged on the compressor shell; and/or the second balancing device is arranged on the compressor shell.
5. The scroll compressor according to claim 2, wherein the first compression structure further comprises a first driving shaft (3), the first orbiting scroll (1) being provided at a first end of the first driving shaft (3);
and/or the second compression structure further comprises a second driving shaft (4), and the second movable scroll (2) is arranged at the first end of the second driving shaft (4).
6. A scroll compressor according to claim 5, wherein the first balancing means (5) comprises a first balancing portion; the first balance portion corresponds to a position of a first compression structure in an axial direction of the first drive shaft (3); the first balance portion is configured to provide the first balance force to the first compression structure;
and/or the second balancing device comprises a second balancing part; the second balance portion corresponds to a position of the first compression structure in an axial direction of the first drive shaft (3); the second balance portion is configured to provide the second balance force to the first compression structure;
and/or the first balancing device (5) comprises a third balancing portion; the third balance portion corresponds to a position of the second compression structure in the axial direction of the second drive shaft (4); the third balance portion is configured to provide the first balance force to the second compression structure;
and/or the second balancing means comprises a fourth balancing portion; the fourth balance portion corresponds to a position of the second compression structure in the axial direction of the second drive shaft (4); the fourth balance portion is configured to provide the second balance force to the second compression structure.
7. The scroll compressor of claim 6, wherein the first counterweight includes a first counterweight and a second counterweight; the directions of the balance forces provided by the first balance piece and the second balance piece are opposite;
and/or the second balance part comprises a third balance piece and a fourth balance piece; the directions of the balance forces provided by the third balance piece and the fourth balance piece are opposite;
and/or the third balance part comprises a fifth balance piece and a sixth balance piece; the directions of the balance forces provided by the fifth balance piece and the sixth balance piece are opposite;
and/or the fourth balance part comprises a seventh balance piece and an eighth balance piece; the directions of the balance forces provided by the seventh balance member and the eighth balance member are opposite.
8. A scroll compressor as claimed in claim 7, wherein the first balance member is spaced from the first orbiting scroll (1) by a distance d1 in the axial direction; the second balance part is at a distance d2 from the first movable scroll (1) in the axial direction; wherein d1 ≠ d 2;
and/or the third balance part is at a distance d3 from the first movable scroll (1) in the axial direction; the fourth balance part is at a distance d4 from the first movable scroll (1) in the axial direction; wherein d3 ≠ d 4;
and/or the distance between the fifth balancing piece and the second movable scroll (2) in the axial direction is d 5; the distance between the sixth balancing member and the second movable scroll (2) in the axial direction is d 6; wherein d5 ≠ d 6;
and/or the seventh balance piece is at a distance d7 from the second movable scroll (2) in the axial direction; the eighth balance member is spaced from the second orbiting scroll (2) by a distance d8 in the axial direction; where d7 ≠ d 8.
9. The scroll compressor of claim 8, wherein d1> d 2; and/or, d3> d 4; and/or, d5> d 6; and/or, d7> d 8.
10. The scroll compressor of claim 9, wherein the eccentric force experienced by the first compression structure in the first direction is a positive first eccentric force; the eccentric force received by the second compression structure in the first direction is used as a reverse first eccentric force; the eccentric force received by the first compression structure in the second direction is taken as a positive second eccentric force; the eccentric force applied to the second compression structure in the second direction is taken as a reverse second eccentric force;
the first balancing piece is used for providing a first balancing force in the same direction; the same-direction first balance force and the positive-direction first eccentric force have the same direction;
and/or the second balancing member is used for providing a reverse first balancing force; the reverse first balance force is opposite to the forward first eccentric force in direction;
and/or the third balancing member is used for providing a second balancing force in the same direction, and the second balancing force in the same direction is in the same direction as the positive second eccentric force;
and/or the fourth balancing member is used for providing a second balancing force in the opposite direction; the reverse second balance force is opposite to the direction of the forward second eccentric force;
and/or the fifth balancing piece is used for providing a third balancing force in the same direction; the same-direction third balance force and the reverse first eccentric force have the same direction;
and/or the sixth counterbalance is used for providing a third counter-balancing force; the opposing third balance force is opposite in direction to the opposing first eccentric force;
and/or the seventh balancing member is used for providing a fourth balancing force in the same direction; the same-direction fourth balancing force and the opposite-direction second eccentric force have the same direction;
and/or, the eighth counterbalance is configured to provide an opposing fourth counterbalancing force; the opposing fourth balancing force is opposite in direction to the opposing second eccentric force.
11. The scroll compressor of claim 6, wherein the first balancing force is adjustable in magnitude;
and/or the second balancing force is adjustable in magnitude;
and/or the number of the first balance parts is set to be at least two;
and/or the number of the second balancing parts is set to be at least two;
and/or the number of the third balancing parts is set to be at least two;
and/or the number of the fourth balancing parts is set to be at least two.
12. A scroll compressor as claimed in claim 7, characterised in that the material of the first drive shaft (3) is iron; and/or the second driving shaft (4) is made of iron.
13. The scroll compressor of claim 12, wherein the balance is an electromagnetic device.
14. An appliance comprising a scroll compressor, wherein the scroll compressor is a scroll compressor as claimed in any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642343.3A CN111765078A (en) | 2020-07-06 | 2020-07-06 | Scroll compressor and electric appliance with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642343.3A CN111765078A (en) | 2020-07-06 | 2020-07-06 | Scroll compressor and electric appliance with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111765078A true CN111765078A (en) | 2020-10-13 |
Family
ID=72724689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010642343.3A Pending CN111765078A (en) | 2020-07-06 | 2020-07-06 | Scroll compressor and electric appliance with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111765078A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220268281A1 (en) * | 2021-02-24 | 2022-08-25 | Air Squared, Inc. | High-speed gear-driven spinning scroll |
| US11692550B2 (en) | 2016-12-06 | 2023-07-04 | Air Squared, Inc. | Scroll type device having liquid cooling through idler shafts |
| US11885328B2 (en) | 2021-07-19 | 2024-01-30 | Air Squared, Inc. | Scroll device with an integrated cooling loop |
| US11898557B2 (en) | 2020-11-30 | 2024-02-13 | Air Squared, Inc. | Liquid cooling of a scroll type compressor with liquid supply through the crankshaft |
| US11933299B2 (en) | 2018-07-17 | 2024-03-19 | Air Squared, Inc. | Dual drive co-rotating spinning scroll compressor or expander |
-
2020
- 2020-07-06 CN CN202010642343.3A patent/CN111765078A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11692550B2 (en) | 2016-12-06 | 2023-07-04 | Air Squared, Inc. | Scroll type device having liquid cooling through idler shafts |
| US11933299B2 (en) | 2018-07-17 | 2024-03-19 | Air Squared, Inc. | Dual drive co-rotating spinning scroll compressor or expander |
| US11898557B2 (en) | 2020-11-30 | 2024-02-13 | Air Squared, Inc. | Liquid cooling of a scroll type compressor with liquid supply through the crankshaft |
| US20220268281A1 (en) * | 2021-02-24 | 2022-08-25 | Air Squared, Inc. | High-speed gear-driven spinning scroll |
| US11885328B2 (en) | 2021-07-19 | 2024-01-30 | Air Squared, Inc. | Scroll device with an integrated cooling loop |
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