CN110566455B - A scroll compressor and air conditioner - Google Patents
A scroll compressor and air conditioner Download PDFInfo
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- CN110566455B CN110566455B CN201910824676.5A CN201910824676A CN110566455B CN 110566455 B CN110566455 B CN 110566455B CN 201910824676 A CN201910824676 A CN 201910824676A CN 110566455 B CN110566455 B CN 110566455B
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- scroll compressor
- extension
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- wall
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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
- F04C18/0215—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 only one member is 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
- F04C18/0269—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
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
本发明提供一种涡旋压缩机和空调器，其包括：动涡盘(21)、曲轴(18)和主平衡块(8)，在动涡盘(21)上以朝向主平衡块(8)的方向凸出地设置有凸出部(100)，主平衡块(8)上设置有滑动部(6)，滑动部(6)的径向一侧通过弹性部件(7)与主平衡块(8)连接、径向另一侧与凸出部(100)相对，且能在曲轴(18)转速低于预设转速时滑动部(6)与凸出部(100)不接触，曲轴(18)转速高于预设转速时滑动部(6)与凸出部(100)接触。通过本发明能够实现与动盘对向布置且随旋转轴旋转的滑动部抵消部分甚至全部动盘离心力，使得动、静涡盘之间的摩擦降低，解决涡旋压缩机在高转速下动盘离心力偏大的问题。
The present invention provides a scroll compressor and an air conditioner, comprising: a movable scroll (21), a crankshaft (18) and a main balance weight (8), on the movable scroll (21) facing the main balance weight (8) A protruding part (100) is provided protruding in the direction of the (8) connected, the other side in the radial direction is opposite to the protruding part (100), and the sliding part (6) and the protruding part (100) can not be in contact with the crankshaft (18) when the rotation speed of the crankshaft (18) is lower than the preset rotation speed. 18) When the rotational speed is higher than the preset rotational speed, the sliding part (6) is in contact with the protruding part (100). The invention can realize that the sliding part arranged opposite to the moving plate and rotates with the rotating shaft can offset part or all of the centrifugal force of the moving plate, so as to reduce the friction between the moving and stationary scrolls, and solve the problem of the scroll compressor moving the plate at a high speed. The problem of excessive centrifugal force.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a scroll compressor and an air conditioner.
Background
The scroll compressor has the advantages of simple structure, small volume, light weight, low noise, high mechanical efficiency, stable operation and the like. For scroll compressor, in the use, when the rotational speed is higher, move the whirlpool dish and can mesh on quiet whirlpool dish with great power under the centrifugal force effect, can aggravate like this and move, the static friction of whirlpool between the whirlpool dish, and then increase the compressor consumption, influence the promotion of compressor performance, still can cause the compressor to damage because of the friction when serious.
The scroll compressor in the prior art has the technical problems that the performance of the scroll compressor is reduced and even damaged due to the fact that friction between a movable scroll and a fixed scroll is intensified because the engaging force of the movable scroll and the fixed scroll is larger at a high rotating speed, and the like.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the friction between a movable scroll and a fixed scroll is intensified due to large meshing force of the movable scroll and the fixed scroll at high rotating speed of the scroll compressor in the prior art, thereby providing the scroll compressor and the air conditioner.
The present invention provides a scroll compressor, including:
the movable scroll disc is arranged at the end of the crankshaft, the main balance block is sleeved on the crankshaft, a protruding portion is arranged on the movable scroll disc in a protruding mode towards the main balance block, a sliding portion is arranged on the main balance block, one radial side of the sliding portion is connected with the main balance block through an elastic component, the other radial side of the sliding portion is opposite to the protruding portion, the sliding portion is not in contact with the protruding portion when the rotating speed of the crankshaft is lower than a preset rotating speed, and the sliding portion is in contact with the protruding portion when the rotating speed of the crankshaft is higher than the preset rotating speed.
Preferably, the first and second electrodes are formed of a metal,
move the whirlpool dish including can with the bearing frame that the tip of bent axle cup jointed the setting, the bulge includes first supporting part, first supporting part with the bearing frame meets the setting, perhaps first supporting part is in move the whirlpool not set up and move and set up on the axial terminal surface of whirlpool, go on in the first supporting part main balancing piece's direction protrusion is provided with first extension with extending, the radial inboard of first extension have with the sliding part is relative and can with the first inner wall of sliding part contact.
Preferably, the first and second electrodes are formed of a metal,
the first extending part is a stretching rib with an arc-shaped cross section, the first supporting part is of a fan-shaped or semicircular plate-shaped structure with a sector-shaped or semicircular cross section, and the first extending part is connected with the arc-shaped outer circumference of the first supporting part and matched with the arc-shaped outer circumference of the first supporting part in shape.
Preferably, the first and second electrodes are formed of a metal,
the bulge is split type structure, including third supporting part and fourth supporting part, be provided with the third extension along axial extension on the third supporting part, be provided with the fourth extension along axial extension on the fourth supporting part, the third supporting part with the fourth supporting part can splice as a whole, simultaneously the third extension with the fourth extension also splices as a whole.
Preferably, the first and second electrodes are formed of a metal,
the bulge still include with the first part loop construction that the third supporting part links to each other and with the second part loop construction that the fourth supporting part links to each other, first part loop construction with the second part loop construction can splice into a whole ring, just move the whirlpool dish including can with the bearing frame that the tip of bent axle cup jointed the setting annular groove has been seted up to the outer wall indent of bearing frame, whole ring with annular groove shape matches and can block and locate in the annular groove.
Preferably, the first and second electrodes are formed of a metal,
the first partial ring structure is provided with a through hole, the second partial ring structure is provided with a threaded hole, and a bolt or a screw can be allowed to simultaneously penetrate through the through hole and the threaded hole to fixedly connect the first partial ring structure and the second partial ring structure.
Preferably, the first and second electrodes are formed of a metal,
the main balance weight is further provided with a second supporting part in a protruding manner in the direction towards the movable scroll, the second supporting part is provided with a second extending part extending in the axial direction, the second supporting part is provided with a first supporting platform extending in the radial direction, and the sliding part is supported by the first supporting platform.
Preferably, the first and second electrodes are formed of a metal,
the two ends of the second extending part are respectively connected with a first guide plate, and the first guide plates are also formed by extending from the second supporting part in the axial direction so as to guide and limit the sliding part.
Preferably, the first and second electrodes are formed of a metal,
the elastic member is disposed between the second extending portion and the sliding portion, the sliding portion is located on a radially outer side, and the second extending portion is located on a radially inner side.
Preferably, the first and second electrodes are formed of a metal,
the elastic component is a spring, one end of the spring is fixedly connected to the second extending part, and the other end of the spring is fixedly connected to the sliding part.
Preferably, the first and second electrodes are formed of a metal,
and a first spring connecting port capable of fixedly connecting the spring is arranged on the radial outer wall of the second extension part.
Preferably, the first and second electrodes are formed of a metal,
first supporting bench is fan-shaped or semicircular platelike structure for shape of cross section, just the sliding part is fan-shaped plate structure for shape of cross section, includes radial inner wall and radial outer wall, it can be right to be provided with on the radial inner wall the spring carries out fixed connection's second spring connector, radial outer wall can with the bulge contact.
Preferably, the first and second electrodes are formed of a metal,
and a second support platform is concavely arranged on the surface of the main balance block opposite to the movable scroll in a direction deviating from the movable scroll, the sliding part is supported by the second support platform, and second guide walls capable of guiding and limiting the sliding part are formed on two circumferential sides of the second support platform.
The invention also provides an air conditioner, which comprises the variable-capacity compression structure or the compressor.
The scroll compressor and the air conditioner provided by the invention have the following beneficial effects:
the invention sets a convex part protruding towards the main balance block on the movable scroll disk, sets a sliding part on the main balance block, and an elastic part connected between the main balance block and the sliding part, the sliding part is opposite to the convex part and can not contact with the convex part when the rotating speed of the crankshaft is not high, and contacts with the convex part when the rotating speed of the crankshaft is too high, and can transmit the force in the radial direction to the convex part on the movable scroll disk through the main balance part, the elastic part and the sliding part when the rotating speed of the crankshaft is too high, thereby realizing that the sliding part arranged opposite to the movable disk and rotating along with the rotating shaft offsets partial or even all centrifugal force of the movable disk, solving the problem that the centrifugal force of the movable disk of the scroll compressor is larger at high rotating speed, reducing the friction between the movable scroll disk and the static scroll disk, further improving the running performance and reliability of the compressor, and improving the performance.
Drawings
FIG. 1 is a schematic view of a scroll compressor according to a first embodiment of the present invention;
FIG. 2 is a schematic view of an orbiting scroll according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a main balance weight according to a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a centrifugal slider according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram of a spring structure according to a first embodiment of the present invention;
FIG. 6 is a schematic view of an assembly of a main balance block, a centrifugal slider and a spring according to a first embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a main balance weight according to a second embodiment of the present invention;
FIG. 8 is a schematic structural view of a split movable scroll according to a third embodiment of the present invention;
FIG. 9 is a schematic view of a first radial split part according to a third embodiment of the present invention;
fig. 10 is a schematic structural view of a second radial split portion according to a third embodiment of the present invention;
fig. 11 is an assembly relationship diagram of the third embodiment of the present invention.
The reference numbers in the figures denote:
100. a projection; 101. a third support portion; 102. a fourth support portion; 103. a third extension portion; 104. a fourth extension portion; 1. an upper cover; 2. a partition plate; 3. an upper housing; 4. a cross slip ring; 5. a support plate; 6. a sliding portion (preferably a centrifugal slider); 601. a second spring connection port; 602. a radially inner wall; 603. a radially outer wall; 7. an elastic member (preferably a spring); 8. a primary counterbalance; 801. a second support portion; 802. a first support table; 803. a first guide plate; 804. a first spring connection port; 805. a second extension portion; 802', a second support table; 803', a second guide wall; 804' and a third spring connecting port; 805', an extension wall; 9. an upper bracket; 10. a motor; 11. a motor fixing frame; 12. a lower housing; 13. a lower support ring; 14. a lower cover; 15. a lower bracket; 16. a lower bearing; 17. an air suction port; 18. a crankshaft; 19. a rotor; 20. an eccentric sleeve; 21. a movable scroll pan; 2101. a bearing seat; 2102. a first support section; 2103. a first extension portion; 2104. a first inner wall; 2105. an annular groove; 22. a static scroll pan; 23. a sealing cover; 24. an exhaust pipe; 25. a check valve; 26. a first partial ring structure; 2601. a through hole; 2602. a first semi-circular face; 2603. a first plane; 2604. a second plane; 2605. a first inner wall; 27. a second partial ring structure; 2701. a threaded hole; 2702. a second semi-circular surface; 2703. a third plane; 2704. a fourth plane; 2705. a second inner wall; 28. a screw; 200. and an exhaust cavity.
Detailed Description
The present invention provides a scroll compressor, including:
as shown in fig. 1, the scroll compressor is mainly composed of a motor 10, an upper bracket 9, a lower bracket 15, a fixed scroll 22, an orbiting scroll 21, an oldham ring 4, a crankshaft 18, and the like. The motor 10 is fixed on the lower shell 12 through a motor fixing frame 11, and the upper bracket 9 is fixed on the lower shell 12 through interference fit and axial thrust. The movable scroll 21 and the fixed scroll 22 are oppositely arranged on the upper bracket 9 with a phase angle difference of 180 degrees, the movable scroll 21 moves under the driving of the crankshaft 18 and is engaged with the fixed scroll 22 to form a series of crescent closed cavities which are mutually isolated and continuously changed in volume. The sealing cover 23 is installed on the back of the fixed scroll 22, and the sealing cover 23 can axially float to form a sealed exhaust passage with the partition plate 2 during the operation of the compressor. It should be noted that the fixed scroll 22 has axial flexibility, i.e. can axially float, but in normal operation, the fixed scroll 22 is tightly pressed on the movable scroll 21 by the axial force of the gas in the middle pressure cavity formed by the sealing cover 23 and the back surface of the fixed scroll 22, the movable scroll 21 is tightly pressed on the supporting plate 5 on the upper bracket 9 due to the action of the high pressure gas in the compression cavity and the acting force of the fixed scroll 22, and the supporting plate 5 is fixed on the upper bracket 9 through screws. The partition plate 2 and the upper cover 1 are fixed on the upper casing 3 by welding, the partition plate 2 and the upper cover 1 form a high-pressure exhaust chamber 200, and the upper casing 3 and the lower casing 12 are fixed together by welding.
When the compressor runs, the motor 10 drives the crankshaft 18 to rotate, the crank section of the crankshaft 18 is provided with the eccentric sleeve 20 with radial flexibility, the eccentric sleeve 20 drives the movable scroll disc 21 to move, and the movable scroll disc 21 makes translational motion around the center of the crankshaft with a fixed radius under the limitation of autorotation prevention of the cross slip ring 4. Refrigerant entering from the outside of the compressor is sucked into a crescent suction chamber formed by the orbiting scroll 21 and the fixed scroll 22, is compressed, enters a high pressure chamber formed by the upper cover 1 and the partition plate 2 through a discharge hole of the fixed scroll 22 and a check valve 25, and is discharged through a discharge pipe 24.
The rotary compressor comprises a movable scroll 21, a crankshaft 18 and a main balance weight 8, wherein the movable scroll 21 is arranged at the end part of the crankshaft 18, the main balance weight 8 is sleeved on the crankshaft 18, a protruding part 100 is convexly arranged on the movable scroll 21 in the direction towards the main balance weight 8, a sliding part 6 (preferably a centrifugal slider) is arranged on the main balance weight 8, one radial side of the sliding part 6 is connected with the main balance weight 8 through an elastic part 7, the other radial side of the sliding part 6 is opposite to the protruding part 100, the sliding part 6 is not in contact with the protruding part 100 when the rotating speed of the crankshaft 18 is lower than a preset rotating speed, and the sliding part 6 is in contact with the protruding part 100 when the rotating speed of the crankshaft 18 is higher than the preset rotating speed.
The invention sets a convex part protruding towards the main balance block on the movable scroll disk, sets a sliding part on the main balance block, and an elastic part connected between the main balance block and the sliding part, the sliding part is opposite to the convex part and can not contact with the convex part when the rotating speed of the crankshaft is not high, and contacts with the convex part when the rotating speed of the crankshaft is too high, and can transmit the force in the radial direction to the convex part on the movable scroll disk through the main balance part, the elastic part and the sliding part when the rotating speed of the crankshaft is too high, thereby realizing that the sliding part arranged opposite to the movable disk and rotating along with the rotating shaft offsets partial or even all centrifugal force of the movable disk, solving the problem that the centrifugal force of the movable disk of the scroll compressor is larger at high rotating speed, reducing the friction between the movable scroll disk and the static scroll disk, further improving the running performance and reliability of the compressor, and improving the performance.
Example 1
As shown in fig. 1-7, preferably,
the movable scroll 21 includes a bearing seat 2101 that can be set in a sleeving manner with an end of the crankshaft 18, the protruding portion 100 includes a first supporting portion 2102, the first supporting portion 2102 is set in contact with the bearing seat 2101 (the first supporting portion has a certain distance from an axial end surface, but is parallel to the axial end surface, embodiment 1), or the first supporting portion 2102 is set on the axial end surface of the movable scroll 21 where the movable scroll is not set, the first supporting portion 2102 is provided with a first extending portion 2103 protruding toward the main balance weight 8, and a first inner wall 2104 that is opposite to the sliding portion 6 and can be in contact with the sliding portion 6 is provided on a radial inner side of the first extending portion 2103. The preferred structure form of embodiment 1 of the invention is that the first supporting part is connected with the bearing seat, which can ensure that the arc-shaped rib and the movable scroll disk are manufactured as concentric as possible, so that the inner side surface of the arc-shaped rib and the radial outer side surface of the sliding block can realize the same radian, thereby achieving complete fitting and achieving the effect of improving radial thrust. The first extension part can be connected through the first support part and plays a supporting role, the radial first inner wall 2104 of the first extension part can be in contact with the sliding part in the radial direction when the rotating speed of the crankshaft is too high, radial outward radial force is exerted by the centrifugal slider, the friction force between the movable scroll disk and the fixed scroll disk is effectively reduced, the centrifugal force is reduced, and the running performance of the compressor is improved. The first support part of the protrusion may be provided to protrude downward from the lower end surface of the orbiting scroll.
Preferably, the first and second electrodes are formed of a metal,
the first extending portion 2103 is an elongated rib having an arc-shaped cross section, the first supporting portion 2102 is a plate-shaped structure having a fan-shaped or semicircular cross section, and the first extending portion 2103 is connected to the outer arc-shaped circumference of the first supporting portion 2102 and has an arc-shaped shape matching the outer arc-shaped circumference. This is a further preferred form of the first extension part of embodiment 1 of the present invention, as shown in fig. 2, it is an arc-shaped stretching rib, preferably a semi-circular arc, connected to the first support part in the shape of a sector or a semi-circular plate, and both of them can be made integrally, so as to form a containing space for the movement of the centrifugal slider, and make the centrifugal slider located within the height range of the arc-shaped rib in the axial direction, so as to be able to abut against the radial inner wall of the rib, providing the function of radial thrust.
Preferably, the first and second electrodes are formed of a metal,
as shown in fig. 3, a second support portion 801 is further provided on the main weight 8 to protrude in a direction toward the orbiting scroll 21, a second extension portion 805 is provided on the second support portion 801 to extend in an axial direction, a first support table 802 is provided on the second support portion 801 to extend in a radial direction, and the slide portion 6 is supported by the first support table 802. This is a preferred form of the structure of the main balance weight opposite to the protruding portion on the movable scroll in embodiment 1 of the present invention, that is, the centrifugal slider (sliding portion) can be placed on the main balance weight through the second supporting portion, the second extending portion can correspond to the axial height of the sliding portion and the height direction of the first extending portion on the protruding portion, so that the centrifugal slider is located in the space surrounded by the first extending portion and the second extending portion, the elastic component connected through the second extending portion can apply a radial force to the slider, and finally, the radial force is transmitted to the first extending portion, so that a radial force is applied to the movable scroll, the centrifugal force is reduced, and the friction is reduced.
Preferably, the first and second electrodes are formed of a metal,
Preferably, the first and second electrodes are formed of a metal,
the elastic member 7 is provided between the second extending portion 805 and the slide portion 6, the slide portion 6 being located radially outward, and the second extending portion 805 being located radially inward. The elastic member is arranged between the second extending part and the sliding part, so that the elastic member can be fixed through the radial inner wall of the second extending part, and the elastic member applies elastic force in the radial direction, particularly the radial outer side to the sliding block, so that the centrifugal force of the movable scroll is reduced.
Preferably, the first and second electrodes are formed of a metal,
the elastic member 7 is a spring, one end of the spring is fixedly connected to the second extending portion 805, and the other end of the spring is fixedly connected to the sliding portion 6. This is a preferred embodiment of the elastic element according to the invention and a preferred manner of fastening.
Preferably, the first and second electrodes are formed of a metal,
a first spring connection port 804 capable of fixedly connecting the spring is disposed at a radial outer wall of the second extension 805. This is a preferable fixing structure for fixing the second extension part to the spring in embodiment 1 of the present invention, and the first spring connection port can provide a fixing function to one end of the spring.
Preferably, the first and second electrodes are formed of a metal,
first supporting bench 802 is fan-shaped or semicircular plate-shaped structure for the cross sectional shape, just sliding part 6 is fan-shaped plate structure for the cross sectional shape, includes radial inner wall 602 and radial outer wall 603, be provided with on the radial inner wall 602 can be right the spring carries out fixed connection's second spring connector 601, radial outer wall 603 can with bulge 100 contacts. The first supporting platform and the sliding part are in the preferred shapes in embodiment 1 of the invention, namely, the fan-shaped first supporting platform can be matched with the fan-shaped annular sliding part in shape, and is completely attached and connected with the inner wall of the first extending part on the movable scroll disk in the process of moving in the radial direction, so that the driving force is maximized, and the effect of reducing the friction force and the centrifugal force is improved.
As shown in fig. 2, a first supporting portion 2102 parallel to the orbiting scroll base plate connected to a bearing housing 2101, a first extending portion 2103 extending in the opposite direction of the orbiting scroll base plate, and a first inner wall 2104 contactable with a sliding portion 6 (centrifugal slider) on the first extending portion 2103 are provided on the bearing housing on the orbiting scroll 21; as shown in fig. 3, in the first embodiment of the present invention, a second supporting portion 801, a first supporting platform 802, a first guide plate 803, and a first spring connecting port 804 are provided on the main balance weight 8, wherein the first supporting platform 802 (centrifugal slider supporting platform) and the first guide plate 803 (centrifugal slider guide groove) are disposed to be opposed to the orbiting scroll 21 (i.e., disposed at 180 degrees); as shown in fig. 4, the centrifugal slider is shaped as a partial ring, and is provided with a second spring connection port 601, a radial inner wall 602 and a radial outer wall 603, the centrifugal slider is shaped to be able to cooperate with a first support platform 802 and a first guide plate 803 on the balance block, and the centrifugal slider can slide in the radial direction when the compressor rotates; the shape of the spring is as shown in fig. 5, two ends of the spring are respectively fixedly connected with a second spring connecting port 601 on the centrifugal slider and a first spring connecting port 804 on the main balance weight 8, the specific matching situation is as shown in fig. 6, and the spring is set to make the radial outer wall 603 of the centrifugal slider not contact with the first inner wall 2104 on the movable scroll supporting part at low speed, but the radial outer wall 603 and the first inner wall 2104 on the movable scroll supporting part at high speed can contact, and most of centrifugal force of the centrifugal slider is transferred to the first inner wall 2104 on the movable scroll supporting part, so that partial or even all centrifugal force generated by rotation of the movable scroll is offset, the friction force between the movable scroll 21 and the fixed scroll 22 is reduced.
Example 2
As shown in fig. 7, in this embodiment, only the structures of the second supporting portion and the second extending portion of the main weight are changed based on embodiment 1, and other structures are similar to those of embodiment 1, preferably,
a second support base 802 'is concavely provided on a surface of the main balance 8 facing the orbiting scroll 21 in a direction away from the orbiting scroll 21, the sliding portion 6 is supported by the second support base 802', an extension wall 805 'extending in the axial direction is provided on a radially inner side of the second support base 802', and a third spring connection port 804 'fixedly connected to the elastic member 7 is provided on the extension wall 805'. The structure of the main balance block opposite to the protruding portion on the movable scroll in embodiment 2 of the present invention is preferably formed in a manner of recess, that is, the second support table can receive the centrifugal slider (sliding portion) thereon, and the extending wall can correspond to the axial height of the sliding portion and the height direction of the first extending portion on the protruding portion, so that the centrifugal slider is located in a space surrounded by the first extending portion and the extending wall, and the elastic component is connected to the extending wall to apply a radial force to the slider, and finally, the radial force is transmitted to the first extending portion, so that a radial force is applied to the movable scroll, the centrifugal force is reduced, and the friction is reduced.
Preferably, the first and second electrodes are formed of a metal,
second guide walls 803 'capable of guiding and restricting the slide portion 6 are formed on both sides of the second support base 802' in the circumferential direction. The second guide wall can guide and limit the movement of the centrifugal slide block, so that the centrifugal slide block can not be separated from a space between the first extension part and the extension wall, and the centrifugal slide block can move along the radial direction in the rotating movement to apply radial force to the movable scroll disk.
In the present invention, the centrifugal slider may be directly assembled in a groove on the main balance weight, as shown in fig. 7, the second support portion 801 is eliminated, and the centrifugal slider support groove bottom (i.e. the second support platform 802 '), the second guide wall 803 ' (the centrifugal slider guide groove), and the third spring connection port 804 ' are disposed on the main balance weight, so as to achieve the assembly of the main balance weight, the spring, and the centrifugal slider.
Example 3
As shown in fig. 8-11, this embodiment is based on embodiment 1, only the structure of the protruding portion on the orbiting scroll is changed, the protruding portion is made into a separate structure, and other embodiments are the same as embodiments 1 and 2, preferably,
the protruding part 100 is of a split structure and comprises a third supporting part 101 and a fourth supporting part 102, a third extending part 103 is axially extended from the third supporting part 101, a fourth extending part 104 is axially extended from the fourth supporting part 102, and the third supporting part 101 and the fourth supporting part 102 can be spliced into a whole and the third extending part 103 and the fourth extending part 104 are also spliced into a whole. The split third supporting part and the split fourth supporting part can be spliced into a whole, the third extending part on the third supporting part and the fourth extending part on the fourth supporting part are also spliced into a whole, and the third extending part and the fourth extending part on the fourth supporting part act on the sliding block on the balance block together after being spliced.
Preferably, the first and second electrodes are formed of a metal,
the protruding portion 100 further includes a first partial ring structure 26 connected to the third supporting portion 101 and a second partial ring structure 27 connected to the fourth supporting portion 102, the first partial ring structure 26 and the second partial ring structure 27 can be spliced into a whole circular ring, the movable scroll 21 includes a bearing seat 2101 capable of being sleeved on an end of the crankshaft 18, an annular groove 2105 is concavely formed in an outer wall of the bearing seat 2101, and the whole circular ring is matched with the annular groove 2105 in shape and can be clamped in the annular groove 2105. The first partial ring structure connected with the third supporting part can be spliced with the second partial ring structure connected with the fourth supporting part, so that the circular ring is sleeved on the bearing seat in a split mode, the assembly of the circular ring with the movable scroll disk is completed, the circular ring is convenient to assemble and disassemble, the extending part formed by splicing the circular ring and the extending part extending downwards can act on the sliding block on the main balance block, and the effect of reducing the centrifugal force and the friction force is achieved.
Preferably, the first and second electrodes are formed of a metal,
the first partial ring structure 26 is provided with a through hole 2601, and the second partial ring structure 27 is provided with a threaded hole 2701, so that a bolt or a screw can be allowed to pass through the through hole 2601 and the threaded hole 2701 at the same time to fixedly connect the first partial ring structure 26 and the second partial ring structure 27. The effect of connecting the two ring structures together can be realized through the structural style of through-hole, screw hole, bolt, screw.
The invention also provides an air conditioner which comprises the scroll compressor. The invention sets a convex part protruding towards the main balance block on the movable scroll disk, sets a sliding part on the main balance block, and an elastic part connected between the main balance block and the sliding part, the sliding part is opposite to the convex part and can not contact with the convex part when the rotating speed of the crankshaft is not high, and contacts with the convex part when the rotating speed of the crankshaft is too high, and can transmit the force in the radial direction to the convex part on the movable scroll disk through the main balance part, the elastic part and the sliding part when the rotating speed of the crankshaft is too high, thereby realizing that the sliding part arranged opposite to the movable disk and rotating along with the rotating shaft offsets partial or even all centrifugal force of the movable disk, solving the problem that the centrifugal force of the movable disk of the scroll compressor is larger at high rotating speed, reducing the friction between the movable scroll disk and the static scroll disk, further improving the running performance and reliability of the compressor, and improving the performance.
The invention can also arrange the movable scroll into a split structure, namely, the movable scroll is divided into a split movable scroll 21 (shown in figure 8), a radial split part I (shown in figure 9) and a radial split part II (shown in figure 10). Wherein: an annular groove 2105 is arranged on a bearing seat 2101 of the split movable scroll disc 21; a through hole 2601, a first semicircular surface 2602, a first flat surface 2603, and a second flat surface 2604 (both in the same diametrical direction of the first semicircular surface 2602), a first inner wall 2605; the second partial ring structure 27 (radial split portion two) is provided with a screw hole 2701, a second semicircular surface 2702, a third plane 2703, a fourth plane 2704 (all in the same diameter direction of the second semicircular surface 2702), and a second inner wall 2705. During assembly, the first semicircular surface 2602 and the second semicircular surface 2702 of the first radial split portion and the second radial split portion are respectively clamped into the annular groove 2105 on the split movable scroll 21 and then locked together by the screw 28, and the first inner wall 2605 and the second inner wall 2705 are combined together to provide a thrust force for the centrifugal slider, wherein the specific assembly condition is shown in fig. 11.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, 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 invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (15)
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| CN201910824676.5A CN110566455B (en) | 2019-09-02 | 2019-09-02 | A scroll compressor and air conditioner |
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| CN201910824676.5A CN110566455B (en) | 2019-09-02 | 2019-09-02 | A scroll compressor and air conditioner |
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| CN110566455B true CN110566455B (en) | 2021-03-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027754A (en) * | 2021-03-01 | 2021-06-25 | 湖南贝特新能源科技有限公司 | Scroll compressor |
| CN112922834B (en) * | 2021-03-29 | 2025-12-19 | 广东美芝制冷设备有限公司 | Balance weight, scroll compressor and air conditioner |
| WO2022205783A1 (en) * | 2021-03-29 | 2022-10-06 | 广东美芝制冷设备有限公司 | Balance block, scroll compressor, and air conditioner |
| CN115143182B (en) * | 2021-03-30 | 2023-09-01 | 广州汽车集团股份有限公司 | Crankshaft structure and engine using same |
| CN116838604A (en) * | 2022-03-23 | 2023-10-03 | 日立江森自控空调有限公司 | compressor |
| CN115419596B (en) * | 2022-09-06 | 2025-05-16 | 珠海凌达压缩机有限公司 | Compressor and air conditioner |
| CN115370570B (en) * | 2022-09-14 | 2025-05-02 | 珠海格力电器股份有限公司 | Compression structure, scroll compressor, air conditioner |
| CN118030527A (en) * | 2022-11-02 | 2024-05-14 | 比泽尔制冷技术（中国）有限公司 | Scroll compressor and method for assembling scroll compressor |
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| CN110566455A (en) | 2019-12-13 |
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Application publication date: 20191213 Contract record no.: X2025980046593 Denomination of invention: A vortex compressor and an air conditioner Granted publication date: 20210302 License type: Common License Record date: 20251231 |