阅读说明：本技术 一种涡旋压缩机和空调器 (Scroll compressor and air conditioner ) 是由 魏会军 李立民 曹贞文 郭求和 余世顺 马亚鹏 刘虹志 于 2019-09-02 设计创作，主要内容包括：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 invention provides a scroll compressor and an air conditioner, comprising: the rotary compressor comprises a movable scroll (21), a crankshaft (18) and a main balance weight (8), wherein a convex part (100) is convexly arranged on the movable scroll (21) in a direction towards the main balance weight (8), a sliding part (6) 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 component (7), the other radial side of the sliding part is opposite to the convex part (100), the sliding part (6) is not in contact with the convex 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 convex part (100) when the rotating speed of the crankshaft (18) is higher than the preset rotating speed. The invention can realize that the sliding part which is arranged opposite to the movable disk and rotates along with the rotating shaft offsets partial or even all centrifugal force of the movable disk, so that the friction between the movable and static scrolls is reduced, and the problem that the centrifugal force of the movable disk is larger under high rotating speed of the scroll compressor is solved.)

1. A scroll compressor characterized by: the method comprises the following steps:

Move whirlpool dish (21), bent axle (18) and main balancing piece (8), it establishes to move whirlpool dish (21) the tip of bent axle (18), main balancing piece (8) cover is established on bent axle (18), and move whirlpool dish (21) and be provided with bulge (100) with the direction protrusion towards main balancing piece (8), be provided with sliding part (6) on main balancing piece (8), radial one side of sliding part (6) pass through elastic component (7) and be connected with main balancing piece (8), radial opposite side with bulge (100) are relative, and can be when bent axle (18) rotational speed is less than preset rotational speed sliding part (6) with bulge (100) do not contact, when bent axle (18) rotational speed is higher than preset rotational speed sliding part (6) with bulge (100) contact.

2. The scroll compressor of claim 1, wherein:

move vortex dish (21) including can with bearing frame (2101) that the tip of bent axle (18) cup joints the setting, bulge (100) include first supporting part (2102), first supporting part (2102) with bearing frame (2101) meet the setting, or first supporting part (2102) are in move vortex dish (21) do not set up on the axial terminal surface that moves the scroll, first supporting part (2102) are towards main balancing piece (8) direction protrusion ground is provided with first extension (2103), the radial inboard of first extension (2103) have with sliding part (6) are relative and can with sliding part (6) contact's first inner wall (2104).

3. the scroll compressor of claim 2, wherein:

the first extending part (2103) is an arc-shaped stretching rib, the first supporting part (2102) is of a plate-shaped structure with a fan-shaped or semicircular cross section, and the first extending part (2103) is connected with the arc-shaped outer circumference of the first supporting part (2102) and matched with the arc-shaped outer circumference.

4. The scroll compressor of claim 1, wherein:

the bulge (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 arranged on the third supporting part (101) in an axially extending mode, a fourth extending part (104) is arranged on the fourth supporting part (102) in an axially extending mode, and the third supporting part (101) and the fourth supporting part (102) can be spliced into a whole and meanwhile the third extending part (103) and the fourth extending part (104) are also spliced into a whole.

5. The scroll compressor of claim 4, wherein:

The bulge (100) further comprises a first partial ring structure (26) connected with the third supporting portion (101) and a second partial ring structure (27) connected with 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) comprises a bearing seat (2101) capable of being sleeved with the end portion of the crankshaft (18), an annular groove (2105) is formed in the inner concave portion of the 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).

6. the scroll compressor of claim 5, wherein:

the first partial ring structure (26) is provided with a through hole (2601), the second partial ring structure (27) is provided with a threaded hole (2701), and a bolt or a screw can be allowed to simultaneously pass through the through hole (2601) and the threaded hole (2701) to fixedly connect the first partial ring structure (26) and the second partial ring structure (27).

7. The scroll compressor of any one of claims 1-6, wherein:

The main balance weight (8) is further provided with a second supporting portion (801) in a protruding manner in a direction toward the orbiting scroll (21), the second supporting portion (801) is provided with a second extending portion (805) extending in an axial direction, the second supporting portion (801) is provided with a first supporting table (802) extending in a radial direction, and the sliding portion (6) is supported by the first supporting table (802).

8. The scroll compressor of claim 7, wherein:

first guide plates (803) are respectively connected to both ends of the second extension portion (805), and the first guide plates (803) are also formed to extend in the axial direction from the second support portion (801) so as to guide and limit the sliding portion (6).

9. The scroll compressor of claim 7 or 8, wherein:

the elastic member (7) is provided between the second extending portion (805) and the sliding portion (6), the sliding portion (6) being located radially outward, and the second extending portion (805) being located radially inward.

10. The scroll compressor of claim 9, wherein:

the elastic component (7) is a spring, one end of the spring is fixedly connected to the second extending part (805), and the other end of the spring is fixedly connected to the sliding part (6).

11. The scroll compressor of claim 10, wherein:

And a first spring connecting port (804) capable of fixedly connecting the spring is arranged on the radial outer wall of the second extension part (805).

12. The scroll compressor of claim 10, wherein:

first supporting bench (802) are fan-shaped or semicircular platelike structure for cross sectional shape, just sliding part (6) are fan-shaped plate structure, including radial inner wall (602) and radial outer wall (603) for cross sectional shape, it can be right to be provided with on radial inner wall (602) the spring carries out fixed connection's second spring connector (601), radial outer wall (603) can with bulge (100) contact.

13. The scroll compressor of any one of claims 1-12, wherein:

a second support base (802 ') is concavely arranged on the surface of the main balance weight (8) opposite to the movable scroll (21) in the direction away from the movable scroll (21), the sliding part (6) is supported by the second support base (802'), an extension wall (805 ') extending along the axial direction is arranged on the radial inner side of the second support base (802'), and a third spring connecting port (804 ') fixedly connected with the elastic component (7) is arranged on the extension wall (805').

14. The scroll compressor of claim 13, wherein:

Second guide walls (803 ') capable of guiding and limiting the sliding portion (6) are formed on both sides of the second support base (802') in the circumferential direction.

15. an air conditioner, characterized in that: comprising the scroll compressor of any one of claims 1-14.

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.