CN112539173B

CN112539173B - Movable scroll assembly, scroll compressor and air conditioning system

Info

Publication number: CN112539173B
Application number: CN202011399260.2A
Authority: CN
Inventors: 叶天志; 徐嘉; 刘韵; 陈肖汕
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-12-16
Anticipated expiration: 2040-12-03
Also published as: CN112539173A

Abstract

The invention discloses a movable scroll assembly, a scroll compressor and an air conditioning system, wherein the movable scroll assembly comprises: the movable scroll plate is provided with a first mass center and a first geometric center, the first geometric center is taken as a reference point, and the first mass center is arranged on one side of the first geometric center; the counterweight piece sets firmly in move the vortex dish, the counterweight piece includes the counter weight section, the counter weight section set up in with the opposite side that first barycenter is relative makes with move the vortex dish with the counterweight piece is the coincidence of second geometric centre and second barycenter in the overall structure. This move vortex dish subassembly, scroll compressor and air conditioning system in the use, can guarantee to move the compressor under the prerequisite of vortex dish intensity can not influence the operational reliability of compressor because of the effect of centrifugal force.

Description

Movable scroll assembly, scroll compressor and air conditioning system

Technical Field

The invention relates to the technical field of compressors, in particular to a movable scroll assembly, a scroll compressor and an air conditioning system.

Background

The scroll compressor compresses a refrigerant by periodically engaging the movable scroll with the fixed scroll, compresses the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant, and discharges the refrigerant from an exhaust port. The orbiting scroll generally comprises two parts, a baseplate and a scroll wrap, wherein the baseplate is circular, and the projection of the mass center of the baseplate on a plane is at the geometric center of the baseplate; the wrap is spiral in shape and its centroid projection does not coincide with the geometric center, thus resulting in a shift in the overall orbiting scroll centroid. When the barycenter of moving the vortex dish squints, along with the operation of moving the vortex dish, its barycenter also changes to the distance at main shaft center, so can produce centrifugal force when moving the vortex dish and rotate at a high speed, and centrifugal force size, direction can't keep invariable, influence the balance of compressor shafting power and moment, and the main bearing atress aggravation causes the main shaft to warp, influences compressor operating stability.

In order to solve the problem, the traditional scroll compressor is provided with a leveling hole in a mode of removing materials from the back of a base plate of the movable scroll, and the movable scroll is leveled for one time, so that the center of mass of the whole movable scroll is coincided with the geometric center. However, the balancing mode can cause the movable scroll to have lower strength in the use process, and the operation reliability of the compressor cannot be guaranteed.

Disclosure of Invention

Based on this, move the problem that scroll plate intensity is lower in the use to traditional scroll compressor, compressor operational reliability can not obtain the guarantee, provided one kind and moved scroll plate subassembly, scroll compressor and air conditioning system, should move scroll plate subassembly, scroll compressor and air conditioning system in the use, can guarantee to move the operational reliability that compressor can not influence the compressor because of the effect of centrifugal force under the prerequisite of scroll plate intensity.

The specific technical scheme is as follows:

in one aspect, the present application relates to an orbiting scroll assembly comprising: the movable scroll plate is provided with a first mass center and a first geometric center, the first geometric center is taken as a reference point, and the first mass center is arranged on one side of the first geometric center; the counterweight is fixedly arranged on the movable scroll and comprises a counterweight section, and the counterweight section is arranged on the other side opposite to the first mass center so that a second geometric center of the movable scroll and the counterweight in the integral structure coincide with the second mass center.

Above-mentioned move the vortex dish subassembly when using, move the first barycenter and the first geometric centre of vortex dish and do not coincide, through set firmly the counterweight on moving the vortex dish, and with the counterweight section set up in with the opposite side that first barycenter is relative makes with move the vortex dish with the counterweight is the coincidence of second geometric centre and second barycenter in the overall structure, at this moment, when moving the vortex dish subassembly and installing when the main shaft, the circular motion can be round around the geometric centre of main shaft to the second barycenter, and the direction and the size that produce the centrifugal force when moving the relative main shaft motion of vortex dish subassembly are invariable, consequently can guarantee the balance of compressor shafting power and moment.

And then can realize that the compressor can not influence the operational reliability of compressor because of the effect of centrifugal force under the prerequisite of guaranteeing to move vortex dish intensity.

The technical solution is further explained below:

in one embodiment, the movable scroll comprises a bearing seat, the bearing seat comprises a mounting cavity for mounting a bearing, the counterweight further comprises a connecting section, the connecting section is provided with a limiting groove, the bearing seat is fixedly arranged in the limiting groove, and the counterweight section is connected with the connecting section and arranged outside the limiting groove. Therefore, the bearing is prevented from sliding out of the bearing seat through the limiting effect of the limiting groove; furthermore, the counterweight section is arranged outside the limiting groove and can be used for balancing the movable scroll.

In one embodiment, the movable scroll further comprises a sealing ring, the bearing is arranged in the mounting cavity, and the sealing ring is arranged between the bearing and the inner wall of the limiting groove. Therefore, the sealing ring is compressed by the outer ring of the bearing and the counterweight, on one hand, when the bearing has the tendency of slipping out outwards, reverse thrust can be provided, the slipping out of the bearing can be inhibited, on the other hand, the bearing and the counterweight can be prevented from being in hard contact, and thus vibration and noise can be reduced. Further, referring to the drawings, an accommodating groove is formed in the bottom wall of the limiting groove, and the sealing ring is inserted in the accommodating groove.

In one embodiment, the bottom wall of the limiting groove is provided with an accommodating groove, and the sealing ring is inserted into the accommodating groove.

In one embodiment, the connecting section is provided with a mounting hole penetrating through the bottom wall of the limiting groove, the diameter of the mounting hole is smaller than the diameter of the outer ring of the bearing and larger than the diameter of the inner ring of the bearing, a limiting part is surrounded by the part, located outside the mounting hole, of the bottom wall of the limiting groove, and the bearing is arranged on the limiting part. Therefore, the outer ring of the bearing can be limited, and the inner ring of the bearing is not interfered to rotate.

In one embodiment, the counterweight section is fixedly arranged on the side wall of the connecting section, and the counterweight section extends along the axial direction of the bearing seat. As such, trimming may be performed in this manner when the first centroid of the orbiting scroll is offset from the first geometric center by a relatively small amount.

In one embodiment, one end of the counterweight section is fixedly arranged on the side wall of the connecting section, and the other end of the counterweight section is far away from the connecting section and extends along the radial direction of the bearing seat. As such, when the first centroid offset of the orbiting scroll is large, the trim can be performed in this manner.

In one embodiment, the bearing seat is provided with a counterweight part at the other side opposite to the first mass center, the connecting section is connected with the counterweight part, and the counterweight section is arranged close to the counterweight part so that a second geometric center of the integral structure of the movable scroll and the counterweight part coincides with a second mass center. Wherein, set up counter weight portion according to the structure of moving vortex dish self, nevertheless need satisfy when the counter weight is installed in this counter weight portion move the vortex dish with the counter weight is the second geometric center and the coincidence of second barycenter geometry in the overall structure, and the structure change that is located according to the vortex dish that moves of difference of counter weight portion changes and changes.

In one embodiment, the counterweight part is a counterweight groove, and the counterweight part comprises a positioning protrusion which is fixedly arranged on the inner wall of the limiting groove and is in plug-in fit with the counterweight groove. So, the location cooperation of location arch and counter weight groove plays the effect of fixing a position the installation to the counter weight.

In another aspect, the present application is directed to a scroll compressor including the orbiting scroll assembly of any of the above embodiments.

In another aspect, the present application is also directed to an air conditioning system including the scroll compressor of the above embodiments.

Above-mentioned scroll compressor and air conditioning system all including moving the scroll plate subassembly, move the scroll plate subassembly including moving scroll plate and counterweight, move the first barycenter and the first geometric centre of scroll plate and non-coincidence, through setting firmly the counterweight on moving the scroll plate, and set up the counterweight section in with the opposite side that first barycenter is relative makes so move the scroll plate with the counterweight is the coincidence of second geometric centre and second barycenter in the overall structure, and at this moment, when moving the scroll plate subassembly and installing when the main shaft, the second barycenter can be circular motion round the geometric centre of main shaft, so, produces the direction of centrifugal force and size invariant when moving the relative main shaft motion of scroll plate subassembly, consequently can guarantee the balance of compressor shafting power and moment, and then can realize guaranteeing that the compressor can not influence the operational reliability of compressor because of the effect of centrifugal force under the prerequisite of moving scroll plate intensity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Furthermore, the drawings are not to scale as 1:1, and the relative sizes of the various elements are drawn in the drawings by way of example only and not necessarily to true scale.

FIG. 1 is a schematic diagram of a compressor according to an embodiment;

FIG. 2 is a schematic illustration of the construction of an orbiting scroll assembly in one embodiment;

FIG. 3 is a schematic structural diagram of a orbiting scroll in one embodiment;

FIG. 4 is a cross-sectional view of a orbiting scroll in one embodiment;

FIG. 5 is a schematic view of a counterweight according to an embodiment;

FIG. 6 is a cross-sectional view of a weight member in one embodiment;

fig. 7 is a schematic structural view of a weight member in another embodiment;

fig. 8 is a cross-sectional view of a weight member in another embodiment.

Description of reference numerals:

10. a scroll compressor; 100. a movable scroll plate assembly; 110. a movable scroll; 112. a first center of mass; 114. a first geometric center; 116. a bearing seat; 1162. a mounting cavity; 1164. a counterweight portion; 118. a bearing; 120. a counterweight; 122. a connecting section; 1222. a limiting groove; 12222. mounting holes; 12224. a limiting part; 12226. positioning a projection; 12228. accommodating grooves; 124. a counterweight segment; 130. a seal ring; 200. a main shaft; 300. an eccentricity adjusting member; 400. a crank pin; 500. a spacing pin; 600. a rotor; 700. a primary counterbalance; 800. and a secondary balance weight.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The orbiting scroll typically includes two portions, a baseplate which is circular and has a centroid projected in a plane at its geometric center, and a wrap which is spiral and has a centroid projected out of coincidence with the geometric center, thus resulting in a shift in the centroid of the entire orbiting scroll. When the barycenter of moving the vortex dish squints, along with moving the operation of vortex dish, the distance of its barycenter to main shaft center also changes, so can produce centrifugal force when moving the vortex dish and move at high speed, influence the balance of compressor shafting power and moment, and the base bearing atress aggravation causes the main shaft to warp, influences compressor operating stability. A leveling hole is formed in the traditional scroll compressor in a mode that materials are removed from the back face of a base plate of a movable scroll, and the movable scroll is leveled for one time, so that the center of mass and the geometric center of the whole movable scroll coincide to solve the problem. However, the conventional balancing method can cause the movable scroll to have lower strength during use, and the operational reliability of the compressor cannot be guaranteed. Based on this, move the problem that scroll plate intensity is lower in the use to traditional scroll compressor, compressor operational reliability can not obtain the guarantee, provided one kind and moved scroll plate subassembly 100, scroll compressor 10 and air conditioning system, should move scroll plate subassembly 100, scroll compressor 10 and air conditioning system in the use, can guarantee to move scroll compressor 10 can not influence the operational reliability of compressor because of the effect of centrifugal force under the prerequisite of scroll plate 110 intensity.

Referring to fig. 1 to 2, in an embodiment of the compressor, the compressor includes an orbiting scroll assembly 100, a fixed scroll (not shown), and a main shaft 200, wherein the main shaft 200 drives the orbiting scroll assembly 100 to perform a periodic meshing motion with respect to the fixed scroll to compress a refrigerant.

Referring to fig. 2 and 3, in particular, the orbiting scroll assembly 100 includes an orbiting scroll 110 and a counterweight 120, the orbiting scroll 110 has a first centroid 112 and a first geometric center 114, the first centroid 114 is taken as a reference point, and the first centroid 112 is disposed at one side of the first geometric center 114; the weight member 120 is fixedly disposed on the orbiting scroll 110, the weight member 120 includes a weight section 124, and the weight section 124 is disposed at the other side opposite to the first mass center 112 such that a second geometric center of the structure integrated with the orbiting scroll 110 and the weight member 120 coincides with the second mass center. Specifically, the center of mass refers to the center of mass, and the geometric center refers to the center of rotation of the rotating body.

Referring to fig. 1 to 3, the first centroid 112 and the first geometric center 114 of the movable scroll 110 are not coincident, the counterweight 120 is fixedly mounted on the movable scroll 110, and the counterweight section 124 is disposed on the other side opposite to the first centroid 112, so that the second geometric center and the second centroid of the integral structure formed by the movable scroll 110 and the counterweight 120 are coincident, at this time, when the movable scroll assembly 100 is mounted on the main shaft 200, the second centroid can make a circular motion around the geometric center of the main shaft 200, and thus, the direction and magnitude of the centrifugal force generated when the movable scroll assembly 100 moves relative to the main shaft 200 are constant, so that the balance of the axial force and the moment of the compressor can be ensured, and further, the operation reliability of the compressor cannot be affected by the centrifugal force on the premise of ensuring the strength of the movable scroll assembly 110.

In order to realize normal compression, a traditional scroll compressor needs to drive a main shaft to rotate and drive a movable scroll plate to rotate, so that the movable scroll plate is driven to rotate around a fixed scroll plate. The main shaft and the movable scroll plate need to be connected through a bearing, and the traditional scroll compressor generally fixes the bearing by arranging a bearing installation cavity on the back of a scroll tooth in the movable scroll plate. In order to realize better bearing operation, the traditional scroll compressor generally adopts an interference fit mode to press a bearing into a bearing seat at the tail part of the movable scroll plate. Because the bearing is one of main bearing parts and is located at the uppermost end of the main shaft, the bearing is influenced by the disturbance degree and the assembly precision of the main shaft, and the bearing has the risk of slipping off from the bearing seat to influence the normal operation of the scroll compressor.

In order to solve the above problem, referring to fig. 2 to 4, in this embodiment, the orbiting scroll 110 includes a bearing seat 116, the bearing seat 116 includes a mounting cavity 1162 for mounting the bearing 118, the weight 120 further includes a connecting section 122, the connecting section 122 is provided with a limiting groove 1222, the bearing seat 116 is fixedly disposed in the limiting groove 1222, and the weight 124 is connected to the connecting section 122 and disposed outside the limiting groove 1222. At this time, the bearing 118 is prevented from sliding out of the bearing seat 116 by the limiting action of the limiting groove 1222; further, the weight section 124 is disposed outside the limit groove 1222, and can be used for balancing the movable scroll 110.

Specifically, referring to fig. 5 and fig. 6, in one embodiment, the weight section 124 is fixedly disposed on a sidewall of the connecting section 122, and the weight section 124 extends along an axial direction of the bearing seat 116. As such, the trim may be performed in this manner when the first centroid 112 of the orbiting scroll 110 is offset from the first geometric center 114 by a relatively small amount.

Referring to fig. 7 and 8, in another embodiment, one end of the weight section 124 is fixedly disposed on the sidewall of the connecting section 122, and the other end of the weight section 124 is far away from the connecting section 122 and extends along the radial direction of the bearing seat 116. Trimming may be performed in this manner when the first centroid 112 of the orbiting scroll 110 is offset by a greater amount.

Further, referring to fig. 2 and 4, the orbiting scroll assembly 100 further includes a sealing ring 130, the orbiting scroll 110 further includes a bearing 118, the bearing 118 is disposed in the mounting cavity 1162, and the sealing ring 130 is disposed between the bearing 118 and an inner wall of the limiting groove 1222. Thus, the sealing ring 130 is compressed by the outer ring of the bearing 118 and the weight 120, on one hand, when the bearing 118 tends to slide outward, a reverse thrust is provided to suppress the sliding out, and on the other hand, the bearing 118 and the weight 120 are prevented from being in hard contact, so that vibration and noise can be reduced. Further, referring to fig. 2 and 4, the bottom wall of the limiting groove 1222 is provided with a receiving groove 12228, and the sealing ring 130 is inserted into the receiving groove 12228. Specifically, the seal ring 130 may be an O-ring seal.

Referring to fig. 5 and 6, the connecting segment 122 is provided with a mounting hole 12222 penetrating through the bottom wall of the limiting groove 1222, the diameter of the mounting hole 12222 is smaller than the outer ring diameter of the bearing 118 and larger than the inner ring diameter of the bearing 118, a portion of the bottom wall of the limiting groove 1222, which is located outside the mounting hole 12222, surrounds a limiting portion 12224, and the bearing 118 is disposed on the limiting portion 12224. In this way, the outer race of the bearing 118 can be restrained without interfering with the rotation of the inner race of the bearing 118.

Referring to fig. 1, the scroll compressor 10 further includes an eccentricity adjuster 300, a crank pin 400 and a limit pin 500, wherein one end of the eccentricity adjuster 300 is fixed to the main shaft 200 through the limit pin 500, the other end of the eccentricity adjuster is matched with the inner ring of the bearing 118, and the crank pin 400 passes through an eccentric hole of the eccentricity adjuster 300 and is fixed to the main shaft 200. Further, referring to fig. 1, the scroll compressor 10 further includes a rotor 600, a main balance weight 700 and an auxiliary balance weight 800, the rotor 600 is in transmission fit with the main shaft 200, the main balance weight 700 is disposed at one end of the rotor 600 close to the movable scroll 110, the auxiliary balance weight 800 is disposed at the other end of the rotor 600 far away from the movable scroll 110, and the main balance weight 700 and the auxiliary balance weight 800 are disposed at two sides of the main shaft 200, when in use, the shaft assembly in the entire scroll compressor 10 is in a state of force balance in the movement process due to the cooperation of the eccentricity adjusting element 300, the movable scroll assembly 100, the main balance weight 700 and the auxiliary balance weight 800.

Referring to fig. 3 and 4, the bearing seat 116 is provided with a weight portion 1164 at the other side opposite to the first mass center 112, the connecting section 122 is connected to the weight portion 1164, and the weight section 124 is disposed near the weight portion 1164 so that the second geometric center of the overall structure including the orbiting scroll 110 and the weight member 120 coincides with the second mass center. Wherein, the counterweight 1164 is provided according to the structure of the movable scroll 110 itself, but it needs to be satisfied that when the counterweight 120 is installed on the counterweight 1164, the second geometric center and the second centroid of the integral structure of the movable scroll 110 and the counterweight 120 coincide with each other, and the position of the counterweight 1164 can be changed according to the structural change of the movable scroll 110.

Further, referring to fig. 5 and fig. 6, the weight portion 1164 is a weight slot, and the weight member 120 includes a positioning protrusion 12226, where the positioning protrusion 12226 is fixed to an inner wall of the limiting slot 1222 and is in plug-in fit with the weight slot. As such, the positioning engagement of the positioning projection 12226 and the weight slot 1164 serves to positionally mount the weight member 120.

In addition, an embodiment also relates to an air conditioning system, which comprises the scroll compressor 10 in the embodiment.

The air conditioning system includes the scroll compressor 10, the scroll compressor 10 includes the movable scroll assembly 100 in any of the above embodiments, the movable scroll assembly 100 includes the movable scroll 110 and the weight 120, the first centroid 112 and the first geometric center 114 of the movable scroll 110 do not coincide, the weight 120 is fixed on the movable scroll 110, and the weight section 124 is disposed on the other side opposite to the first centroid 112, so that the second geometric center in the integral structure formed by the movable scroll 110 and the weight 120 coincides with the second centroid, at this time, when the movable scroll assembly 100 is installed on the main shaft 200, the second centroid can make a circular motion around the geometric center of the main shaft 200, so that the direction and magnitude of the centrifugal force generated when the movable scroll assembly 100 moves relative to the main shaft 200 are constant, therefore, the balance of the compressor shafting force and moment can be ensured, and further, the operation reliability of the compressor cannot be affected by the centrifugal force on the premise that the strength of the movable scroll 110 is ensured.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An orbiting scroll assembly comprising:

the movable scroll plate is provided with a first mass center and a first geometric center, the first mass center is taken as a reference point, the first mass center is arranged on one side of the first geometric center, the movable scroll plate comprises a bearing seat, and the bearing seat comprises a mounting cavity;

the counterweight part is arranged outside the mounting cavity and fixedly arranged on the movable scroll plate, and comprises a counterweight section which is arranged on the other side opposite to the first mass center so that a second geometric center of the integral structure formed by the movable scroll plate and the counterweight part is coincided with a second mass center; the counterweight part also comprises a connecting section, the connecting section is provided with a limiting groove, the bearing seat is fixedly arranged in the limiting groove, and the counterweight section is connected with the connecting section and arranged outside the limiting groove; and

the sealing washer, move the vortex dish and still include the bearing, the bearing set up in the installation cavity, the sealing washer set up in the bearing with between the inner wall of spacing groove.

2. An orbiting scroll assembly according to claim 1, wherein the bottom wall of the retaining groove is provided with a receiving groove, and the seal ring is inserted into the receiving groove.

3. The orbiting scroll assembly according to claim 1, wherein the connection section has a mounting hole penetrating through a bottom wall of the limit groove, a diameter of the mounting hole is smaller than an outer ring diameter of the bearing and larger than an inner ring diameter of the bearing, a portion of the bottom wall of the limit groove located outside the mounting hole defines a limit portion, and the bearing is disposed in the limit portion.

4. The orbiting scroll assembly according to claim 1, wherein the counterweight segment is fixedly disposed on a sidewall of the connecting segment, and the counterweight segment extends along an axial direction of the bearing housing.

5. The orbiting scroll assembly according to claim 1, wherein one end of the counterweight segment is fixedly disposed on the sidewall of the connecting segment, and the other end of the counterweight segment is disposed away from the connecting segment and extends in a radial direction of the bearing housing.

6. The orbiting scroll assembly of claim 1, wherein the bearing housing is provided with a counterweight on the side opposite the first center of mass, the connecting section being connected to the counterweight, the counterweight section being disposed proximate the counterweight so that a second geometric center of the integral structure of the orbiting scroll and the counterweight coincides with the second center of mass.

7. The orbiting scroll assembly according to claim 6, wherein the counterweight portion is a counterweight groove, and the counterweight member includes a positioning protrusion fixed to an inner wall of the limiting groove and engaged with the counterweight groove.

8. A scroll compressor comprising an orbiting scroll assembly as claimed in any one of claims 1 to 7.

9. An air conditioning system comprising the scroll compressor of claim 8.