CN209875464U

CN209875464U - Scroll compressor having a plurality of scroll members

Info

Publication number: CN209875464U
Application number: CN201920670984.2U
Authority: CN
Inventors: 郭伟平; 黄幼玲
Original assignee: Emerson Climate Technologies Suzhou Co Ltd
Current assignee: Copeland Suzhou Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2019-12-31
Anticipated expiration: 2029-05-10
Also published as: WO2020228272A1

Abstract

The utility model relates to a scroll compressor, scroll compressor includes: a housing; the compression mechanism comprises a fixed scroll and a movable scroll; a bearing mount member fixedly mounted to a housing of the scroll compressor; and a thrust member supported by the bearing housing member, and an upper surface of the thrust member supporting a lower surface of a back plate of the orbiting scroll. The scroll compressor further has: a positioning structure configured to limit movement of the thrust member relative to the bearing housing member in a radial direction and/or a circumferential direction.

Description

Scroll compressor having a plurality of scroll members

Technical Field

The utility model relates to a scroll compressor.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

Scroll compressors generally include a housing and a compression mechanism comprised of a fixed scroll and an orbiting scroll housed within the housing. The fixed scroll is fixed to a housing of the scroll compressor. The orbiting scroll is able to orbit relative to the stationary scroll to form a series of compression pockets for compressing a working fluid. The orbiting motion of the orbiting scroll relative to the fixed scroll causes a change in volume of the compression chamber, thereby compressing the working fluid in the compression chamber. The compression mechanism is supported by a main bearing housing fixedly mounted to the shell. In particular, the orbiting scroll is supported by a main bearing housing therein.

In prior art scroll compressors, split thrust bearing designs are known. In this design, a thrust member is provided between the main bearing housing and the orbiting scroll. In particular, the thrust member is a thrust plate. The thrust member is supported by the spindle base and contacts the orbiting scroll. The split thrust bearing is lack of positioning between a thrust piece and a main bearing seat, and easily causes the problems of faults such as collision damage of parts and noise.

Therefore, it is desirable to position the thrust block to reduce the impact of various components within the scroll compressor, thereby improving the reliability and service life of the various components.

SUMMERY OF THE UTILITY MODEL

The utility model provides a scroll compressor, scroll compressor includes: a housing; the compression mechanism comprises a fixed scroll and a movable scroll; a bearing mount member fixedly mounted to a housing of the scroll compressor; and a thrust member supported by the bearing housing member, and an upper surface of the thrust member supporting a lower surface of a back plate of the orbiting scroll. The scroll compressor includes: a positioning structure configured to limit movement of the thrust member relative to the bearing housing member in a radial direction and/or a circumferential direction.

In one embodiment, the bearing seat member and the thrust piece each have a substantially annular base portion, one of the bearing seat member and the thrust piece is provided with an outer peripheral wall extending from a radially outer side of the base portion thereof in an axial direction toward the other of the bearing seat member and the thrust piece and/or an inner peripheral wall extending from a radially inner side of the base portion thereof in an axial direction toward the other of the bearing seat member and the thrust piece, the other of the bearing seat member and the thrust piece has a radially outer peripheral portion radially abuttable against the outer peripheral wall and/or a radially inner peripheral portion radially abuttable against the inner peripheral wall, wherein the positioning structure includes: an outer peripheral wall and a radial outer peripheral portion; and/or an inner circumferential wall and a radially inner peripheral portion.

In one embodiment, the outer and/or inner circumferential wall is cylindrical.

In one embodiment, the positioning structure further comprises: a locating pin and a locating hole provided correspondingly on both the thrust member and the bearing housing member for receiving the locating pin; or one axial key provided on one of the thrust member and the bearing housing member and one axial recess provided on the other of the thrust member and the bearing housing member to mate with the axial key.

In one embodiment, the positioning structure comprises: at least two locating pins and at least two locating holes provided on each of the thrust piece and the bearing block member for receiving the locating pins; or at least two axial keys and/or axial recesses provided on one of the thrust piece and the bearing housing part and at least two axial recesses and/or axial keys provided on the other of the thrust piece and the bearing housing part cooperating with the axial keys and/or axial recesses; or a radial periphery of the bearing housing member and the thrust member that are form-fitted to each other to restrict movement of the thrust member relative to the bearing housing member in the radial direction and in the circumferential direction.

In one embodiment, the peripheral wall includes a first peripheral wall and a second peripheral wall, the first peripheral wall and the second peripheral wall being symmetrically arranged about a central axis of the substantially annular base; and/or the inner circumferential wall comprises a first inner circumferential wall and a second inner circumferential wall, the first inner circumferential wall and the second inner circumferential wall being symmetrically arranged about a central axis of the substantially circular base.

In one embodiment, the scroll compressor is configured and adapted to receive a oldham ring of the scroll compressor between the bearing housing member and the thrust member.

In one embodiment, the outer circumferential wall and/or the inner circumferential wall is provided with an opening providing space for movement of the oldham ring.

In one embodiment, a cross-shaped slip ring groove for guiding movement of the cross-shaped slip ring in the first direction is provided in the base of the bearing housing part or the base of the thrust piece.

In one embodiment, the thrust member is provided with a recess on a radially outer or inner periphery thereof, the recess being configured to provide space for movement of a portion of the oldham ring that engages the orbiting and/or non-orbiting scroll.

Drawings

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which like features or components are designated by like reference numerals and which are not necessarily drawn to scale, and in which:

FIG. 1 is a front cross-sectional view of a turbocompressor according to the prior art;

FIG. 2 is a partial cross-sectional view of a scroll compressor showing the orbiting scroll, Oldham ring and bearing housing components assembled together in accordance with the prior art;

FIG. 3 is a top perspective view of the orbiting scroll, Oldham ring and bearing housing components of a scroll compressor as assembled together in accordance with the prior art;

FIG. 4 is a bottom perspective view of the orbiting scroll of a scroll compressor according to the prior art;

FIG. 5 is a top perspective view of an Oldham ring and bearing housing component of a scroll compressor according to the prior art when assembled together;

FIG. 6 is a top perspective view of a bearing mount member, a thrust member and a oldham ring of a scroll compressor according to a first embodiment of the present invention in an assembled condition;

FIG. 7 is an exploded perspective view of a bearing housing component, a thrust member and a oldham ring of a scroll compressor according to a first embodiment of the present invention;

FIG. 8 is an exploded perspective view of a bearing housing component, a thrust member and a oldham ring of a scroll compressor according to a second embodiment of the present invention;

FIG. 9 is a bottom perspective view of a thrust block of a scroll compressor according to a second embodiment of the present invention;

FIG. 10 is an exploded perspective view of a bearing housing component, a thrust member and a oldham ring of a scroll compressor according to a third embodiment of the present invention;

FIG. 11 is a bottom perspective view of a thrust block of a scroll compressor according to a third embodiment of the present invention;

FIG. 12 is an exploded perspective view of a bearing housing component, a thrust member and a oldham ring of a scroll compressor according to a fourth embodiment of the present invention;

fig. 13 is a bottom perspective view of a thrust piece of a scroll compressor according to a fourth embodiment of the present invention.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, like reference numerals indicate like or similar parts and features. The drawings are only schematic representations, not necessarily showing specific dimensions and proportions, of the various embodiments of the invention, the relative details or construction of the various embodiments of the invention may be illustrated in exaggerated form in particular drawings or portions thereof.

FIG. 1 illustrates a scroll compressor 100 according to the prior art. The scroll compressor 100 includes a housing 10, a compression mechanism 20 accommodated in the housing 10, a drive mechanism 30 for driving the compression mechanism 20 to move, and the like. The compression mechanism 20 includes a fixed scroll 21 and an orbiting scroll 22. The orbiting scroll 22 is able to orbit relative to the fixed scroll 21 to form a series of compression chambers for compressing the working fluid. The compression mechanism 20 is supported on the main bearing housing 50. Main bearing housing 50 may be fixed relative to housing 10 by any suitable means. Fixed scroll 21 may be fixed relative to housing 10 in any suitable manner, such as by bolting relative to main bearing housing 50. The drive mechanism 30 includes, for example, a motor including a stator 31 and a rotor 32. The rotor 32 is disposed inside the stator 31 and is rotatable relative to the stator 31. The drive mechanism 30 drives the compression mechanism 20 via the rotary shaft 33. The rotary shaft 33 is provided in the rotor 32 to rotate together with the rotor 32. The rotary shaft 33 is supported by a main bearing housing 50 via a main bearing, and is formed with an eccentric crank pin 34. The eccentric crankpin 34 is fitted in the hub 222 of the orbiting scroll 22 to drive the orbiting scroll 22 to move.

As shown in fig. 2, in the scroll compressor of the related art, a bearing housing member 41 and an oldham ring 60 are provided between an orbiting scroll 22 and a main bearing housing 50. Bearing housing part 41 is formed separately from main bearing housing 50 and fixedly connected together. Alternatively, the bearing housing member 41 is integrally formed with the main bearing housing 50. Bearing housing member 41 provides axial support for both fixed scroll 21 and orbiting scroll 22.

As shown in fig. 3, in the assembled state, the orbiting scroll 22 is seated on the bearing seat member 41. As shown in fig. 4 and 5, the bearing housing member 41 has a cylindrical inner peripheral wall 412 and a substantially annular base 413. A substantially cylindrical central hole 414 is formed in the center of the inner peripheral wall 412. Central bore 414 may allow hub 222 of orbiting scroll member 22 to pass therethrough and allow hub 222 to move within central bore 414 as orbiting scroll member 22 moves.

An oldham ring 60 is provided between the bearing housing member 41 and the orbiting scroll 22. The oldham ring 60 is a generally annular frame. A pair of oldham ring first keys 601 are provided on opposite sides of the oldham ring 60 extending upwardly in the direction of the scroll compressor longitudinal axis. The oldham ring first key 601 is mounted to a oldham ring groove (not shown) of the turbo compressor, and the oldham ring 60 is slidable in a first direction on a line connecting the pair of oldham ring first keys 601. A pair of Oldham ring second keys 602 extending upwardly in the direction of the scroll compressor longitudinal axis are provided on the other two sides of the Oldham ring 60. The oldham ring second key 602 is attached to the orbiting scroll runner 224 of the orbiting scroll 22, and the orbiting scroll 22 can be slid in the second direction on the line connecting the pair of oldham ring second keys 602. The first direction is substantially orthogonal to the second direction. Thereby, the orbiting scroll 22 is caused to perform a translational movement relative to the fixed scroll 21 by the oldham ring 60. It will be appreciated by those skilled in the art that the oldham ring need not be provided with a raised key, but may be provided with pairs of guide surfaces at locations corresponding to the key for guiding movement of the oldham ring.

A bearing seat member thrust surface 411 of bearing seat member 41 at the top of inner peripheral wall 412 supports orbiting scroll thrust surface 221 on the lower side of orbiting scroll 22, where orbiting scroll thrust surface 221 serves as the lower surface of back plate 223 of orbiting scroll 22. During rotation of orbiting scroll 22, end-face friction is generated between bearing housing member thrust face 411 and orbiting scroll thrust face 221. The area of the bearing block member thrust face 411 is limited by the range of motion of the oldham ring 60. For example, with the housing 10 of the scroll compressor 100 being of a constant size, as the orbiting scroll member 22 moves with a greater orbiting radius relative to the fixed scroll member 21, the distance of movement of the oldham ring 60 increases and the outer diameter of the inner peripheral wall 412 needs to be sufficiently small to avoid interference with the movement of the oldham ring 60 in the first direction. The area of the bearing housing member thrust surface 411 is reduced to provide room for movement of the oldham ring 60. But the reduced area increases the likelihood of wear.

Fig. 6 and 7 show a bearing housing member 42, a thrust member 43, and a oldham ring 60 of a scroll compressor according to a first embodiment of the present invention. Bearing housing member 42 is formed separately from main bearing housing 50 and fixedly connected together. Alternatively, the bearing housing member 42 is integrally formed with the main bearing housing 50. The bearing block member 42 has a substantially annular base 421, an outer peripheral wall 422 extending upward from the outer periphery of the base 421 along the longitudinal axis of the turbo compressor, and an inner peripheral wall 423 extending upward in a substantially cylindrical shape at the center of the base 421. Cross-shaped sliding ring grooves 425 for guiding the movement of the cross-shaped sliding ring in the first direction are provided at opposite side edges of the base 421. The outer peripheral wall 422 includes a first outer peripheral wall and a second outer peripheral wall, the first outer peripheral wall being circumferentially spaced apart from the second outer peripheral wall to form an opening 424 to provide space for movement of the oldham ring 60. Alternatively, the peripheral wall 422 includes more than two peripheral walls. Preferably, the first peripheral wall and the second peripheral wall are arranged symmetrically about a central axis of the substantially annular base. Alternatively, one of ordinary skill in the art may contemplate that the inner circumferential wall 423 includes a first inner circumferential wall and a second inner circumferential wall, the first inner circumferential wall of the inner circumferential wall 423 being axially spaced apart from the second outer circumferential wall to form an opening to provide space for movement of the cross slip ring. Preferably, the first and second inner circumferential walls are symmetrically arranged about a central axis of the substantially circular ring-shaped base. The outer peripheral wall 422 is provided with an opening 427 at a position corresponding to the cross-ring groove 425 of the base 421, the opening 427 also providing a space for the movement of the cross-ring. The inner peripheral wall 423 has a bearing housing member central bore 429 for receiving the hub 222 of the orbiting scroll 22.

Additionally or alternatively, it will be appreciated by those skilled in the art that an outer circumferential wall and/or an inner circumferential wall extending in the axial direction toward the bearing housing member 42 may also be provided on the thrust member 43.

An oldham ring 60 is disposed between the bearing block member 42 and the thrust member 43. The oldham ring 60 is supported by the base 421 of the bearing housing part 42. The oldham ring 60 is provided at opposite side edges with a pair of oldham ring first keys 601 extending downwardly along the scroll compressor longitudinal axis. The oldham ring first key 601 is received in the oldham ring groove 425 of the base 421 so that the oldham ring 60 can slide in a first direction on a line connecting the pair of oldham ring first keys 601. A pair of Oldham ring second keys 602 extending upwardly in the direction of the scroll compressor longitudinal axis are provided on the other two sides of the Oldham ring 60. The oldham ring second key 602 is attached to the orbiting scroll runner 224 of the orbiting scroll 22, and the orbiting scroll 22 can be slid in the second direction on the line connecting the pair of oldham ring second keys 602. The first direction is substantially orthogonal to the second direction. The oldham ring 60 translates between the bearing housing member 42 and the thrust member 43.

In the present embodiment, the thrust member 43 is a substantially annular plate. The substantially annular plate may also serve as the base of the thrust piece 43. It is contemplated by one of ordinary skill in the art that a cross-slip ring groove for guiding the movement of the cross-slip ring 60 in the first direction may also be provided in the base of the thrust block 43. The thrust member 43 is provided with four recesses 433 on a radially outer peripheral portion, the recesses 433 being configured to provide a space for movement of a portion of the oldham ring 60 that engages with the orbiting scroll 22 and/or the fixed scroll 21. Preferably, four recesses 433 are arranged at equal intervals in the circumferential direction. Of the four recesses 433, two recesses 433 located at opposite positions are used to receive the oldham ring second key 602. Alternatively, the thrust piece 43 is provided with another number of recesses 433 on the radially outer peripheral portion. Alternatively, thrust member 43 may be provided with a recess on a radially inner periphery to provide space for movement of the portion of oldham ring 60 that mates with orbiting scroll 22 and/or non-orbiting scroll 21.

The bearing housing member support surface 426 at the top of the inner peripheral wall 423 engages with a thrust member support surface 432 of the thrust member 43 to support the thrust member 43. A thrust member thrust surface 431 of thrust member 43 engages a orbiting scroll thrust surface 221 of orbiting scroll 22 to support orbiting scroll 22. The thrust member 43 has a thrust member central aperture 435. Thrust member central bore 435 corresponds with bearing housing member central bore 429 for receiving hub 222 of orbiting scroll member 22. The outer diameter of the thrust member 43 is larger than the outer diameter of the inner circumferential wall 423.

The radially outer peripheral portion 434 of the thrust member 43 radially abuts against the radially inner peripheral portion 428 of the outer peripheral wall 422 of the bearing housing member 42, thereby positioning the thrust member 43 in the radial direction. Alternatively, the radial positioning may be performed with the radial abutment between the radially outer peripheral portion of the inner peripheral wall 423 of the bearing housing member 42 and the radially inner peripheral portion of the thrust piece center hole 435 of the thrust piece 43. At this time, the thrust member 43 is supported by the outer peripheral wall 422 of the bearing housing member 42. Alternatively, in the case where the thrust piece 43 has an outer peripheral wall extending toward the bearing holder member 42, the radial positioning may be performed with a radial abutment between a radially inner peripheral portion of the outer peripheral wall of the thrust piece 43 and a radially outer peripheral portion of the bearing holder member 42. Alternatively, in the case where the thrust member 43 has an inner peripheral wall extending toward the bearing housing member 42, the radial positioning may be performed with a radial abutment between a radially outer peripheral portion of the inner peripheral wall of the thrust member 43 and a radially inner peripheral portion of a bearing housing member center hole of the bearing housing member 42. A person skilled in the art may also envisage other ways of radially positioning the thrust member by means of radial abutment between the outer/inner peripheral wall and the respective radially outer/inner peripheral portion.

Further, in the embodiment shown in fig. 6 and 7, the radially inner peripheral portion 428 of the outer peripheral wall 422 is cylindrical, and the radially outer peripheral portion 434 of the thrust piece 43 also has a corresponding cylindrical contour, with both abutting in the radial direction only for radial positioning. It is contemplated by those skilled in the art that the outer peripheral wall 422 may at least partially have a non-cylindrical inner surface and the radially outer peripheral portion 434 may at least partially have a non-cylindrical (e.g., elliptical, regular polygonal, irregular, with radial protrusions and radial recesses, etc.) profile corresponding to the inner surface of the outer peripheral wall 422 to enable both radial and circumferential positioning. Alternatively, when the thrust member 43 and the bearing housing member 42 have other forms of outer peripheral walls and radially outer peripheral portions and/or inner peripheral walls and radially inner peripheral portions as described above, the radial positioning and the circumferential positioning may be performed as well. That is, the bearing housing member 42 and the thrust piece 43 include radial peripheral portions that are form-fitted to each other to restrict movement of the thrust piece 43 relative to the bearing housing member 42 in the radial direction and in the circumferential direction, where the radial peripheral portions include, for example, an inner surface and a radially outer peripheral portion and/or an inner peripheral wall and a radially inner peripheral portion and the like of the outer peripheral wall of the bearing housing member 42 and/or the thrust piece 43.

A locating pin 45 is provided between the bearing block member 42 and the thrust member 43. The positioning pins 45 are fitted with positioning pin holes 44 provided on the bearing holder member support surface 426 of the inner peripheral wall 423 and corresponding positioning pin holes (not shown) provided on the thrust member support surface 432 of the thrust member 43, thereby positioning the thrust member 43 in the circumferential direction. Those skilled in the art will appreciate that the dowel holes need not be provided in the bearing block member bearing surface 426 and the thrust piece bearing surface 432, but rather, may be provided as long as the bearing block member and the thrust piece can be positioned with the dowel pins.

According to the present embodiment, the scroll compressor 100 is positioned in the radial direction by the engagement of the radially inner peripheral portion 428 of the outer peripheral wall 422 of the bearing housing member 42 with the radially outer peripheral portion 434 of the thrust member 43, and is also positioned in the circumferential direction by the positioning pin 45 provided between the bearing housing member 42 and the thrust member 43, so that the possible collision among the components such as the movable scroll 22, the bearing housing member 42, the thrust member 43, the oldham ring 60, and the like during the operation of the scroll compressor is avoided, and the problems of failure and noise such as damage of the components and the like caused by the collision are avoided, thereby improving the reliability and the service life of the components.

Further, according to the present embodiment, the oldham ring 60 translates between the bearing housing member 42 and the thrust member 43. When the translation space of the oldham ring 60 becomes larger, since the recess 433 of the thrust block 43 allows the oldham ring 60 to move a larger distance, the outer diameter of the other part of the thrust block 43 does not have to be limited by the oldham ring 60. In this way, the contact area between thrust member 43 and orbiting scroll 22 need not be reduced, but may be increased, thereby reducing the risk of wear.

Other means of positioning between the bearing block member 42 and the thrust member 43 may be used.

A bearing housing part, a thrust member and a oldham ring of a scroll compressor according to a second embodiment of the present invention shown in fig. 8 and 9. In the present embodiment, two positioning pins 45 are provided between the bearing housing member 42 and the thrust member 43. The two positioning pins 45 are fitted with two positioning pin holes 44 (fig. 8) provided on the bearing holder member support surface 426 of the inner peripheral wall 423 and corresponding positioning pin holes 46 (fig. 9) provided on the thrust member support surface 432 of the thrust member 43, thereby positioning the thrust member 43 in the radial direction as well as in the circumferential direction.

The bearing housing member 42 and the thrust member 43 may be positioned in other ways than by a locating pin.

A bearing block component, a thrust piece and a oldham ring according to a third embodiment of the present invention shown in fig. 10 and 11. In the present embodiment, no positioning pin is provided between the bearing housing member 42 and the thrust member 43. Alternatively, the thrust member bearing surface 432 of the thrust member 43 is provided with an axial key 47 and the bearing block member bearing surface 426 of the inner peripheral wall 423 is provided with a corresponding axial recess 48. The axial key 47 and the axial recess 48 cooperate to position the thrust member 43 in the circumferential direction.

A bearing block component, a thrust piece and a oldham ring according to a fourth embodiment of the present invention shown in fig. 12 and 13. In the present embodiment, the bearing block member support surface 426 of the inner peripheral wall 423 is provided with the axial direction key portion 47, and the thrust member support surface 432 of the thrust member 43 is provided with the corresponding axial direction recessed portion 48. The axial key 47 and the axial recess 48 cooperate to position the thrust member 43 in the circumferential direction.

Alternatively, it will be appreciated by those skilled in the art that in both embodiments, the axial key 47 and the axial recess 48 may be provided at other locations on the bearing block member 42 and the thrust piece 43, so long as the thrust piece 43 can be positioned.

Alternatively, one skilled in the art may contemplate that the bearing block member and the thrust piece may be positioned using an interference fit, a keyed fit.

Here, the exemplary embodiments of the present invention have been described in detail, but it should be understood that the present invention is not limited to the specific embodiments described and illustrated in detail above. Numerous modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention. All such variations and modifications are intended to fall within the scope of the present invention. Moreover, all the components described herein may be replaced by other technically equivalent components.

Claims

1. A scroll compressor, the scroll compressor comprising:

a housing;

the compression mechanism comprises a fixed scroll and a movable scroll;

a bearing block member fixedly mounted to the housing of the scroll compressor

A thrust member supported by the bearing housing member, and an upper surface of which supports a lower surface of a back plate of the orbiting scroll;

characterized in that the scroll compressor comprises:

a locating feature configured to limit movement of the thrust member relative to the bearing block member in a radial direction and/or a circumferential direction.

2. A scroll compressor as claimed in claim 1, wherein the bearing mount member and the thrust piece each have a generally annular base, one of the bearing mount member and the thrust piece being provided with an outer circumferential wall extending axially towards the other of the bearing mount member and the thrust piece from a radially outer side of its base and/or an inner circumferential wall extending axially towards the other of the bearing mount member and the thrust piece from a radially inner side of its base,

the other of the bearing holder member and the thrust member has a radially outer peripheral portion radially abuttable against the outer peripheral wall and/or a radially inner peripheral portion radially abuttable against the inner peripheral wall,

wherein, the location structure includes:

the outer peripheral wall and the radially outer peripheral portion; and/or

The inner peripheral wall and the radially inner peripheral portion.

3. The scroll compressor of claim 2, wherein the outer peripheral wall and/or the inner peripheral wall is cylindrical.

4. The scroll compressor of claim 3, wherein the positioning structure further comprises:

a locating pin and a locating hole provided in both the thrust block and the bearing housing part, respectively, for receiving the locating pin; or

An axial key portion provided on one of the thrust member and the bearing housing member and an axial recess portion provided on the other of the thrust member and the bearing housing member to be fitted with the axial key portion.

5. The scroll compressor of claim 1, wherein the locating structure comprises:

at least two locating pins and at least two locating holes provided on each of the thrust piece and the bearing housing part for receiving the locating pins; or

At least two axial keys and/or axial recesses provided on one of the thrust piece and the bearing housing part and at least two axial recesses and/or axial keys provided on the other of the thrust piece and the bearing housing part cooperating with the axial keys and/or axial recesses; or

A radial peripheral portion of the bearing seat member and the thrust member that are form-fitted to each other to restrict movement of the thrust member relative to the bearing seat member in a radial direction and in a circumferential direction.

6. The scroll compressor of claim 2, wherein the outer peripheral wall includes a first outer peripheral wall and a second outer peripheral wall, the first outer peripheral wall and the second outer peripheral wall being symmetrically arranged about a central axis of the generally annular base; and/or

The inner circumferential wall includes a first inner circumferential wall and a second inner circumferential wall that are symmetrically arranged about a central axis of the generally annular base.

7. The scroll compressor of claim 2, wherein the scroll compressor is configured and adapted to receive an oldham ring of the scroll compressor between the bearing housing component and the thrust piece.

8. The scroll compressor of claim 7, wherein the outer peripheral wall and/or the inner peripheral wall is provided with an opening providing space for movement of the oldham ring.

9. The scroll compressor of claim 7, wherein a Oldham ring groove is provided in the base of the bearing housing member or the base of the thrust piece for guiding movement of the Oldham ring in the first direction.

10. The scroll compressor of claim 7, wherein a radially outer or inner periphery of the thrust piece is provided with a recess configured to provide space for movement of a portion of the oldham ring that mates with the orbiting and/or non-orbiting scroll members.