Vortex device

Abstract

The present disclosure provides a scroll device, which includes: a fixed scroll; a moving scroll that cooperates with the fixed scroll to compress or expand a working fluid; a main bearing housing that includes a thrust plate, and a thrust surface adapted to support the moving scroll is provided on one side of the thrust plate; and a cross slip ring that includes an annular body, wherein the annular body is disposed on the other side of the thrust plate opposite to the thrust surface. According to the present disclosure, miniaturization design of a scroll compressor can be achieved while ensuring the reliability of the scroll compressor.

Description

Technical Field

[0001] The present invention relates to a scroll device. Background Art

[0002] The content of this section only provides background information related to the present disclosure, which may not constitute prior art.

[0003] The compression mechanism of a scroll compressor generally includes a moving scroll and a fixed scroll, and the moving scroll and the fixed scroll cooperate to form a series of compression chambers. During the operation of the scroll compressor, the power of the motor is transmitted to the moving scroll via the rotating shaft to cause relative movement between the moving scroll and the fixed scroll, thereby compressing the working medium in the compression chamber. This relative movement is the translational movement of the moving scroll relative to the fixed scroll, but the moving scroll itself does not rotate relative to the fixed scroll. To ensure the effective and reliable operation of the compressor, it is necessary to properly install and support each component in the compressor.

[0004] Currently, scroll compressors tend to be miniaturized, which means that a trade-off needs to be made between the miniaturized design of the scroll compressor and the reliability of the scroll compressor. On the one hand, in order to achieve the miniaturization of the scroll compressor, it is necessary to reduce the size of the compressor housing. Correspondingly, the inner diameter of the compressor housing needs to be reduced. On the other hand, when the inner diameter of the compressor housing is reduced, the installation space and the movement space of the components accommodated in the compressor housing are correspondingly reduced. Without changing the materials and functions of the components, this miniaturized design may affect the strength of each component itself, thereby affecting the reliability and service life of the scroll compressor.

[0005] Therefore, it is necessary to provide a solution that can achieve the miniaturized design of the scroll compressor while ensuring the reliability of the scroll compressor. Summary of the Invention

[0006] An object of one or more embodiments of the present disclosure is to provide a solution that can achieve the miniaturized design of the scroll compressor while ensuring the reliability of the scroll compressor.

[0007] According to one aspect of the present disclosure, there is provided a scroll device, which includes: a fixed scroll; a moving scroll, the moving scroll cooperating with the fixed scroll to compress or expand a working fluid; a main bearing seat, the main bearing seat including a thrust plate, and a thrust surface adapted to support the moving scroll is provided on one side of the thrust plate; and a cross slip ring, the cross slip ring including an annular body, wherein the annular body is provided on the other side of the thrust plate opposite to the thrust surface.

[0008] According to one aspect of the present disclosure, the cross slip ring further includes a first docking key engaged with the moving scroll and a second docking key engaged with the main bearing seat, and an axially extending length of the first docking key is greater than an axially extending length of the second docking key.

[0009] According to one aspect of the present disclosure, the moving scroll is provided with a first docking groove for the first docking key to engage, and the main bearing seat is provided with a second docking groove for the second docking key to engage and a pair of through openings for the first docking key to extend through.

[0010] According to one aspect of the present disclosure, the pair of through openings and the second docking groove extend in a first direction such that the cross slip ring moves relative to the main bearing seat in the first direction under the action of the moving scroll, and the first docking groove extends in a second direction at an angle to the first direction such that the moving scroll moves relative to the cross slip ring in the second direction.

[0011] According to one aspect of the present disclosure, the through opening is an orifice formed through the thrust plate.

[0012] According to one aspect of the present disclosure, the dimensions of the pair of through openings are configured such that the first docking key can slide in the first docking groove and the second docking key can slide in the second docking groove.

[0013] According to one aspect of the present disclosure, the first docking groove is a blind groove formed at an end plate of the moving scroll, and / or the second docking groove is a blind groove formed at the other side of the thrust plate.

[0014] According to one aspect of the present disclosure, the main bearing seat further includes a cylindrical portion axially extending downward from the thrust plate, the cylindrical portion defines a cavity adapted to receive a hub portion of the moving scroll, and the annular body is disposed outside the cylindrical portion.

[0015] According to one aspect of the present disclosure, the scroll device further includes a cross slip ring holder, the cross slip ring holder includes a radially outer supporting portion and a radially inner connecting portion, the supporting portion is configured to support the annular body, and the connecting portion is configured to be fixed to the main bearing seat.

[0016] According to one aspect of the present disclosure, the main bearing seat further includes a main bearing mounting portion adapted to mount a main bearing, a stepped portion is formed between the cylindrical portion and the main bearing mounting portion, and the connecting portion is formed with a plurality of orifices, and fasteners extend through the orifices and are fixed to the stepped portion.

[0017] According to one aspect of the present disclosure, the scroll device is a scroll compressor.

[0018] The scroll and bearing assembly according to the present invention and a scroll compressor including the scroll and bearing assembly can increase the design space of the components of the scroll and bearing assembly, and can achieve a miniaturized design of the scroll compressor while ensuring the reliability of the scroll compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Through the following description with reference to the drawings, the features and advantages of one or more embodiments of the present invention will become more readily understood. The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. The drawings are not drawn to scale, but some features may be enlarged or reduced to show details of specific components. In the drawings:

[0020] Figure 1 is a schematic cross-sectional view showing a scroll compressor according to a first comparative example;

[0021] Figure 2 is a schematic exploded perspective view showing the scroll and bearing assembly of the scroll compressor according to the first comparative example;

[0022] Figure 3 is a schematic exploded perspective view showing the scroll and bearing assembly according to a second comparative example;

[0023] Figure 4 is a schematic cross-sectional view showing the scroll and bearing assembly according to the second comparative example;

[0024] Figure 5 is a schematic cross-sectional view showing the scroll and bearing assembly according to an exemplary embodiment of the present disclosure;

[0025] Figure 6 is a schematic exploded perspective view showing the scroll and bearing assembly according to an exemplary embodiment of the present disclosure; and

[0026] Figure 7 and Figure 8 is a schematic perspective view showing the main bearing housing of the scroll and bearing assembly according to an exemplary embodiment of the present disclosure at different angles. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described below with reference to the drawings. The description is merely exemplary and does not constitute a limitation on the present invention and its applications.

[0028] As Figure 1As shown, the scroll compressor 1 includes a housing 10. More specifically, the housing 10 may be composed of a generally cylindrical body 12, a top cover 14 provided at one end of the body 12, and a bottom cover 16 provided at the other end of the body 12.

[0029] A compression mechanism and a drive mechanism are disposed within the housing 10. Figure 1 In the example shown, the compression mechanism includes a moving scroll 20 and a stationary scroll 30 that are engaged with each other. The moving scroll 20 includes an end plate 22 that has a spiral blade or scroll on one side and an annular flat thrust surface 24 on the other side. The moving scroll projects downward from the thrust surface 24 with a cylindrical hub portion 26, and a drive bearing 28 may be provided within the hub portion 26. The stationary scroll 30 correspondingly includes an end plate 32 and a series of spiral blades or scrolls. Also, a guide ring 70 is provided between the stationary scroll 30 and the housing 10 to achieve radial centering and limiting of the stationary scroll.

[0030] The drive mechanism includes a motor 40. The motor 40 includes a stator and a rotor. The rotor is capable of rotating within the stator and a drive shaft 45 is provided therein. An eccentric crank pin 46 is formed at one end of the drive shaft 45. The eccentric crank pin 46 is fitted via a relief bushing into the drive bearing of the hub portion 26 of the moving scroll 20 to drive the moving scroll 20. The moving scroll 20 is driven by the drive mechanism to perform a translational rotation relative to the stationary scroll 30 (i.e., the central axis of the moving scroll 20 translates around the central axis of the stationary scroll 30, but the moving scroll 20 itself does not rotate around its own central axis) to achieve compression of the fluid.

[0031] The main bearing seat 50 is adapted to support the compression mechanism and includes an annular central body (or central thrust plate 52) and arm portions 54 located radially outside the central thrust plate 52 and extending axially upward (refer to Figure 2 ). The upper surface of the central thrust plate 52 provides a thrust surface adapted to support the moving scroll 20. Each of the arm portions 54 is provided with an orifice. As Figure 2 shown, by extending a fastener 80 through the orifice of the guide ring 70 and into the orifice of the arm portion 54 of the main bearing seat 50, a certain range of axial movement of the stationary scroll relative to the main bearing seat 50 is allowed.

[0032] To prevent the moving scroll 20 from self-rotating, a cross slide ring 60 is provided in cooperation with the moving scroll 20 and the stationary scroll 30. As Figure 2 shown, the cross slide ring 60 has an annular body 62, and two pairs of engaging keys are provided on the annular body 62. The first pair of engaging keys 64a, 64b are used to engage with corresponding engaging grooves (only a single engaging groove 22a is shown) on the stationary scroll 30, and the second pair of engaging keys 66a, 66b (refer to Figure 6) It is used to engage with the corresponding engagement grooves 32a and 32b on the moving scroll 20. During operation, the first pair of engagement keys 64a and 64b and the second pair of engagement keys 66a and 66b move within the corresponding engagement grooves respectively. Since the fixed scroll 30 is a fixed component, the rotation of the moving scroll 20 can be prevented while allowing the moving scroll 20 to move relative to the fixed scroll 30.

[0033] The fixed scroll 30 and the main bearing housing 50 are fastened by fasteners 80 that extend through the orifice of the guide ring 70 and into the orifice of the main bearing housing 50, so that the fixed scroll 30, the main bearing housing 50, and the moving scroll 20 and the cross slip ring 60 disposed therebetween together form a scroll and support assembly.

[0034] Figure 3 and Figure 4 A perspective view and a cross-sectional view of a scroll and support assembly according to a second comparative example are schematically shown. The structure of the scroll and support assembly according to the second comparative example is basically similar to that of the scroll and support assembly according to the first comparative example. The difference is that, instead of the guide ring 70, a flange 36' is formed on the radially outer side of the fixed scroll 30'. The flange 36' can cooperate with the compressor housing and is formed with a plurality of orifices 38'. These orifices 38' receive bushings and fasteners, and the fasteners extend through the orifices 38' of the fixed scroll 30' and into the orifices of the main bearing housing 50', thereby allowing the fixed scroll 30' to move axially relative to the main bearing housing 50' within a certain range. In addition, the central thrust plate 52' and the arm portion 54' of the main bearing housing 50' of the scroll compressor according to the second comparative example are formed as separate components, and the central thrust plate 52' is fixed to the arm portion 54' by fasteners.

[0035] As Figure 1 shown, at the axial height indicated by the indication line A - A, the arm portion of the main bearing housing, the cross slip ring, the central thrust plate, and the drive bearing are arranged in sequence from the radially outer side to the radially inner side of the compressor. To ensure the reliable operation of the compressor, these components need to have a sufficient width to withstand the corresponding loads, and sufficient movement space needs to be provided for the cross slip ring and the drive bearing to ensure the performance of the compressor. Similarly, the above components are also arranged correspondingly in the compressor according to the second comparative example. However, when the inner diameter of the housing is reduced for miniaturization design, the size of the main bearing housing is also reduced accordingly. This miniaturization design will reduce the installation space and movement space of the components within the housing, thereby affecting the strength of the components themselves and making it easy for the components to interfere with other components during movement. Therefore, it is difficult to achieve miniaturization design while ensuring the reliability of the compressor.

[0036] To solve the above technical problems, the inventors found that in the scroll and bearing assembly according to the first and second comparative examples above, the annular body of the cross slip ring disposed between the moving scroll and the main bearing housing reciprocates inside the thrust plate of the main bearing housing, occupying a large amount of radial space. The inventors realized that if the annular body of the cross slip ring is disposed on the axially lower side of the thrust plate, the above problems can be well solved.

[0037] The following will refer to Figures 5 - 8 Describe a scroll and bearing assembly according to an exemplary embodiment of the present disclosure.

[0038] As Figure 6 shown, a scroll and bearing assembly according to an exemplary embodiment of the present disclosure may include: a moving scroll 120 and a fixed scroll 130 that are engaged with each other; a cross slip ring 60 for causing the moving scroll 120 to revolve relative to the fixed scroll 130 while preventing the moving scroll 120 from rotating about its own axis; and a main bearing housing 150 for supporting, for example, the moving scroll 120. The moving scroll 120 includes an end plate 122 having a spiral blade or scroll on one side and an annular flat thrust surface on the other side. The moving scroll projects downward from the thrust surface with a cylindrical hub portion 126, and a drive bearing may be provided in the hub portion 126. The fixed scroll 130 also correspondingly includes an end plate 132 and a series of spiral blades or scrolls. And the fixed scroll 130 further forms a pin 134 on the radially outer side. The moving scroll 120 is driven by a drive mechanism to revolve relative to the fixed scroll 130 (i.e., the central axis of the moving scroll 120 revolves around the central axis of the fixed scroll 130, but the moving scroll 120 itself does not rotate about its own central axis) to achieve compression of the fluid.

[0039] The main bearing housing 150 is adapted to support the moving scroll 120 and the fixed scroll 130. As Figure 8 shown, the main bearing housing 150 includes a central thrust plate 152 and a cylindrical wall 154 located radially outside the central thrust plate 152 and extending axially upward. The upper surface of the thrust plate 152 provides a thrust surface adapted to support the moving scroll 120, which engages with the thrust surface of the moving scroll 120. As Figure 5 shown, the radially inner surface of the cylindrical wall 154 cooperates with the radially outer surface of the end plate 132 of the fixed scroll 130 to radially limit the fixed scroll 130. A hole may be provided on the axially upper surface of the cylindrical wall 154. The cover plate 170, the fixed scroll 130, the moving scroll 120, and the main bearing housing 150 are installed together in the order shown in Figure 5 and Figure 6 and the cover plate 170 is fixed to the hole of the main bearing housing 150 by fasteners. A part of the cover plate 170 covers the end plate 132 of the fixed scroll 130 to axially limit the fixed scroll 130. In addition, asFigure 6 As shown, a groove 156 is formed in the cylindrical wall 154 corresponding to the pin 134 of the fixed scroll 130. Thus, by inserting the pin 134 of the fixed scroll into the groove 156 of the main bearing seat 150, the fixed scroll 130 is fixed relative to the main bearing seat 150 in the rotational direction.

[0040] An annular body of the cross slip ring 60 is disposed axially below the thrust plate 152 of the main bearing seat 150. The structure of the cross slip ring 60 is the same as that of the cross slip ring 60 of the scroll and support assembly according to the first and second comparative examples, and will not be described herein again. However, the setting manner of the cross slip ring 60 is different from that in the above comparative examples, and will be specifically described below. In the scroll and support assembly according to the exemplary embodiment of the present disclosure, the cross slip ring 60 is engaged with the main bearing seat 150 and the moving scroll 120, and the annular body of the cross slip ring 60 is disposed axially below the thrust plate 152 of the main bearing seat 150. Specifically, the first pair of mating keys 64a, 64b of the cross slip ring 60 are used to engage with a corresponding pair of mating grooves (only one mating groove 122a is shown herein) on the moving scroll 120, and the second pair of mating keys 66a, 66b are used to engage with a corresponding pair of mating grooves 151a, 151b on the main bearing seat 150. During operation, the first pair of mating keys 64a, 64b and the second pair of mating keys 66a, 66b move in the corresponding mating grooves respectively. Since the main bearing seat 150 and the fixed scroll 130 are relatively fixed in the rotational direction, the cross slip ring 60 can allow the moving scroll 120 to move relative to the main bearing seat 150 or the fixed scroll 130, while preventing the moving scroll 120 from rotating on its own.

[0041] Refer to Figures 5 to 8 , a pair of through openings 153a, 153b for the first pair of mating keys 64a, 64b of the cross slip ring to pass through and a pair of mating grooves 151a, 151b for the second pair of mating keys 66a, 66b of the cross slip ring to engage with are provided in the main bearing seat 150. The mating grooves 151a, 151b and the through openings 153a, 153b can extend in a first direction. The through openings 153a, 153b can be formed as orifices that penetrate the thrust plate 152 and have a closed annular inner surface as shown in Figure 7 and 8 . Or, in the case where the main bearing seat does not have the cylindrical wall 154, for example, the through openings 153a, 153b can also be formed as incisions that penetrate the thrust plate 152, and the incisions can be open on the radial outer side without being closed by the thrust plate 152. Preferably, the through opening 153b is an orifice that penetrates the thrust plate 152. As shown in Figure 8 , the thrust plate 152 still has a connecting portion on the radial outer side of the orifice 153b. Thus, compared with the thrust plate formed with an incision, the thrust plate formed as an orifice can have higher strength and a larger thrust plate area.

[0042] A pair of engaging grooves (only one engaging groove 122a is shown) for engaging the first docking keys 64a, 64b of the cross slip ring may be provided on the end plate 122 of the moving scroll 120, and the docking engaging grooves may extend in a second direction at an angle to the first direction. The sizes of the through ports 153a, 153b may be formed to allow the cross slip ring 60 to move freely, so that the first docking keys 64a, 64b and the second docking keys 66a, 66b can slide in the corresponding engaging grooves.

[0043] During operation, the cross slip ring 60 reciprocates linearly in a first direction within a pair of engaging grooves 151a, 151b of the main bearing housing 150 under the drive of the moving scroll 120. At the same time, the moving scroll 120 reciprocates linearly relative to the cross slip ring 60 in a direction (i.e., the second direction) at an angle to the moving direction of the cross slip ring 60 (i.e., the first direction). Therefore, the movements of the moving scroll 120 and the cross slip ring 60 are synchronized at the same frequency, thereby synthesizing a translational movement in which the moving scroll 120 rotates around the fixed scroll 130 but cannot rotate itself. Preferably, the first direction may be perpendicular to the second direction, thereby avoiding an overly long movement stroke in a certain direction. And as Figure 6 shown, a pair of engaging grooves (only a single engaging groove 122a is shown) of the moving scroll 120 may preferably be blind grooves formed at the end plate 122 of the moving scroll 120. Since the blind grooves do not extend through the end plate 122, a scroll may be formed on the other side of the end plate 122 opposite to the blind grooves, thereby avoiding Figure 2 and Figure 3 in the embodiment of Figure 7 and Figure 8 where it is necessary to further radially outwardly project the end plate to provide the engaging grooves, thereby further saving the installation space of the scroll and the support assembly and facilitating the provision of a miniaturized design. In addition, as

[0044] shown in Figure 7 a pair of engaging grooves 151a, 151b of the main bearing housing 150 are blind grooves formed on the lower side of the thrust plate. Since the blind grooves do not extend through the thrust plate, the thrust surface can be increased and the reduction of the strength of the main bearing housing can be avoided.

[0044] As Figure 7 shown, the main bearing housing 150 further includes a cylindrical portion 155 extending from the thrust plate 152 and a main bearing mounting portion 157 adapted to mount the main bearing. The cylindrical portion defines a cavity adapted to receive the hub portion 126 of the moving scroll 120, and the annular body 62 of the cross slip ring is disposed radially outside the cylindrical portion 155. A stepped portion is formed between the cylindrical portion 155 and the main bearing mounting portion 157.

[0045] Refer to Figure 6, the scroll and bearing assembly according to an exemplary embodiment of the present disclosure further includes a cross slip ring holder 180. The cross slip ring holder 180 may be disposed on the axially lower side of the cross slip ring 60 and may be fixed to the main bearing housing 150. The cross slip ring holder 180 may include a radially outer support portion 182 and a radially inner connecting portion 184. The support portion 182 may be disposed corresponding to the cross slip ring 60 and configured to support the annular body of the cross slip ring 60. The connecting portion 184 is disposed on the radially inner side of the support portion 182, thereby avoiding an increase in the radially extending space of the scroll and bearing assembly. The connecting portion 184 may be provided with a plurality of apertures, and fasteners such as screws, rivets, etc. may pass through the apertures of the connecting portion 184 to fix the cross slip ring holder 180 to the main bearing housing 150. Specifically, the fasteners extend through the apertures and are fixed to the stepped portion of the main bearing housing so as to be able to firmly hold the cross slip ring holder 180 to the main bearing housing 150. Of course, those skilled in the art should understand that the present disclosure is not limited thereto, and any other suitable method may also be used to fix the cross slip ring holder 180 to the main bearing housing 150.

[0046] In the scroll and bearing assembly according to an exemplary embodiment of the present disclosure, the cross slip ring 180 is disposed on the axially lower side of the thrust plate 152 of the main bearing housing 150. Only apertures or grooves for the engagement keys of the cross slip ring need to be provided on the upper side of the thrust plate 152 of the main bearing housing, and the entire annular body of the cross slip ring reciprocates below the thrust plate 152 of the main bearing housing 150, so that the radially mounting space and the movement space of the cross slip ring can be separated from other components. Thereby, the design space of the cross slip ring, the thrust surface, and the drive bearing can be increased, and a solution for miniaturizing the scroll compressor can be achieved while ensuring the reliability of the scroll compressor.

[0047] It should be noted here that although the scroll and bearing assembly of the above exemplary embodiment includes the main bearing housing 150 having a cylindrical wall 154, those skilled in the art should understand that the structure of the main bearing housing of the scroll and bearing assembly according to an exemplary embodiment of the present disclosure is not limited thereto, but may have any other suitable structure, for example, may have the structure according to the first comparative example or the second comparative example, as long as the main bearing housing is correspondingly formed with apertures or engagement grooves for the movement of the engagement keys of the cross slip ring. In addition, the orbiting scrolls 120 and 130 of the scroll and bearing assembly according to an exemplary embodiment of the present disclosure are not limited to the above structures, but may have any other suitable structures as long as they can cooperate with each other to form a plurality of compression chambers for compressing the fluid.

[0048] In the description herein, for convenience of description, the scroll and bearing assembly according to the present disclosure is described by taking a scroll compressor as an example. However, it can be understood that the present disclosure is not limited thereto, and it can be applied to any feasible structure or application, for example, other scroll devices such as scroll expanders, scroll pumps, etc.

[0049] Although various embodiments of the present invention have been described in detail herein, it should be understood that the present invention is not limited to the specific embodiments described and illustrated herein, and other variations and modifications can be implemented by those skilled in the art without departing from the essence and scope of the present invention. All such variations and modifications fall within the scope of the present invention. Moreover, all the components described herein can be replaced by other technically equivalent components.

Claims

1. A scroll device, comprising: a stationary scroll (130); a moving scroll (120), the moving scroll (120) cooperating with the stationary scroll (130) to compress or expand a working fluid; a main bearing housing (150), the main bearing housing (150) including a thrust plate (152), one side of the thrust plate (152) being provided with a thrust surface adapted to support the moving scroll (120); and a cross slip ring (60), the cross slip ring (60) including an annular body (62), characterized in that the annular body is disposed on the other side of the thrust plate (152) opposite to the thrust surface.

2. The scroll device according to claim 1, characterized in that the cross slip ring (60) further includes a first mating key (64a, 64b) engaged with the moving scroll (120) and a second mating key (66a, 66b) engaged with the main bearing housing (150), the axial extension length of the first mating key (64a, 64b) being greater than the axial extension length of the second mating key (66a, 66b).

3. The scroll device according to claim 2, characterized in that the moving scroll (120) is provided with a first mating groove (122a) for the first mating key (64a, 64b) to engage, and the main bearing housing (150) is provided with a second mating groove (151a, 151b) for the second mating key (66a, 66b) to engage and a pair of through openings (153a, 153b) for the first mating key (64a, 64b) to extend through.

4. The scroll device according to claim 3, characterized in that the pair of through openings (153a, 153b) and the second mating groove (151a, 151b) extend in a first direction such that the cross slip ring moves relative to the main bearing housing in the first direction under the action of the moving scroll, and the first mating groove (122a) extends in a second direction at an angle to the first direction such that the moving scroll moves relative to the cross slip ring in the second direction.

5. The scroll device according to claim 3, characterized in that the through openings (153a, 153b) are orifices formed through the thrust plate (152).

6. The scroll device according to claim 3, characterized in that the dimensions of the pair of through openings (153a, 153b) are configured such that the first mating key (64a, 64b) can slide in the first mating groove (122a) and the second mating key (66a, 66b) can slide in the second mating groove (151a, 151b).

7. The scroll device according to claim 3, characterized in that the first mating groove (122a) is a blind groove formed at the end plate of the moving scroll (120), and / or the second mating groove (151a, 151b) is a blind groove formed at the other side of the thrust plate (152).

8. The scroll device according to any one of claims 1 to 7, characterized in that the main bearing housing (150) further includes a cylindrical portion (155) axially extending downward from the thrust plate (152), the cylindrical portion defining a cavity adapted to receive the hub portion (126) of the orbiting scroll (120), and the annular body (62) is disposed outside the cylindrical portion.

9. The scroll device according to claim 8, further comprising: a cross slip ring holder (180), the cross slip ring holder (180) including a radially outer support portion (182) and a radially inner connecting portion (184), the support portion (182) being configured to support the annular body, and the connecting portion (184) being configured to be fixed to the main bearing housing (150).

10. The scroll device according to claim 9, characterized in that the main bearing housing (150) further includes a main bearing mounting portion (157) adapted to mount a main bearing, a stepped portion is formed between the cylindrical portion (155) and the main bearing mounting portion (157), and the connecting portion (184) is formed with a plurality of apertures, and fasteners extend through the apertures and are fixed to the stepped portion.

11. The scroll device according to any one of claims 1 to 7, characterized in that, The scroll device is a scroll compressor.

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