CN218934716U - Scroll compressor and refrigeration equipment - Google Patents

Abstract

The utility model discloses a scroll compressor and refrigeration equipment, wherein the scroll compressor comprises a shell, a main support, an auxiliary support, a driving assembly, a compression assembly and a crankshaft, wherein a stator and a rotor are arranged between the main support and the auxiliary support, a fixed scroll is fixedly connected to the main support, a compression cavity is formed by matching a movable scroll with the fixed scroll, one end of the crankshaft passes through a first shaft hole of the main support and is connected with the movable scroll, and the other end of the crankshaft passes through a second shaft hole of the auxiliary support; the auxiliary bracket comprises a bearing part and a plurality of supporting parts, the thrust plate at one end of the bearing part, which is far away from the stator, is used for supporting the crankshaft along the axial direction, and the bearing capacity and the structural strength of the auxiliary bracket are improved through the plurality of supporting parts and the shell body in a fixed connection mode, so that the rigidity of the axial thrust structure is improved, the axial fluctuation amplitude of a shafting assembly consisting of the crankshaft and the rotor is reduced, the axial movement is reduced, the abnormal sound is further reduced, the purpose of reducing noise is achieved, and the scroll compressor is suitable for refrigeration equipment.

Description

Scroll compressor and refrigeration equipment

Technical Field

The utility model relates to the technical field of compressors, in particular to a scroll compressor and refrigeration equipment.

Background

When the scroll compressor runs at high rotation speed and high exhaust pressure, the pressure difference of the pressure pulsation of refrigerant gas in the scroll compressor is increased, the shafting component is influenced by axial gas force to move, the phenomenon of separating from and impacting the thrust plate is caused, abnormal sound is generated, noise is generated, and the use experience of a user is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the vortex compressor, which improves the stability of the crankshaft along the axial direction and can reduce the axial movement of the crankshaft, thereby reducing the generation of abnormal sound.

The utility model also provides refrigeration equipment comprising the scroll compressor.

According to the first aspect of the utility model, the scroll compressor comprises a shell, a main support, an auxiliary support, a driving assembly, a compression assembly and a crankshaft, wherein a mounting cavity is formed in the shell; the main support is fixedly connected in the mounting cavity, and is provided with a first shaft hole; the auxiliary bracket is fixedly connected in the mounting cavity and is provided with a second shaft hole; the driving assembly comprises a stator and a rotor, the stator is fixedly connected to the inner peripheral wall of the mounting cavity and positioned between the main bracket and the auxiliary bracket, and the rotor is rotationally arranged in the stator; the compression assembly comprises a fixed scroll and a movable scroll, the fixed scroll is fixedly connected to one end of the main support, which is far away from the stator, and the movable scroll is rotationally arranged between the fixed scroll and the main support; the crankshaft penetrates through the rotor, one end of the crankshaft penetrates through the first shaft hole and is fixedly connected with the movable vortex disc, and the other end of the crankshaft is rotatably arranged in the second shaft hole; the auxiliary bracket comprises a bearing part and a plurality of supporting parts, wherein the supporting parts are distributed along the circumferential direction of the bearing part and fixedly connected with the inner circumferential wall of the mounting cavity, and one end, far away from the stator, of the bearing part is provided with a thrust plate for supporting the crankshaft.

The scroll compressor according to the embodiment of the utility model has at least the following beneficial effects:

the stator and the rotor are arranged between the main bracket and the auxiliary bracket through assembling the main bracket and the auxiliary bracket in the mounting cavity of the shell, the fixed vortex disc is fixedly connected to the main bracket, the movable vortex disc and the fixed vortex disc are matched to form a compression cavity, the crankshaft penetrates through the rotor, one end of the crankshaft penetrates through a first shaft hole of the main bracket and is connected with the movable vortex disc, the other end of the crankshaft penetrates through a second shaft hole of the auxiliary bracket, both ends of the crankshaft are supported, and the crankshaft is driven to rotate through the rotor, so that the movable vortex disc is driven to rotate relative to the fixed vortex disc; the auxiliary support comprises a bearing part and a plurality of supporting parts, the supporting parts are distributed along the circumferential direction of the bearing part at intervals, the thrust plate at one end of the bearing part, which is far away from the stator, is utilized to support the crankshaft along the axial direction, so that the end face of the crankshaft and the thrust plate can be in sliding contact, the bearing capacity and the structural strength of the auxiliary support are improved through the fixed connection of the supporting parts and the shell, the reliability is higher, the rigidity of the axial thrust structure is improved, the amplitude of axial fluctuation of a shafting assembly consisting of the crankshaft and the rotor is reduced, the axial stability is higher when the shafting assembly runs, the axial movement is reduced, the abnormal sound is further reduced, the purpose of reducing noise is achieved, the scroll compressor is suitable for refrigeration equipment, and the use experience of a user can be improved.

According to some embodiments of the utility model, the support part is a support plate, the support plate is provided with six support plates, and six support plates are arranged at intervals on the periphery of the bearing part.

According to some embodiments of the utility model, the angle between adjacent support plates ranges from 55 ° to 65 °.

According to some embodiments of the utility model, the support is a support plate having a width of 28mm or more.

According to some embodiments of the utility model, the support is a support plate having a thickness of 14mm or more.

According to some embodiments of the utility model, the end of the support plate away from the bearing portion is formed with a reinforcing rib protruding in the axial direction of the crankshaft, and the reinforcing rib has a thickness of 6mm or more.

According to some embodiments of the utility model, a plurality of mounting holes for mounting the oil baffle plate are formed in one end, close to the bearing portion, of the support plate, and the plurality of mounting holes are distributed on the plurality of support plates in a central symmetry mode.

According to some embodiments of the utility model, the end of the support portion remote from the bearing portion is welded to the housing.

According to some embodiments of the utility model, an end of the bearing portion remote from the stator is provided with a connecting hole, and the thrust plate is fixedly connected with the connecting hole through a fastener.

A refrigeration appliance according to an embodiment of a second aspect of the present utility model includes the scroll compressor of the embodiment of the first aspect described above.

The refrigeration equipment provided by the embodiment of the utility model has at least the following beneficial effects:

the refrigeration equipment is applied to the scroll compressor of the embodiment, one end of the crankshaft is supported by the auxiliary bracket, and the auxiliary bracket supports the crankshaft along the axial direction through the thrust plate at one end, far away from the stator, of the bearing part, so that the end face of the crankshaft can be in sliding contact with the thrust plate; and through a plurality of supporting parts and casing fixed connection, promote auxiliary support's bearing capacity and structural strength, have higher reliability to improved the rigidity of the axial thrust structure of bent axle, reduced the amplitude of bent axle along with auxiliary support axial fluctuation, axial stability is higher when making the bent axle operation, reduces axial float, and then reduces the production of abnormal sound, reaches the purpose that reduces refrigeration plant running noise, promotes user's use experience and feels.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic cross-sectional view of a scroll compressor according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing a structure of a scroll compressor according to an embodiment of the present utility model in a state in which a casing is not shown;

FIG. 3 is a schematic view of the structure of a sub-mount according to an embodiment of the present utility model;

FIG. 4 is a schematic top view of a sub-mount according to an embodiment of the present utility model;

fig. 5 is a schematic axial force diagram of a shafting assembly of a scroll compressor in accordance with the present utility model.

Reference numerals:

a housing 100; a mounting cavity 110;

a main stand 200; a first shaft hole 210;

a sub-bracket 300; a bearing portion 310; a second shaft hole 311; a connection hole 312; a support portion 320; a support plate 321; reinforcing ribs 322; a mounting hole 323; a thrust plate 330;

a drive assembly 400; a stator 410; a rotor 420; a balance block 421;

a compression assembly 500; a fixed scroll 510; a flange 511; orbiting scroll 520;

a crankshaft 600; an oil passage 610; an oil suction pipe 611;

scroll compressor 1000.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "axial," "radial," "upper," "lower," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that terms such as arrangement, installation, connection, etc. should be construed broadly, and those skilled in the art may reasonably determine the specific meaning of the foregoing terms in the present utility model in combination with the specific content of the technical solution.

The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is apparent that the embodiments described below are some, but not all embodiments of the utility model.

It can be understood that the axial movement of the shafting assembly is one of the main factors for generating abnormal sound in the actual operation of the compressor, and the axial stress conditions of the shafting assemblies of different types of compressors in the actual operation are different. Referring to FIG. 5, FIG. 5 shows the axial stress condition of the shafting assembly of the scroll compressor, consisting essentially of rotor gravity G, axial magnetic pull F _m Axial gas force F _p Supporting force F of thrust plate _z In order to avoid axial play caused by the shafting component separating from the thrust plate, the following formula needs to be satisfied: f (F) _z ＝G+F _m -F _p And is more than or equal to 0. However, when the scroll compressor is operated at a high rotational speed and a high discharge pressure, the pressure difference of the refrigerant gas pressure pulsation inside the scroll compressor is increased, and the shafting assembly is subjected to the axial gas force F _p The influence of (1) is broken away from, strikes the phenomenon of thrust plate to send out abnormal sound, lead to the production of noise, seriously influence user's use experience sense.

In the related art, a method for reducing axial movement of a shafting assembly is providedThe method comprises the following steps: reducing gas pressure difference (reducing gas force F) _p ) Increasing the weight of the rotor or crankshaft (increasing the weight G), designing the rotor position higher than the stator (increasing the magnetic pull F) _m ). However, the above methods often suffer from the following disadvantages: the efficiency of the scroll compressor is reduced, the shaft play abnormal sound improving effect is unstable, and the improving effect depends on the high-precision machining and assembling process of the shafting assembly.

Based on this, the rigidity of the axial thrust structure can be improved by optimizing the structure of the auxiliary bracket 300, the amplitude of axial fluctuation of the crankshaft 600 along with the auxiliary bracket 300 is reduced, the axial stability is higher when the shafting component operates, the axial movement is reduced, the abnormal sound is further reduced, the purpose of reducing the operation noise of the refrigeration equipment is achieved, and the use experience of a user is improved.

Referring to fig. 1 and 2, a scroll compressor 1000 provided by an embodiment of the present utility model includes a housing 100, an installation cavity 110 is provided in the housing 100, a main bracket 200, an auxiliary bracket 300, a driving assembly 400, a compression assembly 500 and a crankshaft 600 are installed in the installation cavity 110, wherein the main bracket 200 and the auxiliary bracket 300 are fixedly connected with an inner peripheral wall of the installation cavity 110, the main bracket 200 is disposed near an upper end of the installation cavity 110, the auxiliary bracket 300 is disposed near a lower end of the installation cavity 110, the main bracket 200 is provided with a first shaft hole 210, the auxiliary bracket 300 is provided with a second shaft hole 311, the driving assembly 400 is installed between the main bracket 200 and the auxiliary bracket 300, the compression assembly 500 is located above the main bracket 200 and is connected with the main bracket 200, the crankshaft 600 is connected with the driving assembly 400 and the compression assembly 500, and both ends of the crankshaft 600 are respectively penetrated through the first shaft hole 210 and the second shaft hole 311, so that the crankshaft 600 is supported.

Referring to fig. 1, a driving assembly 400 according to an embodiment of the present utility model includes a stator 410 and a rotor 420, wherein the stator 410 is fixedly connected to an inner peripheral wall of the installation cavity 110, and in particular, the stator 410 and the housing 100 are interference fit through a shrink fit, and then the stator 410 and the housing 100 are fixed by spot welding. The rotor 420 is connected with the crankshaft 600 through shrink fit to form a shafting assembly, the crankshaft 600 penetrates through the rotor 420, the rotor 420 is arranged in the stator 410, and the rotor 420 and the stator 410 are matched to realize the function of a motor, so that when the stator 410 drives the rotor 420 to rotate, the crankshaft 600 can be driven to rotate.

Referring to fig. 1 and 2, a compression assembly 500 according to an embodiment of the present utility model includes a fixed scroll 510 and an orbiting scroll 520, the fixed scroll 510 is fixedly connected to an end of a main support 200 remote from a stator 410, the orbiting scroll 520 is rotatably disposed between the fixed scroll 510 and the main support 200, the orbiting scroll 520 is provided with an orbiting scroll wrap, the fixed scroll 510 is provided with a fixed scroll wrap, and the orbiting scroll wrap and the fixed scroll wrap are engaged with each other to form a compression chamber. It can be appreciated that the main support 200 is fixed to the housing 100 by spot welding, so that the main support 200 has high supporting strength, the outer circumference of the fixed scroll 510 is provided with a flange 511, and the flange 511 is fixedly connected to the main support 200 by screws; in some embodiments, the fixed scroll 510 may be connected to the main support 200 through a guide stud, so that the fixed scroll 510 can move up and down along the guide stud in a small amplitude, and different connection structures are selected according to practical application requirements.

Referring to fig. 1, it can be understood that the upper end of the crankshaft 600 passes through the first shaft hole 210 and is connected with the orbiting scroll 520, and in particular, a sliding bearing is built in the lower end of the orbiting scroll 520, and is assembled and connected with the upper end of the crankshaft 600 through the sliding bearing, and a motor is used to provide a driving force, and a motor torque force is transmitted to the orbiting scroll 520 through a shafting assembly, thereby compressing a refrigerant gas sucked into a compression chamber, and achieving an effect of compressing the refrigerant. The crankshaft 600 is supported by the main frame 200 and the sub-frame 300 during operation, and stable operation can be achieved.

In addition, as shown in fig. 1, considering that the crankshaft 600 drives the orbiting scroll 520 to eccentrically rotate, in order to make the rotor 420 stably run, the counter weight 421 is added to the rotor 420, and the counter weight 421 is fixedly connected with the rotor 420 by cast aluminum riveting, so that the counter weight 421 can rotate together with the rotor 420, thereby achieving the purpose of stabilizing the rotation of the rotor 420.

Referring to fig. 2 and 3, the sub-bracket 300 according to the embodiment of the present utility model includes a bearing portion 310 and a plurality of supporting portions 320, the bearing portion 310 is in a cylindrical structure and is located at a central position of the sub-bracket 300, the second shaft hole 311 is provided in the bearing portion 310, the plurality of supporting portions 320 are arranged at intervals along a circumferential direction of the bearing portion 310, one end of the supporting portion 320 is connected with the bearing portion 310, and the other end is connected with an inner circumferential wall of the mounting cavity 110, so that the sub-bracket 300 is effectively fixed, and the bearing portion 310 and the supporting portion 320 are in an integrally formed structure, thereby having a strong supporting strength.

As can be understood from fig. 1, the end of the bearing portion 310 away from the stator 410 is provided with a thrust plate 330, and the thrust plate 330 is fixedly connected with the end of the bearing portion 310, or the thrust plate 330 and the bearing portion 310 may be integrally formed, and the thrust plate 330 supports the crankshaft 600 and can bear the load applied by the shafting assembly along the axial direction; meanwhile, a platform for generating a lubrication and support oil film can be provided for the crankshaft 600 through the thrust plate 330, and an oil film is formed between the upper surface of the thrust plate 330 and the lower end surface of the crankshaft 600 during operation, so that the crankshaft 600 stably operates, friction and collision during operation of the crankshaft 600 are reduced, and the effect of reducing vibration noise is achieved.

Referring to fig. 1, it may be understood that the number of the supporting parts 320 may be three, four or more, so that the bearing capacity and the structural strength of the auxiliary bracket 300 may be effectively improved, the reliability of the overall structure of the auxiliary bracket 300 may be enhanced, and when the supporting strength of the auxiliary bracket 300 is increased, the rigidity of the thrust plate 330 and the auxiliary bracket 300, which cooperates with the thrust structure of the crankshaft 600, may also be improved, so that the amplitude of axial fluctuation of the crankshaft 600 along with the auxiliary bracket 300 may be reduced, the axial stability of the crankshaft 600 may be higher during operation, the axial play may be reduced, and the abnormal sound may be further reduced, so that the purpose of reducing noise may be achieved.

Referring to fig. 3 and 4, in some embodiments, the supporting portion 320 is a supporting plate 321, the supporting plates 321 are six, the six supporting plates 321 are arranged at the periphery edge of the top of the bearing portion 310 at equal intervals, each supporting plate 321 extends towards the direction away from the bearing portion 310, the lower end of the crankshaft 600 passes through the second shaft hole 311, and the bearing portion 310 is supported by the six supporting plates 321, so that a reliable supporting effect can be provided for the lower end of the crankshaft 600, the axial stability of the operation of the crankshaft 600 is higher, the axial play is reduced, the abnormal sound is reduced, and a better optimizing effect is provided.

It should be noted that, by adopting the above structure for the auxiliary bracket 300, the axial rigidity of the auxiliary bracket 300 is improved, and the frequency of fixing the auxiliary bracket 300 is increased, and according to the related experimental results, the auxiliary bracket 300 adopts the structure of six support plates 321, so that the frequency of fixing the auxiliary bracket 300 can be increased from 1082Hz to 1873Hz, which is beneficial to preventing resonance of middle and low frequency bands with larger harm, and avoiding resonance noise problem of the housing 100 caused by transmission of internal excitation to the structure of the housing 100.

Referring to fig. 4, in the embodiment, the included angle α between the adjacent support plates 321 is 60 °, so that six support plates 321 can be uniformly proportioned, the adjacent support plates 321 can be equally spaced apart, and when the crankshaft 600 runs, the stress of each support plate 321 is more uniform, and the support of the crankshaft 600 is more stable. It will be appreciated that the sides of adjacent support plates 321 form the above-mentioned angle, and the angle α between adjacent support plates 321 may be changed by adjusting the shape of the support plates 321, for example, the support plates 321 may be configured to be fan-shaped, and in embodiments, the angle α between adjacent support plates 321 may be adjusted to be 55 ° to 65 °, and may be 55 °, 60 °, 65 °, etc.

Referring to fig. 4, in the embodiment, the width L of each support plate 321 is equal to or greater than 28mm, for example, the width L of the support plate 321 may be 28mm, 30mm, 45mm, etc., and it is understood that the support plate 321 can be ensured to have sufficient support strength under the above conditions.

Referring to fig. 3, in the embodiment, each support plate 321 has a thickness H ₁ Are all equal and have a thickness H ₁ Satisfy a thickness H of 14mm or more, for example, of the support plate 321 ₁ It may be 14mm, 16mm, 20mm, etc., it is understood that the auxiliary bracket 300 cooperates with the thrust plate 330 to support the crankshaft 600 in the axial direction, the axial direction of the crankshaft 600 is consistent with the thickness direction of the support plate 321, by increasing the thickness of the support plate 321, the rigidity of the support plate 321 can be improved, the bearing capacity is stronger, the stability of the bottom support during the operation of the shafting assembly is improved, the axial movement is reduced, and the stability of the scroll compressor 100 is also facilitatedPerformance of 0.

Referring to fig. 3, in the embodiment, the end of the support plate 321 far from the bearing portion 310 is provided with a reinforcing rib 322, the reinforcing rib 322 protrudes from the lower end surface of the support plate 321 along the axial direction of the crankshaft 600, and the thickness H of the reinforcing rib 322 ₂ Satisfying 6mm or more, for example, the thickness H of the reinforcing rib 322 ₂ It may be 6mm, 7mm, 8mm, etc., it is understood that the thickness of the end portion of the support plate 321 may be increased by the reinforcing rib 322, and in the case where the thickness of the support plate 321 and the thickness of the reinforcing rib 322 satisfy the above conditions, after the reinforcing rib 322 is increased, the thickness of the end portion of the support plate 321 may be up to 20mm or more, and it is understood in conjunction with fig. 1 that the contact area between the support plate 321 and the inner peripheral wall of the installation groove may be increased, the impact of the radial excitation on the housing 100 may be reduced, and the structural stability may be enhanced, and the thickness of the support plate 321 may be sufficiently strong without increasing, thereby realizing the weight reduction. The end of the supporting portion 320 is fixed to the housing 100 by spot welding, so that the strength of the connection structure is effectively increased, and the sub-bracket 300 is more stable.

Referring to fig. 3 and 4, one end of the supporting plate 321 near the bearing portion 310 is provided with mounting holes 323, the mounting holes 323 are used for connecting oil baffle plates, in the embodiment, the mounting holes 323 are three, the three mounting holes 323 are distributed in the three supporting plates 321 in a central symmetry mode, the three mounting holes 323 are distributed in a triangle mode, the oil baffle plates are located below the supporting plate 321, the oil baffle plates are fixedly connected to the mounting holes 323 through screws, the oil baffle plates are effectively fixed, and the structure is firm and reliable. It is understood that the number of the mounting holes 323 is not limited to three, but may be four or more.

Referring to fig. 1, in the embodiment of the present utility model, a connection hole 312 is provided at an end of the bearing part 310 remote from the stator 410, and the connection hole 312 is connected to the thrust plate 330 by a screw passing through the thrust plate 330, so that the thrust plate 330 is fixedly connected to the bearing part 310. It should be noted that, the thrust plate 330 is provided with a through hole, the lower end of the crankshaft 600 is provided with an oil suction pipe 611, the crankshaft 600 is provided with an oil duct 610 communicated with the oil suction pipe 611, the oil suction pipe 611 extends downwards through the through hole, and the crankshaft 600 carries out oil transportation through the oil suction pipe 611 due to the oil liquid at the bottom of the installation cavity 110. It can be appreciated that the hole diameter of the through hole is smaller than the diameter of the lower end of the crankshaft 600 such that the lower end of the crankshaft 600 cannot pass through the through hole, thereby supporting the crankshaft 600 through the thrust plate 330.

The embodiment of the present utility model also provides a refrigeration apparatus, which may be an air conditioner or the like, including the scroll compressor 1000 of the above embodiment, and compressing a refrigerant using the scroll compressor 1000. As can be understood from fig. 1 and 2, the scroll compressor 1000 supports the crankshaft 600 in the axial direction by the sub-mount 300 and the thrust plate 330 so that the end surface of the crankshaft 600 can be in sliding contact with the thrust plate 330; and through a plurality of supporting parts 320 and casing 100 fixed connection, promote auxiliary stand 300's bearing capacity and structural strength, improved the rigidity of the axial thrust structure of bent axle 600, reduced the amplitude of bent axle 600 along with auxiliary stand 300 axial fluctuation, the axial stability when making bent axle 600 operation is higher, reduces axial float, and then reduces the production of abnormal sound, can reduce refrigeration plant's running noise, promotes user's use experience and feels.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A scroll compressor, comprising:

a housing having a mounting cavity therein;

the main bracket is fixedly connected in the mounting cavity and is provided with a first shaft hole;

the auxiliary bracket is fixedly connected in the mounting cavity and is provided with a second shaft hole;

the driving assembly comprises a stator and a rotor, the stator is fixedly connected to the inner peripheral wall of the mounting cavity and positioned between the main bracket and the auxiliary bracket, and the rotor is rotationally arranged in the stator;

the compression assembly comprises a fixed scroll and a movable scroll, the fixed scroll is fixedly connected to one end of the main support, which is far away from the stator, and the movable scroll is rotationally arranged between the fixed scroll and the main support;

the crankshaft penetrates through the rotor, one end of the crankshaft penetrates through the first shaft hole and is connected with the movable scroll, and the other end of the crankshaft is rotatably arranged in the second shaft hole;

the auxiliary bracket comprises a bearing part and a plurality of supporting parts, wherein the supporting parts are distributed along the circumferential direction of the bearing part and fixedly connected with the inner circumferential wall of the mounting cavity, and one end, far away from the stator, of the bearing part is provided with a thrust plate for supporting the crankshaft.

2. The scroll compressor of claim 1, wherein the bearing portion is a plurality of support plates, six of the support plates being provided at intervals along an outer peripheral edge of the bearing portion.

3. The scroll compressor of claim 2, wherein an included angle between adjacent support plates ranges from 55 ° to 65 °.

4. A scroll compressor as claimed in claim 1 or claim 2, wherein the bearing is a support plate having a width of 28mm or more.

5. A scroll compressor as claimed in claim 1 or claim 2, wherein the bearing is a support plate having a thickness of 14mm or more.

6. The scroll compressor according to claim 5, wherein an end of the support plate remote from the bearing portion is formed with a reinforcing rib protruding in an axial direction of the crankshaft, the reinforcing rib having a thickness of 6mm or more.

7. The scroll compressor according to claim 2, wherein one end of the support plate adjacent to the bearing portion is provided with a plurality of mounting holes for mounting the oil baffle plate, and a plurality of the mounting holes are distributed in the plurality of support plates in a central symmetry.

8. The scroll compressor of claim 1, wherein an end of the bearing portion remote from the bearing portion is welded to the housing.

9. The scroll compressor of claim 1, wherein an end of the bearing portion remote from the stator is provided with a connection hole, and the thrust plate is fixedly connected to the connection hole by a fastener.

10. Refrigeration apparatus comprising a scroll compressor according to any one of claims 1 to 9.

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