CN218376870U - Scroll compressor having a plurality of scroll members - Google Patents

Abstract

The present application provides a scroll compressor. The scroll compressor includes a housing, a non-orbiting scroll member, an orbiting scroll member, a first bearing portion and a second bearing portion. The non-orbiting and orbiting scroll members are housed within the housing, the orbiting scroll member being configured to engage with the non-orbiting scroll member and be capable of orbiting relative to the non-orbiting scroll member to compress a working fluid. The first bearing portion is fixed within the housing and has a first bearing surface for contacting and supporting the non-orbiting scroll member. The second bearing is fixed within the housing and has a second bearing surface for contacting and supporting the orbiting scroll member, wherein the first and second bearing surfaces lie in the same horizontal plane. A scroll compressor according to the present disclosure significantly reduces the dimensional chain between the wrap tip and the scroll end plate, thus improving the precise location of the relative position between the non-orbiting and orbiting scroll members.

Description

Scroll compressor having a plurality of scroll members

Technical Field

The present application 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.

The scroll compressor includes a non-orbiting scroll member and an orbiting scroll member. The non-orbiting and orbiting scroll members are engaged with each other to form a plurality of compression chambers therebetween, thus constituting a scroll compression mechanism. Gaps exist between the end plate of the fixed scroll member and the lap of the movable scroll member and between the end plate of the movable scroll member and the lap of the fixed scroll member. Generally, a seal is provided on the wraps of the non-orbiting and orbiting scroll members to seal between the respective compression chambers when the scroll compressor is in operation.

However, during assembly, the clearance between the end plate and the corresponding scroll is difficult to control, often deviating from the design value, because the dimensional chain between the end plate and the corresponding scroll is long. If the clearance is too large, the sealing effect, the compression performance, and the like are affected. If the clearance is too small, severe wear of the scroll members, overload, and the like may result.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application proposes a scheme capable of effectively controlling a gap between an end plate of a scroll member and a wrap. The scheme according to the application can obviously reduce the size chain between the end plate of the scroll component and the scroll wrap so as to improve the sealing and compression performance.

According to one aspect of the present disclosure, a scroll compressor is provided. The scroll compressor includes a housing, a non-orbiting scroll member, an orbiting scroll member, a first bearing portion and a second bearing portion. The non-orbiting and orbiting scroll members are housed within the shell, the orbiting scroll member being configured to engage with the non-orbiting scroll member and be capable of orbiting relative to the non-orbiting scroll member to compress a working fluid. The first bearing portion is fixed within the housing and has a first bearing surface for contacting and supporting the non-orbiting scroll member. The second bearing portion is fixed within the housing and has a second bearing surface for contacting and supporting the orbiting scroll member, wherein the first and second bearing surfaces lie in the same horizontal plane.

According to the scroll compressor of the present disclosure, since the first bearing surface for supporting the non-orbiting scroll member and the second bearing surface for supporting the orbiting scroll member are located in the same horizontal plane, a dimensional chain between the wrap apex and the scroll end plate can be significantly reduced, thereby improving accurate positioning of the relative position between the non-orbiting scroll member and the orbiting scroll member. Therefore, the scroll compressor according to the present disclosure can improve sealing performance, improving the operating performance of the compressor.

In some embodiments, the non-orbiting scroll member is fixedly attached to the first support portion via a fastener. In this example, for a given compression mechanism diameter, the operating displacement of the scroll compressor may be increased because the size of the structure that fixes the non-orbiting scroll member may be reduced.

In some embodiments, the scroll compressor further comprises a rotating shaft for driving the orbiting scroll member and a bearing housing for rotatably supporting the rotating shaft. The second support portion is formed integrally with the bearing housing or is formed separately and fixedly attached to the bearing housing.

In some embodiments, the first support portion and the second support portion are formed as a unitary piece. In this way, the first support portion and the second support portion can be formed in one machining chuck and process, whereby it can be easily ensured that the first support portion and the second support portion are in the same horizontal plane.

In some embodiments, a connecting portion is provided between the first and second supports, and the first, second supports and connecting portion define a recess for receiving an annular body of an oldham ring.

In some embodiments, the annular body of the oldham ring is located between the connection and an orbiting scroll end plate of the orbiting scroll member. In this way, a compact structure can be obtained, whereby the operating displacement of the scroll compressor can be further increased.

In some embodiments, a keyway is provided in the connecting portion that slidingly mates with a key of the oldham ring.

In some embodiments, the scroll compressor further comprises: a partition plate dividing a space inside the housing into a high pressure chamber and a low pressure chamber; a motor located in the low pressure chamber; a sensor channel; a sensor disposed in the sensor channel and configured to sense compressed discharge fluid; a discharge passage configured to communicate the discharge fluid to the low pressure chamber; a valve disposed in the discharge passage and configured to open to allow the discharge fluid to be discharged into the low pressure chamber when a sensed value of the discharge fluid is higher than a predetermined value; and a guide passage provided in a non-orbiting scroll member and configured to guide the discharge fluid from the discharge passage toward the motor.

In some embodiments, the sensor passage and the exhaust passage are disposed in the non-orbiting scroll member and spaced apart in a circumferential direction. Thus, the sensor can be prevented from being damaged by the discharged high-temperature fluid.

In some embodiments, the guide channel is disposed adjacent to the exhaust channel.

In some embodiments, the inlet of the guide channel is disposed adjacent to the outlet of the exhaust channel.

In some embodiments, the scroll compressor further comprises a conduit unit for introducing fluid into the enclosed compression chamber and an opening for receiving the conduit unit. The pipe unit includes a first pipe fixed to the housing. The first pipe includes a small diameter portion inserted into the opening and a large diameter portion abutting and fixed to an outer peripheral surface of the housing. There is a gap between the small diameter portion and a wall of the opening. In this way, the position of the first conduit in the opening of the housing can be adjusted to align it with the corresponding fluid passage, avoiding seal failure.

In some embodiments, the conduit unit further includes a second conduit fixed to the non-orbiting scroll member within the housing and a connecting conduit between the first conduit and the second conduit. The gap is configured to enable the fluid passage of the first conduit to align with the fluid passage of the second conduit.

In some embodiments, the second conduit is formed as one piece with the non-orbiting scroll member.

In some embodiments, the scroll compressor further comprises an installation tool configured to be inserted into the fluid passages of the first and second conduits such that the fluid passages are aligned.

Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the invention.

Drawings

Features and advantages of one or more embodiments of the present invention will become more readily understood by the following description with reference to the accompanying drawings, in which:

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

FIG. 2 is an enlarged partial schematic view of the scroll compressor of FIG. 1;

FIG. 3 is an exploded schematic view of a portion of the scroll compressor of FIG. 1;

FIG. 4 is a perspective view of a bearing of the scroll compressor of FIG. 1;

FIG. 5 is a top schematic view of the support of FIG. 4;

FIG. 6 is a cross-sectional schematic view of the support of FIG. 4;

FIG. 7 illustrates a dimensional relationship between an end plate of a scroll member and a scroll wrap top surface of a scroll compressor;

FIG. 8 is a schematic perspective view of a non-orbiting scroll member of a scroll compressor according to another embodiment of the present disclosure;

FIG. 9 is a cross-sectional schematic view of the non-orbiting scroll member of FIG. 8 through a sensor passage;

FIG. 10 is a cross-sectional schematic view of the non-orbiting scroll member of FIG. 8 through the discharge passage and the pilot passage;

FIG. 11 is a schematic longitudinal cross-sectional view of a portion of a scroll compressor including a piping unit according to another embodiment of the present disclosure;

FIG. 12 is an enlarged schematic view of a portion of the piping unit of FIG. 11; and

fig. 13 is a schematic view illustrating installation of the piping unit of fig. 11.

It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features. Furthermore, it should be understood that the various components in the drawings are not necessarily drawn to scale. For example, certain features may be shown exaggerated in form for clarity.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings.

The exemplary embodiments are provided so that this disclosure will be thorough and will more fully convey the scope to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

A scroll compressor 100 according to an embodiment of the present disclosure will be described below with reference to fig. 1 to 3. Fig. 1-3 are a schematic longitudinal cross-sectional view, an enlarged partial schematic view, and an exploded partial schematic view, respectively, of a scroll compressor 100 according to an embodiment of the present disclosure.

Referring to fig. 1-3, a scroll compressor 100 includes a housing 10 defining a sealed interior space. The housing 10 includes a generally cylindrical case 11, and a top cover 12 and a bottom cover 13 respectively located at both ends of the case 11.

A scroll compression mechanism for compressing a working fluid is provided in the housing 10. The scroll compression mechanism includes a fixed scroll member 20 and an orbiting scroll member 30. The non-orbiting and orbiting scroll members 20 and 30 engage each other to define therebetween a series of compression chambers having a volume that gradually decreases from a radially outer side to a radially inner side to compress a working fluid. When the scroll compressor 100 is operated, the orbiting scroll member 30 orbits relative to the non-orbiting scroll member 20, i.e., the orbiting scroll member 30 does not rotate about its own central axis, but the central axis of the orbiting scroll member 30 rotates about the central axis of the non-orbiting scroll member 20.

The non-orbiting scroll member 20 includes a non-orbiting scroll end plate 21 and a non-orbiting scroll wrap 22 extending from one side of the non-orbiting scroll end plate 21. Similarly, orbiting scroll member 30 includes an orbiting scroll end plate 31 and an orbiting scroll wrap 32 extending from one side of orbiting scroll end plate 31. Compression pockets are defined by end plates 21, 31 and wraps 22, 32 of the non-orbiting and orbiting scroll members 20, 30. There is a predetermined gap between stationary scroll end plate 21 and the top surface of orbiting scroll wrap 32 and between orbiting scroll end plate 31 and the top surface of stationary scroll wrap 22. A groove for receiving a seal 41 is provided on the top surface of the scrolls 22, 32. When the scroll compressor 100 is in operation, sealing between adjacent compression chambers is achieved by seals 41.

The fixed scroll end plate 21 is provided with an exhaust port 24, and the compressed high-temperature working fluid is discharged from the compression mechanism through the exhaust port 24. The discharge port 24 is generally positioned at the substantial center of the non-orbiting scroll end plate 21. Non-orbiting scroll member 20 may further include a cylindrical portion 23 extending from the other side of non-orbiting scroll end plate 21. The space defined by the cylindrical portion 23 communicates with the exhaust port 24.

The scroll compressor 100 may also include a partition plate 54 for dividing the enclosed space within the housing 10 into a high pressure chamber and a low pressure chamber. The high pressure chamber is defined by the top cover 12 and the partition plate 54, and the low pressure chamber is defined by the partition plate 54, the cylindrical housing 11, and the bottom cover 13. The working fluid discharged from the discharge port 24 enters the high-pressure chamber through a discharge assembly provided between the partition plate 54 and the cylindrical portion 23, and is discharged from the high-pressure chamber out of the scroll compressor 100 through a discharge pipe. The compression mechanism is located in the low pressure chamber.

Orbiting scroll member 30 may also include a hub 33 extending from the other side of orbiting scroll end plate 31. Hub 33 is driven by a rotating shaft 50, thereby causing orbiting scroll member 30 to orbit relative to non-orbiting scroll member 20. An eccentric crank pin 51 is formed at one end of the rotating shaft 50. An eccentric crank pin 51 is fitted in the hub 33.

The rotary shaft 50 is driven by a motor 52. The motor 52 includes a stator and a rotor. The stator is fixed to the housing 10 (in the specific example in the drawing, the cylindrical housing 11), and the rotor is fixed to the rotary shaft 50. When the motor 52 is started, the rotary shaft 50 rotates together with the rotor. The motor 52 may be located in the low pressure chamber.

A bearing housing 70 is provided between the motor 52 and the orbiting scroll member 30. The bearing housing 70 is fixed to the housing 10 (in the specific example in the drawing, a cylindrical housing 11). The rotary shaft 50 is rotatably supported by a bearing housing 70 via a bearing. The scroll compression mechanism is located on one side of the bearing housing 70 and is supported by the bearing housing 70.

A separate bearing 80 may also be provided between bearing housing 70 and orbiting scroll member 30. The support 80 is fixed to the bearing housing 70. Orbiting scroll end plate 31 of orbiting scroll member 30 is slidably supported on support 80. Referring to FIG. 2, non-orbiting scroll member 20 is attached to a support 80 via fasteners 43, such as screws. Through holes 27 for receiving fasteners 43 are provided in the outer peripheral wall 25 of the non-orbiting scroll member 20, and threaded holes 87 for engagement with fasteners 43 in the form of screws are provided in the bearing 80. The end surface 26 of the outer peripheral wall 25 of the non-orbiting scroll member 20 is also supported by the support 80.

An oldham ring 90 is provided between the bearing 80 and the orbiting scroll end plate 31. The oldham ring 90 is configured to prevent rotational movement of the orbiting scroll member 30 about its axis when the scroll compressor 100 is in operation. Therefore, the orbiting scroll member 30 can perform only an orbiting motion in which the central axis thereof rotates around the central axis of the fixed scroll member 20 by the oldham ring 90. Referring to fig. 3, the oldham ring 90 has an annular body, a pair of keys 94 disposed on an upper surface of the annular body, and a pair of keys 95 disposed on a lower surface of the annular body. Key 94 engages keyway 34 of orbiting scroll end plate 31 and is slidable in keyway 34. The key 95 engages the keyway 85 of the support 80 and is able to slide in the keyway 85. The sliding direction of the key 94 is substantially perpendicular to the sliding direction of the key 95.

A support 80 according to an embodiment of the present disclosure will be described below with reference to fig. 4 to 6. Fig. 4 to 6 are a perspective view, a top view, and a cross-sectional view of the support member 80, respectively.

As shown in fig. 4 to 6, the bearing 80 includes a first bearing portion 81 for bearing the non-orbiting scroll member 20 and a second bearing portion 82 for bearing the orbiting scroll member 30. The first support portion 81 is located radially outward of the second support portion 82, and has a first support surface 81a for contacting and supporting the non-orbiting scroll member 20 (in the example shown in the drawings, a free end surface of the outer peripheral wall of the non-orbiting scroll member 20). The second support portion 82 has a second support surface 82a for contacting and supporting the orbiting scroll member 30 (in the example shown in the drawings, the lower end surface of the orbiting scroll end plate 31 of the orbiting scroll member 30).

The first bearing surface 81a and the second bearing surface 82a are located in the same horizontal plane. When the support member 80 is machined, both the first support surface 81a and the second support surface 82a may be formed in one chucking and machining process. When non-orbiting scroll member 20 and orbiting scroll member 30 are supported on bearings 80, the relative position between non-orbiting scroll member 20 and orbiting scroll member 30 may be more accurately determined.

Referring to FIG. 7, FIG. 7 illustrates a dimensional relationship between the end plate of the scroll member and the scroll wrap top surface of the scroll compressor 100. As shown in fig. 7, the end face 26 of the outer peripheral wall 25 of the non-orbiting scroll member 20 is in contact with and supported by the first support surface 81a of the support 80, and the lower end surface 36 of the orbiting scroll end plate 31 of the orbiting scroll member 30 is in contact with and supported by the second support surface 82a of the support 80. Since the first bearing surface 81a and the second bearing surface 82a are located in the same horizontal plane, the end surface 26 of the non-orbiting scroll member 20 is located at the same horizontal level as the lower end surface 36 of the orbiting scroll member 30. The distance between lower end surface 36 of orbiting scroll end plate 31 and top surface 38 of orbiting scroll wrap 32 (excluding the top surface of seal 41) is L1. The distance between the end surface 26 of the outer peripheral wall 25 of the non-orbiting scroll member 20 and the inner end surface 27 of the non-orbiting scroll end plate 21 is L2. The gap G between the top surface 38 of orbiting scroll wrap 32 and the inner end surface 27 of non-orbiting scroll end plate 21 may be determined by distances L1 and L2. Accordingly, the dimensional relationship between the top surface 38 of orbiting scroll wrap 32 and the inner end surface 27 of non-orbiting scroll end plate 21 is significantly reduced. The gap G can be accurately obtained by the support 80. The gap between the top surface 28 of the non-orbiting scroll wrap 22 and the inner end surface 37 of the orbiting scroll end plate 31 is similar to the gap G shown in the drawings and will not be described in detail. Since the gap G can be determined relatively accurately, the sealing performance of the compression mechanism can be ensured during the operation of the scroll compressor, thereby improving the operating efficiency of the scroll compressor.

In the example shown in fig. 4 to 6, the first support portion 81 includes a plurality of segments arranged in the circumferential direction. Each section may have a similar structure and may be provided with a threaded bore 87 for receiving a fastener 43. It is to be understood that the structure of the first supporting portion 81 is not limited to the example shown in the drawings, but may be changed as needed. Referring to fig. 2 and 7, the non-orbiting scroll member 20 may be directly fixed to the first bearing portion 81 by a fastener 43. Accordingly, the structure and space for fixing the non-orbiting scroll member 20 may be reduced, and the displacement of the scroll compressor may be increased for a given diameter.

In the example shown in fig. 4 to 6, the second support portion 82 has a continuous circular ring shape. It is to be understood that the structure of the second support portion 82 is not limited to the example shown in the drawings, but may be changed as needed, for example, including a plurality of sections arranged in the circumferential direction.

The support member 8 also has a connecting portion 83 for connecting the first support portion 81 and the second support portion 82. The thickness of the connection portion 83 may be smaller than the thickness of the first and second support portions 81 and 82. As shown, the first support portion 81, the second support portion 82, and the connecting portion 83 may define a substantially U-shaped cross-section. With this structure, a recess 84 for accommodating an annular body 92 of the oldham ring 90 is defined by the first support portion 81, the second support portion 82, and the connecting portion 83 (see fig. 6). A key groove 85 for slidably fitting with a key 95 of the oldham ring 90 may also be provided in the connecting portion 83.

Referring to fig. 2 and 7, when the scroll compressor 100 is assembled, the oldham ring 90 (in particular, the annular body 92) is located between the connection portion 83 and the orbiting scroll end plate 31 of the orbiting scroll member 31. When the scroll compressor 100 is operated, the oldham ring 90 slides in the recess 84, specifically, in the extending direction of the key groove 85. The keyway 85 may be disposed between adjacent sections of the first support 81. Such a compact configuration may save space in the scroll compressor. The scroll compressor 100 according to the present disclosure may have a greater displacement than a scheme in which the oldham ring is disposed between the non-orbiting scroll member 20 and the orbiting scroll member 30.

It should be understood that the structure of the bearing member 80 of the scroll compressor 100 according to the present disclosure should not be limited to the specific example shown in the drawings, but may be changed as desired. For example, the first support portion 81 and the second support portion 82 may be separate members as long as it is ensured that the first support surface 81a and the second support surface 82a are in the same horizontal plane. For example, the support 80 (and in particular the second support 82) may be formed as one piece with the bearing housing 70. The support 80 may also be provided with various structures, such as for mounting or positioning purposes or for mating with associated components, for example.

A non-orbiting scroll member 20 according to an embodiment of the present disclosure will be described with reference to fig. 8 to 10. Fig. 8 to 10 are a perspective view and a cross-sectional view of the non-orbiting scroll member 20, respectively.

As shown in fig. 8 to 10, an exhaust passage 29a, a guide passage 29b, and a sensor passage 29c are provided in the non-orbiting scroll member 20. The exhaust passage 29a is configured to be able to discharge the compressed exhaust fluid into the low pressure chamber. A valve 45 is provided in the exhaust passage 29a to allow or prevent the exhaust fluid from being discharged into the low pressure chamber. The guide passage 29b is configured to guide the outflow of the discharge fluid from the discharge passage 29a to the motor 52 in the low pressure chamber. A sensor 46 is provided in the sensor channel 29c for sensing the compressed discharge fluid.

For example, the sensor 46 is used to sense the temperature of the exhaust fluid. When sensor 46 senses that the temperature of the exhaust fluid is above a predetermined temperature, valve 45 opens to allow high temperature exhaust fluid to flow to motor 52 via exhaust passage 29a and pilot passage 29 b. The motor 52, upon receiving the high temperature fluid, activates an automatic protection device, such as a power cut or shutdown, to thereby protect the scroll compressor.

The exhaust passage 29a and the sensor passage 29c are provided at intervals in the circumferential direction. Thus, the high-temperature fluid flowing out of the discharge passage 29a will not cause damage to the sensor 46 in the sensor passage 29c due to the high temperature.

The guide passage 29b may be provided adjacent to the exhaust passage 29a so as to directly and rapidly guide the high-temperature fluid to the motor 52 while preventing damage to the sensor 46. The guide passage 29b penetrates the end plate 21 and has an inlet adjacent to the outlet of the exhaust passage 29a, as shown in fig. 10.

It should be understood that the structure, orientation, position, size, etc. of each of the passages 29a to 29c may be changed as needed as long as it can prevent damage to the sensor 46 and can guide the high-temperature fluid to the motor 52.

A scroll compressor 200 according to another embodiment of the present disclosure will be described with reference to fig. 11 to 13. FIGS. 11-13 are a cross-sectional schematic view, an enlarged schematic view, and an installation schematic view, respectively, of a portion of a scroll compressor 200.

Referring to fig. 11 to 13, the scroll compressor 200 is different from the scroll compressor 100 in that a piping unit 60 is further included. The piping unit 60 is configured for introducing an external fluid into the closed compression chamber (particularly, the middle pressure compression chamber) of the compression mechanism to enhance the operation capacity of the scroll compressor. The closed compression chambers described herein are distinguished from open suction compression chambers, into which low pressure working fluid is introduced, and open discharge compression chambers, from which compressed fluid is discharged. That is, the closed compression chamber is a compression chamber located between the suction compression chamber and the discharge compression chamber along a spiral path.

The piping unit 60 includes a first piping 60a fixed to the casing 10 (the example in the drawing is specifically the cylindrical housing 11) of the scroll compressor 200, a second piping 60b fixed to the compression mechanism, and a connecting piping 60c between the first piping 60a and the second piping 60 b. The first duct 60a, the second duct 60b, and the connecting duct 60c have fluid passages communicating with each other. The connecting conduit 60c is generally in the shape of a dog bone. Seals 68 are provided between both ends of the connection pipe 60c and the first and second pipes 60a and 60b, respectively.

The cylindrical housing 11 of the scroll compressor 200 is provided with an opening 11a for receiving the first conduit 60 a. The first pipe 60a includes a small diameter portion 61 inserted into the opening 11a and a large diameter portion 62 abutted and fixed to the outer peripheral surface of the housing 11. A gap 65 is provided between the small diameter portion 61 and the wall of the opening 11a. Due to the presence of the gap 65, the position of the first conduit 60a in the opening 11a may be adjusted such that the fluid passage of the first conduit 60a is aligned with the fluid passage of the second conduit 60 b. Thus, the connecting duct 60c between the first duct 60a and the second duct 60b is not skewed, so that the sealing function of the sealing member 68 can be ensured. The gap 65 may be sized as desired so long as it is capable of performing the functions described herein.

The position of the first pipe 60a in the opening 11a can be adjusted by an installation tool 63 as shown in fig. 13 so that the fluid passages of the first pipe 60a and the second pipe 60b are aligned with each other. After the fluid passages of the first and second conduits 60a and 60b are aligned with each other, the large diameter portion 62 is fixed to the housing 11 by, for example, welding.

It is to be understood that the structure of the various components of the scroll compressor 200 according to the present disclosure is not limited to the specific examples shown in the drawings, but may be changed as needed as long as the functions described herein are achieved. For example, the second conduit 60b may be formed as one piece with the non-orbiting scroll member 20.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the specific embodiments described and illustrated in detail herein. Various modifications may be made to the exemplary embodiments by those skilled in the art without departing from the scope defined by the claims. It should also be understood that features of the various embodiments may be combined with each other or may be omitted without departing from the scope of the claims.

Claims (15)

1. A scroll compressor, comprising:

a housing;

a non-orbiting scroll member and an orbiting scroll member housed within the housing, the orbiting scroll member configured to engage with the non-orbiting scroll member and to orbit relative to the non-orbiting scroll member to compress a working fluid;

a first bearing portion fixed within the housing and having a first bearing surface for contacting and supporting the non-orbiting scroll member; and

a second bearing portion fixed within the housing and having a second bearing surface for contacting and supporting the orbiting scroll member, wherein the first and second bearing surfaces lie in the same horizontal plane.

2. The scroll compressor of claim 1, wherein the non-orbiting scroll member is fixedly attached to the first support portion via a fastener.

3. The scroll compressor of claim 2, further comprising a rotating shaft for driving the orbiting scroll member and a bearing housing for rotatably supporting the rotating shaft,

the second support portion is formed integrally with the bearing housing, or is formed separately and fixedly attached to the bearing housing.

4. The scroll compressor of claim 3, wherein the first and second bearing portions are formed as a unitary piece.

5. The scroll compressor of claim 4, wherein a connection portion is disposed between the first and second support portions, and the first, second support portions and the connection portion define a recess for receiving an annular body of an Oldham ring.

6. The scroll compressor of claim 5, wherein the annular body of the oldham ring is located between the connection and an orbiting scroll end plate of the orbiting scroll member.

7. The scroll compressor of claim 5, wherein a key slot is provided in the connection portion in sliding engagement with a key of the oldham ring.

8. The scroll compressor of any one of claims 1 to 7, further comprising:

a partition plate dividing a space inside the housing into a high pressure chamber and a low pressure chamber;

a motor located in the low pressure chamber;

a sensor channel;

a sensor disposed in the sensor channel and configured to sense compressed discharge fluid;

a discharge passage configured to communicate the discharge fluid to the low pressure chamber;

a valve disposed in the discharge passage and configured to open to allow the discharge fluid to be discharged into the low pressure chamber when a sensed value of the discharge fluid is higher than a predetermined value; and

a guide passage disposed in a non-orbiting scroll member and configured to guide the discharge fluid from the discharge passage toward the motor.

9. The scroll compressor of claim 8, wherein the sensor passage and the discharge passage are disposed in the non-orbiting scroll member and spaced apart in a circumferential direction.

10. The scroll compressor of claim 8, wherein the pilot passage is disposed adjacent the discharge passage.

11. The scroll compressor of claim 10, wherein an inlet of the pilot passage is disposed adjacent an outlet of the discharge passage.

12. The scroll compressor of any one of claims 1 to 7, further comprising a conduit unit for introducing fluid into the enclosed compression chamber and an opening for receiving the conduit unit,

the pipe unit includes a first pipe fixed to the housing,

the first pipe includes a small diameter portion inserted into the opening and a large diameter portion abutting and fixed to an outer peripheral surface of the housing,

there is a gap between the small diameter portion and a wall of the opening.

13. The scroll compressor of claim 12, wherein the conduit unit further comprises a second conduit fixed to the non-orbiting scroll member within the housing and a connecting conduit between the first conduit and the second conduit,

the gap is configured to enable the fluid passage of the first conduit to align with the fluid passage of the second conduit.

14. The scroll compressor of claim 13, wherein the second conduit is formed as one piece with the non-orbiting scroll member.

15. The scroll compressor of claim 13, further comprising an installation tool configured to be inserted into the fluid passages of the first and second conduits such that the fluid passages are aligned.

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