FR3067412B1 - SPIRAL COMPRESSOR WITH FLUID DIVERTING DEVICE - Google Patents

Abstract

The scroll compressor (2) has an outer shell (4); a refrigerant suction inlet (7) formed in the outer shell (4) and configured to supply the scroll compressor (2) with refrigerant to be compressed; a compression unit (11) configured to compress the refrigerant; a drive motor (21) configured to drive the compression unit (11) through a drive shaft (19); a fluid diverting and dividing device (35) configured to divide a refrigerant suction flow entering the scroll compressor (2) through the refrigerant suction inlet (7) at least one first flow (F1) and a second flow (F2). The fluid diverting and dividing device (35) has a first end (37) facing the refrigerant suction inlet (7) and a second end (38) which is closer to the refrigerant suction unit (7). compression (11) that the first end (37), the fluid deflection and dividing device (35) being configured to guide the first flow (F1) to the compression unit (11) and to guide the second flow ( F2) to the drive motor (21).

Description

Field of the invention

The present invention relates to a scroll compressor, and in particular to a hermetic scroll compressor.

Background of the invention

US6474964 discloses a scroll compressor comprising: - an outer shell delimiting a suction chamber, - a refrigerant suction inlet formed in the outer shell and configured to supply the scroll compressor with refrigerant to be compressed, - a compression unit configured to compress the refrigerant; - a drive motor configured to drive the compression unit through a drive shaft; - a fluid deflection and dividing device configured to divide a refrigerant suction flow entering the scroll compressor through the refrigerant suction inlet at least a first flow and a second flow, and is configured to deflect the first flow towards the center of the suction chamber where the refrigerant is charged with particles of oil the presence of oil cloud generation elements located in the suction chamber and for deflecting the second flow to the drive motor to cool at least portions of the drive motor, for example the stator windings, rotor, magnets, etc., and where the second flow is also loaded into oil particles.

As a result, the second flow experiences a certain pressure drop due to flow through narrow passages through the drive motor, and the first flow also experiences some pressure drop due to the configuration of the flow device. deviation and fluid division.

Consequently, the total pressure drops in the first and second flows are high, and the overall efficiency of the scroll compressor is therefore low. Summary of the invention

An object of the present invention is to provide an improved scroll compressor which can overcome the disadvantages encountered in conventional scroll compressors.

Another object of the present invention is to provide a scroll compressor which has improved efficiency while controlling engine cooling.

According to the invention, such a scroll compressor comprises: - an outer shell, - a refrigerant suction inlet formed in the outer shell and configured to feed the scroll compressor with refrigerant to be compressed, - a compression unit configured to compress the refrigerant; - a drive motor configured to drive the compression unit through a drive shaft; - a fluid deflection and dividing device configured to divide a flow of refrigerant suction entering the scroll compressor through the refrigerant suction inlet at least in a first flow and a second flow, characterized in that the fluid deflection and dividing device has a first end forming facing the refrigerant suction inlet, that is to say located in front of the refrigerant suction inlet, and a second end which is closer to the compression unit than the first end, the fluid diverting and dividing device being configured to guide, i.e. deflect the first flow to the compression unit and to guide, i.e. deflect, the second flow to the drive motor.

Such a configuration of the deflection and fluid splitting device directly guides the first flow to the compression unit, and thus substantially increases the efficiency of the scroll compressor.

In addition, the fluid deflection and splitting device according to the present invention induces lower friction losses and less turbulence, and thus substantially reduces pressure drops, which is particularly important in scroll compressors using refrigerants. low density (such as R134a) and a high volume flow rate.

Further, such a configuration of the fluid diverting and dividing device provides control of the engine cooling as a function of the positioning of the fluid diverting and dividing device with respect to the refrigerant suction inlet and the engine. drive.

In addition, such a configuration of the deflection and fluid division device ensures control of the percentage of refrigerant which is guided directly to the compression unit and the percentage of refrigerant which is guided to the drive motor based on the height of the first end of the deflection and fluid splitting device with respect to the refrigerant suction inlet.

In addition, such a configuration of the deflection and fluid division device makes it possible to control the oil circulation rate, since part of the refrigerant suction flow entering the scroll compressor is directly guided towards the scroll compressor.

The scroll compressor may also include one or more of the following features, taken alone or in combination.

According to one embodiment of the invention, the device for deflecting and dividing fluid is configured so that the first flow is directly guided to the compression unit.

According to one embodiment of the invention, the scroll compressor is a hermetic scroll compressor.

According to one embodiment of the invention, the refrigerant suction inlet opens radially into an interior volume defined by the outer shell.

According to one embodiment of the invention, the first end and the second end are offset relative to each other in an axial direction of the drive shaft, and are advantageously offset vertically one compared to each other.

According to one embodiment of the invention, the device for deflecting and dividing fluid is stationary relative to the outer shell.

According to one embodiment of the invention, the device for deflecting and dividing fluid comprises an intermediate portion located between the first and second ends, the intermediate part comprising a bottom plate and a plurality of blades projecting from the plate. background. The presence of said vanes improves guidance and propagation of the first flow to the compression unit, ensures a better distribution of the refrigerant inside the outer shell, and thus further improves the efficiency of the scroll compressor.

According to one embodiment of the invention, the vanes of the plurality of vanes diverge from each other towards the second end of the deflection and fluid division device. Such a blade configuration provides circumferential guidance of the refrigerant in the interior volume defined by the outer shell, and ensures homogeneous refrigerant velocities through refrigerant openings provided in the support frame which partially carries the refrigerant unit. compression.

According to one embodiment of the invention, each of the plurality of blades extends substantially to the second end of the deflection and fluid splitting device.

According to one embodiment of the invention, the plurality of blades comprises a plurality of main blades and a plurality of intermediate blades, each intermediate blade extending between two adjacent main blades and having a length less than a length of each of the two adjacent main blades. Such a configuration of the blades ensures a homogeneous distribution of the refrigerant in the interior volume delimited by the outer shell, and thus limits the pressure losses in the refrigerant openings provided in the support frame.

According to one embodiment of the invention, each intermediate blade has a leading edge curved inwards.

According to one embodiment of the invention, each main blade extends substantially from the first end of the fluid deflection and dividing device, and each intermediate blade is offset from the first end of the deflection and dividing device. of fluid.

According to one embodiment of the invention, the plurality of main blades comprises two outer main blades and a plurality of inner main blades located between the two main outer blades, each of the two main outer blades having a height greater than a height of each of the two inner main blades.

According to one embodiment of the invention, each of the two main outer blades projects from the first end of the fluid deflection and dividing device and towards the refrigerant suction inlet.

According to one embodiment of the invention, the two main outer vanes define two lateral edges of the device for deflecting and dividing fluid.

According to one embodiment of the invention, the plurality of vanes delimits divergent and upwardly extending flow channels.

According to one embodiment of the invention, each of the plurality of blades has a substantially constant thickness.

According to one embodiment of the invention, the bottom plate has a curved guide portion extending substantially from the first end of the fluid deflection and dividing device, the curved guide portion being configured to guide the first flow. towards the second end of the deflection and fluid splitting device. Such configuration of the bottom plate ensures smooth guidance of the first flow to the compression unit

According to one embodiment of the invention, the scroll compressor further includes an inner shell surrounding the drive motor, the fluid deflection and dividing device being attached to an outer surface of the inner shell. Since the deflection and fluid splitting device is not attached to the outer shell (which is the case for conventional scroll compressors) but is attached to the inner shell, the distance between the fluid suction inlet refrigerant and the device for deflection and fluid division is more important. Thus, the attachment of the deflection and fluid splitting device to the inner shell enables a high turning radius to be set, which reduces the pressure drop and creates a little space for proper azimuthal distribution of the fluid. refrigerant.

According to one embodiment of the invention, the drive motor is fully mounted in the inner shell.

According to one embodiment of the invention, the bottom plate further comprises a mounting portion having a shape substantially complementary to the outer surface of the inner shell.

According to one embodiment of the invention, the second end of the device for deflecting and dividing fluid has a shape substantially complementary to the outer surface of the inner shell.

According to one embodiment of the invention, the inner shell is provided with a refrigerant inlet opening facing the refrigerant suction inlet.

According to one embodiment of the invention, the refrigerant inlet opening is partially covered by the fluid deflection and splitting device. In other words, the fluid deflection and dividing device partially overlaps the refrigerant inlet opening.

In other words, the fluid deflection and splitting device extends at least partially between the refrigerant inlet opening and the refrigerant suction inlet.

According to one embodiment of the invention, the refrigerant inlet opening is partially covered by the curved guide portion of the fluid deflection and dividing device.

According to one embodiment of the invention, the inner shell and the drive motor define a proximal chamber containing a first winding head of a stator, and a distal chamber containing a second winding head of the stator, the first winding head being closer to the compression unit than the second winding head and the second winding head being opposite to the first winding head.

According to one embodiment of the invention, the first winding head is formed by the portions of the stator windings extending outwardly from a first end face of a stator core, and the second winding head is formed by the portions of the stator windings extending outwardly from a second end face of the stator core opposite the first end face.

According to one embodiment of the invention, the refrigerant inlet opening opens into the distal chamber.

According to one embodiment of the invention, the refrigerant inlet opening is configured to establish fluid communication between the distal chamber and an annular volume delimited by the inner shell and the outer shell, the suction inlet of refrigerant opening into the annular volume.

According to one embodiment of the invention, the second end of the deflection and division device extends over at least 120 degrees, and for example about 180 degrees, of the circumference of the inner shell.

According to one embodiment of the invention, the second end of the fluid deflection and dividing device is curved, and advantageously extends along an arc of a circle, for example over at least 120 degrees, and preferably about 180 degrees.

According to one embodiment of the invention, the second end of the device for deflecting and dividing fluid has a radius of curvature substantially equal to a radius of curvature of the outer surface of the inner shell.

According to one embodiment of the invention, the scroll compressor further comprises a support frame which at least partially carries the compression unit and which comprises at least one refrigerant opening, the device for deflecting and dividing the fluid being configured to guide the first flow to the compression unit via the at least one refrigerant opening provided on the support frame.

According to one embodiment of the invention, the device for deflecting and dividing fluid is manufactured by 3D printing.

According to one embodiment of the invention, the material used for the 3D printing of the device for deflecting and dividing fluid is chosen from ABS (Acrylonitrile Butadiene Styrene), PET (Polyethylene Terephthalate), PLA (Acid Polylactic), SLS Nylon, or any other material suitable for 3D printing (plastic or metallic).

According to one embodiment of the invention, the first end of the device for deflecting and dividing fluid is substantially located at the same height as a central portion of the refrigerant suction inlet, and for example at a same height as a central axis of the refrigerant suction inlet.

According to one embodiment of the invention, the support frame comprises a plurality of refrigerant openings which are distributed circumferentially.

According to one embodiment of the invention, the compression unit comprises a fixed volute having a fixed base plate and a fixed spiral winding, and an orbiting scroll having an orbiting base plate and an orbiting spiral winding, fixed spiral winding and the orbiting spiral winding forming a plurality of compression chambers.

According to one embodiment of the invention, the support frame comprises a thrust bearing surface on which the orbiting scroll is slidably mounted.

According to one embodiment of the invention, the support frame comprises an upper radial bearing for guiding the drive shaft.

According to one embodiment of the invention, the drive shaft has a driving portion configured to drive the orbiting scroll in an orbital motion.

According to one embodiment of the invention, an upper end of the inner shell is attached to the support frame.

According to one embodiment of the invention, a lower end of the inner shell is fixed to a centering element fixed to the outer shell, the centering element being provided with a guide bearing configured to guide a part of lower end of the drive shaft.

According to one embodiment of the invention, a flow section of the refrigerant suction inlet has a first flow section portion facing the fluid deflection and dividing device, and a second portion of flow section which is offset in the axial direction of the drive shaft, and for example offset vertically, relative to the deflection and fluid splitting device. The second flow section portion may for example face the refrigerant inlet opening.

In other words, the scroll compressor is configured so that an orthogonal projection of the deflection and fluid splitting device on a reference plane which extends perpendicular to a central axis of the suction inlet of the refrigerant partially overlaps an orthogonal projection of the refrigerant suction inlet on said reference plane.

According to one embodiment of the invention, the first flow section portion is 20% to 80% of the flow section of the refrigerant suction inlet.

According to one embodiment of the invention, the first flow section portion faces the curved guide portion of the fluid deflection and dividing device.

According to one embodiment of the invention, the curved guide portion of the fluid deflection and dividing device is cup-shaped.

These and other advantages will become apparent from the following description, given the accompanying drawings showing, by way of non-limiting example, an embodiment of a scroll compressor according to the invention.

Brief description of the drawings

The following detailed description of an embodiment of the invention is best understood when read in conjunction with the appended drawings being apprehended, however the invention is not limited to the particular embodiment disclosed.

Figure 1 is a longitudinal sectional view of a scroll compressor according to the invention.

Figure 2 is a partial perspective view of the scroll compressor of Figure 1.

Figure 3 is a partial longitudinal sectional view of the scroll compressor of Figure 1.

Figure 4 is a front view of a deflection and fluid splitting device of the scroll compressor of Figure 1.

Figure 5 is a longitudinal sectional view of the fluid deflection and splitting device of Figure 4.

Detailed description of the invention

Figure 1 shows a scroll compressor 2, and in particular a hermetic scroll compressor, comprising a hermetic enclosure 3 comprising an outer shell 4, an upper cap 5 and a base plate 6. As shown in Figure 1, the shell 4 is cylindrical and has an upper end closed by the upper cap 5 and a lower end closed by the base plate 6. According to the embodiment shown in the figures, the outer shell 4 has a constant diameter along its entire length.

The hermetic scroll compressor 2 further comprises a refrigerant suction inlet 7 provided on the outer shell 4 and configured to supply the hermetic scroll compressor 2 with refrigerant to be compressed, and a discharge outlet 8 configured to repress the compressed refrigerant. For example, the discharge outlet 8 may be provided on the upper cap 5.

The hermetic scroll compressor 2 also comprises a support frame 9 arranged inside the hermetic enclosure 3 and fixed to the hermetic enclosure 3, and a compression unit 11 also arranged inside the hermetic enclosure 3 and disposed above the support frame 9. The compression unit 11 is configured to compress the refrigerant supplied by the refrigerant suction inlet 7, and comprises a fixed volute 12, which is fixed relative to to the hermetic enclosure 3, and an orbiting scroll 13 supported by and in sliding contact with a thrust bearing surface 10 provided on the support frame 9.

The fixed volute 12 comprises a fixed volute base plate 14 having a lower face oriented towards the orbiting volute 13, and an upper face opposite to the lower face of the fixed volute base plate 14. The fixed volute 12 also comprises a fixed spiral winding 15 projecting from the underside of the fixed volute base plate 14 to the orbiting volute 13.

The orbiting scroll 13 has an orbiting scroll base plate 16 having an upper face facing the fixed scroll 12, and a lower face opposite the upper face of the orbiting scroll base plate 16 and slidably mounted on the surface of the Thrust bearing 14. The orbiting scroll 13 also has an orbiting spiral winding 17 projecting from the upper face of the orbiting base plate 16 toward the fixed scroll 12. The orbiting spiral winding 17 meshes with the winding in a fixed spiral 15 to form a plurality of compression chambers 18 therebetween. Each of the compression chambers 18 has a variable volume which decreases from the outside to the inside, when the orbiting scroll 13 is driven to orbit relative to the fixed scroll 12.

In addition, the hermetic scroll compressor 2 includes a drive shaft 19 configured to drive the orbiting scroll 13 in an orbital motion, and a drive motor 21, which may be a variable speed drive motor, coupled to the drive shaft 19 and configured to rotate the drive shaft 19 about an axis of rotation A.

The drive motor 21 has a rotor 22 mounted on the drive shaft 19, and a stator 23 disposed around the rotor 22. The stator 23 includes a stator stack or a stator core 24, and stator windings. The stator windings define a first winding head 25.1 which is formed by the portions of the stator windings extending outwardly from a first end face 24.1 of the core. a stator 24 which is oriented towards the compression unit 11, and a second winding head 25.2 which is formed by the portions of the stator windings extending outwardly from a second end face 24.2 the stator core 24 which is opposed to the compression unit 11.

The hermetic scroll compressor 2 further includes an inner shell 26 surrounding the drive motor 21 and where the drive motor 21 is fully mounted.

As shown in Figure 1, the inner shell 26 and the drive motor 21 define a proximal chamber 27 containing the first winding head 25.1 of the stator 23, and a distal chamber 28 containing the second winding head 25.2 of the stator 23.

The inner shell 26 is further provided with a refrigerant inlet opening 29 facing the refrigerant suction inlet 7 and opening into the distal chamber 28. The refrigerant inlet opening 29 is configured to establish fluid communication between the distal chamber 28 and an annular volume 31 delimited by the inner shell 26 and the outer shell 4.

According to the embodiment shown in the figures, an upper end of the inner shell 26 is fixed to the support frame 9, and a lower end of the inner shell 26 is fixed to a centering element 32 fixed to the outer shell 4.

The hermetic scroll compressor 2 further includes an upper bearing member 33 provided on the support frame 9 and configured to cooperate with an outer circumferential wall surface of an upper end portion of the drive shaft 19, and a lower bearing member 34 provided on the centering member 32 and configured to cooperate with an outer circumferential wall surface of a lower end portion of the drive shaft 19. The lower support member 34 and the upper bearing element 33 are particularly configured to rotatably support the drive shaft 19.

The hermetic scroll compressor 2 also includes a fluid deflection and dividing device 35 attached to an outer surface of the inner shell 26. Advantageously, the fluid deflection and dividing device 35 extends at least partially between the refrigerant inlet opening 29 and refrigerant suction inlet 7.

The hermetic scroll compressor 2 is configured such that an orthogonal projection of the fluid deflection and dividing device 35 on a reference plane which extends perpendicularly to a central axis B of the refrigerant suction inlet 7 partially overlaps an orthogonal projection of the refrigerant suction inlet 7 on said reference plane. In other words, the flow section of the refrigerant suction inlet 7 has a first flow section portion 7.1, i.e. an upper flow section portion, making facing the fluid deflection and dividing device 35, and a second flow section portion, i.e. a lower flow section portion, which is offset vertically with respect to the deflection and fluid division 35 and which is particularly facing a lower portion of the refrigerant inlet opening 29. For example, the first flow section portion 7.1 is from 20% to 80%, preferably about 50%, of the flow section of the refrigerant suction inlet 7.

The fluid deflection and dividing device 35 is thus configured to divide a refrigerant suction flow entering the hermetic scroll compressor 2 through the refrigerant suction inlet 7 into a first flow F1. and a second flow F2, and is further configured to guide the first flow F1 directly to the compression unit 11, through a plurality of refrigerant openings 36 which are provided on the support frame 9 and which are distributed circumferentially, and to guide the second flow F2 to the refrigerant inlet opening 29 to cool at least portions of the drive motor 21.

As best shown in FIGS. 2 to 5, the fluid deflection and dividing device 35 has a first end 37 facing the refrigerant suction inlet 7 and a second end 38 which is closer to the inlet. compression unit 11 that the first end 37. Thus, the first end 37 and the second end 38 are offset vertically relative to each other, and advantageously form respectively lower and upper edges of the deflection device and of fluid division 35.

According to the embodiment shown in the figures, the first end 37 of the fluid deflection and dividing device 35 is substantially located at the same height as a central portion of the refrigerant suction inlet 7, and advantageously substantially at the same height as the central axis B of the refrigerant suction inlet 7.

According to the embodiment shown in the figures, the second end 38 of the fluid deflection and dividing device 35 is curved, and has a radius of curvature substantially equal to a radius of curvature of the outer surface of the inner shell 26. Advantageously, the second end 38 of the deflection and fluid division device 35 extends over at least 120 degrees, and for example about 180 degrees, of the circumference of the inner shell 26.

The fluid deflection and dividing device 35 further includes an intermediate portion 39 located between the first and second ends 37, 38. The intermediate portion 39 includes a bottom plate 41 including a curved guide portion 41.1 extending from the first end 37 of the fluid deflection and dividing device 35, and a mounting portion 41.2 extending from the curved guide portion 41.1 to the second end 38. Advantageously, the mounting portion 41.2 has a shape substantially complementary to the outer surface of the inner shell 26.

According to one embodiment of the invention, the curved guiding portion 41.1 partially overlaps the refrigerant inlet opening 29, and is particularly configured to guide the first flow F1 to the second end 38 of the diverting device and fluid division 35. The curved guide portion 41.1 of the deflection and fluid splitting device 35 may for example have a cup shape. Advantageously, the first flow section portion 7.1 of the refrigerant suction inlet 7 faces the curved guide portion 41.1.

The intermediate portion 39 also includes a plurality of vanes 42 respectively formed by wall portions projecting from the bottom plate 41, and extending along the curved guide portion 41.1 and the mounting portion 41.2.

Advantageously, the blades 42 diverge from each other towards the second end 38 of the fluid deflection and dividing device 35, and define divergent and upwardly extending flow channels 43. In particular, the blades 42 comprise a plurality of main vanes 44 and a plurality of intermediate vanes 45, each intermediate vane 45 extending between two adjacent main vanes 44 and having a length less than a length of each of the two adjacent main vanes 44.

According to the embodiment shown in the figures, each main blade 44 extends from the first end 37 of the fluid diverting and dividing device 35 to the second end 38 of the fluid diverting and dividing device 35. and each intermediate blade 45 is offset from the first end 37 of the fluid deflection and dividing device 35 and extends to the second end 38 of the fluid diverting and dividing device 38. Advantageously, each intermediate blade 45 has a leading edge curved inwards.

Such a configuration of the various blades 42 ensures a circumferential guidance of the refrigerant, from the first flow F1, inside the annular volume 31, and a homogeneous distribution of said refrigerant inside the annular volume 31, and thus ensures homogeneous rates of the refrigerant through the refrigerant openings 36 provided on the support frame 9.

According to the embodiment shown in the figures, the main vanes 44 comprise two main outer vanes 44.1 defining two lateral edges of the deflection and fluid division device 35, and a plurality of inner main vanes 44.2 located between the two main outer vanes 44.1. Advantageously, each of the two main outer blades 44.1 has a height greater than one height of each of the inner main blades 44.2, and protrudes from the first end 37 of the fluid diverting and dividing device 35 and toward the suction inlet. refrigerant 7.

The fluid deflection and dividing device 35 may be manufactured by 3D printing, and the material used for the 3D printing of the fluid deflection and dividing device is selected from ABS (Acrylonitrile Butadiene Styrene), PET ( Polyethylene Terephthalate), PLA (Polylactic Acid), SLS Nylon, or any other material suitable for 3D printing (plastic or metallic). Obviously, the invention is not limited to the embodiment described above by way of non-limiting example, but on the contrary, it encompasses all its embodiments.

Claims (17)

A scroll compressor (2) comprising: - an outer shell (4); - a refrigerant suction inlet (7) formed in the outer shell (4) and configured to supply the scroll compressor (2) with refrigerant to be compressed, - a compression unit (11) configured to compress the refrigerant, - a drive motor (21) configured to drive the compression unit (11) through a shaft of compression drive (19), - a fluid diverting and dividing device (35) configured to divide a refrigerant suction flow entering the scroll compressor (2) through the refrigerant suction inlet ( 7) at least in a first flow (F1) and a second flow (F2), characterized in that the fluid deflection and dividing device (35) has a first end (37) facing the inlet of fri fluid aspiration a gorigene (7) and a second end (38) which is closer to the compression unit (11) than the first end (37), the fluid deflection and dividing device (35) being configured to guide the first flow (F1) to the compression unit (11) and to guide the second flow (F2) to the drive motor (21). The scroll compressor (2) according to claim 1, wherein the fluid deflection and dividing device (35) has an intermediate portion (39) located between the first and second ends (37, 38), the intermediate portion (39) having a bottom plate (41) and a plurality of vanes (42) projecting from the bottom plate (41). The scroll compressor (2) according to claim 2, wherein each of the plurality of vanes (42) extends substantially to the second end (38) of the fluid diverting and dividing device (35). . The scroll compressor (2) according to claim 2 or 3, wherein the plurality of vanes (42) define diverging and upwardly extending flow channels. The scroll compressor (2) according to any one of claims 2 to 4, wherein the plurality of vanes (42) includes a plurality of main vanes (44) and a plurality of intermediate vanes (45), each intermediate vane (45) extending between two adjacent main vanes (44) and having a length less than one length of each of the two adjacent main vanes (44). The scroll compressor (2) according to claim 5, wherein each main blade (44) extends substantially from the first end (37) of the fluid diverting and dividing device (35), and each intermediate blade ( 45) is offset from the first end (37) of the fluid diverting and dividing device (35). The scroll compressor (2) according to claim 5 or 6, wherein the plurality of main vanes (44) comprises two outer main vanes (44.1) and a plurality of inner main vanes (44.2) located between the two outer main vanes ( 44.1), each of the two main outer blades (44.1) having a height greater than one height of each of the inner main blades (44.2). The scroll compressor (2) according to any of claims 2 to 7, wherein the bottom plate (41) has a curved guide portion (41.1) extending substantially from the first end (37) of the device deflecting and dividing fluid (35), the curved guide portion (41.1) being configured to guide the first flow (F1) to the second end (38) of the fluid deflection and dividing device (35). The scroll compressor (2) according to any one of claims 1 to 8, further comprising an inner shell (26) surrounding the drive motor (21), the fluid deflection and dividing device (35). being attached to an outer surface of the inner shell (26). The scroll compressor (2) according to claim 9, wherein the second end (38) of the fluid deflection and dividing device (35) has a shape substantially complementary to the outer surface of the inner shell (26). The scroll compressor (2) according to claim 9 or 10, wherein the inner shell (26) is provided with a refrigerant inlet opening (29) facing the refrigerant suction inlet. (7). The scroll compressor (2) according to claim 11, wherein the refrigerant inlet opening (29) is partially covered by the fluid deflection and dividing device (35). The scroll compressor (2) according to any one of claims 9 to 12, wherein the second end (38) of the deflection and dividing device (35) extends over at least 120 degrees of a circumference of the inner shell (26). The scroll compressor (2) according to any one of claims 1 to 13, further comprising a support frame (9) which at least partially carries the compression unit (11) and which has at least one opening of refrigerant (36), the fluid diverting and dividing device (35) being configured to guide the first flow (F1) to the compression unit (11) through the at least one fluid opening refrigerant (36) provided on the support frame (9). The scroll compressor (2) according to any one of claims 1 to 14, wherein the fluid deflection and dividing device (35) is manufactured by 3D printing. The scroll compressor (2) according to any one of claims 1 to 15, wherein the first end (37) of the fluid diverting and dividing device (35) is substantially at the same height as a portion central of the refrigerant suction inlet (7). The scroll compressor (2) according to any one of claims 1 to 16, wherein a flow section of the refrigerant suction inlet (7) has a first flow section portion (7.1). ) facing the fluid diverting and dividing device (35), and a second flow section portion (7.2) which is offset in an axial direction of the drive shaft (19) relative to the deflection and fluid division (35).