CN217002271U - Scroll compressor having a plurality of scroll members - Google Patents
Scroll compressor having a plurality of scroll members Download PDFInfo
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- CN217002271U CN217002271U CN202123449502.7U CN202123449502U CN217002271U CN 217002271 U CN217002271 U CN 217002271U CN 202123449502 U CN202123449502 U CN 202123449502U CN 217002271 U CN217002271 U CN 217002271U
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Abstract
A scroll compressor comprising: a compressor housing; a bracket mounted within the compressor housing; a first scroll located within the compressor housing; a second scroll located within the compressor housing and co-rotating with the first scroll to define a compression chamber therebetween, the second scroll having a hub extending downwardly from a lower surface thereof; a deforming flange supported on the bracket and supporting the first scroll and the second scroll, the deforming flange being connected to the first scroll; the actuating mechanism is arranged in the compressor shell and connected to the deformation flange so as to drive the deformation flange to rotate and further drive the first scroll plate and the second scroll plate to rotate together; the crankshaft assembly is positioned in the deformation flange and comprises an oiling screw rod, the upper end of the oiling screw rod is matched with the hub of the second scroll plate, and the lower end of the oiling screw rod extends into the oil pool; and a plurality of support members (such as bearings or bushings or washers) located on the same side of the compression chamber.
Description
Technical Field
The utility model relates to a scroll compressor.
Background
The conventional co-rotating scroll compressor (CRC) has a large volume and thus occupies a large space.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above-mentioned problems, and potentially other technical problems.
According to one aspect of the present invention, a scroll compressor is provided. The scroll compressor includes:
a compressor housing; a bracket mounted in the compressor housing; a scroll assembly comprising:
a first scroll located within the compressor housing; and
a second scroll positioned within the compressor housing and co-rotating with the first scroll to define a compression chamber therebetween;
a flange rotatably supported on the bracket and supporting a first scroll and a second scroll, wherein the flange is connected to the first scroll; and
and the actuating mechanism is arranged in the compressor shell and connected to the flange so as to drive the flange to rotate and further drive the first scroll to rotate, and the first scroll drives the second scroll to rotate together, wherein the actuating mechanism comprises an axial flux motor.
Alternatively, the axial flux motor may be a disk motor. Specifically, the axial flux motor includes a stator fixed to the bracket and a rotor coupled to the flange to drive the flange to rotate.
Optionally, the rotor is located below the stator. The axial flux motor has a speed in the range of 0 to 40000 rpm.
Alternatively, the rotor is connected with the flange in an interference manner, and the stator and the bracket are connected by screws. The stator includes a stator yoke, stator teeth, a stator support ring, and windings wound around the stator teeth.
Optionally, the stator further comprises a bobbin, the bobbin is sleeved on the stator teeth, and the winding is wound on the bobbin.
Optionally, the stator yoke is fixedly connected to a stator support ring, and the stator support ring is in interference fit with the compressor housing.
Optionally, the stator is accommodated in a bracket, threaded holes are formed in the outer edge of the bracket and the stator support ring, and the bracket and the stator support ring are fixedly connected through screws.
Optionally, a heat dissipating rib is provided on an outer surface of the stator. The heat dissipating ribs are members that are made separately from the stator, or are members that are integrally molded with the stator.
Optionally, the rotor includes a permanent magnet, a rotor yoke, and a rotor hub, the permanent magnet is supported and fixed by the rotor yoke, and the rotor hub is connected with the flange in an interference manner.
According to another aspect of the present invention, a scroll compressor is provided. The scroll compressor includes:
a compressor housing;
the bracket is arranged in the compressor shell;
a scroll assembly comprising: a first scroll positioned within the compressor housing, and a second scroll positioned within the compressor housing and co-rotating with the first scroll to define a compression chamber therebetween;
a flange rotatably supported on the bracket and supporting the first scroll and the second scroll, wherein the flange is connected to the first scroll;
and an actuating mechanism mounted within the compressor housing and connected to the flange to drive rotation of the flange, the flange driving rotation of the first scroll, the first scroll driving co-rotation of the second scroll, wherein the actuating mechanism comprises a radial flux motor.
By adopting the technical scheme of the utility model, the structure of the scroll compressor is more compact.
Drawings
In order to facilitate understanding of the utility model, the utility model is described below on the basis of exemplary embodiments with reference to the accompanying drawings. The same or similar reference numbers are used in the drawings to refer to the same or similar parts. It should be understood that the drawings are merely schematic.
FIG. 1A is a longitudinal sectional view of a scroll compressor according to an exemplary embodiment of the present invention;
FIG. 1B is an exploded view of the scroll compressor shown in FIG. 1A, with some components omitted from FIG. 1B to make the drawing more concise;
FIG. 2 is a schematic illustration of the suction path, discharge path, and lubrication path of the scroll compressor shown in FIG. 1A;
FIG. 3 is a perspective view of the second scroll shown in FIG. 1B;
FIG. 4 is a longitudinal cross-sectional view of a portion of a scroll compressor according to an exemplary embodiment of the present invention;
fig. 5A, 5B, 5C, and 5D are a perspective view, a side view, a top view, and a sectional view taken along a plane C-C in fig. 5B, respectively, of a stator of a disc motor according to an exemplary embodiment of the present invention.
Fig. 6A, 6B, 6C, and 6D are a perspective view, a side view, a top view, and a sectional view taken along a plane D-D in fig. 6B, respectively, of a rotor of a disc motor according to an exemplary embodiment of the present invention.
Fig. 7A and 7B are a top view and a side view, respectively, of another modification of the stator shown in fig. 5A.
Fig. 8A and 8B are a top view and a side view, respectively, of another modification of the stator shown in fig. 5A.
Fig. 9A and 9B are a top view and a side view, respectively, of another modification of the stator shown in fig. 5A.
Fig. 10 illustrates a longitudinal sectional view of a scroll compressor according to another exemplary embodiment of the present invention.
Detailed Description
Specific embodiments and modifications of the present invention are described in detail below with reference to the accompanying drawings.
[ general construction of scroll compressor ]
Fig. 1A is a longitudinal sectional view of a scroll compressor according to an exemplary embodiment of the present invention. FIG. 1B is an exploded view of the scroll compressor shown in FIG. 1A, with some components omitted from FIG. 1B to make the drawing more concise. Fig. 3 is a perspective view of the second scroll shown in fig. 1B as seen from another perspective.
As shown in fig. 1A and 1B, a scroll compressor according to the present invention includes a compressor housing, a bracket 4 mounted in the compressor housing, a scroll assembly (5, 6), an actuator 7, a flange 8, a plurality of bearings (e.g., bearings or bushings or gaskets) 11, 12, 13, 14, 15, 16, a crankshaft 9, and the like.
Specifically, the compressor housing includes an upper cover 1, a middle case 2, and a lower case 3. The upper cover 1 is provided with a discharge port 1001. A discharge chamber 1002 is formed between the upper cover 1 and the top surface of the middle case 2. The middle case 2 is provided with a suction port 2001 for sucking a fluid (e.g., a refrigerant). An oil sump 31 for storing lubricating oil is formed at the bottom of the lower case 3. The middle casing 2 and the lower casing 3 form a closed space in which the bracket 4, the scroll assemblies (5, 6), the actuator 7, the flange 8, the plurality of bearing members 11, 12, 13, 14, 15, 16, the crankshaft 9, and the like are accommodated. In addition, a plurality of legs 32 are provided on the bottom surface of the lower case 3, and fixing holes 33 are provided on the legs 32 so that the lower case 3 is fixed to a support (e.g., the floor) using fasteners such as fixing screws.
The support 4 comprises a hub 41 and a support arm 42. A plurality of screw holes 43 are opened in the upper surface of the support arm 42. Further, oil leakage holes 44 are provided in the bottom surface where the support arm 42 and the hub 41 are connected. The bracket 4 may be fixed in the lower shell 3 of the compressor, for example, by the lower end of the hub 41 in the lower shell 3.
The scroll assembly includes a first scroll 5 and a second scroll 6. The second scroll 6 is rotatable together with the first scroll 5 to define a compression chamber 56 between the first scroll 5 and the second scroll 6. The first scroll 5 has a scroll wrap 51 extending downward and a center hole 52 at the top thereof. Second scroll 6 has a downwardly extending hub 61 and an upwardly extending wrap 62. The wraps 51 and 62 snap into one another to form compression pockets 56.
The flange 8 is supported on the support 4 and comprises a tray 81, a hub 82 and a central aperture 83. A convex portion 831 and a concave portion 832 may be provided in the central hole 83. The upper surface 811 of the tray 81 supports the first scroll 5 and the second scroll 6. Specifically, the flange 8 may be connected to the first scroll 5 through the tray 81 to drive the first scroll 5 to rotate.
The actuating mechanism 7 may be an axial flux motor (e.g. a disk motor) or a radial flux motor (e.g. an internal permanent magnet motor). The speed of rotation of the actuating mechanism 7 can reach 40000 rpm.
According to an exemplary embodiment of the present invention, the disk motor includes a stator 71 and a rotor 72. The stator 71 may be fixed to the bracket 4 or alternatively directly to the inner wall of the middle shell 2. The central hole 722 of the rotor 72 is fixedly connected to the hub 82 of the flange 8 (e.g., by interference fit, spline fit, etc.) to drive the flange 8 to rotate, so as to drive the first scroll 5 and the second scroll 6 to rotate together, for example, to drive the first scroll 5 to rotate, and the gas force generated by the rotation of the first scroll 5 drives the second scroll 6 to rotate together.
The crankshaft 9 is located in the central hole 83 of the flange 8. The upper end of the crankshaft 9 is connected to the hub 61 of the second scroll 6. Additionally, the scroll compressor may also include an oiling screw 10. The upper end 101 of the upper oil screw 10 is in mating connection with the hub 61 of the second scroll 6, and the lower end 103 of the upper oil screw 10 extends into the oil sump 31.
In an exemplary embodiment of the utility model, all the supports 11, 12, 13, 14, 15, 16 may be disposed on the same side of the compression chamber 56. In the view of fig. 1A, these supports are located on the underside of the compression chamber 56.
In particular, these bearings may comprise a first sliding bearing 11, a second sliding bearing 12 and a third sliding bearing 13. The first sliding bearing 11 is located between the inner peripheral surface of the upper section 92 of the crankshaft 9 and the outer peripheral surface of the hub 61 of the second scroll 6. The second sliding bearing 12 is located between the inner peripheral surface of the central hole 83 of the flange 8 and the outer peripheral surface of the upper section 92 of the crankshaft 9. The third sliding bearing 13 is located between the inner peripheral surface of the central hole 83 of the flange 8 and the outer peripheral surface of the lower section 93 of the crankshaft 9.
A pin slot 96 is provided on the inner surface of the upper section 92 of the crankshaft 9. The pin 19 is inserted in the pin slot 96 and engages with the driving surface 111 of the first sliding bearing 11. The first sliding bearing 11 may comprise a generally cylindrical sleeve body and a bearing housing interference fitted within the sleeve body. The outer circumferential surface of the second sliding bearing part 12 may be provided with a recess 121 and a projection 122 for fitting with the projection 831 and the recess 832 in the central hole 83 of the flange 8, respectively. In this way, when the flange 8 rotates, the second sliding bearing 12 can be brought into rotation. The second support member 12 may include a generally cylindrical sleeve body and a bearing housing interference fit within the sleeve body.
The bearings (e.g., bearings or bushings or washers) may also include a first thrust bearing 15, a second thrust bearing 14 and a third thrust bearing 16. The first thrust bearing 15 is located between the inner step face 84 of the flange 8 and the outer step face 95 of the crankshaft 9. Second thrust bearing 14 is positioned between the lower surface of second scroll 6 and the upper surface 811 of tray 81 of flange 8. The third thrust bearing 16 is located between the underside of the flange 8 and the junction of the hub 41 and the support arm 42 of the carrier 4.
One or more of the first, second and third thrust bearings 15, 14, 16 may be configured in the form of a thrust washer or thrust bearing. Taking the first thrust bearing 15 as an example, as shown in fig. 1B, the first thrust bearing 15 is configured in the form of a thrust washer. A plurality of oil grooves 151, which are offset from each other, are provided on the upper and lower surfaces of the first thrust bearing 15 for accumulating lubricating oil to form an oil film on the surface of the friction pair. The sump 151 shown in FIG. 1B is generally rectangular in shape, it being understood that the sump 151 may also be circular or other suitable shape. The construction of the other thrust bearings 14 and 16 may be similar to that of the first thrust bearing. In addition, the material of which the thrust bearing is constructed may be a wear resistant metal or non-metal material.
The hub 61 of the second scroll 6 has an inner bore 610 (see fig. 3), the inner shape of the inner bore 610 and the outer shape of the upper end 101 of the upper oil screw 10 matching each other, allowing the upper end 101 of the upper oil screw 10 to fit into the inner bore 610. Specifically, the outer circumferential surface of the upper end 101 of the upper oil screw 10 may be interference-fitted with the inner circumferential surface of the inner bore 610 of the hub 61 of the second scroll 6 to prevent the upper oil screw 10 from rotating relative to the second scroll 6.
Alternatively, as shown in fig. 1B, the outer circumferential surface of the upper end 101 of the upper oil screw 10 includes a first plane 1011, and correspondingly, the inner circumferential surface of the inner bore 610 of the hub 61 of the second scroll 6 includes a second plane 611 (see fig. 3). When the upper end 101 of the upper oil screw 10 is fitted into the inner bore 610 of the hub 61 of the second scroll 6, the first plane 1011 and the second plane 611 abut against each other to prevent the upper oil screw 10 from rotating relative to the second scroll 6.
Further, a stopper 102 is provided on the outer peripheral surface of the upper end 101 of the upper oil screw 10. As shown in fig. 3, a retainer groove 612 is provided on an inner peripheral surface of the inner hole 610 of the hub 61 of the second scroll 6 and the retainer ring 20 is provided in the retainer groove 612. When the upper end 101 of the upper oil screw 10 is fitted into the inner bore 610 of the hub 61 of the second scroll 6, the stopper 102 is fitted into the retainer groove 612, and the retainer ring 20 can catch the stopper 102 from below to prevent the upper end 101 of the upper oil screw 10 from coming out of the inner bore 610 of the hub 61 of the second scroll 6.
The scroll compressor according to the present invention further comprises a protective sleeve 17. As shown in fig. 1A, the wall 171 of the protective sleeve 17 is positioned between the suction port 2001 and the scroll assembly to avoid fluid (e.g., refrigerant) from directly impacting the scroll assembly to damage the scroll assembly when the scroll compressor draws in the fluid. As shown in fig. 1B, the protection sleeve 17 has a generally cylindrical thin-walled configuration with a cylindrical wall 171 and a lower flange 172. A plurality of screw holes (or through holes) 173 are provided on the lower flange 172. These threaded holes 173 correspond to a plurality of threaded holes 712 in a stator support ring 711 of the stator 71, and the protective sleeve 17 and the stator 71 can be fixed to the bracket 4 with a plurality of screws 18.
As shown in fig. 1A, a radial through hole 90 is provided in the crankshaft 9. One end of the radial through hole 90 opens on the outer peripheral surface of the crankshaft 9, and the other end of the radial through hole 90 opens on the inner peripheral surface of the axial through hole 91 of the crankshaft 9. In addition, another radial through hole or holes 98 are provided in the crankshaft 9. One end opening of the radial through hole 98 is located on the outer peripheral surface of the crankshaft 9, and the other end opening of the radial through hole 98 communicates with the oil return passage 99. As will be described hereinafter, the radial through hole 90 is used to convey lubricating oil from the oil sump 31 to the components to be lubricated of the scroll compressor; the radial through hole 98 is used for oil return and may communicate with oil return passages 99 and 100.
Fluid path of scroll compressor
Next, a fluid path inside the scroll compressor according to the present invention will be described with reference to fig. 2. FIG. 2 is a schematic illustration of the suction path, discharge path, and lubrication path of the scroll compressor shown in FIG. 1A. As shown in fig. 2, mainly two suction paths XQ1, XQ2, four lubrication paths RH1, RH2, RH3, RH4, and two oil return paths HY1, HY2 are shown. It should be understood that the fluid paths within the scroll compressor according to the present invention described below are illustrative only, and not limiting or exhaustive. In practical applications, more or fewer fluid paths may be provided.
Specifically, along the suction path XQ1, the refrigerant enters the middle shell 2 of the scroll compressor through the suction port 2001, flows upward by being blocked by the cylinder wall 171 of the protective sleeve 17, then flows downward through the gap between the cylinder wall 171 and the scroll assembly (specifically, the first scroll 5), and then enters the compression chamber 56 through the fluid passages provided in the tray 81 of the flange 8 and the first scroll 5.
Along the suction path XQ2, the refrigerant enters the middle shell 2 of the scroll compressor via the suction port 2001, flows downward being blocked by the cylinder wall 171 of the protective sleeve 17, then passes through the gap between the stator 71 and the rotor 72 of the actuator 7 (see fig. 4, gap 720) and the gap between the center hole of the stator 71 and the outer circumferential surface of the flange 8, and then enters the compression chamber 56 via the fluid passages provided in the tray 81 and the scroll assembly of the flange 8.
Along the lubrication path RH1, the lubricating oil initially stored in the oil sump 31 rises to the second sliding bearing 12 as the upper oil screw 10 rotates, and then reaches the first thrust bearing 15. A part of the lubricating oil flows down into the oil return passage 99 via the oil return hole 97 and further into the oil return passage 100; another part of the lubricating oil flows down to the radial through hole 98 along the clearance on both sides of the second sliding bearing 12 and the clearance on both sides of the first sliding bearing 11, and then enters the oil return passage 99 via the radial through hole 98 and further enters the oil return passage 100. The lubrication oil in the oil return passage 100 eventually flows back to the oil pool 31. Thus, the oil return path HY1 is formed.
Along the lubrication path RH2, the lubricating oil initially stored in the oil sump 31 rises to the second thrust bearing 14 as the upper oiling screw 10 rotates, then flows through the second thrust bearing 14 into the fluid passages provided in the tray 81 and scroll assembly of the flange 8, and finally enters the compression chamber 56 along with the refrigerant.
The fluid in the compression chamber 56, after being compressed, flows into the discharge chamber 1002 through the center hole 52 at the top of the first scroll 5 and the center hole 2002 at the top of the middle shell 2, and is then discharged to the outside of the scroll compressor through the discharge port 1001, thereby forming a discharge path PQ.
Further, along the lubrication path RH2, the lubricating oil initially stored in the oil sump 31 rises to the radial through holes 90 as the oiling screw 10 rotates. Flows to the third sliding bearing 13 via the radial through hole 90. A portion of the lubrication oil then flows up to the first thrust bearing 15, thereby forming lubrication path RH3, and another portion of the lubrication oil flows down to the third thrust bearing 16, thereby forming lubrication path RH 4.
The lubricating oil after lubricating the third thrust bearing 16 and the lubricating oil flowing down from above can flow on the bottom surface where the supporting arm 42 and the hub 41 are connected, and finally flow back to the oil sump 31 through the oil leakage holes 44 in the bracket 4. Thus, the oil return path HY2 is formed.
[ basic Structure of actuator mechanism ]
The basic configuration of the actuating mechanism 7 is described above in connection with fig. 1A and 1B. The basic construction of the actuating mechanism 7 is described in more detail next with further reference to fig. 4.
FIG. 4 is a longitudinal cross-sectional view of a portion of a scroll compressor according to an exemplary embodiment of the present invention. Fig. 4 mainly shows the basic configuration of an actuation mechanism 7 (for example, a disk motor belonging to the class of axial flux motors).
As shown in fig. 1A, 1B and 4, the stator 71 has an outer periphery (hereinafter also referred to as a stator support ring) 711, a stator frame 710, a stator yoke 713, stator teeth 714, and a plurality of windings 717 wound around the stator teeth. The stator yoke 713 and the stator teeth 714 are actually two different parts of the same component, and as shown in fig. 4, the part of the component that is intended for winding with the winding 717 (the lower part of the component in fig. 1A, 1B, and 4) is called a stator tooth, while the part that is not intended for winding with the winding (the upper part of the component in fig. 1A, 1B, and 4) is called a stator yoke. The stator yoke 713 is fixedly coupled to the stator support ring 711.
The stator support ring 711 may have an interference fit with the compressor housing. In addition, a plurality of screw holes (or through holes) 712 are provided on the stator support ring 711, while screw holes 43 are provided on the outer edge of the bracket 4 (i.e., the top of the support arm 42). The screw holes 712 correspond one-to-one to the screw holes 43, so that the stator 71 can be fixed to the bracket 4 using a plurality of screws 18.
The stator 71 may further include a bobbin 716. A bobbin 716 is fitted over the stator teeth 714 and then a winding 717 is wound around the bobbin 716. After the bobbin 716 is fitted over the stator teeth 714, tooth shoes (not shown) may be further provided on the bottom surface of the stator teeth 714. The tooth shoes are made of soft magnetic material and are mounted on the end faces (i.e., bottom faces) 715 of the stator teeth 714 facing the rotor 72. The area of the tooth shoes is larger than the area of the bottom surfaces 715 of the stator teeth 714 to limit vertical movement of the windings 717 and the bobbin 716. Further, the tooth shoes can increase the area receiving the magnetic field of the rotor 72 by using magnetically conductive soft magnetic material.
It should be understood that the bobbin 716 is not required and that the winding 717 may be wound directly on the stator teeth 714. Alternatively, the tooth shoes may be formed integrally with the stator teeth 714 and machined therewith.
The windings 717 may be secured with resin and/or an insulating varnish 718, and the windings 717, the bobbin 716, the stator teeth 714, and the stator yoke 713 may be encapsulated with resin. For example, the fixing and/or encapsulation may be performed using an insulating varnish 718, which facilitates better cooling of the winding 717 by the refrigerant.
As can be seen from fig. 1A and 4, the rotor 72 is located below the stator 71. The stator 71 and the rotor 72 are thus arranged for the following reasons:
in the scroll compressor of the exemplary embodiment of the present invention, the gas forces are largely balanced by the compression pockets 56. However, the downward gas force (i.e., the reverse thrust) generated by the gas discharging from the center hole 2002 at the top of the middle housing 2 to the discharge chamber 1002 is not balanced. As a result, this gas force pushes down on the second scroll 6 and thus the flange 8, and is then transferred to the rotor 72 and acts on the mount 4.
In the arrangement in which the rotor 72 is located below the stator 71 as in the exemplary embodiment of the present invention, the stator 71 has an upward electromagnetic force on the rotor 72, and the rotor is fixedly connected to the flange 8. Therefore, the upward electromagnetic force of the stator 71 against the rotor 72 can cancel/balance the downward thrust force generated by the above-described gas force and transmitted to the rotor 72. In this way, the stress on the bracket 4 can be reduced, protecting the bearing, in particular the third thrust bearing 16. The gas force under different working conditions is different in magnitude, so that when the electromagnetic force is designed, the electromagnetic force can be larger than the gas force under any working condition, the balance of just 1: 1 can also be considered, or the electromagnetic force can also be smaller than the gas force, which mainly depends on the design of the supporting part and the magnitude of the force capable of bearing the supporting part.
[ construction of stator ]
The configuration of the stator 71 is further described next. Fig. 5A, 5B, 5C, and 5D are a perspective view, a side view, a top view, and a sectional view taken along a plane C-C in fig. 5B, respectively, of a stator of a disc motor according to an exemplary embodiment of the present invention.
The basic configuration of the stator 71 has been described hereinbefore with reference to fig. 1A, 1B, and 4, and will not be described in detail here. In the cross-sectional view of the stator 71 shown in fig. 5D, a plurality of windings 717 evenly arranged around the center of the stator 71 are shown, along with a corresponding bobbin 716, stator teeth 714 and an insulating varnish 718 for encapsulating these components.
[ construction of rotors ]
The configuration of the rotor 72 is further described next. Fig. 6A, 6B, 6C, and 6D are a perspective view, a side view, a top view, and a sectional view taken along a plane D-D in fig. 6B, respectively, of a rotor of a disc motor according to an exemplary embodiment of the present invention.
The basic configuration of the rotor 72 has been described hereinbefore with reference to fig. 1A, 1B, and 4, and will not be described again. In the sectional view of the rotor 72 shown in fig. 6D, a plurality of permanent magnets 723 that are uniformly arranged around the rotation center of the rotor 72 and a rotor yoke 725 embedded between the permanent magnets 723 and the rotor hub 721 are shown, and the portion between the adjacent permanent magnets 723 is encapsulated resin 724.
[ Structure of Heat-dissipating ribs ]
Fig. 7A and 7B are a top view and a side view, respectively, of a modification of the stator shown in fig. 5A. As shown in fig. 7A and 7B, in order to improve heat dissipation of the stator 71, a plurality of (4 in fig. 7A) heat dissipation ribs 719 are provided on an outer surface (an upper surface in fig. 7A) of the stator 71. As shown in fig. 7A, the heat dissipation ribs 719 are uniformly distributed at equal central angular intervals. In addition, the heat dissipation ribs 719 may be a separately manufactured component from the stator 71 and then assembled to the stator 71. Alternatively, the heat dissipation ribs 719 may be a member integrally molded with the outer surface of the stator 71.
Fig. 8A and 8B are a top view and a side view, respectively, of another modification of the stator shown in fig. 5A. As shown in fig. 8A and 8B, a plurality of (4 in fig. 8A) heat dissipating ribs 719' are provided on an outer surface (an upper surface in fig. 8A) of the stator 71. The number and distribution of the heat dissipating ribs 719' are similar to those in fig. 7A and 7B, except that: as shown in fig. 8A and 8B, the heat dissipation ribs 719 are entirely located on the upper surface of the stator 71, and the radially outer ends of the heat dissipation ribs 719 do not extend to the stator support ring 711; as shown in fig. 8A and 8B, the radially outer ends of the heat dissipation ribs 719 'extend to the stator support ring 711 and are connected to the stator support ring 711, but the heat dissipation ribs 719' are separate components, i.e., separately made components, with respect to the stator support ring 711.
Fig. 9A and 9B are a top view and a side view, respectively, of another modification of the stator shown in fig. 5A. As shown in fig. 9A and 9B, a plurality of (4 in fig. 9A) heat dissipation ribs 719 ″ are provided on an outer surface (upper surface in fig. 9A) of the stator 71. The number and distribution of the heat dissipating ribs 719 ″ are similar to those in fig. 7A and 7B, except that: the heat dissipation ribs 719 ″ are members integrally molded with the stator support ring 711.
[ VARIATION OF VORTEX COMPRESSOR ]
Fig. 10 shows a longitudinal sectional view of a scroll compressor according to another exemplary embodiment of the present invention.
The primary difference between the scroll compressor of the exemplary embodiment shown in FIG. 10 and the scroll compressor of the exemplary embodiment shown in FIG. 1A is the actuation mechanism. In the scroll compressor of the exemplary embodiment shown in fig. 10, the actuating mechanism 7' is a radial flux motor. The radial flux motor includes a stator 71 'and a rotor 72'. The stator 71 ' includes a stator support ring 711 ' and a plurality of stator teeth 714 '. A respective winding 717 'is wound around the outer periphery of each stator tooth 714'. The rotor 72 'is disposed radially inward of the stator 71'. The rotor 72 ' includes a plurality of permanent magnets 722 ' and a rotor hub 721 '. The stator support ring 711 'of the stator 71' and the rotor hub 721 'of the rotor 72' are constructed and connected in a similar manner to the corresponding construction and connection of the axial flux motor described above: the permanent magnet 722 'is fixed to the rotor hub 721', the inner peripheral surface of the rotor hub 721 'is fixedly fitted (e.g., interference fit or spline fit) to the outer peripheral surface of the flange 8, and the stator 71' is fixed to the carrier 4. The radial flux motor has a rotational speed in the range of 0 to 40000 rpm.
Although the technical objects, technical solutions and technical effects of the present invention have been described in detail hereinabove with reference to specific embodiments and modifications, it should be understood that the above embodiments and modifications are merely illustrative and not restrictive. Any modification, equivalent replacement, or improvement made by those skilled in the art within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (17)
1. A scroll compressor, comprising:
a compressor housing (1, 2, 3);
a bracket (4) mounted within the compressor housing;
a scroll assembly, the scroll assembly comprising:
a first scroll (5) located within the compressor housing; and
a second scroll (6) located within the compressor housing and co-rotating with the first scroll to define a compression chamber (56) therebetween;
a flange (8) rotatably supported on the bracket and supporting the first scroll and the second scroll, wherein the flange is connected to the first scroll; and
an actuating mechanism (7) mounted within the compressor housing and connected to the flange to drive rotation of the flange, the first scroll driving the second scroll for common rotation, wherein the actuating mechanism comprises an axial flux motor.
2. The scroll compressor of claim 1, wherein the axial flux motor is a disc motor.
3. A scroll compressor according to claim 1 or 2, wherein the axial flux motor comprises a stator (71) fixed to the bracket and a rotor (72) connected to the flange for driving the flange in rotation.
4. The scroll compressor of claim 3, wherein the rotor is located below the stator.
5. The scroll compressor of claim 4, wherein the axial flux motor has a speed in the range of 0 to 40000 rpm.
6. The scroll compressor of claim 4, wherein the rotor is connected with the flange in an interference manner, and the stator and the bracket are connected by a screw (18).
7. The scroll compressor of claim 4, wherein the stator includes a stator yoke (713), a stator tooth (714), a stator support ring (711), and a winding (717) wound on the stator tooth.
8. The scroll compressor of claim 7, wherein the stator further includes a bobbin (716) that fits over the stator teeth, the windings being wound on the bobbin.
9. The compressor of claim 7, wherein the stator yoke is fixedly connected to the stator support ring, the stator support ring having an interference fit with the compressor housing.
10. The compressor of claim 7, wherein the stator is received in the bracket, threaded holes are provided in the outer edge of the bracket and the stator support ring, and the bracket and the stator support ring (711) are fixedly connected by a screw (18).
11. Compressor according to claim 3, characterized in that one or more heat dissipating ribs (719) are provided on the outer surface of the stator,
the heat dissipating ribs are members that are made separately from the stator, or are integrally molded with the stator.
12. The compressor of claim 4, wherein the rotor includes a permanent magnet (723), a rotor yoke (725) and a rotor hub (721), the permanent magnet is supported and fixed by the rotor yoke, and the rotor hub is connected with the flange in an interference manner.
13. A scroll compressor, comprising:
a compressor housing (1, 2, 3);
a bracket (4) mounted within the compressor housing;
a scroll assembly, the scroll assembly comprising:
a first scroll (5) located within the compressor housing; and
a second scroll (6) located within the compressor housing and co-rotating with the first scroll to define a compression chamber (56) therebetween;
a flange (8) rotatably supported on the bracket and supporting the first scroll and the second scroll, wherein the flange is connected to the first scroll; and
an actuating mechanism (7) mounted within the compressor housing and connected to the flange to drive rotation of the flange, the first scroll driving the second scroll for common rotation, wherein the actuating mechanism comprises a radial flux motor.
14. The scroll compressor of claim 13, wherein the radial flux motor has a speed in a range of 0 to 40000 rpm.
15. The scroll compressor of claim 13, wherein the radial flux motor includes a stator (71 ') and a rotor (72'), the rotor being disposed radially inward of the stator, the stator being fixed to the bracket, the rotor being connected to the flange to drive the flange in rotation.
16. The scroll compressor of claim 15, wherein the rotor is connected with the flange in an interference manner, and the stator is fixed to the bracket.
17. The scroll compressor of claim 15, wherein the stator includes a stator support ring (711 ') and a plurality of stator teeth (714 ') with a respective winding (717 ') wound around an outer periphery of each stator tooth.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123449502.7U CN217002271U (en) | 2021-12-31 | 2021-12-31 | Scroll compressor having a plurality of scroll members |
| PCT/CN2022/143402 WO2023125811A1 (en) | 2021-12-31 | 2022-12-29 | Scroll compressor |
| DE112022006266.5T DE112022006266T5 (en) | 2021-12-31 | 2022-12-29 | SCROLL COMPRESSOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123449502.7U CN217002271U (en) | 2021-12-31 | 2021-12-31 | Scroll compressor having a plurality of scroll members |
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| Publication Number | Publication Date |
|---|---|
| CN217002271U true CN217002271U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123449502.7U Active CN217002271U (en) | 2021-12-31 | 2021-12-31 | Scroll compressor having a plurality of scroll members |
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| Country | Link |
|---|---|
| CN (1) | CN217002271U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125811A1 (en) * | 2021-12-31 | 2023-07-06 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024022504A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Driving member for scroll compressor and scroll compressor |
| WO2024022503A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Compressor and method for assembling compressor |
| WO2024022505A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021947A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll plate cover and scroll compressor |
| WO2024022476A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021948A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021946A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Sealing ring and scroll compressor |
| WO2024022493A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll for scroll compressor and scroll compressor |
| WO2024022477A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Compressor |
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2021
- 2021-12-31 CN CN202123449502.7U patent/CN217002271U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125811A1 (en) * | 2021-12-31 | 2023-07-06 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024022504A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Driving member for scroll compressor and scroll compressor |
| WO2024022503A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Compressor and method for assembling compressor |
| WO2024022505A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021947A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll plate cover and scroll compressor |
| WO2024022476A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021948A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll compressor |
| WO2024021946A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Sealing ring and scroll compressor |
| WO2024022493A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Scroll for scroll compressor and scroll compressor |
| WO2024022477A1 (en) * | 2022-07-29 | 2024-02-01 | 丹佛斯（天津）有限公司 | Compressor |
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