A vortex mechanism

Abstract

The present invention relates to the technical field of vortex fluid machinery, and discloses a vortex mechanism. The vortex mechanism comprises: a frame; a static disk fixed to the frame, and a control magnet is arranged around the frame and / or the static disk; a moving disk assembly, the moving disk assembly is located between the frame and the static disk, and a controlled magnet is arranged around the moving disk assembly; a control circuit, which is used to control the magnetic force between at least part of the control magnet and the controlled magnet, so that the moving disk assembly is in a predetermined posture. In the above manner, the present invention can reduce mechanical friction and collision, and allow the vortex mechanism to design vortex teeth with larger tooth height and more turns, thereby improving the working efficiency of the vortex mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of vortex fluid machinery, in particular to a vortex mechanism. Background Art

[0002] As energy storage and power equipment, scroll fluid machinery is widely used in various fields of society. It is one of the core equipment of refrigeration, gas separation and defense industry. Among them, scroll compressors, scroll expanders, scroll liquid pumps, etc. are the most common types of scroll fluid machinery.

[0003] The main components of the scroll fluid machinery include the frame, main shaft, eccentric small shaft (or cross slip ring, etc.), moving plate, and fixed plate. The scroll tooth profiles on the moving plate and the fixed plate are involutes or combined profiles of basic figures (such as circles, straight lines, polygons, etc.). The moving scroll teeth and the static scroll teeth mesh to form a cavity, in which the fluid moves with the moving plate.

[0004] In the current scroll fluid machinery, due to the axial force and overturning moment applied to the moving plate by the fluid in the chamber, the mechanical friction between the moving plate and the fixed plate and the frame is serious, and the moving plate is prone to tilt and collide with the fixed plate and the frame. At the same time, it also limits the design of the scroll teeth towards a larger tooth height and more turns. The above reasons make the current scroll fluid machinery have a low working efficiency. Summary of the invention

[0005] In view of this, the main technical problem solved by the present invention is to provide a scroll mechanism that can reduce mechanical friction and collision and allow the scroll mechanism to be designed with scroll teeth with larger tooth height and more turns, thereby improving the working efficiency of the scroll mechanism.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a vortex mechanism, which includes: a frame; a static plate, which is fixed to the frame, and a control magnet is arranged around the frame and / or the static plate; a moving plate assembly, which is located between the frame and the static plate, and a controlled magnet is arranged around the moving plate assembly; a control circuit, which is used to control the magnetic force between at least part of the control magnet and the controlled magnet, so that the moving plate assembly is in a predetermined posture.

[0007] The beneficial effects of the present invention are as follows: Different from the prior art, the present invention provides a scroll mechanism. The scroll mechanism controls the magnetic force between at least part of the control magnet and the controlled magnet through a control circuit, and the magnetic force balances the axial force and overturning moment on the moving disk assembly, so that the moving disk assembly is in a predetermined posture, thereby greatly reducing the mechanical friction caused by the axial force on the moving disk assembly, and preventing the moving disk assembly from tilting as much as possible, which can reduce the collision between the moving disk assembly and the static disk and the frame caused by the tilt of the moving disk assembly, and allow the volume of the fluid chamber of the scroll mechanism to be increased by increasing the height of the scroll teeth and the number of turns, thereby achieving the purpose of stepless volume change and improving the working efficiency of the scroll mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the scroll mechanism of the first embodiment of the present invention;

[0009] Figure 2 It is a structural schematic diagram of a scroll mechanism adjusting movable plate assembly according to a first embodiment of the present invention;

[0010] Figure 3 is a schematic structural diagram of a scroll mechanism according to a second embodiment of the present invention;

[0011] Figure 4 is a schematic diagram of the distribution of the second control magnets on the frame according to the second embodiment of the present invention;

[0012] Figure 5 is a schematic diagram of the back side of a frame according to a second embodiment of the present invention;

[0013] Figure 6 is a schematic diagram of the static disk structure of the second embodiment of the present invention;

[0014] Figure 7 is a schematic diagram of the distribution of the second control magnets on the frame according to the third embodiment of the present invention;

[0015] Figure 8 is a schematic diagram of the distribution of the first control magnets on the stator disk according to the third embodiment of the present invention;

[0016] Fig. 9 is a schematic structural diagram of a silicon steel sheet according to a third embodiment of the present invention;

[0017] Fig.10 is a schematic structural diagram of another silicon steel sheet according to a third embodiment of the present invention;

[0018] Fig.11 is a structural schematic diagram of a pressing plate according to a third embodiment of the present invention;

[0019] Fig.12 is a schematic structural diagram of another pressing plate according to a third embodiment of the present invention;

[0020] Fig.13 It is a structural schematic diagram of an electromagnetic magnetic circuit between the first electromagnet, the second electromagnet and the controlled magnet in the third embodiment of the present invention;

[0021] Fig.14 is a schematic structural diagram of another electromagnetic magnetic circuit between the first electromagnet, the second electromagnet and the controlled magnet in the third embodiment of the present invention;

[0022] Fig.15 is a structural schematic diagram of a permanent magnet block according to a third embodiment of the present invention;

[0023] Fig.16 It is a structural schematic diagram of a magnetic circuit between the first permanent magnet, the second permanent magnet and the controlled magnet in the third embodiment of the present invention;

[0024] Fig.17 is a schematic diagram of the back side of a static disk according to a third embodiment of the present invention;

[0025] Fig.18 is a schematic structural diagram of a scroll mechanism according to a fourth embodiment of the present invention;

[0026] Fig.19 Schematic diagram of the arrangement of the Halbach arrays of the inner and outer rings of the permanent magnet bearing according to the fourth embodiment of the present invention;

[0027] Fig. 20 is a schematic structural diagram of an eccentric main shaft according to a fourth embodiment of the present invention;

[0028] Fig.21 is an enlarged schematic diagram of a part A on the scroll mechanism of the fourth embodiment of the present invention;

[0029] Fig. 22 is a schematic structural diagram of an eccentric small shaft according to a fourth embodiment of the present invention;

[0030] Fig.23 is a structural schematic diagram of a moving disk assembly according to a fourth embodiment of the present invention;

[0031] Fig.24 is a schematic diagram of the back structure of a moving disk assembly according to a fourth embodiment of the present invention;

[0032] Fig.25 is a schematic diagram of the distribution of the second bearing holes on the moving plate assembly according to the fourth embodiment of the present invention;

[0033] Fig.26 is a schematic structural diagram of a scroll mechanism according to a fifth embodiment of the present invention;

[0034] Fig. 27is a structural schematic diagram of a moving disk assembly according to a fifth embodiment of the present invention;

[0035] Fig.28 is a schematic structural diagram of a moving disk according to a fifth embodiment of the present invention;

[0036] Fig.29 is a schematic structural diagram of a controlled magnet silicon steel sheet according to a fifth embodiment of the present invention;

[0037] Fig.30 is a schematic structural diagram of a controlled magnet pressure plate according to a fifth embodiment of the present invention;

[0038] Fig.31 is a schematic structural diagram of a tray according to a fifth embodiment of the present invention;

[0039] Fig.32 It is a schematic diagram of the distribution of the second bearing holes on the moving plate assembly of the fifth embodiment of the present invention. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] In order to solve the technical problems of the mechanical friction and serious collision of the moving disk of the scroll mechanism in the prior art, as well as the limited design of the scroll tooth height and the number of turns, an embodiment of the present invention provides a scroll mechanism. The scroll mechanism includes: a frame; a static disk, which is fixed to the frame, and a control magnet is arranged around the frame and / or the static disk; a moving disk assembly, which is located between the frame and the static disk, and a controlled magnet is arranged around the moving disk assembly; a control circuit, which is used to control the magnetic force between at least part of the control magnet and the controlled magnet, so that the moving disk assembly is in a predetermined posture. This is explained in detail below.

[0042] See also Figure 1 , Figure 1 It is a structural schematic diagram of the first embodiment of the scroll mechanism of the present invention. It should be noted that the scroll mechanism provided by the present invention can be applied to scroll fluid machinery such as scroll compressors, scroll expanders and scroll liquid pumps. The specific internal structures of the three are the same, and the difference is only in the working principle. The following embodiments are described by taking the specific application form of the scroll mechanism as a scroll compressor as an example, and do not limit the specific application form of the scroll mechanism of the present invention.

[0043] In one embodiment, the scroll mechanism includes a frame and a stator plate fixed to the frame, and a control magnet is disposed around the frame and / or the stator plate. That is, the control magnet can be disposed only on the frame, or the control magnet can be disposed only on the stator plate, or the control magnet can be disposed on both the frame and the stator plate. Figure 1The scroll mechanism shown is explained by taking the example that both the frame and the stator disk are provided with control magnets, which is only for the purpose of discussion and does not limit the arrangement method of the control magnets of the present invention.

[0044] like Figure 1 As shown, the scroll mechanism includes:

[0045] The frame 11 is provided with a second control magnet 12 around its periphery.

[0046] The second control magnet 12 may be at least one of an electromagnet, a permanent magnet or other types of magnets. It is understandable that a ring-shaped second control magnet 12 may be mounted on the frame 11, or one or more block-shaped second control magnets 12 may be mounted on the frame 11. A plurality of second control magnets 12 may be evenly arranged around the frame 11. The second control magnet 12 may be fixedly arranged on the frame 11 by threaded connection, welding, riveting or bonding.

[0047] The stator plate 110 is fixed to the frame 11 and is provided with a first control magnet 16 around its periphery.

[0048] Among them, the stator disk 110 can be fixed to the frame 11 by threaded connection or welding, riveting, or bonding. It can be understood that a first control magnet mounting groove or a first control magnet mounting through hole can be provided on the side of the stator disk 110 facing the frame 11, and the first control magnet 16 can be fixed in the first control magnet mounting groove or the first control magnet mounting through hole by bolt connection, riveting, or other fixed connection methods. The first control magnet 16 can be at least one of an electromagnet, a permanent magnet, or other types of magnets. In addition, it can be an annular first control magnet 16 mounted on the stator disk 110, or it can be one or more block-shaped first control magnets 16 mounted on the stator disk 110. Multiple first control magnets 16 can be evenly arranged around the stator disk 110.

[0049] The moving plate assembly 13 is located between the frame 11 and the stationary plate 110, and is surrounded by controlled magnets 17.

[0050] The moving disc assembly 13 is arranged in a cavity in the assembly formed by the stationary disc 110 and the frame 11. A moving scroll 19 is arranged on the moving disc assembly 13, and a stationary scroll 18 is arranged on the stationary disc 110. The moving scroll 19 and the stationary scroll 18 cooperate to form a compression chamber for accommodating and compressing gas.

[0051] The eccentric main shaft 14 includes a main shaft section and an eccentric shaft section. The main shaft section of the eccentric main shaft 14 is assembled on the frame 11 and can rotate around its axial direction on the frame 11. A first bearing hole 15 is provided on the side of the moving plate assembly 13 away from the static plate 110, and the eccentric shaft section of the eccentric main shaft is embedded in the first bearing hole 15.

[0052] The eccentric main shaft 14 can drive the moving disk assembly 13 to move, so that the moving scroll gear 19 and the stationary scroll gear 18 cooperate with each other to continuously compress the gas in the compression chamber formed by the moving disk assembly 13 and the stationary disk 110. The second control magnet 12 on the frame 11 and the first control magnet 16 at the corresponding position on the stationary disk 110 apply a force to the controlled magnet 17, so that the axial position of the moving disk assembly 13 is fixed or changed.

[0053] The control circuit is used to control the magnetic force between at least part of the control magnets (including the second control magnet 12 and the first control magnet 16) and the controlled magnet 17 so that the moving disk assembly is in a predetermined posture.

[0054] The magnetic field strength between the second control magnet 12, the first control magnet 16 and the controlled magnet 17 can be adjusted by the control circuit, so that the magnetic force of the controlled magnet 17 applied by the second control magnet 12 and the first control magnet 16 to the movable disk assembly 13 is changed, so that the movable disk assembly 13 moves toward the second control magnet 12 or the first control magnet 16, that is, the movable disk assembly 13 moves axially along the eccentric main shaft 14, changing the axial position of the movable disk assembly 13. The axial direction of the vortex mechanism is parallel to the first direction, and the axial direction of the eccentric main shaft 14 defines the axial direction of the vortex mechanism, so the axial direction of the eccentric main shaft 14 is parallel to the first direction.

[0055] The movable disk assembly 13 is subjected to axial force and overturning moment. When the movable disk assembly 13 tilts, the control circuit adjusts the electromagnetic force of the second control magnet 12 of the frame 11 and the first control magnet 16 of the static disk 110 on the controlled magnet 17 according to the change of the axial position of each part on the movable disk assembly 13, so that the movable disk assembly 13 is in a predetermined posture, that is, the movable disk assembly 13 is suspended between the frame 11 and the static disk 110, the movable disk assembly 13 is not in contact with the frame 11 and the static disk 110, and the movable disk assembly 13 is in a balanced state, and its posture remains unchanged. It can be understood that the movable disk assembly 13 in the predetermined posture can still have a certain degree of tilt, that is, there is a certain angle between the axis of the movable disk assembly 13 and the axis of the static disk 110. Of course, when the movable disk assembly 13 does not tilt, the axis of the movable disk assembly 13 is parallel to the axis of the static disk 110, and both are parallel to the first direction.

[0056] Specifically, Figure 2As shown, when the A of the moving disk assembly 13 tilts toward the static disk 110, in order to balance the overturning moment and axial force exerted on the moving disk assembly 13 and to restore the tilted moving disk assembly 13 to a balanced state and no longer tilt, the A on the moving disk assembly 13 can be restored to its original position (wherein the original position of A refers to the position of A when the moving disk assembly 13 is not tilted) by at least one of increasing the force exerted by the second control magnet 12 at A" on the frame 11 on the controlled magnet 17 and reducing the force exerted by the first control magnet 16 at A' on the static disk 110 on the controlled magnet 17.

[0057] When point B of the moving disk assembly 13 tilts toward the frame 11, point B on the moving disk assembly 13 can be restored to its original position by at least one of reducing the force exerted by the second control magnet 12 at point B" on the frame 11 on the controlled magnet 17 and increasing the force exerted by the first control magnet 16 at point B' on the static disk 110 on the controlled magnet 17, thereby restoring the moving disk assembly 13 to its original position and no longer tilting, thereby adjusting the tilting posture of the moving disk assembly 13.

[0058] In other words, when one side of the moving disk assembly 13 tilts toward the stationary disk 110, the side of the moving disk assembly 13 tilted toward the stationary disk 110 is restored to its original position by at least one of increasing the magnetic field strength of the second control magnet 12 on the frame 11 at the corresponding position controlled by the control circuit and decreasing the magnetic field strength of the first control magnet 16 on the stationary disk 110 at the corresponding position controlled by the control circuit. When one side of the moving disk assembly 13 tilts toward the frame 11, the side of the moving disk assembly 13 tilted toward the frame 11 is restored to its original position by at least one of decreasing the magnetic field strength of the second control magnet 12 on the frame 11 at the corresponding position controlled by the control circuit and increasing the magnetic field strength of the first control magnet 16 on the stationary disk 110 at the corresponding position controlled by the control circuit. At this time, the magnetic field strength of the second control magnet 12 around the frame 11 may be inconsistent, and the magnetic field strength of the first control magnet 16 around the stationary disk 110 may be inconsistent.

[0059] It can be seen that when the moving disk assembly 13 tilts, the magnetic field strength of the second control magnet 12 on the frame 11 and the magnetic field strength of the first control magnet 16 on the static disk 110 are adjusted by the control circuit to restore the moving disk assembly 13 to a predetermined posture. At the same time, the axial force of the moving disk assembly 13 is balanced. In this way, even if the tooth height and the number of turns of the moving scroll gear 19 and the static scroll gear 18 are increased, it is still not easy to collide, so that the maximum volume of the scroll mechanism of the present invention can be greatly improved compared with the existing scroll mechanism by increasing the tooth height and the number of turns of the scroll gear.

[0060] It can be understood that, in the case where the control magnet is only provided on the frame 11, or the control magnet is only provided on the static disk 110, when the moving disk assembly 13 is tilted, by allowing the control circuit to control the magnetic field strength of the second control magnet 12 at the corresponding position on the frame 11, or allowing the control circuit to control the magnetic field strength of the first control magnet 16 at the corresponding position on the static disk 110, the side of the moving disk assembly 13 tilted toward the frame 11 or the static disk 110 is restored to its original position.

[0061] like Figure 2 As shown, the first control magnet 16 at A' and the second control magnet 12 at A" can be regarded as a pair of magnets, and the first control magnet 16 at B' and the second control magnet 12 at B" can be regarded as a pair of magnets, that is, a single second control magnet 12 on the frame 11 and a single first control magnet 16 at a position corresponding to the second control magnet 12 on the stator 110 constitute a pair of magnets.

[0062] The control circuit is used to dynamically adjust the magnetic field strength between the second control magnet 12, the first control magnet 16 and the controlled magnet 17, so that the position of the moving disk assembly 13 reaches axial balance during the normal operation of the moving disk assembly 13, and the moving disk assembly 13 is in a predetermined posture. Even if the moving disk assembly 13 is tilted, the control circuit can be used to adjust the magnetic field strength of the second control magnet 12 in a certain area around the frame 11 and / or the first control magnet 16 in a certain area around the static disk 110 to control the spatial posture of the moving disk assembly 13, thereby reducing the tilt of the moving disk assembly 13 and maintaining a balanced state. In this way, the moving scroll gear 19 and the static scroll gear 18 are allowed to have a larger tooth height and more turns, so that the maximum volume of the scroll mechanism of the present invention is greatly improved compared with the existing scroll mechanism.

[0063] When the scroll mechanism needs to change volume, the moving disk assembly 13 can be translated along the first direction through the change of magnetic force, and the position of the moving disk assembly 13 in the first direction is adjusted, thereby changing the axial leakage gap between the moving disk assembly 13 and the static disk 110, changing the overlapping area of ​​the projections of the moving scroll gear 19 and the static scroll gear 18 on the plane parallel to the first direction, that is, changing the relative area of ​​the moving scroll gear 19 and the static scroll gear 18, and the gas force in the compression chamber changes accordingly. Through the continuous adjustment of the magnetic field strength of the first control magnet 16 and the second control magnet 12 by the control circuit, the axial force of the moving disk assembly 13 reaches a new balance, and the gas compression volume of the scroll mechanism is continuously adjusted to achieve the effect of stepless volume change. The magnetic force participates in balancing the axial force on the moving disk assembly 13, greatly reducing the mechanical friction of the moving disk assembly 13, and also creating a good foundation for the speed increase of the eccentric main shaft 14. The gas compression efficiency of the scroll mechanism can be further improved by increasing the rotation speed.

[0064] The variable capacity method of the scroll mechanism described in this embodiment is different from the traditional variable frequency variable capacity and digital variable capacity method. Variable frequency variable capacity introduces a large power consumption of about 10%. When the speed of the variable speed motor matched with the variable frequency is greatly different from the highest efficiency point, the motor efficiency is low. The digital variable capacity changes the effective compression time by changing the number of closures of the axial gap between the fixed and moving discs per unit time, thereby changing the exhaust volume. There is an impact on the structure during the variable capacity process, which reduces the service life of the scroll mechanism.

[0065] See also Figure 3-Figure 6 On the basis of the first embodiment of the scroll mechanism of the present invention, the control magnets include a plurality of second control magnets 12 and a plurality of first control magnets 16, the plurality of second control magnets 12 are evenly arranged along the circumference of the end surface of the frame 11, the plurality of first control magnets 16 are evenly arranged along the circumference of the disk surface of the stator 110, and the second control magnets 12 and the first control magnets 16 are arranged one by one. The projections of the control magnets (including the second control magnets 12 and the first control magnets 16) and the controlled magnets 17 on the plane perpendicular to the first direction overlap.

[0066] Among them, the first control magnet 16 and the second control magnet 12 are in corresponding positions and can be kept in the same size, and the magnetic field strength of the second control magnet 12 on the frame 11 and the magnetic field strength of the first control magnet 16 on the static disk 110 can be adjusted according to actual conditions. When the first control magnet 16 and the second control magnet 12 act on the controlled magnet 17 between them at the same time, the directions of the forces applied by the first control magnet 16 and the second control magnet 12 to the controlled magnet 17 are opposite, and the direction of the forces is parallel to the first direction, and participates in balancing the axial force and overturning moment received by the moving disk assembly 13, so that the moving disk assembly 13 can quickly reach balance at a certain axial position, complete the variable capacity process, make the displacement consistent with the actual needs, and achieve energy saving effect.

[0067] In one embodiment, the second control magnet 12 includes a second permanent magnet 122 and a second electromagnet 121, and the first control magnet 16 includes a first permanent magnet 162 and a first electromagnet 161. The magnetic field strength of the second permanent magnet 122 and the first permanent magnet 162 is constant. When the position of the moving disk assembly 13 remains unchanged, the magnetic force of the second permanent magnet 122 and the first permanent magnet 162 acting on the controlled magnet 17 is constant. The control circuit is used to control the magnetic force of the second electromagnet 121 and the first electromagnet 161 acting on the controlled magnet 17, so that the moving disk assembly 13 is in a predetermined posture, and also enables the moving disk assembly 13 to move along the first direction.

[0068] Specific examples include Figure 4 and Figure 5The frame 11 shown in the figure has second electromagnet mounting grooves 24 evenly distributed in the circumferential direction on its surface, and the second electromagnet mounting grooves 24 have threaded holes and wire inlet and outlet holes for wires to enter and exit. After the second electromagnet core 1211 is pressed by a pressure plate, the pressure plate is fixed in the second electromagnet mounting groove 24 by screws and other fasteners. A wire winding is installed on the teeth of the second electromagnet core 1211, and the second electromagnet core 1211 and the wire winding thereon constitute the second electromagnet 121. At this time, the second electromagnet 121 is the second control magnet 12. Among them, the second electromagnet core 1211 can be a silicon steel sheet group. The assembly surface of the frame 11 and the static disk 110 is provided with a plurality of first threaded mounting holes 25, and the frame 11 and the static disk 110 can be assembled together by threaded connection, and the assembly surface of the frame 11 and the static disk 110 is higher than the end surface of the second electromagnet mounting groove 24 on the frame 11. A third bearing hole 26 is provided at the center of the frame 11 for the eccentric main shaft 14 to pass through, and the third bearing hole 26 can be divided into a front bearing hole 27 for assembling a front rolling bearing 210 of the eccentric main shaft 14 and a rear bearing hole 28 for assembling a rear rolling bearing 29 of the eccentric main shaft 14 along the axial direction.

[0069] Specific examples include Figure 6A static disk 110 is provided with first electromagnet mounting grooves 211 evenly distributed in the circumferential direction on the surface. The first electromagnet mounting groove 211 is provided with threaded holes and wire entry and exit holes for wires to enter and exit. A mounting hole for installing a displacement sensor 23 is provided near the first electromagnet mounting groove 211. After the first electromagnet core 1611 is pressed by a pressure plate, the pressure plate is fixed in the first electromagnet mounting groove 211 with fasteners such as screws. A wire winding is installed on the teeth of the first electromagnet core 1611. The first electromagnet core 1611 and the wire winding thereon constitute the first electromagnet 161. At this time, the first electromagnet 161 is the first control magnet 16. Among them, the first electromagnet core 1611 can be a silicon steel sheet group. There are a plurality of first threaded mounting holes 212 on the assembly surface of the stator plate 110 and the frame 11. The stator plate 110 and the frame 11 can be assembled together through threaded connection. The assembly surface of the stator plate 110 and the frame 11 is higher than the end surface of the first electromagnet mounting groove 211 on the stator plate 110. After the stator plate 110 and the frame 11 are assembled, a space for accommodating the moving plate assembly 13 and its axial movement, and a working gap between the second electromagnet 121 and the first electromagnet 161 are formed. An air inlet hole 21 is provided at the outermost position of the stationary scroll gear 18 on the stator plate 110, and an air outlet hole 22 is provided at the inner end position of the stationary scroll gear 18. The gas enters the gas compression chamber formed by the meshing of the movable scroll gear 19 and the stationary scroll gear 18 from the air inlet 21. As the movable disk assembly 13 moves, the gas continuously moves toward the center of the tooth line of the movable scroll gear 19 and the stationary scroll gear 18, and the volume of the chamber continuously decreases to compress the gas, and finally discharges from the exhaust hole 22 at the inner end of the stationary disk 110. Since there is no air valve, there are fewer moving parts, and there are multiple compression chambers at the same time during the compression process, the scroll mechanism described in this embodiment is significantly superior to other types of gas compressors in terms of volumetric efficiency, vibration, air flow pulsation, volume, etc.

[0070] It should be noted that when the specific application form of the scroll mechanism is a scroll expander, high-pressure gas is introduced from the exhaust hole 22 of the scroll mechanism described in this embodiment and enters the central cavity, pushing the moving disc assembly 13. As the moving disc assembly 13 moves, the gas gradually moves from the central part to the periphery, the volume of the cavity continues to increase, the gas pressure in the cavity decreases, and is discharged from the peripheral air inlet 21 of the static disc 110 described in this embodiment. When the specific application form of the scroll mechanism is a vortex liquid pump, the number of turns of the scroll teeth needs to be limited to within 1.5 turns, the moving disc assembly 13 as a whole moves clockwise around the center of the base circle of the static disc 110, and the moving scroll teeth 19 and the static scroll teeth 18 mesh with each other to form a liquid suction chamber. The volume of the liquid suction chamber increases with the increase of the rotation angle, and the liquid is sucked in. When the rotation angle reaches 360°, the liquid suction chamber is closed. When the rotation angle continues to increase, the inner meshing point opens, and the liquid is discharged from the outlet under the push of the moving scroll teeth 19 and the static scroll teeth 18. It can be seen that the specific application forms of the vortex mechanism described in this embodiment can be different, but the structure remains consistent and does not need to be adjusted. The only difference is the working principle.

[0071] The scroll mechanism also includes a displacement sensor 23 for detecting the axial position of the moving plate assembly 13. The displacement sensor 23 is connected to the control circuit and is located on the frame 11 and / or the static plate 110. It is used to detect the distance between the frame 11 and / or the static plate 110 and the moving plate assembly 13, thereby placing the moving plate assembly 13 in a predetermined posture.

[0072] Specifically, the number of displacement sensors 23 can be 1, 2, 3, 4, 5, 6, ... For example, the displacement sensor 23 can detect the distance between the controlled magnet 17 and the second control magnet 12 or the first control magnet 16. The displacement sensor 23 feeds back the detected axial position to the control circuit, and the control circuit controls the current in the second control magnet 12 and the first control magnet 16 to adjust the electromagnetic force according to the detection result of the displacement sensor 23. The predetermined posture of the movable disk assembly 13 mentioned above means that the distance between the controlled magnet 17 and the second control magnet 12 or the first control magnet 16 detected by each displacement sensor 23 is the corresponding preset value, and it is considered that the movable disk assembly 13 is in the predetermined posture. Once the measurement value of some displacement sensors deviates from the corresponding preset value, it is considered that the movable disk assembly 13 is not in the predetermined posture and needs to be adjusted accordingly.

[0073] See also Fig.13 , 14 .in Fig.13 , 14 The closed loop in the middle is the magnetic circuit corresponding to the first control magnet 16 and the second control magnet 12.

[0074] In one embodiment, the magnetic poles of the first control magnet 16 with different polarities are arranged on the same side and located on the side of the first control magnet 16 facing the controlled magnet 17. The magnetic poles of the second control magnet 12 with different polarities are arranged on the same side and located on the side of the second control magnet 12 facing the controlled magnet 17. Among them, the opposite magnetic poles of the first control magnet 16 and the second control magnet 12 simultaneously attract or repel the controlled magnet 17, so that the directions of the magnetic forces of the first control magnet 16 and the second control magnet 12 acting on the controlled magnet 17 are opposite. It can be seen from the above that the magnetic poles of the first control magnet 16 and the second control magnet 12 are both involved in applying magnetic force to the controlled magnet 17, so as to make the movable disk assembly 13 in a predetermined posture, that is, the magnetic poles of the first control magnet 16 and the second control magnet 12 are both utilized, so as to more reasonably utilize magnetic resources and reduce waste.

[0075] In one embodiment, the controlled magnet 17 itself may not be magnetic, and it generates corresponding magnetism under the magnetic effect of the second control magnet 12 and the first control magnet 16. The controlled magnet 17 can be made of soft magnetic material with good magnetic conductivity, or laminated with soft magnetic material with good magnetic conductivity. The controlled magnet 17 itself may also be magnetic, and it can be made of permanent magnetic material. The magnetic lines of force generated by the second control magnet 12 on the frame 11 and the first control magnet 16 on the static disk 110 form their own closed loops, and at the same time generate attraction or repulsion on the controlled magnet 17. By adjusting the magnetic field strength of the second control magnet 12 and the first control magnet 16, the movable disk assembly 13 is prevented from tilting and can move along the axial direction.

[0076] For example, see Fig.13 , 14 The second electromagnet 121 and the first electromagnet 161 are located opposite to each other, and both are composed of Fig. 9 The silicon steel sheet group composed of a single silicon steel sheet 33 and a wire winding 36 mounted thereon is formed, and the wire winding 36 is connected to Fig.13 , 14 A magnetic field is generated after a current flows in the direction shown in the figure. The magnetic poles are distributed as shown in the figure. Fig.13 , 14 As shown, at this time, the relative magnetic poles of the first control magnet 16 and the second control magnet 12 have the same polarity. Fig.13 It is shown that when the controlled magnet 17 itself has no magnetism, the controlled magnet 17 generates corresponding magnetism due to the magnetic effect of the second control magnet 12 and the first control magnet 16 , and the first control magnet 16 and the second control magnet 12 attract the controlled magnet 17 at the same time. Fig.14 It is shown that when the controlled magnet 17 itself has magnetism, the first control magnet 16 and the second control magnet 12 simultaneously attract or repel the controlled magnet 17 by setting the magnetic poles of the controlled magnet 17. Fig.14As shown, the controlled magnet 17 is composed of two permanent magnets, the N poles of the two permanent magnets are located on the same side, the S poles of the two permanent magnets are located on the same side, the N pole of the controlled magnet 17 is opposite to the S pole of the first control magnet 16 and the second control magnet 12, the S pole of the controlled magnet 17 is opposite to the N pole of the first control magnet 16 and the second control magnet 12, and the first control magnet 16 and the second control magnet 12 attract the controlled magnet 17 at the same time.

[0077] Of course, the relative polarities of the first control magnet 16 and the second control magnet 12 may also be different, and the magnetism of the controlled magnet 17 may be adjusted accordingly so that the relative poles of the first control magnet 16 and the second control magnet 12 simultaneously attract or repel the controlled magnet 17, thereby making the directions of the magnetic forces of the first control magnet 16 and the second control magnet 12 acting on the controlled magnet 17 opposite.

[0078] See also Figure 7 and Figure 8 Based on the structure of the second embodiment of the vortex mechanism, the second control magnet 12 is set to be a second permanent magnet 122 and a second electromagnet 121, and the first control magnet 16 is set to be a first permanent magnet 162 and a first electromagnet 161.

[0079] The control circuit adjusts the electromagnetic force of the second electromagnet 121 and the first electromagnet 161 on the controlled magnet 17, and under the combined action of the electromagnetic force and the permanent magnetic force, the movable disk assembly 13 is axially suspended between the frame 11 and the static disk 110 without tilting. The permanent magnetic force of the second permanent magnet 122 and the first permanent magnet 162 on the controlled magnet 17 does not consume electrical energy, and can participate in balancing part of the axial force on the movable disk assembly 13, thereby further reducing energy consumption.

[0080] When the first control magnet 16 and the second control magnet 12 act on the controlled magnet 17 at the same time, the single second electromagnet 121 on the frame 11 and the single first electromagnet 161 corresponding to its position on the stator 110 form a pair of electromagnets. Each pair of electromagnets can be differentially connected. In actual use, the current of the second electromagnet 121 in the first pair of electromagnets on the frame 11 can be (a+a'), and the current of the first electromagnet 161 in the first pair of electromagnets on the stator 110 can be (a-a'); the current of the second electromagnet 121 in the second pair of electromagnets on the frame 11 can be (b+b'), and the current of the first electromagnet 161 in the second pair of electromagnets on the stator 110 can be (b-b'); the second electromagnet 121 in the third pair of electromagnets on the frame 11 The current can be (c+c'), and the current of the first electromagnet 161 in the third pair of electromagnets on the static disk 110 can be (c-c')... Among them, a, b, c... are the bias currents input by the second electromagnet 121 and the first electromagnet 161; a', b', c'... are the control currents of the second electromagnet 121 and the first electromagnet 161, and the bias currents of each pair of electromagnets can be the same, that is, a=b=c, and the control current is adjusted by the control circuit according to the detection result of the displacement sensor. The second electromagnet 121 and the first electromagnet 161 are composed of an electromagnet core and a wire winding 36 mounted thereon. The electromagnet core is made of a laminated soft magnetic material with good magnetic conductivity, and can be a silicon steel sheet group. A single silicon steel sheet 33 of the silicon steel sheet group can be as follows Fig. 9 or Fig.10 As shown, use Fig.11 or Fig.12 The pressing plate 35 shown presses the extended portions of the silicon steel sheet 33 at both ends, and the threaded holes on the pressing plate 35 are used to assemble the pressing plate 35 to the frame 11 or the stator 110 .

[0081] The second permanent magnet 122 and the first permanent magnet 162 may be made of rare earth permanent magnet material or iron oxide permanent magnet material. Fig.15 As shown, the back of the single permanent magnet block 37 is provided with a threaded hole for assembly with the frame 11 or the static disk 110. The second permanent magnet 122 and the first permanent magnet 162 respectively include a plurality of permanent magnet blocks. The second permanent magnet 122 and the first permanent magnet 162 can be formed by a plurality of permanent magnet blocks 37 arranged in a Halbach array. The second permanent magnet 122 and the first permanent magnet 162 are arranged opposite to each other. Fig.16 As shown, the magnetic lines of force form respective closed loops through the controlled magnets 17 on the moving disk assembly 13 , and all generate suction force on the moving disk assembly 13 .

[0082] like Figure 7As shown, a frame 11 of the present invention has second electromagnet mounting grooves 24 and second permanent magnet mounting grooves 38 arranged alternately along the circumferential direction on the surface, and the second electromagnet mounting grooves 24 have threaded holes and wire inlet and outlet holes for wires to enter and exit. After the second electromagnet core 1211 is pressed by a pressing plate, the pressing plate is fixed in the second electromagnet mounting groove 24 with fasteners such as screws, and a wire winding 36 is installed on the teeth 34 of the second electromagnet core 1211. The second electromagnet core 1211 and the wire winding 36 thereon constitute the second electromagnet 121, wherein the second electromagnet core 1211 can be a silicon steel sheet group. A threaded mounting hole is opened on the back of the second permanent magnet mounting groove 38, and a threaded hole is opened on the back of the second permanent magnet 122, and the second permanent magnet 122 is fixed to the frame 11 with fasteners such as screws. There are a plurality of first threaded mounting holes 25 on the mounting surface 312 of the frame 11 and the static disk 110. The frame 11 and the static disk 110 are assembled together by threaded connection. The second electromagnet 121 and the second permanent magnet 122 are assembled on the end surface 311 of the frame 11. The mounting surface 312 of the frame 11 and the static disk 110 is higher than the second electromagnet 121 and assembled on the end surface 311 of the frame 11. A third bearing hole 26 for assembling the eccentric main shaft 14 is provided at the center of the frame 11. The third bearing hole 26 can be divided into a front bearing hole 27 for assembling the front rolling bearing 210 of the eccentric main shaft 14 and a rear bearing hole 28 for assembling the rear rolling bearing 29 of the eccentric main shaft 14 along the axial direction. In addition, cooling air inlets and outlets 32 can be provided on the left and right sides of the frame 11 in the direction away from the static disk 110 and beyond the position of the second electromagnet mounting slot 24.

[0083] like Figure 8As shown, a static disk 110 of the present invention has a first electromagnet mounting groove 211 and a first permanent magnet mounting groove 313 which are alternately distributed along the circumferential direction on the end surface 316, and the first electromagnet mounting groove 211 has a threaded hole and a wire inlet and outlet hole for the wire to enter and exit. A mounting hole for the displacement sensor 23 to be installed is provided near the first electromagnet mounting groove 211. After the first electromagnet core 1611 is pressed by the pressure plate, the first electromagnet core 1611 is fixed in the first electromagnet mounting groove 211 with fasteners such as screws, and the wire winding 36 is installed on the teeth 34 of the first electromagnet core 1611. The first electromagnet core 1611 and the wire winding 36 thereon constitute the first electromagnet 161. Among them, the first electromagnet core 1611 can be a silicon steel sheet group. A threaded mounting hole is provided on the back of the mounting groove 313 of the first permanent magnet 162. A threaded hole is provided on the back of the first permanent magnet 162. The first permanent magnet 162 is fixed to the stator 110 with screws or other fasteners. There are multiple first threaded mounting holes 212 on the assembly surface 317 of the stator 110 and the frame 11. The stator 110 and the frame 11 are assembled together through threaded connection. The assembly surface 317 of the stator 110 and the frame 11 is higher than the end surface 316 of the first electromagnet 161 on the stator 110. After the stator 110 and the frame 11 are assembled, they form a space for accommodating the moving disk assembly 13 and its axial movement, and a working gap between the second electromagnet 121 and the first electromagnet 161. An air inlet 21 is provided at the outermost end of the stationary vortex gear 18 on the stator 110, and an exhaust hole 22 is provided at the inner end of the stationary vortex gear 18 of the stator 110. As shown in FIG. Fig.17 As shown, a heat sink 31 is disposed on the stator plate 110 .

[0084] Fig.18 It is a structural schematic diagram of the fourth embodiment of the vortex mechanism of the present invention. On the basis of the third embodiment, a permanent magnet bearing outer ring 41 is fixedly arranged in the first bearing hole 15; the eccentric shaft section of the eccentric main shaft 14 embedded in the first bearing hole 15 is fixedly arranged with a permanent magnet bearing inner ring 42; a working gap is provided between the permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42, and there is a magnetic force between the permanent magnet bearing inner ring 42 and the permanent magnet bearing outer ring 41, so that the eccentric main shaft 14 can drive the moving disk assembly 13 to move; specifically, the main shaft section of the eccentric main shaft 14 rotates around its axial direction, and the eccentric shaft section of the eccentric main shaft 14 drives the moving disk assembly 13 to revolve around the axis of the main shaft section of the eccentric main shaft 14. Among them, the main shaft section and the axial direction of the eccentric shaft section of the eccentric main shaft 14 are parallel to the above-mentioned first direction.

[0085] Among them, the inner ring 42 of the permanent magnet bearing and the outer ring 41 of the permanent magnet bearing can be made of rare earth permanent magnet material or iron oxide permanent magnet material. The outer ring 41 of the permanent magnet bearing is composed of a non-magnetic outer sleeve and an outer permanent magnet ring mounted in the non-magnetic outer sleeve, and the inner ring 42 of the permanent magnet bearing is composed of a non-magnetic inner sleeve and an inner permanent magnet ring fixedly mounted on the outer surface of the non-magnetic inner sleeve. The permanent magnet bearing as a driving bearing avoids the friction between the moving disk assembly 13 and the eccentric main shaft 14, overcomes the problems of severe friction, wear, cracking, jamming, and falling off of sliding bearings or rolling bearings caused by the temperature rise of the previous structure, does not require lubrication, is easy to assemble, and increases the service life of the vortex mechanism.

[0086] The permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42 are composed of multiple permanent magnet rings combined according to the Halbach array. The enhanced magnetic field formed by the Halbach array of the permanent magnet bearing outer ring 41 is on the inner side of the permanent magnet bearing outer ring 41, and the enhanced magnetic field formed by the Halbach array of the permanent magnet bearing inner ring 42 is on the outer side of the permanent magnet bearing inner ring 42, that is, the enhanced magnetic field formed is located between the permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42.

[0087] The Halbach array of the permanent magnet bearing inner ring 42 and the permanent magnet bearing outer ring 41 can be as follows: Fig.19 As shown, the magnetic poles of the permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42 are in the same relative position, and the two repel each other. When the eccentric main shaft 14 moves, under the action of the mutually repelling magnetic field, the moving disk assembly 13 moves accordingly, completing the compression of the gas in the multiple compression chambers between the moving scroll gear 19 and the static scroll gear 18. The Halbach array is a method of arranging multiple permanent magnet blocks with different magnetization directions in a certain manner. The Halbach array can form a magnetic field that significantly enhances one side and weakens the other side. Arranging according to the Halbach array can obtain a magnetic field of greater intensity with fewer permanent magnet blocks. When used in permanent magnet bearings, it can increase the magnetic field density in the working gap and improve the magnetic force between the inner and outer rings of the permanent magnet bearing.

[0088] See also Fig.18 , 21 .

[0089] In one embodiment, the scroll mechanism also includes an eccentric small shaft 43 arranged between the frame 11 and the moving plate assembly 13, the main shaft section of the eccentric small shaft 43 is assembled on the frame 11, and a second bearing hole 47 is provided on the side of the moving plate assembly 13 away from the static plate 110, and the eccentric shaft section of the eccentric small shaft 43 is embedded in the second bearing hole 47, and the axial directions of the main shaft section and the eccentric shaft section of the eccentric small shaft 43 are parallel to the above-mentioned first direction.

[0090] The eccentric shaft section of the eccentric main shaft 14 that cooperates with the first bearing hole 15 is eccentrically arranged with respect to other shaft sections of the eccentric main shaft 14 , and the eccentricity of the eccentric main shaft 14 is greater than the eccentricity of the eccentric small shaft 43 .

[0091] Among them, the eccentricity of the eccentric main shaft 14 is greater than the eccentricity of the eccentric small shaft 43, so that the angle between the magnetic force of the permanent magnet bearing inner ring 42 acting on the permanent magnet bearing outer ring 41 and the force perpendicular to the first direction received by the moving disk assembly 13 increases, further approaching 180°, so that the direction of the magnetic force of the permanent magnet bearing inner ring 42 acting on the permanent magnet bearing outer ring 41 can basically remain opposite to the direction of the force perpendicular to the first direction received by the moving disk assembly 13, and the force perpendicular to the first direction received by the moving disk assembly 13 is better balanced. Specifically, when stationary, the inner and outer rings of the permanent magnet bearing are eccentric, but the difference in the eccentricity of the inner and outer rings is small, and the force applied by the inner ring 42 of the permanent magnet bearing to the outer ring 41 of the permanent magnet bearing is small, and the force of the eccentric small shaft 43 on the moving disk assembly 13 balances the force of the inner ring 42 of the permanent magnet bearing on the outer ring 41 of the permanent magnet bearing. After the eccentric main shaft 14 rotates a certain angle, the force exerted by the permanent magnet bearing inner ring 42 on the permanent magnet bearing outer ring 41 is roughly equal to the main gas force perpendicular to the first direction exerted on the moving disk assembly 13, and the direction is opposite (that is, the angle between the magnetic force exerted by the permanent magnet bearing inner ring 42 on the permanent magnet bearing outer ring 41 and the force perpendicular to the first direction exerted on the moving disk assembly 13 is 180°), which is beneficial to reducing the magnetic force between the permanent magnet bearing inner ring 42 and the permanent magnet bearing outer ring 41 required when the permanent magnet bearing inner ring 42 drives the moving disk assembly 13.

[0092] In one embodiment, the vortex mechanism includes a plurality of eccentric small shafts 43, which are used to prevent the rotating motion of the moving disk assembly 13 during the revolution around the first direction. This embodiment is described by taking the vortex mechanism including three eccentric small shafts 43 as an example, which is only for the purpose of discussion and is not limited here. The center line of the three eccentric small shafts 43 forms an equilateral triangle. The center line of the equilateral triangle and the center line of the figure generating the vortex line on the moving disk assembly 13 are parallel to the axial direction of the eccentric main shaft 14, and are used to prevent the rotating motion of the moving disk assembly 13 during the revolution around the first direction.

[0093] like Fig.18 As shown, and refer to Fig. 20 The eccentric shaft section of an eccentric main shaft 14 of the present invention is installed with a permanent magnet bearing inner ring 42 arranged according to the Halbach array; the main shaft section of the eccentric main shaft 14 is installed with a front rolling bearing 210 and a rear rolling bearing 29, and the eccentric main shaft 14 is assembled on the frame 11 through the front rolling bearing 210 and the rear rolling bearing 29.

[0094] like Fig.18 As shown, and refer to Fig.21 and Fig. 22 The eccentric shaft section of the eccentric shaft 43 is equipped with a rolling bearing 44, the main shaft section of the eccentric shaft 43 is equipped with a first rolling bearing 45 and a second rolling bearing 46, and the eccentric shaft 43 is installed on the frame 11 through the first rolling bearing 45 and the second rolling bearing 46.

[0095] A second bearing hole 47 is provided on the side of the moving plate assembly 13 away from the stationary plate 110 .

[0096] The eccentric shaft section of the eccentric small shaft 43 is matched with the second bearing hole 47, the second bearing hole 47 is equipped with a bearing cover 48, and the main shaft section of the eccentric small shaft 43 is installed on the frame 11;

[0097] An annular step 49 is provided at the bottom end of the second bearing hole 47 . The diameter of the inner ring of the annular step 49 is larger than the outer diameter of the inner ring 441 of the rolling bearing 44 and smaller than the outer diameter of the outer ring 442 of the rolling bearing 44 .

[0098] The bearing cover 48 is provided with an annular protrusion 410 extending toward the rolling bearing 44 . The inner ring diameter of the annular protrusion 410 is larger than the outer diameter of the inner ring 441 of the rolling bearing 44 and smaller than the outer diameter of the outer ring 442 of the rolling bearing 44 .

[0099] The gap between the rolling bearing 44 and the annular step 49 in the first direction is the first gap, the gap between the rolling bearing 44 and the annular protrusion 410 in the first direction is the second gap, the gap between the first control magnet 16 and the controlled magnet 17 in the first direction is the third gap, the gap between the second control magnet 12 and the controlled magnet 17 in the first direction is the fourth gap, and the gap between the eccentric shaft section of the eccentric main shaft 14 and the bottom end of the first bearing hole 15 in the first direction is the fifth gap; wherein, the first gap is smaller than the fourth gap and the fifth gap, and the second gap is smaller than the third gap.

[0100] When the second control magnet 12 of the frame 11 and / or the first control magnet 16 of the static disk 110 loses power abnormally, the moving disk assembly 13 is subjected to unbalanced force, and the moving disk assembly 13 tilts or moves toward the frame 11 or the static disk 110. In this case, since the axial spacing between the controlled magnet 17 and the first control magnet 16, and the axial spacing between the controlled magnet 17 and the second control magnet 12 are respectively greater than the axial spacing between the rolling bearing 44 and the annular protrusion 410, and the axial spacing between the rolling bearing 44 and the annular step 49, the outer ring 442 of the rolling bearing 44 of the eccentric shaft section of the eccentric shaft 43 will first contact the annular protrusion 410 or the annular step 49, so that the moving disk assembly 13 will not collide with the frame 11 or the static disk 110, and the moving disk assembly 13, the static disk 110 and the frame 11 can be effectively protected.

[0101] When the center line of the first bearing hole 15 coincides with the center line of the eccentric shaft section of the eccentric main shaft 14 , the gap between the permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42 in the second direction is the sixth gap.

[0102] When the center line of the second bearing hole 47 coincides with the center line of the eccentric shaft section of the eccentric small shaft 43, the gap between the rolling bearing 44 and the second bearing hole 47 in the second direction is the seventh gap. The second direction is perpendicular to the first direction, and the seventh gap is smaller than the sixth gap.

[0103] The size of the seventh gap depends on the tangential gap of the meshing position of the movable scroll gear 19 and the static scroll gear 18 and the height of the movable scroll gear 19 and the static scroll gear 18. When at least part of the second control magnet 12 and the first control magnet 16 lose power abnormally, the movable disk assembly 13 tilts, and the outer ring 442 of the rolling bearing 44 of the eccentric shaft section of the eccentric shaft 43 moves at most to the hole wall of the second bearing hole 47. The smaller gap between the outer ring 442 of the rolling bearing 44 of the eccentric shaft section of the eccentric shaft 43 and the hole wall of the second bearing hole 47 limits the tilt of the movable disk assembly 13, avoids the collision between the movable scroll gear 19 and the static scroll gear 18, and can effectively protect the movable disk assembly 13 and the static disk 110; at the same time, it can also avoid the first bearing hole 15 from contacting the eccentric shaft section of the eccentric main shaft 14, causing mechanical friction and collision.

[0104] In one embodiment, the structure of the moving disk assembly 13 can be as follows: Fig.23 As shown, a movable scroll gear 19 is provided on the movable disk assembly 13, and the tooth height of the movable scroll gear 19 of the movable disk assembly 13 is the same as the tooth height of the stationary scroll gear 18 of the stationary disk. A controlled magnet 17 is provided on the outer edge of the movable disk assembly 13, and the controlled magnet can be a ring-shaped electrical pure iron 413. The structure of the ring-shaped electrical pure iron 413 on the movable disk assembly 13 is as shown in FIG. Fig.24 As shown, it is annular as a whole, and the thickness direction of the electrical pure iron 413 is perpendicular to the end face of the moving disk. The electrical pure iron 413 is fixed to the moving disk assembly 13 by threaded connection. The first bearing hole 15 at the center position of the back of the moving disk assembly 13 is equipped with a permanent magnet bearing outer ring 41. A plurality of second bearing holes 47 are arranged along the circumferential direction on the back of the moving disk assembly 13. The number of the second bearing holes 47 can be one or more. The second bearing holes 47 are equipped with bearing covers 48. There is a radial working gap between the permanent magnet bearing outer ring 41 and the permanent magnet bearing inner ring 42. There is a clearance fit between the second bearing hole 47 of the moving disk assembly 13 and the outer ring 442 of the rolling bearing 44 of the eccentric section of the eccentric shaft 43. The clearance assembly relationship between the moving disk assembly 13 and the eccentric shaft 43 provides a sliding pair for the variable capacity process of the vortex mechanism. The back projection of the moving disk assembly 13 is partially shown as follows. Fig.25As shown, the center line 411 of the three second bearing holes 47 on the moving disk assembly 13 forms an equilateral triangle, and the centroid 412 of the equilateral triangle is consistent with the projection position of the center of the base circle of the moving scroll tooth 19 (or other figures that can generate an involute) on the plane perpendicular to the first direction, and is aligned with the center of the outer ring 41 of the permanent magnet bearing on the moving disk assembly 13 as much as possible.

[0105] like Fig.26 , Fig. 27 As shown, Fig.26 It is a schematic structural diagram of the fifth embodiment of the scroll mechanism of the present invention. Fig. 27 1 is a structural schematic diagram of the movable disk assembly 13 of the present invention. On the basis of the fourth embodiment, the movable disk assembly 13 is divided into a fixed movable disk 131 and a tray 132, a closed compression chamber is formed between the movable disk 131 and the static disk 110, a heat dissipation structure 51 is provided on the back of the movable disk 131, a first bearing hole 15 is provided at the center of the tray 132, and a second bearing hole 47 is provided at the periphery, the eccentric shaft section of the eccentric main shaft 14 cooperates with the first bearing hole 15, and the eccentric shaft section of the eccentric small shaft 43 cooperates with the second bearing hole 47.

[0106] The moving plate assembly 13 is as follows Fig. 27 As shown in FIG. 1 , the movable plate assembly 13 is composed of a movable plate 131 and a tray 132 connected together by threads. The structure of the movable plate 131 can be as follows: Fig.28 As shown, a movable scroll 19 is provided on the movable disk 131, and the tooth height of the movable scroll 19 is the same as the tooth height of the fixed scroll 18. Fig.28 , the outer edge of the moving disk 131 is provided with a plurality of controlled magnet installation grooves along the circumferential direction. A controlled magnet 17 is installed in each controlled magnet installation groove. The controlled magnet 17 can be a group of silicon steel sheets. The width direction of the silicon steel sheet group is perpendicular to the end face of the moving disk 131. The silicon steel sheet group is fixed in the controlled magnet installation groove by a pressure plate. The top end of the moving scroll tooth 19 protrudes from the moving disk 131 and is arranged close to the end face of the static disk 110 to ensure the normal working gap between the first control magnet 16 and the controlled magnet 17. A plurality of threaded holes are provided on the heat dissipation structure 51 on the back of the moving disk 131, and the moving disk 131 is connected to the tray 132 through the threaded holes. As shown Fig.29 As shown, the two ends of the controlled magnet silicon steel sheet 52 each have a wing portion, which is used for installing and fixing the controlled magnet silicon steel sheet group of the moving disk 131. Fig.30 The controlled magnet pressure plate 53 shown presses the controlled magnet silicon steel sheet group into the controlled magnet mounting groove. The controlled magnet mounting groove of the moving disk 131 and the top of the controlled magnet pressure plate 53 are both provided with threaded holes, and the controlled magnet pressure plate 53 is installed on the moving disk 131 through threaded connection.

[0107] Tray 132 Fig.31As shown, there are three second bearing holes 47 on the back of the tray 132 along the circumferential direction. The ends of the second bearing holes 47 are equipped with bearing caps 48. The outer ring 41 of the permanent magnet bearing is equipped at the center of the tray 132. There is a working gap in the second direction between the outer ring 41 of the permanent magnet bearing and the inner ring 42 of the permanent magnet bearing. There is an axial gap between the end face of the annular step 49 in the second bearing hole 47 and the end face of the rolling bearing of the eccentric shaft section of the eccentric shaft 43, and between the end face of the bearing cap 48 and the end face of the rolling bearing of the eccentric shaft section of the eccentric shaft 43. There is a clearance fit between the second bearing hole 47 on the tray 132 and the rolling bearing of the eccentric shaft section of the eccentric shaft 43. The clearance fit between the tray 132 and the eccentric shaft 43 provides a sliding pair for the variable capacity process of the vortex mechanism. The tray 132 is provided with inner and outer circles of threaded holes for assembly with the moving disk assembly 13. The back projection of the tray 132 is partially shown as follows. Fig.32 As shown, the center lines of the three second bearing holes 47 arranged on the tray 132 form an equilateral triangle, the centroid of the equilateral triangle is consistent with the projection position of the center of the base circle of the vortex line of the moving disk 131 (or other figures that can generate an involute) on the plane perpendicular to the first direction, and is aligned with the center of the outer ring 41 of the permanent magnet bearing on the tray 132 as much as possible.

[0108] In this embodiment, by dividing the moving disk assembly 13 into a moving disk 131 and a tray 132 fixedly connected together, a heat dissipation structure 51 can be set on the moving disk assembly 13 to reduce the temperature of the moving disk assembly 13 and the static disk 110 and reduce thermal deformation of the structure.

[0109] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A scroll mechanism, characterized in that: The scroll mechanism comprises: frame; A static disk is fixed to the frame, and a control magnet is arranged around the frame and / or the static disk; A moving disk assembly, the moving disk assembly is located between the frame and the static disk, and a controlled magnet is arranged around the moving disk assembly; A control circuit for controlling the magnetic force between at least part of the control magnet and the controlled magnet so that the moving disk assembly is in a predetermined posture; The axial direction of the scroll mechanism is a first direction, and the control magnet includes a plurality of first control magnets and a plurality of second control magnets, and the second control magnets and the first control magnets are arranged in a one-to-one correspondence; The first control magnet includes a first electromagnet, the second control magnet includes a second electromagnet, and the control circuit is used to control the first electromagnet and the second electromagnet so that the moving disk assembly can move along the first direction to achieve stepless capacitance variation of the scroll mechanism; The scroll mechanism further comprises an eccentric main shaft, a main shaft section of the eccentric main shaft is assembled on the frame, a first bearing hole is arranged on the side of the moving plate assembly away from the static plate, the eccentric shaft section of the eccentric main shaft is embedded in the first bearing hole, and the main shaft section of the eccentric main shaft and the axial direction of the eccentric shaft section are parallel to the first direction; Among them, the eccentric shaft section of the eccentric main shaft is provided with a permanent magnet bearing inner ring, and the first bearing hole is provided with a permanent magnet bearing outer ring. There is a magnetic force between the permanent magnet bearing inner ring and the permanent magnet bearing outer ring, so that the eccentric main shaft can drive the moving disk assembly to move.

2. The scroll mechanism according to claim 1, characterized in that: The projections of the control magnet and the controlled magnet on a plane perpendicular to the first direction overlap, and the control circuit is used to control the magnetic force of at least part of the control magnet acting on the controlled magnet, so that the moving disk assembly is suspended between the frame and the static disk, and the moving disk assembly is in a balanced state.

3. The scroll mechanism according to claim 2, characterized in that: The plurality of second control magnets are evenly arranged along the circumference of the frame end surface, and the plurality of first control magnets are evenly arranged along the circumference of the stator disk surface.

4. The scroll mechanism according to claim 3, characterized in that: The first control magnet includes a first permanent magnet and a first electromagnet, and the second control magnet includes a second permanent magnet and a second electromagnet. The magnetic field strengths of the first permanent magnet and the second permanent magnet are constant.

5. The scroll mechanism according to claim 4, characterized in that: The first permanent magnet and the second permanent magnet respectively include a plurality of permanent magnet blocks, and the permanent magnet blocks of the first permanent magnet and the second permanent magnet are arranged according to a Halbach array, and the enhanced magnetic field formed is located between the first permanent magnet and the controlled magnet, and between the second permanent magnet and the controlled magnet.

6. The scroll mechanism according to claim 3, characterized in that: The magnetic poles of the first control magnet with different polarities are arranged on the same side and are located on the side of the first control magnet facing the controlled magnet; The magnetic poles of the second control magnet with different polarities are arranged on the same side and are located on the side of the second control magnet facing the controlled magnet; The opposite magnetic poles of the first control magnet and the second control magnet simultaneously attract or repel the controlled magnet, so that the magnetic forces of the first control magnet and the second control magnet acting on the controlled magnet are in opposite directions.

7. The scroll mechanism according to claim 2, characterized in that: The scroll mechanism also includes a displacement sensor, which is connected to the control circuit and is located on the frame and / or the stator plate, and is used to detect the distance between the frame and / or the stator plate and the moving plate assembly, thereby placing the moving plate assembly in the predetermined posture.

8. The scroll mechanism according to claim 1, characterized in that: The outer ring of the permanent magnet bearing and the inner ring of the permanent magnet bearing are respectively composed of a plurality of permanent magnet rings combined according to a Halbach array, and the enhanced magnetic field formed is located between the outer ring of the permanent magnet bearing and the inner ring of the permanent magnet bearing.

9. The scroll mechanism according to claim 8, characterized in that: The magnetic poles at corresponding positions on opposite sides of the permanent magnet bearing outer ring and the permanent magnet bearing inner ring are of the same polarity, forming a repulsive state.

10. The scroll mechanism according to claim 1, characterized in that: The scroll mechanism also includes an eccentric small shaft, the main shaft section of the eccentric small shaft is assembled on the frame, a second bearing hole is provided on the side of the moving plate assembly away from the static plate, the eccentric shaft section of the eccentric small shaft is embedded in the second bearing hole, and the axial directions of the main shaft section and the eccentric shaft section of the eccentric small shaft are parallel to the first direction.

11. The scroll mechanism according to claim 10, characterized in that: The second bearing hole is equipped with a bearing cap, and the shaft section of the eccentric small shaft between the bearing cap and the bottom end of the second bearing hole is equipped with a rolling bearing; The bottom end of the second bearing hole is provided with an annular step, the inner ring of the annular step has a diameter larger than the outer diameter of the inner ring of the rolling bearing and smaller than the outer diameter of the outer ring of the rolling bearing; The bearing cover is provided with an annular protrusion extending toward the rolling bearing, wherein the inner ring diameter of the annular protrusion is larger than the outer diameter of the inner ring of the rolling bearing and smaller than the outer diameter of the outer ring of the rolling bearing; The gap between the rolling bearing and the annular step in the first direction is the first gap, the gap between the rolling bearing and the annular protrusion in the first direction is the second gap, the gap between the first control magnet and the controlled magnet in the first direction is the third gap, the gap between the second control magnet and the controlled magnet in the first direction is the fourth gap, and the gap between the eccentric shaft section of the eccentric main shaft and the bottom end of the first bearing hole in the first direction is the fifth gap; wherein, the first gap is smaller than the fourth gap and the fifth gap, and the second gap is smaller than the third gap.

12. The scroll mechanism according to claim 11, characterized in that: When the center line of the first bearing hole coincides with the center line of the eccentric shaft segment of the eccentric main shaft, the gap between the outer ring of the permanent magnet bearing and the inner ring of the permanent magnet bearing in the second direction is a sixth gap; When the center line of the second bearing hole coincides with the center line of the eccentric shaft section of the eccentric small shaft, the gap between the rolling bearing and the second bearing hole in the second direction is the seventh gap; The second direction is perpendicular to the first direction, and the seventh gap is smaller than the sixth gap.

13. The scroll mechanism according to claim 10, characterized in that: The eccentricity of the eccentric main shaft is greater than the eccentricity of the eccentric minor shaft.

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