Rotor structure, motor and compressor

Abstract

The invention provides a rotor structure, a motor and a compressor, the rotor structure comprises a rotor iron core, the rotor iron core is provided with a plurality of circulation holes, the rotor iron core is provided with an oil-gas separation assembly, the circulation holes are communicated with the oil-gas separation assembly, and the oil-gas separation assembly is communicated with the circulation holes along the radial outward direction of the rotor iron core. And the oil-gas separation assembly can output the mixture in the circulation hole. According to the invention, the exhaust oil content of the compressor can be effectively reduced, and the compression reliability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of compressors, and in particular relates to a rotor structure, a motor and a compressor. Background Art

[0002] With the widespread use of variable-frequency air conditioners, users have higher and higher requirements for the performance of air conditioners. A key component that affects performance is the compressor of the outdoor unit. Therefore, improving the efficiency of the compressor is the key to improving the quality of air conditioners.

[0003] The compressor is mainly composed of a housing, a pump body, and a motor. The motor consists of a stator and a rotor. The rotor is connected to the pump body through a crankshaft. The rotor includes a rotor core, a magnet, a balance block, an oil retaining structure, etc. When the compressor is running, a three-phase power supply is connected to the stator, and the rotating magnetic field drives the rotor to rotate, and together with the crankshaft, drives the pump body to perform compression movement. When the refrigerant is compressed, it is inevitable that the refrigerant oil will be mixed. The refrigerant oil is discharged with the compressed high-pressure gas and flows into the upper chamber of the compressor through the rotor flow hole. At the same time, after the high-pressure oil-gas mixture passes through the rotor flow hole, it is buffered by the oil retaining structure, and the refrigerant and the refrigerant oil gas are separated.

[0004] When the rotary compressor is running, especially at high frequency, if the oil is not fully thrown and the gas and liquid are not completely separated, the refrigerant oil inside the compressor will be discharged with the exhaust gas flow and enter the system, which will make the oil return of the compressor more difficult, resulting in the lack of refrigerant oil in the compressor, causing poor lubrication of compressor parts, increased wear, and the inability to ensure the reliability of the compressor operation. In addition, the increase in oil discharge rate will increase the refrigerant oil entering the condenser and evaporator, reduce the heat exchange capacity of the air conditioning system, and worsen the heat exchange conditions, thereby causing the performance of the air conditioning system to decline. Therefore, it is particularly important to design the oil retaining structure reasonably.

[0005] Since the compressor in the prior art has a high oil discharge rate at ultra-high speed, resulting in a lack of refrigeration oil in the compressor, which reduces the operating reliability of the compressor, the present invention studies and designs a rotor structure, a motor, and a compressor. Summary of the invention

[0006] Therefore, the present invention provides a rotor structure, a motor, and a compressor, which can effectively reduce the oil content of the compressor exhaust and improve the reliability of compression.

[0007] In order to solve the above problems, the present invention provides a rotor structure, including: a rotor core, wherein the rotor core has a plurality of flow holes, and an oil-gas separation component is arranged on the rotor core, wherein the flow holes are connected to the oil-gas separation component, and the oil-gas separation component can output the mixture in the flow holes along the radial outward direction of the rotor core.

[0008] In some embodiments, the oil-gas separation component includes a baffle and a plurality of guide members, the baffle being disposed on the rotor core, the baffle being provided with a plurality of guide holes, the guide member being disposed on the baffle, the guide member having a connecting channel, the connecting channel being connected to the guide holes, the baffle and the guide members being arranged in sequence along the flow direction of the mixture, the guide holes being arranged one-to-one with the flow holes, and the guide holes being arranged one-to-one with the guide members.

[0009] In some embodiments, one end of the guide member is disposed on the baffle, and the other end of the guide member is provided with a nozzle, and the guide hole is connected to the nozzle through the connecting channel.

[0010] In some embodiments, an inlet cross-sectional area of ​​the communication channel is larger than an outlet cross-sectional area of ​​the nozzle.

[0011] In some embodiments, an adjustment plate is provided on the inner wall of the nozzle, and one end of the adjustment plate facing away from the nozzle outlet is movably connected to the inner wall of the nozzle. The adjustment plate and the inner wall of the nozzle are connected by an elastic member, and the elastic member is arranged close to the nozzle outlet.

[0012] In some embodiments, a plurality of guide plates are disposed along the inner wall of the guide member, and the guide plates are disposed at intervals on the inner wall of the guide member along the flow direction of the mixture.

[0013] In some embodiments, the plurality of guide plates are divided into two rows and arranged on the inner wall of the guide member, the two rows of guide plates are arranged alternately, and the guide member extends in a direction away from the baffle.

[0014] In some embodiments, an angle α is formed between the guide plate and the inner wall of the guide member, and the value range of α is 40° to 60°.

[0015] In some embodiments, a guide channel is provided on the guide member, the outlet of the guide channel is opened on the outer wall of the guide member, the inlet of the guide channel is opened on the inner wall of the guide member, the guide channel has multiple inlets, and the inlet of the guide channel is located on the side of the guide plate away from the baffle, and the inlet of the guide channel is arranged one-to-one with the guide plate.

[0016] In some embodiments, a plurality of return grooves are provided at one end of the baffle plate facing away from the rotor core along the radial direction of the baffle plate, the outlet of the guide channel is arranged close to the baffle plate relative to the inlet of the guide channel, and the outlet of the guide channel is arranged opposite to the return grooves.

[0017] The present invention also provides a motor, comprising the above-mentioned rotor structure.

[0018] The present invention also provides a compressor, comprising the above-mentioned rotor structure.

[0019] In some embodiments, the compressor includes a shell. When one end of the guide member is arranged on the baffle and the other end of the guide member is provided with a nozzle, the opening distance of the nozzle outlet is L1, the maximum opening value of the nozzle is L2, the time between the mixture being ejected from the nozzle outlet and contacting the inner wall of the shell is t, the flow rate of the mixture is Q, and the cross-section of the rotor core is taken as a horizontal plane. There is an angle β between the center line of the nozzle and the horizontal plane. The straight-line distance from the nozzle outlet to the inner wall of the shell is L, and the area of ​​the flow hole is S1, which satisfies, L1=(2*t*Q*L2*cos(-β)) / (L*S1).

[0020] In some embodiments, when one end of the guide member is arranged on the baffle and the other end of the guide member is provided with a nozzle, the compressor includes a stator assembly, the rotor core is sleeved in the stator assembly, the stator assembly includes a stator frame and a stator core, the distance between the stator frame and the end of the stator core is H1, the distance between the nozzle outlet and the end of the rotor core is H2, and the height difference between the stator core and the rotor core is K, which satisfies H2>H1+K.

[0021] The rotor structure, motor and compressor provided by the present invention have the following beneficial effects:

[0022] When the rotor structure of the present invention is applied to a compressor, an oil-gas mixed fluid flows out from the flow holes of the rotor core, and all the oil-gas mixed fluid flowing out from the flow holes of the rotor core flows into an oil-gas separation component, through which the oil-gas separation component sprays the oil-gas mixed fluid at a certain elevation angle. With sufficient kinetic energy, the oil-gas mixed fluid is sprayed onto the inner wall of the compressor to collide, and oil and gas separation is performed. The refrigerant oil flows back from the inner wall of the compressor through the flow holes of the stator cut edge to the oil pool at the bottom of the compressor, and the gaseous refrigerant can be discharged from the exhaust pipe, thereby effectively reducing the exhaust oil content of the compressor and solving the problem of high oil content at high frequency and ultra-high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 is a schematic structural diagram of the rotor structure of the present invention;

[0025] Figure 2 The structure of the oil-gas separation component in the rotor structure of the present invention is schematically shown. Figure 1 ;

[0026] Figure 3 The structure of the oil-gas separation component in the rotor structure of the present invention is schematically shown. Figure 2 ;

[0027] Figure 4 The structure of the oil-gas separation component in the rotor structure of the present invention is schematically shown. Figure 3 ;

[0028] Figure 5 The structure of the oil-gas separation component in the rotor structure of the present invention is schematically shown. Figure 1 ;

[0029] Figure 6 The structure of the baffle in the rotor structure of the present invention is schematically shown. Figure 1 ;

[0030] Figure 7 The structure of the baffle in the rotor structure of the present invention is schematically shown. Figure 2 ;

[0031] Figure 8 The structure of the baffle in the rotor structure of the present invention is schematically shown. Figure 3 ;

[0032] Fig. 9 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 1 ;

[0033] Fig.10 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 2 ;

[0034] Fig.11 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 3 ;

[0035] Fig.12 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 4 ;

[0036] Fig.13 is a partial enlarged view of the nozzle in the rotor structure of the present invention;

[0037] Fig.14 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 5 ;

[0038] Fig.15 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 6 ;

[0039] Fig.16 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 7 ;

[0040] Fig.17 The structure of the flow guide in the rotor structure of the present invention is schematically shown in FIG. Figure 8 ;

[0041] Fig.18 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 1 ;

[0042] Fig.19 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 2 ;

[0043] Fig. 20 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 3 ;

[0044] Fig.21 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 4 ;

[0045] Fig. 22 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 5 ;

[0046] Fig.23 Schematic diagram of the structure of a motor in another embodiment of the present invention Figure 6 ;

[0047] Fig.24 The structure of the balancing block in the motor of another embodiment of the present invention is shown in FIG. Figure 1 ;

[0048] Fig.25 The structure of the balancing block in the motor of another embodiment of the present invention is shown in FIG. Figure 2 ;

[0049] Fig.26 It is a relationship table between the angle between the guide plate and the inner wall of the guide member in the rotor structure of the present invention and the gas flowability.

[0050] The accompanying drawings are marked as follows:

[0051] 1. Rotor core; 2. Baffle; 3. Oil-gas separation assembly; 4. Guide hole; 5. Mounting hole; 6. Countersunk hole; 7. Guide channel; 8. Mounting part; 9. Guide part; 10. Nozzle; 11. Reflux groove; 12. Guide plate; 13. Adjustment plate; 14. Elastic part; 15. Balance block; 16. Stator assembly. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0056] See also Figure 1-26As shown, according to an embodiment of the present invention, a rotor structure is provided, comprising: a rotor core 1, the rotor core 1 having a plurality of flow holes, the rotor core 1 being provided with an oil-gas separation component 3, the flow holes being connected to the oil-gas separation component 3, and the oil-gas separation component 3 being able to output the mixture in the flow holes along the radially outward direction of the rotor core 1. In this technical scheme, when the rotor structure of the present invention is applied to a compressor, an oil-gas mixed fluid flows out from the flow holes of the rotor core, and the oil-gas mixed fluid flowing out from the flow holes of the rotor core all flows into the oil-gas separation component 3, and the oil-gas separation component 3 sprays the oil-gas mixed fluid at a certain elevation angle through the oil-gas separation component 3, and under sufficient kinetic energy, the oil-gas mixed fluid is sprayed to the inner wall of the compressor to collide, and oil-gas separation is performed, and the refrigeration oil flows back from the inner wall of the compressor through the flow holes of the stator cut edge to the oil pool at the bottom of the compressor, and the gaseous refrigerant can be discharged from the exhaust pipe, effectively reducing the oil content of the compressor exhaust gas, and solving the problem of high oil content at high frequency and ultra-high speed.

[0057] In some embodiments, the oil-gas separation component 3 includes a baffle 2 and a plurality of guide members 9, wherein the baffle 2 is disposed on the rotor core 1, and a plurality of guide holes 4 are disposed on the baffle 2. The guide members 9 are disposed on the baffle 2, and the guide members 9 have a connecting channel, which is connected to the guide holes 4. Along the flow direction of the mixture, the baffle 2 and the guide members 9 are arranged in sequence, the guide holes 4 are arranged one-to-one with the flow holes, and the guide holes 4 are arranged one-to-one with the guide members 9. In this technical solution, the baffle 2 is provided with a mounting hole 5 and a guide hole 4, and the baffle 2 is connected to the rotor core 1 through the mounting hole 5. Preferably, the baffle 2 is connected to the rotor core 1 by rivets through the mounting hole 5, and the guide hole 4 is opposite to the guide member 9. Along the flow direction of the mixture, the baffle 2 and the guide member 9 are arranged in sequence, and the guide hole 4 is arranged one-to-one with the flow hole, and the guide hole 4 is arranged one-to-one with the flow hole, so as to ensure that the oil-gas mixture in the flow hole of the rotor core 1 can flow into the connecting channel. Preferably, the baffle 2 is provided with a countersunk hole, and the mounting hole 5 and the guide hole 4 are located in the countersunk hole, so that the rotor baffle 2 and the guide member 9 can be better matched and assembled, improve the sealing performance, and greatly reduce the leakage of the oil-gas mixed fluid from the connection between the two parts; at the same time, the countersunk hole 5 gives way to the structure of the limit, which is more convenient for assembly, placement and positioning. The guide member 9 adopts a tubular structure and a conduit. The outer wall of the guide member 9 is provided with a mounting member 8, and the guide member 9 is connected to the baffle plate 2 via the mounting member 8. The mounting member 8 and the baffle plate 2 can be connected by rivets or other means.

[0058] The rotor baffle 2 is a flat plate structure, provided with a mounting hole 5 and a flow guide hole 4. The mounting hole 5 is used to connect the rivet, and the flow guide hole 4 corresponds to the shape and size of the flow hole on the rotor core 1. One side of the baffle 2 is in contact with the rotor core, and the other side of the baffle 2 is equipped with a flow guide 9 and a balancing block 15. At the same time, the rivet holes and the flow holes on this side are designed with a countersunk hole 5 to give way to the structure, so that the rotor baffle 2 and the flow guide 9 can be better matched and assembled, the sealing performance can be improved, and the leakage of the oil-gas mixed fluid from the connection between the two parts can be greatly reduced; at the same time, the countersunk hole 5 gives way to the structure also acts as a limit structure, which is more convenient for assembly, placement and positioning.

[0059] In some embodiments, one end of the guide member 9 is disposed on the baffle 2, and a nozzle 10 is disposed at the other end of the guide member 9, and the guide hole 4 is connected to the nozzle 10 through the connecting channel. In this technical solution, the nozzle 10 further provides power for the oil-gas mixture flowing out of the guide member 9, and under sufficient kinetic energy, the oil-gas mixed fluid is sprayed onto the inner wall of the compressor to collide, thereby performing oil-gas separation.

[0060] In some embodiments, the inlet cross-sectional area of ​​the communication channel is larger than the outlet cross-sectional area of ​​the nozzle 10. In this technical solution, the inlet cross-sectional area of ​​the communication channel is larger than the outlet cross-sectional area of ​​the nozzle 10, thereby further improving the power of the oil-gas mixture sprayed from the nozzle 10 and ensuring the oil-gas separation effect.

[0061] In some embodiments, the inner wall of the nozzle 10 is provided with an adjustment plate 13, and one end of the adjustment plate 13 facing away from the outlet of the nozzle 10 is movably connected to the inner wall of the nozzle 10, and the adjustment plate 13 is connected to the inner wall of the nozzle 10 through an elastic member 14, and the elastic member 14 is arranged near the outlet of the nozzle 10. In this technical solution, one end of the adjustment plate 13 facing away from the guide member 9 is flush with the end face of the outlet of the nozzle 10. The elastic member 14 is a spring, and the cross section of the outlet of the nozzle 10 is adjustable through the elastic member 14, so that the nozzle of the compressor can generate sufficient power for the oil-gas mixture at different frequencies to ensure the oil-gas separation effect.

[0062] In some embodiments, a plurality of guide plates 12 are arranged along the inner wall of the guide member 9, and the guide plates 12 are arranged at intervals on the inner wall of the guide member 9 along the flow direction of the mixture. In this technical solution, after the oil-gas mixture enters the guide member 9, it collides with the guide plates 12 when flowing in the guide member 9, resulting in oil-gas separation, so that the rotor structure of the present invention performs multiple oil-gas separations on the oil-gas mixture, greatly reducing the oil discharge rate of the compressor.

[0063] In some embodiments, the plurality of guide plates 12 are arranged in two rows on the inner wall of the guide member 9, the two rows of guide plates 12 are arranged in a staggered manner, and the guide member 9 extends in a direction away from the baffle 2. In this technical solution, under the action of the two rows of guide plates 12, the connecting channel in the guide member 9 is S-shaped, and after the oil-gas mixture enters the guide member 9, it collides with the guide plate 12 when flowing in the guide member 9, resulting in oil-gas separation, so that the rotor structure of the present invention performs multiple oil-gas separations on the oil-gas mixture, greatly reducing the oil discharge rate of the compressor.

[0064] In some embodiments, the guide plate 12 and the inner wall of the guide member 9 have an angle α, and the value range of α is 40° to 60°. In this technical solution, too large an angle will lead to poor airflow, and too large an angle will lead to poor oil-gas separation effect.

[0065] The guide member 9 is in the shape of a letter "7", and includes a mounting member 8, a connecting channel and a nozzle 10; wherein a guide plate 12 is provided in the connecting channel for lengthening the path of the oil-gas mixed fluid, and partial oil-gas separation is performed when the oil-gas mixed fluid hits the guide plate 12 and the inner wall of the connecting channel during the process of traveling; the mounting member 8 and the guide member 9 are provided with a guide channel 7, which returns the refrigeration oil separated in the guide member 9 to the reflux groove 11 of the rotor baffle 2, and then flows to the inner wall of the stator, and finally flows back to the lower chamber of the compressor to provide lubrication; the oil-gas mixed fluid partially separated through the front path is further quickly sprayed onto the inner wall of the compressor housing through the nozzle 10, which is conducive to the separation of oil and gas on a sufficiently long injection path, and at the same time, when the oil-gas mixed fluid hits the inner wall of the housing, the impact can also make the oil and gas further completely separated, and the refrigerant flows out from the exhaust port with the airflow, and the refrigeration oil adheres to the inner wall of the housing and flows back from the cut edge of the stator core to the lower chamber of the compressor to provide lubrication;

[0066] The guide plate 12 and the inner wall of the guide member 9 need to form a certain angle α. Too large an angle will lead to poor airflow, and too large an angle will lead to poor oil-gas separation effect. Fig.26 As shown in the table below, by comparison, it is confirmed that the best effect is achieved when the α angle is controlled between 40° and 60°.

[0067] α 10 20 30 40 50 60 70 80 90 Oil content 1.8％ 1.6％ 1.43％ 1.3％ 1.2％ 1.11％ 1.05％ 1.02％ 1％

[0068] In some embodiments, the guide member 9 is provided with a guide channel 7, the outlet of the guide channel 7 is opened on the outer wall of the guide member 9, the inlet of the guide channel 7 is opened on the inner wall of the guide member 9, the guide channel 7 has multiple inlets, and the inlet of the guide channel 7 is located on the side of the guide plate 12 away from the baffle 2, and the inlet of the guide channel 7 is arranged one by one with the guide plate 12. In this technical solution, after the oil-gas mixture collides with the guide plate 12, the separated oil will adhere to the guide plate 12 or the inner wall of the guide member 9, and fall on the guide plate 12 below under the action of gravity, so as to converge into the groove formed by the guide plate 12 and the inner wall of the guide member 9, and the collected lubricating oil is discharged out of the guide member 9 through the guide channel 7, so as to flow back to the compressor oil pool.

[0069] In some embodiments, along the radial direction of the baffle 2, a plurality of reflux grooves 11 are provided at one end of the baffle 2 facing away from the rotor core 1, and the outlet of the guide channel 7 is arranged close to the baffle 2 relative to the inlet of the guide channel 7, and the outlet of the guide channel 7 is arranged relative to the reflux grooves 11. In this technical solution, the lubricating oil flowing out of the guide channel 7 flows to the inner wall of the stator through the reflux grooves 11, and finally flows back to the lower chamber of the compressor to provide lubrication. The guide channel 7 is provided on both sides of the internal connecting channel of the guide member 9, and the position of the guide channel 7 and the reflux groove 11 are matched, so that the refrigeration oil separated inside the guide member 9 flows along the guide channel 7-reflux groove 11 to the inner wall of the stator, and finally flows back to the lower chamber of the compressor to provide lubrication.

[0070] The present invention also provides a motor, comprising the above-mentioned rotor structure.

[0071] The present invention also provides a compressor, comprising the above-mentioned rotor structure.

[0072] In some embodiments, the compressor includes a shell. When one end of the guide member 9 is arranged on the baffle 2 and the other end of the guide member 9 is provided with a nozzle 10, the opening distance of the nozzle 10 outlet is L1, the maximum opening value of the nozzle 10 is L2, the time between the mixture being ejected from the nozzle 10 outlet and contacting the inner wall of the shell is t, the flow rate of the mixture is Q, and the cross-section of the rotor core 1 is taken as a horizontal plane. There is an angle β between the center line of the nozzle 10 and the horizontal plane. The straight-line distance from the nozzle 10 outlet to the inner wall of the shell is L, and the area of ​​the flow hole is S1, which satisfies, L1=(2*t*Q*L2*cos(-β)) / (L*S1).

[0073] The inlet area of ​​the guide member 9 connected to the flow hole on the rotor core 1 side is larger than the outlet area of ​​the nozzle 10 on the flat side. Through formula 1: V=Q / S, V: flow velocity; Q: flow rate; S: area, it can be seen that under the same flow rate, a smaller outlet area can increase the flow velocity of the oil-gas mixed fluid. The design of the outlet being smaller than the inlet can increase the kinetic energy and ensure that it can be sprayed onto the inner wall of the compressor casing; because the guide plate 12 will block a certain amount of gas flowability, the outlet area needs to be at least 1 / 2 of the inlet area. The rotor flow hole area is S1, so the initial outlet area is set to 0.5S1. At the same time, a flow rate regulating plate 13 and a flow rate self-regulating elastic member 14 are provided at the flow outlet. When the compressor is operated at different frequencies, the flow rate will change. At this time, the regulating plate 13 and the flow rate self-regulating elastic member 14 can follow up the change of the flow rate in real time to control the area of ​​the flow outlet; when the compressor is operated at a low frequency, the speed is low and the flow rate is small. At this time, the opening distance L1 of the nozzle 10 is small, and a stable and sufficient flow rate is maintained; when the compressor is operated at a high frequency, the flow rate is large. At this time, the opening distance L1 of the nozzle 10 is large, and a sufficient flow area is maintained to ensure the fluidity of the fluid; according to the flow rate formula and the distance formula, the relationship between the opening L1 and the flow rate Q should satisfy the following formula:

[0074] L1=(2*t*Q*L2*cos(-β)) / (L*S1)

[0075] Where: t refers to the time it takes for the fluid to spray onto the inner wall of the shell, and is generally required to be ≤1s;

[0076] Q refers to the fluid flow rate, which is related to the compressor displacement and operating frequency;

[0077] L2 refers to the maximum value of the nozzle opening setting;

[0078] β refers to the nozzle elevation angle, which is generally -30° to 0°;

[0079] L refers to the straight-line distance from the nozzle outlet to the inner wall of the shell;

[0080] S1 is the flow hole area of ​​the rotor core and rotor baffle;

[0081] In some embodiments, when one end of the guide member 9 is disposed on the baffle 2 and the other end of the guide member 9 is provided with a nozzle 10, the compressor includes a stator assembly 16, the rotor core 1 is sleeved in the stator assembly 16, the stator assembly 16 includes a stator frame and a stator core, the distance between the stator frame and the end of the stator core is H1, the distance between the nozzle 10 outlet and the end of the rotor core 1 is H2, and the height difference between the stator core and the rotor core 1 is K, which satisfies H2>H1+K. In this technical solution, the minimum distance between the stator frame and the end of the stator core is H1, and the minimum distance between the nozzle 10 outlet and the end of the rotor core 1 is H2;

[0082] In addition, the nozzle 10 and the connecting channel of the "7"-shaped guide member 9 are connected by a snap-fit ​​assembly method. It is not an integrated structure. Of course, an integrated structure can also be adopted. The nozzle 10 and the connecting channel can be replaced according to the different compressor displacement sizes and different operating pressure sizes to achieve rapid control of the flow rate of the oil-gas mixed fluid and improve the degree of commonality of parts.

[0083] In order to ensure that the fluid from the nozzle 10 can effectively reach the inner wall of the housing, after the stator assembly 16 and the rotor assembly are assembled, the bottom surface of the nozzle 10 outlet should be higher than the stator frame, requiring H2>H1+K;

[0084] H1: distance from the top of the frame to the end face of the stator core;

[0085] H2: distance from the bottom of the nozzle outlet to the end face of the rotor core;

[0086] K: specifies the height difference of the rotor core, generally 0.5mm-2.5mm;

[0087] The compressor of the present invention further includes a balancing block 15, a groove is provided on the balancing block 15, the guide member 9 is located in the groove, the balancing block 15 is arranged on the baffle 2, and the groove forms an avoidance position for the guide member 9. The balancing block 15 and the baffle 2 can be connected by rivets or other methods. Of course, one rivet can also be used to simultaneously install the balancing block 12, the mounting member 8 and the baffle 2 on the end surface of the rotor core 1. , including:

[0088] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A rotor structure, characterized in that: include: A rotor core (1), wherein the rotor core (1) has a plurality of flow holes, and an oil-gas separation component (3) is arranged on the rotor core (1), wherein the flow holes are connected to the oil-gas separation component (3), and the oil-gas separation component (3) can output the mixture in the flow holes in a radially outward direction of the rotor core (1).

2. The rotor structure according to claim 1, characterized in that: The oil-gas separation component (3) comprises a baffle (2) and a plurality of flow guides (9), wherein the baffle (2) is arranged on the rotor core (1), the baffle (2) is provided with a plurality of flow guide holes (4), the flow guide (9) is arranged on the baffle (2), the flow guide (9) has a connecting passage, the connecting passage is connected with the flow guide holes (4), along the flow direction of the mixture, the baffle (2) and the flow guide (9) are arranged in sequence, the flow guide holes (4) and the flow holes are arranged in one-to-one correspondence, and the flow guide holes (4) and the flow guide (9) are arranged in one-to-one correspondence.

3. The rotor structure according to claim 2, characterized in that: One end of the flow guide (9) is arranged on the baffle (2), the other end of the flow guide (9) is provided with a nozzle (10), and the flow guide hole (4) and the nozzle (10) are connected through the connecting channel.

4. The rotor structure according to claim 3, characterized in that: The inlet cross-sectional area of ​​the communication channel is larger than the outlet cross-sectional area of ​​the nozzle (10).

5. The rotor structure according to claim 3, characterized in that: The inner wall of the nozzle (10) is provided with an adjustment plate (13); one end of the adjustment plate (13) facing away from the nozzle (10) outlet is movably connected to the inner wall of the nozzle (10); the adjustment plate (13) and the inner wall of the nozzle (10) are connected via an elastic member (14); and the elastic member (14) is arranged close to the nozzle (10) outlet.

6. The rotor structure according to claim 2, characterized in that: A plurality of guide plates (12) are arranged along the inner wall of the guide member (9); along the flow direction of the mixture, the guide plates (12) are arranged at intervals on the inner wall of the guide member (9).

7. The rotor structure according to claim 6, characterized in that: The plurality of guide plates (12) are arranged in two rows on the inner wall of the guide member (9), the two rows of guide plates (12) are arranged in a staggered manner, and the guide member (9) extends in a direction away from the baffle (2).

8. The rotor structure according to claim 6, characterized in that: An included angle α is formed between the guide plate (12) and the inner wall of the guide member (9), and the value range of α is 40° to 60°.

9. The rotor structure according to claim 6, characterized in that: The guide member (9) is provided with a guide channel (7), the outlet of the guide channel (7) is opened on the outer wall of the guide member (9), the inlet of the guide channel (7) is opened on the inner wall of the guide member (9), the guide channel (7) has a plurality of inlets, and the inlet of the guide channel (7) is located on a side of the guide plate (12) away from the baffle plate (2), and the inlet of the guide channel (7) is arranged in a one-to-one correspondence with the guide plate (12).

10. The rotor structure according to claim 9, characterized in that: Along the radial direction of the baffle (2), a plurality of return grooves (11) are arranged at one end of the baffle (2) facing away from the rotor core (1), the outlet of the guide channel (7) is arranged close to the baffle (2) relative to the inlet of the guide channel (7), and the outlet of the guide channel (7) is arranged opposite to the return grooves (11).

11. A motor, characterized in that: A rotor structure comprising any one of claims 1 to 10.

12. A compressor, characterized in that: A rotor structure comprising any one of claims 1 to 10.

13. The compressor according to claim 12, characterized in that: The compressor comprises a shell. When one end of the guide member (9) is arranged on the baffle (2) and the other end of the guide member (9) is provided with a nozzle (10), the opening distance of the nozzle (10) outlet is L1, the maximum opening value of the nozzle (10) is L2, the time from the mixture being ejected from the nozzle (10) outlet to contacting the inner wall of the shell is t, the flow rate of the mixture is Q, the cross section of the rotor core (1) is taken as a horizontal plane, the center line of the nozzle (10) and the horizontal plane have an included angle β, the straight-line distance from the nozzle (10) outlet to the inner wall of the shell is L, and the area of ​​the flow hole is S1, which satisfies the following condition: L1=(2*t*Q*L2*cos(-β)) / (L*S1).

14. The compressor according to claim 12, characterized in that: When one end of the guide member (9) is arranged on the baffle (2) and the other end of the guide member (9) is provided with a nozzle (10), the compressor comprises a stator assembly (16), the rotor core (1) is sleeved in the stator assembly (16), the stator assembly (16) comprises a stator frame and a stator core, the distance between the stator frame and the end of the stator core is H1, the distance between the nozzle (10) outlet and the end of the rotor core (1) is H2, and the height difference between the stator core and the rotor core (1) is K, which satisfies H2>H1+K.

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