Rotor structure and synchronous reluctance machine

Abstract

The application discloses a rotor structure and a synchronous reluctance motor, and relates to the technical field of reluctance motors. The application comprises a driving shaft, a plurality of bending grooves are formed on the outer circumferential side of the driving shaft, and the driving shaft is subjected to shell drawing treatment; one end of the driving shaft is coaxially provided with a supporting shaft; the other end of the driving shaft is coaxially connected with an air inlet shaft cylinder; one end of the air inlet shaft cylinder is connected with the supporting shaft and is provided with an air outlet groove; the one end of the air inlet shaft cylinder is an opening and is provided with a protrusion; a tapered air inlet is formed on the end of the protrusion away from the air inlet shaft cylinder; and the small-diameter end of the tapered air inlet is smoothly connected along the end of the air inlet shaft cylinder. The application realizes air circulation by means of a wind power assembly, a driving shaft, a backflow air cavity and a heat dissipation air groove to dissipate heat of the driving shaft and the stator, and then the hot air is cooled by a liquid cooling circulation assembly, so that the stator and the rotor in the reluctance motor can be effectively prevented from increasing the aging speed due to high temperature, and the service life of the reluctance motor is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of reluctance motors, in particular to a rotor structure and a synchronous reluctance motor. BACKGROUND

[0002] A reluctance motor is a motor that operates based on the principle of minimizing magnetic resistance, and the core structure of the motor is composed of a stator and a rotor. The stator is wound with concentrated windings, and the rotor is composed of a magnetic material such as a silicon steel sheet. There is no permanent magnet or winding, and the motor has the advantages of simple structure, low cost, high reliability, and adaptability to high-speed operation. The reluctance motor drives the rotor to rotate by controlling the energization sequence and timing of the stator windings to change the magnetic field distribution.

[0003] However, in actual operation of the reluctance motor, especially under high-speed or high-temperature working conditions, significant magnetic hysteresis loss and eddy current loss will occur inside the rotor. These losses accumulate in the form of heat energy inside the rotor, causing the rotor temperature to rise sharply. Long-term high temperature not only reduces the efficiency of the motor, but also causes material thermal aging and degradation of magnetic properties, and even causes deformation of the rotor structure, seriously affecting the reliability and service life of the motor. High rotor temperature also increases the temperature of the stator, causing material thermal aging.

[0004] Therefore, the application provides a rotor structure and a synchronous reluctance motor. SUMMARY

[0005] The application aims to solve the problems in the background art and provides a rotor structure and a synchronous reluctance motor.

[0006] To achieve the above-mentioned purpose, the application specifically adopts the following technical solutions:

[0007] A rotor structure, comprising:

[0008] A drive shaft, a plurality of bending grooves are formed on the outer periphery of the drive shaft and the drive shaft is subjected to shell extraction, one end of the drive shaft is coaxially provided with a support shaft, the other end of the drive shaft is coaxially connected with an air inlet shaft cylinder, one end of the air inlet shaft cylinder is provided with an air outlet groove, one end of the air inlet shaft cylinder is open and provided with a protrusion, one end of the protrusion away from the air inlet shaft cylinder is provided with a tapered air port, and the small-diameter end of the tapered air port is connected with the end of the air inlet shaft cylinder in a smooth manner.

[0009] Further, the bending grooves are divided into groups, the bending grooves in the same group are linearly arrayed along the direction close to the axis of the drive shaft, the bending grooves in the multiple groups are circularly arrayed on the drive shaft, and the air outlet groove is formed between the adjacent two grooves of the same group of bending grooves.

[0010] A synchronous reluctance motor comprising the above rotor structure, further comprising a base, a machine shell is arranged on the base, a stator is installed in the machine shell, the drive shaft is arranged in the stator, and further comprising:

[0011] A ventilation cover is arranged on the base, a wind power assembly is arranged in the ventilation cover, the air inlet shaft cylinder is rotatably arranged in the ventilation cover, and the protruding block is arranged in the ventilation cover.

[0012] A liquid cooling circulation assembly is arranged on the base, and the liquid cooling circulation assembly and the machine shell form a heat dissipation air slot.

[0013] The machine shell is internally formed with a backflow air cavity, the backflow air cavity is kept in communication with the drive shaft through an exhaust slot, the backflow air cavity is in communication with the heat dissipation air slot, the wind power assembly drives air to flow into the drive shaft and then into the backflow air cavity through the exhaust slot, and finally the air is discharged from the heat dissipation air slot.

[0014] Further, a sleeve is coaxially arranged on the machine shell, the drive shaft is arranged in the sleeve and is attached to the inner wall of the sleeve on the outer periphery side, the support shaft is rotatably inserted into the sleeve, and a gap is left between the end of the drive shaft provided with the exhaust slot and the inner end surface of the sleeve to form the backflow air cavity. One end of the sleeve is open and the open end is in communication with the heat dissipation air slot.

[0015] Further, a planar spiral disc in the shape of a mosquito coil is arranged at one end of the machine shell close to the ventilation cover, the liquid cooling circulation assembly has a planar spiral cooling pipe, the planar spiral cooling pipe is opposite the spiral edge of the planar spiral disc to form the heat dissipation air slot, and a blocking plate is arranged on the inner side of the planar spiral cooling pipe to block the internal non-spiral cavity.

[0016] Further, the wind power assembly comprises a heat dissipation fan rotatably arranged in the ventilation cover, a rotating rod is rotatably arranged in the ventilation cover, and the rotating rod is coupled with the heat dissipation fan and the air inlet shaft cylinder. When the air inlet shaft cylinder rotates, the rotating rod and the heat dissipation fan rotate synchronously.

[0017] Further, the liquid cooling circulation assembly comprises an oil tank arranged on the base, an oil inlet pipe and an oil outlet pipe are in communication with the oil tank, one end of the planar spiral cooling pipe close to the center is in communication with the oil inlet pipe, the other end is in communication with the oil outlet pipe, a push oil rod is slidably arranged in the oil tank, a one-way valve is arranged on the oil inlet pipe, and a driving member is arranged in the oil tank to drive one end of the push oil rod to push into the oil inlet pipe.

[0018] Further, the driving member comprises a pendulum rod rotatably installed in the oil tank, two movable grooves are formed in the pendulum rod, a convex disc is coaxially installed on the heat dissipation fan, a column is eccentrically arranged on the convex disc, the column is slidably tangent to one of the movable grooves, and a forcing rod is arranged on the oil pushing rod, one end of the forcing rod is slidably tangent to the other movable groove.

[0019] Further, a plurality of cross grooves are formed in the two sides of the oil tank, the cross grooves are blocked by the heat dissipation fins at the edges, the heat dissipation fins are horizontally arranged in an n shape, a guide seat is installed on the base, two small-diameter cavities and one large-diameter cavity are arranged on the guide seat, the large-diameter cavity is located between the two small-diameter cavities and is in communication with each other, the guide seat and the heat dissipation fins form an open-ended air cavity, the two small-diameter cavities are in communication with the air cavities of the heat dissipation fins on the same side, and the large-diameter cavity is provided with a pressure boosting assembly for providing air pressure to the inside.

[0020] Further, the pressure boosting assembly comprises a piston plate slidably installed in the large-diameter cavity, a one-way exhaust hole is formed in the piston plate, a one-way sealing plate is installed at the communication position between the small-diameter cavity and the large-diameter cavity, a driving rod is hingedly connected to the piston plate, and a free end of the driving rod is hingedly connected to the column.

[0021] The beneficial effects of the present application are as follows:

[0022] The present application realizes air circulation by the cooperation of the wind power assembly, the return air cavity and the heat dissipation air groove to dissipate heat from the driving shaft and the stator, and the hot air can be cooled by the liquid cooling circulation assembly, so that the aging speed of the stator and the rotor in the reluctance motor due to high temperature can be effectively prevented, and the service life of the reluctance motor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the rotor structure of the present application;

[0024] Figure 2 is a schematic view of the rotor structure of the present application Figure 1 from another perspective;

[0025] Figure 3 is a schematic view of the rotor structure of the present application Figure 1 partial perspective view;

[0026] Figure 4 is a schematic view of the rotor structure of the present application after installation;

[0027] Figure 5 is a schematic view of the rotor structure of the present application Figure 4 partial perspective view;

[0028] Figure 6 is a schematic view of the rotor structure of the present application Figure 4Yet another partial perspective cutaway view;

[0029] Figure 7 The present application Figure 4 Another partial perspective cutaway view;

[0030] Figure 8 The present application Figure 4 Partial structural exploded view;

[0031] Figure 9 The present application Figure 8 Another perspective view;

[0032] Figure 10 The present application Partial structural exploded view;

[0033] Figure 11 The present application Figure 5 Enlarged view of structure at A;

[0034] Figure 12 The present application Figure 6 Enlarged view of structure at B.

[0035] Reference signs: 1, drive shaft; 101, bending groove; 102, support shaft; 103, air inlet shaft cylinder; 104, protruding block; 105, conical air inlet; 106, air outlet groove; 2, base; 3, casing; 4, ventilation cover; 5, wind power assembly; 501, heat dissipation fan; 502, rotating rod; 6, liquid cooling circulation assembly; 601, planar spiral cooling pipe; 602, oil tank; 603, oil inlet pipe; 604, oil outlet pipe; 605, oil pushing rod; 606, one-way valve; 607, blocking plate; 7, heat dissipation air groove; 8, backflow air cavity; 9, sleeve; 10, planar spiral disc; 11, driving member; 1101, pendulum rod; 1102, movable groove; 1103, protruding disc; 1104, column rod; 1105, forcing rod; 12, transverse groove; 13, heat dissipation fin; 14, guide seat; 15, small-diameter chamber; 16, large-diameter chamber; 17, pressure boosting assembly; 1701, piston plate; 1702, one-way air outlet hole; 1703, driving rod; 1704, one-way blocking plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0037] As Figures 1-3 shown, one embodiment of the present application proposes a rotor structure, which comprises:

[0038] The driving shaft 1 is made of magnetic material, which is consistent with the material of the existing silicon steel sheet, and the difference from the prior art is that the driving shaft 1 is integrally formed, and in addition, the driving shaft 1 is provided with a plurality of bending grooves 101 on the outer circumferential side, and is subjected to shell drawing treatment, as shown in Figures 1-2 The bending groove 101 has a horizontal section, the two ends of the horizontal section are extended outward and penetrate through the outer circumferential side of the driving shaft 1, the bending groove 101 penetrates through both ends of the driving shaft 1 but does not cause the driving shaft 1 to be separated, the horizontal section of the bending groove 101 does not penetrate through the driving shaft 1 and is close to the end face of the driving shaft 1, the bending groove 101 effectively increases the heat dissipation area, when the external air blows to the driving shaft 1, the external air can effectively cool the multiple surfaces of the driving shaft 1 through the bending groove 101, improve the cooling effect, and the air can also effectively cool the multiple surfaces of the driving shaft 1 when passing through the inside of the driving shaft 1, one end of the driving shaft 1 is coaxially provided with a support shaft 102, the support shaft 102 is a connecting part for connecting with the part to be driven, the other end of the driving shaft 1 is coaxially communicated with an air inlet shaft cylinder 103, the air inlet shaft cylinder 103 is connected with the support shaft 102, and the air inlet shaft cylinder 103 is provided with an air outlet groove 106 at one end, the external air entering the air inlet shaft cylinder 103 will pass through the inside of the driving shaft 1 and finally be discharged from the air outlet groove 106, to ensure the uniformity of heat dissipation, one end of the air inlet shaft cylinder 103 is an opening and is provided with a protrusion 104, the protrusion 104 is provided with a tapered air inlet 105 at the end away from the air inlet shaft cylinder 103, the small-diameter end of the tapered air inlet 105 is smoothly connected along the edge of the end of the air inlet shaft cylinder 103, and the design of the tapered air inlet 105 plays a role in collecting external air, thereby indirectly improving the heat dissipation effect.

[0039] As shown in Figure 3 In some embodiments, the bending grooves 101 are in multiple groups, the bending grooves 101 in the same group are linearly and linearly arrayed along the direction close to the axis of the driving shaft 1, and the multiple groups of bending grooves 101 are circularly arrayed on the driving shaft 1, and the air outlet groove 106 is arranged between the adjacent two grooves of the same group of bending grooves 101, preferably, as shown in Figure 2 The lengths of the horizontal sections of the bending grooves 101 in the same group are different, so that the two ends of the outwardly extended bending grooves 101 can penetrate through the outer circumferential side of the driving shaft 1, the multiple groups of bending grooves 101 further increase the heat dissipation area and effectively improve the heat dissipation effect of the driving shaft 1, and in this embodiment, the outermost part of the end face of the driving shaft 1 is also provided with an air outlet groove 106, so that when the air enters the driving shaft 1, the air can further dissipate heat to the inner wall of the driving shaft 1.

[0040] As shown in Figures 1-12 The application also discloses a synchronous reluctance motor, which comprises the above-mentioned rotor structure, further comprises a base 2, the base 2 is provided with a shell 3, the shell 3 is provided with a stator, the driving shaft 1 is arranged in the stator, and the synchronous reluctance motor further comprises:

[0041] A ventilation cover 4 is installed on the base 2, and a wind power assembly 5 is arranged in the ventilation cover 4. The air inlet shaft cylinder 103 is rotatably installed in the ventilation cover 4, and the protruding block 104 is located in the ventilation cover 4. The ventilation cover 4 is provided with a ventilation groove on the end face away from the shell 3, so that the wind power assembly 5 can suck external air into the air inlet shaft cylinder 103;

[0042] A liquid cooling circulation assembly 6 is installed on the base 2, and the liquid cooling circulation assembly 6 and the shell 3 form a heat dissipation air groove 7.

[0043] The shell 3 is provided with a backflow air cavity 8, which is in communication with the driving shaft 1 through the exhaust groove 106. The backflow air cavity 8 is in communication with the heat dissipation air groove 7. The wind power assembly 5 drives the air to flow into the driving shaft 1 and then into the backflow air cavity 8 through the exhaust groove 106, and finally, the air is discharged from the heat dissipation air groove 7. Specifically, the heat dissipation air groove 7 is located between the ventilation cover 4 and the shell 3. When the wind power assembly 5 transports air into the air inlet shaft cylinder, the air enters the driving shaft 1, thereby completing the heat dissipation of the driving shaft 1. When the flowing air flows out of the exhaust groove 106, the air that absorbs part of the heat enters the backflow air cavity 8. The air in the backflow air cavity 8 again dissipates heat from the outer wall of the driving shaft 1, and then the air in the backflow air cavity 8 enters the heat dissipation air groove 7. The liquid cooling circulation assembly 6 dissipates heat from the hot air in the heat dissipation air groove 7, thereby preventing the hot air in the heat dissipation air groove 7 from being directly discharged to the outside, causing the temperature of the ventilation cover 4 and the shell 3 to rise. Since the stator is installed in the shell 3, the temperature rise of the shell 3 will cause the temperature of the stator to rise. Therefore, reducing the temperature of the shell 3 can effectively reduce the temperature of the stator, and preventing the temperature of the outside of the ventilation cover 4 from being too high can effectively prevent the temperature of the inside of the ventilation cover 4 from being too high. After the air enters the ventilation cover 4, the temperature of the air rises, which affects the subsequent heat dissipation effect. Moreover, discharging the air after heat dissipation from between the shell 3 and the ventilation cover 4 can prevent the flowing air from blowing towards the support shaft 102. When the support shaft 102 is connected to some materials with good heat conduction effect or when a worker checks the connection of the support shaft 102, the flowing air can prevent the worker or some components in front of the support shaft 102 from being affected.

[0044] As Figure 2 and Figure 6As shown in the drawings, in some embodiments, the casing 3 is coaxially provided with a sleeve 9, the driving shaft 1 is located in the sleeve 9 and the outer periphery side of the driving shaft 1 is attached to the inner wall of the sleeve 9, the support shaft 102 is rotatably inserted into the sleeve 9, and the end of the driving shaft 1 provided with the exhaust groove 106 is left with a gap between the inner end surface of the sleeve 9 to form the backflow air cavity 8. The end of the sleeve 9 is open and the open end is communicated with the heat dissipation air groove 7, that is, when the flowing air passes through the driving shaft 1 and the exhaust groove 106, the flowing air will first enter the gap between the exhaust groove 106 and the end surface of the sleeve 9. Since the outer periphery side of the driving shaft 1 is attached to the inner wall of the sleeve 9, the flowing air will directly pass through the plurality of bending grooves 101 outside the driving shaft 1, thereby effectively utilizing the bending grooves 101 to increase the heat dissipation area and improve the heat dissipation effect, so as to sufficiently dissipate heat from the outer periphery side of the driving shaft 1. Preferably, the sleeve 9 can be made of a heat conductive material, such as copper, because the outer periphery side of the sleeve 9 is close to the winding on the stator, and the winding can also be cooled, because the winding will also generate a certain amount of heat after being energized, thereby further improving the service life of the stator.

[0045] As shown in the drawings, Figure 6 and Figure 9 As shown in the drawings, in some embodiments, the end of the casing 3 close to the ventilation cover 4 is provided with a planar spiral disc 10 in the shape of a mosquito coil, and the liquid cooling circulation assembly 6 has a planar spiral cooling pipe 601 which is opposite to the spiral edge of the planar spiral disc 10 to form the heat dissipation air groove 7, so that the heat dissipation air groove 7 is in the shape of a planar spiral, thereby increasing the time for which the hot air stays in the heat dissipation air groove 7. The inner side of the planar spiral cooling pipe 601 is provided with a blocking plate 607 to block the internal non-spiral cavity. After the hot air passes through the backflow air cavity 8, the hot air will enter between the planar spiral disc 10 and the planar spiral cooling pipe 601. The hot air will first concentrate at the position close to the axis of the planar spiral disc 10, and then the hot air will gradually flow from the inside of the heat dissipation air groove 7 to the outside in the form of a spiral, and finally flow to the outside. In this process, because the air in the heat dissipation air groove 7 is always in contact with the planar spiral cooling pipe 601, and the design of the planar spiral shape of the heat dissipation air groove 7 increases the time for which the hot air stays in the heat dissipation air groove 7, thereby further improving the cooling of the hot air.

[0046] As shown in the drawings, Figure 4 and Figure 6 As shown in the drawings, in some embodiments, the wind power assembly 5 includes a heat dissipation fan 501 rotatably installed in the ventilation cover 4 through a rotating shaft, and a rotating rod 502 is rotatably installed in the ventilation cover 4, and the rotating rod 502 is coupled with the heat dissipation fan 501 and the air inlet shaft cylinder 103. Specifically, as shown in the drawings, Figure 6As shown, the rotating rod 502 and the rotating shaft of the heat dissipation fan 501 are installed with a belt wheel assembly, and the rotating rod 502 and the air inlet shaft cylinder 103 are also installed with a belt wheel assembly, so when the air inlet shaft cylinder 103 rotates, the rotating rod 502 and the heat dissipation fan 501 rotate synchronously, so that no additional driving force is needed to drive the heat dissipation fan 501, unlike the prior art of directly connecting the shaft rod of the rotor with the heat dissipation fan 501, this coupling connection not only ensures the rotation of the heat dissipation fan 501, but also ensures that the heat dissipation fan 501 can deliver flowing air into the air inlet shaft cylinder 103.

[0047] As shown in the drawings, Figures 5-6 As shown in the drawings, in some embodiments, the liquid cooling circulation assembly 6 includes an oil tank 602 arranged on the base 2, cooling oil is poured into the oil tank 602, the oil tank 602 is communicated with an oil inlet pipe 603 and an oil outlet pipe 604, the planar spiral cooling pipe 601 is communicated with the oil inlet pipe 603 at one end near the center and communicated with the oil outlet pipe 604 at the other end, the oil tank 602 is slidably installed with an oil pushing rod 605, the oil inlet pipe 603 is installed with a one-way valve 606, and the oil tank 602 is installed with a driving member 11, which drives the one end of the oil pushing rod 605 to push into the oil inlet pipe 603, that is, the oil in the oil tank 602 can be pushed into the oil inlet pipe 603 by the driving rod 1703, and the one-way valve 606 can prevent the oil in the oil inlet pipe 603 from flowing back, so that when the oil pushing rod 605 moves horizontally and reciprocally, the oil in the oil inlet pipe 603 is transported into the planar spiral cooling pipe 601, and after the oil in the planar spiral cooling pipe 601 cools the hot air in the heat dissipation air groove 7, the oil absorbs the temperature and enters the oil outlet pipe 604, and then reenters the oil tank 602, preferably, the oil inlet pipe 603, the oil outlet pipe 604 and the liquid cooling circulation assembly 6 are made of heat-conducting materials (such as copper), and the oil tank 602 can be made of copper, so that the outside air can effectively cool the cooling oil in the oil tank 602.

[0048] As shown in the drawings, Figure 6 and Figure 7As shown in the drawings, in some embodiments, the driving member 11 includes a pendulum rod 1101 rotatably mounted at one end in the oil tank 602, two movable grooves 1102 are formed in the pendulum rod 1101, a convex disc 1103 is coaxially mounted on the rotating shaft of the cooling fan 501, a column 1104 is eccentrically arranged on the convex disc 1103, the column 1104 is slidingly tangent to one of the movable grooves 1102, a forcing rod 1105 is arranged on the oil pushing rod 605, one end of the forcing rod 1105 is slidingly tangent to the other movable groove 1102. When the cooling fan 501 rotates, it will drive the column 1104 arranged on the convex disc 1103 to rotate eccentrically. Because the column 1104 is slidingly tangent to one of the movable grooves 1102, the pendulum rod 1101 will swing back and forth within a certain angle at this time. At this time, the movable groove 1102 on the pendulum rod 1101 will also move. Because the forcing rod 1105 is located in the other movable groove 1102, the reciprocating rotation of the pendulum rod 1101 will drive the oil pushing rod 605 to move horizontally and reciprocally, so that the cooling oil in the oil tank 602 can be circulated without additional driving force, thereby reducing unnecessary driving member 11 and indirectly reducing heat sources.

[0049] As shown in the drawings, Figure 7 and Figure 8 As shown in the drawings, in some embodiments, a plurality of cross grooves 12 are formed through the two sides of the oil tank 602, the cross grooves 12 are closed by the heat dissipation fins 13 at the edges, the heat dissipation fins 13 are n-shaped and horizontally arranged, a guide seat 14 is mounted on the base 2, the heat dissipation fins 13 can be made of silver material and have good heat conductivity, and the n-shaped design of the heat dissipation fins 13 effectively increases the heat dissipation area, thereby sufficiently improving the cooling of the cooling oil in the oil tank 602. Two small-diameter chambers 15 and one large-diameter chamber 16 are arranged on the guide seat 14, the large-diameter chamber 16 is located between the two small-diameter chambers 15 and is in communication with each other, the guide seat 14 and the heat dissipation fins 13 form an open-ended air chamber, the two small-diameter chambers 15 are in communication with the air chambers of the plurality of heat dissipation fins 13 on the same side, and the large-diameter chamber 16 is provided with a supercharging assembly 17 for providing air pressure to the inside of the large-diameter chamber 16. That is, the flowing air in the large-diameter chamber 16 is generated by the supercharging assembly 17, and the air speed is increased after entering the two small-diameter chambers 15. Because the small-diameter chambers 15 are in communication with the air chambers of the heat dissipation fins 13, the rapidly flowing air will contact the plurality of heat dissipation fins 13 to cool them, thereby improving the cooling effect of the cooling oil in the oil tank 602.

[0050] As shown in the drawings, Figure 7 , Figure 10 and Figure 11 As shown in the drawings, in some embodiments, the supercharging assembly 17 includes a piston plate 1701 slidingly mounted vertically in the large-diameter chamber 16, a one-way exhaust hole 1702 is formed in the piston plate 1701, preferably, the diameter of the one-way exhaust hole 1702 is designed to be as large as possible, and the one-way exhaust hole 1702 is arranged at the bottom of the large-diameter chamber 16.Figure 10 As shown, the inner periphery of the one-way exhaust hole 1702 is provided with a plurality of triangular elastic metal sheets, which has a similar structure principle to the sealing structure at the bottle opening of a screaming beverage bottle. This structure can effectively reduce the pressure required for opening the one-way exhaust hole 1702. Of course, the structure of the existing one-way intake valve can also be used. The one-way sealing sheet 1704 is installed at the communication position between the small-diameter chamber 15 and the large-diameter chamber 16. The driving rod 1703 is hinged to the piston plate 1701. The free end of the driving rod 1703 is hinged to the columnar rod 1104. When the columnar rod 1104 rotates eccentrically, because the two ends of the driving rod 1703 are respectively hinged to the piston plate 1701 and the columnar rod 1104, the columnar rod 1104 will drive the piston plate 1701 to move vertically reciprocatingly through the driving rod 1703 when continuously rotating, so that additional driving force is not required to drive the piston plate 1701 to move. When the piston plate 1701 moves from top to bottom, the one-way exhaust hole 1702 is in a sealing state at this time, so that the air inside the large-diameter chamber 16 is pressed when the piston plate 1701 moves downward, thereby forcing the one-way sealing sheet 1704 to bend. Specifically, the top of the large-diameter chamber 16 is open. The cross-sectional width and length of the large-diameter chamber 16 are both larger than those of the small-diameter chamber 15. Therefore, the flow rate of the air inside the large-diameter chamber 16 will increase after entering the small-diameter chamber 15, so that each heat dissipation fin 13 can fully dissipate heat. When the piston plate 1701 moves upward, the one-way sealing sheet 1704 will be blocked from the communication between the large-diameter chamber 16 and the small-diameter chamber 15 due to the elastic deformation of the one-way sealing sheet 1704, so that the outside air passes through the one-way exhaust hole 1702, so that the piston plate 1701 and the bottom end of the large-diameter chamber 16 are filled with air, so as to increase the wind pressure when the piston plate 1701 moves downward next time.

[0051] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A synchronous reluctance machine, characterized by The rotor structure comprises a driving shaft, a plurality of bending grooves are arranged on the outer periphery of the driving shaft, and the driving shaft is subjected to shell extraction treatment; one end of the driving shaft is coaxially provided with a supporting shaft; the other end of the driving shaft is coaxially connected with an air inlet shaft cylinder; the air inlet shaft cylinder is connected with the supporting shaft, and the air inlet shaft cylinder is provided with an air outlet groove at one end; the air inlet shaft cylinder is open at one end and is provided with a protrusion; a tapered air port is arranged at the end of the protrusion away from the air inlet shaft cylinder; the small-diameter end of the tapered air port is connected with the end of the air inlet shaft cylinder in a smooth manner; the bending grooves are arranged in multiple groups; the bending grooves in the same group are linearly arranged along the direction close to the axis of the driving shaft; the multiple groups of bending grooves are circularly arranged on the driving shaft; and the air outlet groove is arranged between two adjacent grooves in the same group. The base is further provided with a casing, a stator is arranged in the casing, and the driving shaft is arranged in the stator. A ventilation cover is arranged on the base, a wind power assembly is arranged in the ventilation cover, the air inlet shaft cylinder is rotatably arranged in the ventilation cover, and the protrusion is arranged in the ventilation cover. A liquid cooling circulation assembly is arranged on the base, and the liquid cooling circulation assembly and the casing form a heat dissipation air channel. The casing is provided with a backflow air chamber, the backflow air chamber is in communication with the driving shaft through the air outlet groove, the backflow air chamber is in communication with the heat dissipation air channel, the wind power assembly drives air to flow into the driving shaft and then into the backflow air chamber through the air outlet groove, and finally the air is discharged from the heat dissipation air channel. The end of the casing close to the ventilation cover is provided with a planar spiral disc, the liquid cooling circulation assembly is provided with a planar spiral cooling pipe, the planar spiral cooling pipe is matched with the spiral edge of the planar spiral disc to form the heat dissipation air channel, and a blocking plate is arranged on the inner side of the planar spiral cooling pipe to block the non-spiral cavity in the interior.

2. The synchronous reluctance machine of claim 1, wherein, A sleeve is coaxially arranged on the casing, the driving shaft is arranged in the sleeve and is attached to the inner wall of the sleeve, the supporting shaft is rotatably arranged in the sleeve, and a gap is formed between the end of the driving shaft provided with the air outlet groove and the inner end face of the sleeve to form the backflow air chamber.

3. The synchronous reluctance machine of claim 2, wherein, The end of the sleeve is open and is in communication with the heat dissipation air channel.

4. The synchronous reluctance machine of claim 3, wherein, The wind power assembly comprises a heat dissipation fan rotatably arranged in the ventilation cover, a rotating rod is rotatably arranged in the ventilation cover, the rotating rod is coupled with the heat dissipation fan and the air inlet shaft cylinder, and when the air inlet shaft cylinder rotates, the rotating rod and the heat dissipation fan rotate synchronously.

5. The synchronous reluctance machine of claim 4, wherein, The liquid cooling circulation assembly comprises an oil tank arranged on the base, an oil inlet pipe and an oil outlet pipe are in communication with the oil tank, one end of the planar spiral cooling pipe close to the center is in communication with the oil inlet pipe, the other end is in communication with the oil outlet pipe, a push oil rod is slidably arranged in the oil tank, a one-way valve is arranged on the oil inlet pipe, a driving member is arranged in the oil tank, and one end of the push oil rod is pushed into the oil inlet pipe by the driving member. The driving member comprises a pendulum rod rotatably arranged in the oil tank, two movable grooves are arranged on the pendulum rod, a convex disc is coaxially arranged on the heat dissipation fan, a column rod is eccentrically arranged on the convex disc, the column rod is slidably tangent to one of the movable grooves, and a forcing rod is arranged on the push oil rod, one end of the forcing rod is slidably tangent to the other movable groove.

6. The synchronous reluctance machine of claim 5, wherein, The oil tank is provided with a plurality of cross grooves on both sides, the cross grooves are closed by the radiating fins at the edges, the radiating fins are n-shaped and horizontally arranged, a guide base is arranged on the base, two small-diameter cavities and one large-diameter cavity are arranged on the guide base, the large-diameter cavity is located between the two small-diameter cavities and is in communication with each other, the guide base and the radiating fins form a wind cavity with open ends, the two small-diameter cavities are in communication with the wind cavities of the radiating fins on the same side, and the large-diameter cavity is provided with a pressure increasing assembly for providing air pressure to the inside.

7. The synchronous reluctance machine of claim 6, wherein, The pressure increasing assembly comprises a piston plate vertically and slidingly arranged in the large-diameter cavity, a one-way exhaust hole is arranged in the piston plate, a one-way sealing plate is arranged at the communication position of the small-diameter cavity and the large-diameter cavity, a driving rod is hingedly connected to the piston plate, and the free end of the driving rod is hingedly connected to the column rod.

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