High-torque permanent magnet motor with self-maintenance function

Abstract

The invention relates to the related technical field of high-torque permanent magnet motors, and discloses a high-torque permanent magnet motor with a self-maintenance function, which comprises a shell, a maintenance cover is mounted at one end of the shell, a rotating shaft is rotatably arranged in the middle of the interior of the shell, one end of the rotating shaft extends into the maintenance cover, and the other end of the rotating shaft extends out of the shell. A maintenance assembly is arranged in the maintenance cover, an annular shell is arranged on the inner wall of the shell, a stator is arranged on the inner side of the annular shell, and a rotor is fixedly arranged on the outer side of the rotating shaft; a first movable plate moves back and forth to drive a second ejector rod and a second annular plate to move back and forth, and the second annular plate moves back and forth to enable cooling oil to circularly flow in a shell and a second annular cavity, so that a stator and a rotor are continuously cooled; and the cooling oil accumulated in the shell is not accumulated too much, so that the resistance of the rotor is not too large, and the normal rotation of the rotor is prevented from being influenced.

Description

Technical Field

[0001] The present invention belongs to the technical field related to high-torque permanent magnet motors, and more specifically, particularly relates to a high-torque permanent magnet motor with a self-maintenance function. Background Art

[0002] High-torque permanent magnet motors have increasingly stringent requirements on the power density of the motors. Existing high-torque permanent magnet motors mostly use casing water cooling to dissipate heat from the motors. This cooling method requires the heat source inside the motor to be transferred to the outside through layers of materials and then carried away by the water channel. The motor windings cannot be cooled directly, resulting in temperature accumulation, especially the motor end windings cannot contact the casing water channel, resulting in excessive temperature. Therefore, it is necessary to directly cool the heat source to improve the cooling efficiency. However, the high-torque permanent magnet motors in the prior art have the following defects: In the prior art, the motor rotor in a high-torque permanent magnet motor is an important component of the motor. Traditional water cooling cannot directly contact the motor, that is, a water-cooled jacket is used to transfer the heat of the motor rotor to the motor stator, and the heat of the motor stator is transferred to the water jacket, which is then taken away by the liquid. However, in high-power density motors with relatively high heat dissipation requirements, the water cooling method is not efficient in taking away heat due to the transfer thermal resistance and the poor thermal conductivity of the motor rotor, and the internal temperature of the motor cannot be effectively reduced in a timely manner.

[0003] In the prior art, the cooling assembly in the high-torque permanent magnet motor adopts oil cooling and water cooling to dissipate the heat inside the motor. However, the oil-immersed motor, that is, the motor is immersed in oil, and the heat is evenly transferred to the water jacket wall by the heat transfer oil. However, since the rotor of this structure runs in the oil, its resistance loss is large, the energy loss is large, and the heat generation may increase; and the cooling oil cannot flow in the motor, thereby affecting the cooling and maintenance effect of the cooling oil on the motor.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a high-torque permanent magnet motor with self-maintenance function is provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0005] The present invention provides a high-torque permanent magnet motor with a self-maintenance function, which is used to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the high torque permanent magnet motor with self-maintenance function of the present invention are achieved by the following specific technical means: A high-torque permanent magnet motor with a self-maintenance function comprises a shell, a maintenance cover is installed at one end of the shell, a rotating shaft is rotatably arranged in the middle of the shell, one end of the rotating shaft extends to the inside of the maintenance cover, and the other end of the rotating shaft extends to the outside of the shell, a maintenance assembly is arranged inside the maintenance cover, an annular shell is arranged on the inner wall of the shell, a stator is arranged on the inner side of the annular shell, and a rotor is fixedly arranged on the outer side of the rotating shaft; the maintenance assembly comprises a cylinder, the cylinder is fixed inside the maintenance cover, a first fixing ring and a second fixing ring are fixedly arranged on one side of the cylinder, and the inner side of the cylinder is fixed by the first fixing ring. The fixed ring and the second fixed ring are separated into a first annular cavity, a second annular cavity, and a third annular cavity. A first movable plate is slidably provided on the other side of the interior of the cylinder. A first annular plate is slidably provided inside the first annular cavity, a second annular plate is slidably provided inside the second annular cavity, and a third annular plate is slidably provided inside the third annular cavity. A plurality of connecting pipes are connected between the first annular cavity and the second annular cavity, a first one-way valve is connected between the inner lower side of the shell and the second annular cavity, a spray valve is connected between the inner upper side of the shell and the second annular cavity, and a plurality of first soft rubber fins are provided in a circular array on one side of the second annular plate.

[0007] A further technical solution is that a fixed block is fixed on the outer side of the rotating shaft, and the fixed block slides axially with the inner side of the first movable plate, and the inner side of the first movable plate is in sliding contact with the outer side of the rotating shaft, and the inner wall of the cylinder is symmetrically provided with two arc-shaped grooves, and two first sliding blocks are respectively fixed on both sides of the first movable plate, and the two first sliding blocks are respectively in sliding contact in the two arc-shaped grooves, and the two arc-shaped grooves are connected to each other at the head and tail to form a wavy groove structure.

[0008] According to a further technical solution, a first push rod is fixedly connected between one side of the first annular plate and one side of the first movable plate, a second push rod is fixedly connected between one side of the second annular plate and one side of the first movable plate, and a third push rod is fixedly connected between one side of the third annular plate and one side of the first movable plate.

[0009] A further technical solution is that a fourth annular plate is provided in an annular sliding manner on the inner wall of the first annular cavity, a second slider is fixedly provided on the outer side of the first annular plate, the second slider slides in contact with the inner wall of the fourth annular plate, a plurality of second movable plates are provided in a circular array for sliding on one side of the first annular plate, and a connecting plate is connected between one side of each second movable plate and the inner wall of the fourth annular plate.

[0010] According to a further technical solution, a third slider is fixedly provided at one end of each of the second movable plates, each of the third sliders slides within one side of the first annular plate, one end of each of the connecting plates is rotatably connected to the inner wall of the fourth annular plate, and the other end of each of the connecting plates is rotatably connected to one side of the second movable plate.

[0011] According to a further technical solution, a diamond-shaped elastic member is provided on one side of each of the second movable plates, two connecting blocks are fixedly provided on both sides of each of the diamond-shaped elastic members, and two stirring plates are fixedly provided on one end of each pair of connecting blocks away from each other.

[0012] According to a further technical solution, two second soft rubber fins are respectively connected between the two ends of each stirring plate and the two sides of the diamond-shaped elastic member.

[0013] According to a further technical solution, an annular block is fixedly provided on the outer side of the fourth annular plate, and the annular block slides in an annular manner in the inner wall of the cylinder.

[0014] According to a further technical solution, a spiral plate is fixedly provided inside the annular shell, and a spiral channel is formed inside the annular shell through the spiral plate.

[0015] According to a further technical solution, a second one-way valve is connected between the first annular cavity and one end of the spiral channel, a water outlet pipe is provided at the other end of the spiral channel, a water inlet pipe is provided at one side of the first annular cavity, a solenoid valve is provided at one side of the shell, and the interior of the shell is connected to the oil pump through the solenoid valve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The high-torque permanent magnet motor with a self-maintenance function of the present invention is provided with a second annular plate, a second push rod, a spray valve, and a first one-way valve. The first movable plate moves away from the shell to drive the second annular plate and the second push rod to move. The movement of the second annular plate sucks the cooling oil in the shell into the second annular cavity through the first one-way valve, so that the heat on the stator and the rotor enters the second annular cavity along with the cooling oil; and the first movable plate moves close to the shell to drive the second push rod and the second annular plate to move. The movement of the second annular plate sprays the cooling oil in the second annular cavity onto the rotor and the stator through the spray valve, so as to cool the stator and the rotor, so that the first movable plate moves back and forth to drive the second push rod and the second annular plate to move back and forth, and the second annular plate moves back and forth to cause the cooling oil to circulate in the shell and the second annular cavity, so as to continuously cool the stator and the rotor; and the cooling oil accumulated in the shell will not accumulate too high, so it will not cause excessive resistance of the rotor, thereby avoiding affecting the normal rotation of the rotor. Through the arrangement of the first soft rubber fins, the rotation of the first movable plate drives the second push rod and the second annular plate to rotate, and the rotation of the second annular plate drives the first soft rubber fins to rotate. The rotation of the first soft rubber fins stirs and mixes the cooling oil in the second annular cavity, which is beneficial to quickly cool down the cooling oil in the second annular cavity, so as to facilitate cooling and maintenance of the stator and the rotor.

[0017] The high torque permanent magnet motor with self-maintenance function of the present invention, through the arrangement of the first annular cavity, the connecting pipe, and the third annular cavity, the coolant enters the first annular cavity through the water inlet pipe, and after the first annular cavity is filled with the coolant, the coolant enters the third annular cavity through a plurality of connecting pipes, so that the coolant in the first annular cavity and the third annular cavity performs a dual cooling effect on the inner and outer sides of the cooling oil in the second annular cavity, which is conducive to rapidly cooling the cooling oil in the second annular cavity; and the coolant in the first annular cavity flows in a plurality of connecting pipes, so as to improve the cooling effect of the cooling oil in the second annular cavity, promote the rapid cooling of the cooling oil in the second annular cavity, and keep the cooling oil continuously cooling the stator and the rotor. Then, through the arrangement of the third annular plate and the third push rod, the first movable plate moves back and forth to drive the third annular plate and the third push rod to move back and forth, and the third annular plate moves back and forth to circulate the coolant in the third annular cavity in the first annular cavity and the third annular cavity, and the coolant circulates in a plurality of connecting pipes, so as to maintain the rapid cooling effect on the cooling oil in the second annular cavity.

[0018] The present invention provides a high-torque permanent magnet motor with a self-maintenance function. Through the arrangement of a spiral channel, a first annular plate, a first push rod, and a second one-way valve, the first movable plate approaches the shell to drive the first annular plate and the first push rod to move. The first annular plate moves to allow the coolant in the first annular cavity to enter the spiral channel through the second one-way valve. The coolant flows in the spiral channel to cool the cooling oil in the shell. The coolant flows in a spiral in the spiral channel to extend the travel of the coolant in the annular shell, which is beneficial to improving the cooling effect on the cooling oil in the shell. The coolant in the spiral channel is discharged through a water outlet pipe, and the first movable plate moves away from the shell to drive the first annular plate and the first push rod to move. The first annular plate moves to suck new coolant into the first annular cavity through the water inlet pipe, so as to continuously cool the cooling oil in the shell and the second annular cavity, thereby improving the cooling and maintenance effect of the cooling oil on the stator and the rotor.

[0019] The high-torque permanent magnet motor with self-maintenance function of the present invention, through the arrangement of diamond-shaped elastic parts, connecting blocks, and stirring plates, the first movable plate rotates to drive the first push rod and the first annular plate to rotate, the first annular plate rotates through the second slider to drive the fourth annular plate to rotate, the fourth annular plate rotates through the connecting plate to drive the second movable plate to rotate, and the second movable plate rotates to drive the diamond-shaped elastic parts, connecting blocks, and stirring plates to rotate, so as to stir and mix the coolant in the first annular cavity, so that the coolant in the first annular cavity is heated evenly, thereby maintaining the cooling effect on the cooling oil. Then, through the arrangement of the connecting plate and the second movable plate, the first annular plate moves back and forth horizontally to drive the second movable plate to move back and forth horizontally, and the connecting plate rotates, so that the second movable plate and the diamond-shaped elastic parts, connecting blocks, and stirring plates move back and forth vertically, and a plurality of diamond-shaped elastic parts, connecting blocks, and stirring plates move back and forth vertically and rotate, which is conducive to improving the stirring effect on the coolant in the first annular cavity. Finally, through the setting of the second soft rubber fin, the vertical movement of the second movable plate drives the vertical movement of the diamond-shaped elastic part, and the diamond-shaped elastic part moves vertically and contacts the outer side of the first fixed ring, thereby squeezing and deforming the diamond-shaped elastic part. The deformation of the diamond-shaped elastic part causes the two connecting blocks and the stirring plate to move away from each other. The two stirring plates move away from each other to stretch the two pairs of second soft rubber fins respectively, thereby expanding the contact area between the second soft rubber fins and the coolant, and further improving the stirring effect on the coolant in the first annular cavity, so as to continuously cool the cooling oil in the shell and the second annular cavity, thereby improving the cooling and maintenance effect of the cooling oil on the stator and rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is an isometric structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at D in the middle; Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at E in the middle; Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure at the middle BB; Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at F in the middle; Figure 8 It is a schematic diagram of the top view structure of the present invention; Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure at CC in the middle.

[0023] Description of reference numerals: Shell 10, maintenance cover 11, rotating shaft 12, annular shell 13, spiral plate 14, spiral channel 15, stator 16, rotor 17, cylinder 18, first movable plate 19, fixed block 20, first slider 21, arc-shaped slide groove 22, first fixed ring 23, second fixed ring 24, first annular cavity 25, second annular cavity 26, third annular cavity 27, connecting pipe 28, water outlet pipe 29, water inlet pipe 30, second one-way valve 31, first annular plate 32, first push rod 33, second annular plate 34, second push rod 35, third annular plate 36, third push rod 37, spray valve 38, first one-way valve 39, first soft rubber fin 40, fourth annular plate 41, annular block 42, second slider 43, third slider 44, second movable plate 45, connecting plate 46, diamond elastic member 47, connecting block 48, stirring plate 49, second soft rubber fin 50, supporting foot 51, solenoid valve 52. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] As attached Figure 1 To Attachment Fig. 9 As shown: The invention provides a high-torque permanent magnet motor with a self-maintenance function.

[0028] See attached Figure 1 To Attachment Fig. 9, including a shell 10, a maintenance cover 11 is installed at one end of the shell 10, a rotating shaft 12 is rotatably arranged in the middle of the shell 10, one end of the rotating shaft 12 extends to the inside of the maintenance cover 11, and the other end of the rotating shaft 12 extends to the outside of the shell 10, a maintenance assembly is arranged inside the maintenance cover 11, an annular shell 13 is arranged on the inner wall of the shell 10, a stator 16 is arranged on the inner side of the annular shell 13, and a rotor 17 is fixedly arranged on the outer side of the rotating shaft 12; the maintenance assembly includes a cylinder 18, the cylinder 18 is fixed inside the maintenance cover 11, a first fixing ring 23 and a second fixing ring 24 are fixedly arranged on one side of the cylinder 18, and the inner side of the cylinder 18 is separated from the second fixing ring 24 by the first fixing ring 23 A first annular cavity 25, a second annular cavity 26 and a third annular cavity 27 are provided. A first movable plate 19 is slidably provided on the other side of the cylinder 18. A first annular plate 32 is slidably provided inside the first annular cavity 25. A second annular plate 34 is slidably provided inside the second annular cavity 26. A third annular plate 36 is slidably provided inside the third annular cavity 27. A plurality of connecting pipes 28 are connected between the first annular cavity 25 and the second annular cavity 26. A first one-way valve 39 is connected between the inner lower side of the shell 10 and the second annular cavity 26. A spray valve 38 is connected between the inner upper side of the shell 10 and the second annular cavity 26. A plurality of first soft rubber fins 40 are provided in a circular array on one side of the second annular plate 34.

[0029] Preferably, see Attachment Figure 6 To Attachment Figure 7 A fixed block 20 is fixed on the outer side of the rotating shaft 12, and the fixed block 20 slides axially with the inner side of the first movable plate 19. The inner side of the first movable plate 19 is in sliding contact with the outer side of the rotating shaft 12. Two arc-shaped slide grooves 22 are symmetrically provided on the inner wall of the cylinder 18. Two first sliders 21 are fixed on both sides of the first movable plate 19, and the two first sliders 21 are in sliding contact in the two arc-shaped slide grooves 22, respectively. The two arc-shaped slide grooves 22 are connected to each other at the head and tail to form a wave-shaped slide groove structure.

[0030] Preferably, see Attachment Figure 3 To Attachment Figure 5 A first push rod 33 is fixedly connected between one side of the first annular plate 32 and one side of the first movable plate 19, a second push rod 35 is fixedly connected between one side of the second annular plate 34 and one side of the first movable plate 19, and a third push rod 37 is fixedly connected between one side of the third annular plate 36 and one side of the first movable plate 19.

[0031] Preferably, see Attachment Figure 3 To Attachment Figure 5A fourth annular plate 41 is provided in an annular sliding manner on the inner wall of the first annular cavity 25, a second slider 43 is fixedly provided on the outer side of the first annular plate 32, the second slider 43 slides in contact with the inner wall of the fourth annular plate 41, and a plurality of second movable plates 45 are provided in a circular array for sliding on one side of the first annular plate 32, and a connecting plate 46 is connected between one side of each second movable plate 45 and the inner wall of the fourth annular plate 41.

[0032] Preferably, see Attachment Figure 3 To Attachment Figure 5 A third slider 44 is fixedly provided at one end of each second movable plate 45, and each third slider 44 slides inside one side of the first annular plate 32. One end of each connecting plate 46 is rotatably connected to the inner wall of the fourth annular plate 41, and the other end of each connecting plate 46 is rotatably connected to one side of the second movable plate 45.

[0033] Preferably, see Attachment Figure 5 A diamond-shaped elastic member 47 is provided on one side of each second movable plate 45 , two connecting blocks 48 are fixedly provided on both sides of each diamond-shaped elastic member 47 , and two stirring plates 49 are fixedly provided on one end of each pair of connecting blocks 48 away from each other.

[0034] Preferably, see Attachment Figure 5 Two second soft rubber fins 50 are respectively connected between the two ends of each stirring plate 49 and the two sides of the diamond-shaped elastic member 47 .

[0035] Preferably, see Attachment Figure 5 An annular block 42 is fixedly provided on the outer side of the fourth annular plate 41 , and the annular block 42 slides in an annular manner in the inner wall of the cylinder 18 .

[0036] Preferably, see Attachment Figure 3 A spiral plate 14 is fixedly provided inside the annular shell 13 , and a spiral channel 15 is formed inside the annular shell 13 through the spiral plate 14 .

[0037] Preferably, see Attachment Figure 3 , Attachment Figure 6 A second one-way valve 31 is connected between the first annular cavity 25 and one end of the spiral channel 15, a water outlet pipe 29 is provided at the other end of the spiral channel 15, a water inlet pipe 30 is provided on one side of the first annular cavity 25, and a solenoid valve 52 is provided on one side of the shell 10, and the interior of the shell 10 is connected to the oil pump through the solenoid valve 52.

[0038] Specific use of the present invention: The rotor 17 is equipped with a permanent magnet. When the current passes through the winding on the stator 16, a rotating magnetic field is generated, and this rotating magnetic field attracts the rotor 17 to rotate. Since the axial magnetic flux of the rotor 17 is high, it can generate a greater torque, thereby achieving the output of a high-torque permanent magnet motor. When the oil pump is started, the cooling oil enters the housing 10 through the solenoid valve 52, and the cooling oil accumulated in the housing 10 will not accumulate too high, so it will not cause excessive resistance to the rotor 17.

[0039] First, the rotation of the rotor 17 drives the rotating shaft 12 to rotate, and the rotation of the rotating shaft 12 drives the first movable plate 19 to rotate through the fixed block 20. The rotation of the first movable plate 19 drives the two first sliders 21 to rotate, and the two first sliders 21 slide in the two arc-shaped slide grooves 22 respectively to cooperate with the two arc-shaped slide grooves 22 to form a wave-shaped slide groove structure, so that the first movable plate 19 rotates and moves back and forth in the cylinder 18. The first movable plate 19 moves away from the housing 10 to drive the second annular plate 34 and the second push rod 35 to move. The movement of the second annular plate 34 sucks the cooling oil in the housing 10 into the second annular cavity 26 through the first one-way valve 39, so that the heat on the stator 16 and the rotor 17 follows the cooling oil into the second annular cavity 26. The first movable plate 19 moves close to the housing 10 to drive the second push rod 35 and the second annular plate 34 to move. The second annular plate 34 moves to spray the cooling oil in the second annular cavity 26 onto the rotor 17 and the stator 16 through the spray valve 38, so as to facilitate the cooling and maintenance of the stator 16 and the rotor 17. The first movable plate 19 moves back and forth to drive the second push rod 35 and the second annular plate 34 to move back and forth. The second annular plate 34 moves back and forth to circulate the cooling oil in the housing 10 and the second annular cavity 26, so as to continuously cool the stator 16 and the rotor 17 and prevent the cooling oil in the housing 10 from accumulating too high. The first movable plate 19 rotates to drive the second push rod 35 and the second annular plate 34 to rotate. The second annular plate 34 rotates to drive the first soft rubber fins 40 to rotate. The first soft rubber fins 40 rotate to stir and mix the cooling oil in the second annular cavity 26, which is conducive to quickly cooling the cooling oil in the second annular cavity 26.

[0040] Secondly, the coolant enters the first annular cavity 25 through the water inlet pipe 30. After the first annular cavity 25 is filled with the coolant, the coolant enters the third annular cavity 27 through the plurality of connecting pipes 28, so that the coolant in the first annular cavity 25 and the third annular cavity 27 performs a dual cooling effect on the inside and outside of the cooling oil in the second annular cavity 26, which is conducive to quickly cooling the cooling oil in the second annular cavity 26. The coolant in the first annular cavity 25 flows in the plurality of connecting pipes 28, so as to improve the cooling effect of the cooling oil in the second annular cavity 26, promote the rapid cooling of the cooling oil in the second annular cavity 26, and keep the cooling oil continuously cooling the stator 16 and the rotor 17.

[0041] Next, the first movable plate 19 moves back and forth to drive the third annular plate 36 and the third push rod 37 to move back and forth. The first movable plate 19 moves close to the housing 10 to drive the third annular plate 36 and the third push rod 37 to move. The third annular plate 36 moves to squeeze the coolant in the third annular cavity 27 into the first annular cavity 25 through the plurality of connecting pipes 28. The first movable plate 19 moves away from the housing 10 to drive the third annular plate 36 and the third push rod 37 to move. The third annular plate 36 moves to draw the coolant in the first annular cavity 25 back into the third annular cavity 27 through the plurality of connecting pipes 28, so that the third annular plate 36 moves back and forth to circulate the coolant in the third annular cavity 27 in the first annular cavity 25 and the third annular cavity 27, and the coolant circulates in the plurality of connecting pipes 28, so as to maintain a rapid cooling effect on the cooling oil in the second annular cavity 26.

[0042] At the same time, the first movable plate 19 moves back and forth, driving the first annular plate 32 and the first push rod 33 to move back and forth. The first movable plate 19 moves close to the housing 10, driving the first annular plate 32 and the first push rod 33 to move. The first annular plate 32 moves to allow the coolant in the first annular cavity 25 to enter the spiral channel 15 through the second one-way valve 31. The coolant flows in the spiral channel 15 to cool the cooling oil in the housing 10. The coolant flows in the spiral channel 15 in a spiral manner, so as to extend the travel of the coolant in the annular shell 13, which is beneficial to improve the cooling effect on the cooling oil in the housing 10. The coolant in the spiral channel 15 is discharged through the water outlet pipe 29. The first movable plate 19 moves away from the housing 10, driving the first annular plate 32 and the first push rod 33 to move. The first annular plate 32 moves to suck new coolant into the first annular cavity 25 through the water inlet pipe 30, so as to continue to cool the cooling oil in the housing 10 and the second annular cavity 26, thereby improving the cooling and maintenance effect of the cooling oil on the stator 16 and the rotor 17.

[0043] Then, the first movable plate 19 rotates to drive the first push rod 33 and the first annular plate 32 to rotate, the first annular plate 32 rotates to drive the fourth annular plate 41 to rotate through the second slider 43, the fourth annular plate 41 rotates to drive the second movable plate 45 to rotate through the connecting plate 46, and the second movable plate 45 rotates to drive the diamond elastic member 47, the connecting block 48, and the stirring plate 49 to rotate, thereby stirring and mixing the coolant in the first annular cavity 25, so that the coolant in the first annular cavity 25 is heated evenly, thereby maintaining the cooling effect on the cooling oil. Among them, the rotation of the fourth annular plate 41 drives the annular block 42 to slide in an annular manner in the cylinder 18, so that the fourth annular plate 41 rotates smoothly.

[0044] At the same time, the first movable plate 19 approaches the housing 10 to drive the first annular plate 32 and the first push rod 33 to move. The movement of the first annular plate 32 drives the second slider 43 to slide on the inner wall of the fourth annular plate 41. The movement of the first annular plate 32 drives the second movable plate 45 to move horizontally. The horizontal movement of the second movable plate 45 drives the second movable plate 45 to move vertically through the rotation of the connecting plate 46. The vertical movement of the second movable plate 45 drives the third slider 44 to slide vertically on one side of the first annular plate 32. The vertical movement of the second movable plate 45 drives the diamond-shaped elastic member 47 to move. The horizontal back-and-forth movement of the first annular plate 32 drives the second movable plate 45 to move horizontally back-and-forth, and the second movable plate 45 rotates through the connecting plate 46, so that the second movable plate 45 and the diamond-shaped elastic member 47, the connecting block 48, and the stirring plate 49 move vertically back and forth. The diamond-shaped elastic members 47, the connecting block 48, and the stirring plate 49 move vertically back and forth and rotate, which is conducive to improving the stirring effect of the coolant in the first annular cavity 25.

[0045] Finally, the second movable plate 45 moves vertically to drive the diamond-shaped elastic member 47 to move vertically. The diamond-shaped elastic member 47 moves vertically and contacts the outer side of the first fixed ring 23, thereby squeezing and deforming the diamond-shaped elastic member 47. The deformation of the diamond-shaped elastic member 47 causes the two connecting blocks 48 and the stirring plate 49 to move away from each other. The two stirring plates 49 move away from each other to stretch the two pairs of second soft rubber fins 50 respectively, thereby expanding the contact area between the second soft rubber fins 50 and the coolant, further improving the stirring effect on the coolant in the first annular cavity 25, so as to continuously cool the cooling oil in the shell 10 and the second annular cavity 26, thereby improving the cooling and maintenance effect of the cooling oil on the stator 16 and the rotor 17.

[0046] The high-torque permanent magnet motor with a self-maintenance function of the present invention is provided with a second annular plate 34, a second push rod 35, a spray valve 38, and a first one-way valve 39. The first movable plate 19 moves away from the housing 10 to drive the second annular plate 34 and the second push rod 35 to move. The second annular plate 34 moves to suck the cooling oil in the housing 10 into the second annular cavity 26 through the first one-way valve 39, so that the heat on the stator 16 and the rotor 17 enters the second annular cavity 26 along with the cooling oil; and the first movable plate 19 moves close to the housing 10 to drive the second push rod 35 and the second annular plate 34 to move. The cooling oil in the second annular cavity 26 is sprayed onto the rotor 17 and the stator 16 through the spray valve 38, so as to cool the stator 16 and the rotor 17. The first movable plate 19 moves back and forth to drive the second push rod 35 and the second annular plate 34 to move back and forth. The second annular plate 34 moves back and forth to make the cooling oil circulate in the housing 10 and the second annular cavity 26, so as to continuously cool the stator 16 and the rotor 17. The cooling oil accumulated in the housing 10 will not accumulate too high, so it will not cause too large resistance to the rotor 17, avoiding affecting the normal rotation of the rotor 17. By setting the first soft rubber fins 40, the first movable plate 19 rotates to drive the second push rod 35 and the second annular plate 34 to rotate, and the second annular plate 34 rotates to drive the first soft rubber fins 40 to rotate. The rotation of the first soft rubber fins 40 stirs and mixes the cooling oil in the second annular cavity 26, which is beneficial to quickly cool down the cooling oil in the second annular cavity 26, so as to facilitate cooling and maintenance of the stator 16 and the rotor 17.

[0047] The present invention provides a high-torque permanent magnet motor with a self-maintenance function. Through the arrangement of a first annular cavity 25, a connecting pipe 28, and a third annular cavity 27, coolant enters the first annular cavity 25 through a water inlet pipe 30. After the first annular cavity 25 is filled with coolant, the coolant enters the third annular cavity 27 through a plurality of connecting pipes 28, thereby the coolant in the first annular cavity 25 and the third annular cavity 27 performs a dual cooling effect on the inside and outside of the cooling oil in the second annular cavity 26, which is beneficial to quickly cool the cooling oil in the second annular cavity 26; and the coolant in the first annular cavity 25 flows in a plurality of connecting pipes 28, so as to improve the cooling effect of the cooling oil in the second annular cavity 26, promote the rapid cooling of the cooling oil in the second annular cavity 26, and keep the cooling oil continuously cooling the stator 16 and the rotor 17. By setting the third annular plate 36 and the third push rod 37, the first movable plate 19 moves back and forth to drive the third annular plate 36 and the third push rod 37 to move back and forth. The third annular plate 36 moves back and forth to circulate the coolant in the third annular cavity 27 in the first annular cavity 25 and the third annular cavity 27, and circulates the coolant in the several connecting pipes 28, so as to maintain a rapid cooling effect on the cooling oil in the second annular cavity 26.

[0048] The high-torque permanent magnet motor with self-maintenance function of the present invention is provided with a spiral channel 15, a first annular plate 32, a first push rod 33, and a second one-way valve 31. The first movable plate 19 is close to the housing 10 to drive the first annular plate 32 and the first push rod 33 to move. The first annular plate 32 moves to allow the coolant in the first annular cavity 25 to enter the spiral channel 15 through the second one-way valve 31. The coolant flows in the spiral channel 15 to cool the cooling oil in the housing 10. The coolant flows in a spiral manner in the spiral channel 15 so as to The cooling liquid in the spiral channel 15 is discharged through the water outlet pipe 29, and the first movable plate 19 moves away from the shell 10 to drive the first annular plate 32 and the first push rod 33 to move. The first annular plate 32 moves through the water inlet pipe 30 to suck new coolant into the first annular cavity 25, so as to continuously cool the cooling oil in the shell 10 and the second annular cavity 26, thereby improving the cooling and maintenance effect of the cooling oil on the stator 16 and the rotor 17.

[0049] The present invention provides a high-torque permanent magnet motor with a self-maintenance function. Through the arrangement of a diamond-shaped elastic member 47, a connecting block 48, and a stirring plate 49, the first movable plate 19 rotates to drive the first push rod 33 and the first annular plate 32 to rotate. The first annular plate 32 rotates to drive the fourth annular plate 41 to rotate through the second slider 43. The fourth annular plate 41 rotates to drive the second movable plate 45 to rotate through the connecting plate 46. The second movable plate 45 rotates to drive the diamond-shaped elastic member 47, the connecting block 48, and the stirring plate 49 to rotate, thereby stirring and mixing the coolant in the first annular cavity 25, so that the coolant in the first annular cavity 25 is heated evenly, thereby maintaining the cooling effect on the cooling oil. Through the setting of the connecting plate 46 and the second movable plate 45, the first annular plate 32 moves back and forth horizontally, driving the second movable plate 45 to move back and forth horizontally. The connecting plate 46 rotates, so that the second movable plate 45 and the diamond-shaped elastic member 47, the connecting block 48, and the stirring plate 49 move back and forth vertically. The vertical movement and rotation of several diamond-shaped elastic members 47, the connecting block 48, and the stirring plate 49 are beneficial to improving the stirring effect of the coolant in the first annular cavity 25. Finally, by setting the second soft rubber fin 50, the second movable plate 45 moves vertically to drive the diamond elastic member 47 to move vertically. The diamond elastic member 47 moves vertically and contacts the outer side of the first fixed ring 23, so that the diamond elastic member 47 is squeezed and deformed. The deformation of the diamond elastic member 47 makes the two connecting blocks 48 and the stirring plate 49 move away from each other. The two stirring plates 49 move away from each other to stretch the two pairs of second soft rubber fins 50 respectively, thereby expanding the contact area between the second soft rubber fins 50 and the coolant, further improving the stirring effect on the coolant in the first annular cavity 25, so as to continuously cool the cooling oil in the shell 10 and the second annular cavity 26, thereby improving the cooling and maintenance effect of the cooling oil on the stator 16 and the rotor 17.

[0050] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A high torque permanent magnet motor with self-maintenance function, characterized in that: The invention comprises a shell (10), a maintenance cover (11) is installed at one end of the shell (10), a rotating shaft (12) is rotatably arranged in the middle of the shell (10), one end of the rotating shaft (12) extends to the inside of the maintenance cover (11), and the other end of the rotating shaft (12) extends to the outside of the shell (10), a maintenance component is arranged inside the maintenance cover (11), an annular shell (13) is arranged on the inner wall of the shell (10), a stator (16) is arranged on the inner side of the annular shell (13), and a rotor (17) is fixedly arranged on the outer side of the rotating shaft (12); The maintenance assembly comprises a cylinder (18), wherein the cylinder (18) is fixed inside the maintenance cover (11), a first fixing ring (23) and a second fixing ring (24) are fixedly provided on one side of the interior of the cylinder (18), a first annular cavity (25), a second annular cavity (26) and a third annular cavity (27) are separated by the first fixing ring (23) and the second fixing ring (24) on one side of the interior of the cylinder (18), a first movable plate (19) is slidably provided on the other side of the interior of the cylinder (18), a first annular plate (32) is slidably provided inside the first annular cavity (25), and A second annular plate (34) is slidably provided inside the second annular cavity (26), a third annular plate (36) is slidably provided inside the third annular cavity (27), a plurality of connecting pipes (28) are connected between the first annular cavity (25) and the second annular cavity (26), a first one-way valve (39) is connected between the inner lower side of the shell (10) and the second annular cavity (26), a spray valve (38) is connected between the inner upper side of the shell (10) and the second annular cavity (26), and a plurality of first soft rubber fins (40) are arranged in a circular array on one side of the second annular plate (34).

2. A high torque permanent magnet motor with self-maintenance function according to claim 1, characterized in that: A fixed block (20) is fixedly provided on the outer side of the rotating shaft (12), and the fixed block (20) slides axially with the inner side of the first movable plate (19), and the inner side of the first movable plate (19) is in sliding contact with the outer side of the rotating shaft (12). The inner wall of the cylinder (18) is symmetrically provided with two arc-shaped sliding grooves (22), and two first sliding blocks (21) are fixedly provided on both sides of the first movable plate (19), and the two first sliding blocks (21) are in sliding contact in the two arc-shaped sliding grooves (22), respectively, and the two arc-shaped sliding grooves (22) are connected to each other at the head and tail to form a wave-shaped sliding groove structure.

3. The high torque permanent magnet motor with self-maintenance function according to claim 2, characterized in that: A first push rod (33) is fixedly connected between one side of the first annular plate (32) and one side of the first movable plate (19), a second push rod (35) is fixedly connected between one side of the second annular plate (34) and one side of the first movable plate (19), and a third push rod (37) is fixedly connected between one side of the third annular plate (36) and one side of the first movable plate (19).

4. The high torque permanent magnet motor with self-maintenance function according to claim 1, characterized in that: A fourth annular plate (41) is provided in an annular sliding manner on the inner wall of the first annular cavity (25); a second slider (43) is fixedly provided on the outer side of the first annular plate (32); the second slider (43) is in sliding contact with the inner wall of the fourth annular plate (41); a plurality of second movable plates (45) are provided in a circumferential array for sliding movement on one side of the first annular plate (32); a connecting plate (46) is provided between one side of each second movable plate (45) and the inner wall of the fourth annular plate (41).

5. The high torque permanent magnet motor with self-maintenance function according to claim 4, characterized in that: A third slider (44) is fixedly provided at one end of each second movable plate (45), and each third slider (44) slides inside one side of the first annular plate (32). One end of each connecting plate (46) is rotatably connected to the inner wall of the fourth annular plate (41), and the other end of each connecting plate (46) is rotatably connected to one side of the second movable plate (45).

6. The high torque permanent magnet motor with self-maintenance function according to claim 4, characterized in that: A diamond-shaped elastic member (47) is provided on one side of each second movable plate (45), two connecting blocks (48) are fixedly provided on both sides of each diamond-shaped elastic member (47), and two stirring plates (49) are fixedly provided on the ends of each pair of connecting blocks (48) away from each other.

7. The high torque permanent magnet motor with self-maintenance function according to claim 6, characterized in that: Two second soft rubber fins (50) are respectively connected between the two ends of each stirring plate (49) and the two sides of the diamond-shaped elastic member (47).

8. The high torque permanent magnet motor with self-maintenance function according to claim 4, characterized in that: An annular block (42) is fixedly provided on the outer side of the fourth annular plate (41), and the annular block (42) slides in an annular manner in the inner wall of the cylinder (18).

9. The high torque permanent magnet motor with self-maintenance function according to claim 1, characterized in that: A spiral plate (14) is fixedly arranged inside the annular shell (13), and a spiral channel (15) is formed inside the annular shell (13) through the spiral plate (14).

10. The high torque permanent magnet motor with self-maintenance function according to claim 9, characterized in that: A second one-way valve (31) is connected between the first annular cavity (25) and one end of the spiral channel (15); a water outlet pipe (29) is provided at the other end of the spiral channel (15); a water inlet pipe (30) is provided at one side of the first annular cavity (25); a solenoid valve (52) is provided at one side of the housing (10); and the interior of the housing (10) is connected to the oil pump via the solenoid valve (52).

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