A high-torque permanent magnet motor with self-maintenance function

Abstract

The present invention relates to the technical field of high-torque permanent magnet motors, and discloses a high-torque permanent magnet motor with a self-maintenance function, including a housing. A maintenance cover is installed at one end of the housing. A rotating shaft is rotatably provided in the middle of the interior of the housing. One end of the rotating shaft extends into the interior of the maintenance cover, and the other end of the rotating shaft extends outside the housing. A maintenance component is provided inside the maintenance cover. An annular shell is provided on the inner wall of the housing. A stator is provided inside the annular shell. A rotor is fixedly provided on the outer side of the rotating shaft; the present invention can drive the second ejector rod and the second annular plate to move back and forth by the back-and-forth movement of the first movable plate. The back-and-forth movement of the second annular plate enables the cooling oil to circulate in the housing and the second annular cavity, so as to continuously cool the stator and the rotor; and the cooling oil accumulated in the housing will not accumulate too high, so it will not cause too much resistance to the rotor and avoid affecting the normal rotation of the rotor.

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] For high-torque permanent magnet motors, the requirements for the power density of the motors are becoming increasingly stringent. Existing high-torque permanent magnet motors mostly use the water cooling method of the motor housing to dissipate heat from the motor. This cooling method requires the heat source inside the motor to be transferred to the outside through layers of materials and then taken away by the water channel. The motor windings cannot be directly cooled, resulting in temperature accumulation. In particular, the end windings of the motor cannot contact the water channel of the housing, leading to excessive temperature. Therefore, it is necessary to directly cool the heat source to improve the cooling efficiency. However, the existing high-torque permanent magnet motors in the prior art have the following defects:

[0003] In the prior art, the motor rotor in a high-torque permanent magnet motor is an important part of the motor. Traditional water cooling cannot directly contact the motor. That is, using a water-cooled jacket, the heat of the motor rotor is transferred to the motor stator, the heat of the motor stator is transferred to the jacket, and the jacket then takes away the heat through the liquid. However, in high-power density motors with relatively high requirements for heat dissipation, due to the reason of heat transfer resistance and the poor thermal conductivity of the motor rotor, the efficiency of the water taking away heat is not high, and the temperature inside the motor cannot be effectively reduced in a timely manner.

[0004] In the prior art, the cooling component in a high-torque permanent magnet motor uses oil cooling and water cooling in combination to dissipate heat inside the motor. However, for an oil-immersed motor, that is, the motor is immersed in oil, and the heat is evenly transferred to the wall of the water jacket by the heat-conducting oil. However, in this structure, since the rotor rotates in the oil, the resistance loss is large, the energy loss is large, and the heat generation may increase; and the cooling oil cannot flow inside the motor, thus affecting the cooling and maintenance effect of the cooling oil on the motor.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a high-torque permanent magnet motor with a self-maintenance function is provided, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0006] The present invention provides a high-torque permanent magnet motor with a self-maintenance function to overcome the above defects in the prior art.

[0007] The purpose and efficacy of a high-torque permanent magnet motor with a self-maintenance function according to the present invention are achieved by the following specific technical means:

[0008] A high-torque permanent magnet motor with self-maintenance function, comprising a housing, a maintenance cover is installed at one end of the housing, a rotating shaft is rotatably arranged in the middle of the housing, one end of the rotating shaft extends into the maintenance cover, and the other end of the rotating shaft extends outside the housing. A maintenance component is arranged inside the maintenance cover, an annular shell is arranged on the inner wall of the housing, a stator is arranged inside the annular shell, and a rotor is fixedly arranged on the outer side of the rotating shaft; the maintenance component includes 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 inside the cylinder, the first fixing ring and the second fixing ring are used to separate a first annular cavity, a second annular cavity and a third annular cavity on one side inside the cylinder, a first movable plate is slidably arranged on the other side inside the cylinder, a first annular plate is slidably arranged inside the first annular cavity, a second annular plate is slidably arranged inside the second annular cavity, a third annular plate is slidably arranged 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 lower side inside the housing and the second annular cavity, a spray valve is connected between the upper side inside the housing and the second annular cavity, and a plurality of first soft rubber fins are arranged in a circumferential array on one side of the second annular plate.

[0009] Further technical solution, a fixed block is fixedly arranged on the outer side of the rotating shaft, the fixed block axially slides with the inner side of the first movable plate, the inner side of the first movable plate is in sliding contact with the outer side of the rotating shaft, two arc-shaped chutes are symmetrically arranged on the inner wall of the cylinder, two first sliders are respectively fixedly arranged on both sides of the first movable plate, and the two first sliders are respectively in sliding contact in the two arc-shaped chutes, and the two arc-shaped chutes are connected end to end to form a wavy chute structure.

[0010] Further technical solution, a first ejector rod is fixedly connected between one side of the first annular plate and one side of the first movable plate, a second ejector rod is fixedly connected between one side of the second annular plate and one side of the first movable plate, and a third ejector rod is fixedly connected between one side of the third annular plate and one side of the first movable plate.

[0011] Further technical solution, a fourth annular plate is annularly slidably arranged on the inner wall of the first annular cavity, a second slider is fixedly arranged on the outer side of the first annular plate, the second slider is in sliding contact with the inner wall of the fourth annular plate, and a plurality of second movable plates are circumferentially and slidably arranged 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.

[0012] Further technical solution: at one end of each of the second movable plates, a third slider is fixedly provided, and each of the third sliders slides inside 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.

[0013] Further technical solution: on one side of each of the second movable plates, a rhombic elastic member is provided. On both sides of each of the rhombic elastic members, two connecting blocks are fixedly provided respectively. At one end of each pair of the connecting blocks away from each other, two stirring plates are fixedly provided respectively.

[0014] Further technical solution: between both sides of the rhombic elastic member and both ends of each of the stirring plates, two second soft rubber fins are connected and provided respectively.

[0015] Further technical solution: an annular block is fixedly provided on the outer side of the fourth annular plate, and the annular block slides annularly inside the inner wall of the cylinder.

[0016] 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.

[0017] Further technical solution: a second one-way valve is connected and provided between one end of the first annular cavity and the spiral channel. A water outlet pipe is provided at the other end of the spiral channel. A water inlet pipe is provided on one side of the first annular cavity. An electromagnetic valve is provided on one side of the housing. Inside the housing, it is connected to an oil pump through the electromagnetic valve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the setting of the second annular plate, the second ejector rod, the spray valve, and the first one-way valve, when the first movable plate moves away from the housing, it drives the second annular plate and the second ejector rod to move. The movement of the second annular plate sucks the cooling oil in the housing 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 when the first movable plate moves closer to the housing, it drives the second ejector 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, and when the first movable plate moves back and forth to drive the second ejector rod and the second annular plate to move back and forth, the back-and-forth movement of the second annular plate makes the cooling oil circulate in the housing and the second annular cavity, so as to continuously cool the stator and the rotor; and the cooling oil accumulated in the housing will not accumulate too high, so it will not cause too much resistance to the rotor and avoid affecting the normal rotation of the rotor. By setting the first soft rubber fins, the rotation of the first movable plate drives the second ejector rod and the second annular plate to rotate, the rotation of the second annular plate drives several first soft rubber fins to rotate, and the rotation of several first soft rubber fins stirs and mixes the cooling oil in the second annular cavity, which is beneficial to quickly cool the cooling oil in the second annular cavity, so as to cool and maintain the stator and the rotor.

[0020] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the setting 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. After the first annular cavity is filled with the coolant, the coolant enters the third annular cavity through several connecting pipes, so as to cool the cooling oil in the second annular cavity from the inside and the outside through the coolant in the first annular cavity and the third annular cavity, which is beneficial to quickly cool the cooling oil in the second annular cavity; and the coolant in the first annular cavity flows in several connecting pipes, so as to improve the cooling effect of the cooling oil in the second annular cavity, promote the quick cooling of the cooling oil in the second annular cavity, and keep the cooling oil continuously cooling the stator and the rotor. By setting the third annular plate and the third ejector rod, the back-and-forth movement of the first movable plate drives the third annular plate and the third ejector rod to move back and forth. The back-and-forth movement of the third annular plate circulates the coolant in the third annular cavity in the first annular cavity and the third annular cavity, and makes the coolant circulate in several connecting pipes, so as to keep quickly cooling the cooling oil in the second annular cavity.

[0021] A high-torque permanent magnet motor with self-maintenance function of the present invention, through the settings of a spiral channel, a first annular plate, a first ejector rod, and a second one-way valve, when the first movable plate approaches the housing, it drives the first annular plate and the first ejector rod to move. The movement of the first annular plate causes 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 housing; and the coolant spirally flows in the spiral channel, so as to extend the travel of the coolant moving in the annular housing, which is beneficial to improving the cooling effect on the cooling oil in the housing; the coolant in the spiral channel is discharged through the water outlet pipe. When the first movable plate moves away from the housing, it drives the first annular plate and the first ejector rod to move. The movement of the first annular plate sucks new coolant into the first annular cavity through the water inlet pipe, so as to continuously cool the cooling oil in the housing and the second annular cavity, thereby improving the cooling and maintenance effect of the cooling oil on the stator and the rotor.

[0022] A high-torque permanent magnet motor with self-maintenance function of the present invention, through the settings of a rhombic elastic member, a connecting block, and a stirring plate, when the first movable plate rotates, it drives the first ejector rod and the first annular plate to rotate. The rotation of the first annular plate drives the fourth annular plate to rotate through the second slider. The rotation of the fourth annular plate drives the second movable plate to rotate through the connecting plate. The rotation of the second movable plate drives the rhombic elastic member, the connecting block, and the stirring plate to rotate, thereby stirring and mixing the coolant in the first annular cavity, making the coolant in the first annular cavity evenly heated, so as to maintain the cooling effect on the cooling oil. Further, through the settings of the connecting plate and the second movable plate, the horizontal reciprocating movement of the first annular plate drives the second movable plate to move horizontally back and forth. By the rotation of the connecting plate, the second movable plate and the rhombic elastic member, the connecting block, and the stirring plate move vertically back and forth. The vertical reciprocating movement and rotation of several rhombic elastic members, connecting blocks, and stirring plates are beneficial to improving the stirring effect on the coolant in the first annular cavity. Finally, through the setting of the second soft rubber fins, the vertical movement of the second movable plate drives the rhombic elastic member to move vertically. The vertical movement of the rhombic elastic member contacts the outer side of the first fixing ring, so that the rhombic elastic member is squeezed and deformed. The deformation of the rhombic elastic member makes the two connecting blocks and the stirring plates move away from each other. The two stirring plates moving away from each other respectively stretch the two pairs of second soft rubber fins, thereby expanding the contact area between the second soft rubber fins and the coolant, further improving the stirring effect on the coolant in the first annular cavity, so as to continuously cool the cooling oil in the housing and the second annular cavity, thereby improving the cooling and maintenance effect of the cooling oil on the stator and the rotor. Brief Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 Isometric structure schematic diagram of the present invention;

[0026] Figure 2 Front view structure schematic diagram of the present invention;

[0027] Figure 3 Is Figure 2 Cross-sectional structure schematic diagram at A-A in

[0028] Figure 4 Is Figure 3 Local enlarged structure schematic diagram at D in

[0029] Figure 5 Is Figure 3 Local enlarged structure schematic diagram at E in

[0030] Figure 6 Is Figure 2 Cross-sectional structure schematic diagram at B-B in

[0031] Figure 7 Is Figure 6 Local enlarged structure schematic diagram at F in

[0032] Figure 8 Top view structure schematic diagram of the present invention;

[0033] Figure 9 Is Figure 8 Cross-sectional structure schematic diagram at C-C in

[0034] Explanation of reference numerals:

[0035] 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 chute 22, first fixing ring 23, second fixing 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 check valve 31, first annular plate 32, first ejector rod 33, second annular plate 34, second ejector rod 35, third annular plate 36, third ejector rod 37, spray valve 38, first check 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-shaped elastic member 47, connecting block 48, stirring plate 49, second soft rubber fin 50, support foot 51, solenoid valve 52. Detailed implementation mode

[0036] The following further describes in detail the implementation mode of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of 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.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] As shown in the attached Figure 1 to the attached Figure 9 figures:

[0040] The present invention provides a high-torque permanent magnet motor with a self-maintenance function.

[0041] Referring to the attached Figure 1 to the attached Figure 9, including a housing 10, a maintenance cover 11 is installed at one end of the housing 10, a rotating shaft 12 is rotatably provided in the middle of the housing 10, one end of the rotating shaft 12 extends into the maintenance cover 11, and the other end of the rotating shaft 12 extends outside the housing 10. A maintenance component is provided inside the maintenance cover 11, an annular housing 13 is provided on the inner wall of the housing 10, a stator 16 is provided on the inner side of the annular housing 13, and a rotor 17 is fixedly provided on the outer side of the rotating shaft 12; the maintenance component 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 provided on one side inside 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 inside the cylinder 18, a first movable plate 19 is slidably provided on the other side inside 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 lower side inside the housing 10 and the second annular cavity 26, a spray valve 38 is connected between the upper side inside the housing 10 and the second annular cavity 26, and a plurality of first soft rubber fins 40 are circumferentially arranged on one side of the second annular plate 34.

[0042] Preferably, referring to the attached Figure 6 to the attached Figure 7 , a fixing block 20 is fixedly provided on the outer side of the rotating shaft 12, the fixing block 20 axially slides 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 chutes 22 are symmetrically provided on the inner wall of the cylinder 18, two first sliders 21 are respectively fixedly provided on both sides of the first movable plate 19, and the two first sliders 21 are respectively in sliding contact in the two arc-shaped chutes 22, and the two arc-shaped chutes 22 are connected end to end to form a wavy chute structure.

[0043] Preferably, referring to the attached Figure 3 to the attached Figure 5 , a first ejector 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 ejector 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 ejector rod 37 is fixedly connected between one side of the third annular plate 36 and one side of the first movable plate 19.

[0044] Preferably, referring to the attached Figure 3 to the attached Figure 5, on the inner wall of the first annular cavity 25, a fourth annular plate 41 is annularly and slidably arranged. On the outer side of the first annular plate 32, a second slider 43 is fixedly arranged. The second slider 43 is in sliding contact with the inner wall of the fourth annular plate 41. On one side of the first annular plate 32, a plurality of second movable plates 45 are arranged in a circumferential array and slidably. Between one side of each second movable plate 45 and the inner wall of the fourth annular plate 41, a connecting plate 46 is connected.

[0045] Preferably, referring to the attached Figure 3 to the attached Figure 5 , at one end of each second movable plate 45, a third slider 44 is fixedly arranged. 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.

[0046] Preferably, referring to the attached Figure 5 , on one side of each second movable plate 45, a diamond-shaped elastic member 47 is arranged. On both sides of each diamond-shaped elastic member 47, two connecting blocks 48 are respectively fixedly arranged. At the ends of each pair of connecting blocks 48 that are far away from each other, two stirring plates 49 are respectively fixedly arranged.

[0047] Preferably, referring to the attached Figure 5 , between both ends of each stirring plate 49 and both sides of the diamond-shaped elastic member 47, two second soft rubber fins 50 are connected.

[0048] Preferably, referring to the attached Figure 5 , on the outer side of the fourth annular plate 41, an annular block 42 is fixedly arranged. The annular block 42 annularly slides inside the inner wall of the cylinder 18.

[0049] Preferably, referring to the attached Figure 3 , inside the annular shell 13, a spiral plate 14 is fixedly arranged. Inside the annular shell 13, a spiral channel 15 is formed by the spiral plate 14.

[0050] Preferably, referring to the attached Figure 3 and the attached Figure 6 , between one end of the first annular cavity 25 and one end of the spiral channel 15, a second one-way valve 31 is connected. At the other end of the spiral channel 15, a water outlet pipe 29 is provided. On one side of the first annular cavity 25, a water inlet pipe 30 is provided. On one side of the housing 10, a solenoid valve 52 is provided. Inside the housing 10, it is connected to an oil pump through the solenoid valve 52.

[0051] The specific usage method of the present invention:

[0052] A permanent magnet is installed on the rotor 17. When an electric current passes through the winding on the stator 16, a rotating magnetic field will be generated, and this rotating magnetic field will attract the rotor 17 to rotate. Since the axial magnetic flux of the rotor 17 is relatively high, a greater torque can be generated, thus realizing the output of a high-torque permanent magnet motor. When the oil pump starts, 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 the resistance of the rotor 17 will not be too large.

[0053] First, the rotation of the rotor 17 drives the rotation of the rotating shaft 12. The rotation of the rotating shaft 12 drives the rotation of the first movable plate 19 through the fixed block 20. The rotation of the first movable plate 19 drives the rotation of the two first sliders 21. The two first sliders 21 slide in the two arc-shaped chutes 22 respectively. The two arc-shaped chutes 22 are connected end to end to form a wavy chute structure, so that the first movable plate 19 rotates and moves back and forth in the cylinder 18. When the first movable plate 19 moves away from the housing 10, it drives the second annular plate 34 and the second ejector 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 enters the second annular cavity 26 along with the cooling oil. When the first movable plate 19 approaches the housing 10, it drives the second ejector rod 35 and the second annular plate 34 to move. The movement of the second annular plate 34 sprays 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 cool and maintain the stator 16 and the rotor 17. When the first movable plate 19 moves back and forth, it drives the second ejector rod 35 and the second annular plate 34 to move back and forth. The back-and-forth movement of the second annular plate 34 makes the cooling oil circulate between 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 rotation of the first movable plate 19 drives the rotation of the second ejector rod 35 and the second annular plate 34. The rotation of the second annular plate 34 drives the rotation of a number of first soft rubber fins 40. The rotation of the number of 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.

[0054] Second, 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 a number of connecting pipes 28, so as to cool the cooling oil in the second annular cavity 26 from the inside and the outside, which is beneficial to quickly cool down the cooling oil in the second annular cavity 26. The coolant in the first annular cavity 25 flows in a number of connecting pipes 28, so as to improve the cooling effect of the cooling oil in the second annular cavity 26, promote the quick cooling of the cooling oil in the second annular cavity 26, and keep the cooling oil continuously cooling and maintaining the stator 16 and the rotor 17.

[0055] Next, the reciprocating movement of the first movable plate 19 drives the reciprocating movement of the third annular plate 36 and the third ejector rod 37. When the first movable plate 19 approaches the housing 10, it drives the movement of the third annular plate 36 and the third ejector rod 37. The movement of the third annular plate 36 squeezes the coolant in the third annular cavity 27 into the first annular cavity 25 through a plurality of connecting pipes 28. And when the first movable plate 19 moves away from the housing 10, it drives the movement of the third annular plate 36 and the third ejector rod 37. The movement of the third annular plate 36 draws back the coolant in the first annular cavity 25 into the third annular cavity 27 through a plurality of connecting pipes 28, so that the reciprocating movement of the third annular plate 36 circulates the coolant in the third annular cavity 27 between the first annular cavity 25 and the third annular cavity 27, and makes the coolant circulate in a plurality of connecting pipes 28, so as to quickly cool down the cooling oil in the second annular cavity 26.

[0056] At the same time, the reciprocating movement of the first movable plate 19 drives the reciprocating movement of the first annular plate 32 and the first ejector rod 33. When the first movable plate 19 approaches the housing 10, it drives the movement of the first annular plate 32 and the first ejector rod 33. The movement of the first annular plate 32 makes the coolant in the first annular cavity 25 enter the spiral channel 15 through the second one-way valve 31. The coolant flowing in the spiral channel 15 cools down the cooling oil in the housing 10, and the coolant spirally flows in the spiral channel 15, so as to extend the travel of the coolant moving in the annular housing 13, which is beneficial to improving 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. When the first movable plate 19 moves away from the housing 10, it drives the movement of the first annular plate 32 and the first ejector rod 33. The movement of the first annular plate 32 sucks new coolant into the first annular cavity 25 through the water inlet pipe 30, so as to continuously cool down 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.

[0057] Then, the rotation of the first movable plate 19 drives the rotation of the first ejector rod 33 and the first annular plate 32. The rotation of the first annular plate 32 drives the rotation of the fourth annular plate 41 through the second slider 43. The rotation of the fourth annular plate 41 drives the rotation of the second movable plate 45 through the connecting plate 46. The rotation of the second movable plate 45 drives the rotation of the diamond elastic member 47, the connecting block 48, and the stirring plate 49, thereby stirring and mixing the coolant in the first annular cavity 25, making the coolant in the first annular cavity 25 evenly heated, and thus 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 annularly in the cylinder 18, so that the fourth annular plate 41 rotates smoothly.

[0058] Meanwhile, the first movable plate 19 moves closer to the housing 10, driving the first annular plate 32 and the first ejector 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 pushes 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. Through the rotation of the connecting plate 46, the second movable plate 45, the diamond-shaped elastic member 47, the connecting block 48, and the stirring plate 49 move vertically back and forth. The vertical back-and-forth movement and rotation of several diamond-shaped elastic members 47, connecting blocks 48, and stirring plates 49 are beneficial to improving the stirring effect of the coolant in the first annular cavity 25.

[0059] Finally, the vertical movement of the second movable plate 45 drives the diamond-shaped elastic member 47 to move vertically. The vertical movement of the diamond-shaped elastic member 47 contacts the outer side of the first fixed ring 23, causing the diamond-shaped elastic member 47 to be squeezed and deformed. The deformation of the diamond-shaped elastic member 47 causes the two connecting blocks 48 and the stirring plates 49 to move away from each other. The two stirring plates 49 moving away from each other respectively stretch the two pairs of second soft rubber fins 50, thereby expanding the contact area between the second soft rubber fins 50 and the coolant, further improving the stirring effect of the coolant in the first annular cavity 25, facilitating the continuous cooling of the cooling oil in the housing 10 and the second annular cavity 26, and thus improving the cooling and maintenance effect of the cooling oil on the stator 16 and the rotor 17.

[0060] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the settings of the second annular plate 34, the second ejector rod 35, the spray valve 38, and the first one-way valve 39, when the first movable plate 19 moves away from the housing 10, it drives the second annular plate 34 and the second ejector 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 enters the second annular cavity 26 along with the cooling oil; and when the first movable plate 19 moves close to the housing 10, it drives the second ejector rod 35 and the second annular plate 34 to move. The movement of the second annular plate 34 sprays 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 cool the stator 16 and the rotor 17. In order to drive the second ejector rod 35 and the second annular plate 34 to move back and forth when the first movable plate 19 moves back and forth, the back-and-forth movement of the second annular plate 34 enables the cooling oil to circulate in the housing 10 and the second annular cavity 26, so as to continuously cool the stator 16 and the rotor 17; and the cooling oil accumulated in the housing 10 will not accumulate too high, so it will not cause too much resistance to the rotor 17 and avoid affecting the normal rotation of the rotor 17. Through the setting of the first soft rubber fins 40, when the first movable plate 19 rotates, it drives the second ejector rod 35 and the second annular plate 34 to rotate. The rotation of the second annular plate 34 drives a plurality of first soft rubber fins 40 to rotate, and the rotation of the plurality of 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 cool and maintain the stator 16 and the rotor 17.

[0061] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the settings of the first annular cavity 25, the connecting pipe 28, and the third annular cavity 27, 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 a plurality of connecting pipes 28. Thus, the coolant in the first annular cavity 25 and the third annular cavity 27 cools the cooling oil in the second annular cavity 26 from the inside and the outside, which is beneficial to quickly cool down 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. Through the settings of the third annular plate 36 and the third ejector rod 37, when the first movable plate 19 moves back and forth, it drives the third annular plate 36 and the third ejector rod 37 to move back and forth. The back-and-forth movement of the third annular plate 36 circulates the coolant in the third annular cavity 27 in the first annular cavity 25 and the third annular cavity 27, and makes the coolant circulate in a plurality of connecting pipes 28, so as to keep quickly cooling the cooling oil in the second annular cavity 26.

[0062] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the settings of the spiral channel 15, the first annular plate 32, the first ejector rod 33, and the second one-way valve 31, when the first movable plate 19 approaches the housing 10, it drives the first annular plate 32 and the first ejector rod 33 to move. The movement of the first annular plate 32 causes the coolant in the first annular cavity 25 to enter the spiral channel 15 through the second one-way valve 31. The coolant flowing in the spiral channel 15 cools the cooling oil in the housing 10. And the coolant spirally flows in the spiral channel 15, so as to extend the travel of the coolant moving in the annular housing 13, which is beneficial to improving 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. When the first movable plate 19 moves away from the housing 10, it drives the first annular plate 32 and the first ejector rod 33 to move. The movement of the first annular plate 32 sucks new coolant into the first annular cavity 25 through the water inlet pipe 30, so as to continuously 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.

[0063] A high-torque permanent magnet motor with self-maintenance function according to the present invention, through the settings of the diamond-shaped elastic member 47, the connecting block 48, and the stirring plate 49, when the first movable plate 19 rotates, it drives the first ejector rod 33 and the first annular plate 32 to rotate. The rotation of the first annular plate 32 drives the fourth annular plate 41 to rotate through the second slider 43. The rotation of the fourth annular plate 41 drives the second movable plate 45 to rotate through the connecting plate 46. The rotation of the second movable plate 45 drives 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, making the coolant in the first annular cavity 25 evenly heated, so as to maintain the cooling effect on the cooling oil. Further, through the settings of the connecting plate 46 and the second movable plate 45, when the first annular plate 32 moves horizontally back and forth, it drives the second movable plate 45 to move horizontally back and forth. By the rotation of the connecting plate 46, 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 vertical back-and-forth movement and rotation of several diamond-shaped elastic members 47, connecting blocks 48, and stirring plates 49 are beneficial to improving the stirring effect on the coolant in the first annular cavity 25. Finally, through the setting of the second soft rubber fin 50, when the second movable plate 45 moves vertically, it drives the diamond-shaped elastic member 47 to move vertically. The vertical movement of the diamond-shaped elastic member 47 contacts the outer side of the first fixed ring 23, so that the diamond-shaped elastic member 47 is squeezed and deformed. 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 moving away from each other respectively stretch the two pairs of second soft rubber fins 50, 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 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.

[0064] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-torque permanent magnet motor with self-maintenance function, characterized in that: It includes a housing (10), a maintenance cover (11) is installed at one end of the housing (10), a rotating shaft (12) is rotatably provided in the middle of the housing (10), one end of the rotating shaft (12) extends into the maintenance cover (11), the other end of the rotating shaft (12) extends outside the housing (10), a maintenance component is provided inside the maintenance cover (11), an annular housing (13) is provided on the inner wall of the housing (10), a stator (16) is provided inside the annular housing (13), and a rotor (17) is fixedly provided on the outside of the rotating shaft (12); The maintenance component 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 provided on one side inside 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 inside the cylinder (18), a first movable plate (19) is slidably provided on the other side inside 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 lower side inside the housing (10) and the second annular cavity (26), a spray valve (38) is connected between the upper side inside the housing (10) and the second annular cavity (26), and a plurality of first soft rubber fins (40) are circumferentially arranged on one side of the second annular plate (34); A fixing block (20) is fixedly provided on the outside of the rotating shaft (12), the fixing block (20) axially slides 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 outside of the rotating shaft (12), two arc-shaped chutes (22) are symmetrically provided on the inner wall of the cylinder (18), two first sliders (21) are respectively fixedly provided on both sides of the first movable plate (19), and the two first sliders (21) are respectively in sliding contact in the two arc-shaped chutes (22), and the two arc-shaped chutes (22) are connected end to end to form a wavy chute structure.

2. The high-torque permanent magnet motor with self-maintenance function according to claim 1, wherein: A first ejector 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 ejector 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 ejector rod (37) is fixedly connected between one side of the third annular plate (36) and one side of the first movable plate (19).

3. A high-torque permanent magnet motor with a self-maintenance function according to claim 1, characterized in that: The inner wall of the first annular cavity (25) is annularly and slidably provided with a fourth annular plate (41). 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 arranged on one side of the first annular plate (32) in a circumferential array and slidably. 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).

4. A high-torque permanent magnet motor with a self-maintenance function according to claim 3, characterized in that: One end of each second movable plate (45) is fixedly provided with a third slider (44). 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).

5. A high-torque permanent magnet motor with a self-maintenance function according to claim 3, characterized in that: One side of each second movable plate (45) is provided with a diamond-shaped elastic member (47). Two connecting blocks (48) are respectively fixedly provided on both sides of each diamond-shaped elastic member (47). Two stirring plates (49) are respectively fixedly provided at the ends of each pair of connecting blocks (48) away from each other.

6. A high-torque permanent magnet motor with self-maintenance function according to claim 5, characterized in that: Two second soft rubber fins (50) are connected between both ends of each stirring plate (49) and both sides of the diamond-shaped elastic member (47).

7. A high-torque permanent magnet motor with self-maintenance function according to claim 3, characterized in that: An annular block (42) is fixedly provided on the outer side of the fourth annular plate (41). The annular block (42) annularly slides inside the inner wall of the cylinder (18).

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

9. A high-torque permanent magnet motor with self-maintenance function according to claim 8, 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). The other end of the spiral channel (15) is provided with a water outlet pipe (29). A water inlet pipe (30) is provided on one side of the first annular cavity (25). A solenoid valve (52) is provided on one side of the housing (10). The inside of the housing (10) is connected to an oil pump through the solenoid valve (52).

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