Permanent magnet motor with waterproof function

Abstract

The invention discloses a permanent magnet motor with a waterproof function, and relates to the technical field of permanent magnet motors, and the permanent magnet motor comprises a base, the top of the base is fixedly provided with a support, the top of the support is fixedly provided with a permanent magnet motor, the bottom of the base is provided with a protection cover, and the top of the base is fixedly provided with a fitting plate. The top of the attaching plate is matched with an output shaft of the permanent magnet motor, and the outer side of the attaching plate is in sliding contact with the protective cover. The water cooling pipe is installed on the outer side of the permanent magnet motor, then the protection cover is installed on the top of the permanent magnet motor, the permanent magnet motor can be protected by the protection cover, the water cooling pipe is installed on the outer side of the permanent magnet motor, the protection cover is installed on the top of the permanent magnet motor, and the permanent magnet motor is prevented from being damaged. The permanent magnet motor is prevented from being eroded by a humid environment, even external impact can be prevented, the water cooling pipe on the inner side of the protection cover can be additionally arranged for the protection cover, and the service life of the permanent magnet motor is further prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet motors, and particularly to a permanent magnet motor with a waterproof function. Background Art

[0002] A permanent magnet motor (PMM) is a permanent magnet motor that uses permanent magnets (such as neodymium iron boron, samarium cobalt, etc.) to generate a constant magnetic field to replace traditional electric excitation. Its high efficiency, high power density, and energy-saving characteristics make it widely used in new energy, industrial drive, aerospace and other fields.

[0003] When the permanent magnet motors in the prior art are in use, if they encounter a humid environment or an environment with accumulated water, they are likely to cause damage to the permanent magnet motors and affect the service life of the permanent magnet motors. Therefore, the present invention proposes a permanent magnet motor with a waterproof function to solve the above problems. Summary of the Invention

[0004] The purpose of the present application is to provide a permanent magnet motor with a waterproof function to solve the problem that when the permanent magnet motor in the above background art is in use, if it encounters a humid environment or an environment with accumulated water, it is likely to cause damage to the permanent magnet motor and affect the service life of the permanent magnet motor.

[0005] To achieve the above purpose, the present application provides the following technical solution: A permanent magnet motor with a waterproof function includes a base. A bracket is fixedly installed at the top of the base, and a permanent magnet motor is fixedly installed at the top of the bracket. A protective cover is provided at the bottom of the base. A fitting plate is fixedly installed at the top of the base. The top of the fitting plate is matched with the output shaft of the permanent magnet motor, and the outside of the fitting plate is in sliding contact with the protective cover.

[0006] A limiting mechanism and a fixing mechanism are respectively provided at the rear side of the protective cover. The limiting mechanism is respectively matched with the protective cover, the base, and the fixing mechanism. A cooling mechanism and a mounting mechanism are respectively provided at the top of the bracket. The cooling mechanism is respectively matched with the mounting mechanism and the permanent magnet motor.

[0007] With the above structure, by installing the water-cooling pipe on the outside of the permanent magnet motor and then installing the protective cover on the top of the permanent magnet motor, the protective cover can protect the permanent magnet motor, prevent the permanent magnet motor from being eroded by a humid environment, and even prevent external impacts. The water-cooling pipe on the inner side of the protective cover can also increase the service life of the permanent magnet motor further.

[0008] Preferably, the limiting mechanism includes: a fixed rod, a rotating frame, a driving rod, and a round block.

[0009] The fixed rod is fixedly installed at the top of the base. The rotating frame is fixedly connected to the fixed rod. The driving rod is fixedly connected to the protective cover and also fixedly connected to the round block. Both the round block and the driving rod are in sliding contact with the rotating frame.

[0010] Further, after the rotating frame is pressed downward, the rotating frame can press down the round block and the driving frame, enabling the driving frame to drive the rear side of the protective cover to move downward, making the bottom of the protective cover fit tightly against the top of the base, compressing the sealing ring on the base, so that the sealing ring can fill the gap between the protective cover and the base to seal the base and protect the permanent magnet motor.

[0011] Preferably, the limiting mechanism includes: a positioning plate, a positioning frame, a positioning spring, a fixed block, a pulling rod, a sliding rod, a driving frame, and a rotating block.

[0012] The positioning plate is fixedly installed on the protective cover. The positioning frame is slidably connected to the positioning plate and fixedly connected to the positioning spring. The positioning spring is fixedly connected to the fixed block. The pulling rod is rotatably connected to both the sliding rod and the positioning frame. The sliding rod is slidably connected to the fixed block and cooperates with the driving frame. The driving frame is fixedly connected to the rotating block, and the rotating block is rotatably connected to the rotating frame.

[0013] Further, after the positioning frame engages with the positioning plate, the positioning frame can connect the positioning plate to the rotating frame to block the rotation of the rotating frame on the positioning plate, thus achieving the positioning of the rotating frame, enabling the rotating frame to stably and continuously press down the round block and the driving rod, positioning the position of the protective cover so that the protective cover cannot be separated from the base, and stably sealing the base. After the rotating block is rotated clockwise, the rotating block can drive the driving frame to rotate clockwise, causing the right end of the driving frame to move downward, driving the sliding rod to move downward through the connecting block, enabling the sliding rod to pull the pulling rod, and the pulling rod can pull the positioning frame away from the positioning plate to unlock the rotating frame, allowing the rotating frame to release the driving rod and then release the protective cover, enabling the protective cover to be separated from the base and realizing the disassembly of the protective cover.

[0014] Preferably, the limiting mechanism includes: a mounting plate, a water-cooling pipe, and a fitting block.

[0015] The bottom of the mounting frame is in sliding contact with the bracket. The water-cooling pipe is fixedly connected to the mounting plate and in sliding contact with the permanent magnet motor. The fitting block is fixedly connected to the mounting plate and in sliding contact with the bracket. Docking grooves are provided on both the left and right sides of the fitting block.

[0016] Further, after the mounting plate is installed on the bracket, the water-cooling pipe is sleeved outside the permanent magnet motor. By introducing cooling water into the inner side of the water-cooling pipe, the permanent magnet motor can be cooled to increase its service life.

[0017] Preferably, the limiting mechanism includes: a mounting frame, a return spring, a spring seat, a fitting frame and an unlocking frame;

[0018] The mounting frame is slidably connected to the top of the base. The mounting frame is fixedly connected to the return spring. The return spring is fixedly connected to the spring seat. The spring seat is fixedly connected to the bracket. The fitting frame is fixedly installed on the front side of the mounting frame. The fitting frame is in sliding contact with the unlocking frame. The unlocking frame is slidably connected to the front side of the fitting block. The unlocking frame is in sliding contact with the two fitting frames.

[0019] Further, after the mounting frame engages with the fitting block, the mounting frame can connect the fitting block and the bracket, so as to block the fitting block and the mounting plate from separating from the bracket on the bracket, and the fitting block and the mounting plate can be stably installed on the bracket. The water-cooling pipe is stably sleeved outside the permanent magnet motor. After the unlocking frame is pressed downward, the unlocking frame can open the two unlocking frames, so that the two unlocking frames can move away from each other. The two unlocking frames can drive the two mounting frames to move away from each other, realizing the unlocking of the fitting block and the mounting plate, and realizing the disassembly of the mounting plate and the water-cooling pipe.

[0020] Preferably, a sealing ring is fixedly installed at the bottom of the protective cover. The bottom of the sealing ring is in sliding contact with the bracket, the base and the fitting plate respectively.

[0021] Further, the sealing ring is used to fill the gap between the protective cover and the base, so that the protective cover can seal the base.

[0022] Preferably, mounting blocks are fixedly installed on one side of the two mounting frames close to each other. The outer side of the mounting block is in sliding contact with the inner wall of the docking groove.

[0023] Further, after the mounting block is inserted into the inner side of the docking groove, the mounting block can block the fitting block and the mounting plate from separating from the bracket, and realize the installation of the mounting plate.

[0024] Preferably, a positioning groove is formed in the positioning plate. A positioning block is fixedly installed on the left side of the positioning frame. The outer side of the positioning block is in sliding contact with the inner wall of the positioning groove. A connecting block is fixedly installed on the rear side of the sliding rod. The outer side of the connecting block is slidably connected to the inner wall of the driving frame.

[0025] Further, after the positioning block is inserted into the inner side of the positioning groove, the positioning block can block the rotating frame from rotating, realizing the positioning of the rotating frame.

[0026] Preferably, symmetrically arranged docking blocks are fixedly installed on the mounting plate. Symmetrically arranged docking sleeves are fixedly installed on the top of the permanent magnet motor bracket. The outer side of the docking block is in sliding contact with the inner wall of the docking sleeve.

[0027] Further, the docking block and the docking sleeve are used for installing the mounting plate.

[0028] Preferably, the top of the base is rotatably connected to a symmetrically arranged blocking frame, the number of the blocking frames is two, and the rear side of the protective cover is fixedly mounted with symmetrically arranged blocking blocks, which are in sliding contact with the blocking frames.

[0029] Furthermore, the blocking frame is used to prevent the front side of the protective cover from being separated from the base, thereby achieving stable installation of the base.

[0030] In summary, the technical effects and advantages of the present invention are as follows:

[0031] 1. After the rotating frame is pressed downward, the rotating frame can press the round block and the driving frame downward, so that the driving frame can drive the rear side of the protective cover to move downward, so that the bottom of the protective cover can fit tightly with the top of the base, to compress the sealing ring on the base, so that the sealing ring can fill the gap between the protective cover and the base, to seal the base and protect the permanent magnet motor;

[0032] 2. After the positioning frame is engaged with the positioning plate, the positioning frame can connect the positioning plate with the rotating frame to block the rotation of the rotating frame on the positioning plate, so as to realize the positioning of the rotating frame, so that the rotating frame can stably and continuously press the round block and the driving rod downward, so as to locate the position of the protective cover, so that the protective cover cannot be separated from the base, and the base can be stably sealed. After the rotating block is rotated clockwise, the rotating block can drive the driving frame to rotate clockwise, so that the right end of the driving frame can move downward, and drive the sliding rod to move downward through the connecting block, so that the sliding rod can pull the pulling rod, and the pulling rod can pull the positioning frame to separate from the positioning plate, so as to unlock the rotating frame, so that the rotating frame can release the driving rod, so as to release the protective cover, so that the protective cover can be separated from the base, and the protective cover can be disassembled;

[0033] 3. After the mounting plate is mounted on the bracket, the water cooling pipe sleeve is arranged on the outside of the permanent magnet motor, and water cooling liquid is introduced into the inside of the water cooling pipe to cool the permanent magnet motor and increase the life of the permanent magnet motor;

[0034] 4. After the mounting frame is engaged with the fitting block, the mounting frame can connect the fitting block with the bracket to prevent the fitting block and the mounting plate from being separated from the bracket on the bracket, so that the fitting block and the mounting plate can be stably mounted on the bracket, and the water cooling pipe can be stably sleeved on the outside of the permanent magnet motor. After the unlocking frame is pressed downward, the unlocking frame can prop open the two unlocking frames so that the two unlocking frames can move away from each other. The two unlocking frames can drive the two mounting frames to move away from each other, thereby unlocking the fitting block and the mounting plate, and disassembling the mounting plate and the water cooling pipe.

[0035] In the present invention, the water-cooling pipe is installed outside the permanent magnet motor, and then the protective cover is installed on the top of the permanent magnet motor. The protective cover can protect the permanent magnet motor, prevent it from being eroded by a humid environment, and even prevent external impacts. The water-cooling pipe inside the protective cover can also add to the protective cover, further increasing the service life of the permanent magnet motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the three-dimensional front view structure diagram of the embodiment of the present application;

[0037] Figure 2 is the three-dimensional side view structure diagram of the embodiment of the present application;

[0038] Figure 3 is the three-dimensional rear view structure diagram of the embodiment of the present application;

[0039] Figure 4 is the three-dimensional top view structure diagram of the embodiment of the present application;

[0040] Figure 5 is the three-dimensional side sectional view structure diagram of the embodiment of the present application;

[0041] Figure 6 is the three-dimensional rear sectional view structure diagram of the embodiment of the present application;

[0042] Figure 7 is the enlarged three-dimensional rear view structure diagram of the embodiment of the present application;

[0043] Figure 8 is the enlarged three-dimensional rear upward view structure diagram of the embodiment of the present application;

[0044] Figure 9 is the three-dimensional front view structure diagram of the docking mechanism of the embodiment of the present application;

[0045] Figure 10 is the three-dimensional upward view structure diagram of the protective cover of the embodiment of the present application.

[0046] In the figure: 1, base; 2, bracket; 3, permanent magnet motor; 4, fitting plate; 5, protective cover; 6, sealing ring; 7, blocking block; 8, blocking frame; 9, fixed rod; 10, rotating frame; 11, driving rod; 12, round block; 13, positioning plate; 14, positioning frame; 15, positioning spring; 16, fixed block; 17, pulling rod; 18, sliding rod; 19, driving frame; 20, rotating block; 21, mounting plate; 22, water-cooling pipe; 23, docking block; 24, docking sleeve; 25, fitting block; 26, mounting frame; 27, return spring; 28, spring seat; 29, fitting frame; 30, unlocking frame. DETAILED DESCRIPTION OF THE INVENTION

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Embodiment

[0049] Reference Figures 1 - 10 , in this embodiment, a permanent magnet motor with a waterproof function is proposed, which includes a base 1. A bracket 2 is fixedly installed on the top of the base 1, and a permanent magnet motor 3 is fixedly installed on the top of the bracket 2. A protective cover 5 is provided at the bottom of the base 1. A fitting plate 4 is fixedly installed on the top of the base 1. The top of the fitting plate 4 is matched with the output shaft of the permanent magnet motor 3, and the outside of the fitting plate 4 is in sliding contact with the protective cover 5;

[0050] A limiting mechanism and a fixing mechanism are respectively provided at the rear side of the protective cover 5. The limiting mechanism is respectively matched with the protective cover 5, the base 1 and the fixing mechanism. A cooling mechanism and a mounting mechanism are respectively provided at the top of the bracket 2. The cooling mechanism is respectively matched with the mounting mechanism and the permanent magnet motor 3.

[0051] With the above structure, by installing the water cooling pipe 22 on the outside of the permanent magnet motor 3 and then installing the protective cover 5 on the top of the permanent magnet motor 3, the protective cover 5 can protect the permanent magnet motor 3, prevent the permanent magnet motor 3 from being eroded by a humid environment, and even prevent external impacts. The water cooling pipe 22 inside the protective cover 5 can also increase the service life of the protective cover 5 and further increase the service life of the permanent magnet motor 3.

[0052] As a preferred implementation manner of this embodiment, the limiting mechanism includes: a fixing rod 9, a rotating frame 10, a driving rod 11 and a round block 12;

[0053] The fixing rod 9 is fixedly installed on the top of the base 1. The rotating frame 10 is fixedly connected to the fixing rod 9. The driving rod 11 is fixedly connected to the protective cover 5. The driving rod 11 is fixedly connected to the round block 12. The round block 12 and the driving rod 11 are both in sliding contact with the rotating frame 10. After the rotating frame 10 is pressed downward, the rotating frame 10 can press the round block 12 and the driving frame 19 downward, so that the driving frame 19 can drive the rear side of the protective cover 5 to move downward, so that the bottom of the protective cover 5 can be closely attached to the top of the base 1, so as to compress the sealing ring 6 on the base 1, so that the sealing ring 6 can fill the gap between the protective cover 5 and the base 1 to seal the base 1 and protect the permanent magnet motor 3.

[0054] As a preferred implementation manner of this embodiment, the limiting mechanism includes: a positioning plate 13, a positioning frame 14, a positioning spring 15, a fixing block 16, a pulling rod 17, a sliding rod 18, a driving frame 19, and a rotating block 20;

[0055] The positioning plate 13 is fixedly installed on the protective cover 5. The positioning frame 14 is slidably connected to the positioning plate 13. The positioning frame 14 is fixedly connected to the positioning spring 15. The positioning spring 15 is fixedly connected to the fixing block 16. The pulling rod 17 is rotatably connected to the sliding rod 18 and the positioning frame 14 respectively. The sliding rod 18 is slidably connected to the fixing block 16. The sliding rod 18 cooperates with the driving frame 19. The driving frame 19 is fixedly connected to the rotating block 20. The rotating block 20 is rotatably connected to the rotating frame 10. After the positioning frame 14 engages with the positioning plate 13, the positioning frame 14 can connect the positioning plate 13 and the rotating frame 10 to block the rotation of the rotating frame 10 on the positioning plate 13, thereby realizing the positioning of the rotating frame 10, so that the rotating frame 10 can stably and continuously press down the round block 12 and the driving rod 11, and then the position of the protective cover 5 can be positioned, so that the protective cover 5 cannot be separated from the base 1, and the base 1 can be stably sealed. After the rotating block 20 is rotated clockwise, the rotating block 20 can drive the driving frame 19 to rotate clockwise, so that the right end of the driving frame 19 can move downward, and then drive the sliding rod 18 to move downward through the connecting block, so that the sliding rod 18 can pull the pulling rod 17, and the pulling rod 17 can pull the positioning frame 14 to disengage from the positioning plate 13, realizing the unlocking of the rotating frame 10, so that the rotating frame 10 can release the driving rod 11, and then release the protective cover 5, so that the protective cover 5 can be separated from the base 1, realizing the disassembly of the protective cover 5.

[0056] As a preferred implementation manner of this embodiment, the limiting mechanism includes: a mounting plate 21, a water-cooling pipe 22, and a fitting block 25;

[0057] The bottom of the mounting frame 26 is in sliding contact with the bracket 2. The water-cooling pipe 22 is fixedly connected to the mounting plate 21. The water-cooling pipe 22 is in sliding contact with the permanent magnet motor 3. The fitting block 25 is fixedly connected to the mounting plate 21. The fitting block 25 is in sliding contact with the bracket 2. Docking grooves are formed on both the left side and the right side of the fitting block 25. After the mounting plate 21 is installed on the bracket 2, the water-cooling pipe 22 is sleeved outside the permanent magnet motor 3. By introducing cooling liquid into the inner side of the water-cooling pipe 22, the permanent magnet motor 3 can be cooled, increasing the service life of the permanent magnet motor 3.

[0058] As a preferred implementation manner of this embodiment, the limiting mechanism includes: a mounting frame 26, a return spring 27, a spring seat 28, a fitting frame 29, and an unlocking frame 30;

[0059] The mounting bracket 26 is slidably connected to the top of the base 1. The mounting bracket 26 is fixedly connected to the return spring 27. The return spring 27 is fixedly connected to the spring seat 28. The spring seat 28 is fixedly connected to the bracket 2. The fitting bracket 29 is fixedly installed on the front side of the mounting bracket 26. The fitting bracket 29 is in sliding contact with the unlocking bracket 30. The unlocking bracket 30 is slidably connected to the front side of the fitting block 25. The unlocking bracket 30 is in sliding contact with two fitting brackets 29. After the mounting bracket 26 is engaged with the fitting block 25, the mounting bracket 26 can connect the fitting block 25 and the bracket 2 to prevent the fitting block 25 and the mounting plate 21 from detaching from the bracket 2, and thus the fitting block 25 and the mounting plate 21 can be stably installed on the bracket 2. The water-cooling pipe 22 is stably sleeved outside the permanent magnet motor 3. After the unlocking bracket 30 is pressed downward, the unlocking bracket 30 can expand the two unlocking brackets 30, causing the two unlocking brackets 30 to move away from each other. The two unlocking brackets 30 can drive the two mounting brackets 26 to move away from each other, realizing the unlocking of the fitting block 25 and the mounting plate 21, and thus the disassembly of the mounting plate 21 and the water-cooling pipe 22 can be achieved.

[0060] In this embodiment, a sealing ring 6 is fixedly installed at the bottom of the protective cover 5. The bottom of the sealing ring 6 is in sliding contact with the bracket 2, the base 1, and the fitting plate 4 respectively. The sealing ring 6 is used to fill the gap between the protective cover 5 and the base 1, so that the protective cover 5 can seal the base 1.

[0061] In this embodiment, mounting blocks are fixedly installed on the sides of the two mounting brackets 26 that are close to each other. The outer sides of the mounting blocks are in sliding contact with the inner walls of the docking grooves. After the mounting blocks are inserted into the inner sides of the docking grooves, the mounting blocks can prevent the fitting block 25 and the mounting plate 21 from detaching from the bracket 2, and thus the installation of the mounting plate 21 can be achieved.

[0062] In this embodiment, a positioning groove is formed on the positioning plate 13. A positioning block is fixedly installed on the left side of the positioning frame 14. The outer side of the positioning block is in sliding contact with the inner wall of the positioning groove. A connecting block is fixedly installed on the rear side of the sliding rod 18. The outer side of the connecting block is slidably connected to the inner wall of the driving frame 19. After the positioning block is inserted into the inner side of the positioning groove, the positioning block can prevent the rotating frame 10 from rotating, realizing the positioning of the rotating frame 10.

[0063] In this embodiment, symmetrically arranged docking blocks 23 are fixedly installed on the mounting plate 21. Symmetrically arranged docking sleeves 24 are fixedly installed on the top of the bracket 2 of the permanent magnet motor 3. The outer sides of the docking blocks 23 are in sliding contact with the inner walls of the docking sleeves 24. The docking blocks 23 and the docking sleeves 24 are used for installing the mounting plate 21.

[0064] In this embodiment, a symmetrically arranged blocking frame 8 is rotatably connected to the top of the base 1. The number of the blocking frames 8 is two. Symmetrically arranged blocking blocks are fixedly installed on the rear side of the protective cover 5. The blocking blocks are in sliding contact with the blocking frames 8. The blocking frames 8 are used to block the front side of the protective cover 5 from separating from the base 1, so as to realize the stable installation of the base 1.

[0065] Working principle: When the permanent magnet motor 3 needs to be used, only the base 1 needs to be installed at the position where the permanent magnet motor 3 is used, and then the permanent magnet motor 3 can be used. A protective cover 5 is installed outside the permanent magnet motor 3, and a water-cooling pipe 22 is installed inside the protective cover 5. The water-cooling pipe 22 is sleeved outside the permanent magnet motor 3. By introducing a water-cooling liquid inside the water-cooling pipe 22, the permanent magnet motor 3 can be cooled down, increasing the service life of the permanent magnet motor 3. The protective cover 5 can protect the permanent magnet motor 3, preventing it from being eroded by a humid environment and even preventing external impacts. The water-cooling pipe 22 inside the protective cover 5 can also add protection to the protective cover 5, further increasing the service life of the permanent magnet motor 3. If the protective cover 5 needs to be disassembled for maintenance of the permanent magnet motor 3, only the rotating block 20 needs to be rotated on the rotating frame 10. After the rotating block 20 is rotated clockwise, the rotating block 20 can drive the driving frame 19 to rotate clockwise, so that the right end of the driving frame 19 can move downward, driving the sliding rod 18 to move downward through the connecting block, so that the sliding rod 18 can pull the pulling rod 17, and the pulling rod 17 can pull the positioning frame 14 away from the positioning plate 13 to unlock the rotating frame 10, enabling the rotating frame 10 to release the driving rod 11 and then release the protective cover 5. By rotating the two blocking frames 8, the two blocking frames 8 can be disengaged from the two blocking blocks, enabling the protective cover 5 to be disengaged from the base 1 to disassemble the protective cover 5. If the water-cooling pipe 22 needs to be disassembled for maintenance, only the unlocking frame 30 needs to be pressed on the fitting block 25. After the unlocking frame 30 is pressed downward, the unlocking frame 30 can expand the two unlocking frames 30, causing the two unlocking frames 30 to move away from each other. The two unlocking frames 30 can drive the two mounting frames 26 to move away from each other to unlock the fitting block 25 and the mounting plate 21, and then the mounting plate 21 and the water-cooling pipe 22 can be disassembled. After the water-cooling pipe 22 and the permanent magnet motor 3 are both maintained, the water-cooling pipe 22 can be sleeved outside the permanent magnet motor 3. The two docking blocks 23 on the mounting plate 21 are docked with the docking sleeve 24. At this time, the mounting frame 26 can automatically engage with the fitting block 25. After the mounting frame 26 engages with the fitting block 25, the mounting frame 26 can connect the fitting block 25 to the bracket 2 to prevent the fitting block 25 and the mounting plate 21 from disengaging from the bracket 2 on the bracket 2, and then the fitting block 25 and the mounting plate 21 can be stably installed on the bracket 2, and the water-cooling pipe 22 can be stably sleeved outside the permanent magnet motor 3. At this time, the protective cover 5 is inserted into the top of the two water-cooling pipes 22 and then fitted with the base 1. Then, the rotating frame 10 is rotated counterclockwise. After the left end of the rotating frame 10 is pressed downward, the rotating frame 10 can press downward the round block 12 and the driving frame 19, so that the driving frame 19 can drive the rear side of the protective cover 5 to move downward, making the bottom of the protective cover 5 fit tightly with the top of the base 1, compressing the sealing ring 6 on the base 1, so that the sealing ring 6 can fill the gap between the protective cover 5 and the base 1 to seal the base 1 and protect the permanent magnet motor 3.At this time, the positioning frame 14 will automatically engage with the positioning plate 13. After the positioning frame 14 engages with the positioning plate 13, the positioning frame 14 can connect the positioning plate 13 to the rotating frame 10 to block the rotation of the rotating frame 10 on the positioning plate 13, thereby achieving the positioning of the rotating frame 10, enabling the rotating frame 10 to stably and continuously press down the round block 12 and the driving rod 11, positioning the position of the protective cover 5, preventing the protective cover 5 from detaching from the base 1, and stably sealing the base 1, greatly increasing the service life of the permanent magnet motor 3.

[0066] It should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A permanent magnet motor with a waterproof function, comprising a base (1), characterized in that, A bracket (2) is fixedly installed at the top of the base (1), and a permanent magnet motor (3) is fixedly installed at the top of the bracket (2). A protective cover (5) is provided at the bottom of the base (1). A fitting plate (4) is fixedly installed at the top of the base (1). The top of the fitting plate (4) is matched with the output shaft of the permanent magnet motor (3), and the outer side of the fitting plate (4) is in sliding contact with the protective cover (5). A limiting mechanism and a fixing mechanism are respectively provided at the rear side of the protective cover (5). The limiting mechanism is respectively matched with the protective cover (5), the base (1) and the fixing mechanism. A cooling mechanism and a mounting mechanism are respectively provided at the top of the bracket (2). The cooling mechanism is respectively matched with the mounting mechanism and the permanent magnet motor (3).

2. The permanent magnet motor with a waterproof function according to claim 1, characterized in that, The limiting mechanism includes: a fixing rod (9), a rotating frame (10), a driving rod (11) and a round block (12). The fixing rod (9) is fixedly installed at the top of the base (1). The rotating frame (10) is fixedly connected with the fixing rod (9). The driving rod (11) is fixedly connected with the protective cover (5). The driving rod (11) is fixedly connected with the round block (12). The round block (12) and the driving rod (11) are both in sliding contact with the rotating frame (10).

3. A permanent magnet motor with a waterproof function according to claim 1, characterized in that, The limiting mechanism includes: a positioning plate (13), a positioning frame (14), a positioning spring (15), a fixing block (16), a pulling rod (17), a sliding rod (18), a driving frame (19) and a rotating block (20). The positioning plate (13) is fixedly installed on the protective cover (5). The positioning frame (14) is slidably connected with the positioning plate (13). The positioning frame (14) is fixedly connected with the positioning spring (15). The positioning spring (15) is fixedly connected with the fixing block (16). The pulling rod (17) is rotatably connected with the sliding rod (18) and the positioning frame (14). The sliding rod (18) is slidably connected with the fixing block (16). The sliding rod (18) is matched with the driving frame (19). The driving frame (19) is fixedly connected with the rotating block (20). The rotating block (20) is rotatably connected to the rotating frame (10).

4. A permanent magnet motor with a waterproof function according to claim 1, characterized in that, The limiting mechanism includes: a mounting plate (21), a water cooling pipe (22) and a fitting block (25). The bottom of the mounting frame (26) is in sliding contact with the bracket (2). The water cooling pipe (22) is fixedly connected with the mounting plate (21). The water cooling pipe (22) is in sliding contact with the permanent magnet motor (3). The fitting block (25) is fixedly connected with the mounting plate (21). The fitting block (25) is in sliding contact with the bracket (2). Docking grooves are formed on both the left side and the right side of the fitting block (25).

5. A permanent magnet motor with a waterproof function according to claim 1, characterized in that, The limiting mechanism includes: a mounting frame (26), a return spring (27), a spring seat (28), a fitting frame (29) and an unlocking frame (30). The mounting bracket (26) is slidably connected to the top of the base (1). The mounting bracket (26) is fixedly connected to the return spring (27). The return spring (27) is fixedly connected to the spring seat (28). The spring seat (28) is fixedly connected to the bracket (2). The fitting bracket (29) is fixedly installed on the front side of the mounting bracket (26). The fitting bracket (29) is in sliding contact with the unlocking bracket (30). The unlocking bracket (30) is slidably connected to the front side of the fitting block (25). The unlocking bracket (30) is in sliding contact with the two fitting brackets (29).

6. A permanent magnet motor with a waterproof function according to claim 1, characterized in that, A sealing ring (6) is fixedly installed at the bottom of the protective cover (5). The bottom of the sealing ring (6) is in sliding contact with the bracket (2), the base (1), and the fitting plate (4) respectively.

7. A permanent magnet motor with a waterproof function according to claim 4, characterized in that, Mounting blocks are fixedly installed on one side of the two mounting brackets (26) close to each other. The outer side of the mounting block is in sliding contact with the inner wall of the docking groove.

8. A permanent magnet motor with a waterproof function according to claim 3, characterized in that, A positioning groove is formed in the positioning plate (13). A positioning block is fixedly installed on the left side of the positioning bracket (14). The outer side of the positioning block is in sliding contact with the inner wall of the positioning groove. A connecting block is fixedly installed on the rear side of the sliding rod (18). The outer side of the connecting block is slidably connected to the inner wall of the driving bracket (19).

9. A permanent magnet motor with a waterproof function according to claim 4, characterized in that, Symmetrically arranged docking blocks (23) are fixedly installed on the mounting plate (21). Symmetrically arranged docking sleeves (24) are fixedly installed on the top of the bracket (2) of the permanent magnet motor (3). The outer side of the docking block (23) is in sliding contact with the inner wall of the docking sleeve (24).

10. A permanent magnet motor with a waterproof function according to claim 1, characterized in that, Symmetrically arranged blocking brackets (8) are rotatably connected to the top of the base (1). The number of the blocking brackets (8) is two. Symmetrically arranged blocking blocks are fixedly installed on the rear side of the protective cover (5). The blocking blocks are in sliding contact with the blocking brackets (8).

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