Water-cooling heat dissipation structure of permanent magnet motor

Abstract

The invention relates to the technical field of permanent magnet motors, in particular to a permanent magnet motor water-cooling heat dissipation structure which comprises a motor shell, and a heat dissipation mechanism is arranged on the motor shell. A fixing mechanism and a mounting mechanism are mounted on the motor shell; two filtering mechanisms are symmetrically fixed on the motor shell; a fixing block is mounted on the filtering mechanism; a driving mechanism is rotationally arranged on the fixed block; a clamping mechanism is fixed on the driving mechanism; through the fixing mechanism and the filtering mechanism, the motor shell can be mounted on the motor through a tool; a water pipe is inserted into a fixing block, a tool is used for rotating a driving mechanism, then the driving mechanism drives a clamping mechanism to move, the clamping mechanism fixes the water pipe, and then water can be filtered through a filtering mechanism and then discharged into a motor shell; water used for heat dissipation can flow into the heat dissipation mechanism through the filtering mechanism, and when the motor is used, the heat dissipation mechanism conducts heat dissipation on the motor shell.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet motors, in particular to a water cooling and heat dissipation structure of a permanent magnet motor. Background Art

[0002] A permanent magnet motor is an electric motor whose core feature is the use of permanent magnets to generate a magnetic field, thereby simplifying the motor design and improving efficiency. The main components of a permanent magnet motor include permanent magnets as part of the rotor or stator, and three-phase windings as another part of the motor. This type of motor does not require an external power supply or brushes to generate torque because the permanent magnets on the rotor directly generate the magnetic field. The advantages of permanent magnet motors include high power density, high control accuracy, low noise, high efficiency, and simple structure, which make permanent magnet motors very popular in applications that require precise control of speed and torque, such as CNC machine tools, precision instruments, etc.

[0003] However, the existing motor casing is installed on the outside of the motor rotor through a fixing component. When the internal components are damaged and the casing needs to be removed, in order to prevent the position of the reinstalled front cover from being offset, assembly marks need to be made at key positions during the disassembly and assembly process. The operation steps are cumbersome and it is not convenient to quickly disassemble and assemble the motor casing; when the internal heat of the motor is absorbed by the spiral water-cooling pipe, the contact area between the water-cooling pipe and the motor casing is small, and the heat absorption effect is poor, which is not conducive to improving the internal heat dissipation effect of the machine body; when connecting the water pipe to the water inlet and outlet, the water pipe is directly connected to the connecting pipe mouth. When the water pressure is high, the water pipe may easily fall off from the pipe mouth; the water pipe is fixed by tightening the wire, which is also inconvenient to disassemble. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a water-cooling heat dissipation structure for a permanent magnet motor.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a water-cooled heat dissipation structure of a permanent magnet motor, comprising a motor housing, a heat dissipation mechanism is provided on the motor housing; a fixing mechanism and a mounting mechanism are installed on the motor housing; two filtering mechanisms are symmetrically fixed on the motor housing; a fixing block is installed on the filtering mechanism; a driving mechanism is rotatably provided on the fixing block; a clamping mechanism is fixed on the driving mechanism;

[0006] Specifically, the clamping mechanism includes a slider and a screw rod, the fixed block is rotatably connected to the screw rod, the threads at both ends of the screw rod are in opposite directions, two sliders are threadedly connected to the screw rod, a back plate is fixedly installed on the slider, a rubber pad is bonded to the back plate, the fixed block is provided with a socket and a slide groove, a slider is slidably arranged on the slide groove, and the rubber pad and the back plate are arranged in an arc structure.

[0007] Specifically, the driving mechanism includes a worm and a worm wheel, a worm wheel rotates inside the fixed block, a worm is meshed on the worm wheel, a rotating block is fixedly connected to the worm, the worm wheel is fixedly connected to the lead screw, and the rotating block and the worm are both rotationally connected to the fixed block.

[0008] Specifically, the filtering mechanism includes a connecting plate and a connecting pipe, two connecting plates are symmetrically fixedly installed on the motor housing, a connecting pipe is fixedly installed on the connecting plate, a clamping rod is clamped and connected to the connecting pipe, a filter is fixedly installed on the clamping rod, a water receiving pipe is threadedly connected to the connecting pipe, the connecting plate is connected to the inside of the motor housing, and the cross-sectional diameter of the clamping rod is equal to the cross-sectional diameter of the connecting pipe.

[0009] Specifically, the heat dissipation mechanism includes a motor body and a water channel. The motor body is mounted on the motor housing. A plurality of water channels are arranged in a circumferential array on the motor housing, and a drainage groove is arranged between two adjacent water channels.

[0010] Specifically, the fixing mechanism includes a connecting block and a machine cover. The motor housing is fixedly connected to the machine cover, a handle and a base. Two connecting blocks are fixedly installed on the machine cover, and the handle is fixedly connected to a lifting ring.

[0011] Specifically, the mounting mechanism includes an insertion rod and a clamping block. The insertion rod is fixedly installed on one end of the motor housing facing away from the machine cover. The insertion rod is clamped with a clamping block. The clamping block is fixedly connected to a clamping ring. A cover plate is fixedly installed on the clamping ring. A positioning rod is rotatably connected to the cover plate and the clamping block. An output shaft is rotatably connected to the motor body. A cover plate and a clamping ring are sleeved on the output shaft. A plurality of the insertion rods and clamping blocks are arranged in a circular array about the axis of the output shaft, and the positioning rod is threadedly connected to the insertion rod.

[0012] The beneficial effects of the present invention are:

[0013] (1) The water-cooling heat dissipation structure of a permanent magnet motor described in the present invention can be installed on the motor through a fixing mechanism and a filtering mechanism by a tool, so as to facilitate the limiting and fixing of the motor, that is: when installing the motor housing, the motor housing can be sleeved on the output shaft installed on the motor body, and then the motor housing and the machine cover are connected together by fixing bolts, so as to facilitate the fixing of the bottom end of the motor housing; a plurality of plug rods are fixed in a circular array at one end of the motor housing away from the machine cover, and the operator manually sleeves the clamping ring on the output shaft, and then clamps the clamping block fixed on the clamping ring on the top of the plug rod. Since a cover plate is installed on the top of the clamping ring, a plurality of positioning rods are inserted into the through-hole portion provided on the cover plate, and the positioning rod passes through the cover plate and the clamping block. The operator uses a tool to rotate the top of the positioning rod so that the end of the positioning rod can be threadedly installed inside the plug rod, so as to facilitate the fixing of the cover plate and the clamping ring on the motor housing; a base is installed on the motor housing, and the motor housing can be limited and fixed by the base.

[0014] (2) A permanent magnet motor water cooling structure described in the present invention inserts a water pipe into a fixed block, uses a tool to rotate a driving mechanism, and then drives a clamping mechanism to move. The clamping mechanism fixes the water pipe, and then water can be filtered by a filtering mechanism and discharged into the motor housing, thereby facilitating water inflow and outflow from the motor housing. That is, when installing the water pipe on the water receiving pipe, the water pipe can be first sleeved on the side wall of the water receiving pipe and then pushed into the insertion hole provided in the fixed block. When the end of the water pipe hits the inner wall of the connecting plate, the operator can use a tool to rotate the rotating block, and the rotating block drives the worm to rotate inside the fixed block. A worm wheel is fixed on the worm. When the worm drives the worm wheel to rotate, the worm wheel can drive the worm to rotate. The movable screw rotates in the two slide grooves provided in the fixed block, and a slider is threadedly connected to the screw. Since the threads at both ends of the screw are in opposite directions, the screw drives the two sliders to slide towards each other in the slide groove, and the slider drives the abutment plate fixed on the top to slide, so that the rubber pad bonded on the abutment plate contacts the side wall of the water pipe, so that the water pipe can be clamped and fixed on the side wall of the water connecting pipe; after fixing, turn on the faucet to discharge water into the water pipe, and a clamping rod is installed on the top of the connecting pipe threadedly connected to the water connecting pipe. When the water in the water pipe is discharged to the connecting pipe, the filter installed on the clamping rod filters the impurities in the water, which is beneficial to prevent the internal blockage of the heat dissipation water channel, thereby facilitating the improvement of the heat dissipation effect in the motor housing.

[0015] (3) In the water-cooled heat dissipation structure of a permanent magnet motor described in the present invention, water for heat dissipation is discharged into the motor housing through a filtering mechanism, and then can flow into the heat dissipation mechanism. When the motor is in use, the heat dissipation mechanism dissipates heat from the motor housing, and then the water inside the motor housing is discharged through the filtering mechanism, so that the water inside can circulate, that is, the water is connected to the inside of the motor housing through a connecting plate, and the water flows from the connecting plate into the motor housing. Since a plurality of water channels are arranged in a circular array in the motor housing, when one water channel is full, the water can be discharged into another water channel through a drainage groove provided between two adjacent water channels, so that the water channels arranged in an annular shape in the motor housing are filled with water, and the water in the water channels can take away the heat dissipated by the motor housing, so as to improve the heat dissipation effect inside the motor; the water that absorbs heat is discharged to the connecting pipe through another connecting plate, and then the water in the water channel is discharged through a drainage hose, so that the water inside the motor housing can circulate, which is beneficial to improving the heat dissipation efficiency inside the motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a water-cooling and heat dissipation structure for a permanent magnet motor provided by the present invention;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0019] Figure 3 It is a schematic diagram of the connection structure between the motor housing and the base of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection structure between the water receiving pipe and the clamping rod of the present invention;

[0021] Figure 5 It is a schematic diagram of the connection structure between the handle and the hanging ring of the present invention;

[0022] Figure 6 for Figure 5 An enlarged schematic diagram of the structure of part B is shown;

[0023] Figure 7 It is a schematic diagram of the connection structure between the insertion rod and the clamping block of the present invention;

[0024] Figure 8 It is a schematic diagram of the connection structure between the clamping block and the clamping ring of the present invention;

[0025] Fig. 9 It is a schematic diagram of the connection structure between the motor housing and the plug rod of the present invention.

[0026] In the figure: 1. motor housing; 2. fixing mechanism; 201. connecting block; 202. machine cover; 203. handle; 204. lifting ring; 205. base; 3. filtering mechanism; 301. connecting plate; 302. water pipe; 303. clamping rod; 304. filter screen; 305. connecting pipe; 4. fixing block; 5. mounting mechanism; 501. plug rod; 502. clamping block; 503. cover plate; 504. output shaft; 505. positioning rod; 506. clamping ring; 6. driving mechanism; 601. rotating block; 602. worm; 603. worm wheel; 7. clamping mechanism; 701. jack; 702. rubber pad; 703. abutment plate; 704. slider; 705. slide groove; 706. screw rod; 8. heat dissipation mechanism; 801. motor body; 802. waterway; 803. drainage groove. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-Figure 9 As shown, a water-cooled heat dissipation structure of a permanent magnet motor described in the present invention comprises a motor housing 1, on which a heat dissipation mechanism 8 is provided; a fixing mechanism 2 and a mounting mechanism 5 are installed on the motor housing 1; two filtering mechanisms 3 are symmetrically fixed on the motor housing 1; a fixing block 4 is installed on the filtering mechanism 3; a driving mechanism 6 is rotatably provided on the fixing block 4; and a clamping mechanism 7 is fixed on the driving mechanism 6;

[0029] Specifically, the clamping mechanism 7 includes a slider 704 and a screw rod 706. The fixed block 4 is rotatably connected to the screw rod 706. The threads at both ends of the screw rod 706 are in opposite directions. Two sliders 704 are threadedly connected to the screw rod 706. A support plate 703 is fixedly installed on the slider 704. A rubber pad 702 is bonded to the support plate 703. The fixed block 4 is provided with a socket 701 and a slide groove 705. The slider 704 slides on the slide groove 705. The rubber pad 702 and the support plate 703 are arranged in an arc structure.

[0030] Specifically, the driving mechanism 6 includes a worm 602 and a worm wheel 603. The worm wheel 603 rotates inside the fixed block 4, the worm 602 is meshed on the worm wheel 603, the worm 602 is fixedly connected to the rotating block 601, the worm wheel 603 is fixedly connected to the screw 706, and the rotating block 601 and the worm 602 are both rotatably connected to the fixed block 4.

[0031] Specifically, the filtering mechanism 3 includes a connecting plate 301 and a connecting pipe 305. Two connecting plates 301 are symmetrically fixedly installed on the motor housing 1. The connecting plate 301 is fixedly installed with a connecting pipe 305. The connecting pipe 305 is clamped and connected with a clamp rod 303. The clamp rod 303 is fixedly installed with a filter screen 304. The connecting pipe 305 is threadedly connected with a water receiving pipe 302. The connecting plate 301 is communicated with the inside of the motor housing 1. The cross-sectional diameter of the clamp rod 303 is equal to the cross-sectional diameter of the connecting pipe 305. The water pipe is inserted into the fixing block 4, and the driving mechanism 6 is rotated with a tool to drive the clamping mechanism 7 to move. The clamping mechanism 7 fixes the water pipe, so that the water can be filtered by the filtering mechanism 3 and then discharged into the motor housing 1, thereby facilitating the water inlet and outlet of the motor housing 1. That is, when the water pipe is installed on the water receiving pipe 302, the water pipe can be first sleeved on the side wall of the water receiving pipe 302 and then pushed into the insertion hole 701 provided in the fixing block 4. When the end of the water pipe hits the inner wall of the connecting plate 301, the operator can use a tool to rotate the rotating The rotating block 601 drives the worm 602 to rotate inside the fixed block 4. A worm wheel 603 is fixed on the worm 602. When the worm 602 drives the worm wheel 603 to rotate, the worm wheel 603 can drive the screw 706 to rotate in the two slide grooves 705 provided in the fixed block 4. The screw 706 is threadedly connected with a slider 704. Since the threads at both ends of the screw 706 are in opposite directions, the screw 706 drives the two sliders 704 to slide toward each other in the slide grooves 705. The slider 704 drives the top fixed plate 703 to slide, thereby The rubber pad 702 bonded to the abutment plate 703 is made to contact with the side wall of the water pipe, so that the water pipe can be clamped and fixed on the side wall of the water receiving pipe 302; after fixing, turn on the faucet to discharge water into the water pipe, and a clamping rod 303 is installed on the top of the connecting pipe 305 threadedly connected to the water receiving pipe 302. When the water in the water pipe is discharged to the connecting pipe 305, the filter 304 installed on the clamping rod 303 filters the impurities in the water, which is beneficial to prevent the heat dissipation water channel 802 from being blocked, thereby facilitating the improvement of the heat dissipation effect in the motor housing 1.

[0032] Specifically, the heat dissipation mechanism 8 includes a motor body 801 and a water channel 802. The motor body 801 is installed on the motor housing 1. A plurality of water channels 802 are arranged in a circumferential array on the motor housing 1. A drainage groove 803 is arranged between two adjacent water channels 802. The water used for heat dissipation is discharged into the motor housing 1 through the filtering mechanism 3, and then can flow into the heat dissipation mechanism 8. When the motor is in use, the heat dissipation mechanism 8 dissipates heat from the motor housing 1, and then the water inside the motor housing 1 is discharged through the filtering mechanism 3, so that the water inside the motor housing 1 can circulate, that is, the water is connected with the inside of the motor housing 1 through the connecting plate 301, and the water flows from the connecting plate 301 into the motor housing 1. Since a plurality of water channels 802 are arranged in a circular array in the motor housing 1, when one water channel 802 is full, water can be discharged to another water channel 802 through a drainage groove 803 provided between two adjacent water channels 802, so that the water channels 802 arranged in a ring shape in the motor housing 1 are all filled with water, and the water in the water channel 802 can take away the heat dissipated by the motor housing 1, thereby improving the heat dissipation effect inside the motor; the water that absorbs heat is discharged to the connecting pipe 305 through another connecting plate 301, and then the water in the water channel 802 is discharged through the drainage hose, thereby facilitating the circulation of water inside the motor housing 1, which is beneficial to improving the heat dissipation efficiency inside the motor housing 1.

[0033] Specifically, the fixing mechanism 2 includes a connecting block 201 and a machine cover 202 . The motor housing 1 is fixedly connected with the machine cover 202 , a handle 203 and a base 205 . Two connecting blocks 201 are fixedly installed on the machine cover 202 , and a lifting ring 204 is fixedly connected to the handle 203 .

[0034] Specifically, the mounting mechanism 5 includes an insertion rod 501 and a clamping block 502. The insertion rod 501 is fixedly installed at one end of the motor housing 1 away from the machine cover 202. The clamping block 502 is engaged and connected to the insertion rod 501. The clamping block 502 is fixedly connected to the clamping ring 506. A cover plate 503 is fixedly installed on the clamping ring 506. A positioning rod 505 is rotatably connected to the cover plate 503 and the clamping block 502. An output shaft 504 is rotatably connected to the motor body 801. The cover plate 503 and the clamping ring 506 are sleeved on the output shaft 504. A plurality of the insertion rods 501 and the clamping block 502 are arranged in a circular array about the axis of the output shaft 504. The positioning rod 505 is threadedly connected to the insertion rod 501. Through the fixing mechanism 2 and the filtering mechanism 3, the motor housing 1 can be installed on the motor by a tool, so as to facilitate the limited fixing of the motor, that is, when installing the motor housing 1, the motor housing 1 can be sleeved on the motor body The output shaft 504 installed on the body 801 is then connected to the motor housing 1 and the machine cover 202 by fixing bolts, so as to facilitate fixing the bottom end of the motor housing 1; a plurality of plug rods 501 are fixed in a circular array at one end of the motor housing 1 away from the machine cover 202, and the operator manually sleeves the snap ring 506 on the output shaft 504, and then clamps the clamping block 502 fixed on the snap ring 506 on the top of the plug rod 501. Since a cover plate 503 is installed on the top of the snap ring 506, a plurality of positioning rods 505 are inserted into the through-hole portion provided on the cover plate 503. The positioning rod 505 passes through the cover plate 503 and the clamping block 502. The operator uses a tool to rotate the top of the positioning rod 505 so that its end can be threadedly installed inside the plug rod 501, thereby facilitating fixing the cover plate 503 and the snap ring 506 on the motor housing 1; a base 205 is installed on the motor housing 1, and the motor housing 1 can be limited and fixed by the base 205.

[0035] When the present invention is used, first, when installing the motor housing 1, the motor housing 1 can be sleeved on the output shaft 504 installed on the motor body 801, and then the motor housing 1 and the machine cover 202 are connected together by fixing bolts, so as to facilitate the fixing of the bottom end of the motor housing 1; a plurality of plug rods 501 are fixed in a circumferential array at one end of the motor housing 1 away from the machine cover 202, and the operator manually sleeves the clamping ring 506 on the output shaft 504, and then clamps the clamping block 502 fixed on the clamping ring 506 into the plug rod 501. At the top, since a cover plate 503 is installed on the top of the snap ring 506, a plurality of positioning rods 505 are inserted into the through-holes provided on the cover plate 503, and the positioning rods 505 penetrate the cover plate 503 and the block 502. The operator rotates the top of the positioning rod 505 with a tool so that the end of the positioning rod 505 can be threadedly installed inside the insertion rod 501, thereby facilitating the fixing of the cover plate 503 and the snap ring 506 on the motor housing 1; a base 205 is installed on the motor housing 1, and the motor housing 1 can be limited and fixed by the base 205;

[0036] When installing the water pipe on the water receiving pipe 302, the water pipe can be first sleeved on the side wall of the water receiving pipe 302 and then pushed into the socket 701 provided in the fixed block 4. When the end of the water pipe hits the inner wall of the connecting plate 301, the operator can use a tool to rotate the rotating block 601, and the rotating block 601 drives the worm 602 to rotate inside the fixed block 4. A worm wheel 603 is fixed on the worm 602. When the worm 602 drives the worm wheel 603 to rotate, the worm wheel 603 can drive the screw rod 706 to rotate in the two sliding grooves 705 provided in the fixed block 4. The screw rod 706 is threadedly connected with a slider 704. Since the threads at both ends of the screw rod 706 are in opposite directions, the screw rod 706 drives the screw rod 706 to rotate. The two sliders 704 are moved to slide toward each other in the slide groove 705, and the sliders 704 drive the top fixed abutment plate 703 to slide, so that the rubber pad 702 bonded on the abutment plate 703 contacts the side wall of the water pipe, and the water pipe can be clamped and fixed on the side wall of the water receiving pipe 302; after being fixed, the faucet is turned on to discharge water into the water pipe, and the top of the connecting pipe 305 threadedly connected to the water receiving pipe 302 is engaged with the clamping rod 303. When the water in the water pipe is discharged to the connecting pipe 305, the filter 304 installed on the clamping rod 303 filters the impurities in the water, which is beneficial to prevent the heat dissipation water channel 802 from being blocked, thereby facilitating the improvement of the heat dissipation effect in the motor housing 1;

[0037] The water is connected to the inside of the motor housing 1 through the connecting plate 301, and the water flows from the connecting plate 301 into the motor housing 1. Since a plurality of water channels 802 are arranged in a circular array in the motor housing 1, when one water channel 802 is full, the water can be discharged to another water channel 802 through a drainage groove 803 provided between two adjacent water channels 802, so that the inside of the water channel 802 arranged in an annular shape in the motor housing 1 can be filled with water. The water in the water channel 802 can take away the heat dissipated by the motor housing 1, so as to improve the heat dissipation effect inside the motor; the water that absorbs heat is discharged to the connecting pipe 305 through another connecting plate 301, and then the water in the water channel 802 is discharged through the drainage hose, so as to facilitate the circulation of water inside the motor housing 1, which is beneficial to improving the heat dissipation efficiency inside the motor housing 1.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water-cooling heat dissipation structure for a permanent magnet motor, characterized in that: The motor housing (1) comprises a heat dissipation mechanism (8) provided on the motor housing (1); a fixing mechanism (2) and a mounting mechanism (5) are installed on the motor housing (1); two filtering mechanisms (3) are symmetrically fixed on the motor housing (1); a fixing block (4) is installed on the filtering mechanism (3); a driving mechanism (6) is rotatably mounted on the fixing block (4); and a clamping mechanism (7) is fixed on the driving mechanism (6); The clamping mechanism (7) comprises a slider (704) and a screw rod (706); the fixing block (4) is rotatably connected to the screw rod (706); the screw threads at both ends of the screw rod (706) are in opposite directions; two sliders (704) are threadedly connected to the screw rod (706); a butt plate (703) is fixedly mounted on the slider (704); a rubber pad (702) is bonded to the butt plate (703); and a plug hole (701) and a slide groove (705) are provided on the fixing block (4).

2. A permanent magnet motor water cooling and heat dissipation structure according to claim 1, characterized in that: A sliding block (704) is slidably disposed in the sliding groove (705), and the rubber pad (702) and the abutment plate (703) are arranged in an arc surface structure.

3. A permanent magnet motor water cooling and heat dissipation structure according to claim 1, characterized in that: The driving mechanism (6) comprises a worm (602) and a worm wheel (603); the worm wheel (603) rotates inside the fixed block (4); the worm (602) is meshed with the worm wheel (603); and the rotating block (601) is fixedly connected to the worm (602).

4. A permanent magnet motor water cooling and heat dissipation structure according to claim 3, characterized in that: The worm wheel (603) is fixedly connected to the screw rod (706), and the rotating block (601) and the worm rod (602) are both rotationally connected to the fixed block (4).

5. A permanent magnet motor water cooling and heat dissipation structure according to claim 1, characterized in that: The filtering mechanism (3) comprises a connecting plate (301) and a connecting pipe (305); two connecting plates (301) are symmetrically fixedly mounted on the motor housing (1); a connecting pipe (305) is fixedly mounted on the connecting plate (301); a clamping rod (303) is snap-connected to the connecting pipe (305); a filter screen (304) is fixedly mounted on the clamping rod (303); and a water receiving pipe (302) is threadedly connected to the connecting pipe (305).

6. A permanent magnet motor water cooling and heat dissipation structure according to claim 5, characterized in that: The connecting plate (301) is in communication with the interior of the motor housing (1), and the cross-sectional diameter of the clamping rod (303) is equal to the cross-sectional diameter of the connecting pipe (305).

7. A permanent magnet motor water cooling and heat dissipation structure according to claim 1, characterized in that: The heat dissipation mechanism (8) comprises a motor body (801) and a water channel (802); the motor body (801) is mounted on the motor housing (1); a plurality of water channels (802) are arranged in a circular array on the motor housing (1); and a drainage groove (803) is arranged between two adjacent water channels (802).

8. The water-cooling heat dissipation structure of a permanent magnet motor according to claim 1, characterized in that: The fixing mechanism (2) comprises a connecting block (201) and a machine cover (202); the motor housing (1) is fixedly connected with the machine cover (202), a handle (203) and a base (205); two connecting blocks (201) are fixedly mounted on the machine cover (202); and a lifting ring (204) is fixedly connected to the handle (203).

9. A permanent magnet motor water cooling and heat dissipation structure according to claim 7, characterized in that: The mounting mechanism (5) comprises an insertion rod (501) and a clamping block (502); the insertion rod (501) is fixedly mounted on one end of the motor housing (1) facing away from the machine cover (202); the clamping block (502) is clamped and connected to the insertion rod (501); the clamping block (502) is fixedly connected to a clamping ring (506); a cover plate (503) is fixedly mounted on the clamping ring (506); a positioning rod (505) is rotatably connected to the cover plate (503) and the clamping block (502); an output shaft (504) is rotatably connected to the motor body (801); and the cover plate (503) and the clamping ring (506) are sleeved on the output shaft (504).

10. A permanent magnet motor water cooling and heat dissipation structure according to claim 9, characterized in that: A plurality of the inserting rods (501) and the clamping blocks (502) are arranged in a circular array about the axis of the output shaft (504), and the positioning rod (505) is threadedly connected to the inserting rod (501).

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