Heat dissipation structure of permanent magnet synchronous motor driving device and use method thereof

Abstract

The invention relates to the technical field of heat dissipation structures, and discloses a heat dissipation structure of a permanent magnet synchronous motor driving device, which comprises a cooling water tank, a motor body is fixedly mounted in the cooling water tank, first water pipes are fixedly connected to the two sides of the lower part of the cooling water tank, and a connecting box is fixedly connected to one sides of the two first water pipes; a second water pipe is fixedly connected to the upper portion of the connecting box, and first mounting plates are fixedly connected to the two sides of the upper portion of the connecting box. According to the heat dissipation structure of the permanent magnet synchronous motor driving device, through arrangement of the air cooling water pipes, energy of the motor body is conveniently recycled for air cooling, the working cost of the heat dissipation structure is reduced, through arrangement of the hooks, space adjustment of the air cooling water pipes is facilitated, and the heat dissipation effect is improved. And different air volume requirements and heat dissipation requirements can be met conveniently, impurities in water cooling liquid can be filtered conveniently through the arranged paddle wheel, and normal operation of the system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation structures, and in particular to a heat dissipation structure of a permanent magnet synchronous motor drive device and a use method thereof. Background Art

[0002] Permanent Magnet Synchronous Motor (PMSM) is widely used in industries, automobiles and household appliances due to its high efficiency, high power density and good control performance. However, since the motor generates heat when it is running, if it is not managed effectively, it may cause the motor to overheat, affecting its performance and life.

[0003] Common heat dissipation methods of heat dissipation structures include air cooling, water cooling, oil cooling, etc. Water-cooled heat dissipation structures often use specially driven fans for heat dissipation, which cannot make good use of the kinetic energy of the permanent magnet synchronous motor drive device. The air-cooling water pipes of the existing heat dissipation structure are not convenient to adapt to different air volume requirements and heat dissipation requirements. The water-cooling liquid may carry impurities such as dust and particles during the circulation process. These impurities will cause blockage or wear to the water cooling system, affecting the heat dissipation effect. Therefore, a heat dissipation structure of a permanent magnet synchronous motor drive device and a method for using the same are proposed. Summary of the invention

[0004] The main purpose of the present invention is to provide a heat dissipation structure of a permanent magnet synchronous motor drive device and a method of using the same, which solves the problem that a water-cooled heat dissipation structure often uses a specially driven fan for heat dissipation, cannot make good use of the kinetic energy of the permanent magnet synchronous motor drive device, and the air-cooling water pipes of the existing heat dissipation structure are not convenient for adapting to different air volume requirements and heat dissipation requirements. The water-cooling liquid may carry impurities such as dust and particulate matter during the circulation process, and these impurities may cause blockage or wear to the water cooling system, affecting the heat dissipation effect.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A heat dissipation structure of a permanent magnet synchronous motor drive device comprises a cooling water tank, a motor body is fixedly installed inside the cooling water tank, first water pipes are fixedly connected to both sides of the lower side of the cooling water tank, a connecting box is fixedly connected to one side of the two first water pipes, a second water pipe is fixedly connected to the upper side of the connecting box, first mounting plates are fixedly connected to both sides of the upper side of the connecting box, a mounting box is fixedly connected between the two first mounting plates, a second water pipe is fixedly connected to the lower side of the mounting box, a first water trough is provided at the lower side of the mounting box, and the space of the first water trough is connected to the second water pipe, a second water trough is provided at the upper side of the mounting box, three air-cooling water pipes are fixedly connected to both sides of the inner side of the mounting box at equal distances, the upper ends of the six air-cooling water pipes are connected to the space of the second water trough, and the lower ends of the six air-cooling water pipes are connected to the space of the first water trough.

[0007] Furthermore, a transmission rod is fixedly connected to an output end on one side of the motor body, a limiting groove is provided in the middle of the installation box, and the transmission rod passes through the limiting groove.

[0008] Furthermore, four fan blades are equidistantly fixedly sleeved on the circumferential outer surface of the transmission rod, connecting brackets are fixedly connected on both sides of the cooling water tank, a bellows is fixedly connected between the two connecting brackets, the bellows is movably installed on the outsides of the four fan blades, a first filter plate is fixedly connected to one side of the bellows, the first filter plate is movably sleeved on the outside of the transmission rod, and a second filter plate is fixedly connected to the other side of the bellows, the second filter plate is movably sleeved on the outside of the transmission rod.

[0009] Furthermore, both sides of the installation box are fixedly connected to equipment boxes, the outer side of one of the equipment boxes is fixedly connected to a second mounting plate, the upper side of the second mounting plate is fixedly connected to a control motor, one side output end of the control motor is fixedly connected to a first connecting rod, the first connecting rod is movably sleeved in the two equipment boxes, two first worm gears are equidistantly fixedly sleeved on the circumferential outer surface of the first connecting rod, and the two first worm gears are respectively arranged in the two equipment boxes.

[0010] Furthermore, one side of the two first worm gears is toothed with a first worm wheel, the lower parts of the two first worm wheels are fixedly connected with a second connecting rod, the circumferential outer surfaces of the two second connecting rods are fixedly and movably sleeved with a third mounting plate, and the inner sides of the two third mounting plates are respectively fixedly connected to the inner walls of the two equipment boxes.

[0011] Furthermore, the lower ends of the two second connecting rods are fixedly connected with a second worm, one side of the two second worms is toothed with a second worm wheel, the inner sides of the two second worm wheels are fixedly connected with a screw, the two screws are movably sleeved on two equipment boxes respectively, the outer sides of the two screws are equidistantly threaded with three slides, the inner sides of the six slides are fixedly connected with hooks, and the six hooks are respectively sleeved on the outer sides of six air-cooling water pipes.

[0012] Furthermore, a third water pipe is fixedly connected to the top of the installation box, one end of the third water pipe is fixedly connected to a water pump, the bottom of the water pump is fixedly connected to a cooling water tank, one side of the water pump is fixedly connected to a fourth water pipe, and one side of the fourth water pipe is fixedly connected to a filter bin.

[0013] Furthermore, a filter groove is provided inside the filter bin, and two fixed plates are equidistantly fixedly connected inside the filter bin, a rotating shaft is movably sleeved inside the two fixed plates, a paddle wheel is fixedly sleeved on the circumferential outer surface of the rotating shaft, a scraper is fixedly connected to the outer sides of the two rotating shafts, a fourth filter plate is fixedly connected to both sides of the filter bin, and the two scrapers respectively abut against the two fourth filter plates, and connecting bins are fixedly connected to the outer sides of the two fourth filter plates on both sides of the filter bin, a fifth water pipe is fixedly connected to the lower parts of the two connecting bins, and a cooling water tank is fixedly connected to the lower parts of the two fifth water pipes.

[0014] Furthermore, a control panel is fixedly connected to the outer side of the equipment box, and the control panel is electrically connected to the control motor and the water pump.

[0015] A method for using a heat dissipation structure of a permanent magnet synchronous motor drive device, such as the heat dissipation structure of the permanent magnet synchronous motor drive device described above, has the following specific steps:

[0016] S1. When in use, place the loading bin on a horizontal plane, connect the external power supply through the control panel, and start the motor body;

[0017] S2. When cooling, start the water pump through the control panel, and the water pump generates suction to extract the water-cooling liquid in the cooling water tank for circulating cooling;

[0018] S3. When the motor body is working, the motor body drives the external device by driving the transmission rod. At the same time, the motor body drives the fan blades to rotate through the transmission rod to generate airflow, and the airflow cools the water cooling liquid passing through the air cooling water pipe;

[0019] S4. When the spacing between the air-cooling water pipes needs to be adjusted, the control motor is started through the control panel, thereby driving the hook to adjust the spacing between the air-cooling water pipes.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The air-cooling water pipe provided in the present invention facilitates the recycling of the energy of the motor body for air cooling and reduces the working cost of the heat dissipation structure. When the motor body is in use, the motor body drives the external device by driving the transmission rod. At the same time, the motor body drives the fan blades to rotate through the transmission rod to generate air flow. The air flow cools the water-cooling liquid passing through the air-cooling water pipe, and the air flow takes away the heat of the water-cooling liquid. Through such a configuration, it is convenient to recycle the energy of the motor body for air cooling and reduces the working cost of the heat dissipation structure.

[0022] 2. The hooks provided in the present invention facilitate the adjustment of the spacing of the air-cooling water pipes, and facilitate the adaptation to different air volume requirements and heat dissipation requirements. The control motor is started to drive the screw to move, and the screw in turn drives the slide to move. The slide drives the hook to pull and deform the air-cooling water pipes, so as to adjust the spacing of the deformed air-cooling water pipes. Through such a setting, the spacing of the air-cooling water pipes can be adjusted, and it is convenient to adapt to different air volume requirements and heat dissipation requirements.

[0023] 3. The paddle wheel provided in the present invention facilitates the filtering of impurities in the water-cooling liquid and ensures the normal operation of the system. When the water-cooling liquid enters the filter tank, it is filtered through the fourth filter plate, and then flows back to the cooling water tank through the connecting bin and the fifth water pipe. At the same time, the water-cooling liquid pushes the paddle wheel to move in the filter bin. The paddle wheel can drive the scraper to rotate through the rotating shaft, and the scraper can scrape the surface of the fourth filter plate to prevent the fourth filter plate from being blocked. Through such a setting, it is convenient to filter the impurities in the water-cooling liquid and ensure the normal operation of the system.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure from a first angle of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of a heat dissipation structure of a permanent magnet synchronous motor drive device according to the present invention from a second angle.

[0027] Figure 3 This is a schematic diagram of the overall structure of a heat dissipation structure of a permanent magnet synchronous motor drive device according to the present invention from a third angle.

[0028] Figure 4 It is an enlarged schematic diagram of a partial structure inside a cooling water tank of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0029] Figure 5 It is an enlarged schematic diagram of a partial structure of a fan blade of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0030] Figure 6 It is an enlarged schematic diagram of a partial structure of an equipment box of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0031] Figure 7 It is an enlarged schematic diagram of a partial structure of a first worm of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0032] Figure 8 It is an enlarged schematic diagram of a partial structure inside a hook of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0033] Fig. 9 It is an enlarged schematic diagram of a partial structure of a limiting groove of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0034] Fig.10 This is a partial schematic diagram of a paddle wheel of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0035] Fig.11 It is an enlarged schematic diagram of a partial structure of a filter compartment of a heat dissipation structure of a permanent magnet synchronous motor drive device of the present invention.

[0036] In the figure: 1, cooling water tank; 2, motor body; 3, first water pipe; 4, connection box; 5, connection bracket; 6, bellows; 7, transmission rod; 8, fan blade; 9, first filter plate; 10, second filter plate; 12, second water pipe; 13, installation box; 14, first water tank; 15, second water tank; 16, air cooling water pipe; 17, limit slot; 18, equipment box; 19, control panel; 20, control motor; 21, first connection rod; 22, first worm; 23, first worm wheel; 24, second connecting rod; 25, second worm; 26, second worm wheel; 27, screw; 28, slide; 29, hook; 30, third water pipe; 31, water pump; 32, fourth water pipe; 33, filter chamber; 34, paddle wheel; 35, rotating shaft; 36, fixing plate; 37, scraper; 38, filter tank; 39, fourth filter plate; 40, connecting chamber; 41, fifth water pipe. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-Figure 9As shown, a heat dissipation structure of a permanent magnet synchronous motor drive device includes a cooling water tank 1, a motor body 2 is fixedly installed inside the cooling water tank 1, first water pipes 3 are fixedly connected to both sides of the lower part of the cooling water tank 1, a connecting box 4 is fixedly connected to one side of the two first water pipes 3, a second water pipe 12 is fixedly connected to the upper part of the connecting box 4, first mounting plates are fixedly connected to both sides of the upper part of the connecting box 4, a mounting box 13 is fixedly connected between the two first mounting plates, the lower part of the mounting box 13 is fixedly connected to the second water pipe 12, and a first water tank 14 is provided at the lower part of the inner part of the mounting box 13. The space of the first water tank 14 is connected to the second water pipe 12, a second water tank 15 is provided above the interior of the installation box 13, three air-cooling water pipes 16 are fixedly connected at equal distances on both sides of the interior of the installation box 13, and the upper ends of the six air-cooling water pipes 16 are connected to the space of the second water tank 15, and the lower ends of the six air-cooling water pipes 16 are connected to the space of the first water tank 14. By adopting the above technical solution, the interior of the cooling water tank 1 is hollow and can store water-cooling liquid, and the part of the cooling water tank 1 close to the motor body 2 is made of a material with strong thermal conductivity, which can better absorb the heat generated by the motor body 2;

[0039] The air-cooling water pipe 16 is made of a material with good heat conduction performance and sufficient elasticity, and can return to its original shape after deformation.

[0040] like Figure 1-Figure 8 As shown, a transmission rod 7 is fixedly connected to the output end of one side of the motor body 2, and a limiting groove 17 is opened in the middle of the installation box 13. The transmission rod 7 passes through the limiting groove 17. By adopting the above technical solution, when the transmission rod 7 passes through the limiting groove 17, it will not interfere with the installation box 13.

[0041] like Figure 1-Figure 5 As shown, four fan blades 8 are equidistantly fixedly sleeved on the circumferential outer surface of the transmission rod 7, connecting brackets 5 are fixedly connected on both sides of the cooling water tank 1, a bellows 6 is fixedly connected between the two connecting brackets 5, and the bellows 6 is movably installed on the outer sides of the four fan blades 8. A first filter plate 9 is fixedly connected to one side of the bellows 6, and the first filter plate 9 is movably sleeved on the outer side of the transmission rod 7, and a second filter plate 10 is fixedly connected to the other side of the bellows 6, and the second filter plate 10 is movably sleeved on the outer side of the transmission rod 7. Through such an arrangement, the first filter plate 9 and the second filter plate 10 can filter the air extracted and discharged by the rotation of the fan blades 8 to prevent dirt from adhering to the surface of the fan blades 8.

[0042] like Figure 1-Figure 8As shown, both sides of the installation box 13 are fixedly connected with equipment boxes 18, the outer side of one equipment box 18 is fixedly connected with a second mounting plate, the upper side of the second mounting plate is fixedly connected with a control motor 20, one side output end of the control motor 20 is fixedly connected with a first connecting rod 21, the first connecting rod 21 is movably sleeved in the two equipment boxes 18, two first worm gears 22 are equidistantly fixedly sleeved on the circumferential outer surface of the first connecting rod 21, and the two first worm gears 22 are respectively arranged in the two equipment boxes 18. Through such an arrangement, the equipment box 18 can protect the moving tooth connection of the first worm gear 22 and other gears in the equipment box 18 to prevent external interference.

[0043] like Figure 1-Figure 8 As shown, one side of the two first worm gears 22 is toothed with a first worm wheel 23, and the lower part of the two first worm wheels 23 is fixedly connected with a second connecting rod 24, and the circumferential outer surface of the two second connecting rods 24 is fixedly and movably sleeved with a third mounting plate, and the inner sides of the two third mounting plates are respectively fixedly connected to the inner walls of the two equipment boxes 18. Through such an arrangement, the third mounting plate can limit the second connecting rod 24 without affecting the rotation of the second connecting rod 24, and at the same time limit the outward movement of the second connecting rod 24.

[0044] like Figure 1-Figure 8 As shown, the lower ends of the two second connecting rods 24 are fixedly connected with second worms 25, one side of the two second worms 25 is geared with second worm wheels 26, the inner sides of the two second worm wheels 26 are fixedly connected with screws 27, the two screws 27 are movably sleeved on the two equipment boxes 18, the outer sides of the two screws 27 are equidistantly threaded with three slides 28, the inner sides of the six slides 28 are fixedly connected with hooks 29, and the six hooks 29 are sleeved on the outer sides of the six air-cooling water pipes 16, respectively. By adopting the above technical solution, a limited track is set on the equipment box 18, which can limit the slide 28 to move only along the direction of the screw 27;

[0045] The device box 18 can limit the screw 27, without affecting the rotation of the screw 27 and preventing the screw 27 from detaching;

[0046] The slide 28 is evenly arranged on the screw 27. When the screw 27 rotates to drive the slide 28 to move, the slide 28 can pull the air-cooling water pipe 16 to the same extent through the hook 29;

[0047] If all the air-cooling water pipes 16 are deformed and moved by the same distance, the distance between them will actually change. This is because when the air-cooling water pipes 16 are deformed, their lengths will also change. This situation is explained in detail below:

[0048] Deformation principle

[0049] deformation:

[0050] When the air-cooling water pipe 16 is subjected to an external force such as being pulled by the hook 29, the air-cooling water pipe 16 will be deformed, resulting in a change in its length. The degree of deformation depends on the magnitude of the external force and the elastic properties of the air-cooling water pipe 16 material.

[0051] Spacing changes:

[0052] If all the air-cooling water pipes 16 are deformed to the same extent, the distance between them will change with the deformation of the air-cooling water pipes 16 .

[0053] The principle of spacing change:

[0054] Assume that in the initial state, the length of all the air-cooling water pipes 16 is L and the spacing is D. When all the air-cooling water pipes 16 are deformed and moved by the same distance ΔL, the length of the air-cooling water pipe 16 becomes L+ΔL. At this time, if all the air-cooling water pipes 16 are uniformly deformed and maintain the same degree of deformation, then the spacing D' between them will no longer be the original D, but will change.

[0055] Calculate the spacing change:

[0056] In order to calculate the spacing D' after the spacing change, we need to consider the length change of the air cooling water pipe 16 after deformation and the number of air cooling water pipes 16. It is assumed here that all air cooling water pipes 16 have the same degree of deformation and the length of all air cooling water pipes 16 after deformation is L+ΔL.

[0057] Assuming that there are n air-cooling water pipes 16 arranged side by side in total, and the length change of each air-cooling water pipe 16 is the same, then the total length change is n×ΔL.

[0058] The initial total length is: n×L

[0059] The total length after deformation is: n×(L+ΔL)

[0060] Assuming that the distances between the air-cooling water pipes 16 before and after deformation are D and D' respectively, then:

[0061] The total spacing before deformation is: (n-1)×D

[0062] The total spacing after deformation is: (n-1)×D'

[0063] Since the total length of the air-cooling water pipe 16 does not change after deformation, we have:

[0064] n×(L+ΔL)=n×L+(n-1)×D'

[0065] We know that the total length before deformation is:

[0066] n×L+(n-1)×D

[0067] Therefore, the total length after deformation is equal to the total length before deformation plus the length change caused by deformation, that is:

[0068] n×(L+ΔL)=n×L+(n-1)×D+n×ΔL

[0069] From this we can solve the distance D' after deformation:

[0070] (n-1)×D'=(n-1)×D+n×ΔL

[0071] It can be seen that even if all the air-cooling water pipes 16 are deformed by the same distance ΔL, the spacing D′ between them will also change, depending on the deformation amount ΔL and the number n of the air-cooling water pipes 16 .

[0072] in conclusion:

[0073] When all the air-cooling water pipes 16 are deformed and moved the same distance, the spacing between them will actually change unless all the air-cooling water pipes 16 are completely restored to their original state;

[0074] When a stronger air cooling effect is needed, the distance between the air cooling water pipes 16 can be increased to increase the air circulation; when the space is limited or the air volume is small, the distance between the air cooling water pipes 16 can be reduced.

[0075] like Figure 1-Figure 3 As shown, a third water pipe 30 is fixedly connected to the top of the installation box 13, one end of the third water pipe 30 is fixedly connected to a water pump 31, the bottom of the water pump 31 is fixedly connected to the cooling water tank 1, one side of the water pump 31 is fixedly connected to a fourth water pipe 32, and one side of the fourth water pipe 32 is fixedly connected to a filter tank 33. Through such an arrangement, the water pump 31 can draw cooling liquid from the third water pipe 30 and discharge the cooling liquid from the fourth water pipe 32.

[0076] like Figure 1-Figure 3 , Figure 10-11 As shown, a filter groove 38 is opened inside the filter bin 33, and two fixed plates 36 are fixedly connected to the inside of the filter bin 33 at equal intervals. A rotating shaft 35 is movably sleeved in the two fixed plates 36, and a paddle wheel 34 is fixedly sleeved on the circumferential outer surface of the rotating shaft 35. Scrapers 37 are fixedly connected to the outsides of the two rotating shafts 35. Fourth filter plates 39 are fixedly connected on both sides of the filter bin 33, and the two scrapers 37 abut against the two fourth filter plates 39 respectively. Connecting bins 40 are fixedly connected on both sides of the filter bin 33 on the outsides of the two fourth filter plates 39, and fifth water pipes 41 are fixedly connected below the two connecting bins 40. The cooling water tank 1 is fixedly connected below the two fifth water pipes 41. Through such an arrangement, a guide nozzle is installed in the filter bin 33 to ensure that the water flow is concentrated and impacts the paddle wheel 34 at the correct angle.

[0077] like Figure 1-Figure 3 , Figure 10-11 As shown, a control panel 19 is fixedly connected to the outside of an equipment box 18 , and the control panel 19 is electrically connected to the control motor 20 and the water pump 31 . Through such a setting, the control panel 19 can control the control motor 20 and the water pump 31 .

[0078] It should be noted that when in use, the cooling water tank 1 is installed on a horizontal plane and connected to an external power supply through the control panel 19. When the motor body 2 generates heat during use, the heat is absorbed and carried away by the cooling liquid in the cooling water tank 1 through the cooling water tank 1.

[0079] The water pump 31 is started by the control panel 19, and the water pump 31 generates suction to extract the water-cooling liquid in the cooling water tank 1. The water-cooling liquid passes through the first water pipe 3, the connecting box 4, the second water pipe 12, and the first water tank 14 into the air-cooling water pipe 16. At this time, the motor body 2 drives the external device by driving the transmission rod 7. At the same time, the motor body 2 drives the fan blades 8 to rotate through the transmission rod 7 to generate airflow. The airflow cools the water-cooling liquid passing through the air-cooling water pipe 16, and the airflow takes away the heat of the water-cooling liquid. The water-cooling liquid then passes through the second water tank 15 and the first water tank 14. The third water pipe 30 enters the water pump 31, and then the water pump 31 discharges the water-cooling liquid through the fourth water pipe 32 and enters the filter chamber 33. When the water-cooling liquid enters the filter tank 38, the water-cooling liquid is filtered by the fourth filter plate 39, and then the water-cooling liquid flows back to the cooling water tank 1 through the connecting chamber 40 and the fifth water pipe 41. At the same time, the water-cooling liquid in the filter chamber 33 drives the paddle wheel 34 to move. The paddle wheel 34 can drive the scraper 37 to rotate through the rotating shaft 35. The scraper 37 can scrape the surface of the fourth filter plate 39 to prevent the fourth filter plate 39 from being blocked.

[0080] When the air volume changes, the control motor 20 is started through the control panel 19, and the control motor 20 drives the second worm 25 to rotate through the first connecting rod 21, the first worm 22, the first worm wheel 23, and the second connecting rod 24. The second worm 25 then drives the screw 27 to move, and the screw 27 then drives the slide 28 to move. The slide 28 drives the hook 29 to pull and deform the air-cooling water pipe 16. The spacing of the air-cooling water pipes 16 after deformation is adjusted to meet the usage requirements in different situations.

[0081] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat dissipation structure of a permanent magnet synchronous motor drive device, comprising a cooling water tank (1), characterized in that: The cooling water tank (1) has a motor body (2) fixedly installed inside it, first water pipes (3) are fixedly connected to both sides of the lower part of the cooling water tank (1), a connection box (4) is fixedly connected to one side of the two first water pipes (3), a second water pipe (12) is fixedly connected to the upper part of the connection box (4), first mounting plates are fixedly connected to both sides of the upper part of the connection box (4), a mounting box (13) is fixedly connected to the middle of the two first mounting plates, and the lower part of the mounting box (13) is fixedly connected to the second water pipe (12). 2), a first water tank (14) is provided at the lower part of the interior of the installation box (13), and the space of the first water tank (14) is connected to the second water pipe (12), a second water tank (15) is provided at the upper part of the interior of the installation box (13), three air-cooling water pipes (16) are fixedly connected at equal distances on both sides of the interior of the installation box (13), and the upper ends of the six air-cooling water pipes (16) are connected to the space of the second water tank (15), and the lower ends of the six air-cooling water pipes (16) are connected to the space of the first water tank (14).

2. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 1, characterized in that: A transmission rod (7) is fixedly connected to one output end of the motor body (2); a limiting groove (17) is provided in the middle of the installation box (13); and the transmission rod (7) passes through the limiting groove (17).

3. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 2, characterized in that: Four fan blades (8) are fixedly sleeved at equal intervals on the circumferential outer surface of the transmission rod (7); connecting brackets (5) are fixedly connected to both sides of the cooling water tank (1); a bellows (6) is fixedly connected between the two connecting brackets (5); the bellows (6) is movably mounted on the outer sides of the four fan blades (8); a first filter plate (9) is fixedly connected to one side of the bellows (6); the first filter plate (9) is movably sleeved on the outer side of the transmission rod (7); a second filter plate (10) is fixedly connected to the other side of the bellows (6); the second filter plate (10) is movably sleeved on the outer side of the transmission rod (7).

4. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 3, characterized in that: Both sides of the installation box (13) are fixedly connected to equipment boxes (18), the outer side of one of the equipment boxes (18) is fixedly connected to a second installation plate, the upper side of the second installation plate is fixedly connected to a control motor (20), one side output end of the control motor (20) is fixedly connected to a first connecting rod (21), the first connecting rod (21) is movably sleeved in the two equipment boxes (18), two first worm gears (22) are equidistantly fixedly sleeved on the circumferential outer surface of the first connecting rod (21), and the two first worm gears (22) are respectively arranged in the two equipment boxes (18).

5. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 4, characterized in that: One side of the two first worm gears (22) is toothed with a first worm wheel (23), the lower part of the two first worm wheels (23) is fixedly connected with a second connecting rod (24), the circumferential outer surface of the two second connecting rods (24) is fixedly and movably sleeved with a third mounting plate, and the inner sides of the two third mounting plates are respectively fixedly connected to the inner walls of the two equipment boxes (18).

6. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 5, characterized in that: The lower ends of the two second connecting rods (24) are fixedly connected to the second worm (25), one side of the two second worm (25) is gear-connected to the second worm wheel (26), the inner sides of the two second worm wheels (26) are fixedly connected to the screw (27), the two screws (27) are movably sleeved on the two equipment boxes (18), the outer sides of the two screws (27) are equidistantly threadedly connected to three slides (28), the inner sides of the six slides (28) are fixedly connected to the hooks (29), and the six hooks (29) are respectively sleeved on the outer sides of the six air-cooling water pipes (16).

7. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 6, characterized in that: A third water pipe (30) is fixedly connected to the top of the installation box (13), one end of the third water pipe (30) is fixedly connected to a water pump (31), the bottom of the water pump (31) is fixedly connected to a cooling water tank (1), one side of the water pump (31) is fixedly connected to a fourth water pipe (32), and one side of the fourth water pipe (32) is fixedly connected to a filter bin (33).

8. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 7, characterized in that: A filter tank (38) is provided inside the filter bin (33). Two fixed plates (36) are fixedly connected to the inside of the filter bin (33) at equal intervals. A rotating shaft (35) is movably sleeved inside the two fixed plates (36). A paddle wheel (34) is fixedly sleeved on the circumferential outer surface of the rotating shaft (35). Scrapers (37) are fixedly connected to the outer sides of the two rotating shafts (35). Fourth filter plates (39) are fixedly connected to both sides of the filter bin (33). The two scrapers (37) respectively abut against the two fourth filter plates (39). Connecting bins (40) are fixedly connected to the outer sides of the two fourth filter plates (39) on both sides of the filter bin (33). Fifth water pipes (41) are fixedly connected to the lower sides of the two connecting bins (40). A cooling water tank (1) is fixedly connected to the lower sides of the two fifth water pipes (41).

9. The heat dissipation structure of a permanent magnet synchronous motor drive device according to claim 8, characterized in that: A control panel (19) is fixedly connected to the outside of the equipment box (18), and the control panel (19) is electrically connected to the control motor (20) and the water pump (31).

10. A method for using a heat dissipation structure of a permanent magnet synchronous motor drive device, characterized in that: The heat dissipation structure of a permanent magnet synchronous motor drive device as claimed in any one of claims 1 to 9 is used, and the specific use steps are as follows: S1. When in use, place the loading bin (1) on a horizontal plane, connect an external power source through the control panel (43), and start the motor body (2); S2, when heat is dissipated, the water pump (31) is started through the control panel (19), and the water pump (31) generates suction to extract the water-cooling liquid in the cooling water tank (1) for circulating cooling; S3. When the motor body (2) is working, the motor body (2) drives the external device by driving the transmission rod (7), and at the same time, the motor body (2) drives the fan blades (8) to rotate through the transmission rod (7) to generate airflow, and the airflow cools the water-cooling liquid passing through the air-cooling water pipe (16); S4. When the spacing between the air-cooling water pipes (16) needs to be adjusted, the control motor (20) is started through the control panel (19), thereby driving the hook (29) to adjust the spacing between the air-cooling water pipes (16).

Images