CN117294079A - Permanent magnet synchronous motor driving device - Google Patents
Permanent magnet synchronous motor driving device Download PDFInfo
- Publication number
- CN117294079A CN117294079A CN202311341025.3A CN202311341025A CN117294079A CN 117294079 A CN117294079 A CN 117294079A CN 202311341025 A CN202311341025 A CN 202311341025A CN 117294079 A CN117294079 A CN 117294079A
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- Prior art keywords
- permanent magnet
- synchronous motor
- magnet synchronous
- pipe
- air bag
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000005086 pumping Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a permanent magnet synchronous motor driving device, which comprises a permanent magnet synchronous motor main body and a driving shaft arranged at one end of the permanent magnet synchronous motor main body, wherein a water tank is arranged at the bottom of the permanent magnet synchronous motor main body; the circular shell is sleeved on the outer side of the permanent magnet synchronous motor main body and is arranged on the water tank; and the first air bag is arranged on the inner side of the circular shell. The invention pumps water in the water tank into the square tank body b through the water inlet pipe a, the strip-shaped air bag, the communicating pipe a and the connecting pipe a, and discharges the water into the water tank through the connecting pipe b, the communicating pipe b, the strip-shaped air bag and the water discharge pipe b; the heat on the permanent magnet synchronous motor main body is taken away by the circulating water flow, and meanwhile, the first air bag is expanded to press the strip-shaped air bag on the outer surface wall of the permanent magnet synchronous motor main body, so that the strip-shaped air bag is large in size and covers most of the outer surface wall of the permanent magnet synchronous motor main body, and the cooling effect is enhanced.
Description
Technical Field
The invention relates to the technical field of motor driving devices, in particular to a permanent magnet synchronous motor driving device.
Background
The permanent magnet synchronous motor uses permanent magnets to provide excitation, so that the motor structure is simpler, the processing and assembly cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, the running reliability of the motor is improved, excitation current is not needed, excitation loss is avoided, the efficiency and the power density of the motor are improved, and the permanent magnet synchronous motor is composed of a stator, a rotor, an end cover and other parts.
Chinese patent application No. 2022112556766 discloses a permanent magnet synchronous motor drive arrangement, including permanent magnet synchronous motor main part, drive main shaft, tail-end machine lid, motor fan and pumping pressure drop mechanism, the drive main shaft is installed to the left end of permanent magnet synchronous motor main part, the tail-end machine lid is installed to the right-hand member of permanent magnet synchronous motor main part, the internally mounted of tail-end machine lid has motor fan, motor fan rotates with the drive main shaft to be connected, motor fan's center pin and pumping pressure drop mechanism swing joint, pumping pressure drop mechanism is including connecting the pendulum rod, and the device can conveniently utilize motor fan's rotation power, drives cooling water in the water storage tank, and continuous flow is through permanent magnet synchronous motor main part surface.
In the technical scheme, cooling water in the water storage tank is pumped into the heat absorption plate through the water absorption pipe, when the first piston rod is in a reset state, the cooling water in the heat absorption plate is returned to the water storage tank again to exchange heat to realize cooling, however, the two groups of heat absorption plates arranged on the permanent magnet synchronous motor driving device are smaller in size, so that the contact area of the heat absorption plates and the permanent magnet synchronous motor is smaller, and the cooling effect on the permanent magnet synchronous motor is not ideal.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and providing a permanent magnet synchronous motor driving device, wherein water in a water tank is pumped into a square tank body b through a water inlet pipe a, a strip-shaped air bag, a communicating pipe a and a connecting pipe a, and is discharged into the water tank through the connecting pipe b, the communicating pipe b, the strip-shaped air bag and a water discharge pipe b; the heat on the permanent magnet synchronous motor main body is taken away by the circulating water flow, and meanwhile, the first air bag is expanded to press the strip-shaped air bag on the outer surface wall of the permanent magnet synchronous motor main body, so that the strip-shaped air bag is large in size and covers most of the outer surface wall of the permanent magnet synchronous motor main body, and the cooling effect is enhanced.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the permanent magnet synchronous motor driving device comprises a permanent magnet synchronous motor main body and a driving shaft arranged at one end of the permanent magnet synchronous motor main body, and a water tank arranged at the bottom of the permanent magnet synchronous motor main body; the circular shell is sleeved on the outer side of the permanent magnet synchronous motor main body and is arranged on the water tank; a first air bag mounted inside the circular shell; the strip-shaped air bags are arranged on the outer side of the permanent magnet synchronous motor main body; the air charging unit charges air into the first air bag and drives the strip-shaped air bag to be completely attached to the outer side of the permanent magnet synchronous motor main body; and the circulating water pumping unit is used for circularly filling water into the strip-shaped air bags so as to cool the permanent magnet synchronous motor main body.
Further, the air charging unit includes: the gear a is arranged at the output end of the permanent magnet synchronous motor main body; the connecting frame is arranged on the round shell; the central shaft is arranged on the connecting frame; a gear b mounted on the central shaft, the gear a being engaged with the gear b; a square tank a mounted on the circular shell; the piston a is arranged in the square tank body a in a sliding manner; a moving rod a mounted on the piston a; and the transmission assembly a drives the motion rod a to move through the transmission assembly a in a rotating way.
Further, the transmission assembly a includes: the mounting rack a is mounted on the square tank body a; the rotary rod a is rotatably arranged on the mounting frame a; the rotating sleeve a is arranged on the rotating rod a, and an inclined ring groove a is formed in the rotating sleeve a; a sliding rod a, wherein the sliding rod a is arranged on the moving rod a, and the sliding rod a slides in the inclined ring groove a; and the central shaft is in transmission connection with the rotating rod a through the belt a.
Further, the circulating pumping unit includes: the water inlet pipes a are communicated with the water tank, and the water inlet pipes a are communicated with the bottoms of the strip-shaped air bags on one side of the water inlet pipes a; a communicating tube a mounted above one of the strip-shaped air bags; a communicating tube b mounted above the strip-shaped air bag on the other side; the drain pipe b is arranged at the bottom of the strip-shaped air bag at the other side; and the circulating water pumping assembly is arranged above the circular shell.
Further, the circulating water pumping assembly includes: the square tank body b is arranged on the communicating pipe a and the communicating pipe b; the piston b is arranged in the square tank body b in a sliding manner; a moving rod b mounted on the piston b; the mounting frame b is mounted on the square tank body b; the rotary rod b is rotatably arranged on the mounting frame b; the rotating sleeve b is arranged on the rotating rod b, and an inclined ring groove b is formed in the rotating sleeve b; a sliding rod b mounted on the moving rod b, the sliding rod b sliding in the inclined ring groove b; and the central shaft is in transmission connection with the rotating rod b through the belt b.
Furthermore, the communicating pipe a is communicated with the square tank b through a connecting pipe a, the communicating pipe b is communicated with the square tank b through a connecting pipe b, and a one-way valve a is arranged in the connecting pipe a and the connecting pipe b.
Further, the inflation unit further includes: the connecting pipe c is arranged on the square tank body a; the circular plate a is arranged on the connecting pipe c, a vent hole a is formed in the circular plate a, and the vent hole a is communicated with the connecting pipe c; the fixing frame is arranged on the square tank a; the circular plate b is arranged on the fixing frame, and the circular plate b is provided with a vent hole b and a vent hole c; the rotary sleeve is rotationally arranged between the circular plate a and the circular plate b; a vent pipe b, wherein the vent pipe b is arranged between the first air bag and the vent hole b; and the breather pipe c is arranged between the water tank and the breather hole c.
Further, a central hole, an air vent groove and an air exhaust groove are formed in the rotary sleeve, and the central hole is communicated with the air vent hole a; the vent groove communicates with the vent hole b or the vent hole c.
Further, a buffer groove is formed in the rotary sleeve, an elastic connecting piece is arranged in the buffer groove, two groups of positioning holes are formed in the circular plate b, and positioning balls inserted into the positioning holes are arranged at the free ends of the elastic connecting pieces.
Furthermore, the water tank is internally provided with an inclined plate and a plurality of groups of air ejector pipes, the air ejector pipes are communicated with the ventilation pipe c, a plurality of groups of air ejector pipes correspond to the bottom position of the inclined plate, and water discharged by the drain pipe b flows on the inclined plate.
The invention has the beneficial effects that:
(1) The water flow in the water tank is pumped into the square tank b through the water inlet pipe a, the strip-shaped air bag, the communicating pipe a and the connecting pipe a, and the water flow in the square tank b is discharged into the water tank through the connecting pipe b, the communicating pipe b, the strip-shaped air bag and the water discharge pipe b; the heat on the permanent magnet synchronous motor main body is taken away by the circulating water flow, and meanwhile, the first air bag is expanded to press the strip-shaped air bag on the outer surface wall of the permanent magnet synchronous motor main body, so that the strip-shaped air bag is large in size and covers most of the outer surface wall of the permanent magnet synchronous motor main body, and the cooling effect is enhanced.
(2) According to the permanent magnet synchronous motor, the rotating rod a is driven to rotate through the belt a, the rotating sleeve a is driven to rotate, the sliding rod a slides in the inclined ring groove a, the piston a is driven to reciprocate in the square tank a through the moving rod a, so that gas in the square tank a is pressed into the first air bag, the first air bag is inflated, the strip-shaped air bag is extruded, and the strip-shaped air bag is tightly pressed on the outer surface wall of the permanent magnet synchronous motor body.
(3) In the invention, as the outer surface wall of the permanent magnet synchronous motor main body is in the concave-convex shape, the first air bag is expanded to tightly press the strip-shaped air bag into the concave-convex shape outer surface wall of the permanent magnet synchronous motor main body, and the cooling effect is enhanced when water flows circularly.
(4) The air in the square tank a enters the first air bag through the empty groove, the vent hole a, the central hole, the vent groove, the vent hole b and the vent pipe b, and after the first air bag is full, the rotary sleeve is rotated to drive the positioning ball to be inserted into the other group of positioning holes, and the vent groove is communicated with the vent hole c; air in the square tank body a is sprayed out through the air vent pipe c and the air jet pipe; the water discharged by the drain pipe b is horizontally scattered on the inclined plate, the air ejector pipe ejects air flow to water flow on the inclined plate, then the water flow is cooled, and the cooled water flows back to the bottom of the water tank.
Drawings
FIG. 1 is a schematic view of a first overall structure of the present invention;
FIG. 2 is a schematic diagram of a second overall structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the aeration unit and the circulating pumping unit of the present invention;
FIG. 4 is a schematic diagram of the circulation pumping unit of the present invention;
FIG. 5 is a schematic view of the structure of the inflatable unit of the present invention;
FIG. 6 is a schematic cross-sectional view of a square tank a of the present invention;
FIG. 7 is a schematic cross-sectional view of a square tank b of the present invention;
FIG. 8 is a schematic diagram of the main structure of the bar-shaped air bag and the permanent magnet synchronous motor of the invention;
FIG. 9 is an enlarged schematic view of the invention at A in FIG. 2;
FIG. 10 is a first cross-sectional view of the connecting tube c, circular plate a and circular plate b of the present invention;
FIG. 11 is a second cross-sectional view of the connecting tube c, circular plate a and circular plate b of the present invention;
FIG. 12 is a schematic view of the swash plate and gas lance structure of the present invention;
fig. 13 is a schematic view of the structure of the rotary sleeve of the present invention.
Reference numerals
10. A permanent magnet synchronous motor main body; 11. a drive shaft; 12. a water tank; 121. a sloping plate; 122. a gas lance; 13. a circular shell; 14. a first air bag; 15. a strip-shaped air bag; 2. an inflation unit; 21. a gear a; 22. a connecting frame; 23. a central shaft; 24. a gear b; 25. a square tank a; 250. a one-way valve b; 251. a connecting pipe c; 2511. a hollow groove; 252. a circular plate a; 2521. a vent hole a; 253. a fixing frame; 254. a circular plate b; 2541. a vent b; 2542. a vent hole c; 2543. positioning holes; 255. a rotating sleeve; 2551. a central bore; 2552. a vent groove; 2553. an exhaust groove; 2554. a buffer tank; 2555. an elastic connection member; 2556. a positioning ball; 256. a vent pipe b; 257. a vent pipe c; 26. a piston a; 27. a motion bar a; 28. a transmission assembly a; 281. a mounting frame a; 282. a rotating rod a; 283. rotating the sleeve a; 2831. a bevel ring groove a; 284. a sliding rod a; 285. a belt a; 3. a circulating water pumping unit; 31. a water inlet pipe a; 310. a hose; 33. a communicating pipe a; 35. a communicating tube b; 36. a drain pipe b; 37. a circulating water pumping assembly; 371. a square tank b; 372. a piston b; 373. a motion bar b; 374. a mounting frame b; 375. a rotating rod b; 376. rotating the sleeve b; 3761. an inclined ring groove b; 377. a sliding rod b; 3711. a connecting pipe a; 3712. a connecting pipe b; 3713. a one-way valve a; 378. and a belt b.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1 to 12, the present embodiment provides a permanent magnet synchronous motor driving device, which includes a permanent magnet synchronous motor main body 10 and a driving shaft 11 installed at one end of the permanent magnet synchronous motor main body 10, a water tank 12, wherein the water tank 12 is installed at the bottom of the permanent magnet synchronous motor main body 10; the circular shell 13 is sleeved outside the permanent magnet synchronous motor main body 10, and the circular shell 13 is arranged on the water tank 12; a first air bag 14, the first air bag 14 being mounted inside the circular housing 13; the strip-shaped air bags 15, a plurality of groups of strip-shaped air bags 15 are arranged on the outer side of the permanent magnet synchronous motor main body 10; the inflation unit 2 inflates the first air bag 14 to drive the strip-shaped air bag 15 to be completely attached to the outer side of the permanent magnet synchronous motor body 10; and the circulating water pumping unit 3 is used for circulating water into the strip-shaped air bags 15 and then cooling the permanent magnet synchronous motor main body 10.
Preferably, as shown in fig. 1 and 2, the inflator unit 2 includes: the gear a21, the gear a21 is installed at the output end of the permanent magnet synchronous motor main body 10; a connection frame 22, the connection frame 22 being mounted on the circular housing 13; a center shaft 23, the center shaft 23 being mounted on the connection frame 22; gear b24, gear b24 is installed on central shaft 23, gear a21 meshes with gear b 24; a square tank a25, wherein the square tank a25 is arranged on the round shell 13; the piston a26, the piston a26 is slidably arranged in the square tank a 25; a moving rod a27, the moving rod a27 being mounted on the piston a 26; the transmission assembly a28, the central shaft 23 rotates to drive the motion rod a27 to move through the transmission assembly a 28.
Further, as shown in fig. 3 to 5, the transmission assembly a28 includes: the mounting frame a281, the mounting frame a281 is mounted on the square tank body a 25; a rotating rod a282, wherein the rotating rod a282 is rotatably arranged on the mounting frame a 281; a rotating sleeve a283, wherein the rotating sleeve a283 is arranged on the rotating rod a282, and an inclined ring groove a2831 is formed in the rotating sleeve a 283; a sliding rod a284, the sliding rod a284 is arranged on the moving rod a27, and the sliding rod a284 slides in the inclined ring groove a2831; the central shaft 23 and the rotating rod a282 are in transmission connection through the belt a 285.
In this embodiment, the driving shaft 11 is driven by the permanent magnet synchronous motor main body 10 to rotate, the gear a21 is driven to rotate, the gear a21 is meshed with the gear b24, the central shaft 23 is driven to rotate, the rotating rod a282 is driven by the belt a285 to rotate, the rotating sleeve a283 is driven to rotate, the sliding rod a284 slides in the inclined annular groove a2831, the piston a26 is driven by the moving rod a27 to reciprocate in the square tank a25, the gas in the square tank a25 is further pressed into the first air bag 14, the first air bag 14 is inflated, and the first air bag 14 is inflated to squeeze the strip-shaped air bag 15, so that the strip-shaped air bag is tightly pressed against the outer surface wall of the permanent magnet synchronous motor main body 10;
preferably, as shown in fig. 1 to 8, the circulation pumping unit 3 includes: a water inlet pipe a31, a plurality of groups of water inlet pipes a31 are communicated with the water tank 12, and the water inlet pipe a31 is communicated with the bottom of the strip-shaped air bag 15 at one side; a communicating tube a33, the communicating tube a33 being installed above one of the side strip airbags 15; a communicating tube b35, the communicating tube b35 being installed above the other side bar-shaped air bag 15; the drain pipe b36, the drain pipe b36 is installed at the bottom of the strip-shaped air bag 15 at the other side; and the circulating water pumping assembly 37, wherein the circulating water pumping assembly 37 is arranged above the circular shell 13.
Further, as shown in fig. 3 to 12, the circulation pumping assembly 37 includes: square tank b371, square tank b371 is mounted on communicating tube a33 and communicating tube b 35; the piston b372, the piston b372 slides and locates in square tank b 371; a moving rod b373, the moving rod b373 being mounted on the piston b 372; the mounting frame b374, the mounting frame b374 is mounted on the square tank b 371; a rotating rod b375, the rotating rod b375 is rotatably arranged on the mounting frame b 374; a rotating sleeve b376, wherein the rotating sleeve b376 is arranged on the rotating rod b375, and an inclined ring groove b3761 is formed in the rotating sleeve b 376; a sliding rod b377, the sliding rod b377 is installed on the moving rod b373, the sliding rod b377 slides in the inclined ring groove b3761; the central shaft 23 and the rotating rod b375 are in transmission connection through the belt b 378.
In this embodiment, the permanent magnet synchronous motor body 10 drives the driving shaft 11 to rotate to drive the gear a21 to rotate, the gear a21 is meshed with the gear b24 to drive the central shaft 23 to rotate, the belt b378 drives the rotating rod b375 to rotate to drive the rotating sleeve b376 to rotate, the sliding rod b377 slides in the inclined ring groove b3761, and the moving rod b373 drives the piston b372 to reciprocate in the square tank b 371;
in the water pumping process, water flow in the water tank 12 is pumped into the square tank b371 through the water inlet pipe a31, the strip-shaped air bag 15, the communicating pipe a33 and the connecting pipe a3711, and in the water draining process, the water flow in the square tank b371 is discharged into the water tank 12 through the connecting pipe b3712, the communicating pipe b35, the strip-shaped air bag 15 and the water draining pipe b 36;
the circulating water flow takes away the heat on the permanent magnet synchronous motor main body 10, and meanwhile, the first air bag 14 is inflated to press the strip-shaped air bag 15 on the outer surface wall of the permanent magnet synchronous motor main body 10, so that the strip-shaped air bag 15 covers most of the outer surface wall of the permanent magnet synchronous motor main body 10 in a larger size, and the cooling effect is enhanced;
it should be noted that: because the outer surface wall of the permanent magnet synchronous motor main body 10 is in a concave-convex shape, the first air bag 14 is inflated to tightly press the strip-shaped air bag 15 in the concave-convex shape outer surface wall of the permanent magnet synchronous motor main body 10, and the cooling effect is enhanced when water flows circularly.
Example two
As shown in fig. 8 to 11, wherein the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the differences from the first embodiment will be described below for the sake of brevity. The second embodiment is different from the first embodiment in that:
further, as shown in fig. 8 to 11, the inflator unit 2 further includes: a connection pipe c251, the connection pipe c251 being mounted on the square tank a 25; a circular plate a252, wherein the circular plate a252 is arranged on the connecting pipe c251, the circular plate a252 is provided with a vent hole a2521, and the vent hole a2521 is communicated with the connecting pipe c 251; the fixing frame 253, the fixing frame 253 is arranged on the square tank body a 25; a circular plate b254, the circular plate b254 is installed on the fixing frame 253, and the circular plate b254 is provided with a vent hole b2541 and a vent hole c2542; a rotating sleeve 255, the rotating sleeve 255 being rotatably provided between the circular plate a252 and the circular plate b 254; a vent tube b256, the vent tube b256 being provided between the first airbag 14 and the vent hole b 2541; vent pipe c257, vent pipe c257 is provided between tank 12 and vent hole c2542, and hollow 2511 is provided in connection pipe c 251.
Further, as shown in fig. 8 to 11, a central hole 2551, a vent groove 2552 and a vent groove 2553 are formed in the rotary sleeve 255, and the central hole 2551 is communicated with the vent hole a 2521; the exhaust groove 2553 is communicated with the vent hole b2541 or the vent hole c2542, a buffer groove 2554 is formed in the rotary sleeve 255, an elastic connecting piece 2555 is arranged in the buffer groove 2554, two groups of positioning holes 2543 are formed in the circular plate b254, and a positioning ball 2556 inserted into the positioning holes 2543 is arranged at the free end of the elastic connecting piece 2555.
Further, as shown in fig. 6 and 7, the communicating pipe a33 is communicated with the square tank b371 through a connecting pipe a3711, the communicating pipe b35 is communicated with the square tank b371 through a connecting pipe b3712, and a check valve a3713 is arranged in the connecting pipe a3711 and the connecting pipe b 3712; a one-way valve b250 is arranged in the square tank body a25 and the connecting pipe c 251;
as shown in fig. 10, the water tank 12 is internally provided with an inclined plate 121 and a plurality of groups of air ejector pipes 122, the air ejector pipes 122 are communicated with a vent pipe c257, the groups of air ejector pipes 122 correspond to the bottom position of the inclined plate 121, water discharged by a drain pipe b36 is arranged on the inclined plate 121, and a water inlet pipe a31 is communicated with the bottom of the water tank 12 through a hose 310;
in this embodiment, in the initial state, as shown in fig. 10, the positioning balls 2556 are inserted into one of the positioning holes 2543 to limit the rotation of the rotating sleeve 255;
the air in the square tank body a25 enters the first air bag 14 through the empty slot 2511, the vent hole a2521, the central hole 2551, the vent slot 2552, the vent slot 2553, the vent hole b2541 and the vent pipe b256, after the first air bag 14 is full, the rotating sleeve 255 is rotated (180 degrees) manually, so as to drive the positioning ball 2556 to be inserted into the other group of positioning holes 2543, and at the moment, the vent slot 2553 is communicated with the vent hole c2542;
air in the square tank a25 is sprayed out through the air spraying pipe 122 by the air pipe c 257; the water discharged from the drain pipe b36 is horizontally spread on the inclined plate 121, and the air jet pipe 122 jets the air flow to the water flow on the inclined plate 121, thereby cooling the water flow, and the cooled water flows back to the bottom of the water tank 12.
Working procedure
Step one, an inflation procedure: the driving shaft 11 is driven to rotate by the permanent magnet synchronous motor main body 10 to drive the gear a21 to rotate, the central shaft 23 is driven to rotate by the meshing of the gear a21 and the gear b24, the rotating rod a282 is driven to rotate by the belt a285 to drive the rotating sleeve a283 to rotate, the sliding rod a284 slides in the inclined annular groove a2831, the piston a26 is driven to reciprocate in the square tank a25 by the moving rod a27, the gas in the square tank a25 is pressed into the first gas bag 14, the gas is inflated into the first gas bag 14, and the first gas bag 14 is inflated to squeeze the strip-shaped gas bag 15, so that the strip-shaped gas bag is tightly adhered to the outer surface wall of the permanent magnet synchronous motor main body 10;
step two, a cooling procedure: the driving shaft 11 is driven to rotate by the permanent magnet synchronous motor main body 10 to drive the gear a21 to rotate, the central shaft 23 is driven to rotate by the meshing of the gear a21 and the gear b24, the rotating rod b375 is driven to rotate by the belt b378 to drive the rotating sleeve b376 to rotate, the sliding rod b377 slides in the inclined ring groove b3761, and the piston b372 is driven to reciprocate in the square tank b371 by the moving rod b 373;
in the water pumping process, water flow in the water tank 12 is pumped into the square tank b371 through the water inlet pipe a31, the strip-shaped air bag 15, the communicating pipe a33 and the connecting pipe a3711, and in the water draining process, the water flow in the square tank b371 is discharged into the water tank 12 through the connecting pipe b3712, the communicating pipe b35, the strip-shaped air bag 15 and the water draining pipe b 36;
the circulating water flow takes away the heat on the permanent magnet synchronous motor main body 10, and meanwhile, the first air bag 14 is inflated to press the strip-shaped air bag 15 on the outer surface wall of the permanent magnet synchronous motor main body 10, so that the strip-shaped air bag 15 covers most of the outer surface wall of the permanent magnet synchronous motor main body 10 in a larger size, and the cooling effect is enhanced;
step three, circulating water cooling process: in the initial state, as shown in fig. 10, the positioning balls 2556 are inserted into one group of positioning holes 2543 to limit the rotation of the rotating sleeve 255;
the air in the square tank body a25 enters the first air bag 14 through the empty slot 2511, the vent hole a2521, the central hole 2551, the vent slot 2552, the vent slot 2553, the vent hole b2541 and the vent pipe b256, after the first air bag 14 is full, the rotating sleeve 255 is rotated (180 degrees) manually, so as to drive the positioning ball 2556 to be inserted into the other group of positioning holes 2543, and at the moment, the vent slot 2553 is communicated with the vent hole c2542;
air in the square tank a25 is sprayed out through the air spraying pipe 122 by the air pipe c 257; the water discharged from the drain pipe b36 is horizontally spread on the inclined plate 121, and the air jet pipe 122 jets the air flow to the water flow on the inclined plate 121, thereby cooling the water flow, and the cooled water flows back to the bottom of the water tank 12.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A permanent magnet synchronous motor driving device, comprising a permanent magnet synchronous motor main body (10) and a driving shaft (11) installed at one end of the permanent magnet synchronous motor main body (10), characterized in that the device further comprises:
the water tank (12) is arranged at the bottom of the permanent magnet synchronous motor main body (10);
the circular shell (13) is sleeved on the outer side of the permanent magnet synchronous motor main body (10), and the circular shell (13) is arranged on the water tank (12);
-a first balloon (14), said first balloon (14) being mounted inside said circular shell (13);
a plurality of groups of strip-shaped air bags (15) are arranged on two sides of the permanent magnet synchronous motor main body (10);
the air charging unit (2) charges air into the first air bag (14) and drives the strip-shaped air bag (15) to be completely attached to the outer surface wall of the permanent magnet synchronous motor main body (10);
the circulating water pumping unit (3), the circulating water pumping unit (3) is used for circulating water into the strip-shaped air bag (15) so as to cool the permanent magnet synchronous motor main body (10).
2. A permanent magnet synchronous motor drive according to claim 1, characterized in that the air charging unit (2) comprises:
the gear a (21), the said gear a (21) is installed in the said permanent magnet synchronous motor body (10) output;
-a connection frame (22), said connection frame (22) being mounted on said circular shell (13);
a central shaft (23), wherein the central shaft (23) is mounted on the connecting frame (22);
a gear b (24), the gear b (24) is mounted on the central shaft (23), and the gear a (21) is meshed with the gear b (24);
a square tank body a (25), wherein the square tank body a (25) is arranged on one side of the round shell (13);
a piston a (26), wherein the piston a (26) is arranged in the square tank body a (25) in a sliding manner;
a motion rod a (27), wherein the motion rod a (27) is arranged on the piston a (26);
and the transmission assembly a (28), wherein the central shaft (23) rotates to drive the motion rod a (27) to move through the transmission assembly a (28).
3. A permanent magnet synchronous motor drive according to claim 2, wherein the transmission assembly a (28) comprises:
a mounting frame a (281), wherein the mounting frame a (281) is mounted on the square tank body a (25);
a rotating rod a (282), wherein the rotating rod a (282) is rotatably arranged on the mounting frame a (281);
a rotating sleeve a (283), wherein the rotating sleeve a (283) is arranged on the rotating rod a (282), and an inclined ring groove a (2831) is formed in the rotating sleeve a (283);
a sliding rod a (284), wherein the sliding rod a (284) is installed on the moving rod a (27), and the sliding rod a (284) slides in the inclined ring groove a (2831);
and the central shaft (23) is in transmission connection with the rotating rod a (282) through the belt a (285).
4. A permanent magnet synchronous motor drive according to claim 3, characterized in that the circulating pumping unit (3) comprises:
a plurality of groups of water inlet pipes a (31), wherein the water inlet pipes a (31) are communicated with the water tank (12), and the water inlet pipes a (31) are communicated with the bottom of one side of the strip-shaped air bag (15);
a communication tube a (33), wherein the communication tube a (33) is arranged above one side of the strip-shaped air bag (15);
a communicating tube b (35), the communicating tube b (35) being installed above the strip-shaped air bag (15) on the other side;
a drain pipe b (36), wherein the drain pipe b (36) is arranged at the bottom of the strip-shaped air bag (15) at the other side;
and the circulating water pumping assembly (37), and the circulating water pumping assembly (37) is arranged above the circular shell (13).
5. A permanent magnet synchronous motor drive according to claim 4, wherein the circulation pumping assembly (37) comprises:
a square tank b (371), the square tank b (371) being mounted on the communication pipe a (33) and the communication pipe b (35);
a piston b (372), wherein the piston b (372) is slidably arranged in the square tank b (371);
a moving rod b (373), the moving rod b (373) being mounted on the piston b (372);
a mounting bracket b (374), wherein the mounting bracket b (374) is mounted on the square tank b (371);
a rotating rod b (375), wherein the rotating rod b (375) is rotatably arranged on the mounting frame b (374);
a rotating sleeve b (376), wherein the rotating sleeve b (376) is arranged on the rotating rod b (375), and an inclined ring groove b (3761) is formed in the rotating sleeve b (376);
a sliding rod b (377), the sliding rod b (377) is installed on the moving rod b (373), and the sliding rod b (377) slides in the inclined ring groove b (3761);
and the central shaft (23) is in transmission connection with the rotating rod b (375) through the belt b (378).
6. The permanent magnet synchronous motor driving device according to claim 5, wherein the communicating pipe a (33) is communicated with the square tank b (371) through a connecting pipe a (3711), the communicating pipe b (35) is communicated with the square tank b (371) through a connecting pipe b (3712), and a check valve a (3713) is arranged in the connecting pipe a (3711) and the connecting pipe b (3712).
7. A permanent magnet synchronous motor drive according to claim 6, wherein the air charging unit (2) further comprises:
a connection pipe c (251), wherein the connection pipe c (251) is installed on the square tank a (25);
a circular plate a (252), wherein the circular plate a (252) is arranged on the connecting pipe c (251), a vent hole a (2521) is formed in the circular plate a (252), and the vent hole a (2521) is communicated with the connecting pipe c (251);
the fixing frame (253), the fixing frame (253) is installed on the square tank body a (25);
a circular plate b (254), wherein the circular plate b (254) is arranged on the fixing frame (253), and the circular plate b (254) is provided with a vent hole b (2541) and a vent hole c (2542);
a rotating sleeve (255), wherein the rotating sleeve (255) is rotatably arranged between the circular plate a (252) and the circular plate b (254);
a vent tube b (256), the vent tube b (256) being provided between the first air bag (14) and the vent hole b (2541);
and a vent pipe c (257), wherein the vent pipe c (257) is arranged between the water tank (12) and the vent hole c (2542).
8. The permanent magnet synchronous motor driving device according to claim 7, wherein a central hole (2551), a ventilation groove (2552) and a ventilation groove (2553) are formed in the rotating sleeve (255), and the central hole (2551) is communicated with the ventilation hole a (2521); the vent groove (2553) communicates with the vent hole b (2541) or the vent hole c (2542).
9. The permanent magnet synchronous motor driving device according to claim 8, wherein a buffer groove (2554) is formed in the rotary sleeve (255), an elastic connecting piece (2555) is arranged in the buffer groove (2554), two groups of positioning holes (2543) are formed in the circular plate b (254), and positioning balls (2556) inserted into the positioning holes (2543) are arranged at the free ends of the elastic connecting pieces (2555).
10. The permanent magnet synchronous motor driving device according to claim 9, wherein an inclined plate (121) and a plurality of groups of air ejector pipes (122) are arranged in the water tank (12), the air ejector pipes (122) are communicated with the ventilation pipe c (257), the plurality of groups of air ejector pipes (122) correspond to the bottom position of the inclined plate (121), and water discharged by the water discharge pipe b (36) flows on the inclined plate (121).
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| CN202311341025.3A CN117294079B (en) | 2023-10-17 | 2023-10-17 | Permanent magnet synchronous motor driving device |
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| CN202311341025.3A CN117294079B (en) | 2023-10-17 | 2023-10-17 | Permanent magnet synchronous motor driving device |
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|---|---|
| CN117294079B (en) | 2024-05-07 |
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Effective date of registration: 20240311 Address after: No. A-1001, China Internet of Things International Innovation Park, No. 200 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province, 214000 Applicant after: Wuxi Jiete Electric Co.,Ltd. Country or region after: China Address before: No. 326 Yiyang Avenue, High tech Industrial Development Zone, Siyang County, Suqian City, Jiangsu Province, 214000 Applicant before: Jiangsu Jiete Electromechanical Technology Co.,Ltd. Country or region before: China |
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