CN213027594U - Ultra-high speed motor - Google Patents
Ultra-high speed motor Download PDFInfo
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- CN213027594U CN213027594U CN202020609437.6U CN202020609437U CN213027594U CN 213027594 U CN213027594 U CN 213027594U CN 202020609437 U CN202020609437 U CN 202020609437U CN 213027594 U CN213027594 U CN 213027594U
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- permanent magnet
- output shaft
- end cover
- magnetic ring
- outer rotor
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Abstract
An ultra-high speed motor comprises an output shaft, wherein an upper end cover and a lower end cover are respectively fixed at the upper end and the lower end of a hollow shell, an upper end cover central hole is formed in the upper end cover, the output shaft is inserted in the upper end cover central hole, the upper end of the output shaft extends out of the front end of the upper end cover central hole, a plurality of transverse permanent magnets for output shaft suspension are fixed on the output shaft, a plurality of transverse permanent magnets for upper end cover suspension are fixed on the upper end cover, the transverse permanent magnets for output shaft suspension are opposite to the transverse permanent magnets for upper end cover, the magnetic polarities of opposite surfaces of the transverse permanent magnets and the transverse permanent magnets for upper; the rotating shaft, the coil and the bearing are cooled rapidly through water cooling and air cooling, so that the motor is prevented from being damaged due to high temperature, the rotating shaft is subjected to magnetic suspension force of the supporting magnetic block in the rotating process, the rotating shaft runs in a balanced mode, the noise is low, and the service life is long.
Description
Technical Field
The utility model relates to the technical field of motors, more specifically say and relate to a per minute rotational speed can reach the hypervelocity motor more than 30 ten thousand changes.
Background
At present, the rotating speed of a motor produced at home is generally less than fifty thousand revolutions per minute, a high-rotating-speed motor produced at abroad can reach 5 to 12 ten thousand revolutions per minute, the selling price of the high-rotating-speed motor with the power of about twenty kilowatts at abroad is generally higher, and each high-rotating-speed motor needs forty to fifty thousand RMB.
In order to rapidly fill hydrogen into a hydrogen cylinder, a high-rotation-speed motor is needed, but motors produced by domestic motor manufacturers are not sold at present, and the number of the motors can reach more than fifty thousand revolutions per minute. It is therefore desirable to develop a motor having a speed in excess of fifty thousand revolutions per minute.
The research and development difficulty of the high-rotating-speed motor is as follows: 1. under the condition of high rotating speed, the rotating shaft and the coil generate a large amount of heat which must be taken away in time, otherwise, the motor can be burnt out due to high temperature. 2. The rotating shaft of the motor generally needs to be fixed on a bearing, and under the condition of high rotating speed, the bearing can be burnt out if the heat dissipation performance is not good slightly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at being not enough to prior art, and provide an ultra high speed motor, it lets pivot, coil and bearing rapid cooling through water-cooling and air-cooling to avoid the motor to damage because of the high temperature, the pivot has received the magnetic suspension power of supporting the magnetic path at the rotation in-process, and the pivot operation is balanced, and the noise is little, long service life.
The technical solution of the utility model is as follows:
an ultra-high speed motor comprises an output shaft, wherein an upper end cover and a lower end cover are respectively fixed at the upper end and the lower end of a hollow shell, an upper end cover central hole is formed in the upper end cover, the output shaft is inserted in the upper end cover central hole, the upper end of the output shaft extends out of the front end of the upper end cover central hole, a plurality of transverse permanent magnets for output shaft suspension are fixed on the output shaft, a plurality of transverse permanent magnets for upper end cover suspension are fixed on the upper end cover, the transverse permanent magnets for output shaft suspension are opposite to the transverse permanent magnets for upper end cover, the magnetic polarities of opposite surfaces of the transverse permanent magnets and the transverse permanent magnets for upper;
an upper end cover vertical permanent magnet is fixed on the upper end cover, an output shaft upper end limiting permanent magnet is fixed on the output shaft, and the upper end limiting permanent magnet of the output shaft is opposite to the upper end cover vertical permanent magnet and has the same magnetic polarity of the opposite surfaces; the output shaft is fixed with an output shaft lower end limiting permanent magnet, the shaft support is fixed with a shaft support vertical permanent magnet of the output shaft, and the output shaft lower end limiting permanent magnet and the shaft support are opposite to the output shaft vertical permanent magnet and have the same magnetic polarity of opposite surfaces;
the upper end cover and the shaft support are fixed together through a connecting screw, a transverse permanent magnet at the upper part of the shaft support is fixed on the shaft support, the transverse permanent magnet at the upper part of the shaft support is opposite to one of the transverse permanent magnets, and the magnetic polarities of opposite surfaces of the transverse permanent magnet are the same;
a coil bracket is fixed on the shaft bracket, a coil fixing hole is formed in the coil bracket, and the electromagnetic coil is fixed in the coil fixing hole;
the outer rotor is inserted in the shell, a permanent magnet at the lower part of the shaft support is fixed on the shaft support, a transverse permanent magnet for outer rotor lower part suspension is fixed on the outer rotor, the permanent magnet at the lower part of the shaft support is opposite to the transverse permanent magnet for outer rotor lower part suspension, and the magnetic polarities of opposite surfaces of the permanent magnets are the same;
the outer rotor is fixed with an upper limit permanent magnet and a lower limit permanent magnet, the shaft bracket is fixed with a limit permanent magnet for the outer rotor, the shell is fixed with a limit permanent magnet for the outer rotor, the upper limit permanent magnet of the outer rotor is opposite to the limit permanent magnet for the outer rotor and has the same magnetic polarity of the opposite surface, and the lower limit permanent magnet of the outer rotor is opposite to the limit permanent magnet for the outer rotor and has the same magnetic polarity of the opposite surface;
an upper magnetic ring for outer rotor suspension, a first spacer bush, a driving magnetic ring, a second spacer bush and a main driving magnetic ring are sequentially fixed on the inner wall of the outer rotor from top to bottom, and a coil on the coil support is opposite to the main driving magnetic ring;
the upper end cover is fixed with an upper end cover external rotor permanent magnet, the upper magnetic ring for outer rotor suspension is opposite to the upper end cover external rotor permanent magnet, and the magnetic polarities of opposite surfaces are the same;
the middle magnetic ring is fixed on the rotating shaft, two ends of the rotating shaft are respectively arranged on the shaft seats, and the two shaft seats are respectively fixed on the upper end cover and the shaft bracket;
the driving magnetic ring is opposite to the middle magnetic ring, and the middle magnetic ring is opposite to the output shaft driving magnetic ring;
the number of the middle magnetic rings is four, and the four middle magnetic rings are distributed in the shell in an annular array mode with the circle center of the rotor outside the four middle magnetic rings as the center;
the structure of the drive magnetic ring is as follows: the magnetic pole forming machine comprises a plurality of outer-layer arc-shaped magnetic blocks with the same size, a plurality of inner-layer arc-shaped magnetic blocks with the same size, a plurality of outer-layer arc-shaped magnetic blocks, a plurality of magnetic poles and a plurality of magnetic poles, wherein the outer-layer arc-shaped magnetic blocks are formed into a circle;
the structure of the main driving magnetic ring, the middle magnetic ring and the output shaft driving magnetic ring is the same as that of the driving magnetic ring, the number of outer-layer arc-shaped magnetic blocks of the driving magnetic ring is 12-64, the number of outer-layer arc-shaped magnetic blocks of the middle magnetic ring is four, the number of outer-layer arc-shaped magnetic blocks of the output shaft driving magnetic ring is four, and the number of outer-layer arc-shaped magnetic blocks of the main driving magnetic ring is four-twenty-four;
the upper end limiting permanent magnet of the output shaft is a ring body, one half of the upper end limiting permanent magnet of the output shaft is magnetized into an N pole, the other half of the upper end limiting permanent magnet is magnetized into an S pole according to the up-down sequence, and the structure of the vertical permanent magnet of the upper end cover is the same as that of the upper end limiting permanent magnet of the output shaft;
the transverse permanent magnet for output shaft suspension is a ring body, one half of the transverse permanent magnets for output shaft suspension is magnetized by an entity into an N pole, the other half of the transverse permanent magnets for output shaft suspension is magnetized by an entity into an S pole, one half of the transverse permanent magnets for upper end cover suspension is magnetized by an entity into an N pole, the other half of the transverse permanent magnets for output shaft suspension is magnetized by an entity into an S pole, the transverse permanent magnets for output shaft suspension have the same structure as the limit permanent magnets at the lower end of the output shaft, the transverse permanent magnets of the upper end cover have the same structure as the vertical permanent magnets of the output shaft by the shaft support, the permanent magnets at the lower part of the shaft support have the same structure as the transverse permanent magnets of the upper end cover, the upper magnetic ring for outer rotor suspension and the outer rotor limit permanent magnets of the shaft support have the same structure as the transverse permanent magnets for output shaft suspension, the transverse permanent magnets at the lower part of the outer rotor have the same structure as the permanent magnets The same is carried out; the structure of the upper end cover external rotor permanent magnet is the same as that of the upper end cover transverse permanent magnet;
the connecting sleeve is in interference fit with the plug bush and is tightly fixed on the shaft bracket, and the shaft bracket fixes the limiting permanent magnet block of the outer rotor on the connecting sleeve;
the diameter of the middle magnetic ring is smaller than that of the driving magnetic ring, the distance between the outer diameter surface of the middle magnetic ring and the driving magnetic ring is 50-100 microns, and the distance between the outer diameter surface of the middle magnetic ring and the output shaft driving magnetic ring is 50-100 microns.
The output shafts are suspended by the aid of transverse permanent magnets, are in interference fit with the plug bushes and are fastened on the output shafts, the limiting permanent magnets at the upper ends of the output shafts are in interference fit with the plug bushes and are fastened on the output shafts, the vertical permanent magnets of the upper end covers are in interference fit with the plug bushes and are fastened in the center holes of the upper end covers, and the transverse permanent magnets of the upper end covers are in interference fit with the plug bushes and are fastened in the center holes of the upper end covers of.
The upper magnetic ring, the first spacer bush, the driving magnetic ring, the second spacer bush and the main driving magnetic ring are in interference fit with the plug bushes and are fixedly arranged on the inner wall of the outer rotor.
An air inlet and an air outlet are formed in the shell, an outer rotor ventilation hole is formed in the outer rotor, the air inlet is opposite to the outer rotor ventilation hole, and the fan blows air towards the air inlet.
The shaft support is provided with a shaft support center hole, the lower end of the shaft support extends out of the center hole of the lower end cover, and an electric connecting lead of the electromagnetic coil penetrates out of the shaft support center hole and is led out.
And the upper end cover and the shaft support are provided with communicated water cooling channels, and the water cooling channels are communicated with circulating cooling water.
And a waterproof sealing ring is clamped between the shaft support and the shell.
And the outer diameter surfaces of the outer rotor, the middle magnetic ring and the output shaft driving magnetic ring are all coated with a layer of carbon fiber protective sleeve.
The beneficial effects of the utility model reside in that:
the rotating shaft, the coil and the bearing are cooled rapidly through water cooling and air cooling, so that the motor is prevented from being damaged due to high temperature, the rotating shaft is subjected to magnetic suspension force of the supporting magnetic block in the rotating process, the rotating shaft runs in a balanced mode, the noise is low, and the service life is long.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an output shaft portion;
FIG. 3 is a schematic structural view of an outer rotor;
FIG. 4 is a schematic structural view of a coil support;
FIG. 5 is a perspective view of a coil support;
FIG. 6 is a cross-sectional view of the front end cap;
FIG. 7 is a perspective view of the front end cap;
FIG. 8 is a schematic view of the construction of the shaft support;
FIG. 9 is a perspective view of the shaft support;
FIG. 10 is a schematic view of the front end cap assembled with the axle bracket;
fig. 11 is a schematic structural view of the driving magnetic ring 8 c;
fig. 12 is a schematic structural view of the main drive magnetic ring 8 e;
fig. 13 is a schematic structural view of the middle magnetic ring 10;
fig. 14 is a schematic structural view of the output shaft driving magnetic ring 1 c;
fig. 15 is a schematic structural view of the transverse permanent magnet 1b for output shaft levitation;
fig. 16 is a schematic structural diagram of the transverse permanent magnet 33 of the upper end cover;
fig. 17 is a schematic structural view of the upper end limit permanent magnet 1a of the output shaft;
fig. 18 is a schematic structural diagram of the vertical permanent magnet 32 of the end cover;
fig. 19 is a schematic structural view of a part of the connecting sleeve 5 b.
Detailed Description
Example (b): as shown in fig. 1 to 19, an ultra high speed motor includes an output shaft 1, and is characterized in that: an upper end cover 3 and a lower end cover 4 are respectively fixed at the upper end and the lower end of a hollow shell 2, an upper end cover central hole 31 is formed on the upper end cover 3, an output shaft 1 is inserted in the upper end cover central hole 31, the upper end of the output shaft extends out of the front end of the upper end cover central hole 31, a plurality of output shaft suspension transverse permanent magnets 1b are fixed on the output shaft 1, a plurality of upper end cover transverse permanent magnets 33 are fixed on the upper end cover 3, the output shaft suspension transverse permanent magnets 1b are opposite to the upper end cover transverse permanent magnets 33, the magnetic polarities of the opposite surfaces of the output shaft suspension transverse permanent magnets 1b and the upper end cover transverse permanent magnets 33 are the;
an upper end cover vertical permanent magnet 32 is fixed on the upper end cover 3, an output shaft upper end limiting permanent magnet 1a is fixed on the output shaft 1, and the output shaft upper end limiting permanent magnet 1a is opposite to the upper end cover vertical permanent magnet 32 and has the same magnetic polarity of the opposite surfaces; an output shaft lower end limiting permanent magnet 1d is fixed on the output shaft 1, an output shaft vertical permanent magnet 52 is fixed on the shaft support 5, and the output shaft lower end limiting permanent magnet 1d is opposite to the output shaft vertical permanent magnet 52 through the shaft support and has the same magnetic polarity of the opposite surface;
the upper end cover 3 and the shaft bracket 5 are fixed together through a connecting screw 6, the shaft bracket 5 is fixed with a shaft bracket upper transverse permanent magnet 51, and the shaft bracket upper transverse permanent magnet 51 is opposite to one of the transverse permanent magnets and has the same magnetic polarity of the opposite surface;
a coil bracket 7 is fixed on the shaft bracket 5, a coil fixing hole 71 is formed on the coil bracket 7, and the electromagnetic coil is fixed in the coil fixing hole 71;
the outer rotor 8 is inserted in the shell 2, a shaft support lower permanent magnet 53 is fixed on the shaft support 5, an outer rotor lower suspension transverse permanent magnet 81 is fixed on the outer rotor 8, and the shaft support lower permanent magnet 53 is opposite to the outer rotor lower suspension transverse permanent magnet 81 and has the same magnetic polarity of the opposite surface;
an outer rotor upper limit permanent magnet 82 and an outer rotor lower limit permanent magnet 83 are fixed on the outer rotor 8, an axle support outer rotor limit permanent magnet 54 is fixed on the axle support 5, a shell outer rotor limit permanent magnet 21 is fixed on the shell 2, the outer rotor upper limit permanent magnet 82 is opposite to the axle support outer rotor limit permanent magnet 54, the magnetic polarities of opposite surfaces of the outer rotor upper limit permanent magnet and the shell outer rotor limit permanent magnet 21 are the same, and the magnetic polarities of opposite surfaces of the outer rotor lower limit permanent magnet 83 and the shell outer rotor limit permanent magnet 21 are opposite;
an upper magnetic ring 8a for outer rotor suspension, a first spacer 8b, a driving magnetic ring 8c, a second spacer 8d and a main driving magnetic ring 8e are sequentially fixed on the inner wall of the outer rotor 8 from top to bottom, and a coil on the coil support 7 is opposite to the main driving magnetic ring 8 e;
an upper end cover to outer rotor permanent magnet 22 is fixed on the upper end cover 3, an upper magnetic ring 8a for outer rotor suspension is opposite to the upper end cover to outer rotor permanent magnet 22, and the magnetic polarities of opposite surfaces are the same;
the middle magnetic ring 10 is fixed on a rotating shaft 11, two ends of the rotating shaft 11 are respectively installed on shaft seats 9, and the two shaft seats 9 are respectively fixed on the upper end cover 3 and the shaft support 5;
the driving magnetic ring 8c is opposite to the middle magnetic ring 10, and the middle magnetic ring 10 is opposite to the output shaft driving magnetic ring 1 c;
the number of the middle magnetic rings 10 is four, and the four middle magnetic rings 10 are distributed in the shell 2 in an annular array by taking the circle center of the outer rotor 8 as the center;
the structure of the drive magnetic ring 8c is: a plurality of outer-layer arc-shaped magnetic blocks c1 with the same size are annularly arrayed into a circle and molded together, a plurality of inner-layer arc-shaped magnetic blocks c2 with the same size are annularly arrayed into a circle and molded together, the inner-layer arc-shaped magnetic blocks c2 and the outer-layer arc-shaped magnetic blocks c1 are molded together, the magnetic polarities of two adjacent outer-layer arc-shaped magnetic blocks c1 are opposite, the magnetic polarities of two adjacent inner-layer arc-shaped magnetic blocks c2 are opposite, and the magnetic polarities of the opposite outer-layer arc-shaped magnetic blocks c1 and the inner-layer arc-shaped magnetic blocks c2 are opposite;
the structure of the main driving magnetic ring 8e, the middle magnetic ring 10 and the output shaft driving magnetic ring 1c is the same as that of the driving magnetic ring 8c, the number of outer-layer arc-shaped magnetic blocks c1 of the driving magnetic ring 8c is 12-64, the number of outer-layer arc-shaped magnetic blocks c1 of the middle magnetic ring 10 is four, the number of outer-layer arc-shaped magnetic blocks c1 of the output shaft driving magnetic ring 1c is four, and the number of outer-layer arc-shaped magnetic blocks c1 of the main driving magnetic ring 8e is four-twenty-four;
the upper end limiting permanent magnet 1a of the output shaft is a ring body, one half of the upper end limiting permanent magnet 1a of the output shaft is magnetized into an N pole by an entity a1 in the vertical sequence, the other half of the upper end limiting permanent magnet is magnetized into an S pole by an entity a2, and the structure of the upper end cover vertical permanent magnet 32 is the same as that of the upper end limiting permanent magnet 1a of the output shaft;
the output shaft suspending transverse permanent magnet 1b is a ring body, one half of the output shaft suspending transverse permanent magnet 1b is magnetized with an entity b1 as an N pole, the other half of the output shaft suspending entity b2 is magnetized with an S pole, the upper end cover transverse permanent magnet 33 is magnetized with an entity 331 as an N pole, the other half of the output shaft suspending entity 332 is magnetized with an S pole, the output shaft suspending transverse permanent magnet 1b and the output shaft lower end limit permanent magnet 1d have the same structure, the upper end cover transverse permanent magnet 33 and the shaft support vertical permanent magnet 52 have the same structure, the shaft support lower permanent magnet 53 and the upper end cover transverse permanent magnet 33 have the same structure, the outer rotor suspending upper magnetic ring 8a and the shaft support outer rotor limit permanent magnet 54 and the output shaft suspending transverse permanent magnet 1b have the same structure, the outer rotor lower suspending transverse permanent magnet 81 and the shaft support lower permanent magnet 53 have the same structure, the upper limit permanent magnet 82 and the lower limit permanent magnet 83 of the outer rotor have the same structure as the transverse permanent magnet 1b for output shaft suspension; the structure of the outer rotor permanent magnet 22 and the upper end cover transverse permanent magnet 33 is the same;
the connecting sleeve 5b is in interference fit with the inserting sleeve and is tightly fixed on the shaft bracket 5, and the shaft bracket fixes the external rotor limit permanent magnet 54 on the connecting sleeve 5 b;
the diameter of the middle magnetic ring 10 is smaller than that of the driving magnetic ring 8c, the distance between the outer diameter surface of the middle magnetic ring 10 and the driving magnetic ring 8c is 50-100 microns, and the distance between the outer diameter surface of the middle magnetic ring 10 and the output shaft driving magnetic ring 1c is 50-100 microns.
The output shafts are in interference fit with the transverse permanent magnets 1b in a sleeved mode and are fastened on the output shafts 1, the limiting permanent magnets 1a at the upper ends of the output shafts are in interference fit with the sleeved mode and are fastened on the output shafts 1, the vertical permanent magnets 32 of the upper end cover are in interference fit with the sleeved mode and are fastened in an upper end cover center hole 31 of the upper end cover 3, and the transverse permanent magnets 33 of the upper end cover are in interference fit with the sleeved mode and are fastened in the upper end cover center hole 31 of the upper end cover 3.
The upper magnetic ring 8a, the first spacer 8b, the driving magnetic ring 8c, the second spacer 8d and the main driving magnetic ring 8e are all in interference fit with the plug bushes and are fastened on the inner wall of the outer rotor 8.
An air inlet hole 23 and an air outlet hole 24 are formed in the shell 2, an outer rotor vent hole 8f is formed in the outer rotor 8, the air inlet hole 23 is opposite to the outer rotor vent hole 8f, and the fan 12 blows air towards the air inlet hole 23.
The shaft bracket 5 has a shaft bracket center hole 5a, the lower end of the shaft bracket 5 protrudes from the center hole of the lower end cap 4, and the electric connection lead of the electromagnetic coil is led out through the shaft bracket center hole 5 a.
And the upper end cover 3 and the shaft bracket 5 are provided with communicated water cooling channels S, and circulating cooling water is communicated in the water cooling channels S.
A waterproof seal ring 13 is interposed between the shaft support 5 and the housing 2.
The outer diameter surfaces of the outer rotor 8, the middle magnetic ring 10 and the output shaft driving magnetic ring 1c are coated with a layer of carbon fiber protective sleeve.
The working principle is as follows: the coil controller controls the current on the electromagnetic coil on the coil support 7 to change continuously, so that the magnetic field of the electromagnetic coil changes continuously to trigger the main driving magnetic ring 8e to rotate. This is the same principle as the brushless motor's coil driven shaft. The coil controller can be the coil controller of the existing brushless motor.
The main driving magnetic ring 8e rotates to drive the driving magnetic ring 8c to rotate, the driving magnetic ring 8c drives the middle magnetic ring 10 to rotate, the middle magnetic ring 10 drives the output shaft to drive the magnetic ring 1c to rotate, the rotating speed of the main driving magnetic ring 8e is three to sixty thousand revolutions per minute, the middle magnetic ring 10 accelerates to drive the output shaft to drive the magnetic ring 1c to rotate, and the rotating speed of the output shaft 1 can reach 18 to 36 thousand revolutions.
The whole cooling is realized by adopting air cooling and water cooling, so that the output shaft 1 is prevented from being damaged due to overheating, and the shaft seat 9 and the outer rotor 8 are prevented from being damaged due to overheating in the working process.
Claims (8)
1. An ultra high speed motor comprising an output shaft (1), characterized in that: an upper end cover (3) and a lower end cover (4) are respectively fixed at the upper end and the lower end of a hollow shell (2), an upper end cover central hole (31) is formed in the upper end cover (3), an output shaft (1) is inserted in the upper end cover central hole (31) in a sleeved mode, the upper end of the output shaft extends out of the front end of the upper end cover central hole (31), a plurality of transverse permanent magnets (1b) for output shaft suspension are fixed on the output shaft (1), a plurality of transverse permanent magnets (33) for upper end covers are fixed on the upper end cover (3), the transverse permanent magnets (1b) for output shaft suspension are opposite to the transverse permanent magnets (33) for upper end covers, the opposite surfaces of the transverse permanent magnets are the same, and an output shaft driving magnetic ring (1 c;
an upper end cover vertical permanent magnet (32) is fixed on the upper end cover (3), an output shaft upper end limiting permanent magnet (1a) is fixed on the output shaft (1), and the output shaft upper end limiting permanent magnet (1a) is opposite to the upper end cover vertical permanent magnet (32) and has the same magnetic polarity of the opposite surfaces; an output shaft lower end limiting permanent magnet (1d) is fixed on the output shaft (1), an output shaft vertical permanent magnet (52) of the shaft support pair is fixed on the shaft support (5), and the output shaft lower end limiting permanent magnet (1d) is opposite to the output shaft vertical permanent magnet (52) of the shaft support pair and has the same magnetic polarity of the opposite surfaces;
the upper end cover (3) and the shaft support (5) are fixed together through a connecting screw (6), a transverse permanent magnet block (51) at the upper part of the shaft support is fixed on the shaft support (5), the transverse permanent magnet block (51) at the upper part of the shaft support is opposite to one of the transverse permanent magnet blocks, and the magnetic polarities of the opposite surfaces of the transverse permanent magnet blocks are the same;
a coil support (7) is fixed on the shaft support (5), a coil fixing hole (71) is formed in the coil support (7), and the electromagnetic coil is fixed in the coil fixing hole (71);
the outer rotor (8) is inserted in the shell (2), a shaft support lower permanent magnet block (53) is fixed on the shaft support (5), a transverse permanent magnet block (81) for outer rotor lower suspension is fixed on the outer rotor (8), and the shaft support lower permanent magnet block (53) is opposite to the transverse permanent magnet block (81) for outer rotor lower suspension and has the same magnetic polarity of the opposite surface;
an outer rotor upper limit permanent magnet (82) and an outer rotor lower limit permanent magnet (83) are fixed on the outer rotor (8), an axle support outer rotor limit permanent magnet (54) is fixed on the axle support (5), a shell outer rotor limit permanent magnet (21) is fixed on the shell (2), the outer rotor upper limit permanent magnet (82) is opposite to the axle support outer rotor limit permanent magnet (54) and opposite surfaces have the same magnetic polarity, and the outer rotor lower limit permanent magnet (83) is opposite to the shell outer rotor limit permanent magnet (21) and opposite surfaces have the same magnetic polarity;
an upper magnetic ring (8a) for outer rotor suspension, a first spacer sleeve (8b), a driving magnetic ring (8c), a second spacer sleeve (8d) and a main driving magnetic ring (8e) are sequentially fixed on the inner wall of the outer rotor (8) from top to bottom, and a coil on the coil support (7) is opposite to the main driving magnetic ring (8 e);
an upper end cover external rotor permanent magnet (22) is fixed on the upper end cover (3), an upper magnetic ring (8a) for outer rotor suspension is opposite to the upper end cover external rotor permanent magnet (22), and the magnetic polarities of opposite surfaces are the same;
the middle magnetic ring (10) is fixed on the rotating shaft (11), two ends of the rotating shaft (11) are respectively installed on the shaft seats (9), and the two shaft seats (9) are respectively fixed on the upper end cover (3) and the shaft support (5);
the driving magnetic ring (8c) is opposite to the middle magnetic ring (10), and the middle magnetic ring (10) is opposite to the output shaft driving magnetic ring (1 c);
the number of the middle magnetic rings (10) is four, and the four middle magnetic rings (10) are distributed in the shell (2) in an annular array with the circle center of the outer rotor (8) as the center;
the structure of the driving magnetic ring (8c) is as follows: a plurality of outer-layer arc-shaped magnetic blocks (c1) with the same size are annularly arrayed into a circle and molded together, a plurality of inner-layer arc-shaped magnetic blocks (c2) with the same size are annularly arrayed into a circle and molded together, the inner-layer arc-shaped magnetic blocks (c2) and the outer-layer arc-shaped magnetic blocks (c1) are molded together, the magnetic polarities of the two adjacent outer-layer arc-shaped magnetic blocks (c1) are opposite, the magnetic polarities of the two adjacent inner-layer arc-shaped magnetic blocks (c2) are opposite, and the magnetic polarities of the opposite outer-layer arc-shaped magnetic block (c1) and the inner-layer arc-shaped magnetic block (c2) are opposite;
the structure of the main driving magnetic ring (8e), the structure of the middle magnetic ring (10) and the structure of the output shaft driving magnetic ring (1c) are the same as those of the driving magnetic ring (8c), the number of outer-layer arc-shaped magnetic blocks (c1) of the driving magnetic ring (8c) is 12-64, the number of outer-layer arc-shaped magnetic blocks (c1) of the middle magnetic ring (10) is four, the number of outer-layer arc-shaped magnetic blocks (c1) of the output shaft driving magnetic ring (1c) is four, and the number of outer-layer arc-shaped magnetic blocks (c1) of the main driving magnetic ring (8e) is four-twenty;
the upper end limiting permanent magnet (1a) of the output shaft is a ring body, one half of the upper end limiting permanent magnet (1a) of the output shaft is magnetized into an N pole, the other half of the upper end limiting permanent magnet (1a) is magnetized into an S pole, and the structure of the upper end cover vertical permanent magnet (32) is the same as that of the upper end limiting permanent magnet (1a) of the output shaft;
the output shaft suspension transverse permanent magnet (1b) is a ring body, one half of the output shaft suspension transverse permanent magnet (1b) in the internal and external sequence is magnetized by an entity (b1) to form an N pole, the other half of the output shaft suspension entity (b2) is magnetized by an S pole, the upper end cover transverse permanent magnet (33) in the internal and external sequence is magnetized by an entity (331) to form an N pole, the other half of the output shaft suspension entity (332) is magnetized by an S pole, the output shaft suspension transverse permanent magnet (1b) and the output shaft lower end limit permanent magnet (1d) have the same structure, the upper end cover transverse permanent magnet (33) and the shaft support have the same structure as the output shaft vertical permanent magnet (52), the shaft support lower permanent magnet (53) and the upper end cover transverse permanent magnet (33) have the same structure, the outer rotor suspension upper magnetic ring (8a) and the shaft support rotor external limit permanent magnet (54) have the same structure as the output shaft suspension transverse permanent magnet (1b), the structure of the outer rotor lower suspension transverse permanent magnet (81) is the same as that of the shaft support lower permanent magnet (53), and the structure of the outer rotor upper limiting permanent magnet (82) and the structure of the outer rotor lower limiting permanent magnet (83) are the same as that of the output shaft suspension transverse permanent magnet (1 b); the upper end cover has the same structure with the outer rotor permanent magnet (22) and the upper end cover transverse permanent magnet (33);
the connecting sleeve (5b) is in interference fit with the inserting sleeve and is tightly fixed on the shaft bracket (5), and the shaft bracket fixes the external rotor limiting permanent magnet block (54) on the connecting sleeve (5 b);
the diameter of the middle magnetic ring (10) is smaller than that of the driving magnetic ring (8c), the distance between the outer diameter surface of the middle magnetic ring (10) and the driving magnetic ring (8c) is 50-100 microns, and the distance between the outer diameter surface of the middle magnetic ring (10) and the output shaft driving magnetic ring (1c) is 50-100 microns.
2. An ultra high speed motor according to claim 1, wherein: a plurality of output shafts are suspended by using transverse permanent magnets (1b) in an interference fit plug bush and are fastened on the output shafts (1), the upper end limiting permanent magnet (1a) of each output shaft is in an interference fit plug bush and is fastened on the output shaft (1), the upper end cover vertical permanent magnet (32) is in an interference fit plug bush and is fastened in an upper end cover center hole (31) of the upper end cover (3), and the upper end cover transverse permanent magnet (33) is in an interference fit plug bush and is fastened in the upper end cover center hole (31) of the upper end cover (3).
3. An ultra high speed motor according to claim 1, wherein: the upper magnetic ring (8a), the first spacer bush (8b), the driving magnetic ring (8c), the second spacer bush (8d) and the main driving magnetic ring (8e) are in interference fit with each other and are fixedly arranged on the inner wall of the outer rotor (8).
4. An ultra high speed motor according to claim 1, wherein: an air inlet hole (23) and an air outlet hole (24) are formed in the shell (2), an outer rotor vent hole (8f) is formed in the outer rotor (8), the air inlet hole (23) is opposite to the outer rotor vent hole (8f), and the fan (12) blows air towards the air inlet hole (23).
5. An ultra high speed motor according to claim 1, wherein: the shaft support (5) is provided with a shaft support center hole (5a), the lower end of the shaft support (5) extends out of the center hole of the lower end cover (4), and an electric connection lead of the electromagnetic coil penetrates out of the shaft support center hole (5a) and is led out.
6. An ultra high speed motor according to claim 1, wherein: the upper end cover (3) and the shaft bracket (5) are formed with a water cooling channel (S) which is communicated with each other, and the water cooling channel (S) is communicated with circulating cooling water.
7. An ultra high speed motor according to claim 1, wherein: a waterproof sealing ring (13) is clamped between the shaft support (5) and the shell (2).
8. An ultra high speed motor according to claim 1, wherein: the outer diameter surfaces of the outer rotor (8), the middle magnetic ring (10) and the output shaft driving magnetic ring (1c) are coated with a layer of carbon fiber protective sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609437.6U CN213027594U (en) | 2020-04-22 | 2020-04-22 | Ultra-high speed motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609437.6U CN213027594U (en) | 2020-04-22 | 2020-04-22 | Ultra-high speed motor |
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| CN213027594U true CN213027594U (en) | 2021-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819072A (en) * | 2021-10-18 | 2021-12-21 | 杭州旋速科技有限公司 | Turbofan magnetic suspension pipeline fan |
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2020
- 2020-04-22 CN CN202020609437.6U patent/CN213027594U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819072A (en) * | 2021-10-18 | 2021-12-21 | 杭州旋速科技有限公司 | Turbofan magnetic suspension pipeline fan |
| CN113819072B (en) * | 2021-10-18 | 2023-08-22 | 杭州旋速科技有限公司 | Turbofan magnetic suspension pipeline fan |
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