CN113410948A - High-speed asynchronous motor integrating stator section and rotor blade - Google Patents
High-speed asynchronous motor integrating stator section and rotor blade Download PDFInfo
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- CN113410948A CN113410948A CN202110670028.6A CN202110670028A CN113410948A CN 113410948 A CN113410948 A CN 113410948A CN 202110670028 A CN202110670028 A CN 202110670028A CN 113410948 A CN113410948 A CN 113410948A
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- stator
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- integrated
- slotless
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- 238000004804 winding Methods 0.000 claims abstract description 49
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 230000011218 segmentation Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 13
- 230000010354 integration Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a stator segmentation and rotor blade integrated high-speed asynchronous motor, which comprises a blade integrated slotless rotor, a segmentation winding stator, and a magnetic suspension bearing system for fixing the relative position between the blade integrated slotless rotor and the segmentation winding stator; the paddle integrated slotless rotor comprises a rotor core, paddles and a conductor layer, the conductor layer is arranged on the periphery of the rotor core, the paddles are evenly arranged in the rotor core, the sectional winding stator comprises an arc-shaped stator core and a three-phase winding, the slots are formed in the inner side of the arc-shaped stator core, and the three-phase winding is wound at the slots in the side of the arc-shaped stator core. The invention adopts the mode that the conductor layer is fixed on the outer surface of the rotor core, thus reducing the manufacturing cost and improving the stability under the working condition of high-speed operation. The sectional structure can save stator materials, reduce the cost of the motor and improve the heat dissipation capability of the motor.
Description
Technical Field
The invention relates to the field of high-speed asynchronous motors, in particular to a stator-section and rotor-blade integrated high-speed asynchronous motor.
Background
The high-power water pump and the high-power fan are widely applied to occasions such as factories, buildings, tunnels and the like, and most of the existing equipment adopts the motor to drive the paddle shaft to realize the operation of the water pump and the fan equipment. For the blades, the end usually close to the motor shaft is called the blade stem and the end far from the motor shaft is called the blade tip. In order to increase the stiffness of the propeller, the blade root needs to be thickened axially, but the blade tip cannot be too thick. Obviously, when the blade rotates, the thinnest blade tip is also the place where the linear velocity is the greatest, and therefore vibration is easily generated, causing noise. In addition, a water pump and a fan system driven by a shaft motor have large central bearing loading torque force, and the service life of equipment is more easily shortened under severe environments such as high temperature, dust, high humidity, easy corrosion and the like.
The patent with the application number of 201510668147.2 discloses a 'high-efficiency suction and exhaust hollow ring shaftless motor fan', provides a fan comprising core parts such as a hollow cup stator, a hollow cup rotor, a ring wall rotating vane and the like, and has the innovations of barrier-free suction and exhaust, oil smoke corrosion-free motor, no friction dead angle of a rotating inner wall, vortex effect guiding of a wind tunnel and the like. The application number is 201210102763.8's patent discloses an "integration does not have axial-flow motor axial-flow pump", provides the integration does not have axial-flow motor axial-flow pump, solves the shortcoming that traditional axial-flow pump structure is complicated, the installation is inconvenient, dynamic seal design requires highly, with no axial-flow motor with the axial-flow pump integration in an organic whole for but axial-flow pump integral erection is in the straight tube section of pipeline, is showing the compactedness and the silence effect that improve the axial-flow pump, and the system is arranged simply, and occupation space is little, easily construction design. Application number is 201820125503.5 patent, discloses an unmanned aerial vehicle, including fuselage, screw and motor, the shaftless motor of motor for being cyclic annular hollow structure, the screw is the shaftless screw, just the paddle outer end of shaftless screw is fixed in on the inner circle rotor of shaftless motor. The outer end of the paddle of the shaftless propeller is directly and rigidly connected and fixed with the rotor of the shaftless motor, so that the axial thickness of the outer end of the paddle can be increased, and the vibration of the outer end of the paddle with higher linear speed is reduced, and the noise is reduced. The inner end of the paddle becomes a blade tip, the linear speed is low, and the shock absorption is also facilitated. And after the rotating shaft is removed, the airflow is smoother, which is beneficial to reducing the noise.
The blade stems of the blade structures mentioned in the patent are all arranged on the inner wall of the motor rotor, and the blade tips are close to the axis of the motor, so that the advantages are obvious. However, for a large-sized fan (such as a tunnel exhaust fan), the diameter of the fan is large, which results in a large diameter of an integrated motor stator and high manufacturing cost.
Disclosure of Invention
The technical purpose is as follows: aiming at the defects in the prior art, the invention discloses a stator-section and rotor-blade integrated high-speed asynchronous motor, which improves the stability of blades and reduces the noise caused by high linear speed of blade tips of the blades and insufficient mechanical strength by increasing the contact area between a blade stem and a blade integrated slotless rotor. In addition, the invention also realizes the self-starting function of the motor and the light weight and low cost of the stator by the improved scheme of the structure of the integrated slotless rotor of the stator and the blades of the sectional motor.
The technical scheme is as follows: in order to achieve the technical purpose, the invention adopts the following technical scheme.
A stator segmentation, integrated high-speed asynchronous machine of the rotor blade, including the integrated slotless trochanter of the blade, sectional type winding stator and magnetic suspension bearing system of the relative position between integrated slotless trochanter of the fixed blade and sectional type winding stator; the paddle integrated slotless rotor comprises a rotor core, paddles and a conductor layer, wherein the conductor layer is arranged on the periphery of the rotor core, the paddles are uniformly arranged in the rotor core, the sectional winding stator comprises an arc-shaped stator core and a three-phase winding, the slots are formed in the inner side of the arc-shaped stator core, and the three-phase winding is wound at the slots in the side of the arc-shaped stator core.
Preferably, the blades are uniformly arranged in the rotor core, wherein the blades are centrosymmetric and fixed on the inner side of the rotor core.
Preferably, the blade comprises a blade stem, wherein the blade stem is positioned at the outer side of the blade and is fixedly and integrally arranged with the inner wall of the rotor core.
Preferably, the arc-shaped stator cores in the segmented winding stator are designed in a segmented mode, and the electrical angle difference between the arc-shaped stator cores is an integral multiple of 180 degrees.
Preferably, the magnetic suspension bearing system comprises a first excitation control winding part, a second excitation control winding part, a first permanent magnet rotor and a second permanent magnet rotor which are fixed together with the segmented winding stator, wherein the first excitation control winding part is opposite to the first permanent magnet rotor, and the second excitation control winding part is opposite to the second permanent magnet rotor.
Preferably, the rotor conductor layer is made of high-conductivity copper or aluminum and the like, so that the stator magnetic field can generate induced current on the conductor layer, and the slotless rotor can generate torque.
Has the advantages that: the invention has the following beneficial effects:
(1) the shaftless design fixedly connects the blade stems of the blades with the inner side of the rotor core, so that the mechanical strength of the blades is increased, and vibration and noise caused by high linear velocity of the blade stems are reduced;
(2) the sectional winding stator adopts a sectional structure, so that the volume of the sectional winding stator part is reduced and the manufacturing cost of the integrated motor is reduced under the condition of ensuring the output power of the fan; meanwhile, the paddle integrated slotless rotor is in direct contact with air, so that the heat dissipation effect is improved;
(3) the paddle integrated slotless rotor adopts a mode that the conductor layer surrounds the rotor core, reduces the manufacturing and processing difficulty, and simultaneously adopts a conductor layer structure, so that the air gap magnetic field harmonic wave can be reduced, the motor torque pulsation is further reduced to a certain extent, and the noise and the vibration level of the motor are reduced.
Drawings
FIG. 1 is a schematic two-dimensional structure of the present invention;
FIG. 2 is a schematic view of a portion of a three-dimensional structure of the present invention;
FIG. 3 is a schematic view of a blade integrated slotless rotor of the present invention;
fig. 4 is a schematic diagram of the overall three-dimensional structure of the present invention.
Detailed Description
The invention is further explained and explained with reference to the figures and embodiments.
As shown in fig. 1-4, wherein neither fig. 1 nor fig. 2 include a magnetic bearing system 3, and fig. 4 includes a magnetic bearing system 3. A stator segmentation, rotor paddle integration high-speed asynchronous machine, including paddle integration slotless rotor 1, sectional type winding stator 2 and fixed paddle integration slotless rotor 1 and the magnetic suspension bearing system 3 of the relative position between the sectional type winding stator (2). The blade-integrated slotless rotor 1 comprises a rotor core 101, blades 103 and a conductor layer 102, wherein the conductor layer 102 is arranged on the periphery of the rotor core 101, and the blades 103 are uniformly arranged in the rotor core 101.
According to the invention, the paddle integrated slotless rotor adopts a mode that the conductor layer surrounds the rotor core, which is different from the traditional rotor with winding, permanent magnet and squirrel cage structures, so that the manufacturing and processing difficulty is reduced, and meanwhile, the conductor layer structure is adopted, so that the air gap magnetic field harmonic wave can be reduced, the motor torque pulsation is further reduced to a certain extent, and the noise and vibration level of the motor are reduced.
The segmented winding stator 2 comprises arc- shaped stator cores 201 and 203 and three- phase windings 202 and 204 which are grooved along the inner sides, and the three- phase windings 202 and 204 are wound at the positions of the grooves on the inner sides of the arc- shaped stator cores 201 and 203. The magnetic suspension bearing system 3 comprises first excitation control winding parts 301 and 302, second excitation control winding parts 303 and 304, a first permanent magnet rotor 305 and a second permanent magnet rotor 306 which are fixed together with the segmented winding stator 2, wherein the first excitation control winding parts 301 and 302 are opposite to the first permanent magnet rotor 305, the second excitation control winding parts 303 and 304 are opposite to the second permanent magnet rotor 306, and the first permanent magnet rotor 305 and the second permanent magnet rotor 306 are fixed with the edge of the blade integrated slotless rotor 1 to form a supporting function. The stator side of the invention adopts a sectional winding stator 2, not a complete stator.
The sectional type winding stator 2 generates a rotating magnetic field by injecting three-phase current, the conductor layer 102 of the integrated rotor 1 of the blade generates induced eddy current under the action of the magnetic field, and the integrated rotor 1 of the blade has tangential force according to the ampere theorem, so that torque can be generated, the integrated rotor 1 of the blade is driven to rotate, and power and torque are transmitted.
As shown in fig. 3, blade 103 is fixed to the inside of rotor core 101 in a centrosymmetric manner. The stems 104 of the blades 103 are fixed to the inner wall of the rotor core 101 and integrally formed therewith, and together with the conductor layer 102, constitute the blade-integrated slotless rotor 1. According to the invention, through a shaftless design, the blade stems of the blades are fixedly connected with the inner side of the rotor core, so that the mechanical strength of the blades is increased, and vibration and noise caused by high linear velocity of the blade stems are reduced. In addition, the blade stems 104 are positioned on the outer sides of the blades 103 and fixed with the inner wall of the rotor core 101, and the contact area between the blade stems and the blade integrated slotless rotor is increased, so that the stability of the blades is improved, and the noise caused by high linear speed of blade tips of the blades and insufficient mechanical strength is reduced.
Arc stator cores 201 and 203 in the sectional type winding stator 2 are designed in a sectional type, the electrical angle difference between the arc stator cores 201 and 203 is integral multiple of 180 degrees, the rotating magnetic fields generated by the sectional type winding stator 2 are ensured to be in the same direction, and the stress between the stator and the rotor is balanced. The sectional winding stator adopts a sectional structure, so that the volume of the sectional winding stator part is reduced and the manufacturing cost of the integrated motor is reduced under the condition of ensuring the output power of the fan; meanwhile, the paddle integrated slotless rotor is in direct contact with air, so that the heat dissipation effect is improved. In some embodiments, the segmented winding stator can be further divided into 4 segments or more, but the two-segment structure is optimized based on the reduction of the volume and material of the stator.
The outer radius of the paddle is fixed on the inner surface of the conductor core, so that the output of air volume can be improved, and under the condition of the same air volume, the power loss of the motor is reduced, and the efficiency of the motor is improved. In addition, the invention adopts the mode that the conductor layer is fixed on the outer surface of the rotor core, thus reducing the manufacturing cost and improving the stability under the working condition of high-speed operation. The sectional structure can save stator materials, reduce the cost of the motor and improve the heat dissipation capability of the motor.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a high-speed asynchronous machine of stator segmentation, rotor blade integration which characterized in that: the magnetic suspension bearing system comprises a paddle integrated slotless rotor (1), a sectional winding stator (2) and a magnetic suspension bearing system (3) for fixing the relative position between the paddle integrated slotless rotor (1) and the sectional winding stator (2); the blade integrated slotless rotor (1) comprises a rotor core (101), blades (103) and a conductor layer (102), wherein the conductor layer (102) is arranged on the periphery of the rotor core (101), the blades (103) are uniformly arranged in the rotor core (101), the sectional winding stator (2) comprises arc-shaped stator cores (201 and 203) and three-phase windings (202 and 204) which are slotted along the inner side, and the three-phase windings (202 and 204) are wound at the side slots of the arc-shaped stator cores (201 and 203).
2. The stator section and rotor blade integrated high-speed asynchronous motor according to claim 1, characterized in that: the blades (103) are uniformly arranged in the rotor core (101), wherein the blades (103) are centrosymmetric and are fixed on the inner side of the rotor core (101).
3. The stator section and rotor blade integrated high-speed asynchronous motor according to claim 1, characterized in that: the paddle (103) comprises a blade stem (104), wherein the blade stem (104) is positioned on the outer side of the paddle (103) and is fixedly and integrally arranged with the inner wall of the rotor core (101).
4. The stator section and rotor blade integrated high-speed asynchronous motor according to claim 1, characterized in that: arc-shaped stator cores (201, 203) in the sectional type winding stator (2) are designed in a sectional type mode, and the electrical angle difference between the arc-shaped stator cores (201, 203) is integral multiple of 180 degrees.
5. The stator section and rotor blade integrated high-speed asynchronous motor according to claim 1, characterized in that: the magnetic suspension bearing system (3) comprises a first excitation control winding part (301, 302), a second excitation control winding part (303, 304), a first permanent magnet rotor (305) and a second permanent magnet rotor (306), wherein the first excitation control winding part (301, 302) is fixed with the segmented winding stator (2), the first permanent magnet rotor (305) is opposite to the first excitation control winding part, and the second permanent magnet rotor (306) is opposite to the second excitation control winding part (303, 304).
6. The stator section and rotor blade integrated high-speed asynchronous motor according to claim 1, characterized in that: the conductor layer (102) is made of a high-conductivity material and is used for generating induction current on the conductor layer (102) by the magnetic field of the sectional winding stator (2), and further fixing the paddle integrated slotless rotor (1) to generate torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110670028.6A CN113410948A (en) | 2021-06-17 | 2021-06-17 | High-speed asynchronous motor integrating stator section and rotor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110670028.6A CN113410948A (en) | 2021-06-17 | 2021-06-17 | High-speed asynchronous motor integrating stator section and rotor blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113410948A true CN113410948A (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110670028.6A Pending CN113410948A (en) | 2021-06-17 | 2021-06-17 | High-speed asynchronous motor integrating stator section and rotor blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113410948A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050194856A1 (en) * | 2000-09-06 | 2005-09-08 | Lambert Haner | Controlled reluctance AC induction motor |
| CN1945940A (en) * | 2006-07-18 | 2007-04-11 | 沈阳工业大学 | Integrated permanent magnet rotor magnetic suspension high speed motor |
| CN103280922A (en) * | 2013-06-07 | 2013-09-04 | 鲍小福 | Motor |
| CN204013145U (en) * | 2014-07-11 | 2014-12-10 | 扬州大学 | Induction machine |
| CN204992996U (en) * | 2015-08-25 | 2016-01-20 | 马小安 | Asynchronous motor |
-
2021
- 2021-06-17 CN CN202110670028.6A patent/CN113410948A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050194856A1 (en) * | 2000-09-06 | 2005-09-08 | Lambert Haner | Controlled reluctance AC induction motor |
| CN1945940A (en) * | 2006-07-18 | 2007-04-11 | 沈阳工业大学 | Integrated permanent magnet rotor magnetic suspension high speed motor |
| CN103280922A (en) * | 2013-06-07 | 2013-09-04 | 鲍小福 | Motor |
| CN204013145U (en) * | 2014-07-11 | 2014-12-10 | 扬州大学 | Induction machine |
| CN204992996U (en) * | 2015-08-25 | 2016-01-20 | 马小安 | Asynchronous motor |
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| PB01 | Publication | ||
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Application publication date: 20210917 |