WO2012012925A1 - 一种拥有径向磁路的无槽非晶铁合金电机及其制造方法 - Google Patents
一种拥有径向磁路的无槽非晶铁合金电机及其制造方法 Download PDFInfo
- Publication number
- WO2012012925A1 WO2012012925A1 PCT/CN2010/001969 CN2010001969W WO2012012925A1 WO 2012012925 A1 WO2012012925 A1 WO 2012012925A1 CN 2010001969 W CN2010001969 W CN 2010001969W WO 2012012925 A1 WO2012012925 A1 WO 2012012925A1
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- WIPO (PCT)
- Prior art keywords
- stator
- rotor
- motor
- core
- permanent magnet
- Prior art date
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Classifications
-
- 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
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/47—Air-gap windings, i.e. iron-free windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
- Y10T29/49012—Rotor
Definitions
- This invention relates to magnetic circuit components for the manufacture of electrical machines, and more particularly to stator or rotor bodies characterized by armature windings and featuring magnetic materials.
- the amorphous iron alloy material is an alloy material having a long-range disordered structure formed by using metal atoms in an active state in a high-temperature molten state to be in an orderly arrangement of a crystal phase in a rapid cooling.
- this amorphous iron alloy material has a series of advantages such as high magnetic permeability, large electric resistance, small eddy current loss and high frequency characteristics, but its processing characteristics are poor, it is difficult to punch into sheets and it is difficult to carry out large volume. Cutting processing.
- the prior art motor includes a generator and an electric motor, including a casing, an end cover, a stator, a rotor and a motor shaft.
- the stator is fixed in the casing, the rotor is fixed on the motor shaft and arranged in the stator, and an air gap is provided between the stator and the motor.
- the shaft passes through the stator core and is rotatably mounted to the mounting position determined by the casing and the end cover.
- the stator is composed of a stator core and a stator winding.
- the stator core is generally made of a soft magnetic material such as a silicon steel sheet, and has an axial tooth groove on the inner side thereof, and the stator winding is embedded in the tooth groove.
- the iron loss occupies a considerable proportion.
- a prior art motor using an amorphous iron alloy material such as the Chinese patent application "New Type A Motor of Amorphous Material” disclosed in CN 1874113A, wherein the stator core is a cylindrical amorphous material shell and a silicon steel sheet stacked pole. Bonding forms a slot, a stator winding is embedded in the slot to form a stator, and an amorphous material is partially used in the stator core of the motor.
- the rotor of the hybrid material core motor is still a traditional structure, and the stator core is made of two materials and two parts respectively, and the structure and the manufacturing process are complicated, and the cogging effect is given to the motor belt. The resulting electromagnetic noise and cogging losses have not been overcome.
- the stator core In the slotless motor to overcome the defects caused by the cogging effect, such as the technology disclosed in CN 2 891450Y entitled "High-output permanent magnet brushless slotless motor", the stator core still uses the traditional The silicon steel sheet material is laminated, and the rotor is composed of a core of a conventional material and a permanent magnet magnetic steel wrapped around the core.
- the inherent disadvantages of silicon steel sheets in terms of magnetic permeability, electrical resistance, eddy current loss and high frequency characteristics make it impossible to manufacture more efficient motors. [Summary of the Invention]
- the technical problem to be solved by the present invention is to provide a motor having a slotless amorphous iron alloy radial magnetic circuit, which has low eddy current loss, excellent high frequency characteristics, and electrical 'magnetic', avoiding the above-mentioned deficiencies of the prior art.
- the invention has the advantages of low noise, no cogging loss, high efficiency, high power density and high material utilization rate; and the invention also provides a manufacturing method for a radial magnetic circuit motor having a slotless amorphous iron alloy.
- the invention may constitute an inner rotor motor or an outer rotor motor.
- a motor having a slotless amorphous iron alloy radial magnetic circuit including a casing, an end cover, a stator, a rotor and a motor shaft; the end cover is mounted at the end of the casing and
- the casing jointly determines the mounting position of the motor shaft, the stator is fixed in the casing, the rotor is fixed on the motor shaft and arranged in the stator, and has a radial air gap with the stator, and the motor shaft and the upper rotor thereof pass through the stator a content cavity rotatably mounted on the mounting position determined by the casing and the end cover;
- the stator includes a stator core and a stator winding; the stator core is a cylinder wound from an amorphous iron alloy strip; the stator The winding is generally circular and fixed on the inner cylindrical surface of the stator core; the inner wall of the stator winding is also fixed with a metal reinforcing bushing having the same
- the inner wall of the stator core may further be provided with a first insulating skeleton, the main body of the first insulating skeleton is cylindrical, and one end surface has an annular radial flange, and two identical first insulations
- the skeletons are respectively inserted and abutted from the ends of the stator core cavity by their unflanged ends, and are fixed to the inner wall of the stator core, and the annular radial flanges of the end faces of the two first insulating skeletons are abutted Both ends of the stator core content cavity.
- the stator winding inner cavity further has a circular second insulating frame supported and fixed therein, wherein the second insulating frame has the same axial length as the stator winding; the inner wall of the second insulating frame is The outer surface of the metal reinforcing bushing is fixed. 'The structure of each insulation skeleton can enhance the stability and insulation safety of the stator windings.
- stator winding ' is fixed on the inner cylindrical surface of the stator core', and the stator winding may be directly fixed to the inner wall of the stator core; or the stator winding may be fixed to the inner wall of the first insulating frame, the first insulating skeleton It is fixed to the inner wall of the stator core.
- the "fixing” includes adhesive bonding using an adhesive, and the adhesive for bonding fixation may be any adhesive that has a temperature not lower than the maximum temperature rise of the motor.
- the motor having the slotless amorphous iron alloy radial magnetic circuit of the present invention is a brushless DC motor or an AC synchronous motor, including a DC or AC motor and a generator. It can also be an AC asynchronous motor.
- the rotor of the present invention comprises a rotor core and a permanent magnet; the rotor core may be formed by laminating a conventional material such as silicon steel; or the rotor core is a hollow columnar structure made of an amorphous iron alloy material.
- the radial outer surface is matched with the permanent magnet, and the permanent magnet is inlaid or sleeved on the outer surface of the rotor core; the inner wall of the rotor core is provided with a key groove for coupling with the motor shaft.
- the permanent magnet is a neodymium iron boron high magnetic energy alloy, or a neodymium or barium ferrite.
- the permanent magnet When the permanent magnet is a hollow cylinder, the permanent magnet is formed by forming a plurality of magnetic poles on the circumferential surface, the outer surface of the rotor core is cylindrical, and the outer diameter thereof is adapted to the inner diameter of the permanent magnet.
- the magnet cylinder is directly sleeved on the rotor core.
- the outer surface of the rotor core has the same number of axial four slots adapted to the cross-sectional shape of each permanent magnet, Permanent magnets are embedded in these axial grooves to be fixed.
- the axial IHJ slot may be a dovetail slot, and correspondingly the permanent magnet has a dovetail structure.
- the rotor of the present invention When the present invention is implemented on an AC asynchronous motor, the rotor of the present invention includes a rotor core and a squirrel cage on the surface thereof, the rotor core is set on the motor shaft, and the squirrel cage is fixed on the outer surface of the rotor core;
- the rotor core may be formed by laminating a conventional material such as a silicon steel sheet; or the rotor core is a hollow columnar structure made of an amorphous iron alloy material, the radially outer surface thereof and the squirrel cage shaft Adapting to the shape of a copper strip or an aluminum strip, the copper strip or the aluminum strip is embedded on the outer surface of the rotor core, and is fixed by copper or aluminum rings at both ends; the inner wall of the rotor core is also opened a keyway for coupling to the motor shaft.
- a motor having a slotless amorphous iron alloy radial magnetic circuit includes a stator, an outer rotor, and a motor support shaft for mounting; the outer rotor is disposed outside the stator, including the casing, Left and right end caps and permanent magnets, the permanent magnets are fixed on the inner wall of the casing, the left and right end caps are fixed to the left and right ends of the casing, and the outer rotor is rotatably mounted on the motor support shaft; the stator is fixed to the motor support shaft And comprising: a stator core and a stator winding; the stator core is a hollow columnar structure made of an amorphous iron alloy material; the stator winding is generally cylindrical, fixed on the outer cylindrical surface of the stator core, and the stator winding The radial outer surface has a metal reinforcing sleeve, and a radial air gap is formed between the outer cylindrical surface of the metal reinforcing sle
- the rotor core of the present invention is produced by processing a profile blank obtained by winding a ribbon of an amorphous iron alloy.
- the present invention can simultaneously employ a profile wound from an amorphous iron alloy strip as a radial magnetic circuit blank for the stator and rotor of the motor. Accordingly, for an inner rotor motor, the present invention also provides a method of manufacturing a radial magnetic circuit motor having a slotless amorphous iron alloy, comprising the steps of:
- Stator fabrication first make a sub-winding, then shape it to form the shape and size required for the stator winding; and selectively perform one of the following steps:
- the first insulating skeleton is fixed to the inner wall of the stator core, and the outer cylindrical surface of the stator winding is fixed to the inner wall of the first insulating frame to complete the stator production;
- stator winding is directly fixed on the inner wall of the stator core to complete the stator fabrication
- Rotor production a keyway connected to the motor shaft is machined on the inner wall of the hollow cylindrical profile blank wound by the amorphous iron alloy strip used as the rotor core, and selectively performs the following steps.
- the permanent magnet is a hollow cylinder. When the permanent magnet is magnetized to form a multi-pole on the circumferential surface, since the outer surface of the profile of the rotor core is cylindrical, the rotor core is directly embedded into the permanent magnet. Internal fixation, assembly of the rotor;
- the outer surface of the rotor core is opened with the same number of axial recesses adapted to the cross-sectional shape of each permanent magnet. a slot, in which each permanent magnet is embedded in these axial EI slots, and the rotor is assembled;
- an axial groove is formed on the outer surface of the rotor core to match the shape of the squirrel cage axial copper strip or aluminum strip, and the copper or aluminum strip of the squirrel cage Inlaid on the outer surface of the rotor core, and fixedly welded by copper or aluminum rings at both ends;
- stator is loaded into the casing and the rotor is set on the motor shaft to complete the production of the two components;
- the present invention accordingly provides a method of manufacturing a radial magnetic circuit motor having a slotless amorphous iron alloy, comprising the steps of:
- Stator fabrication The keyway for connecting the motor shaft to the inner surface of the stator core is machined, the sub-winding is wound, and then the shape and size required for the stator winding are formed by shaping; the stator winding: the outer cylindrical surface of the group The metal reinforcement sleeve is fixed; the stator winding is sleeved on the outer cylindrical surface of the stator core, the stator core and the motor shaft are fixedly connected by a key, and the motor support shaft is mounted with two bearings to complete the stator production;
- Rotor production The permanent magnet is made into an even number of strips or made into a hollow cylinder.
- the steel plate is rolled or directly used as a casing, and the inner wall of the casing is shaped to match the permanent magnet to be fixed. ;
- the permanent magnet is embedded in the inner wall of the casing to fix the rotor;
- the motor of the invention having the radial magnetic circuit of the slotless amorphous iron alloy and the manufacturing method thereof have the beneficial effects of:
- the amorphous magnetic alloy material is used as the radial magnetic circuit material of the motor stator, which effectively reduces the volume of the motor, reduces the loss and improves the efficiency.
- the stator adopts the toothless and grooveless design, eliminating the processing of the cogging. Difficulty and saving man-hours, greatly reducing the processing cost, eliminating the cogging effect of the motor and reducing the electromagnetic noise, improving the running performance of the motor;
- FIG. 1 is a schematic longitudinal sectional view showing the overall structure of a preferred embodiment of a motor having a radial magnetic circuit of a slotless amorphous iron alloy and a method of manufacturing the same;
- Figure 2 is a schematic longitudinal sectional view showing the structure of the rotor 3 of the preferred embodiment
- Figure 3 is a cross-sectional view showing the assembly of the rotor core 31 and the permanent magnet 32 of the preferred embodiment;
- Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
- Figure 5 is a schematic longitudinal sectional view of the rotor core 31 of the preferred embodiment
- Figure 6 is a left side view of Figure 5;
- Figure 7 is a schematic cross-sectional view showing the overall structure of the stator 2 of the preferred embodiment
- Figure 8 is a left side elevational cross-sectional view of Figure 7;
- Figure 9 is a schematic cross-sectional view of the stator core 21
- Figure 10 is a left side elevational cross-sectional view of Figure 9;
- Figure 11 is a longitudinal sectional view showing the structure of the first insulating bobbin 23;
- Figure 12 is a longitudinal sectional view showing the structure of the stator core 21 after bonding the two first insulating frames 23;
- Figure 13 is a longitudinal sectional view showing the structure of the second insulating frame 24;
- Figure 14 is a schematic longitudinal cross-sectional view showing the overall structure of an embodiment of the outer rotor motor of the present invention.
- the names of the labels in each figure are as follows:
- 1 is the casing
- 2 is the stator
- 3 is the rotor
- 4 is the end cover
- 5 is the air gap
- 6 is the motor shaft
- 7 is the bearing
- 8 is the snap ring
- 21 is the stator core
- 22 is a stator winding
- 23 is a first insulating bobbin
- 231 is a (circular) main body
- 232 is an annular radial flange
- 24 is a second insulating bobbin
- 25 is a metal reinforcing bush
- in the configuration of the rotor 3 31 is a rotor core
- 32 is a permanent magnet
- 311 is an axial groove
- 312 is a key groove
- 2' is the stator
- 3' is the outer rotor
- 5' is the air gap
- 6' is the motor support shaft
- 7' is the bearing
- in the structure of the stator 2' 2 is The stator core
- 22' is a stator winding
- 25' is a metal reinforcing sleeve
- in the structure of the rotor 3' 31' is a casing
- 32' is a permanent magnet
- 33' is a right end cover
- 34' is a left end cover.
- a motor having a slotless amorphous iron alloy radial magnetic circuit includes a casing 1, an end cover 4, a stator 2, a rotor 3, and a motor shaft 6; 4 is installed at the end of the casing 1 and together with the casing 1 to determine the installation position of the motor shaft 6, the stator 2 is fixed in the casing 1, the rotor 3 is fixed on the motor shaft 6 and arranged in the stator 2, and the stator There is a radial air gap 5 between the motor shaft 6 and its upper rotor 3 passing through the inner cavity of the stator 2, and is rotatably mounted on the mounting position determined by the casing 1 and the end cover 4, such as by means of two bearings 7
- the motor shaft 6 can be rotatably mounted on the mounting position determined by the casing 1 and the end cover 4; the stator 2 includes the
- stator winding 22 is directly fixed to the inner wall of the stator core 21, and the metal reinforcing bushing 25 is directly fixed to the inner wall of the stator winding 22.
- the inner wall of the stator core 21 is provided with a first insulating bobbin 23, and the main body 231 of the first insulating bobbin 23 is cylindrical.
- One end surface has an annular radial flange 232, and two identical first insulating frames 23 are respectively embedded with the ends of the stator core 21 from the ends of the stator core 21 with their unflanged ends, and the inner wall of the stator core 21
- the annular radial flanges 232 of the end faces of the two first insulating bobbins 23 are fixed to both ends of the inner cavity of the stator core 21.
- the second winding frame 24 having a circular shape in the inner cavity of the stator winding 22 is supported and fixed therein.
- the axial length of the second insulating frame 24 is the same as that of the stator winding 22; the inner wall and the metal of the second insulating frame 24 are The outer cylindrical surface of the reinforcing bushing 25 is fixed.
- the motor having the slotless amorphous iron alloy radial magnetic circuit is a brushless DC motor or an AC synchronous motor, including a DC or AC motor and a generator. It can also be an AC asynchronous motor. Referring to FIG. 1 and FIG.
- the rotor 3 of the present invention includes a rotor core 31 and a permanent magnet 32; the rotor core 31 may be formed by laminating a conventional material such as silicon steel; or according to the technical solution of the present invention,
- the rotor core 31 is a hollow columnar structure made of an amorphous iron alloy material, the radially outer surface of which is adapted to the permanent magnet 32, and the permanent magnet 32 is inlaid or sleeved on the outer surface of the rotor core 31; the rotor core A key groove 312 for coupling to the motor shaft 6 is formed in the inner wall of the opening 31.
- the permanent magnet 32 is a 4 female iron boron high magnetic energy alloy. Or it is strontium or barium ferrite.
- the permanent magnet 32 is a hollow cylinder and is magnetized to form a permanent magnet having a plurality of magnetic poles on the circumferential surface
- the outer surface of the profile blank of the rotor core 31 is cylindrical, its outer diameter and the permanent magnet
- the inner diameter of the circular shape is adapted to directly fix the permanent magnet to the rotor core 31.
- the outer surface of the rotor core 31 has the same number of cross-sectional shapes of the permanent magnets 32.
- the adapted axial grooves 311 are inlaid into the axial grooves 311 by the permanent magnets 32.
- the axial groove 311 is a dovetail groove, and correspondingly the permanent magnet 32 has a dovetail structure.
- the rotor 3 of the present invention when the present invention is implemented on an AC asynchronous motor, the rotor 3 of the present invention includes a rotor core 31 and a squirrel cage on its surface, and the rotor core 31 is fitted over the motor shaft 6, and the squirrel cage is fixed to The outer surface of the rotor core 31; the rotor core 31 may be formed by laminating a conventional material such as silicon steel; or, according to the technical solution of the present invention, the rotor core 31 is a hollow column made of an amorphous iron alloy material.
- a key groove 312 for coupling to the motor shaft 6 is also formed on the inner wall of the rotor core 31.
- a motor having a slotless amorphous iron alloy radial magnetic circuit includes a stator 2', an outer rotor 3', and a motor support shaft 6' for mounting;
- the rotor 3' is disposed outside the stator 2', and includes a casing 31', left and right end covers 34', 33' and permanent magnets 32'.
- the permanent magnets 32' are fixed to the inner wall of the casing 31', and the left and right end covers 34'33' is fixed to the left and right ends of the casing 31', and the outer rotor 3' is rotatably mounted on the motor support shaft 6'.
- the outer rotor 3' can be rotatably mounted by means of two bearings 7'.
- the stator 2' is fixed on the motor support shaft 6', including the stator core 21' and the stator winding 22';
- the stator core 21' is a hollow made of amorphous iron alloy material a columnar structure;
- the stator winding 22' is generally circular and fixed on the outer cylindrical surface of the stator core 21', and the radially outer surface of the stator winding 22' has a metal reinforcing sleeve 25', which is outside the metal reinforcing sleeve 25'.
- a cylindrical air gap 5' is formed between the cylindrical surface and the inner surface of the outer rotor 3'.
- the electrically conductive strands drawn from the stator windings 22' can be led out of the casing 31' along the upper surface grooves or the in-shaft passages of the motor support shaft 6' in the prior art.
- the permanent magnet 32' is inlaid on the inner surface of the casing 31' in an even strip shape, or is directly fixed to the inner surface of the casing 31' in a hollow cylindrical shape.
- the casing 3 is rolled up with a steel plate or directly made of steel.
- the "fixing" is adhesively bonded using an adhesive having a temperature resistance not lower than the temperature resistance level of the motor insulation class. Accordingly, the present invention also provides a method of manufacturing a radial magnetic circuit motor having a slotless amorphous iron alloy, comprising the following steps:
- Stator 2 fabrication The sub-winding 22 is first wound and then shaped to form the desired shape and size of the stator winding 22; and one of the following steps is selectively performed:
- the second insulating frame 24 is fixed to the inner cylindrical surface of the stator winding 22; then the metal reinforcing bushing 25 is fixed to the inner wall of the second insulating frame 24;
- stator winding 22 does not use the second insulating bobbin 24, the inner cylindrical surface of the stator winding 22 is directly fixed to the metal reinforcing bushing 25;
- first insulating bobbin 23 is included in the stator core 21, the first insulating bobbin 23 is fixed to the inner wall of the stator core 21, and the outer cylindrical surface of the stator winding 22 is fixed to the inner wall of the first insulating bobbin 23 to complete the stator fabrication. ;
- stator winding 22 is directly fixed on the inner wall of the stator core 21 to complete the stator fabrication
- a key groove 312 coupled to the motor shaft 6 is machined in the inner wall of the hollow cylindrical profile blank wound by the amorphous iron alloy strip used as the rotor core 31, and the following steps are selectively performed.
- the permanent magnet 32 is a hollow cylindrical shape and is magnetized to form a permanent magnet having a plurality of magnetic poles on the circumferential surface, since the outer surface of the profile blank of the rotor core 31 is cylindrical, the rotor core 31 is directly embedded.
- the permanent magnet 32 is fixed in a cylinder and assembled with a rotor; c2, when the permanent magnet 32 is a strip-shaped body of an even-numbered tile-like section or a strip-shaped body of a "V"-shaped section, the outer surface of the rotor core 31 is opened
- the axial grooves 311 are matched with the cross-sectional shapes of the permanent magnets 32, and the permanent magnets 32 are embedded in the axial grooves 311 to fix the rotor;
- a method for manufacturing a radial magnetic circuit motor having a slotless amorphous iron alloy includes the following steps:
- the sub-winding 22 is formed by using a self-adhesive enameled wire on the winding mold, and then shaped by a shaping die and heated and shaped according to the self-adhesive enameled wire heating standard, thereby obtaining the circular shape and the required shape of the stator winding 22 and Dimensions; in the shaping die, the inner cylindrical surface of the stator winding 22 and the metal reinforcing bushing 25 are adhesively cured by adhesive bonding; then the outer cylindrical surface of the stator winding 22 is bonded with the inner cylindrical surface of the stator core 21 by an adhesive, and then The stator is produced by baking and setting at a temperature of 60 - 100 degrees Celsius and a time of 2 to 3 hours;
- the inner wall of the hollow cylindrical profile wound by the amorphous iron alloy strip used as the rotor core 31 is machined with a key groove 312 coupled to the motor shaft 6, and selectively performs the following steps.
- the permanent magnet 32 is a hollow cylindrical shape, and is magnetized to form a permanent magnet having a plurality of magnetic poles on the circumferential surface. Since the outer surface of the profile blank of the rotor core 31 is cylindrical, the outer diameter thereof is adapted to the inner diameter of the permanent magnet.
- the rotor core 31 is directly embedded in the permanent magnet cylinder to be bonded and solidified, and the rotor is assembled, and baked at a temperature of 60-100 degrees Celsius for 2 to 3 hours;
- the outer surface of the rotor core 31 is opened with the same number of axial grooves adapted to the cross-sectional shape of the permanent magnet 32. 311, the permanent magnets 32 are embedded in the axial grooves 311, the rotor is assembled, and the rotor is baked and set at a temperature of 60 - 100 degrees Celsius for 2 - 3 hours;
- an axial groove is formed on the outer surface of the rotor core 31 to match the shape of the squirrel cage axial copper strip or aluminum strip, and the squirrel cage copper strip or aluminum The strip is embedded on the outer surface of the rotor core 31, and is fixedly welded by copper or aluminum rings at both ends, and the rotor is assembled;
- stator 2 is loaded into the casing 1 and the rotor 3 is set on the motor shaft 6 to complete the production of the two components;
- a method for manufacturing a radial magnetic circuit motor having a slotless amorphous iron alloy includes the following steps:
- the sub-winding 22 is formed by using a self-adhesive enamelled wire on the winding mold, and then shaped by a shaping die and heated and shaped according to the self-adhesive enameled wire heating standard to obtain the cylindrical shape required for the stator winding 22 and Size; then the second insulating skeleton 24 is adhered with an adhesive in the shaping mold
- the cylindrical surface is solidified, and then the metal reinforcing bushing 25 and the inner wall of the second insulating frame 24 are bonded and cured by an adhesive in the shaping die, and then two identical first insulating frames 23 are formed.
- the ends of the stator core 21 are embedded and mutually abutted from one end of the stator core 21, and the inner wall of the stator core 21 is adhesively solidified by an adhesive.
- the annular projections of the end faces of the two first insulating frames 23 are respectively formed.
- stator winding assembly 22, 24, 25 made according to the above steps is adhesively bonded to the inner wall of the stator core 21 by the first insulating frame 23
- the entire stator 2 is placed at a temperature of 60 ⁇ 100 degrees Celsius, and the time is 2 - 3 hours, the baking is finalized to complete the stator production;
- a key groove 312 coupled to the motor shaft 6 is machined on the inner wall of the hollow cylindrical profile material wound by the amorphous iron alloy strip used as the rotor core 31, and one of the following steps is selectively performed :
- the permanent magnet 32 is a hollow cylindrical shape and is magnetized to form a permanent magnet having a plurality of magnetic poles on a cylindrical surface
- the outer surface of the profile blank of the rotor core 31 is cylindrical, its outer diameter and the inner diameter of the permanent magnet Adapting, the rotor core 31 is directly embedded in the permanent magnet body to be bonded and solidified, the rotor is assembled, and the rotor is baked and set at a temperature of 60 to 100 degrees Celsius for 2 to 3 hours;
- the outer surface of the rotor core 31 is opened with the same number of axial grooves adapted to the cross-sectional shape of the permanent magnet 32. 311, the permanent magnets 32 are embedded in the axial grooves 311 to be bonded and solidified, the rotor is assembled, and the rotor is baked and set at a temperature of 60 to 100 degrees Celsius for 2 to 3 hours;
- the present invention accordingly provides a method of manufacturing a radial magnetic external rotor motor having a slotless amorphous iron alloy, comprising the steps of:
- Stator fabrication a keyway for coupling the motor shaft to the inner surface of the stator core 21', winding the sub-winding 22', and then shaping to form the shape and size required for the stator winding 22';
- the outer cylindrical surface of the 22' is fixed to the metal reinforcing sleeve 25';
- the stator winding 22' is sleeved on the outer cylindrical surface of the stator core 21', and the stator core 21' and the motor shaft 6' are fixed by a key joint, and
- the motor support shaft 6' is equipped with two bearings 7' to complete the stator production;
- the permanent magnet 32' is made into an even number of strips or made into a hollow cylindrical shape.
- the steel plate is rolled or directly used as the casing 31', and the permanent magnet to be fixed is machined on the inner wall of the casing 3.
- 32' matching shape; the permanent magnet 32' is embedded in the inner wall of the casing 31' to be fixed, and the rotor is assembled;
- the amorphous iron alloy material used for the stator core 21 and the rotor core 31 is produced by using a nano-iron-based amorphous iron alloy strip produced by China Antai Co., Ltd. to produce profiles and profile blanks.
- the adhesion between the components in the stator 2 and the adhesive used between the rotor core 31 and the permanent magnet 32 are temperature-resistant not lower than the insulation level of the motor.
- Adhesive The embodiments of the present invention use the resin of ESP110 produced by Henkel Corporation and the high-strength, high-temperature resistant 200 degree, two-component 3034A and 3034B epoxy resin produced by Langbowan, and the bonding operation is related to the prior art. Adhesive requirements are carried out.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
Claims
Priority Applications (3)
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JP2013520940A JP5507759B2 (ja) | 2010-07-26 | 2010-12-06 | 径方向に磁気回路を有するスロットレス非結晶鉄合金電気装置及びその製造方法 |
EP10855153.2A EP2587630B1 (en) | 2010-07-26 | 2010-12-06 | Slotless amorphous ferroalloy motor with radial magnetic circuit and manufacturing method thereof |
US13/811,790 US20140319951A1 (en) | 2010-07-26 | 2010-12-06 | Slotless amorphous ferroalloy electric machine with radial magnetic circuit and its manufacturing method |
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CN201010237537.1 | 2010-07-26 | ||
CN2010102375371A CN101976895B (zh) | 2010-07-26 | 2010-07-26 | 拥有无槽非晶铁合金径向磁路的电机及其制造方法 |
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WO2012012925A1 true WO2012012925A1 (zh) | 2012-02-02 |
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PCT/CN2010/001969 WO2012012925A1 (zh) | 2010-07-26 | 2010-12-06 | 一种拥有径向磁路的无槽非晶铁合金电机及其制造方法 |
Country Status (5)
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US (1) | US20140319951A1 (zh) |
EP (1) | EP2587630B1 (zh) |
JP (1) | JP5507759B2 (zh) |
CN (1) | CN101976895B (zh) |
WO (1) | WO2012012925A1 (zh) |
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- 2010-12-06 WO PCT/CN2010/001969 patent/WO2012012925A1/zh active Application Filing
- 2010-12-06 EP EP10855153.2A patent/EP2587630B1/en not_active Not-in-force
- 2010-12-06 US US13/811,790 patent/US20140319951A1/en not_active Abandoned
- 2010-12-06 JP JP2013520940A patent/JP5507759B2/ja not_active Expired - Fee Related
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CN111478474A (zh) * | 2020-06-01 | 2020-07-31 | 苏州英磁新能源科技有限公司 | 一种用于径向筒式永磁同步电机的电机转子及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2013532939A (ja) | 2013-08-19 |
EP2587630A4 (en) | 2014-05-07 |
EP2587630A1 (en) | 2013-05-01 |
CN101976895B (zh) | 2012-09-05 |
CN101976895A (zh) | 2011-02-16 |
US20140319951A1 (en) | 2014-10-30 |
JP5507759B2 (ja) | 2014-05-28 |
EP2587630B1 (en) | 2016-07-27 |
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