CN104659941B - The manufacture method of rotor, motor and rotor - Google Patents
The manufacture method of rotor, motor and rotor Download PDFInfo
- Publication number
- CN104659941B CN104659941B CN201410544823.0A CN201410544823A CN104659941B CN 104659941 B CN104659941 B CN 104659941B CN 201410544823 A CN201410544823 A CN 201410544823A CN 104659941 B CN104659941 B CN 104659941B
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- China
- Prior art keywords
- band
- permanent magnet
- outer peripheral
- peripheral face
- rotor
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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
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Abstract
The present invention provides the manufacture method of a kind of rotor, motor and rotor, and permanent magnet can be more securely retained at rotary shaft by rotor by the band wound on the periphery of multiple permanent magnets, and can suppress the vibration from the part floated between permanent magnet of band.In rotor (40), multiple permanent magnets (42) that outer peripheral face (422) is in convex surface are fixed with the outer peripheral face (45f) of the rotor core (45) of rotary shaft (49).In the radial outside winding band (47) of permanent magnet (42), and the outer peripheral face (422) of multiple permanent magnets (42) is fixed on (47) by bonding agent.Between two adjacent permanent magnets (42), the position of the imaginary line (P) more circumscribed than with the outer peripheral face (422) of two permanent magnets (42) in the inner part is partly into (47).Therefore, between two permanent magnets (42), the part floated from permanent magnet (42) of band (47) is shorter.
Description
Technical field
The system of the rotor, motor and rotor of multiple permanent magnets is fixed with the present invention relates to a kind of outer peripheral face in rotary shaft
Make method.
Background technology
In the rotor for motor and generator etc., multiple permanent magnets are fixed with the outer peripheral face of rotary shaft.Also, it is
Realize the purpose for preventing that permanent magnet from dispersing, it has been proposed that it is a kind of in the way of surrounding permanent magnet around rotor annulus
Wind band shape, and band is bonded and fixed to the technology of the outer peripheral face of permanent magnet (with reference to patent document 1).
The Japanese Unexamined Patent Publication 2013-9458 publications of patent document 1
As shown in the structure of patent document 1, in order to which tape wrapping must be made to the outer peripheral face of permanent magnet with contiguity, applying on tape
Added with the winding that band is carried out in the state of tension force.Therefore, between two adjacent permanent magnets, due to band edge and two permanent magnets
The circumscribed imaginary line extension of outer peripheral face, therefore between two permanent magnets, the part floated from permanent magnet of band is longer.Cause
This, the part floated from permanent magnet that there is band vibrates, the problems such as causing to contact between noise and band and stator.
The content of the invention
In view of problem above, problem of the invention, which is to provide, a kind of can suppress the band wound on the periphery of multiple permanent magnets
The rotor of the vibration from the part floated between permanent magnet, the manufacture method of motor and rotor.
In order to solve the above problems, rotor involved in the present invention is characterised by, the rotor has：Rotary shaft；It is many
Individual permanent magnet, circumferential array of the multiple permanent magnet along the rotary shaft and the outer peripheral face for being fixed on the rotary shaft；And
Band, it and is fixed on by bonding agent the outer peripheral face of the multiple permanent magnet wound on the radial outside of the multiple permanent magnet,
It is described when from the axis direction of the rotary shaft between adjacent two permanent magnet in the multiple permanent magnet
Band is partly into the position of the imaginary line more circumscribed than with the outer peripheral face of described two permanent magnets in the inner part.
In the present invention, band is wound in the radial outside of multiple permanent magnets, and band is fixed on multiple permanent magnetism by bonding agent
The outer peripheral face of iron.Therefore, even if permanent magnet is damaged or permanent magnet is peeled off from rotary shaft, dispersing for permanent magnet can also be suppressed.And
And, between two adjacent permanent magnets, the vacation more circumscribed than with the outer peripheral face of two permanent magnets is partly into due to band
Think the position of straight line in the inner part, therefore between two permanent magnets, the part floated from permanent magnet of band is shorter.Therefore, when turn
During son rotation, because the part floated from permanent magnet of band is difficult vibration, therefore, it is possible between noise suppression and band and stator
Contact etc..
In the present invention, it is preferred to outer peripheral face winding multi-turn of the band along the multiple permanent magnet, and from the rotation
During the axis direction observation of axle, the position at least entered from the first lap of inner side number than the imaginary line in the inner part of the band
Put.According to the structure, it can more reliably suppress dispersing for permanent magnet by band.
In the present invention, it is preferred to when from the axis direction of the rotary shaft, the band at least from inner side number
First lap and the second circle enter the position than the imaginary line in the inner part., can be by band more according to the structure
It is reliably suppressed dispersing for permanent magnet.
In the present invention, it is preferred between described two permanent magnets, base material in the band is formed from described two permanent magnetism
The glued oxidant layer filling of at least a portion in the gap at part that the outer peripheral face of iron floats.According to the structure, due to band with
Permanent magnetism iron phase is bonded, therefore even in band at the part that permanent magnet somewhat floats, also can more reliably be prevented by band
Permanent magnet disperses.
Now, preferably in the gap, when from the axis direction of the rotary shaft, the boundary of the bond layer
Face is in the concave curved surface being recessed towards the inside in the gap.According to the structure, the contact between the base material and bond layer of band
Contact area between area and permanent magnet and bond layer is larger, therefore the part somewhat floated from permanent magnet even in band
Place, band is also reliably be bonded with permanent magnet.Therefore, it is possible to more reliably suppress dispersing for permanent magnet by band.
In the present invention, it is preferred to which the band is to have bonding agent band, the bonding agent what the base material was applied with bonding agent
Layer is made up of the part oozed out from the base material in the bonding agent.According to the structure, after winding band, it is not necessary to apply
The process of bonding agent.
In the present invention, it is preferred to which the glass fabric that the base material is made into by glass fibre is constituted.According to the structure, energy
Enough pass through relatively thin band fixing permanent magnet.As long as also, be glass fabric, then time dependent deterioration is also smaller.
In the present invention, it is preferred to when from the axis direction of the rotary shaft, the outer peripheral face of the multiple permanent magnet
In convex surface.According to the structure, the generation of slot effect can be suppressed.Also, it is in particularly convex in the outer peripheral face of permanent magnet
During curved surface, band easily becomes longer from the part that permanent magnet floats between two permanent magnets, but according to the present invention, even in forever
When the outer peripheral face of magnet is in convex surface, also it is capable of floating for shortened belt.
In the present invention, it is preferred to the size of the axis direction of the band and the size of the axis direction of the multiple permanent magnet
It is identical.According to the structure, it can more reliably suppress dispersing for permanent magnet by band.
In the present invention, it is preferred to which the band is impregnated with heat cured epoxies bonding agent in the base material.According to the knot
Structure, after winding band, it is not necessary to the process of adhesive-applying.
In the present invention, it is preferred to which the band is fastened at least to by the bonding agent in the outer peripheral face of the multiple permanent magnet
The top positioned at most radial outside.According to the structure, it can more reliably suppress dispersing for permanent magnet by band.
In the present invention, it is preferred to which a part for the band is even in the vacation more circumscribed than with the outer peripheral face of described two permanent magnets
Think that the position of straight line in the inner part is fixed on the outer peripheral face of described two permanent magnets also by the bonding agent.According to the structure,
Because band is less from the part that permanent magnet floats, therefore vibration is difficult, and can be connect between noise suppression and band and stator
Touch.
Motor with the rotor for having used the present invention has the stator of the tubular opposed with the outer peripheral face of the rotor.
The manufacture method of rotor involved in the present invention has following process：By multiple permanent magnetism in the way of circumferentially arranging
Permanent magnet fixed work order of the ferropexy in the outer peripheral face of rotary shaft；And the multiple permanent magnet radial outside winding band and
The band is adhesively fixed on to the tape wrapping process of the outer peripheral face of the multiple permanent magnet, in the tape wrapping process, by institute
Tape wrapping is stated to after the radial outside of the multiple permanent magnet, adjacent two permanent magnet in the multiple permanent magnet it
Between, press the band to radially inner side.
In the present invention, because the radial outside in multiple permanent magnets winds band, and band is adhesively fixed on multiple permanent magnets
Outer peripheral face, therefore even if permanent magnet is damaged or permanent magnet is peeled off from rotary shaft and can also suppress dispersing for permanent magnet.Also, volume
After band, between two adjacent permanent magnets, due to radially inner side pressing belt, thus two adjacent permanent magnets it
Between, band is partly into the position of the imaginary line more circumscribed than with the outer peripheral face of two permanent magnets in the inner part.Therefore, two
Between individual permanent magnet, the part floated from permanent magnet of band is shorter.Therefore, when rotor rotates, because band is floating from permanent magnet
The part risen is difficult vibration, therefore, it is possible to the generation of the contact between noise suppression and band and stator etc..
In the present invention, it is preferred to wind band described in multi-turn along the outer peripheral face of the multiple permanent magnet.
In the present invention, it is preferred to which the band is to have bonding agent band what base material was applied with bonding agent.
Invention effect
In the present invention, band is wound in the radial outside of multiple permanent magnets, and band is fixed on multiple permanent magnetism by bonding agent
The outer peripheral face of iron.Therefore, even if permanent magnet is damaged or permanent magnet is peeled off from rotary shaft, dispersing for permanent magnet can also be suppressed.And
And, between two adjacent permanent magnets, because a part for band is embedded into the vacation more circumscribed than with the outer peripheral face of two permanent magnets
Think the position of straight line in the inner part, therefore between two permanent magnets, the part floated from permanent magnet of band is shorter.Therefore, turning
During son rotation, because the part floated from permanent magnet of band is difficult vibration, therefore, it is possible between noise suppression and band and stator
The generation of contact etc..
Brief description of the drawings
Fig. 1 (a), Fig. 1 (b) are the explanation figures of the motor using the present invention.
Fig. 2 (a), Fig. 2 (b) are the explanation figures using the stator of motor of the present invention etc..
Fig. 3 (a), Fig. 3 (b) are the explanation figures of the rotor of the motor using the present invention.
Fig. 4 (a), Fig. 4 (b) are the top views of the rotor of the motor using the present invention.
Fig. 5 (a), Fig. 5 (b) are the explanation figures of a part for the rotor for the motor that amplification is shown with the present invention.
Fig. 6 is the explanation figure for the manufacture method for being shown with the rotor of the present invention.
Fig. 7 is the explanation figure of the rotor involved by the other embodiment of the present invention.
(symbol description)
1 motor
30 stators
33 driving coils
40 rotors
41 axis bodies
42 permanent magnets
45 rotor cores
The outer peripheral face of 45f rotor cores
47 bands
48 gaps
49 rotary shafts
The outer peripheral face of 422 permanent magnets
The base material of 470 bands
475 bond layers
The interface of 475a bond layers
The circumscribed imaginary line of the outer peripheral face of P and two permanent magnet
Embodiment
Hereinafter, referring to the drawings to being illustrated using the rotor and motor of the present invention.In the following description, with rotation
The side that rotary shaft in the direction of axis (motor axis L) extension of axle is protruded is outlet side L1, with what is protruded with rotary shaft
The opposite side in side (opposite side) illustrates to export opposite side L2.
(overall structure of motor)
Fig. 1 (a), Fig. 1 (b) are the explanation figures of the motor 1 using the present invention, and Fig. 1 (a) is the horse observed from outlet side L1
Up to 1 stereogram, Fig. 1 (b) is the sectional side elevation of motor 1.
Motor 1 shown in Fig. 1 (a), Fig. 1 (b) is permanent magnet type synchronous motor, the iron core retainer 10 with square tube shape, is matched somebody with somebody
Put in the stator 30 of the tubular of the inner side of iron core retainer 10, configuration in the rotor 40 of the inner side of stator 30 and relative to fixed
Son 30 is in the rotating speed for exporting opposite side L2 detections rotor 40 and the encoder 60 of angle position.Consolidate in the side of iron core retainer 10
Surely there is connector retainer 101, the connector 102 to the power supply of stator 30 is fixed with connector retainer 101.
The flange 11 of tabular is fixed with the outlet side L1 of iron core retainer 10, work is fixed with by the ring portion 14 of flange 11
For the outlet side L1 of ball bearing bearing 13.Retainer 15 is fixed with the opposite side L2 of the output of iron core retainer 10,
Retainer 15 is fixed with the encoder outer cover 16 of covering encoder 60.It is fixed with the side of encoder outer cover 16 for defeated
Go out the connector 161 of the testing result of encoder 60.The opposite side L2 of output as ball bearing is fixed with retainer 15
Bearing 17, rotor 40 is supported to rotate by bearing 13,17.
Encoder 60 has the shaft end for the opposite side L2 of output that rotary shaft 49 is arranged on by magnet retainer 61
Sensor is with magnet 62 and the sensor base plate 64 opposed on motor axis L with sensor magnet 62, and in sensor
Substrate 64 is formed with Magnetosensing element (not shown).Sensor base plate 64 is fixed on the opposite side of output for being installed on retainer 15
The substrate holder 65 of L2 end face.
(structure of stator 30)
Fig. 2 (a), Fig. 2 (b) are the explanation figures of the grade of stator 30 of the motor 1 using the present invention, and Fig. 2 (a) is to match somebody with somebody rotor 40
The stereogram in the state of the inner side of stator 30 is put, Fig. 2 (b) is in the state of rotor 40 is extracted from the inner side of stator 30
Stereogram.In fig. 2, the diagram of driving coil is omitted.
As shown in Fig. 2 (a), Fig. 2 (b), stator 30 includes equiangularly interval with to prominent many on the inside of radial direction
The driving of the stator core 32 of the ring-type of individual salient pole 31 and each phase by insulating element 38,39 wound on each salient pole 31
Coil 33 (reference picture 1 (b)).Stator core 32 is circumferentially to be divided into multiple segmentation iron cores, and many by what is circumferentially configured
Individual lamination 320 is circumferentially arranged and formed.Here, multiple laminations 320 have salient pole 31 respectively, in multiple 320 points of laminations
Insulating element 38,39 is not installed.
(structure of rotor 40)
Fig. 3 (a), Fig. 3 (b) are the explanation figures of the rotor 40 of the motor 1 using the present invention, and Fig. 3 (a) is the solid of rotor 40
Figure, Fig. 3 (b) is the exploded view of rotor 40.Fig. 4 (a), Fig. 4 (b) are the top view of the rotor 40 of the motor 1 using the present invention, figure
4 (a) is the top view before band to be arranged on to rotor 40, and Fig. 4 (b) is that band is arranged on to the top view after rotor 40.In addition,
In Fig. 3 (a), Fig. 3 (b), diagram slightly is saved.And in Fig. 3 (b), one in multiple permanent magnets 42 is only shown.
As shown in Fig. 1 (a), Fig. 1 (b), Fig. 2 (a), Fig. 2 (b), Fig. 3 (a), Fig. 3 (b) and Fig. 4 (a), Fig. 4 (b), rotor
40 permanent magnets 42 with the rotary shaft 49 extended along motor axis L, the outer peripheral face for being fixed on the rotary shaft 49.The rotor 40
To be configured between the salient pole 31 of permanent magnet 42 and stator core 32 across the state in gap slightly.Also, rotary shaft 49 is defeated
The end for going out side L1 is further prominent to outlet side L1 from flange 11.Also, rotor 40 by rotary shaft 49 by bearing 13,17
Hold and can be rotated in the inner side of stator 30.
As shown in Fig. 2 (a), Fig. 2 (b), Fig. 3 (a), Fig. 3 (b) and Fig. 4 (a), Fig. 4 (b), rotary shaft 49 has along motor
The axis body 41 of axis L extensions and the rotor core 45 being fixed on around axis body 41.The axis body 41 on motor axis L directions
Outside dimension changed at multiple positions, large diameter portion 41a insertion rotor core 45 centre bore 455 in.Axis body 41 exists
There is the big flange part 41b in footpath of the footpath than large diameter portion 41a, rotor iron in the adjacent positions of outlet side L1 with large diameter portion 41a
Core 45 abuts and determined outlet side L1 position with flange part 41b.
In the inner peripheral surface 45a of rotor core 45, the key for being radially oriented outside depression is formed with a circumferential position
Groove 450.Also, a circumferential position for the outer peripheral face in the large diameter portion 41a of axis body 41 is formed with along motor axis L directions
The recess 410 of extension.The key 44 of the tabular extended along motor axis L directions is embedded with recess 410, in key 44, from axis body
41 large diameter portion 41a outer peripheral face is partially embedded in the keyway 450 of rotor core 45 towards radial direction is protruding outside.Such as
This one, rotation of the rotor core 45 relative to axis body 41 is limited.In the manner, keyway 450 is in rotor core 45
Extend in side face 45a along the entirety in motor axis L directions, and reach the outlet side L1 of rotor core 45 end face 45c and defeated
Go out opposite side L2 end face 45d.
Permanent magnet 42 is circumferentially configured with many relative to the outer peripheral face (the outer peripheral face 45f of rotor core 45) of rotary shaft 49
It is individual, and it is adhesively fixed on the outer peripheral face (the outer peripheral face 45f of rotor core 45) of rotary shaft 49.Permanent magnet 42 is by motor axis L side
To the size identical flat thin magnet in motor axis L directions of size and rotor core 45 constitute.
The outer peripheral face 45f for being adhesively fixed on rotor core 45 of permanent magnet 42 inner surface 421 is in plane, and positioned at radially
The outer peripheral face 422 in outside is in convex surface.In the present embodiment, the outer peripheral face 422 of permanent magnet 42 is in the top of convex surface
Circumferential symmetrical shape centered on 422a.It is formed with the outer peripheral face 45f of rotor core 45 circumferential multiple positions and supplies permanent magnetism
The planar portions 451 that the inner surface 421 of iron 42 is adhesively fixed, and be formed between adjacent planar portions 451 and to be radially oriented outside
The teat 452 for protruding and being located between adjacent permanent magnet 42.Therefore, the circumferential two ends of permanent magnet 42 are abutted with teat 452
And be positioned.
(structure of band 47)
Fig. 5 (a), Fig. 5 (b) are the explanation figure of a part for the rotor 40 for the motor 1 that amplification is shown with the present invention, Fig. 5
(a) be amplification show to wind and be adhesively fixed in the outside of permanent magnet 42 band 47 appearance top view, Fig. 5 (b) is further
Amplification shows the top view between two adjacent permanent magnets 42.
As shown in Fig. 2 (b), Fig. 4 (b) and Fig. 5 (a), Fig. 5 (b), in the rotor 40 of the manner, in multiple permanent magnets
42 radial outside is wound with band 47, and band 47 is fixed on the outer peripheral face 422 of multiple permanent magnets 42 by bonding agent.Even if band 47 is
Centrifugal force when being rotated due to rotor 40 and cause permanent magnet 42 damaged or permanent magnet 42 is peeled off from rotary shaft 49 and can also prevented
The part that permanent magnet 42 disperses.
In the manner, size (width dimensions) and rotor core 45 and the permanent magnet 42 in the motor axis L directions of band 47
Motor axis L directions size it is identical.In the manner, band 47 is to have bonding agent band what base material 470 was applied with bonding agent,
And by around multiple permanent magnets 42 wind band 47 after solidify bonding agent, band 47 by be present in base material 470 with forever
The bond layer (not shown) and the bond layer being present between base material 470 and permanent magnet 42 at the equitant position of magnet 42
475 (reference picture 5 (a), Fig. 5 (b)) and the outer peripheral face 422 for being adhesively fixed on permanent magnet 42.
More specifically, band 47 is that the base material 470 constituted in the glass fabric being made into by glass fibre impregnates thermosetting
Epoxies bonding agent prepreg band, around multiple permanent magnets 42 after winding band 47, by making prepreg
Heat cure, band 47 is by being present in the bond layer (not shown) at the position overlapping with permanent magnet 42 of base material 470 and being present in
Bond layer 475 between base material 470 and permanent magnet 42 and the outer peripheral face 422 for being adhesively fixed on permanent magnet 42.
Here, between adjacent two permanent magnet 42 in multiple permanent magnets 42, from the axis direction (horse of rotary shaft 49
Up to axis L directions) observation when band 47 be partly into the imaginary line more circumscribed than with the outer peripheral face 422 of two permanent magnets 42
P (reference picture 5 (a), Fig. 5 (b)) leans on the position of radially inner side.
Therefore, as shown in Fig. 5 (b), band 47 is located at most radial outside in the outer peripheral face 422 (convex surface) of permanent magnet 42
Top 422a be seamlessly bonded in the outer peripheral face 422 of permanent magnet 42, and even in than the outer peripheral face with two permanent magnets 42
422 circumscribed imaginary line P lean on the position of radially inner side, the gapless of outer peripheral face 422 of the part of band 47 also with permanent magnet 42
Ground is bonded.Also, in the position that radially inner side is leaned on than imaginary line P, because a part for band 47 is from the outer peripheral face of permanent magnet 42
422 float, therefore when from the axis direction of rotary shaft 49 (motor axis L directions), in the base material 470 and permanent magnetism of band 47
Between the outer peripheral face 422 of iron 42 produce gap 48, but the gap 48 at least a portion by the bonding by being oozed out from base material 470
The bond layer 475 of agent solidification is filled.Therefore, even in the part for being formed with gap 48, the base material 470 and permanent magnetism of band 47
The outer peripheral face 422 of iron 42 is fixed also by bond layer 475.
Also, due to bonding agent before curing in the state of have to base material 470 and the both of which of permanent magnet 42 it is affine
Property, therefore the interface 475a of the bond layer 475 in the gap 48 is in the inside (outer peripheral face of permanent magnet 42 towards gap 48
422 top 422a sides) depression concave curved surface.That is, due to bonding agent before curing in the state of to being made up of glass fabric
Base material 470 and permanent magnet 42 there is enough wettables, therefore due to the capillarity in gap 48, positioned at gap 48
Bond layer 475 interface 475a be in towards gap 48 the inside (the top 422a sides of the outer peripheral face 422 of permanent magnet 42) it is recessed
Sunken concave curved surface, and solidify in this condition.
(manufacture method of rotor 40)
Fig. 6 is the explanation figure for the manufacture method for being shown with the rotor 40 of the present invention.Manufacture reference picture 5 (a), Fig. 5 (b) etc.
During the rotor 40 illustrated, permanent magnet 42 is adhesively fixed on rotary shaft in permanent magnet fixed work order as shown in Figure 6 first
On each of multiple planar portions 451 of 49 outer peripheral face (the outer peripheral face 45f of rotor core 45).
Next, in tape wrapping process, after the radial outside of multiple permanent magnets 42, being added by band 47
Heat, and band 47 is adhesively fixed on to the outer peripheral face of multiple permanent magnets 42.In the tape wrapping process, not apply to band 47
Compared with hightension mode wound band 47 after, as shown by arrow R, by instrument (not shown) etc., in multiple permanent magnets 42
Adjacent two permanent magnet 42 between solidify bonding agent to radially inner side pressing belt 47, afterwards, heating tape 47.Its result
Be, as illustrated by reference picture 5 (a), Fig. 5 (b), in adjacent two permanent magnet 42 in multiple permanent magnets 42 it
Between, band 47 is partly into the imaginary line P more circumscribed than with the outer peripheral face 422 of two permanent magnets 42 (reference picture 5 (a), figure
5 (b)) by the position of radially inner side.In addition, in the manner, because band 47 is the glass fabric to being made into by glass fibre
The base material 470 of composition impregnates the band of the prepreg of heat cured epoxies bonding agent, therefore in pressing belt 47, in advance in band
47 covering peeling papers.The peeling paper is removed after bonding agent solidification.
(main efficacy results of the manner)
Such as explanation made above, in the manner, band 47 is wound in the radial outside of multiple permanent magnets 42, band 47 passes through viscous
Connect the outer peripheral face 422 that agent is fixed on multiple permanent magnets 42.Therefore, even in permanent magnet 42 is damaged or permanent magnet 42 is from rotary shaft 49
In the case of stripping, it can also suppress dispersing for permanent magnet 42.Also, between two adjacent permanent magnets 42, due to band 47
Be partly into the positions of the imaginary line P more circumscribed than with the outer peripheral face 422 of two permanent magnets 42 in the inner part, therefore two
Between individual permanent magnet 42, the part floated from permanent magnet 42 of band 47 is shorter.
Especially since in order to suppress to produce cogging torque, the outer peripheral face 422 of permanent magnet 42 is in convex surface, therefore two
Band 47 easily becomes longer from the part that permanent magnet 42 floats between individual permanent magnet 42, but according to the manner, even in permanent magnet
42 outer peripheral face 422 be in convex surface when, can also make band 47 the part floated from the outer peripheral face 422 of permanent magnet 42 become compared with
It is short.
Therefore, it is possible to pass through more reliably fixing permanent magnet 42 of band 47.Therefore, produced even in end of permanent magnet 42 etc.
It is raw damaged, also dispersing for permanent magnet 42 can be suppressed by band 47.Also, the part floated from permanent magnet 42 due to band 47 compared with
It is short, therefore when rotor 40 rotates, the part floated from permanent magnet 42 of band 47 is difficult vibration.Therefore, it is possible to noise suppression and
With contact between 47 and stator 30 etc..
Also, the part generation gap 48 floated even in the base material 470 of band 47 from the outer peripheral face 422 of permanent magnet 42,
At least a portion of gap 48 also can glued oxidant layer 475 fill.Therefore, even in band 47 base material 470 from the outer of permanent magnet 42
The part that side face 422 floats, can more reliably be suppressed forever because band 47 is mutually be bonded with permanent magnet 42, therefore also by band 47
Magnet 42 disperses.Also, in gap 48, because the interface 475a of bond layer 475 is in be recessed towards the inside in gap 48
Concave curved surface, therefore contact area and permanent magnet 42 and bond layer between the base material 470 and bond layer 475 of band 47
475 contact area is larger.Therefore, the part slightly floated even in band 47 from permanent magnet 42, band 47 also can with permanent magnet 42
Reliably mutually it is bonded.Therefore, it is possible to be reliably suppressed dispersing for permanent magnet 42 by band 47.
Also, band 47 is to have bonding agent band what base material 470 was applied with bonding agent, and bond layer 475 is in bonding agent
The part oozed out from base material 470 is constituted.Therefore, after winding band 47, it is not necessary to the process of adhesive-applying.
Also, base material 470 is constituted due to the glass fabric being made into by glass fibre, therefore, it is possible to pass through relatively thin band 47
Fixing permanent magnet 42.As long as also, glass fabric, time dependent deteriorates smaller.
(other embodiment)
Fig. 7 is the explanation figure of the rotor 40 involved by the other embodiment of the present invention.In the above-described embodiment, illustrate
Winding one encloses the situation of band 47, but as shown in fig. 7, it is preferred that band 47 is wound into multi-turn, for example, winds two and enclose.According to the knot
Structure, can pass through more reliably fixing permanent magnet 42 of band 47.Now, at least in from the first lap of radially inner side number with 47a,
The positions of the imaginary line P more circumscribed than with the outer peripheral face 422 of two permanent magnets 42 in the inner part are partly into 47a i.e.
Can.
Also, as shown in fig. 7, it is preferred that from the first lap of radially inner side number band 47a and second circle band 47b in, band 47
Be partly into the positions of the imaginary line P more circumscribed than with the outer peripheral face 422 of two permanent magnets 42 in the inner part.The structure
After winding two encloses band 47, to radially inner side pressing belt 47 between two adjacent permanent magnets 42, afterwards, heating tape 47 makes to glue
Connect agent solidification.
(other embodiment)
In the above-described embodiment, band 47 uses the band with bonding agent, but can also use after winding band 47 in band 47
Inner side adhesive-applying method, or after the adhesive-applying of outer peripheral face 422 of permanent magnet 42 wind band 47 method.
In the above-described embodiment, band 47 uses width and the equal sized band in the motor axis L directions of permanent magnet 42
47, but it is suitable for by width band 47 spirally winding narrower than the size in the motor axis L directions of permanent magnet 42
The rotor 40 of type.
In the above-described embodiment, exemplified with the permanent magnet type synchronous motor using the present invention, but it is suitable for example
Such as the rotor of stepper motor, other motors and generator.
Claims (13)
1. a kind of rotor, it is characterised in that
The rotor has：
Rotary shaft；
Multiple permanent magnets, circumferential array of the multiple permanent magnet along the rotary shaft, and it is fixed on the periphery of the rotary shaft
Face；And
Band, it and is fixed on the outer of the multiple permanent magnet wound on the radial outside of the multiple permanent magnet by bonding agent
Side face,
Between adjacent two permanent magnet in the multiple permanent magnet, when from the axis direction of the rotary shaft,
The band is partly into the position of the imaginary line more circumscribed than with the outer peripheral face of described two permanent magnets in the inner part,
Between described two permanent magnets, the part that the outer peripheral face formed in base material from the described two permanent magnets of the band floats
The glued oxidant layer filling of at least a portion in the gap at place, the band is to have bonding agent what the base material was applied with bonding agent
Band,
The bond layer is made up of the part oozed out from the base material in the bonding agent.
2. rotor according to claim 1, it is characterised in that
Outer peripheral face winding multi-turn of the band along the multiple permanent magnet,
And when from the axis direction of the rotary shaft, the first lap at least from inner side number of the band is entered than described
The position of imaginary line in the inner part.
3. rotor according to claim 2, it is characterised in that
When from the axis direction of the rotary shaft, at least being enclosed from the first lap of inner side number and second for the band enters
To the position than the imaginary line in the inner part.
4. rotor according to claim 1, it is characterised in that
In the gap, when from the axis direction of the rotary shaft, the interface of the bond layer is in towards described
The concave curved surface of the inside depression in gap.
5. rotor according to claim 1, it is characterised in that
The glass fabric that the base material is made into by glass fibre is constituted.
6. rotor according to claim 1, it is characterised in that
When from the axis direction of the rotary shaft, the outer peripheral face of the multiple permanent magnet is in convex surface.
7. rotor according to claim 1, it is characterised in that
The size of the axis direction of the band is identical with the size of the axis direction of the multiple permanent magnet.
8. rotor according to claim 1, it is characterised in that
The band is impregnated with heat cured epoxies bonding agent in the base material.
9. rotor according to claim 1, it is characterised in that
The band, which is fastened at least to by the bonding agent in the outer peripheral face of the multiple permanent magnet, is located at most radial outside
Top.
10. rotor according to claim 1, it is characterised in that
Position of the part for the band even in the imaginary line more circumscribed than with the outer peripheral face of described two permanent magnets in the inner part
The outer peripheral face of described two permanent magnets is fixed on also by the bonding agent.
11. a kind of motor, it is characterised in that
The motor is the motor with the rotor described in any one of claim 1 to 10,
And the motor has the stator of the tubular opposed with the outer peripheral face of the rotor.
12. a kind of manufacture method of rotor, it is characterised in that
The manufacture method has following process：
Multiple permanent magnets are fixed on to the permanent magnet fixed work order of the outer peripheral face of rotary shaft in the way of circumferentially arranging；And
The band is adhesively fixed on to the periphery of the multiple permanent magnet in the radial outside winding band of the multiple permanent magnet
The tape wrapping process in face,
In the tape wrapping process, after by the radial outside of the tape wrapping to the multiple permanent magnet, described many
Between adjacent two permanent magnet in individual permanent magnet, the band is pressed to radially inner side,
The band is to have bonding agent band what base material was applied with bonding agent,
Between described two permanent magnets, at the part that the outer peripheral face formed in base material from the permanent magnet of the band floats
The glued oxidant layer filling of at least a portion in gap,
The bond layer is made up of the part oozed out from the base material in the bonding agent.
13. the manufacture method of rotor according to claim 12, it is characterised in that
Outer peripheral face by the band along the multiple permanent magnet winds multi-turn.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013238945A JP2015100202A (en) | 2013-11-19 | 2013-11-19 | Rotor, motor and method for manufacturing rotor |
| JP2013-238945 | 2013-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104659941A CN104659941A (en) | 2015-05-27 |
| CN104659941B true CN104659941B (en) | 2017-11-03 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595809.9U Withdrawn - After Issue CN204103632U (en) | 2013-11-19 | 2014-10-15 | Rotor and motor |
| CN201410544823.0A Active CN104659941B (en) | 2013-11-19 | 2014-10-15 | The manufacture method of rotor, motor and rotor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595809.9U Withdrawn - After Issue CN204103632U (en) | 2013-11-19 | 2014-10-15 | Rotor and motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015100202A (en) |
| CN (2) | CN204103632U (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3089328B1 (en) * | 2015-04-27 | 2017-04-19 | Siemens Aktiengesellschaft | Rotor of an electric machine |
| JP2017034774A (en) * | 2015-07-29 | 2017-02-09 | 日産自動車株式会社 | Manufacturing method of rotor |
| JP6336221B1 (en) * | 2016-07-15 | 2018-06-06 | 三菱電機株式会社 | Rotor, rotating electrical machine, and method for manufacturing the rotor |
| JP6915391B2 (en) * | 2016-08-30 | 2021-08-04 | 株式会社デンソー | Stator and its manufacturing method |
| CN107887994A (en) * | 2016-09-30 | 2018-04-06 | 德昌电机(深圳)有限公司 | Motor and its rotor |
| WO2019003487A1 (en) * | 2017-06-28 | 2019-01-03 | 三菱電機株式会社 | Electric motor and electric blower |
| JP2019062638A (en) * | 2017-09-26 | 2019-04-18 | 日本電産株式会社 | motor |
| US10826342B2 (en) | 2017-11-22 | 2020-11-03 | Hamilton Sunstrand Corporation | Permanent magnet generator rotor for integrated drive generator |
| JP2019187164A (en) * | 2018-04-16 | 2019-10-24 | 株式会社日立製作所 | Dynamo-electric machine, and elevator hoisting system |
| US20220231570A1 (en) * | 2019-05-28 | 2022-07-21 | Lg Innotek Co., Ltd. | Motor |
| DE102020100306A1 (en) * | 2020-01-09 | 2021-07-15 | Schaeffler Technologies AG & Co. KG | Electric motor having a rotor with a burst protection sleeve without gluing the magnetic elements |
| CN112134425B (en) * | 2020-08-12 | 2023-04-18 | 浙江迪贝电气股份有限公司 | Method for manufacturing rotor core of permanent magnet motor |
| WO2023007888A1 (en) * | 2021-07-28 | 2023-02-02 | 日本発條株式会社 | Rotor and dynamo-electric machine |
| CN114243981B (en) * | 2022-01-10 | 2023-05-12 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
| CN114759748B (en) * | 2022-05-27 | 2022-11-25 | 宁波招宝磁业有限公司 | Assembly method of motor permanent magnet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4003694B2 (en) * | 2003-05-12 | 2007-11-07 | 株式会社ジェイテクト | Manufacturing method of magnet type motor |
| CN101420140A (en) * | 2007-10-23 | 2009-04-29 | 三菱电机株式会社 | Rotor of rotary motor and production method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200753A (en) * | 1984-03-22 | 1985-10-11 | Fanuc Ltd | Permanent magnet field rotor |
| JPH0739257U (en) * | 1993-12-24 | 1995-07-14 | 株式会社安川電機 | Permanent magnet rotor |
| EP2068425A1 (en) * | 2007-12-05 | 2009-06-10 | E+a Forschungsinstitut Elektromaschinen GmbH | Rotor for an electric synchronous machine |
| JP2013009458A (en) * | 2011-06-22 | 2013-01-10 | Nidec Sankyo Corp | Rotor and motor |
| JP2013165548A (en) * | 2012-02-09 | 2013-08-22 | Fuji Electric Co Ltd | Rotor of surface magnet type rotary electric machine |
| JP2013176210A (en) * | 2012-02-24 | 2013-09-05 | Toyota Motor Corp | Rotor for rotary electric machine and method of manufacturing the same |
-
2013
- 2013-11-19 JP JP2013238945A patent/JP2015100202A/en active Pending
-
2014
- 2014-10-15 CN CN201420595809.9U patent/CN204103632U/en not_active Withdrawn - After Issue
- 2014-10-15 CN CN201410544823.0A patent/CN104659941B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4003694B2 (en) * | 2003-05-12 | 2007-11-07 | 株式会社ジェイテクト | Manufacturing method of magnet type motor |
| CN101420140A (en) * | 2007-10-23 | 2009-04-29 | 三菱电机株式会社 | Rotor of rotary motor and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015100202A (en) | 2015-05-28 |
| CN104659941A (en) | 2015-05-27 |
| CN204103632U (en) | 2015-01-14 |
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