CN208571761U - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN208571761U CN208571761U CN201821392676.XU CN201821392676U CN208571761U CN 208571761 U CN208571761 U CN 208571761U CN 201821392676 U CN201821392676 U CN 201821392676U CN 208571761 U CN208571761 U CN 208571761U
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- China
- Prior art keywords
- rotor
- cylinder
- motor
- shaped magnet
- magnet
- Prior art date
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Classifications
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- 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
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The utility model provides a kind of rotor and motor, and the rotor has the resin portion and cylinder-shaped magnet of installation armature spindle, realize magnet be thinning and break-resistance.In motor (1), the rotor (30) for being configured at the inner circumferential side of stator (20) has cylinder-shaped magnet (35) and is configured at the linking part (36) of its inner circumferential side and installs the rotor portions (31) of the resin of armature spindle (40).Linking part (36) is fixed on cylinder-shaped magnet (35) or is integrally formed therewith, and insert-molding is in rotor portions (31).The resin for forming rotor portions (31) is filled in the through hole (362) of linking part (36).Rotor portions (31) are outer peripheral surface (316) shape separated from the inner peripheral surface (351) of cylinder-shaped magnet (35), and therefore, the pressure from resin will not be applied to cylinder-shaped magnet (35).Therefore, can get both cylinder-shaped magnet (35) be thinning and break-resistance.
Description
Technical field
The utility model relates to motor and for the rotor of motor.
Background technique
All the time, using turn of the resin component that will install armature spindle and the cylindric integrally formed construction of magnet
Son.This rotor is disclosed in patent document 1.The rotor of patent document 1 constitutes wind blade, the hot water for being used for air-conditioner air outlet
The motor of the driving of windscreen of device or refrigerator etc. etc..In the motor of patent document 1, it is formed in the resin portion of rotor
Side pinion gear outstanding from from magnet to axis direction.Resin portion has the inner circumferential side cylinder for fulcrum (armature spindle) insertion
Portion, for magnet fixed peripheral side cylindrical portion, the linking part that links inner circumferential side cylindrical portion and peripheral side cylindrical portion radially.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-288069 bulletin
Utility model content
Utility model technical problem to be solved
In the rotor using cylinder-shaped magnet, in order to realize that lightweight and cost reduce, a kind of thinned magnet is proposed
Wall thickness technology.But in the construction of the rotor in patent document 1, when by magnet and resin portion integrated molding, in magnetic
The inner circumferential side filling of iron is used to form the resin of peripheral side cylindrical portion, applies pressure to magnet from inner circumferential side.Therefore, it is being thinned
In the case where the wall thickness of magnet, when being integrally formed, there may be ruptures for magnet.Therefore, the rupture of magnet in order to prevent, cannot
The wall thickness of magnet is thinned, so being unfavorable in terms of the lightweight of rotor.In addition, because not can be reduced the use material of magnet
Material, so being also unfavorable in terms of cost reduction.
In view of this point, the technical issues of the utility model, is, in the resin portion and magnet one that will install armature spindle
In body formed rotor, realize magnet be thinning and break-resistance.
Technical scheme applied to solve the technical problem
In order to solve the above-mentioned technical problem, the utility model provides a kind of rotor, which is characterized in that has and wears for armature spindle
The cylinder-shaped magnet of the rotor portions crossed and the peripheral side for being configured at the rotor portions, the rotor portions are by resin forming, via setting
Linking part in the inner circumferential side of the cylinder-shaped magnet is fixed on the cylinder-shaped magnet, and the resin for constituting the rotor portions is filled out
It fills in the through hole of the linking part, and from the side of the axis direction of the rotor and the other side at least by the linking part
Formation there is the part of the through hole to cover, the outer peripheral surfaces of the rotor portions is separated from the inner peripheral surface of the cylinder-shaped magnet.
According to the utility model, in the rotor, cylinder-shaped magnet and rotor portions are fixed by linking part.Particularly because
Rotor portions and linking part via the through hole for being filled in linking part resin integration, so even if rotor portions are from cylinder-shaped magnet
Inner peripheral surface separate, can also make via linking part rotor portions and cylinder-shaped magnet integration.In addition, because rotor portions are from cylinder
The inner peripheral surface of shape magnet separates, so the pressure from resin will not be applied to the inner circumferential of cylinder-shaped magnet at forming rotor portion
Face.Therefore, in the case where being thinned the wall thickness of cylinder-shaped magnet, cylinder-shaped magnet rupture a possibility that it is few.Therefore, Neng Goushi
Existing cylinder-shaped magnet be thinning and break-resistance, can be realized the lightweight of rotor.
In the present invention, it is generally desirable to, the linking part and the cylinder-shaped magnet are integrally formed.So,
Because not needing process linking part is fixed relative to cylinder-shaped magnet, the assembling work of rotor can be cut down
When.Additionally, it is not necessary to worry that linking part falls off from cylinder-shaped magnet.Therefore, rotor portions and cylinder-shaped magnet can be made integrally to revolve
Turn.
In the present invention, it is generally desirable to, the linking part and the rotor portions are integrally formed.For example, it is desirable that
The linking part insert-molding is in the rotor portions.So, the resin for constituting rotor portions can be filled in linking part
The formation of linking part can be had the part of through hole to cover from the side of axis direction and the other side by through hole with resin.Cause
This, can make rotor portions and connection integrally.
In the present invention, it is generally desirable to, the rotor portions have the axle portion passed through for the armature spindle and from described
For axle portion to radial outside rib outstanding, the rib is set to multiple angle positions, and extends along the axis direction.So,
Because at resin forming resin can flow to the forming position of rib, the flowing of resin can be improved, can make to set
Rouge is spread in the mold of molding.Therefore, it is possible to reduce a possibility that forming defect generates.
It in the present invention, can be using the rotor portions and the integrally formed structure of the armature spindle.For example, can be with
In the mold that linking part and armature spindle are placed on molding in the molding of rotor portions while carrying out insert-molding.So,
Because not needing to be additionally carried out the process that armature spindle is installed on rotor portions, the assembling working hour of rotor can be cut down.
In the present invention, it is generally desirable to, the cylinder-shaped magnet is plastic magnet.If using plastic magnet,
It is capable of forming the relatively thin cylinder-shaped magnet of wall thickness.It is thereby achieved that the lightweight of rotor.
Then, the motor of the utility model has the rotor and is configured at the stator of the peripheral side of the rotor.
(utility model effect)
According to the utility model, in the rotor, cylinder-shaped magnet and rotor portions are fixed by linking part.Particularly because
Rotor portions and linking part via the through hole for being filled in linking part resin integration, so even if rotor portions are from cylinder-shaped magnet
Inner peripheral surface separate, can also make via linking part rotor portions and cylinder-shaped magnet integration.In addition, because rotor portions are from cylinder
The inner peripheral surface of shape magnet separates, so the pressure from resin will not be applied to the inner circumferential of cylinder-shaped magnet at forming rotor portion
Face.Therefore, in the case where being thinned the wall thickness of cylinder-shaped magnet, cylinder-shaped magnet rupture a possibility that it is few.Therefore, Neng Goushi
Existing cylinder-shaped magnet be thinning and break-resistance, can be realized the lightweight of rotor.
Detailed description of the invention
Fig. 1 is the top view for having removed the electronic device after upper housing, reducing gear train and output wheel.
Fig. 2 is the cross-sectional view (cross-sectional view of the position A-A of Fig. 1) of electronic device.
Fig. 3 is the cross-sectional view for applying the motor of the utility model.
Fig. 4 is the exploded sectional view of the motor of Fig. 3.
Fig. 5 (a) to Fig. 5 (c) is the top view, cross-sectional view and bottom view of rotor.
Fig. 6 (a) and Fig. 6 (b) is the top view and cross-sectional view of magnet part.
Fig. 7 (a) to Fig. 7 (c) is the top view that the stator of coil is omitted, side view and bottom view.
Fig. 8 (a) to Fig. 8 (c) is the top view, side view and cross-sectional view of gear plate.
Fig. 9 is the explanatory diagram of the riveting location of motor field frame and gear plate.
Figure 10 (a) to Figure 10 (c) is the top view, cross-sectional view and bottom view of the rotor of variation.
Figure 11 (a) and Figure 11 (b) is the side view and top view of the leaf spring of variation.
(label declaration)
1 ... motor, 10 ... motor field frames, 11 ... base plates, 12 ... cylindrical portions, 13 ... fixation holes, 20 ... stators,
21 ... protruding portions, 22 ... portion of terminal, 23A, 23B, 24A, 24B ... field plate, 25A, 25B ... bobbin winder bracket, 26A, 26B ... coil,
28 ... first end panels, 29 ... second end panels, 30,30A ... rotor, 31,31A ... rotor portions, 32 ... magnet parts, 33 ... axis
Hole, 34 ... rotor pinions, 35 ... cylinder-shaped magnets, 36 ... linking parts, 40 ... armature spindles, 50 ... gear plates, 51 ... through holes,
52 ... are pivotally supported portion, 53 ... protruding portions, 54 ... notches, 55 ... caulking parts, 56 ... location holes, 57A, 57B, 58A, 58B ... bearing
Hole, 59 ... ribs, 60,60A ... leaf spring, 61 ... central portions, 62 ... ends, 63 ... holding sections, 100 ... electronic devices,
101 ... shells, 102 ... reducing gear trains, 103 ... output wheels, 104 ... circuit substrates, 105 ... magnet, 106 ... sensors,
107 ... terminal pins, 108 ... latch, 110 ... lower cases, 111 ... motor incorporating sections, 112 ... bearing portions, 113 ... bottoms,
114 ... sidewall portions, 115 ... corners, 116 ... stage portions, 117 ... protrusions, 120 ... upper housings, 130 ... first gears, 131 ... is big
Diameter gear part, 132 ... small-diameter gear portions, 133 ... fulcrums, 140 ... second gears, 141 ... large diameter gear portions, 142 ... path teeth
Wheel portion, 211 ... location holes, 221 ... terminal pins, 281 ... through portions, 282 ... notches, 291 ... annulus, 292 ... protruding portions,
293 ... protrusions, 311 ... axle portions, 312 ... plectane portions, 313 ... ribs, 315 ... annular convex, the outer peripheral surface of 316 ... rotor portions,
The inner peripheral surface of 351 ... cylinder-shaped magnets, 361 ... medium pores, 362 ... through holes, 521 ... first parts, 522 ... second parts,
523 ... fixation holes, K ... riveting location, L ... axis, the side L1 ..., the other side L2 ..., the gap S ...
Specific embodiment
Hereinafter, being described with reference to apply the implementation of the motor 1 of the utility model and the rotor 30 for motor 1
Mode.The motor 1 of the method is stepping motor, defeated for being transmitted to the rotation of motor 1 via reducing gear train 102
The electronic device 100 of wheel 103 out.
(electronic device)
Fig. 1 is the vertical view for having removed the electronic device 100 after upper housing 120, reducing gear train 102 and output wheel 103
Figure, Fig. 2 is the cross-sectional view (cross-sectional view of the position A-A of Fig. 1) of electronic device 100.Fig. 1, XYZ shown in Fig. 2 these three sides
To being mutually orthogonal direction, the side of X-direction is indicated with X1, the other side is indicated with X2, the side of Y-direction is indicated with Y1, with
Y2 indicates the other side, and the side of Z-direction is indicated with Z1, indicates the other side with Z2.The direction axis L of motor 1 and Z-direction one
It causes.That is, the side Z1 of Z-direction is the side L1 in the direction axis L, the other side Z2 of Z-direction is the other side L2 in the direction axis L.
As shown in Figure 1 and Figure 2, electronic device 100 has motor 1, shell 101, reducing gear train 102, output wheel
103.Electronic device 100 is gearmotor, and the rotation of motor 1 is subtracted by reducing gear train 102 with defined
Speed ratio is transmitted to output wheel 103 after slowing down.As shown in Fig. 2, shell 101 has lower case 110 and upper housing 120.Lower case 110
It is rectangle long in the X direction from Z-direction, is open in the side Z1 of Z-direction.Side Z1 of the upper housing 120 from Z-direction
It is assembled in lower case 110.Motor 1, reducing gear train 102 and output wheel 103 are incorporated in upper housing 120 and lower case 110
Between.
Motor incorporating section 111 is equipped in the side (direction X1) of the longitudinal direction of lower case 110.In addition, in lower case
110 are equipped with the bearing portion 112 for rotatably supporting output wheel 103, and holding circuit substrate 104.It is filled on circuit substrate 104
Equipped with the sensor 106 opposed with the magnet 105 of output wheel 103 is installed in.In electronic device 100, by magnet 105 and pass
The rotation of the detection output wheel 103 of sensor 106.In addition, being maintained on circuit substrate 104 and the portion of terminal 22 set on motor 1
Terminal pins 221 be electrically connected terminal pins 107.Latch 108 shown in dotted lines in Figure 1 is constituted for limiting output wheel 103
The rotationally constrained portion of rotating range.
Motor incorporating section 111 is that the outer peripheral edge from the bottom of rectangle 113 and from bottom 113 is stood to the side Z1 of Z-direction
The recess portion that the sidewall portion 114 risen is surrounded.As shown in Figure 1, the side part Z1 of the Z-direction in sidewall portion 114, in three position shapes
At the corner 115 for thering is medial surface adjacent in the circumferential to connect each other with approximate right angle.In the corner 115 at these three positions
Side is respectively formed with the stage portion 116 for positioning motor 1 in z-direction.
The side Z1 for the Z-direction that reducing gear train 102 configured in the motor 1 for being configured at motor incorporating section 111.Slow down
Gear train 102 has first gear 130 and second gear 140.First gear 130, second gear 140 and output wheel 103 around with
The parallel axis rotation in the direction axis L (Z-direction) of motor 1.Here, in the side (side Z L1 in the direction axis L of motor 1
To side Z1) end be configured with gear plate 50, the through hole 51 in rotor pinion 34 from the center for being set to gear plate 50 is prominent
The side L1 in the direction axis L is arrived out.First gear 130 has the large diameter gear portion 131 engaged with rotor pinion 34 and is located at
The small-diameter gear portion 132 of the side Z1 of the Z-direction in large diameter gear portion 131.Second gear 140 has small with first gear 130
Diameter gear part 132 engage large diameter gear portion 141 and positioned at large diameter gear portion 141 Z-direction other side Z2 small-diameter gear
Portion 142.It is engaged with the gear part for the outer peripheral surface for being set to output wheel 103 in small-diameter gear portion 142.As a result, the rotation of motor 1 from turn
Sub- pinion gear 34 is transmitted to output wheel 103 via first gear 130 and second gear 140.
First gear 130 and second gear 140 are rotatably supported by fulcrum 133,143 respectively.The Z of fulcrum 133,143
The end of the side Z1 in direction is supported by upper housing 120, and the end of the other side Z2 of Z-direction is supported by gear plate 50.That is, in tooth
Support holes 57A, 57B, 58A, 58B of one end of the other side Z2 of the Z-direction of bearing fulcrum 133,143 are formed on wheel plate 50.
About the details of gear plate 50, it is described later on.
(motor)
Fig. 3 is the cross-sectional view for applying the motor 1 of the utility model, and Fig. 4 is the exploded sectional view of the motor of Fig. 3.
In Fig. 3, the rotation position of rotor 30 and the rotation position of Fig. 2 are different.As shown in Figure 3, Figure 4, motor 1 has in axis L
Direction side L1 opening cup-shaped motor field frame 10, be configured at motor field frame 10 inside stator 20, be configured at
The rotor 30 of the inner circumferential side of stator 20, be configured at rotor 30 center armature spindle 40, be installed on the opening of motor field frame 10
Gear plate 50, leaf spring 60 that rotor 30 exerts a force to the side L1 in the direction axis L.Armature spindle 40 is both ends by motor field frame
10 and gear plate 50 support fixing axle.Rotor 30 is rotatably supported by armature spindle 40.
Motor field frame 10 has circular base plate 11 and the side L1 from the outer peripheral edge of base plate 11 to the direction axis L
The cylindrical portion 12 of standing.The fixation hole 13 chimeric for the end of armature spindle 40 is formed in the center of base plate 11.Cylindrical portion 12
The end of side L1 in the direction axis L be formed with circular opening, gear plate 50 is fixed on the inside of the opening.In motor
The notch 14 for cutting the other side L2 in the opening edge of cylindrical portion 12 towards the direction axis L is formed on shell 10.14 shape of notch
At being separated by 90 degree of three angular positions.On stator 20, oriented radial direction is formed at three positions corresponding with notch 14
Outside protruding portion 21 outstanding.The notch 14 of protruding portion 21 from motor field frame 10 is prominent to radial outside.In addition, in motor
On shell 10, it is formed in the angle position different from the notch 14 at three positions for the portion of terminal being set on stator 20
22 notch 15.
Motor 1 is located on motor field frame 10 via protruding portion 21.As shown in Figure 1, from motor field frame 10 to diameter
The front end of the protruding portion 21 protruded outward forms shape corresponding with the corner 115 of motor incorporating section 111.In addition, prominent
Portion 21 is formed with location hole 211 out.Stage portion 116 in the corner 115 for being formed in motor incorporating section 111 is formed with positioning and uses
Protrusion 117.Motor 1, which passes through, is entrenched in the protrusion for being formed in stage portion 116 117 in the location hole 211 of protruding portion 21, and
It abuts protruding portion 21 with stage portion 116 from the side Z1 of Z-direction, is positioned relative to motor field frame 10.
(rotor)
Fig. 5 (a) to Fig. 5 (c) is the top view, cross-sectional view and bottom view of rotor 30, and Fig. 5 (a) is from the one of the direction axis L
The top view of side L1 observation, Fig. 5 (b) is the C-C cross-sectional view of Fig. 5 (a), and Fig. 5 (c) is from the other side L2 in the direction axis L
Bottom view.The magnet part 32 that rotor 30 has the rotor portions 31 of resin and integrally rotates with rotor portions 31.In rotor portions
31 axis hole 33 being centrally formed with for passing through armature spindle 40.Rotor portions 31 have the axle portion 311 for being formed with axis hole 33 and from
Axle portion 311 is to radial outside plectane portion 312 outstanding.In the end of the side L1 in the direction axis L of axle portion 311, in outer peripheral surface
On be formed with rotor pinion 34.
Side L1 and other side L2 in the direction axis L in plectane portion 312 are respectively formed with four ribs 313,314.Rib
313,314 equiangularly interval configurations, and extend along the direction axis L.Rib 313,314 is from the periphery of axle portion 311 towards radial outer
Side is prominent.In addition, rib 313,314 is another with the face of the side L1 in the direction axis L in plectane portion 312 and the direction axis L respectively
The face of side L2 connects.In the other side L2 annular convex 315 outstanding that the outer peripheral edge in plectane portion 312 forms the direction oriented axis L.
Fig. 6 (a) and Fig. 6 (b) is the top view and cross-sectional view of magnet part 32, and Fig. 6 (a) is the side L1 from the direction axis L
The top view of observation, Fig. 6 (b) are the D-D cross-sectional views of Fig. 6 (a).Magnet part 32 has the peripheral side for being configured at rotor portions 31
The cricoid linking part 36 of cylinder-shaped magnet 35 and the inner circumferential side for being configured at cylinder-shaped magnet 35.Cylinder-shaped magnet 35 is in the circumferential
Alternating magnetization is at the pole N and the pole S.In this mode, magnet part 32 is made of plastic magnet, cylinder-shaped magnet 35 and linking part 36 1
Body is formed.Linking part 36 is formed as the plate vertical relative to the direction axis L, positioned at the direction axis L of cylinder-shaped magnet 35
Center.The outer peripheral edge of linking part 36 is connect with the inner peripheral surface 351 of cylinder-shaped magnet 35, is formed with center in the center of linking part 36
Hole 361.Multiple through holes 362 are formed in addition, being equiangularly spaced in linking part 36.
36 insert-molding of linking part is in rotor portions 31.As shown in Fig. 5 (b), the part in addition to outer peripheral edge of linking part 36
It is embedded in the plectane portion 312 of rotor portions 31.The outer peripheral surface 316 of rotor portions 31 is radially from the inner peripheral surface 351 of cylinder-shaped magnet 35
It separates.That is, being formed with gap S between the outer peripheral surface 316 of rotor portions 31 and the inner peripheral surface 351 of cylinder-shaped magnet 35.It is formed and is turned
The resin of sub-portion 31 is filled in the through hole 362 of linking part 36, has the part of through hole 362 from axis the formation of linking part 36
The side L1 and other side L2 in the direction L are covered.Therefore, in plectane portion 312, the side L1 in the direction axis L of linking part 36 is covered
Resin portion with covering other side L2 resin portion be connected by being filled in the resin portion of through hole 362.
(stator)
Fig. 7 (a) to Fig. 7 (c) is top view, side view and the bottom view that the stator 20 of coil 26A, 26B is omitted, Fig. 7
(a) be top view from the side L1 in the direction axis L, Fig. 7 (b) be the direction B shown in Fig. 7 (a) from side view,
Fig. 7 (c) is the bottom view from the other side L2 in the direction axis L.As shown in Fig. 4, Fig. 7 (a) to Fig. 7 (c), stator 20 has
Four circular field plate 23A, 24A, 24B, the 23B and field plate configured in a manner of being overlapped in order along the observation of the direction axis L
Bobbin winder bracket 25A, 25B of the integrally formed resin of 23A, 24A, 24B, 23B, the coil being wound on bobbin winder bracket 25A, 25B
26A,26B.Field plate 23A, 24A, 24B, 23B work as stator core.On field plate 23A, 24A, circumferentially, equally spaced
It is formed with from its inner peripheral with the curved pole tooth of approximate right angle.Field plate 23A, 24A are to be formed in the pole tooth of a side and be formed in another
Alternately arranged mode configures the pole tooth of one side in the circumferential.Equally, it on field plate 23B, 24B, is circumferentially, equally spaced formed
Have from its inner peripheral with the curved pole tooth of approximate right angle.Field plate 23B, 24B are to be formed in the pole tooth of a side and be formed in another party
The mode of the circumferentially alternating arrangement of pole tooth configure.
Stator 20 has by the stator pack of field plate 23A, 24A, bobbin winder bracket 25A and coil 26A the A phase constituted and by field plate
The stator pack for the B phase that 23B, 24B, bobbin winder bracket 25B and coil 26B are constituted.When rotor 30 to be assembled in the inside of stator 20, if
It is opposed with defined gap radially in the pole tooth and cylinder-shaped magnet 35 of the inner peripheral surface of stator 20.As shown in figure 4, in stator
On 20, the radial outside portion of terminal 22 outstanding to field plate 24A, 24B is integrally formed with bobbin winder bracket 25A, 25B.From coil
The winding that 26A, 26B are drawn is connected to the terminal pins 221 for being maintained at portion of terminal 22.
As shown in Fig. 7 (a) to Fig. 7 (c), stator 20 has the first end panel 28 and second end panel 29 of resin, the
End panels 28 and second end panel 29 are integrally formed together with bobbin winder bracket 25A, 25B with field plate 23A, 24A, 24B, 23B.The
End panels 28 are formed in the end of the other side L2 in the direction axis L of stator 20, and second end panel 29 is formed in stator 20
The end of the side L1 in the direction axis L.
As shown in Fig. 7 (c), the shape of first end panel 28 is the circle of a circle smaller than field plate 23B.In first end panel 28
Center be formed with through portion 281.As shown in Figure 2 and Figure 3, when stator 20 is assembled in motor field frame 10, first end panel
28 abut with the base plate 11 of motor field frame 10.That is, clipping first end panel 28, field between field plate 23B and base plate 11
Plate 23B is not contacted with base plate 11.The through portion 281 of first end panel 28 be configured with from the other side L2 in the direction axis L with
The leaf spring 60 that the axle portion 311 of rotor 30 abuts.Therefore, it in through portion 281, is equipped at four positions by the end 62 of leaf spring 60
The position notch 282 that radially outside is cut.Leaf spring 60 has the central portion 61 abutted with the axle portion 311 of rotor 30 and from center
Portion 61 is to radial outside four ends 62 outstanding.End 62 passes through the notch 282 of through portion 281 and the bottom of motor field frame 10
Plate portion 11 abuts.Inhibit the shaking in the direction axis L of rotor 30 by leaf spring 60.
As shown in Fig. 7 (a), second end panel 29 has along the annulus 291 of the inner peripheral formation of field plate 23A and from ring
Shape portion 291 is to radial outside protruding portion 292 outstanding.Protruding portion 292 is equiangularly spaced and is formed in four positions.In four portions
Three positions in the protruding portion 292 of position form the protrusion 293 of the side L1 positioning outstanding in the direction oriented axis L.For
The above-mentioned protruding portion 21 that motor 1 is positioned relative to motor field frame 10 is formed on field plate 23A.Protruding portion 21 from
The outer peripheral edge of field plate 23A is prominent to radial outside.Protruding portion 21 is formed in and dashing forward set on four positions of second end panel 29
The corresponding angle position in three positions of protrusion 293 formed in portion 292 out.Protruding portion 292 in not formed protrusion 293
Angle position is configured with portion of terminal 22.
As shown in Figure 2 and Figure 3, when stator 20 and rotor 30 are assembled on motor field frame 10 and install gear plate 50
In the opening of motor field frame 10, gear plate 50 is abutted from the side L1 in the direction axis L and the second end panel 29 of stator 20.
That is, second end panel 29 is clipped between gear plate 50 and field plate 23A, gear plate 50 in addition to aftermentioned 4 points of caulking part 55 not
It is contacted with field plate 23A.Therefore, because gear plate 50 and field plate 23A are not contacted with face, therefore inhibit gear plate 50 and field
Abnormal sound caused by contact between plate 23A.
(gear plate)
Fig. 8 (a) to Fig. 8 (c) is the top view, cross-sectional view and side view of gear plate 50, and Fig. 8 (a) is from the direction axis L
The top view of side L1 observation, Fig. 8 (b) is the E-E cross-sectional view of Fig. 8 (a), and Fig. 8 (c) is the side from the direction F of Fig. 8 (a)
View.Gear plate 50 is the support plate of the armature spindle 40 of supporting motor 1 and stationary fulcrum 133,143, wherein fulcrum 133,
143 rotatably support each gear 130,140 for constituting reducing gear train 102.In this mode, gear plate 50 is roughly circular
Metal plate.Through hole 51 is formed in the center of gear plate 50 and is pivotally supported portion 52.Rotor pinion 34 from through hole 51 to
The side L1 in the direction axis L is prominent, the major diameter with the first gear 130 of the side L1 in the direction axis L for being configured at gear plate 50
Gear part 131 engages.
The through hole 51 of gear plate 50 be it is generally rectangular, being pivotally supported portion 52 is from the side of the longitudinal direction of through hole 51
What edge erected cuts portion.Portion 52 is pivotally supported to have to the side L1 in the direction the axis L first part 521 erected and relative to first
The second part 522 of center extension of the part 521 with approximate right angle bending and towards gear plate 50.In second part 522, on edge
It observes the position Chong Die with the center of gear plate 50 and is formed with fixation hole 523 in the direction axis L.40 one end of armature spindle is embedded in electronic
The fixation hole 13 of casing body 10, the other end are embedded in the fixation hole 523 in the portion of being pivotally supported 52.
On gear plate 50, protruding portion 53 is formed at three positions of outer peripheral edge.Protruding portion 53 is formed in and motor
The corresponding angle position of notch 14 of shell 10.In addition, be formed with will be corresponding with the notch 15 of motor field frame 10 for gear plate 50
The outer peripheral edge of angle position be cut into and radial orthogonal linear notch 54.Moreover, on gear plate 50, with protrusion
The angle position at portion 53 and different four positions of notch 54 is formed with caulking part 55.Caulking part 55 is the periphery for making gear plate 50
Position made of edge plastic deformation.
Fig. 9 is the explanatory diagram of the riveting location of motor field frame 10 and gear plate 50, is seen from the side L1 in the direction axis L
Examine the top view of motor 1.The protruding portion 53 of gear plate 50 is Chong Die with the protruding portion 21 of stator 20 along Z-direction observation, is configured at
The notch 14 of motor field frame 10.In addition, the caulking part 55 of gear plate 50 is set on different from the notch 14,15 of motor field frame 10
Angle position.In this mode, the cylindrical portion 12 of gear plate 50 and motor field frame 10 is riveted fixation at four positions.This
Outside, it carries out the fixed position of riveting and number can also be different from the position of the method and number.As shown in figure 9, being riveted
Fixed angle position (riveting location K) is four equiangularly spaced positions in this mode.Motor field frame 10 and gear
Plate 50 by the riveting location K at four positions make the edge of the opening of motor field frame 10 to inner circumferential side be plastically deformed and four
Point carries out riveting fixation.In riveting location K, motor field frame 10 and gear plate 50 are engaged, also, the caulking part 55 of gear plate 50
It is contacted with field plate 23A.
On gear plate 50, location hole 56 is formed at three positions of the inner circumferential side of protruding portion 53.Location hole 56 and shape
It is chimeric at the protrusion 293 of the second end panel 29 in stator 20.It is fixed by making when assembling motor field frame 10 and gear plate 50
Position hole 56 and protrusion 293 are chimeric, and gear plate 50 is positioned relative to stator 20.
On gear plate 50, support holes 57A, 58A and branch are formed at four positions of inner circumferential side relative to location hole 56
Bearing bore 57B, 58B.The gear plate 50 of the method corresponds to two kinds of different reducing gear trains 102 of reduction ratio.That is, reducing gear train
102 fulcrum 133,134 is installed in any group in support holes 57A, 58A and support holes 57B, 58B.By fulcrum 133,
In the case that 134 are installed on support holes 57A, 58A, the reducing gear train 102 of the first reduction ratio may be constructed.On the other hand, exist
In the case that fulcrum 133,134 is installed on support holes 57B, 58B, second reduction ratio different from the first reduction ratio may be constructed
Reducing gear train 102.That is, being able to use the electronic device 100 that motor 1 constitutes two kinds of reduction ratio.
In gear plate 50, a ribs 59 is respectively formed in the radially inner side of the riveting location K at four positions.It is logical
Setting ribs 59 is crossed, the deformation of gear plate 50 is inhibited.Ribs 59 is circumferentially extended with arc-shaped.The ribs at four positions
59 form in the angular range comprising riveting location K.That is, ribs 59 is formed in comprising caulking part 55 on gear plate 50
At least part including angular range.Ribs 59 is formed on the surface of the side L1 in the direction axis L of gear plate 50
The recess portion of channel-shaped, back side form the other side L2 shape outstanding to the direction axis L.In this mode, ribs 59 to
The protrusion size of the other side L2 in the direction axis L is less than the plate thickness of the second end panel 29 of stator 20.Therefore, ribs 59 not with
Field plate 23A contact.In addition, ribs 59 is formed in the angle position different from the protruding portion 292 of second end panel 29.Therefore,
Ribs 59 will not be interfered with the protruding portion 292 of second end panel 29.
(the main function and effect of the method)
As described above, the motor 1 of the method has the rotor 30 for the inner circumferential side for being configured at stator 20, the rotor 30 is in circle
The inner circumferential side of tubular magnet 35 is equipped with linking part 36, and linking part 36 is integrally formed with cylinder-shaped magnet 35.Moreover, rotor portions 31
By insertion linking part 36 come resin forming, cylinder-shaped magnet 35 is fixed on via linking part 36.In this way, passing through setting linking part
36, it can be using the shape conduct separated from the inner peripheral surface 351 of cylinder-shaped magnet 35 radially of outer peripheral surface 316 of rotor portions 31
The shape of rotor portions 31, cylinder-shaped magnet will not be applied to by being configured to the pressure from resin at forming rotor portion 31
35.Therefore, in the case where being thinned the wall thickness of cylinder-shaped magnet 35, pressure when molding of cylinder-shaped magnet 35 due to, ruptures
Possibility is smaller, the cylinder-shaped magnet 35 that can get both be thinning and break-resistance.Therefore, it can be realized the lightweight of rotor 30,
The mobility of motor 1 can be improved.Moreover, the lightweight by realizing rotor 30, it is possible to reduce cylinder-shaped magnet 35 makes
With material, cost reduction also may be implemented.
In the rotor 30 of the method, linking part 36 and cylinder-shaped magnet 35 are integrally formed.It therefore, there is no need to carry out to cylinder
Therefore the process of 35 fixed connection portion 36 of shape magnet can cut down the assembling working hour of rotor.In addition, because there is no concern that connection
Portion 36 falls off from cylinder-shaped magnet 35, so rotor portions 31 and cylinder-shaped magnet 35 can be made integrally to rotate.
The linking part 36 and rotor portions 31 of the rotor 30 of the method are integrally formed.By being integrally formed, can turn constituting
The resin of sub-portion 31 is filled in the through hole 362 of linking part 36, is capable of forming the portion that the formation of linking part 36 is had through hole 362
Divide the rotor portions 31 of the shape covered with resin from the side in the direction axis L and the other side.Thereby, it is possible to by rotor portions 31 and even
36 integration of knot.
The rotor portions 31 of the method have the axle portion 311 passed through for armature spindle 40, are equipped in multiple angle positions from axle portion
311 to radial outside rib 313,314 outstanding.Rib 313,314 extends along the direction axis L, therefore, can make in resin forming
Resin is flowed along the shape of rib 313,314.Accordingly, because the flowing of resin can be made good, thus can make resin throughout
The mold of molding.Therefore, a possibility that generating forming defect can be reduced.
The magnet part 32 of the method is formed by plastic magnet.Therefore, the relatively thin cylinder-shaped magnet 35 of wall thickness, energy are capable of forming
The lightweight and cost for enough realizing rotor reduce.In addition, magnet part 32 is not limited to plastic magnet, sintered magnet etc. also can be used
Other magnet.
In addition, the motor 1 of the method is by support of rotor shaft 40 and the gear of the fulcrum of reducing gear train 102 133,143
Plate 50 and the riveting of motor field frame 10 are fixed, and ribs 59 is formed on gear plate 50.Therefore, ribs 59 can be utilized
Inhibit the deformation of gear plate 50.In particular, ribs 59 in radially inner side and is including riveting location K relative to riveting location K
Angular range formed, so riveting caused by deformation be not easy to inner circumferential side spread.Therefore, can inhibit to be arranged in gear plate 50
On the position precision for being pivotally supported portion 52 or support holes 57A, 58A, 57B, 58B reduce.Therefore, rotor 30 can be inhibited and slowed down
The reduction of the position precision of gear train 102.
In this mode, armature spindle 40 is fixing axle, and one end is embedded in the fixation hole 13 of motor field frame 10, and the other end is embedding
Together in the fixation hole 523 in the portion that is pivotally supported 52.Therefore, by being pivotally supported using the deformation and inhibition of the inhibition gear plate 50 of ribs 59
The reduction of the position precision in portion 52 can be improved the position precision of fixing axle (armature spindle 40).
In this mode, ribs 59 is circumferentially.Thereby, it is possible to inhibit to deform caused by riveting to ribs 59
Inner circumferential side diffusion.Therefore, it is able to suppress to be arranged on gear plate 50 and is pivotally supported portion 52 or support holes 57A, 58A, 57B, 58B
Position precision reduces.
In this mode, it is equipped in the center of gear plate 50 and is pivotally supported portion 52, ribs 59 is formed in 52 He of the portion of being pivotally supported
Between riveting location K.In addition, support holes 57A, 58A, 57B, 58B of bearing reducing gear train 102 are set to multiple angle positions,
Ribs 59 is formed in the angle position different from support holes 57A, 58A, 57B, 58B.Configuration in this way, support holes 57A,
58A, 57B, 58B and ribs 59 will not interfere, and can form ribs 59 using the spare space of gear plate 50.
The stator 20 of the method has the first end panel 28 and second end panel 29 of resin, first end panel 28 and
Biend plate 29 is integrally formed together with bobbin winder bracket 25A, 25B of resin with field plate 23A, 24A, 24B, 23B.Second end face
Plate 29 covers a part in the face of 50 side of gear plate of field plate 23A, and gear plate 50 has embedding with the protrusion 293 of second end panel 29
The location hole 56 of conjunction.Ribs 59 is formed in the angle position different from location hole 56, therefore, can utilize the sky of gear plate 50
Complementary space forms ribs 59, and will not interfere with location hole 56.In addition, due between field plate 23A and gear plate 50
The second end panel 29 of resin is clipped, therefore the contact site of field plate 23A and gear plate 50 can be reduced.Therefore, can press down
Make the abnormal sounds such as the trill generated in the contact site of field plate 23A and gear plate 50.
(variation)
(1) armature spindle 40 of aforesaid way is non-rotary fixing axle, but the utility model can be applied to armature spindle 40
It is the mode of the rotary shaft rotated integrally with rotor 30.Figure 10 (a) to Figure 10 (c) is the top view of the rotor 30A of variation, cuts open
View and bottom view, Figure 10 (a) are the top views from the side L1 in the direction axis L, and Figure 10 (b) is the G-G of Figure 10 (a)
Cross-sectional view, Figure 10 (c) are the bottom views from the other side L2 in the direction axis L.The rotor 30A of variation has rotor portions
31A and magnet part 32.The structure of magnet part 32 is identical as aforesaid way.On the other hand, rotor portions 31A is different from aforesaid way,
It is integrally formed with armature spindle 40.In addition, in the not formed rotor pinion of rotor portions 31A.In variation, turned by resin forming
When sub-portion 31A, the linking part 36 of armature spindle 40 and magnet part 32 is placed on together in molding die and carries out insert-molding.Preferably
It is the shape (such as D cutting profile) that rotation stop is formed on armature spindle 40.The outer peripheral surface of rotor portions 31A radially from
The inner peripheral surface of cylinder-shaped magnet 35 separates.Thus, it is possible to obtain function and effect identical with aforesaid way.In addition, in the method
In, because not needing to be additionally carried out the process that armature spindle 40 is installed on rotor portions 31A, it is possible to reduce assembling working hour.
(2) aforesaid way is the mode that linking part 36 and cylinder-shaped magnet 35 are integrally formed, but can also be by linking part 36
It is set as the component seperated with cylinder-shaped magnet 35.For example, it is also possible to which disk-shaped component (linking part) is embedded in cylindric magnetic
The inner circumferential side of iron 35, and cylinder-shaped magnet 35 is fixed on using bonding agent etc..It is in this fashion, same as aforesaid way,
The pressure from resin can be made not to be applied to cylinder-shaped magnet 35.Thus, it is possible to obtain effect identical with aforesaid way
Effect.
(3) motor 1 of aforesaid way has the leaf spring 60 that rotor 30 exerts a force along the direction axis L (Z-direction), but its shape
Shape is not limited to the shape of aforesaid way.Figure 11 (a) is the side view of the leaf spring 60A of variation, and Figure 11 (b) is top view.Deformation
The leaf spring 60A of example have central portion 61, from central portion 61 to radial outside four ends 62 outstanding, from the periphery of central portion 61
The holding section 63 that two positions of edge are erected to the side L1 in the direction axis L.Holding section 63 is formed in radially opposed two
A position.The axle portion 311 of rotor 30 is embedded in the inside of holding section 63.Be able to suppress axle portion 311 using holding section 63 and axis
The shaking in the orthogonal direction in the direction line L.Therefore, in the case where armature spindle 40 is fixing axle, rotor 30 is able to suppress in rotor
In the range of the gap of the inner peripheral surface of the axis hole 33 of the outer peripheral surface and rotor portions 31 of axis 40, in the direction orthogonal with the direction axis L
The case where upper shaking.
(4) motor 1 of aforesaid way is stepping motor, but the utility model also can be applied to stepping motor with
Outer motor.For example, it is also possible to be applied to dc motor.
Claims (7)
1. a kind of rotor, which is characterized in that
Cylinder-shaped magnet with the rotor portions passed through for armature spindle and the peripheral side for being configured at the rotor portions,
The rotor portions are fixed on the circle by resin forming, and via the linking part for the inner circumferential side for being set to the cylinder-shaped magnet
In tubular magnet,
The resin for constituting the rotor portions is filled in the through hole of the linking part, and from the axis direction of the rotor
The formation of the linking part is at least had the part of the through hole to cover by side and the other side,
The outer peripheral surface of the rotor portions is separated from the inner peripheral surface of the cylinder-shaped magnet.
2. rotor according to claim 1, which is characterized in that
The linking part and the cylinder-shaped magnet are integrally formed.
3. rotor according to claim 1 or 2, which is characterized in that
The linking part and the rotor portions are integrally formed.
4. rotor according to claim 1 or 2, which is characterized in that
The rotor portions have the axle portion passed through for the armature spindle and from the axle portions to radial outside rib outstanding,
The rib is set to multiple angle positions, and extends along the axis direction.
5. rotor according to claim 1 or 2, which is characterized in that
The rotor portions and the armature spindle are integrally formed.
6. rotor according to claim 1 or 2, which is characterized in that
The cylinder-shaped magnet is plastic magnet.
7. a kind of motor, which is characterized in that have:
Rotor of any of claims 1 or 2；And
It is configured at the stator of the peripheral side of the rotor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017169088A JP2019047635A (en) | 2017-09-04 | 2017-09-04 | Rotor and motor |
| JP2017-169088 | 2017-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571761U true CN208571761U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987065.8A Active CN109428419B (en) | 2017-09-04 | 2018-08-28 | Rotor and motor |
| CN201821392676.XU Active CN208571761U (en) | 2017-09-04 | 2018-08-28 | Rotor and motor |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987065.8A Active CN109428419B (en) | 2017-09-04 | 2018-08-28 | Rotor and motor |
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| Country | Link |
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| JP (1) | JP2019047635A (en) |
| CN (2) | CN109428419B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428419A (en) * | 2017-09-04 | 2019-03-05 | 日本电产三协株式会社 | Rotor and motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3081419B2 (en) * | 1993-07-09 | 2000-08-28 | ミネベア株式会社 | Rotor structure with synthetic resin mold structure |
| JP4459942B2 (en) * | 2006-10-18 | 2010-04-28 | 三菱電機株式会社 | Manufacturing method of plastic magnet rotor, plastic magnet rotor and air conditioner |
| WO2014054175A1 (en) * | 2012-10-05 | 2014-04-10 | 三菱電機株式会社 | Pump, pump manufacturing method, and refrigeration cycle device |
| JP6243208B2 (en) * | 2013-11-28 | 2017-12-06 | 日本電産テクノモータ株式会社 | Motor and motor manufacturing method |
| CN206332520U (en) * | 2016-12-23 | 2017-07-14 | 上海翡叶动力科技有限公司 | A kind of new type rotor structure of plastic end panel |
| JP2019047635A (en) * | 2017-09-04 | 2019-03-22 | 日本電産サンキョー株式会社 | Rotor and motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428419A (en) * | 2017-09-04 | 2019-03-05 | 日本电产三协株式会社 | Rotor and motor |
| CN109428419B (en) * | 2017-09-04 | 2020-10-30 | 日本电产三协株式会社 | Rotor and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019047635A (en) | 2019-03-22 |
| CN109428419A (en) | 2019-03-05 |
| CN109428419B (en) | 2020-10-30 |
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