CN108075605A - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN108075605A CN108075605A CN201711128889.1A CN201711128889A CN108075605A CN 108075605 A CN108075605 A CN 108075605A CN 201711128889 A CN201711128889 A CN 201711128889A CN 108075605 A CN108075605 A CN 108075605A
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- China
- Prior art keywords
- motor
- cover
- encoder
- metal cover
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920005989 resin Polymers 0.000 claims abstract description 86
- 239000011347 resin Substances 0.000 claims abstract description 86
- 229910052751 metal Inorganic materials 0.000 claims abstract description 80
- 239000002184 metal Substances 0.000 claims abstract description 80
- 238000001816 cooling Methods 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 230000002452 interceptive effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 238000012360 testing method Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000004412 Bulk moulding compound Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A kind of motor with encoder (1), the temperature for inhibiting encoder (5) excessively rise.Motor (1) is removably mountable to the end of the tossing about by the output phase of motor body (2) (L2) with encoder (5).Encoder cover (60) has metal cover (61) and resin cover (62), and rotation detection portion (5A) is accommodated between two covers.Encoder (5) is abutted with resin cover (62) with the second bearing retainer (13) of motor shell (10), the state that metal cover (61) is not contacted with second bearing retainer (13), is fixed in motor body (2).The radial cooling fin (615) for being formed with heat transmission in the range of not the interfering with conducting wire taking-up portion (68) of metal cover (61).
Description
Technical field
The present invention relates to motor with encoder, the encoders of the rotation with detection motor.
Background technology
In the motor with encoder, some encoders have：Detect the rotation testing agency (rotation of the rotation of rotation axis
Turn test section)；And accommodate the encoder cover of rotation testing agency.Rotation testing agency uses detects magnetic by Magnetosensing element
Magnetic-type rotation testing agency or optical profile type rotation testing agency of the rotation of body etc..Accommodate the encoder cover of rotation testing agency
It is installed in the end of the axis direction of motor shell.This motor (band encoder motor) is disclosed in patent document 1.
In band encoder motor, in order to inhibit the heat transfer of motor generation to coder side, and propose in motor
Separate the scheme of heat between encoder.The optical profile type with encoder motor of patent document 1 rotates testing agency by metal
The component (encoder bracket function part) of system is kept.Encoder bracket function part and rotation testing agency are by resin component (coding
Device shell) it keeps, and it is installed in by resin component the end of the axis direction of motor shell.Therefore, resin component, suppression are passed through
It makes the heat generated in motor-side and is passed to coder side.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2010-41914 publications
The content of the invention
The technical problems to be solved by the invention
In patent document 1, although encoder is installed on motor by the resin component for separating heat, preventing will be in horse
The heat transfer generated up to side is to the not sufficiently effective of coder side.For example, it is formed with configuration rotation axis and bearing in resin component
Breakthrough part, do not separated in the transmission of the heat of the part.Accordingly, there exist can not inhibit what encoder temperature excessively rose
Possibility.
In view of the above problems, the technical issues of of the invention, is, in motor with encoder, inhibits the temperature of encoder
Excessively rise.
For solving the technical solution of technical problem
In order to solve the above-mentioned technical problem, it is a feature of the present invention that having：Rotor and stator are contained in motor shell
Motor body；And the encoder of the end of the one side of the axis direction of the motor shell is fixed on, the coding utensil
Have：Detect the rotation detection portion of the rotation of the rotor；And accommodate the encoder cover of the rotation detection portion, the encoder
Cover has：It is fixed on the resin cover of the motor shell；And from the one side of the axis direction and the resin system
Cover abuts and fixed metal cover, and the rotation detection portion is configured between the metal cover and the resin cover.
By the present invention, separate the heat generated in motor-side using resin cover.Therefore, it is possible to inhibit heat transfer
To rotation detection portion.On the other hand, the thermal diffusivity of metal cover is good.Therefore, it is possible to pass through when the temperature of encoder rises
Metal cover dissipates heat.Thereby, it is possible to inhibit encoder temperature excessively to rise.
In the present invention, it is preferred to the peripheral part in the metal cover radial is formed with the heat dissipation of multiple coder sides
Portion.If configuration codes device side radiating part radial like this, can equably radiate.Also, due to being struck in wind
During the one side of metal cover, air-flow can be made along the radial flowing of coder side radiating part, therefore thermal diffusivity can be improved.
In the present invention, it is preferred to the motor shell has：Cylindrical portion；And it is fixed on the axis of the cylindrical portion
The end plate of the end of the one side in direction is fixed with the encoder, in the end plate in the central portion of the end plate
The peripheral part in portion is radial to be formed with multiple motor-side radiating parts, and the multiple coder side radiator portion is positioned respectively at and institute
State some substantially uniform angle position in multiple motor-side radiating parts.So, the one of metal cover is struck in wind
During side, air-flow is along coder side radiating part and the radial flowing of motor-side radiating part.Therefore, air-flow can be from encoder housing
Surface glibly to the surface flow of motor shell, thus, it is possible to improve the thermal diffusivity of motor body and encoder.
In the present invention, it is preferred to the coder side radiating part is the cooling fin extended on the radial, and in circumferentially phase
The groove portion extended on the radial is formed between adjacent cooling fin, the metal cover has the opposite side in the axis direction
Face opening mounting hole, the metal cover and the resin cover are consolidated by being installed on the fixed component of the mounting hole
Fixed, the mounting hole is formed in and some corresponding angle position in multiple cooling fins.So, due to mounting hole
It is configured to not penetrate through metal cover, therefore the axis direction of made of metal housing need not be increased in the position for being not provided with cooling fin
Thickness.Therefore, it is not necessary to increase the thickness of metal cover, it becomes possible to improve the water proofing property of encoder.
In the present invention, it is preferred to the metal cover have make with the conducting wire that the rotation detection portion is connected by conducting wire
Taking-up portion, the coder side radiating part are arranged on the angle position do not interfered with the conducting wire taking-up portion.So, energy
It enough avoids contacting with coder side radiating part from the conducting wire that conducting wire taking-up portion extracts.Therefore, it is possible to reduce conducting wire damage can
It can property.
In the present invention, it is preferred in a state that the metal cover is fixed compared with the resin cover, by the rotation
Turn test section and be contained in the internal encoder cover to can be removably mounted compared with the motor shell.If in this way, by made of metal
Cover and resin cover can make coding in the state of fixing and rotation detection portion being contained between metal cover and resin cover
Device is dismounted compared with motor body, then the disassembling operations of encoder are easy.Therefore, it is possible to easily be replaced when failure
Encoder.
In the present invention, it is preferred to the rotor is prominent with the one side from the motor shell to the axis direction
Motor-side rotation axis, set between the motor shell and the resin cover in the peripheral side of the motor-side rotation axis
There is space.Thus, the biography of the heat generated in motor-side can be hindered by the space around motor-side rotation axis
It passs.Therefore, motor-side generate heat be not easy to be transferred to coder side, thus, it is possible to inhibit the temperature of encoder it is excessive on
It rises.
In the present invention, magnetic-type rotation detection portion can be used in the rotation detection portion, and the magnetic-type rotation detection portion has
Magnet and Magnetosensing element, the magnet are rotated with the rotation of the rotor, and the Magnetosensing element and the magnet are opposite.It is logical
It crosses using magnetic-type rotation detection portion, even if under the dust atmosphere there are dust, also can unquestionably implement rotation inspection
It surveys.
In the present invention, it is preferred to the resin cover is with flank circumferentially and the flank extended on the radial
In at least one party.If so, the intensity of resin cover can be then improved by flank.
Invention effect
By the present invention, separate the heat generated in motor-side using resin cover.Therefore, it is possible to inhibit heat transfer
To rotation detection portion and metal cover.On the other hand, the thermal diffusivity of metal cover is good.Therefore, it is possible in the temperature of encoder
During rising heat is dissipated from metal cover.Thereby, it is possible to inhibit encoder temperature excessively to rise.
Description of the drawings
Fig. 1 is the stereoscopic figure of motor of the present invention from tossing about from the output phase.
Fig. 2 is the exploded perspective view of motor.
Fig. 3 is by the partial sectional view after motor cutting with the face parallel with axis direction.
Fig. 4 is by the sectional view after motor cutting with the face vertical with axis direction.
Fig. 5 is the exploded perspective view of the encoder observed of tossing about from the output phase.
Fig. 6 is the exploded perspective view for the encoder observed from outlet side.
Fig. 7 is the front view of the motor observed of tossing about from the output phase.
(reference sign)
1 ... motor, 2 ... motor bodies, 4 ... shaft couplings, 5 ... encoders, 5A ... rotation detection portions, 10 ... motor shells,
11 ... iron core retainers, 12 ... clutch shaft bearing retainers, 13 ... second bearing retainers, 15 ... second bearings, 16 ... fixed spiral shells
Nail, 18 ... recess portions, 19 ... flanges, 20 ... stators, 21 ... stator cores, 21A ... segmentation iron cores, 22 ... insulating elements, 23 ... drive
Moving winding, 24 ... conducting wires, 25 ... ground wires, 26 ... moulded resin portions, 30 ... rotors, 31 ... motor-side rotation axis, 32 ... rotors
Iron core, 33 ... magnet, 34 ... small diameter portions, 40 ... conducting wire taking-up portions, 44 ... frame ground terminals, 51 ... coder side rotation axis,
52 ... magnet retainers, 53 ... magnets, 54 ... Magnetosensing elements, 55 ... substrate holders, 56 ... sensor base plates, 57 ... sensors
Cover, 60 ... encoder covers, 61 ... metal covers, 62 ... resin covers, 63 ... 3rd bearing retainers, 64 ... conducting wires, 65,66 ...
Bearing, 67 ... mounting holes, 68 ... conducting wire taking-up portions, 69 ... retainer fixing screws, 70 ... encoder fixing screws, 71 ...
Encoder cover fixing screws, 81 ... annular ribs, 82 ... linear flanks, 83 ... radial flanks, 100 ... output shafts, 110 ...
Side, 111 ... flat parts, 112 ... recessed portions, 113 ... thick wall portions, 120,130,140 ... sides, 121 ... flat parts, 122 ...
Radiating part, 123 ... thick wall portions, 150 ... recess portions, 160 ... cooling fins, 170 ... groove portions, 191 ... annular convex, 192 ... cooling fins,
193 ... annular convex, 194 ... mounting holes, 199 ... seal grooves, 211 ... annular portions, 212 ... salient poles, 213 ... groove-like recess,
571 ... chimeric recess portions, 611 ... flanges, 612 ... cylindrical portions, 613 ... end plates, 614 ... fitting projections, 615 ... cooling fins,
616 ... groove portions, 617 ... mounting holes, 621 ... mounting holes, 622 ... medium pores, 623 ... recess portions, 624 ... stud portions, 625 ... is annular
Protrusion, 626A, 626B ... bearing surface, 627A, 627B ... seal groove, 628 ... recess portions, 631 ... axle portions, 632 ... large-diameter portions,
633 ... mounting holes, 671 ... first mounting holes, 672 ... second mounting holes, 681 ... bushings, 682 ... wiring holes, L ... axis sides
Outlet side (opposite side of axis direction) to L1 ..., L2 ... the output phases are tossed about (one side of axis direction), R ... annuluses
Specific embodiment
Hereinafter, the embodiment of the motor to applying the present invention illustrates referring to the drawings.Fig. 1 is to toss about from the output phase
The stereoscopic figure of motor 1 of the present invention is observed, Fig. 2 is the exploded perspective view of motor 1.Also, Fig. 3 be with axis side
By the partial sectional view (sectional view for being configured with the end of the one side of encoder 5) after 1 cutting of motor, Fig. 4 is in the face parallel to L
With the face vertical with axis direction L by the sectional view after 1 cutting of motor.In the present specification, one side output shaft 100 protruded
As outlet side L1, the one side that the one side protruded with output shaft 100 is opposite is tossed about L2 as the output phase.The output phase L2 that tosses about is
The one side of the axis direction L of motor 1, outlet side L1 are the opposite side of the axis direction L of motor 1.It also, will be with axis direction L
Orthogonal both direction is as x-direction and y-direction.The output shaft 100 of motor 1 is arranged in the center of motor 1 L in the axial direction
The end of the outlet side L1 of the motor-side rotation axis 31 of extension.
(motor body)
The motor 1 of present embodiment is band encoder motor, which is removably mounted
To the end of the L2 that tosses about by the output phase of motor body 2.Motor body 2 has：Motor shell 10；It is configured at motor shell 10
The stator 20 of the tubular of inside；And it is rotatably disposed in the rotor 30 of the inside of stator 20.As shown in Figure 3, Figure 4, rotor
30 have：Motor-side rotation axis 31；It is fixed on the rotor core 32 of the peripheral side of motor-side rotation axis 31；And it is fixed on rotor
The magnet 33 of the outer circumferential surface of iron core 32.In the present embodiment, motor-side rotation axis 31 is made of magnetic material.Also, by
The coder side rotation axis 51 that shaft coupling 4 (with reference to Fig. 3) is connected with motor-side rotation axis 31 is made of non-magnetic material.In addition,
Coder side rotation axis 51 may also be magnetic material.
Motor shell 10 has：Iron core retainer 11 is the cylindrical portion being open towards the axis direction L of motor 1；First
Retainer 12 is the end plate for the end by outlet side L1 for being fixed on iron core retainer 11；And second bearing is protected
Hold frame 13, be fixed on iron core retainer 11 by the output phase toss about L2 end end plate.Clutch shaft bearing (saves sketch map
Show) it is maintained at the inner circumferential side of clutch shaft bearing retainer 12.Also, second bearing 15 is maintained at second bearing retainer 13
Inner circumferential side.Clutch shaft bearing and second bearing 15 are made of ball bearing.Motor-side rotation axis 31 is by clutch shaft bearing and second bearing
15 supportings are that can rotate.Output shaft 100 is formed in (with reference to Fig. 1) from the horse prominent to outlet side L1 of clutch shaft bearing retainer 12
Up to the end of sidespin shaft 31.As shown in Figure 1, clutch shaft bearing retainer 12 and second bearing retainer 13 pass through fixing screws 16
It is screwed to iron core retainer 11.
As shown in figure 3, it is formed in the center of second bearing retainer 13 towards the concave recess portions 18 of outlet side L1, recessed
The peripheral side in portion 18 is formed with flange 19.The inner peripheral surface of recess portion 18 is fixed in the outer ring of second bearing 15, second bearing 15 it is interior
Circle be fixed on be formed in motor-side rotation axis 31 by the output phase toss about L2 end small diameter portion 34.It is formed with along flange 19
The annular convex 191 that outer peripheral edge is protruded towards outlet side L1.Annular convex 191 and iron core retainer 11 are tossed about L2 by the output phase
End be fitted together to.Sealing element is configured between the end face for the L2 that tosses about by the output phase of iron core retainer 11 and flange 19, it is described
Sealing element is assembled in the seal groove 199 for being formed at iron core retainer 11.
The resin cover 62 of aftermentioned encoder cover 60 is connected to flange 19 from the output phase L2 that tosses about.Encoder cover 60 is by spiral shell
Line is anchored on flange 19.Cooling fin 192, the area of peripheral side of the cooling fin 192 in encoder cover 60 are formed in flange 19
Domain towards the output phase toss about L2 protrude.The radial configuration centered on encoder cover 60 of cooling fin 192.
As shown in Figure 3, Figure 4, stator 20 has：Cricoid stator core 21 has in equiangularly spaced multiple convex
Pole；And driving coil 23, each salient pole of stator core 21 is wound in (with reference to Fig. 3) across insulating element 22.Insulation division
Part 22 is made of resin materials such as PET (polyethylene terephthalate).Stator core 21 is by being stacked multiple silicon steel plates
Laminated iron core is formed.The outer circumferential surface of iron core retainer 11 is in square tube shape (with reference to Fig. 1), and inner peripheral surface is cylindrical.Stator iron
Core 21 has：Annular portion 211 is inscribed in iron core retainer 11；And multiple salient poles 212, it is inside from annular portion 211 to footpath
Side protrudes.Groove-like recess 213 is formed in the outer circumferential surface of annular portion 211, the groove-like recess 213 leans on axis from stator core 21
The end of the one side of line direction L extends to the end of opposite side.Groove-like recess 213 is arranged on the circumferential center with salient pole 212
Identical angle position.Stator core 21 is as the multiple segmentations as obtained by being split each salient pole 212 in the circumferential of annular portion 211
Iron core 21A is formed.
Iron core retainer 11 is made of metal (being, for example, aluminum).Iron core retainer 11 is when from outside integrally in side
Barrel shape.The outer circumferential surface of iron core retainer 11 has：Towards the side 110 of +X direction；Towards the side 120 of -X direction；Towards+
The side 130 of Y-direction；And the side 140 towards -Y direction.Circumferentially-adjacent side in the outer circumferential surface of iron core retainer 11
It is formed between face towards the concave recess portion 150 in inner circumferential side.As shown in figure 3, towards the side of +X direction in iron core retainer 11
The center of the width (Y-direction) in face 110 is formed with the first flat part 111.The first flat part 111 in side 110
The both sides of width are formed with recessed portion 112, (opposite with the first flat part 111 in the outside of the width of recessed portion 112
One side) be formed with thick wall portion 113.It is flat that second is formed in the center of the width (Y-direction) of side 120,130,140
Portion 121 is formed with radiating part 122 in the both sides of the width of the second flat part 121.Also, in the width side of radiating part 122
To outside (one side opposite with the second flat part 121) be formed with thick wall portion 123.Radiating part 122 prolongs with L in the axial direction
The cooling fin 160 and groove portion 170 stretched.Cooling fin 160 is alternately arranged with groove portion 170.
Conducting wire taking-up portion 40 is equipped in the side of iron core retainer 11 110, conducting wire 24 is introduced to through conducting wire taking-up portion 40
It is external.Conducting wire 24 is supply lines.Driving coil 23 is connected by crimp type terminal and is connected with three conducting wires 24.U phases, V phases, W phases
Three-phase current is provided to driving coil 23 by conducting wire 24.As shown in Figure 1, Figure 3, it is equipped with frame ground in conducting wire taking-up portion 40
Terminal 44, ground wire 25 are connected to frame ground terminal 44.
It is fixed on the stator core 21 of the inside of iron core retainer 11 and driving coil 23 is molded resin portion 26 (with reference to figure
3) cover.Moulded resin portion 26 is formed as follows.Stator core 21 is fixed on iron core retainer 11 by hot jacket or press-in
Inside, conducting wire 24 is connected with driving coil 23, when conducting wire 24 is taken by the conducting wire from the side 110 for being formed at iron core retainer 11
Go out after portion 40 guides to outside, then mold is configured in the inside of stator core 21.If it is noted between mold and iron core retainer 11
Enter the resin of molding, then resin flows through the slot for the outer circumferential surface between circumferentially-adjacent salient pole 212 and being arranged at annular portion 211
Shape recess portion 213 is filled between mold and iron core retainer 11.If the resin solidification filled forms covering stator
The moulded resin portion 26 of iron core 21 and driving coil 23.
In the present embodiment, the resin of molding is for example using tubular molding compound (BMC：Bulk Molding
Compound).BMC is the resin material for being mixed with the packing materials such as unsaturated polyester resin, calcium carbonate and glass fibre etc..Mould
Resin portion 26 processed is by the heat transfer that driving coil 23 generates to iron core retainer 11.Therefore, it is possible to efficiently disperse drives line
The heat that circle 23 generates.Also, driving coil 23 and conducting wire 24 are molded resin portion 26 and are completely covered and are insulated.
(encoder)
As shown in figure 3, encoder 5 is configured to：Be fixed on motor body 2 by the output phase toss about L2 end volume
The inside of code device cover 60 is accommodated with magnet 53 and the magnetic-type rotation detection portion 5A of Magnetosensing element 54 and sensor wrap 57.Pass through
It is not only small-sized but also can implement accurately to detect using magnetic-type rotation detection portion 5A.Magnet 53 is with Magnetosensing element 54 across rule
Fixed gap is opposite on axis direction L.Sensor wrap 57 is cup-shaped, and magnet 53 and sense are covered in the inside of encoder cover 60
The output phase of magnetic cell 54 is tossed about L2 and peripheral side.Encoder cover 60 has the metal cover 61 and resin cover of aluminum etc.
62.The output phase that metal cover 61 is configured at resin cover 62 is tossed about L2, is configured between metal cover 61 and resin cover 62
There are rotation detection portion 5A and sensor wrap 57.Encoder 5 is with resin cover 62 and the second bearing retainer of motor shell 10
13 abut, metal cover 61 is fixed on motor body 2 with 13 discontiguous state of second bearing retainer.
Rotation detection portion 5A has：It is fixed on the 3rd bearing retainer 63 in the center of resin cover 62；Configuration is the 3rd
Two groups of bearings 65,66 of the inner circumferential side of retainer 63；Two separated positions are by 65,66, bearing on axis direction L
Hold the coder side rotation axis 51 that can be rotated；The end of coder side rotation axis 51 is installed on by magnet retainer 52
Magnet 53；It is fixed on the substrate of toss about by the output phase end face of L2 and the peripheral side of encirclement magnet 53 of 3rd bearing retainer 63
Retainer 55；Be fixed on substrate holder 55 by the output phase toss about L2 end sensor base plate 56；And it is installed in biography
The Magnetosensing element 54 of sensor substrate 56.Coder side rotation axis 51 is by shaft coupling 4 and with being formed at motor-side rotation axis 31
It is connected by the toss about small diameter portion 34 of the end of L2 of the output phase.Shaft coupling 4 is sliding cross coupling, and is formed to absorb horse
Deviate the structure of (bias) up to the axis of sidespin shaft 31 and coder side rotation axis 51.
The conducting wires 64 such as the signal wire of angle detection signal of the output based on Magnetosensing element 54 are transferred to be connected to (with reference to Fig. 1)
Encoder 5.Conducting wire 64 is connected with sensor base plate 56, and outside is guided to from the conducting wire taking-up portion 68 for being arranged at metal cover 61.Such as
Shown in Fig. 1, Fig. 2, conducting wire taking-up portion 68 is arranged on the angle position roughly the same with conducting wire taking-up portion 40, the conducting wire taking-up portion
40 are arranged on the side (i.e. the side 110 of iron core retainer 11) by +X direction of motor body 2.As shown in Fig. 2, conducting wire takes out
Portion 68 has the bushing 681 mounted on the end of radial outside.Conducting wire 64 is from the wiring hole 682 of the central opening in bushing 681
Guide to radial outside.In the present embodiment, wiring hole 682 is brought out towards +X direction, conducting wire 64 towards +X direction.
(encoder cover)
Fig. 5 is the exploded perspective view of encoder 5 that L2 observes of tossing about from the output phase, and Fig. 6 is observes from outlet side L1
Encoder 5 exploded perspective view.It is shown in Fig. 5, Fig. 6 in the position for the L2 covering rotation detection portions 5A that tosses about from the output phase
The state of sensor wrap 57 is configured with, but as be described hereinafter, sensor wrap 57 is simultaneously not secured to rotation detection portion 5A and is affixed to gold
Belong to the inside of system cover 61.As shown in Fig. 2, encoder 5 is removably fixed on the second axis by three encoder fixing screws 70
Hold the flange 19 of retainer 13.Flange 19 has the annular convex formed along the edge for the recess portion 18 for being configured with second bearing 15
193, it is formed with mounting hole 194 in annular convex 193.Mounting hole 194 is arranged at three positions in equiangularly spaced.
In the outer peripheral edge of encoder cover 60, mounting hole 67 is formed in three positions, the mounting hole 67 in equiangularly spaced
Metal cover 61 and resin cover 62 are penetrated through on axis direction L.As shown in figure 3, mounting hole 67 is formed from metal cover
61 the first mounting hole 671 is formed with the second mounting hole 672 for being formed at resin cover 62.By the volume that will pass through mounting hole 67
The end thread of code device fixing screws 70 is anchored on the mounting hole 194 formed on the flange 19 of second bearing retainer 13, encodes
Device 5 is removably installed in motor body 2.
Mounting hole 67 is the slot hole of arc-shaped longer in the circumferential.When encoder 5 is installed on motor body 2, with
The mode that the mounting hole 67 of encoder cover 60 is Chong Die with the mounting hole 194 of flange 19 positions encoder 5, and passes through and make through solid
The encoder fixing screws 70 for determining hole 67 are threadably fastened to the midway of mounting hole 194, carry out interim regular coding device cover 60.Also,
In the state of being fixed temporarily, make encoder cover 60 circumferentially rotatable to adjust the angle position of encoder cover 60, again will afterwards
Encoder fixing screws 70 fasten completely, so as to which encoder 5 is fixed on motor body 2.
Cross sectional shape when metal cover 61 and resin cover 62 are from axis direction L is circle, and they
Roughly same outer diameter.As shown in Figure 5, Figure 6, metal cover 61 has：Cricoid flange 611；It is exported from the mediad of flange 611
The cylindrical portion 612 that opposite side L2 is protruded；And closing cylindrical portion 612 by the output phase toss about L2 end end plate 613.
The inside of cylindrical portion 612 and end plate 613 is formed with the recess portion space for accommodating sensor wrap 57 and rotation detection portion 5A.
As shown in fig. 6, it is formed with fitting projection 614 in the face by outlet side L1 of end plate 613.And as shown in figure 5,
The position opposite on axis direction L with fitting projection 614 is formed with chimeric recess portion 571 in sensor wrap 57.Chimeric recess portion 571
Two positions are formed in fitting projection 614.By making fitting projection 614 chimeric with chimeric recess portion 571, sensor wrap 57 is consolidated
Due to the medial surface of metal cover 61 (with reference to Fig. 3).Also, conducting wire taking-up portion 68 is formed in the cylindrical portion 612 of metal cover 61
Peripheral side.The penetrated wire taking-up portion 68, and in the inner peripheral surface opening of cylindrical portion 612 on the radial of wiring hole 682.
Multiple cooling fins 615 are formed in metal cover 61, the cooling fin 615 is in put in the peripheral side of cylindrical portion 612
It penetrates shape and is radially oriented outside extension.Multiple cooling fins 615 are equiangularly alternatively arranged in the circumferential.But conducting wire be not provided with it
Configuration cooling fin 615 in the angular range in taking-up portion 68.That is, cooling fin 615 is arranged on what is do not interfered with conducting wire taking-up portion 68
Angle position.The groove portion 616 extended on the radial is formed between circumferentially-adjacent cooling fin.Cooling fin 615 and cylindrical portion
612 outer circumferential surface and flange 611 connects.The first mounting hole 671 is formed at three positions of the outer peripheral edge of flange 611.Therefore,
It is arranged on that formed with the radial dimension of the cooling fin 615 of 671 equal angular position of the first mounting hole must be than other cooling fins 615
It is short.
Fig. 7 is the front view of motor 1 that L2 observes of tossing about from the output phase.As described above, in second bearing retainer 13
Flange 19 be formed with cooling fin 192.The cooling fin 192 is matched somebody with somebody at the radial equiangularly interval of peripheral side of metal cover 61
It puts, but cooling fin 192 is not formed in the angle of the interference of conducting wire 64 with conducting wire taking-up portion 68 and from the extraction of conducting wire taking-up portion 68
Spend position.The cooling fin 615 for being formed at metal cover 61 and 192 alignment angles of cooling fin for being formed at second bearing retainer 13
Position configures.That is, the cooling fin 615 for being formed at metal cover 61 is configured in the cooling fin with being formed at second bearing retainer 13
The roughly the same angle position of some cooling fin in 192.Also, it is formed between the angle of cooling fin 615 of metal cover 61
Half every the angle interval for the cooling fin 192 for being formed at second bearing retainer 13.By radial like this
The angle position of cooling fin 615,192 and the cooling fin 615,192 that aligns is configured, can make the air-flow be in along cooling fin 615,192
Radial flowing.Therefore, it is possible to improve thermal diffusivity.
It is open as shown in fig. 6, being formed in the position of the inner peripheral by flange 611 of metal cover 61 towards outlet side L1
Mounting hole 617.Mounting hole 617 is used to resin cover 62 being fixed on metal cover 61.Mounting hole 617 is equiangularly spaced shape
Cheng San position, and it is configured at the angle position among circumferentially-adjacent the first mounting hole 671.Mounting hole 617 is respectively formed
In the angle position identical with some cooling fin in multiple cooling fins 615.In the present embodiment, the depth of mounting hole 617
Thickness than flange 611 is big, but since mounting hole 617 is formed in the inside of cooling fin 615, mounting hole 617 does not penetrate through gold
Belong to system cover 61 (with reference to Fig. 3).
The generally circular plate of resin cover 62.Existing with the mounting hole 617 of metal cover 61 in resin cover 62
Three opposite positions are formed with mounting hole 621 on axis direction L.Mounting hole 621 penetrates through resin cover on axis direction L
62.It is installed to from outlet side L1 using as the encoder cover fixing screws 71 of fixed component in mounting hole 621, and passes through and make coding
The end thread of device cover fixing screws 71 is fastened in the mounting hole 617 of metal cover 61, resin cover 62 and metal cover 61
It is fixed.
As shown in figure 5, be formed with the center for resin cover 62 being penetrated through on axis direction L in the center of resin cover 62
Hole 622.Also, it is formed with by the toss about face of L2 of the output phase in resin cover 62 and surrounds the recess portion 623 of medium pore 622, stud
It is in three equiangularly spaced positions that portion 624, which is formed in the bottom surface of recess portion 623,.Through hole, axis are formed in stud portion 624
Retainer fixing screws 69 are held to be installed in the through hole from outlet side L1.By by the end of retainer fixing screws 69
It is threadably fastened in the mounting hole 633 for being formed at 3rd bearing retainer 63,3rd bearing retainer 63 is fixed in resin system
Cover 62.Rotation detection portion 5A is fixed on resin cover 62 by 3rd bearing retainer 63 as a result,.
As shown in fig. 6,3rd bearing retainer 63 has：The axle portion 631 protruded towards outlet side L1；And it is formed in axis
The output phase in portion 631 is tossed about the large-diameter portion 632 of L2.Axle portion 631 is cylindrical shape, and is configured with bearing in the inner circumferential side of axle portion 631
65th, 66 pass through for coder side rotation axis 51.Axle portion 631 is configured at the medium pore 622 of resin cover 62, and large-diameter portion 632 is matched somebody with somebody
It is placed in recess portion 623.Large-diameter portion 632 formed there are three with the stud portion 624 of resin cover 62 is opposite on axis direction L consolidates
Determine hole 633.3rd bearing retainer 63 is abutted with the terminal surface in stud portion 624 and the quilt on axis direction L by large-diameter portion 632
Positioning.
Resin cover 62 has the annular convex 625 for L2 protrusions of tossing about along the edge of recess portion 622 towards the output phase.Such as figure
Shown in 3, annular convex 625 is chimeric with the inner circumferential side of the cylindrical portion 612 of metal cover 61.The annular convex in resin cover 62
625 peripheral side is formed with the bearing surface 626A abutted with the flange of metal cover 61 611.Ring-type is formed in bearing surface 626A
Seal groove 627A, seal member (with reference to Fig. 3) is configured in seal groove 627A.Also, in resin cover 62 by output
The face of side L1 is formed with the recess portion 628 for surrounding medium pore 622, is formed with and second bearing retainer in the peripheral side of recess portion 628
The bearing surface 626B that 13 annular convex 193 abuts.Cricoid seal groove 627B is formed in bearing surface 626B, in seal groove
Seal member is configured in 627B (with reference to Fig. 3).That is, resin cover 62 is abutted with face with metal cover 61, also with face and second
Retainer 13 abuts.
In resin cover 62 cyclic rib circumferentially is formed with by the toss about face (bearing surface 626A) of L2 of the output phase
Portion 81 and the linear flank 82 extended on the radial.Therefore, the outer peripheral portion of resin cover 62 is by annular rib 81 and straight
Wire flank 82 is strengthened.And the bottom surface of the recess portion 628 for being formed at inner circumferential side in the face by outlet side L1 of resin cover 62
It is formed with radial flank 83.Therefore, the relatively thin inner peripheral portion of the wall thickness of resin cover 62 is strengthened by radial flank 83.As this
Sample in resin cover 62 by forming ribbed shape, to ensure the intensity of resin cover 62, so as to Reducing distortion.In addition, plus
This shape is not limited to the shape of rib by force, its positions and dimensions can be changed suitably.
When encoder 5 is fixed on motor body 2, as shown in figure 3, in resin cover 62 and second bearing retainer 13
Between the position of the peripheral side by motor-side rotation axis 31 and shaft coupling 4 be formed with annulus R.Annulus R is by resin
The recess portion 628 of system cover 62 is opposite with the recess portion 18 of second bearing retainer 13 and is formed.It is configured in the inner circumferential side of annulus R
The axle portion 631 of 3rd bearing retainer 63 and coder side rotation axis 51, the axle portion 631 of the 3rd bearing retainer 63 are pacified
In the medium pore 622 that center loaded on resin cover 62 is formed, and expose towards 2 side of motor body.Therefore, these parts lead to
Cross annulus R and from the metal parts (second bearing retainer 13 and motor-side rotation axis 31 etc.) of 2 side of motor body every
It opens.That is, by forming annulus R, in addition to resin cover 62, the part of 5 side of encoder and the part of 2 side of motor body every
It opens.
(main efficacy results of present embodiment)
The motor 1 of present embodiment is described as described above, form encoder cover 60 by resin cover 62 and metal cover 61
The sensor base plate 56 of Magnetosensing element 54 and magnet 53 have been installed in resin cover 62 and the clamping of the metal cover 61, also,
The resin cover 62 configures the outlet side L1 in sensor base plate 56 and magnet 53, and the metal cover 61, which configures, to be exported
Opposite side L2.The heat generated in 2 side of motor body can be separated by resin cover 62 as a result, so as to inhibit heat
It is transferred to rotation detection portion 5A.On the other hand, the thermal diffusivity of metal cover 61 is good.Therefore, when the temperature of encoder 5 rises
When, heat can be dissipated from metal cover 61.Thereby, it is possible to inhibit encoder temperature excessively to rise.Also, by using metal
System cover 61, it can be ensured that the intensity of encoder cover 60.Therefore, encoder 5 is being placed on downside come situations such as setting motor 1
Under, the possibility that encoder cover 60 is caused to deform due to the weight of motor body 2 can be reduced.
In the present embodiment, it is formed with since the peripheral part in metal cover 61 is radial and radiates as coder side
Multiple cooling fins 615 that portion functions, therefore the thermal diffusivity of metal cover 61 is high.The thermal diffusivity of encoder 5 is high as a result,.And
And since cooling fin 615 is connected with the flange 611 and cylindrical portion 612 of metal cover 61, metal cover 61 can be improved
Intensity.Therefore, be conducive to prevent encoder cover 60 from deforming.
In the present embodiment, it is equipped with second of the end plate from composition motor shell 10 in the peripheral side of metal cover 61
The cooling fin 192 that retainer 13 protrudes, the cooling fin 192 play a role as motor-side radiating part.Therefore, motor body
2 thermal diffusivity improves.Also, the cooling fin 192 of the cooling fin 615 of metal cover 61 and motor shell 10 is radial to match somebody with somebody
It puts, and alignment angles position configures.Therefore, when air-flow on axis direction L when striking encoder 5, it is in put that can make air-flow
Shape is penetrated to flow along cooling fin 615,192.Therefore, it is possible to improve the thermal diffusivity of encoder 5 and motor body 2.
In the present embodiment, it is formed on the radial between cooling fin 615 circumferentially adjacent in metal cover 61
The groove portion 616 of extension.On the other hand, it is formed in the outer peripheral portion of metal cover 61 for by encoder cover fixing screws 71
The mounting hole 617 that metal cover 61 and resin cover 62 are screwed.In the present embodiment, make to be formed with mounting hole 617
Angle position it is not consistent with the angle position of groove portion 616, it is and consistent with the angle position of cooling fin 615.It is therefore, because fixed
Hole 617 does not penetrate through metal cover 61, therefore can improve the water proofing property of encoder 5.Also, increase it is unnecessary to improve water proofing property
Add the thickness of flange 611.
The metal cover 61 of present embodiment has conducting wire taking-up portion 68, and the conducting wire taking-up portion 68 makes and sensor base plate
The conducting wire 64 of 56 connections in the angle position do not interfered with conducting wire taking-up portion 68 by being equipped with cooling fin 615.Also, it is formed at
The cooling fin 192 of second bearing retainer 13 is also disposed at the angle position do not interfered with conducting wire taking-up portion 68 and conducting wire 64.Cause
This, can be avoided conducting wire 64 from being contacted with cooling fin 615,192, so as to reduce the possibility of the damage of conducting wire 64.
The encoder 5 of present embodiment is to be fixed on resin cover 62 by metal cover 61, accommodate rotation detection portion 5A
State in the inside of encoder cover 60 makes encoder cover 60 dismantled and assembled compared with motor shell 10.Therefore, it is possible in encoder
Only alternate coding device 5 during 5 failure.Also, due to the operation that need to only dismount three encoder fixing screws 70, it can just implement coding
The disassembling operations of device 5, therefore the disassembling operations of encoder 5 are easy, so as to readily replaceable encoder.Moreover, because it need not tear open
Encoder cover 60 is disassembled during the operation for filling encoder 5, therefore reduces the possibility that foreign matter enters the inside of encoder cover 60.
In the present embodiment, between resin cover 62 and second bearing retainer 13 by motor-side rotation axis 31 and
The position of the peripheral side of shaft coupling 4 is formed with annulus R.Therefore, hinder to produce in 2 side of motor body by annulus R
Raw heat transfer.The heat generated as a result, in 2 side of motor body is not easy to be transferred to 5 side of encoder, therefore can inhibit to encode
5 temperature of device excessively rises.
Claims (14)
1. a kind of motor, which is characterized in that have：
Rotor and stator are contained in motor shell by motor body, the motor body；And
Encoder, the encoder are fixed on the end of the one side by axis direction of the motor shell,
The encoder has：
Rotation detection portion, the rotation detection portion detect the rotation of the rotor；And
Encoder cover, the encoder cover accommodate the rotation detection portion,
The encoder cover has：
Resin cover, the resin cover are fixed on the motor shell；And
Metal cover, the metal cover are abutted with the resin cover from the one side of the axis direction and fixed,
The rotation detection portion is configured between the metal cover and the resin cover.
2. motor according to claim 1, which is characterized in that
Multiple coder side radiating parts are formed with the peripheral part of the metal cover is radial.
3. motor according to claim 2, which is characterized in that
The motor shell has：
Cylindrical portion；And
End plate, the end plate are fixed on the end of the one side by the axis direction of the cylindrical portion,
Be fixed with the encoder in the central portion of the end plate, the peripheral part of the end plate it is radial be formed with it is more
A motor-side radiating part,
The multiple coder side radiator portion is positioned respectively at roughly the same with some in the multiple motor-side radiating part
Angle position.
4. motor according to claim 3, which is characterized in that
The coder side radiating part is the cooling fin extended on the radial, and is formed between circumferentially adjacent cooling fin
There is the groove portion extended on the radial,
The metal cover have the axis direction opposite side face opening mounting hole, the metal cover with it is described
Resin cover is fixed by being installed on the fixed component of the mounting hole,
The mounting hole is formed in and some corresponding angle position in multiple cooling fins.
5. motor according to claim 4, which is characterized in that
The metal cover have make with the conducting wire that the rotation detection portion is connected by conducting wire taking-up portion,
The coder side radiating part is arranged on the not angle position with conducting wire taking-up portion interference.
6. the motor according to any one of claim 1 to 5, which is characterized in that
In a state that the metal cover is fixed compared with the resin cover, it can make the rotation detection portion being contained in
The internal encoder cover is dismounted compared with the motor shell.
7. motor according to claim 6, which is characterized in that
The rotor has motor-side rotation axis, institute of the motor-side rotation axis from the motor shell to the axis direction
One side protrusion is stated,
Space is equipped between the motor shell and the resin cover in the peripheral side of the motor-side rotation axis.
8. motor according to claim 1, which is characterized in that
The rotation detection portion is the magnetic-type rotation detection portion with magnet and Magnetosensing element,
The magnet is rotated with the rotation of the rotor,
The Magnetosensing element and the magnet are opposite.
9. motor according to claim 1, which is characterized in that
The resin cover is at least one party in flank circumferentially and the flank extended on the radial.
10. motor according to claim 1, which is characterized in that
The rotor has motor-side rotation axis, institute of the motor-side rotation axis from the motor shell to the axis direction
One side protrusion is stated,
Space is equipped between the motor shell and the resin cover in the peripheral side of the motor-side rotation axis.
11. motor according to claim 2, which is characterized in that
The coder side radiating part is the cooling fin extended on the radial, and is formed between circumferentially adjacent cooling fin
The groove portion extended on the radial,
The metal cover has the mounting hole in the face opening of the opposite side of the axis direction,
The metal cover is fixed with the resin cover by being installed on the fixed component of the mounting hole,
The mounting hole is formed in and some corresponding angle position in multiple cooling fins.
12. motor according to claim 11, which is characterized in that
The metal cover have make with the conducting wire that the rotation detection portion is connected by conducting wire taking-up portion,
The coder side radiating part is arranged on the not angle position with conducting wire taking-up portion interference.
13. the motor according to any one of claim 1 to 5, which is characterized in that
In a state that the metal cover is fixed compared with the resin cover, the rotation detection portion is contained in inside
The encoder cover can be removably mounted compared with the motor shell.
14. motor according to claim 13, which is characterized in that
The rotor has motor-side rotation axis, institute of the motor-side rotation axis from the motor shell to the axis direction
One side protrusion is stated,
Space is provided between the motor shell and the resin cover in the peripheral side of the motor-side rotation axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016223026A JP2018082553A (en) | 2016-11-16 | 2016-11-16 | motor |
| JP2016-223026 | 2016-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108075605A true CN108075605A (en) | 2018-05-25 |
Family
ID=62159808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711128889.1A Pending CN108075605A (en) | 2016-11-16 | 2017-11-15 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018082553A (en) |
| CN (1) | CN108075605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210104938A1 (en) * | 2019-10-04 | 2021-04-08 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Handheld surgical instrument with heat management |
| CN113169628A (en) * | 2018-11-28 | 2021-07-23 | 三菱电机株式会社 | Electric motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038962A (en) * | 2018-09-29 | 2018-12-18 | 武汉合康新能电机有限公司 | A kind of integrated temperature control and the motor to test the speed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416571A (en) * | 2006-04-03 | 2009-04-22 | 三菱电机株式会社 | Electronic device case |
| JP2009168610A (en) * | 2008-01-16 | 2009-07-30 | Nikon Corp | Encoder |
| JP2010041914A (en) * | 2008-07-07 | 2010-02-18 | Yaskawa Electric Corp | Motor with encoder |
| CN205070649U (en) * | 2013-11-14 | 2016-03-02 | 腾禾精密电机(昆山)有限公司 | Heat radiator for servo motor |
| CN107872113A (en) * | 2016-09-27 | 2018-04-03 | 日本电产三协株式会社 | Motor |
-
2016
- 2016-11-16 JP JP2016223026A patent/JP2018082553A/en active Pending
-
2017
- 2017-11-15 CN CN201711128889.1A patent/CN108075605A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416571A (en) * | 2006-04-03 | 2009-04-22 | 三菱电机株式会社 | Electronic device case |
| JP2009168610A (en) * | 2008-01-16 | 2009-07-30 | Nikon Corp | Encoder |
| JP2010041914A (en) * | 2008-07-07 | 2010-02-18 | Yaskawa Electric Corp | Motor with encoder |
| CN205070649U (en) * | 2013-11-14 | 2016-03-02 | 腾禾精密电机(昆山)有限公司 | Heat radiator for servo motor |
| CN107872113A (en) * | 2016-09-27 | 2018-04-03 | 日本电产三协株式会社 | Motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113169628A (en) * | 2018-11-28 | 2021-07-23 | 三菱电机株式会社 | Electric motor |
| CN113169628B (en) * | 2018-11-28 | 2022-10-14 | 三菱电机株式会社 | Electric motor |
| US20210104938A1 (en) * | 2019-10-04 | 2021-04-08 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Handheld surgical instrument with heat management |
| US11777375B2 (en) * | 2019-10-04 | 2023-10-03 | Gyrus Acmi, Inc. | Handheld surgical instrument with heat management |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018082553A (en) | 2018-05-24 |
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Application publication date: 20180525 |