throbber
gal TRANSPERFECT
`
`I, Michael O’Keeffe, certify that I am fluent (conversant) in the Japanese and English languages, and that
`the attached English documentis an accurate translation of the Japanese documentattached entitled
`JPH09308163A.I understand that willful false statements and the like are punishable byfine or
`imprisonment, or both, under Section 1001 of Title 18 of the United States Code.
`
`
`
`Michael O’Keeffe
`10 January 2018
`
`LANGUAGE AND TECHNOLOGY SOLUTIONS FOR GLOBAL BUSINESS
`THREE PARK AVENUE, 39TH FLOOR, NEW YORK, NY 10016 | T 212.689.5555 | F 212.689.1059 | WWW.TRANSPERFECT.COM
`OFFICES IN 92 CITIES WORLDWIDE
`
`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1006-0001
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0001
`
`

`

`
`
`
`ID Code
`3/50
`
`
`
`
`Internal Class
`
`
`
`FI
`H02K
`
`
`3/50
`
`(51) Int. Cl6
`H02K
`
`
`
`(19) The Japanese Patent Office (JP)
`(12) PATENT APPLICATION LAID-OPEN PUBLICATION (A)
`
`(11) Laid-Open Publication Number:
`No. H09-308163
`(43) Laid-Open Date: November 28, 1997
`Tech Display location
`A
`
`Request for Examination (not filed)
`
`Number of Claims: 1
`
`FD
`
`(total 4 pages)
`
`
`(21) Application Number: H08-143568
`
`(22) Filing Date: May 13, 1996
`
`(71) Applicant: 000006622,
`
`YASKAWA Electric Corporation,
`2-1 Kurosaki-Shiroishi,
`
`
`Yahatanishi-Ku, Kitakyushu, Fukuoka,
`Japan
`(72) Inventor: Makoto Iikuma, c/o
`2-1
`Electric Corporation,
`Kurosaki-Shiroishi, Yahatanishi-Ku, Kitakyushu,
`
`Fukuoka, Japan
`
`
`
`
`YASKAWA
`
`
`
`
`lead wire
`
`anti-load
`side bracket
`
`bearing
`
`wiring board
`
`ELECTRIC MOTOR
`
`
`(54) [Title of Invention]
`
`(57) [Abstract]
`[Task] To simplify attachment work of a wiring board
`without narrowing the cross-sectional area of a magnetic
`circuit of a stator core.
`[Solution] In an electric motor in which split cores 9, each
`provided with an outer arcuate part 6, an inner arcuate part
`7, and a winding part 8 connecting these arcuate parts to
`each other, and each having a stator winding 16 wound
`around the winding part 8, are arranged annularly, and
`which is equipped with a wiring board 23 for connecting
`winding ends of the stator windings 16, the electric motor
`is provided with: insulators 12 which are attached to the
`respective winding parts 8 of a stator core 5 and around
`which the respective stator windings 16 are wound;
`engagement recesses 28 provided to respective flanges 14
`of the insulators 12; a wiring board 23 made of insulating
`material and having a conductor embedded therein to
`connect the winding ends of the stator windings 16; and
`attachment arms 27 provided on a back side of the wiring
`board 23 and having respective hooks 26 for engagement
`with the engagement recesses 28 of the insulators 12.
`
`receptacle
`
`pedestal
`
`electric motor
`stator core
`frame
`
`load side bracket
`stator winding
`insulating resin
`
`bearing
`
`rotor
`
`rotor shaft
`
`insulator
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0002
`
`

`

`[Claims]
`[Claim 1] An electric motor in which split cores, each
`provided with an outer arcuate part, an inner arcuate part,
`and a winding part connecting the arcuate parts to each
`other, and each having a stator winding wound around the
`winding part, are arranged annularly, the electric motor
`being equipped with a wiring board for connecting the
`winding ends of the stator windings, characterized in that
`the electric motor is provided with: insulators which are
`attached to the respective winding parts of the stator core
`and around which the respective stator windings are
`wound; engagement recesses provided to respective flanges
`of the insulators; a wiring board made of insulating
`material and having a conductor embedded therein to
`connect the winding ends of the stator winding; and
`attachment arms provided on a back side of the wiring
`board and having respective engagement hooks for
`engagement with the engagement recesses of the insulators.
`[Detailed Description of the Invention]
`[0001]
`[Technical Field] The present invention relates to an
`electric motor equipped with a wiring board for connecting
`winding ends of stator windings.
`[0002]
`[Prior Art] Conventionally, an electric motor equipped
`with a wiring board for connecting winding ends of stator
`windings is configured as shown in FIG. 6. In the drawing,
`40 denotes a stator core, which is configured by annularly
`arranging split cores 41, each including an inner arcuate
`part 41b, an outer arcuate part 41a, and a winding part
`connecting these arcuate parts, and fitting a protrusion 41c
`circumferentially protruding from one circumferentially
`facing end surface of each outer arcuate part 41a into a
`recess 41d formed in the other circumferentially facing end
`surface of the outer arcuate part 41a of an adjoining split
`core 41. An insulator is provided to the winding part of
`each split core 41, and a stator winding 42 is wound around
`the insulator. 43 denotes a wiring board attached to
`supports 44 fixed to an end surface of the stator core 40,
`and a plurality of through-holes 45 are provided in a board
`surface of this wiring board. Printed wiring 46 is provided
`between the through-holes 45, and the winding ends of the
`stator winding 42 are inserted into the through-holes 45,
`whereby the winding ends of the stator windings 42 are
`connected.
`[0003]
`[Task to be Achieved by the Invention] However, in the
`conventional technology, holes are formed in the end
`surface of the stator core 40 to attach the supports 44, and
`this narrowed the cross-sectional area of the magnetic
`circuit of the stator core, and in addition, complicated the
`attachment work. The present invention has an object of
`simplifying the attachment work of the wiring board
`without narrowing the cross-sectional area of the magnetic
`circuit of the stator core.
`[0004]
`[Means to Achieve the Task] To solve the above problem,
`according to the present invention, in an electric motor in
`which split cores, each provided with an outer arcuate part,
`an inner arcuate part, and a winding part connecting these
`arcuate parts to each other, and each having a stator
`winding wound around the winding part, are arranged
`annularly, and which is equipped with a wiring board for
`connecting winding ends of the stator windings, the electric
`motor is provided with: insulators which are attached to the
`respective winding parts of a stator core and around which
`
`(2)
`
`
`Patent Application Kokai H09-308163
`
`the respective stator windings are wound; engagement
`recesses provided to respective flanges of the insulators; a
`wiring board made of insulating material and having a
`conductor embedded therein to connect the winding ends
`of the stator windings; and attachment arms provided on a
`back side of the wiring board and having respective
`engagement hooks for engagement with the engagement
`recesses of the insulators.
`[0005]
`[Embodiments of the Invention] In the following, an
`embodiment of the present invention will be described in
`detail with reference to the drawings. FIG. 1 is a
`cross-sectional view of an upper half of an electric motor,
`FIG. 2 is a perspective view showing the structure of a split
`core and an insulator, FIG. 3 is an essential part perspective
`view showing the structure of a stator core to which
`insulators have been attached, FIG. 4 is a perspective view
`of a wiring board, and FIG. 5 is an essential part
`cross-sectional view of a structure in which the wiring
`board has been attached to the insulators. In the drawings,
`1 denotes an electric motor, 2 denotes a frame of the
`electric motor 1, 3 denotes a load side bracket attached to a
`load side end of the frame 2, and 4 denotes an anti-load
`side bracket attached to an anti-load side end of the frame 2.
`5 denotes a stator core attached to an inner circumferential
`surface of the frame 2, the stator core being configured by
`circumferentially arranging split cores 9 each constituted of
`an outer arcuate part 6, an inner arcuate part 7, and a
`winding part 8 as shown in FIG. 2, and fitting a protrusion
`10 protruding circumferentially from one circumferentially
`facing end surface of the outer arcuate part 6 of each split
`core 9 into a recess 11 provided in the other
`circumferentially facing end surface of an adjoining split
`core 9. 12 denotes an insulator, which is constituted of a
`tubular body part 13 and flanges 14, 15 formed on either
`end of the tubular body part 13. A stator winding 16 is
`wound around the tubular body part 13 of the insulator 12,
`and an axial end surface of one flange 14 is provided with a
`rectangular parallelepiped projection 17 that projects
`laterally. On either side of the projection 17 are provided
`grooves 18, 19 for pinching the winding end of the stator
`winding 16. A circumferentially facing side surface of the
`flange 14 is provided with an engagement arm 21 having a
`hook 20, and another side surface of the flange 14 is
`provided with a groove 22 to which the hook 20 of the
`engagement arm 21 is to be engaged. 23 denotes a wiring
`board provided at an axial end of the stator windings 16 to
`connect the winding ends. As shown in FIG. 4, this wiring
`board is formed in a disk shape and provided with
`semicircular recesses 24 on inner and outer peripherals
`thereof, and connection metal fittings 25 are fixed near the
`recesses 24. The wiring board has a conductor (not shown
`in the drawings) embedded therein for connecting the
`winding ends of the stator windings 16, whereby wiring of
`the stator windings 16 is achieved. A back side of the
`wiring board 23 is provided with attachment arms 27 each
`having a hook 26 to engage with one of the engagement
`recesses 28 provided to the flanges 14 of the insulators 6
`[sic]. 29 denotes a rotor provided on a rotor shaft 31
`supported by bearings 30 of the load side bracket 3 and the
`anti-load side bracket 4, 32 denotes a pedestal fixed to the
`frame 2, and 33 denotes a receptacle connected with the
`wiring board 23 by lead wires 34. 35 denotes insulating
`resin covering the stator windings 16. Assembly of the
`stator core having the above structure is performed as
`follows. First, an insulator 12 is attached to the winding
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0003
`
`

`

`part 8 of each split core 9. Subsequently, a stator winding
`16 is wound around the tubular body part 13 of the
`insulator 12. Further, a winding end of the stator winding
`16 is fitted in the groove 18 provided to the flange 14 of
`the insulator 12, and the winding end is wound a half turn
`around the projection 17. Thereafter, the winding end is
`fitted in the groove 19 such that the winding end of the
`stator winding 16 is fixed to the insulator 12. The split
`cores 9 each having the stator winding 16 wound
`therearound as described above are arranged annularly, and
`the protrusion 10 of each split core 9 is fitted into the
`recess 11 of the adjoining split core 9 to fixedly connect
`the split cores 9 to each other, while the engagement arm
`21 of each insulator 12 is engaged with the groove 22 of
`the insulator 12 of the adjoining split core to fixedly
`connect the insulators 12 to each other. Subsequently, the
`wiring board 23 is disposed on one side of the stator core 5,
`and the hooks 26 of the attachment arms 27 provided on
`the back side of the wiring board 23 are engaged with the
`engagement recesses 28 of the flanges 14 of the insulators
`12 to thereby fix the wiring board 23 to the insulators 12.
`The winding ends of the stator windings 16 are fitted in
`and fixed to the connection metal fittings 25 of the wiring
`board 23 fixed to the insulators 12 as described above,
`thereby connecting the stator windings 16. Thereafter, the
`stator windings 16 are covered with insulating resin 35 to
`insulate the stator windings 16, and the stator core 5
`configured as above is fitted in and fixed to the frame 2.
`Thus, because the hooks 26 provided to the wiring board
`23 are engaged with and fixed to the engagement recesses
`28 of the insulators 12, the attachment of the wiring board
`23 is simplified.
`[0006]
`[Effects of the Invention] As described above, according
`to the present invention, because the wiring board 23 for
`connecting the stator windings 16 is fixed to the insulator
`12, it is possible to simplify the attachment work of the
`wiring board without narrowing the cross-sectional area of
`the magnetic circuit of the stator core.
`
`
`[FIG. 1]
`
`receptacle
`
`pedestal
`
`electric motor
`stator core
`frame
`
`load side bracket
`stator winding
`insulating resin
`bearing
`
`lead wire
`
`anti-load side
`bracket
`bearing
`
`wiring board
`
`rotor
`
`rotor shaft
`
`insulator
`
`insulator
`engagement arm
`hook
`flange
`groove
`
`flange
`projection
`
`[FIG. 4]
`
`[FIG. 3]
`
`hook
`
`engagement
`arm
`
`connection
`metal fitting
`
`(3)
`
`
`Patent Application Kokai H09-308163
`
`[Brief Description of Drawings]
`[FIG. 1] A cross-sectional view of an upper half of an
`electric motor, which shows an embodiment of the present
`invention.
`[FIG. 2] A perspective view of a split core and an insulator,
`which shows the embodiment of the present invention.
`[FIG. 3] An essential part perspective view showing the
`structure of a stator core to which insulators have been
`attached, which shows the embodiment of the present
`invention.
`[FIG. 4] A perspective view of a wiring board, which
`shows the embodiment of the present invention.
`[FIG. 5] An essential part cross-sectional view of a
`structure in which the wiring board has been attached to the
`insulators, which shows the embodiment of the present
`invention.
`[FIG. 6] A perspective view of a stator core attached with a
`wiring board, which shows a conventional embodiment.
`[Glossary]
`1 electric motor, 2 frame, 3 load side bracket, 4 anti-load
`side bracket, 5 stator core, 6 outer arcuate part, 7 inner
`arcuate part, 8 winding part, 9 split core, 10 protrusion, 11
`recess, 12 insulator, 13 tubular body part, 14 flange, 15
`flange, 16 stator winding 17 projection, 18 groove, 19
`groove, 20 hook, 21 engagement arm, 22 groove, 23 wiring
`board, 24 recess, 25 connection metal fitting, 26 hook, 27
`attachment arm, 28 engagement recess, 29 rotor, 30
`bearing, 31 rotor shaft, 32 pedestal, 33 receptacle
`
`
`
`
`
`
`
`
`
`
`[FIG. 2]
`
`insulator
`
`split core
`outer arcuate part
`
`recess
`
`protrusion
`winding part
`
`inner arcuate part
`
`groove
`engagement recess
`tubular body part
`groove
`
`[FIG. 5]
`
`wiring board
`
`attachment
`arm
`hook
`
`groove
`
`hook
`
`recess
`
`attachment
`arm
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0004
`
`

`

`Patent Application Kokai H09-308163
`
`
`
`(4)
`
`
`[FIG. 6]
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0005
`
`

`

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`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1006-0006
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0006
`
`

`

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`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1006-0007
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0007
`
`

`

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`HPF O- 308163
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`4vy¥nbl-F 12
`22 fRBLL 25
`7B 26
`
`
`14
`
`(4 }
`
`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1006-0008
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0008
`
`

`

`HPF O- 308163
`
`(4)
`
`(E16 ]
`
`
`
`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1006-0009
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1006-0009
`
`

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