ga |RANSPERFECT
`
`| Gwen Snorteland, certify that I am fluent (conversant) in the Japanese and English languages, and that
`the attached English documentis an accurate translation of the Japanese documentattachedentitled
`Calsonic_P2000-184635_A. 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.
`
`Gwen Snorteland
`
`Sworn to before me this
`February1, 2018
`
` //)L (, Lh
`
`Signature, Notary Public
`
`elllttery,,
`RIAL Ske,
`one (7Awinuam H. SNORTELAND
`se WZ % NOTARY PUBLIC
`a += STATE OF OHIO
`= >___Recorded in
`© Cuyahoga County
`
`39 EESMy Comm. Exp. 1/21/2022
`“area
`
`
`LANGUAGE AND TECHNOLOGY SOLUTIONS FOR GLOBAL BUSINESS
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`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1007-0001
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0001
`
`

`

`(19) Japan Patent Office (JP)
`
`(12) Japanese Unexamined Patent Application
`Publication (A)
`
`(11) Japanese Unexamined Patent Application
`Publication
`No. 2000-184635
`(P2000-184635A)
`
`(43) Publication date: June 30, 2000 (2000.6.30)
`
`(51) Int.Cl.7
`H02K
`1/18
`
`21/14
`
`
`
`Identification Code
`
`F1
`H02K 1/18
`
`21/14
`
`
`
`Theme code (reference)
`5H002
`5H621
`
`C
`M
`
`(21) Application No.:
`(22) Application Date:
`
`
`
`
`H10-360379
`December 18, 1998
`(1998.12.18)
`
`
`
`(54) [Title of the Invention] MOTOR
`
`(57) [Abstract]
`[Object] A “motor” with excellent reliability and durability can
`be provided through an assembling/manufacturing operation
`involving a small number of steps.
`[Means for solving] A motor includes: a stator including a stator
`core and a wound coil 7; and a rotor disposed on an inner side of
`the stator. The stator core includes: a plurality of divided core
`blocks 10 each including a yoke portion and a salient pole
`protruding from the yoke portion that are integrally formed; and
`a divided core holding member 12 in a form with a plurality of
`holding portions 13, holding the divided core blocks 10 in an
`arranged
`form, sequentially coupled
`to each other via
`deformable portions 12a that are deformable. The divided core
`holding member 12 includes insulating covering portions
`13a-13f that cover the salient pole of each of the divided core
`blocks 10 and a portion therearound, and a wound coil 7 is
`insulated from the divided core block 10 by a part 13b and
`13d-13f of the covering portions.
`
`Examination requested: none Number of claims: 3 OL (7 pages in total)
`
`(71) Applicant: 000004765
`Calsonic Kansei Corporation
`24-15, Minami-dai 5-chome, Nakano-ku,
`Tokyo / JP
`(72) Inventor: Shiro Nakamura
`
`Calsonic Kansei Corporation
`24-15, Minami-dai 5-chome, Nakano-ku,
`Tokyo / JP
`(74) Agent: 100097180
`Patent attorney Hitoshi Maeda (and 1 other)
`F term (reference) : 5H002 AA07 AB01 AE08
`5H621 GA01 GA04 GB10 HH01 JK01
`
`
`[FIG. 5]
`
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0002
`
`

`

`(2)
`
`
`
`[Claims]
`[Claim 1] A motor (1) comprising:
`a stator (3) including a stator core (6) and a wound coil (7); and a
`rotor (2) disposed on an inner side of the stator, wherein the stator
`core includes: a plurality of divided core blocks (10) each
`including a yoke portion (11a) and a salient pole (11b) protruding
`from the yoke portion that are integrally formed; and a divided
`core holding member (12) in a form with a plurality of holding
`portions (13), holding the divided core blocks in an arranged form,
`sequentially coupled to each other via deformable portions (12a)
`that are deformable.
`[Claim 2] The motor according to claim 1, wherein the divided
`core holding member (12) includes an insulting covering portion
`(13b, 13d, 13e, 13f) that covers a portion of each of the divided
`core blocks (10) where the wound coil (7) is attached.
`[Claim 3] The motor according to claim 2, wherein the divided
`core block (10) is held by the divided core holding member with a
`part (11b) of the divided core block press fitted in the covering
`portion (13e) of the divided core holding member (12).
`[Detailed Description of the Invention]
`[0001]
`[Technical field to which the present invention belongs] The
`present invention relates to a motor, and particularly relates to a
`structure of a stator of an inner rotor type motor.
`[0002]
`[Conventional technique] Generally used inner rotor type motors
`have a rotor, including a permanent magnet, disposed on the inner
`side of a stator formed with a wound coil attached to a stator core.
`The stator disposed on the outer side of the rotor has a plurality of
`salient poles, protruding inward in a radial direction, integrally
`provided on a yoke portion having an annular shape (cylindrical
`shape). The coil may be directly wound around the salient pole, or
`the wound coil that has already been wound may be attached to the
`salient pole. The rotor is formed with a rotor core, to which a
`plurality of the permanent magnets is fixed, integrally attached to
`a rotational shaft as an output shaft, and is inserted and disposed
`on the inner side of the stator. The rotor is rotated by
`electromagnetic force generated with the wound coil provided to
`each salient pole energized as appropriate.
`[0003] In some cases, such a motor is manufactured with a stator
`core 51 in a form illustrated in Fig. 8 for reducing the number of
`manufacturing steps and cost. Specifically, a plurality of core
`plates 52, each including an annular yoke portion 52a and a
`plurality of salient poles 52b protruding inward in the radial
`direction from the yoke portion 52a, are formed by punching a
`magnetic metal plate with a press machine, and are stacked and
`integrated.
`[0004] The salient poles (stacked salient poles 52b) of the stator
`core 51 protrude
`inward from
`the annular yoke portion
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`
`
`(the stacked yoke portions 52a) on the outer side. Thus, the
`winding of the coil or the attaching of the wound coil needs to take
`place on the inner side of the stator core 51 (a portion where the
`rotor is to be inserted and disposed). However, such a space on the
`inner side of the stator core 51 is small, and thus the operation of
`winding the coil or attaching the wound coil is not easy and
`requires a large number of work steps. Furthermore, the number of
`coils is limited in some cases.
`[0005] In view of the above, the following technique has been
`proposed. Specifically, divided core blocks 54 as illustrated in Fig.
`9 are formed with a plurality of divided pieces (divided core
`plates) 53, formed by dividing (splitting) the core plate 52
`illustrated in Fig. 8 at portions of the yoke portion 52a each being
`at approximately the middle of a section between salient pole 52b
`and salient pole 52b of yoke portion 52a, stacked and integrated.
`After the coil is wound around or the wound coil is attached to the
`stacked salient poles 53b of the divided core block 54, the divided
`core blocks 54 are arranged to be in an annular form with adjacent
`yoke portions 53a in contact with each other, and then welding is
`performed between the stacked yoke portion 53a of each adjacent
`divided core blocks 54 so that an integrated structure can be
`established.
`[0006] Furthermore, the portion of the divided core block to be
`provided with the wound coil is coated with insulating resin to
`guarantee insulation from the wound coil, and the wound coil is
`attached to the coated portion.
`[0007]
`[The problem to be solved by the invention] The conventional
`technique described above, in which the stator core is formed with
`the divided core blocks arranged in an annular form are welded
`and fixed to each other at the yoke portions, has advantages that
`the operation of winding the coil or attaching the wound coil can
`be easily performed and the number of coils can be increased. In
`addition, the welding operation, which is an essential aspect, is not
`something that can be easily performed, and involves heat or the
`like that might damage the wound coil. An error in the welding
`operation might lead to insufficient fixing between the yoke
`portions, leading to a brittle structure, resulting in low reliability
`and low durability. The operation of coating the portion of the
`divided core block where the wound coil is to be attached is a
`cumbersome operation also resulting in an increased number of
`operation steps.
`[0008] The present invention is made in view of the problems of
`the conventional technique described above, and an object of the
`present invention is to provide a motor with excellent reliability
`and durability that can be assembled/manufactured with a small
`number of operation steps.
`[0009]
`[Means for solving the problem] 1. A motor according to claim 1
`for achieving the object includes: a stator including a stator core
`and a wound coil; and a rotor disposed on an inner side of the
`stator, wherein the stator core includes: a plurality of divided core
`blocks each including a yoke portion and a salient pole protruding
`from the yoke portion that are integrally formed; and a divided
`core holding member in a form with a plurality of holding
`portions, holding the divided core blocks in an arranged form,
`sequentially coupled to each other via deformable portions that are
`deformable.
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0003
`
`

`

`(3)
`
`
`
`In this configuration, although not limited, the yoke portion may
`have a substantially arch form, and the salient pole may be formed
`to protrude inward in a radial direction from the yoke portion.
`[0010] In the invention according to claim 1, a plurality of divided
`core blocks are prepared, and are held by the divided core holding
`member with the deformable portions deformed as appropriate to
`achieve an easier operation. In this state, a coil wire is wound
`around the salient pole of each divided core block or the wound
`coil is attached to the salient pole. The wound coil may be
`attached to the salient pole before the divided core holding
`member holds the divided core block.
`[0011] Then, the divided core holding members, holding the
`divided core blocks, are deformed at the deformable portions to
`have the holding members arranged in a substantially annular
`form. Thus, the yoke portions of the divided core block are formed
`into a substantially annular form with
`the salient poles
`substantially oriented toward the center. In this state, both end
`portions of the divided core holding members are joined and fixed
`to each other, and thus the stator is formed.
`[0012] Thus, the divided core blocks are not integrated by welding
`as in the conventional technique, and are integrated via the divided
`core holding members, whereby assembling and manufacturing
`operations can be extremely easily performed with a much smaller
`number of operation steps. With no welding operation performed,
`the configuration is free of risks such as the wound coil being
`damaged by heat or an erroneous welding operation or insufficient
`welding resulting in a failure to achieve a sufficiently high
`strength of the stator, and thus can achieve high reliability and
`durability.
`[0013] The wound coil can be easily attached to the divided core
`block held by the holding member of the divided core holding
`member, or the divided core block in a state of not being held.
`Thus, the wound coil can be attached with an easy operation, and
`the number of operation steps can be reduced. The operation of
`attaching the wound coil is less likely to be hindered by the other
`salient poles. Thus, the number of times the coil wire is wound can
`be increased, and the motor can have an increased output or can be
`downsized.
`[0014] 2. Although not limited, in the invention described above,
`the divided core holding member includes insulting covering
`portion that covers a portion of each of the divided core blocks
`where the wound coil is attached, as in the motor according to
`claim 2.
`[0015] The portion of the stator core where the wound coil is
`attached may be coated and insulated with resin or the like to
`guarantee insulation from the wound coil. The invention according
`to claim 2 features the divided core holding member including the
`covering portions so that the insulating coating operation can be
`omitted, whereby
`the number of operation steps
`in
`the
`assembling/manufacturing operation of the motor can be reduced.
`[0016] 3. Although not limited, in the invention described above,
`the divided core block is held by the divided core holding member
`with a part of the divided core block press fitted in the covering
`portions of the divided core holding
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`
`
`member, as in the motor according to claim 3.
`[0017] The divided core block is held by the covering portions of
`the divided core holding member. Thus, the covering portions
`have both the insulating covering function and a function of
`holding the divided core block, whereby a more simple and
`efficient configuration can be achieved compared with a
`configuration where a structure of holding the divided core block
`is provided separately from the covering portion.
`[0018]
`[Mode for carrying out the invention] An embodiment of the
`present invention is described below with reference to the
`drawings. Fig. 1 is a perspective view illustrating a main part of a
`motor according to the embodiment of the present invention. Fig.
`2 is a perspective view of a stator core according to the
`embodiment of the present invention. Fig. 3 is a plan view of a
`divided core plate forming the stator core according to the
`embodiment of the present invention. Fig. 4 is a plan view of a
`main part of the stator core before being formed into an annular
`form according to the embodiment of the present invention. Fig. 5
`is as plan view illustrating a main part of the stator core after being
`formed into the annular form according to the embodiment of the
`present invention. Fig. 6 is a cross-sectional view taken along line
`vi-vi in Fig. 4. Fig. 7 is an exploded cross-sectional view of Fig. 6.
`[0019] First of all, an overall schematic configuration of a motor
`according to this first embodiment is described with reference to
`Fig. 1. This motor 1 includes: a rotor 2 as a rotating member; a
`stator 3 as a fixed member; and an unillustrated motor housing
`incorporating these components; and the like.
`[0020] The rotor 2 is formed with an output shaft (shaft) 5 inserted
`in a through hole formed at the center of the rotor core 4 to be
`integrally fixed. A plurality of permanent magnets (not illustrated)
`having a flat plate form or a curved (arch shaped) plate form are
`attached to the rotor core 4. The output shaft 5 of the rotor 2 is
`supported by the motor housing.
`[0021] The stator 3 includes: a stator core 6 having a substantially
`cylindrical shape; and a plurality of wound coils 7. The stator core
`6 is formed with a plurality of salient poles 9, protruding inward in
`a radial direction, which are integrally formed on an inner side of
`the yoke portion 8 having a substantially cylindrically shape, in
`such a manner that a slot is formed between each adjacent salient
`pole 9. The stator 3 is fixed to an inner side of the motor housing.
`[0022] The rotor 2 is inserted and disposed while being separated
`from the salient poles 9 of the stator core 6 with a predetermined
`gap provided in between. The wound coils 7 are each wound
`around a corresponding one of the salient poles 9 of the stator core
`6. When the wound coils 7 are energized by being provided with
`current at a predetermined timing, the rotor 2 is rotated by an
`electromagnetic action achieved with the permanent magnets of
`the rotor 2.
`[0023] Next, a structure and a manufacturing method of the stator
`core 6 are described with reference to Figs. 2 to 7. The stator core
`6 includes: a plurality of (8 units in Fig. 2) divided core blocks 10
`each formed by stacking and integrating a plurality of divided core
`plates 11; and a pair of divided core holding members 12 that
`integrally holds a divided core block 10
`in an annular
`arrangement.
`[0024] As illustrated in Fig. 3, the divided core plates 11 each
`
`
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0004
`
`

`

`(4)
`
`
`
`include: a divided yoke portion 11a formed to have a substantially
`arch shape; a salient pole 11b protruding inward in the radial
`direction from the divided yoke portion 11a; and an arch portion
`11c formed at a distal end portion of the salient pole 11b to have a
`substantially arch form. The plate with
`these components
`integrally formed is manufactured by punching a magnetic metal
`sheet with a press machine.
`[0025] Although not elaborated in the figure, one or a plurality of
`half-pierces (embosses) are further formed on the divided yoke
`portion 11a and/or the salient pole 11b of the divided core plate 11
`by the processing by the press machine. The half-pierce includes a
`protrusion formed on one surface of the divided core plate 11 and
`a recess formed at a corresponding portion on the other surface.
`The protrusion is formed to have a shape capable of being fitted or
`press fitted in the recess. The thickness of the divided core plate
`11 is not particularly limited. In this embodiment, the thickness is
`set to be about 0.5 mm.
`[0026] The plurality of the divided core plates 11 each having the
`configuration described above are prepared, and the divided core
`plates 11 are stacked and
`integrated with
`the half-pierce
`(protrusion) of one plate press fit in the half-pierce of another one
`of the plates. Thus, the divided core block 10 is formed with
`integrated components including: a yoke portion (stacked divided
`yoke portion including the stacked divided yoke portions 11a;
`salient poles (the stacked salient poles) 9 including the stacked
`salient poles 11b; and an arch portion obtained by stacking
`(stacked arch portion) 11c.
`[0027] As illustrated in Fig. 4 -Fig. 7, the divided core holding
`member 12 includes a plurality of holding portions 13 for holding
`the divided core block 10 that are arranged on a single line and are
`coupled to each other in series via thin deformable portions 12a.
`The adjacent holding portions 13 can pivot with each other with
`the deformable portion 12a deformed.
`[0028] The holding portions 13 of the divided core holding
`member 12 each include: a yoke end surface covering portion 13a
`that is in a flat plate form with substantially the same shape as the
`yoke portion 11a of the divided core block 10; a salient pole end
`surface covering portion 13b that is in a flat plate form with
`substantially the same shape as the salient pole 11b of the divided
`core block 10; an arch end surface covering portion 13c that is in a
`flat plate form with substantially the same shape as the arch
`portion 11c of the divided core block 10; a pair of yoke side
`surface covering portions 13d for covering side surfaces of the
`yoke portion 11a of the divided core block 10 on the side of the
`salient pole 11b; a pair of salient pole side surface covering
`portions 13e in a flat plate form for covering both side surfaces of
`the salient pole 11b of the divided core block 10; and a pair of arch
`side surface covering portions 13f in an arch plate form for
`covering side surfaces of the arch portion 11c of the divided core
`block 10 on the side of the salient pole 11b, and is integrally
`formed by molding using an insulating thermoset resin material.
`Examples of the resin material that can be used for the divided
`core holding member 12 include polybutylene terephthalate (PBT)
`and polyethylene terephthalate (PET).
`[0029] As illustrated in Fig. 7, the divided core block 10 is
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`
`
`held by the holding portions 13 of the divided core holding
`members 12, with a corresponding portion inserted or press fitted
`in a pair of rectangular U shaped portions of the divided core
`holding member 12, each defined by each of the pair of yoke side
`surface covering portions 13d, the salient pole side surface
`covering portion 13e, and the arch side surface covering portion
`13f, in such a manner that the yoke portion 11a, the salient pole
`11b, and the arch portion 11c respectively have end surfaces in
`contact with the yoke end surface covering portion 13a, the salient
`pole end surface covering portion 13b, and the arch end surface
`covering portion 13c from the inner side.
`[0030] The plurality of divided core blocks 10 are held by being
`clamped between the pair of divided core holding member 12 in
`an upper and lower direction, and are in the state where the
`holding portions 13 are, for example, substantially arranged on a
`single line by being pivoted with the deformable portions 12a
`deformed as illustrated in Fig. 4 for the sake of workability. In this
`state, the coil is wound around the salient pole 11b (9), covered by
`the covering portions 13b and 13e of the divided core block 10 to
`be insulated, with a dedicated or a general-purpose winder or
`manually. Thus, the wound coil 7 is formed, and is fixed with
`resin soaked into the wound coil 7 or through other suitable ways.
`The wound coil 7 may be attached to the salient pole 11b of the
`divided core block 10 with the wound coil 7, wound in advance,
`attached to the salient pole 11b.
`[0031] The divided core holding member 12, to which the wound
`coils 7 are attached, holding the plurality of divided core blocks
`10, as shown in Fig. 5, has the holding portions 13 pivoted about
`the deformable portions 12a to be in an annular form, in such a
`manner that the yoke portions 11a of the divided core block 10
`form a substantially annular form with the salient poles 11b
`oriented toward the center. In this state, a gap is formed between
`each adjacent arch portions 11c.
`[0032] Next, both end portions of the pair of divided core holding
`members 12 are joined and fixed to each other, whereby the stator
`core 6 (stator 3) in an annular form as illustrated in Fig. 2 and Fig.
`5 is manufactured. How both end portions of the divided core
`holding members 12 are joined is not particularly limited, and
`fixing using an adhesive 14 (see Fig. 2) may be employed for
`example. Alternatively, engagement portions that engage with
`each other may be formed in advance on both end portions of the
`divided core holding members 12, and the fixing may be achieved
`with the engagement portions. Furthermore, the joined portions
`may be welded to each other.
`[0033] In the present embodiment as described above, the plurality
`of divided core block 10 are clamped by the pair of divided core
`holding members 12 to be held by the holding portions 13, and the
`pair of divided core holding members 12 have their both end
`portions joined and fixed to each other to be integrated, whereby
`the stator 3 is formed.
`[0034] Thus, the divided core blocks are not integrated by welding
`as in the conventional technique, and are integrated via the divided
`core holding members 12, whereby assembling and manufacturing
`operations can be extremely easily performed with a much smaller
`number of operation steps. Furthermore, with no welding
`operation performed, the configuration is free of risks such as the
`wound coil being
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0005
`
`

`

`(5)
`
`
`
`damaged by heat or an erroneous welding operation or insufficient
`welding resulting in a failure to achieve a sufficiently high
`strength of the stator, and thus can achieve high reliability and
`durability.
`[0035] The holding portions 13 of the divided core holding
`member 12 holding the divided core blocks 10 can be pivoted with
`respect to each other about the deformable portions 12a, whereby
`the wound coil attaching operation can be easily performed with
`the divided core holding members 12 deformed as appropriate to
`be suitable for the operation. Similarly, the divided core holding
`members 12 can be deformed at the deformable portions so that
`the divided core blocks 10 can be integrally fixed while being
`annularly arranged. This operation can be easily performed.
`[0036] In the embodiment described above, the divided core
`holding member 12 includes the covering portion 13a-13f that
`integrally forms covering portion 13a-13f and covers the salient
`pole 11b of the divided core block 10 as well as a portion
`therearound. Thus, the parts 13b and 13d-13f of the covering
`portion is provided between the wound coil 7 that has been
`attached and the divided core block 10, whereby excellent
`insulation can be achieved between the wound coil 7 and the
`divided core block 10. Thus, no additional coating operation or the
`like for coating the divided core block 10 in an insulating manner
`is required. According to the embodiment described above, the
`assembling/manufacturing operation for the motor can be easily
`performed and involves a smaller number of operation steps.
`[0037] The divided core block 10 is held by the holding portions
`13 of the divided core holding member 12 with the corresponding
`portion of the divided core block 10 inserted or press fitted in the
`portion defined by the covering portions 13d-13f of the divided
`core holding member 12. Thus, the covering portions of the
`divided core holding member 12 can achieve both covering and
`holding functions. Thus, a more simple and efficient configuration
`can be achieved compared with a configuration having each of the
`functions implemented with an independent dedicated structure.
`[0038] The embodiment described above
`is described for
`facilitating an understanding of the present invention and is not
`described to limit the present invention. Thus, the components
`disclosed in the embodiment described above include all design
`changes and their equivalents within the technical scope of the
`present invention.
`[0039] In the embodiment described above, the motor according to
`the present invention is formed with permanent magnets fixed to
`the rotor. However, such a motor should not be construed in a
`limiting sense, and the motor according to the present invention
`includes any inner rotor type motor in which a wound coil is
`wound around a salient pole of a stator, and thus may be an SR
`motor with a rotor provided with no magnet.
`[0040] The number, the shape, the thickness, the size and the like
`of the divided core block of the stator core and the divided core
`plate of the divided core block may be set as appropriate.
`[0041] The configuration of the divided core holding member is
`not limited to that in the embodiment described above. A yoke
`outer surface covering portion, for covering a side surface of the
`yoke portion 11a of the divided core block 10 on the side opposite
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`
`
`to the side of the salient pole 11b may be integrally formed. Thus,
`the divided core block 10 can be more effectively held. In such a
`configuration, the deformable portion may be integrally formed
`along the yoke outer surface-covering portion to have a long
`length and a higher rigidity.
`[0042] Furthermore, in the embodiment described above, the
`divided core block 10 is held while being clamped by the pair of
`divided core holding members 12 in the upper and lower direction.
`Alternatively, the length (depth) of the covering portions 13d-13f
`may be increased so that the holding can be achieved with a single
`divided core holding member. The divided core block 10 may be
`additionally bonded and fixed to the divided core holding member
`12 with an adhesive or the like. Engagement portions as
`counterparts may be provided to the divided core block 10 and the
`divided core holding member 12, and engaged to achieve a
`structure with a higher integrity.
`[0043] One or a plurality of metal terminals for establishing
`connection and fixing between end portions of the coil wires may
`be provided on the outer side of the yoke end surface covering
`portion 13a of the divided core holding member 12, for example.
`In such a configuration, the metal terminal may be fixed in the
`following manner. For example, the metal terminal in a form of a
`pin may be press fitted and fixed in a closed hole formed on the
`yoke end surface covering portion 13a of the divided core holding
`member 12, from the outer side.
`[0044] The holding portions 13 of the divided core holding
`member 12 are integrally formed with the thin deformable
`portions 12a to be coupled to each other. Alternatively, the holding
`portions may each be independently molded with a corresponding
`one of the holding members, and may be pivotally coupled to each
`other via deformable portions including a hinge and the like.
`[0045]
`[Effect of the invention] According to the present invention
`described above, a motor with excellent reliability and durability
`can be provided through an assembling/manufacturing operation
`involving a small number of steps.
`[Brief description of the drawings]
`Fig. 1 is a perspective view illustrating a main part of a motor
`according to an embodiment of the present invention.
`Fig. 2 is a perspective view of a stator core according to the
`embodiment of the present invention.
`Fig. 3 is a plan view of a divided core plate forming the stator
`core according to the embodiment of the present invention.
`Fig. 4 is a plan view of a main part of the stator core before
`being formed
`into an annular form according
`to
`the
`embodiment of the present invention.
`Fig. 5 is as plan view illustrating a main part of the stator core
`after being formed into the annular form according to the
`embodiment of the present invention.
`Fig. 6 is a cross-sectional view taken along line vi-vi in Fig. 4.
`Fig. 7 is an exploded cross-sectional view of Fig. 6.
`Fig. 8 is a perspective view of a stator core according to a
`conventional technique.
`Fig. 9 is a perspective view of a stator core according to
`another conventional technique.
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0006
`
`

`

`
`
`[Reference Signs List]
`1 ......... motor
`2 ......... rotor
`3 ......... stator
`4 ......... rotor core
`5 ....... output shaft
`6 ......... stator core
`7 ......... wound coil
`8 ......... yoke portion
`9 ......... salient pole
`
`
`[FIG. 1]
`
`FIG. 1
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`(6)
`
`
`
`10 ....... divided core block
`11 ....... divided core plate
`11a ...... yoke portion
`11b ..... salient pole
`11c ...... arch portion
`12 ....... divided core holding member
`12a ...... deformable portion
`13 ..... holding member
`13a-13f ................. covering portion
`14 ..... adhesive
`
`[FIG. 2]
`
`FIG. 2
`
`[FIG. 6]
`
`FIG. 6
`
`
`
`
`
`
`[FIG. 3]
`
`FIG. 3
`
`[FIG. 4]
`
`FIG. 4
`
`[FIG. 8]
`
`FIG. 8
`
`
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0007
`
`

`

`
`
`
`
`
`
`Japanese Unexamined Patent Application No. 2000-184635
`
`(7)
`
`
`
`[FIG. 7]
`
`FIG. 7
`
`
`
`[FIG. 5]
`
`FIG. 5
`
`
`[FIG. 9]
`
`FIG. 9
`
`
`
`
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0008
`
`

`

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`Am. Hondav. IV II - IPR2018-00619
`PETHONDA_1007-0009
`
`Am. Honda v. IV II - IPR2018-00619
`PET_HONDA_1007-0009
`
`

`

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