公开(公告)号：US20240360967A1

公开(公告)日：2024-10-31

申请号：US18291084

申请日：2022-07-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideaki ABE ,  Kenji OKADA

IPC: F21V14/08 ,  F21S9/03 ,  F21V5/04 ,  F21V11/18

CPC classification number: F21S10/00 ,  F21S10/007

Abstract: A filter apparatus is a filter apparatus that transmits light emitted by a light source (a lighting apparatus), and the filter apparatus includes a simulated object that receives the light emitted by the light source, a driving device that mechanically moves the simulated object, and a first lens that transmits the light emitted by the light source and having passed through the simulated object. The filter apparatus projects, onto an illumination surface, a projection image of fluctuation of light and shadow formed by the light emitted by the light source and having passed through the simulated object and the first lens.

公开(公告)号：US20240079928A1

公开(公告)日：2024-03-07

申请号：US18272968

申请日：2021-01-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsumasa MIZUNO ,  Kenji OKADA ,  Hideki TAMURA ,  Yuya AKO

IPC: H02K7/14 ,  H02K1/02 ,  H02K1/16 ,  H02K1/2706 ,  H02K1/28

CPC classification number: H02K7/14 ,  H02K1/02 ,  H02K1/16 ,  H02K1/2706 ,  H02K1/28

Abstract: An electric tool includes a motor. The motor includes a stator and a rotor. The rotor rotates with respect to the stator. At least one of the stator or the rotor includes a core (stator core or rotor core) that includes an oriented steel sheet.

公开(公告)号：US20240097518A1

公开(公告)日：2024-03-21

申请号：US18274755

申请日：2021-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideki TAMURA ,  Mitsumasa MIZUNO ,  Yuya AKO ,  Kenji OKADA

IPC: H02K3/38 ,  H02K3/34 ,  H02K15/02

CPC classification number: H02K3/38 ,  H02K3/345 ,  H02K15/022 ,  H02K15/026

Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter, a teeth portion protruding from an inner peripheral surface of the yoke portion, and an insulating portion being electrically insulating and covering a surface of the teeth portion. Each of the plurality of insulation members includes a pair of insulating plates. Each of the pair of insulating plates has a width greater than a width of the teeth portion, and the pair of insulating plates are arranged to face each other across the teeth portion.

公开(公告)号：US20220123610A1

公开(公告)日：2022-04-21

申请号：US17428198

申请日：2019-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koichiro ESAKA ,  Akito NAKAMURA ,  Kenji OKADA ,  Mitsumasa MIZUNO

IPC: H02K1/18 ,  H02K3/38 ,  H02K3/50 ,  H02K1/17

Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor has an output shaft and rotates with respect to the stator core. The stator core includes: an inner cylindrical portion having a circular cylindrical shape; and a plurality of teeth. Inside the inner cylindrical portion, the rotor is arranged. Each of the plurality of teeth includes a body portion and a tip piece. The body portion protrudes outward from the inner cylindrical portion along a radius of the inner cylindrical portion. The tip piece extends, from a tip part of the body portion, in a direction intersecting with a direction in which the body portion protrudes.

公开(公告)号：US20240243623A1

公开(公告)日：2024-07-18

申请号：US18434702

申请日：2024-02-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koichiro ESAKA ,  Akito NAKAMURA ,  Kenji OKADA ,  Mitsumasa MIZUNO

IPC: H02K1/18 ,  H02K1/17 ,  H02K3/38 ,  H02K3/50

CPC classification number: H02K1/187 ,  H02K1/17 ,  H02K3/38 ,  H02K3/50

Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor has an output shaft and rotates with respect to the stator core. The stator core includes: an inner cylindrical portion having a circular cylindrical shape; and a plurality of teeth. Inside the inner cylindrical portion, the rotor is arranged. Each of the plurality of teeth includes a body portion and a tip piece. The body portion protrudes outward from the inner cylindrical portion along a radius of the inner cylindrical portion. The tip piece extends, from a tip part of the body portion, in a direction intersecting with a direction in which the body portion protrudes.

公开(公告)号：US20240128809A1

公开(公告)日：2024-04-18

申请号：US18277989

申请日：2021-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuya AKO ,  Hideki TAMURA ,  Mitsumasa MIZUNO ,  Kenji OKADA

IPC: H02K1/16 ,  H02K1/2706

CPC classification number: H02K1/165 ,  H02K1/2706

Abstract: A stator includes: a plurality of stator blocks; a plurality of coils; and a supporter supporting the plurality of stator blocks. Each of the plurality of stator blocks includes: a yoke portion located at its outermost perimeter; and a teeth portion protruding from an inner peripheral surface of the yoke portion. The yoke portion has a width dimension along the circumferential direction, and the width dimension of the yoke portion is greater than a width dimension of the teeth portion along the circumferential direction. The supporter is closed in the circumferential direction. The supporter holds the plurality of stator blocks such that the plurality of stator blocks are housed in an interior of the supporter. The supporter has an inner peripheral surface in contact with at least an outer peripheral surface of the yoke portion of each of the plurality of stator blocks.

公开(公告)号：US20240097511A1

公开(公告)日：2024-03-21

申请号：US18274753

申请日：2021-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideki TAMURA ,  Kenji OKADA ,  Mitsumasa MIZUNO ,  Yuya AKO

IPC: H02K1/18 ,  H02K1/16 ,  H02K3/34

CPC classification number: H02K1/185 ,  H02K1/16 ,  H02K3/34

Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter and a teeth portion protruding from an inner peripheral surface of the yoke portion. Each of the plurality of insulation members includes a pair of insulating plates arranged to face each other across the teeth portion. Each of the pair of insulating plates has a width greater than a width of the teeth portion.

公开(公告)号：US20220131434A1

公开(公告)日：2022-04-28

申请号：US17428922

申请日：2019-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsumasa MIZUNO ,  Akito NAKAMURA ,  Koichiro ESAKA ,  Kenji OKADA

IPC: H02K1/276 ,  H02K7/14 ,  H02K21/16

Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor rotates with respect to the stator core. The rotor includes: a rotor core having a circular cylindrical shape; a plurality of permanent magnets; and an output shaft. The output shaft is held inside the rotor core. The plurality of permanent magnets are arranged as spokes around a center of the rotor core.