公开(公告)号：US20250167574A1

公开(公告)日：2025-05-22

申请号：US18836101

申请日：2022-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi HIGASHIDE ,  Katsunori ATAGO ,  Youichi KAGEYAMA ,  Mitsuhiro MATSUO ,  Yugo SETSU ,  Hiroki NISHINAKA ,  Shinichi TANIDA ,  Kazuo TAKENAKA

IPC: H02J7/00

Abstract: A charging and discharging device includes: step-up/step-down converter including reference terminals, a first and second input/output terminals; and a power storage element connected between one of the reference terminals and the second input/output terminal, wherein the step-up/step-down converter is a polarity inversion type bidirectional DC-DC converter which charges the power storage element by inverting a polarity of a first DC voltage input from the first input/output terminal using a potential of the reference terminal as a reference potential and stepping up/down the first DC voltage to output a second DC voltage from the second input/output terminal, and discharges the power storage element by inverting a polarity of a third DC voltage input from the second input/output terminal using a potential of the reference terminal as a reference potential and stepping up/down the third DC voltage to output a fourth DC voltage from the first input and input/output terminal.

公开(公告)号：US20180019047A1

公开(公告)日：2018-01-18

申请号：US15541971

申请日：2016-01-08

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Mitsuhiro MATSUO ,  Hiroshi AKAMATSU

IPC: H01F27/26 ,  H01F27/28 ,  H01F17/06 ,  H05K7/20 ,  H01F27/30 ,  H01F3/14

CPC classification number: H01F27/26 ,  H01F3/14 ,  H01F17/062 ,  H01F27/06 ,  H01F27/2823 ,  H01F27/30 ,  H01F27/306 ,  H05K7/2039

Abstract: A magnetic component unit in the present disclosure includes: a coil component; a heat dissipator which has an engagement fixing portion and a press fixing portion; and a magnetic core fixing portion. The magnetic core fixing portion includes: a holding portion that presses against the coil component; an engaging portion that extends from a first end part of the holding portion toward the heat dissipator and has a turned-back end part; and a pressing portion that extends from a second end part of the holding portion toward the heat dissipator and has an end part bent into an L-shape. The engagement fixing portion has a U-shape, and one end and the other end of the engagement fixing portion are connected to a peripheral edge portion of the heat dissipator. The press fixing portion has a columnar shape and is provided vertically protruding from the heat dissipator.