公开(公告)号：US11789044B2

公开(公告)日：2023-10-17

申请号：US17375837

申请日：2021-07-14

Applicant: SUNCALL CORPORATION

Inventor： Jun Matsuda ,  Akio Mugishima

IPC: G01R19/00 ,  H01C13/02

CPC classification number: G01R19/0092 ,  H01C13/02

Abstract: A current detection device has a first base material, a second base material, and a third base material that are coated with insulation and connected between a three-phase inverter and a motor. The first base material is disposed on the upper surface of the third base material in close contact therewith and comprises, in a section which is not coated with insulation, a first resistor and a first measurement terminal which are fixed atop the first base material. The second base material is disposed on the lower surface of the third base material in close contact therewith and comprises, in a section which is not coated with insulation, a second resistor and second measurement terminal which are fixed atop the second base material.

公开(公告)号：US20220254551A1

公开(公告)日：2022-08-11

申请号：US17730543

申请日：2022-04-27

Applicant: SUNCALL CORPORATION

Inventor： Yuu Moriyama ,  Kenji Murakami ,  Akio Mugishima

IPC: H01C1/148 ,  H01C1/14 ,  H01C1/144 ,  G01R1/20

Abstract: A shunt resistor having improved temperature characteristics has a resistive body, a pair of base materials integrally formed on the resistive body across the resistive body, and measurement terminals fixed onto the base materials. The base materials have a plurality of cutout portions along a longitudinal direction of the base materials, wherein the plurality of cutout portions do not communicate with each other and are provided in a stepped manner.

公开(公告)号：US20240012032A1

公开(公告)日：2024-01-11

申请号：US18455548

申请日：2023-08-24

Applicant: Suncall Corporation

Inventor： Akio Mugishima ,  Kenji Murakami

IPC: G01R15/20 ,  G01R19/00

CPC classification number: G01R15/20 ,  G01R19/0092

Abstract: A current sensor that can reduce an installation area and improve measurement accuracy has a busbar through which current to be measured flows and a magnetic sensor that detects a magnetic field component generated by the current flowing through the busbar. The busbar can have left and right through-holes which can change the flow of the current to be measured. The magnetic sensor can be mounted on the upper surface of the busbar and can be screw-fixed to the upper surface of the busbar using the left and right through-holes.

公开(公告)号：US12080452B2

公开(公告)日：2024-09-03

申请号：US17730543

申请日：2022-04-27

Applicant: SUNCALL CORPORATION

Inventor： Yuu Moriyama ,  Kenji Murakami ,  Akio Mugishima

IPC: H01C1/148 ,  G01R1/20 ,  H01C1/14 ,  H01C1/144

CPC classification number: H01C1/148 ,  G01R1/203 ,  H01C1/1406 ,  H01C1/144

Abstract: A shunt resistor having improved temperature characteristics has a resistive body, a pair of base materials integrally formed on the resistive body across the resistive body, and measurement terminals fixed onto the base materials. The base materials have a plurality of cutout portions along a longitudinal direction of the base materials, wherein the plurality of cutout portions do not communicate with each other and are provided in a stepped manner.