US 11,953,526 B2Granted

Current sensor

AssigneeDenso Corporation

InventorsAkito Sasaki, Ryosuke Sakai, Hiroaki Miwa, Takeshi Tsukamoto, Hiroshi Nomura, Takuma Esaka, Tatsuaki Sugito

Life of this patent

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Abstract

A current sensor includes a wiring board, a shield, an insulating sensor housing, and a shield adhesive. The wiring board and the shield are accommodated in the sensor housing. The sensor housing has a shield support part to support the shield, and a shield adhesion part. An application surface of the shield adhesion part is further from the shield than a contact surface of the shield support part. The shield is mounted on the contact surface of the shield support part, and the shield adhesive is disposed between the application surface of the shield adhesion part and the shield. The shield and the wiring board are aligned with and spaced from each other in the sensor housing.

Claims10

Dependent claims

A current sensor comprising:

a wiring board that has a magnetoelectric converter thereon, the magnetoelectric converter configured to convert a measurement magnetic field caused by a flow of a measurement current into an electric signal;
a shield that restricts an electromagnetic noise into the magnetoelectric converter;
an insulating sensor housing that accommodates the wiring board and the shield therein;
and
a shield adhesive that bonds the sensor housing and the shield together, wherein
the sensor housing has a shield support part to support the shield, and a shield adhesion part,
the shield support part has a contact surface,
the shield adhesion part has an application surface on which the shield adhesive is disposed,
the application surface of the shield adhesion part is further from the shield than the contact surface of the shield support part,
the shield is mounted on the contact surface of the shield support part, and
the shield adhesive is disposed between the application surface of the shield adhesion part and the shield.

8 more elements

A current sensor comprising:

a wiring board that has a magnetoelectric converter thereon, the magnetoelectric converter configured to convert a measurement magnetic field caused by a flow of a measurement current into an electric signal;
a shield that restricts an electromagnetic noise into the magnetoelectric converter;
an insulating sensor housing that accommodates the wiring board and the shield therein;
and
a board adhesive that bonds the sensor housing and the wiring board together, wherein
the sensor housing has a board support part to support the wiring board, and a board adhesion part,
the board support part has a support surface,
the board adhesion part has a mounting surface on which the board adhesive is disposed,
the mounting surface of the board adhesion part is further from the wiring board than the support surface of the board support part,
the wiring board is mounted on the support surface of the board support part, and
the board adhesive is disposed between the mounting surface of the board adhesion part and the wiring board.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/849,947Filed 27 Jun 2022 · continuation
Priority: JP 2018-05296220 Mar 2018
Published: US 2022/0326283 A113 Oct 2022
Granted: 9 Apr 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G01R 15/205
Using galvano-magnetic devices, e.g. Hall-effect devices , i.e. measuring a magnetic field via the interaction between a current and a magnetic…:…
G01R 15/207
Using galvano-magnetic devices, e.g. Hall-effect devices , i.e. measuring a magnetic field via the interaction between a current and a magnetic…:…
G01R 19/0092
Arrangements for measuring currents or voltages or for indicating presence or sign thereof: measuring current only
G01R
Measuring electric variables

Family

PCT/JP2019/001755Parent of this continuation · filed 22 Jan 2019
Application17/023,568Parent of this continuation · filed 17 Sep 2020
US 2022/0326283 A1Pre-grant publication · published 13 Oct 2022
US 11,397,196 B2Parent of this continuation
US 2021/0003615 A1Published application
US 11,953,526 B2This patent

From the US filing history. Foreign family members aren’t listed.