BATTERY TERMINAL UNIT WITH CURRENT SENSOR

• US 20130040177A1
• Filed: 04/28/2011
• Published: 02/14/2013
• Est. Priority Date: 04/30/2010
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Hashio, Shinichi, Mochizuki, Toshirou
• Granted Patent: US 10,193,127 B2
• Time in Patent Office: Days
• US Class Current: 429/93
• CPC Class Codes: G01R 31/364 Battery terminal connectors with integrated measuring arrangements
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 50/567 by fixing means, e.g. screws, rivets or bolts
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: H01R 11/287 Intermediate parts between battery post and cable end piece
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery terminal unit with a current sensor includes a bus bar for a battery terminal and a receiving portion. The bus bar includes an attachment part attached to a battery post, an extension part extended from the attachment part, and a connection part which continues to the extension part and is configured to connect a wire harness. The receiving portion receives a board on which a magnetic detection element is mounted so that the board is opposed to a surface of the extension part. The attachment part, the extension part and the connection part are integrally formed. The connection part continues to the extension part through an extending portion bent from the extension part so as to be positioned laterally to the extension part.

Claims

1. A battery terminal unit with a current sensor, comprising:

a bus bar for a battery terminal, the bus bar including;

an attachment part attached to a battery post;

an extension part extended from the attachment part; and

a connection part which continues to the extension part and is configured to connect a wire harness; and

a receiving portion that receives a board on which a magnetic detection element is mounted so that the board is opposed to a surface of the extension part,

wherein the attachment part, the extension part and the connection part are integrally formed; and

wherein the connection part continues to the extension part through an extending portion bent from the extension part so as to be positioned laterally to the extension part.

2. The battery terminal unit according to claim 1, wherein the attachment part includes:

a cylindrical part having a slit; and

opposed walls extended from both ends of the cylindrical part so as to be opposed to each other, the both ends being adjacent to the slit, the opposed walls having through holes respectively,

wherein the opposed walls, the cylindrical part and the extension part are arranged in this order; and

wherein the attachment part pinches the cylindrical part to a battery post by fastening a fastening member inserted into the through holes of the opposed walls with respect to the opposed walls.

3. The battery terminal unit according to claim 1, further comprising:

a shield plate having a U shape,

wherein the extension part has a first face and a second face which is opposite to the first face, wherein the board is attached to the second face;

wherein the shield plate is attached to the first face of the extension part so that both end portions of the shield plate is inserted into the extension part;

wherein the magnetic detection element and the extension part are covered with the shield plate; and

wherein the shield plate is arranged so as to be directed to a battery.

4. The battery terminal unit according to claim 3, wherein a drainage path for draining water drops falling on the shield plate to the outside of the receiving portion is formed in a peripheral wall constructing the receiving portion.

5. The battery terminal unit according to claim 4, wherein the drainage path has at least one of a notch in which a part of an upper portion of the peripheral wall is notched, an elongated slit extending through at a lower portion of the peripheral wall, and a through hole vertically extending and formed on the peripheral wall.