Battery terminal with current sensor

• US 9,419,267 B2
• Filed: 05/14/2013
• Issued: 08/16/2016
• Est. Priority Date: 11/17/2010
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Uematsu, Satoshi
• Primary Examiner(s): Lee, James
• Application Number:
  US13/894,223
• Publication Number:
  US 20130252050A1
• Time in Patent Office: 1,190 Days
• Field of Search: 429121-347
• US Class Current: 1/1
• CPC Class Codes: G01R 31/364 Battery terminal connectors with integrated measuring arrangements
• CPC Class Codes: H01M 50/552 characterised by their shape
• CPC Class Codes: H01M 50/562 characterised by the material
• 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 13/405 Securing in non-demountable manner, e.g. moulding, riveting
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery terminal with current sensor includes: a battery terminal part that is formed by a conductive metal plate, and that includes a post part to be connected to a battery post of a battery; a current sensor that is integrated with the battery terminal part by a resin molding, and that includes a stud part to be connected to a load; and a sensor part that corresponds to an integrated part of the battery terminal part and the current sensor. The sensor part includes a penetration portion having a hole or slit shape that is formed at a part to be resin-molded of the battery terminal part, and a filling portion that is formed at a resin-molded part of the current sensor and fills the penetration portion.

Claims

1. A battery terminal with current sensor, comprising:

a battery terminal part that is formed by a conductive metal plate, and that includes a post part to be connected to a battery post of a battery;

a current sensor that includes a stud part to be connected to a load, and a first part and a second part extending from the battery terminal part in parallel, wherein the second part extends longer than the first part and an end of the second part further away from the battery terminal part is connected to the stud part;

a resin molding that integrates the battery terminal part and the current sensor; and

a sensor part that corresponds to an integrated part of the battery terminal part and the current sensor, wherein

the sensor part includes a penetration portion constituting a hole or slit shape that is formed within a part of the battery terminal part enveloped by the resin molding, and a filling portion of the resin molding that is formed contiguous with the resin molding and fills the penetration portion.

2. The battery terminal with current sensor according to claim 1, wherein the sensor part and the stud part are arranged side by side in a direction orthogonal to a longitudinal axis of the battery terminal part.

3. The battery terminal with current sensor according to claim 2, wherein the penetration portion and the filling portion are arranged in a predetermined axis passing through the stud part and being parallel with the longitudinal axis of the battery terminal part.

4. The battery terminal with current sensor according to claim 1, wherein the sensor part and the stud part are arranged side by side along a longitudinal axis of the battery terminal part so that the sensor part is positioned closer to the post part than the stud part.

5. The battery terminal with current sensor according to claim 1, wherein

the penetration portion extends in a direction perpendicular to a direction of elongation of the battery terminal part.

6. The battery terminal with current sensor according to claim 5, wherein

the penetration portion extends substantially parallel to a direction in which the battery post of the battery is connected to the post part of the battery terminal part.

7. The battery terminal with current sensor according to claim 1, wherein

the second part of the current sensor extends in a first direction, and

the stud part of the current sensor extends from the end of the second part in a second direction substantially perpendicular to the first direction.

8. The battery terminal with current sensor according to claim 1, wherein

the current sensor further includes a sensor block that has therein a current sensing circuit part and a connector part that is connected to the sensor block and protruded outside from the resin molding.

9. A battery terminal with current sensor, comprising:

a battery terminal part that is formed by a conductive metal plate, and

a current sensor that is integrated with the battery terminal part by a resin molding, wherein

the battery terminal part includes a first plate part and a second plate part, which are opposed to each other by bending the conductive metal plate, a post part that is to be connected to a battery post of a battery in a first direction, and an embrace part that is formed by bending the conductive metal plate at the post part, extends from one of the first plate part and the second plate part, and engages an other one of the first plate part and the second plate part so that the embrace part restrains the first plate part and the second plate part from being widened therebetween, and the battery terminal part further includes a pair of fastening parts formed by bending the conductive metal plate and connecting the first plate part and the second plate part, wherein a fastening bolt is inserted in bolt insertion penetration holes of the pair of the fastening parts from a second direction that is perpendicular to the first direction and fastened with a nut, and

a part to be resin-molded, which corresponds to a part to which the current sensor is integrated by the resin molding, and a connection part, which corresponds to a part of connecting the part to be resin-molded to the first plate part, are formed at one side of the embrace part in the first plate part.

10. The battery terminal with current sensor according to claim 9, wherein the connection part is formed so that a width thereof is gradually widened from the one side of the embrace part toward the part to be resin-molded.

11. The battery terminal with current sensor according to claim 10, wherein the connection part is formed with a reinforcement part.

12. The battery terminal with current sensor according to claim 10, wherein

the first plate part and the second plate part define planar surfaces that are substantially perpendicular to a direction in which the battery post of the battery is connected to the post part of the battery terminal part.

13. The battery terminal with current sensor according to claim 9, wherein

the first plate part and the second plate part are opposed through bending of the conductive metal plate so that the first plate part and the second plate part are spaced apart in a direction in which the battery post of the battery is connected to the post part.