BUS BAR MODULE AND METHOD FOR PRODUCING BUS BAR MODULE

• US 20170110705A1
• Filed: 12/28/2016
• Published: 04/20/2017
• Est. Priority Date: 07/18/2014
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: TOSAYA, Yuki, KONDO, Hiroki
• Granted Patent: US 10,431,801 B2
• Time in Patent Office: Days
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/507 comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A bus bar module includes: a plurality of linear conductors disposed in parallel at predetermined intervals; a belt-form flat conductor disposed adjacent to the linear conductors and extending in an axial direction of the linear conductors; and an insulating resin portion that integrally covers outer peripheral portions of the plurality of linear conductors and one side edge portion of the flat conductor, the one side edge portion being adjacent to the linear conductors. A tensile strength of the flat conductor and the insulating resin portion is not less than 50 N/mm².

Claims

1. A bus bar module comprising:

a plurality of linear conductors disposed in parallel at predetermined intervals;

a belt-form flat conductor disposed adjacent to the linear conductors and extending in an axial direction of the linear conductors; and

an insulating resin portion that integrally covers outer peripheral portions of the plurality of linear conductors and one side edge portion of the flat conductor, the one side edge portion being adjacent to the linear conductors,

wherein a tensile strength of the flat conductor and the insulating resin portion is not less than 50 N/mm².

2. The bus bar module according to claim 1,

wherein the flat conductor has a plurality of through holes formed in the one side edge portion at predetermined intervals along the axial direction of the linear conductors, and

wherein the one side edge portion is covered with the insulating resin portion over an area comprising the through holes.

3. The bus bar module according to claim 2,

wherein a tensile strength of the flat conductor and the insulating resin portion at the through holes as a first reference point is not less than a tensile strength of the flat conductor and the insulating resin portion at a point closer to a side edge than the through holes as a second reference point, and

wherein the tensile strength of the flat conductor and the insulating resin portion at the second reference point is higher than a tensile strength of the insulating resin portion between the flat conductor and the linear conductors.

4. The bus bar module according to claim 2,

wherein a dripping amount of the insulating resin portion through the through holes is set within a range of not less than 0.2 mm and not more than 4 mm.

5. The bus bar module according to claim 1,

wherein the flat conductor has a positioning reference line formed in a direction in which the flat conductor extends.

6. A method for producing a bus bar module comprising:

disposing a plurality of linear conductors in parallel at predetermined intervals, and disposing a belt-form flat conductor in parallel with and adjacent to the linear conductors; and

performing extrusion molding by using a resin material having a melt flow rate of not less than 20 g/10 min and not more than 2000 g/10 min to integrally cover outer peripheral portions of the plurality of linear conductors and one side edge portion of the flat conductor with the resin material, the one side edge portion being adjacent to the linear conductors.

7. The method for producing the bus bar module according to claim 6,

wherein prior to the performing extrusion molding, a plurality of through holes are formed in the one side edge portion of the flat conductor at predetermined intervals in a direction in which the flat conductor extends.

8. The method for producing the bus bar module according to claim 6,

wherein the resin material used for the extrusion molding has a melt flow rate of not less than 20 g/10 min and not more than 500 g/10 min.

9. The method for producing the bus bar module according to claim 6,

wherein the performing extrusion molding comprises forming a mark on the flat conductor by a mold to form a positioning reference line in the direction in which the flat conductor extends.

10. A method for producing a bus bar module comprising:

disposing a plurality of linear conductors in parallel at predetermined intervals, and disposing a belt-form flat conductor in parallel with and adjacent to the linear conductors; and

performing press molding by using a resin material having a melt flow rate of not less than 20 g/10 min and not more than 2000 g/10 min to integrally cover outer peripheral portions of the plurality of linear conductors and one side edge portion of the flat conductor with the resin material, the one side edge portion being adjacent to the linear conductors.