Battery monitoring unit
AssigneeYazaki Corporation
InventorsTakao Ota, Kazuya Harakawa, Yoshiaki Ichikawa, Yoshiaki Nakayama
Life of this patent
Estimating the term…
Abstract
A battery monitoring unit includes a plurality of voltage detection lines, a flexible printed circuit board extending in a stuck direction of single batteries, an electronic circuit connected to one end portions of the plurality of the voltage detection lines so as to detect voltage of each of the single batteries and mounted on the flexible printed circuit board, a plurality of busbar fixing portions formed integrally with the flexible printed circuit board and to which the plurality of the busbars are fixed respectively, and communication lines disposed in the flexible printed circuit board so as to connect between the electronic circuit and a battery ECU.
Claims6
A battery monitoring unit comprising:
- a plurality of voltage detection lines;
- a plurality of busbars coupled by the plurality of the voltage detection lines;
- a unitary flexible printed circuit board extending in a stuck direction of single batteries;
- an electronic circuit connected to one end portions of the plurality of the voltage detection lines so as to detect voltage of each of the single batteries and mounted on the flexible printed circuit board;
- a plurality of busbar fixing portions formed integrally with the flexible printed circuit board and to which the plurality of the busbars are fixed respectively;
- and
- communication lines disposed in the flexible printed circuit board so as to connect between the electronic circuit and a battery ECU,
- wherein the other end portions of the plurality of the voltage detection lines are respectively connected to the plurality of the busbars disposed in the stuck direction so as to electrically connect the plurality of the single batteries of a battery assembly,
- wherein the plurality of the voltage detection lines are disposed in the flexible printed circuit board,
- wherein the busbar fixing portions are configured to be slanted or bent to facilitate displacement of the busbars relative to the flexible printed circuit board following terminals of the single batteries,
- wherein the plurality of the busbar fixing portions include flexible bridge portions between adjacent ones of a plurality of opening portions opening at predetermined interval in a row in the stuck direction,
- wherein each of the plurality of the opening portions has an opening width wider than a transverse-direction width of each of the plurality of the busbars, in a direction which is perpendicular to the stuck direction and a thickness direction of each of the plurality of the busbars, and
- wherein the plurality of the busbars are soldered and fixed to lands positioned and extending on the flexible bridge portions from the other end portions of the plurality of the voltage detection lines respectively.
A battery monitoring unit comprising:
- a plurality of voltage detection lines;
- a plurality of busbars coupled by the plurality of the voltage detection lines;
- a flexible printed circuit board extending in a stuck direction of single batteries;
- an electronic circuit connected to one end portions of the plurality of the voltage detection lines so as to detect voltage of each of the single batteries and mounted on the flexible printed circuit board;
- a plurality of busbar fixing portions formed integrally with the flexible printed circuit board and to which the plurality of the busbars are fixed respectively;
- and
- communication lines disposed in the flexible printed circuit board so as to connect between the electronic circuit and a battery ECU,
- wherein the other end portions of the plurality of the voltage detection lines are respectively connected to the plurality of the busbars disposed in the stuck direction so as to electrically connect the plurality of the single batteries of a battery assembly,
- wherein the plurality of the voltage detection lines are disposed in the flexible printed circuit board,
- wherein the plurality of the busbar fixing portions include flexible bridge portions between adjacent ones of a plurality of opening portions opening at predetermined interval in a row in the stuck direction, and
- wherein the plurality of the busbars are soldered and fixed to lands positioned and extending on the flexible bridge portions from the other end portions of the plurality of the voltage detection lines respectively.
Dependencies are inferred from the claim text.