VOLTAGE DETECTION APPARATUS
First Claim
1. A voltage detection apparatus for a battery system including a first battery pack, a second battery pack and a third battery pack, wherein a plurality of unit cells made of secondary batteries are connected to each other in each of the first, the second and the third battery packs, the voltage detection apparatus comprising:
- a first circuit board that is provided on the first battery pack and that includes;
a first voltage detection portion which detects a voltage of the first battery pack;
a control portion which controls the first voltage detection portion; and
a first insulation device which connects the first voltage detection portion with the control portion;
a second circuit board that is provided on the second battery pack and that includes;
a second voltage detection portion which detects a voltage of the second battery pack; and
a second insulation device which connects the second voltage detection portion with the control portion; and
a third circuit board that is provided on a third battery pack and that includes a third voltage detection portion which is connected in series with the second voltage detection portion and which detects a voltage of the third battery pack,wherein the control portion controls the second voltage detection portion and the third voltage detection portion.
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Accused Products
Abstract
A voltage detection apparatus includes first to third circuit boards are provided on first to third battery packs of a battery system respectively. The first circuit board includes a first voltage detection portion detecting a voltage of the first battery pack, a control portion controlling the first voltage detection portion, and a first insulation device which connecting the first voltage detection portion with the control portion. The second circuit board includes a second voltage detection portion detecting a voltage of the second battery pack, and a second insulation device connecting the second voltage detection portion with the control portion. The third circuit board includes a third voltage detection portion connected in series with the second voltage detection portion and detecting a voltage of the third battery pack. The control portion controls the second and third voltage detection portions.
57 Citations
3 Claims
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1. A voltage detection apparatus for a battery system including a first battery pack, a second battery pack and a third battery pack, wherein a plurality of unit cells made of secondary batteries are connected to each other in each of the first, the second and the third battery packs, the voltage detection apparatus comprising:
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a first circuit board that is provided on the first battery pack and that includes; a first voltage detection portion which detects a voltage of the first battery pack; a control portion which controls the first voltage detection portion; and a first insulation device which connects the first voltage detection portion with the control portion; a second circuit board that is provided on the second battery pack and that includes; a second voltage detection portion which detects a voltage of the second battery pack; and a second insulation device which connects the second voltage detection portion with the control portion; and a third circuit board that is provided on a third battery pack and that includes a third voltage detection portion which is connected in series with the second voltage detection portion and which detects a voltage of the third battery pack, wherein the control portion controls the second voltage detection portion and the third voltage detection portion. - View Dependent Claims (2, 3)
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Specification