PROTECTIVE CIRCUIT FOR A RECHARGEABLE BATTERY PACK
First Claim
1. A protective circuit for an arrangement having a plurality of individual cells in a battery pack, wherein a predetermined number of individual cells are connected in series via cell connectors so as to form a cell row and at least two cell rows are arranged in parallel, each of the individual cells of one cell row having a position which corresponds to the position of a corresponding one of the individual cells in the other cell row, each of the cell connectors of one cell row having a position therein which corresponds to the position of a corresponding one of the cell connectors in the other cell row, a plurality of compensation lines electrically interconnecting corresponding ones of the cell connectors of the different rows, the cell connectors being at respective potentials (Unr, Unl), the protective circuit comprising:
- an evaluation unit;
a circuit device configured to detect the potential (Unr) of the cell connector connected to the compensation line of one of the cell rows and the potential (Unl) of the corresponding cell connector connected to said one compensation line of the other parallel cell row; and
,said circuit device being further configured to output the detected potentials (Unl, Unr) to said evaluation unit.
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Accused Products
Abstract
A protective circuit for an arrangement includes a multiplicity of individual cells in a rechargeable battery pack. A predefined number of individual cells are connected in series in a cell row and at least two cell rows are mutually parallel, and at least one cell connector situated between the individual cells at a location of one cell row is electrically connected via a compensation line to the cell connector situated at an identical location of the parallel cell row, and the potential of the cell connector connected to the compensation line at one location of one cell row and the potential of the cell connector electrically connected to the compensation line at the same location of the parallel cell row are detected and the detected potentials are fed to an evaluation unit.
9 Citations
18 Claims
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1. A protective circuit for an arrangement having a plurality of individual cells in a battery pack, wherein a predetermined number of individual cells are connected in series via cell connectors so as to form a cell row and at least two cell rows are arranged in parallel, each of the individual cells of one cell row having a position which corresponds to the position of a corresponding one of the individual cells in the other cell row, each of the cell connectors of one cell row having a position therein which corresponds to the position of a corresponding one of the cell connectors in the other cell row, a plurality of compensation lines electrically interconnecting corresponding ones of the cell connectors of the different rows, the cell connectors being at respective potentials (Unr, Unl), the protective circuit comprising:
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an evaluation unit; a circuit device configured to detect the potential (Unr) of the cell connector connected to the compensation line of one of the cell rows and the potential (Unl) of the corresponding cell connector connected to said one compensation line of the other parallel cell row; and
,said circuit device being further configured to output the detected potentials (Unl, Unr) to said evaluation unit. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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7. A protective circuit for an arrangement:
- having a plurality of individual cells in a battery pack, wherein at least one individual cell forms a cell block, a predetermined number of cell blocks are connected in series via cell connectors so as to form a cell row and at least two cell rows are arranged in parallel, the cell connectors form electrical connecting terminals of the cell blocks, each of the cell blocks of one cell row having a position which corresponds to the position of a corresponding one of the cell blocks in the other cell row, each of the cell connectors of one cell row having a position therein which corresponds to the position of a corresponding one of the cell connectors in the other cell row, a plurality of compensation lines electrically interconnecting corresponding ones of the cell connectors of the different rows, the cell connectors being at respective potentials (Unr, Unl), the protective circuit comprising;
an evaluation unit; a circuit device configured to detect the potential (Unr) of the cell connector connected to the compensation line of one of the cell rows and the potential (Unl) of the corresponding cell connector connected to said one compensation line of the other parallel cell row; and
,said circuit device being further configured to output the detected potentials (Unl, Unr) to said evaluation unit. - View Dependent Claims (8)
- having a plurality of individual cells in a battery pack, wherein at least one individual cell forms a cell block, a predetermined number of cell blocks are connected in series via cell connectors so as to form a cell row and at least two cell rows are arranged in parallel, the cell connectors form electrical connecting terminals of the cell blocks, each of the cell blocks of one cell row having a position which corresponds to the position of a corresponding one of the cell blocks in the other cell row, each of the cell connectors of one cell row having a position therein which corresponds to the position of a corresponding one of the cell connectors in the other cell row, a plurality of compensation lines electrically interconnecting corresponding ones of the cell connectors of the different rows, the cell connectors being at respective potentials (Unr, Unl), the protective circuit comprising;
Specification