Battery pack

A battery pack comprising:

• a plurality of battery cells, each of which comprises a positive terminal and a negative terminal formed on and protruding from one surface, and the plurality of battery cells being arranged such that the positive terminals and the negative terminals are alternately arranged;
• a plurality of bus bars, each of which electrically connects the positive terminal and the negative terminal of the adjacent battery cells;
• an insulating cover which is attachable to the plurality of battery cells and covers the positive terminals and the negative terminals which are connected by the respective bus bars;
• a monitor substrate in which a monitor circuit is mounted to monitor a state of the plurality of battery cells;
• and
• a plurality of detection terminals which are electrically connected to the monitor substrate and electrically connected to the plurality of bus bars, respectively, to detect the state of the battery cell,
• wherein the monitor substrate and the plurality of detection terminals are disposed integrally to an inner surface of the insulating cover,
• wherein the plurality of detection terminals are electrically connected to the plurality of bus bars, respectively, in a state in which the insulating cover is attached to the plurality of battery cells,
• wherein the insulating cover comprises a detection terminal mounting portion at which the plurality of detection terminals are mounted,
• wherein the detection terminal mounting portion is formed such that the detection terminals are disposed immediately above the plurality of bus bars in the state in which the insulating cover is attached to the plurality of battery cells,
• wherein the insulating cover includes a fixing portion that extends from the inner surface and toward the battery cells, and
• wherein the monitor substrate is mounted on the fixing portion and spaced away from the inner surface of the insulating cover.

A battery pack comprising:

• a plurality of battery cells, each of which comprises a positive terminal and a negative terminal formed on and protruding from one surface, and the plurality of battery cells being arranged such that the positive terminals and the negative terminals are alternately arranged;
• a plurality of bus bars, each of which electrically connects the positive terminal and the negative terminal of the adjacent battery cells;
• an insulating cover which is attachable to the plurality of battery cells and covers the positive terminals and the negative terminals which are connected by the respective bus bars;
• a monitor substrate in which a monitor circuit is mounted to monitor a state of the plurality of battery cells;
• and
• a plurality of detection terminals which are electrically connected to the monitor substrate and electrically connected to the plurality of bus bars, respectively, to detect the state of the battery cell,
• wherein the monitor substrate and the plurality of detection terminals are disposed integrally to an inner surface of the insulating cover,
• wherein the plurality of detection terminals are electrically connected to the plurality of bus bars, respectively, in a state in which the insulating cover is attached to the plurality of battery cells,
• wherein the insulating cover comprises a detection terminal mounting portion at which the plurality of detection terminals are mounted,
• wherein the detection terminal mounting portion is formed such that the detection terminals are disposed immediately above the plurality of bus bars in the state in which the insulating cover is attached to the plurality of battery cells,
• wherein the battery pack further comprises a monitor substrate cover which is formed of a conductive metallic material or an insulating resin material, and covers the monitor substrate,
• wherein the monitor substrate cover is located between the battery cells and the monitor substrate, and
• wherein the monitor substrate is located between and spaced away from each of the monitor substrate cover and inner surface of the insulating cover.