Electrical equipment battery for vehicles

An electrical equipment battery for vehicles comprising:

• a secondary battery;
• a circuit board mounted with a protection circuit for the secondary battery and a heat generating element that is disposed upon a heat generating element mounting part of the circuit board;
• and
• an outer case that accommodates the circuit board and the secondary battery,
• wherein the outer case has a heat radiation plate made of metal, the heat radiation plate being provided with a heat transfer space defined between the heat radiation plate and the heat generating element mounting part of the circuit board,
• an electrical-insulating and heat-conducting gel, having viscosity that is lowered by stress, is filled in the heat transfer space, wherein heat is transferred from the heat generating element mounting part to the heat radiation plate via the electrical-insulating and heat-conducting gel, and
• the heat radiation plate has a flow-out block partition on an outer side of the heat transfer space, the flow-out block partition configured to suppress the electrical-insulating and heat-conducting gel filled in the heat transfer space from flowing out from the heat transfer space,
• wherein electronic components including the heat generating element are mounted on a front surface of the circuit board, and
• a rear surface of the circuit board is thermally coupled to the heat radiation plate via the electrical-insulating and heat-conducting gel, and
• wherein a pair of the flow-out block partitions are provided on both sides along a length of the heat transfer space but not provided on both edges along a width, less than the length, of the heat transfer space.