Cooling device for battery pack and rechargeable battery
First Claim
1. A cooling device for a battery pack including a plurality of prismatic rechargeable batteries arranged in parallel with a ventilation space being provided therebetween, the cooling device comprising:
- a blower device that sends cooling air from above the battery pack downwardly through the ventilation space to a lower end of the batteries; and
a control device that controls the blower device in accordance with a temperature detected by a temperature detection sensor attached to the lower end of at least one of the rechargeable batteries.
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Accused Products
Abstract
In a battery pack including a plurality of prismatic rechargeable batteries arranged in parallel with ventilation spaces being provided therebetween, the battery pack is constituted so that cooling air is downwardly sent from above the battery pack through the ventilation spaces. In accordance with a temperature detected with a temperature detection sensor attached to the lower end of the rechargeable battery, a blower fan is controlled by a control section. Moreover, a sensor placement concave, which is separated from a space inside a battery case through a thin partition wall, is provided on a bottom wall of the battery case of the rechargeable battery. The temperature detection sensor is placed in the sensor placement concave so as to be pressed against the partition wall.
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Citations
10 Claims
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1. A cooling device for a battery pack including a plurality of prismatic rechargeable batteries arranged in parallel with a ventilation space being provided therebetween, the cooling device comprising:
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a blower device that sends cooling air from above the battery pack downwardly through the ventilation space to a lower end of the batteries; and
a control device that controls the blower device in accordance with a temperature detected by a temperature detection sensor attached to the lower end of at least one of the rechargeable batteries.
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2. A rechargeable battery comprising:
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a sealed prismatic battery case that accommodates an electricity generating element, the battery case having a sensor placement depression on a bottom wall of the battery case through a partition wall thinner than the bottom wall so as to be separated from a space inside the battery case; and
a temperature detection sensor provided in the sensor placement concave and pressed against the partition wall. - View Dependent Claims (3, 4, 5)
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6. A battery system for rechargeable, prismatic batteries of a battery pack, the battery system comprising:
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a temperature detection sensor positioned at an end of a battery of a battery pack that is opposite to an end of the battery pack in which a blower device is positioned; and
a control device that controls the blower device, in accordance with a temperature detected by the temperature detection sensor, to send air through a ventilation space, the air being directed through the ventilation space from the end of the battery pack in which the blower device is positioned to the end of the battery pack at which the temperature detection sensor is positioned. - View Dependent Claims (7, 8, 9, 10)
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Specification