Battery charger capable of efficiently cooling secondary battery in battery pack and charging circuit unit in battery charger
AssigneeHitachi Koki Co., Ltd.
InventorsYuji Kishima, Toshio Mizoguchi
Life of this patent
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Abstract
A battery charger that is configured to charge a battery pack including a secondary battery includes: a housing; and a charging circuit unit disposed in the housing. The housing defines a first air passage in which air flows to cool the secondary battery and a second air passage in which air flows to cool the charging circuit unit. The second air passage is independent from the first air passage.
Claims17
A battery charger configured to charge a battery pack including a secondary battery, the battery charger comprising:
- a housing;
- and
- a charging circuit unit disposed in the housing,
- the housing defining a first air passage in which air flows to cool the secondary battery and a second air passage in which air flows to cool the charging circuit unit, the second air passage being independent from the first air passage.
A battery charger configured to charge a battery pack including a battery pack casing and a secondary battery accommodated in the battery pack casing, the battery pack casing having an inlet port and an outlet port, the battery charger comprising:
- a housing having an intake port and a discharge port and including a connecting part configured to be connected to the battery pack, the connecting part having a communication port configured to be in communication with the outlet port upon connection of the battery pack with the connecting part;
- a charging circuit unit disposed in the housing;
- and
- a fan disposed in the housing and configured to draw air into the housing to generate airflow for cooling the secondary battery and the charging circuit unit,
- the housing defining a first air passage extending from the communication port to the discharge port, and a second air passage extending from the intake port to the discharge port, the second air passage being independent from the first air passage, the secondary battery being cooled by air flowing from the inlet port to the discharge port through the outlet port and the communication port in a state where the battery pack is connected to the connecting part, the charging circuit unit being cooled by air flowing from the intake port to the discharge port.
Dependencies are inferred from the claim text.