Charging device

Patent metadata

Field	Value
Publication number	US-9694703-B2
Application number	US-201314124356-A
Country	US
Kind code	B2
Filing date	Oct 15, 2013
Priority date	Aug 2, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A charging device includes: a housing; a heat radiation member storage room to which a part of electric parts in a power conversion unit is attached, and which houses a heat sink including fins; an electric parts storage room housing other electric parts of the power conversion unit and a control unit; a first suction port introducing a gas into the heat radiation member storage room and a first exhaust port discharging the gas; a second suction port introducing the gas into the electric parts storage room and a second exhaust port discharging the gas; a first fan introducing the gas into the heat radiation member storage room and a second fan introducing the gas into the electric parts storage room; a suction-side waterproof cover that covers the first and second ports; and an exhaust-side waterproof cover covering the first and second exhaust ports.

First claim

The invention claimed is:

1. A charging device for charging a battery, the charging device comprising:
a housing including a bottom part, an upper part facing the bottom part, a first side part, and at least a second side part, the first side part and at least second side part connecting the upper part and the bottom part, and housing a power conversion unit configured to convert alternating-current power into direct-current power to supply the direct-current power to the battery, and a control unit configured to control the power conversion unit;
a heat radiation member storage room in which a part of a plurality of electric parts included in the power conversion unit is attached, the heat radiation member storage room housing a heat radiation member including a plurality of fins;
an electric parts storage room housing other electric parts of the power conversion unit and the control unit;
a first suction port provided in the housing and configured to introduce a gas into the heat radiation member storage room, and a first exhaust port provided in the housing and configured to exhaust the introduced gas;
a second suction port provided in the housing and configured to introduce the gas into the electric parts storage room, and a second exhaust port provided in the housing and configured to exhaust the introduced gas; and
a first fan configured to introduce the gas into the heat radiation member storage room, and a second fan configured to introduce the gas into the electric parts storage room,
wherein the first suction port, and the second suction port respectively open to the first side part, the first exhaust port, and the second exhaust port respectively open to the at least second side part, the second suction port opening to an upper part side of the first side part, and the second exhaust port opens to an upper part side of the at least second side part;
wherein the plurality of fins included in the heat radiation member extends toward a direction into which the gas flows, and
the charging device further includes:
a suction-side mesh provided at a suction side of the first suction port, and having a smaller opening than a pitch between the adjacent fins;
a suction-side partition member provided between a suction-side waterproof cover and the housing, the suction-side water proof cover covering the first suction port, the second suction port and the housing, and the suction side partition member partitioning the first suction port from the second suction port and introducing the gas that passed through the suction side mesh into the first suction port;
an exhaust-side mesh provided at an outlet side of the first exhaust port, and having a smaller opening than a pitch between the adjacent fins; and
an exhaust-side partition member provided between an exhaust-side waterproof cover and the housing, the exhaust-side waterproof cover covering the first exhaust port and the second exhaust port, and the exhaust-side partition member partitioning the first exhaust port from the second exhaust port and introducing the gas having discharged through the first exhaust port into the exhaust-side mesh.

2. The charging device according to claim 1 , further comprising:
an attachable/detachable suction-side filter provided at the second suction port; and
an attachable/detachable exhaust-side filter provided at the second exhaust port.

3. The charging device according to claim 1 , wherein end parts of the fins included in the heat radiation member face the bottom part, and a position at which the part of the electric parts is attached to the heat radiation member storage room at an upper part side thereof.

4. The charging device according to claim 1 , wherein the other electric parts are arranged in an interior of the electric parts storage room with a predetermined pitch between the other electric parts and the bottom part.

5. The charging device according to claim 1 , wherein the housing includes an in-housing partition member that partitions the electric parts storage room into an upper part side of the housing and a lower part side of the housing, and
the second suction port and the second exhaust port open to both of the upper part side of the housing and the lower part side of the housing of the electric parts storage room, the in-housing partition member being disposed between the upper part side of the housing and the lower part side of the housing.

6. The charging device according to claim 1 , wherein the first fan is provided at the first exhaust port and sucks the gas from the heat radiation member storage room, and the second fan is provided at the second exhaust port and sucks the gas from the electric parts storage room.

7. The charging device according to claim 5 , wherein the second fan introduces the gas into both of the upper part side of the housing and the lower part side of the housing of the electric parts storage room.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Shinada Youhei

Classifications

• B60L53/302

  Cooling of charging equipment · CPC title

• H02J7/485

  with provisions for charging different types of batteries · CPC title

• H02J7/445

  in response to measured battery parameters, e.g. voltage, current or temperature profile · CPC title

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H05K7/20909 Primary

  Forced ventilation, e.g. on heat dissipaters coupled to components · CPC title