Capacitor unit and electronic device
A capacitor unit includes a plurality of capacitor elements and one or more heat transfer members located adjacent to at least one capacitor element of the plurality of capacitor elements. The one or more heat transfer members internally dissipate heat received from at least one capacitor element of the plurality of capacitor elements.
1 . An electronic device, comprising:
a capacitor unit comprising:
a plurality of capacitor elements arranged in a row with main surfaces thereof facing one another;
one or more heat transfer members located adjacent to at least one capacitor element of the plurality of capacitor elements and configured to internally dissipate heat received from the at least one capacitor element of the plurality of capacitor elements;
a first busbar extending in a direction in which the plurality of capacitor elements are arranged, and electrically connected to positive electrodes of the plurality of capacitor elements;
a second busbar extending in the direction in which the plurality of capacitor elements are arranged, and electrically connected to negative electrodes of the plurality of capacitor elements;
a first terminal electrically connected to the positive electrodes of the plurality of capacitive elements;
a second terminal electrically connected to the negative electrodes of the plurality of capacitive elements; and
a heat receiving block thermally connected to the one or more heat transfer members;
a power converter to convert power supplied from a power supply through the capacitor unit to power to be supplied to a load and output the power resulting from conversion;
a housing accommodating the capacitor unit and the power converter; and
a power converter cooler to dissipate heat transferred from the power converter to air outside the housing,
wherein portions of the one or more heat transfer members extend through the heat-receiving block in a direction orthogonal to the direction in which the plurality of capacitor elements are arranged, and dissipate heat transferred from the at least one capacitor element of the plurality of capacitor elements to the air outside the housing,
the heat-receiving block included in the capacitor unit closes a first opening in the housing with portions of the one or more heat transfer members exposed outside the housing through the first opening, and
the power converter cooler closes a second opening on a surface different from the surface on which the first opening is formed with a portion of the power converter cooler being exposed outside the housing through the second opening.
2 . An electronic device, comprising:
a capacitor unit comprising:
a plurality of capacitor elements arranged in a row with main surfaces thereof facing one another;
one or more heat transfer members located adjacent to at least one capacitor element of the plurality of capacitor elements and configured to internally dissipate heat received from the at least one capacitor element of the plurality of capacitor elements;
a first busbar extending in a direction in which the plurality of capacitor elements are arranged, and electrically connected to positive electrodes of the plurality of capacitor elements;
a second busbar extending in the direction in which the plurality of capacitor elements are arranged, and electrically connected to negative electrodes of the plurality of capacitor elements:
a first terminal electrically connected to the positive electrodes of the plurality of capacitive elements;
a second terminal electrically connected to the negative electrodes of the plurality of capacitive elements; and
a heat receiving block thermally connected to the one or more heat transfer members;
a power converter to convert power supplied from a power supply through the capacitor unit to power to be supplied to a load and output the power resulting from conversion;
a housing accommodating the capacitor unit and the power converter;
a power converter cooler to dissipate heat transferred from the power converter to air outside the housing; and
a partition dividing an internal space of the housing into a first space and a second space, the first space accommodating the capacitor unit and the power converter and suppressing air flowing in from outside the housing, the second space allowing air flowing in from outside the housing,
wherein portions of the one or more heat transfer members extend through the heat-receiving block in a direction orthogonal to the direction in which the plurality of capacitor elements are arranged, and dissipate heat transferred from the at least one capacitor element of the plurality of capacitor elements to the air outside the housing,
the heat-receiving block included in the capacitor unit closes an opening in the partition, with a portion of a cooler being exposed to the second space through the opening, the cooler being formed with portions of the one or more heat transfer members extending through the heat-receiving block, and
the power converter cooler closes an opening in the housing with a portion of the power converter cooler being exposed outside the housing through the opening.