| CPC H05K 7/20909 (2013.01) [H02M 7/003 (2013.01); H02B 1/565 (2013.01)] | 18 Claims |
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1. A power cabinet, comprising a cabinet body and at least two devices arranged in an interior of the cabinet body;
wherein a device in first type is arranged in a main heat-dissipation channel in communication with the cabinet body;
a device in second type is arranged in the main heat-dissipation channel or a secondary heat-dissipation channel which is in communication with the cabinet body;
the main heat-dissipation channel and the secondary heat-dissipation channel share one same outlet, or each of the main heat-dissipation channel and the secondary heat-dissipation channel has at least one outlet,
wherein the device in first type is a device with a heat generation amount exceeding a heat generation threshold;
the main heat-dissipation channel is a direct air-cooling heat-dissipation channel,
wherein the device in second type is arranged in an independent chamber;
the secondary heat-dissipation channel is a heat exchange air-cooling heat-dissipation channel, which comprises a heat exchanger, an external circulation air duct inlet and an external circulation air duct outlet;
the heat exchanger is arranged on one side of the cabinet body and comprises an external circulation air blower and an internal circulation air blower;
the external circulation air duct inlet and the external circulation air duct outlet are both in communication with an external circulation air duct provided by the external circulation air blower;
the device in second type is located in an internal circulation air duct provided by the internal circulation air blower.
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