Patent ID: 8248797

Claim:
An electrical control cabinet, comprising: a casing comprising a first receiving portion, a second receiving portion and a third receiving portion, the third receiving portion formed on one side of the first receiving portion and the second receiving portion; at least one first heat generating member received in the first receiving portion; at least one second heat generating member received in the second receiving portion; and a heat exchanger received in the third receiving portion and fixed on a side wall of the first receiving portion; wherein the first receiving portion dissipates heat out of the casing through the heat exchanger, and the second receiving portion communicates to an exterior of the casing; the heat exchanger comprises at least one first vent, at least one second vent, at least one third vent, and at least one tube assembled within the heat exchanger; each of the at least one first vent and the at least one second vent is interconnected with the first receiving portion, the at least one first vent and the at least one second vent are connected together via the at least one tube for circulating air in the first receiving portion; the at least one third vent communicates with the exterior of the casing for absorbing air into the at least one tube.