Patent ID: 8261571

Claim:
A multifunctional ventilating fan, comprising a machine body, a panel provided with an air inlet and an air outlet, wherein the machine body includes a first area, a second area, and a third area separated by several partition plates; and wherein the first area is provided therein with a first heat exchanger and a ventilating blower, an exhaust port of the ventilating blower is communicated with the outdoor; the second area is provided therein with a second heat exchanger and a circulating blower; the third area is provided with therein a compressor; the air inlet of the panel is communicated with the first area to form a first air path; the air inlet of the panel, the first area, the second area and the air outlet of the panel are communicated in turn to form a second air path; a first valve is provided in the second air path for isolating the first area so that a third air path is formed by the air inlet of the panel, the second area and the air outlet of the panel communicated in turn.