Patent ID: 11940173
Assignee: PANASONIC ECOLOGY SYSTEMS GUANGDONG CO., LTD
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A heat exchange device, comprising:
a case, an interior of which is formed into an air-supply inflow space, an exhaust inflow space, an air-supply outflow space and an exhaust outflow space separated from each other, wherein a first extension wall is provided between the air-supply inflow space and the exhaust outflow space; and
a heat exchange unit disposed in the case, and the air-supply inflow space and the air-supply outflow space communicate with each other through the heat exchange unit to form an air-supply air path, and the exhaust inflow space and the exhaust outflow space communicate with each other through the heat exchange unit to form an exhaust air path, wherein the air-supply air path and the exhaust air path exchange heat when passing through the heat exchange unit,
wherein,
the first extension wall is provided with a circulation air port communicating the air-supply inflow space and the exhaust outflow space, wherein the circulation air port may be selectively opened and closed,
the case further comprises:
an air-supply air inlet configured to allow air in a first space to enter the case and communicate with the air-supply inflow space;
an air-supply air outlet configured to allow air entering the case to blow out toward a second space and communicate with the air-supply outflow space;
an air-supply air fan disposed in the air-supply outflow space and configured to guide the air from the air-supply air inlet into the case and blow toward the air-supply air outlet;
an exhaust air inlet configured to allow air in the second space to enter the case and communicate with the exhaust inflow space;
an exhaust air outlet configured to allow the air entering the case to blow out toward the first space and communicate with the exhaust outflow space; and
an exhaust air fan disposed transversely in parallel with the air-supply air fan inside the exhaust outflow space and configured to guide the air from the exhaust air inlet into the case and blow toward the exhaust air outlet; and
the heat exchange device further comprises:
a circulation air path formed by opening the circulation air port and closing the air-supply air inlet and the exhaust air outlet, wherein air blows from the exhaust air inlet to the air-supply air outlet through the circulation air port.