Patent ID: 7988031

Claim:
A heater for blowing hot air in a reflow furnace comprising a box-shaped body having a first end and a second end, a suction chamber disposed inside the body and two discharge chambers disposed inside the body on opposite sides of the suction chamber, an inlet at the first end of the body communicating with the suction chamber and two outlets at the first end of the body each communicating with one of the discharge chambers, a total area of the outlets being larger than an area of the inlet, two partitions disposed on opposite sides of the suction chamber and each separating the suction chamber from one of the discharge chambers and sloping towards each other so that the flow area of the suction chamber decreases towards the inlet, openings which each connect the suction chamber with one of the discharge chambers, a blower installed in the body, and an electric heater disposed in the body downstream of the suction inlet, each discharge chamber having a perforated plate having discharge holes formed therein provided at the first end of the body.