Patent ID: 9568245
Date: 2017-02-14
CPC Classifications: F27B,F27D

Claim:
1. A heating furnace, comprising: a housing; a first rack disposed in the housing; a chamber disposed in the housing and located at a side of the first rack, the chamber comprising an inlet, a first sidewall, and a second sidewall, wherein the first sidewall is adjacent to the first rack, the first sidewall has a plurality of vents, the first sidewall and the second sidewall are disposed to face each other, a width is spaced between the first sidewall and the second sidewall, and the width is larger than or equal to 200 mm; two fans disposed in the housing for respectively generating two airflows to the inlet; a second rack disposed in the housing, wherein the second sidewall is adjacent to the second rack, the second sidewall has vents similar to the vents of the first sidewall, and the fans are respectively disposed over the first rack and the second rack; and a guide plate disposed between the fans and having two guiding surfaces, wherein the airflow generated by each of the fans flows toward the corresponding guiding surface and is guided to the chamber.