Oxygen concentration detection system and reflow oven using the same

Abstract

The present application discloses an oxygen concentration detection system for detecting the oxygen concentration in a furnace chamber of a reflow oven, comprising: a cooling device, a filter device, and a detection device. The oxygen concentration detection system of the present application utilizes a semiconductor cooler to condense sample gas within the furnace chamber, thereby removing most of the VOC contaminants in the sample gas. Subsequently, by employing activated carbon adsorption filtration, all contaminants in the gas are basically eliminated, resulting in a more accurate detection result from the detection device. Furthermore, due to the rapid cooling capabilities of the semiconductor cooler and the relatively short sample gas flow distance, the oxygen concentration detection system of the present application is also capable of reducing the required detection time, enabling more timely detection from the detection device. Therefore, the oxygen concentration detection system of the present application is capable of timely and accurately detecting the oxygen concentration in a gas within a reflow oven furnace chamber and adjusting the oxygen content therein according to the detection result, thereby enhancing the soldering quality.

Dependencies are inferred from the claim text.