Method and device for analyzing amniotic fluid

To increase cooling efficiency in an electronic cooling device for cooling equipment having an electrical heating element, and to simplify installation to a substrate having an object to be cooled. The electronic cooling device comprises: a thermoelectric module 10 having a endothermic surface 10a and a heat radiation surface 10b; a heat radiation member 20 thermally connected to the heat radiation surface 10b; a heat-conducting member 30 whose one surface is thermally connected to the endothermic surface 10a and the other is thermally connected to the object 40 to be cooled; and an engagement member 50 that fixes the object 40 to be cooled and the heat-conducting member 30 and is mounted to the heat-conducting member 30. In this manner, penetration by heat transfer from the heat radiation member 20 is prevented to fix the engagement member 50 and the substrate 45 for retaining the object 40 to be cooled, thus increasing the cooling efficiency. Additionally, the object 40 to be cooled can be adhered to the heat-conducting member 30 even for the object 40 to be cooled, where the through hole cannot be opened from the rear.