摘要:
An electric oven is provided. The electric oven includes a chamber, a heater that heats air in the chamber and a flow guide defining a cooking space for food therein. The flow guide uniformly transfers heated air in the chamber to the food in the cooking space. The flow guide includes a body for covering the food and an exhaust for exhausting air that flows into the body.
摘要:
An electric oven includes a door and a compartment having an internal space that is selectively closed by the door. The door has a cooling air opening oil a surface facing the compartment, and the compartment has an intake opening configured to receive air exhausted through the cooling air opening. A shield element prevents foreign matter from entering into the door through the cooling air opening.
摘要:
A piezoelectric ceramic composition in which the dielectric constant, the mechanical quality factor Qm and the electromechanical coupling factor Kp are superior, and a high power output piezoelectric transformer made of it are disclosed. The piezoelectric ceramic composition according to the present invention is composed of Pb[(Sb1/2Nb1/2)x(Zr0.495Ti0.505)1−x]O3+yPbO+zMnO, where x is 0.01-0.05 mol %, y is 0.03-0.6 wt %, and z is 0.7 wt % or less. The piezoelectric transformer according to the present invention includes: a piezoelectric block composed of the same composition; a first electrode consists of an inner electrode and an outer electrode, the inner electrode being formed at the center of the top of the piezoelectric block, and the outer electrode being formed around the inner electrode by being separated by an isolating region; and a second electrode is formed on the bottom of the piezoelectric block.