Patent ID: 7404432
Filing Date: 2008-07-29
Classification: B29C,B29L,F24D,Y02B

Abstract:
1. A heating panel, comprising upper and lower plates integrally formed to face each other so as to form an inner fluid pathway in which heating water flows; a plurality of connecting members, each symmetrically extending from the upper and lower plates toward the lower and upper plates, respectively, to form upper and lower connecting members, and connecting the upper and lower plates to each other; the plurality of connecting members forming the inner fluid pathway at an inside surface of the plates; and two fluid communication portions for supplying and discharging the heating water, wherein the upper and lower portions of the inner fluid pathway are rounded where the upper and lower connecting members start to extend from the upper and lower plates, and the connecting members are formed with a groove structure, in which the connecting members are depressed at a circular-shaped periphery of the bottom plane of the connecting members, so that upper and lower portions of the inner fluid pathway form a circular or elliptical shape; and wherein one or more of the plurality of connecting members adjacent to the fluid communication portions are punctured to form holes, the holes being filled with a melted plastic resin, and the melted plastic resin being integrated with the one or more of the plurality of connecting members by pressing.