US 12,480,665 B2
Heating/cooling walls and ceilings
Francois Higel, Montelimar (FR)
Assigned to IDEAL THERM, Alixan (FR)
Appl. No. 17/925,369
Filed by IDEAL THERM, Alixan (FR)
PCT Filed Mar. 30, 2021, PCT No. PCT/FR2021/050558
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2021/198612, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2003290 (FR), filed on Apr. 2, 2020.
Prior Publication US 2023/0304675 A1, Sep. 28, 2023
Int. Cl. F24D 3/14 (2006.01); F24D 3/12 (2006.01); F24D 3/16 (2006.01); F28D 1/03 (2006.01); F28F 3/12 (2006.01); F28F 21/08 (2006.01); F28D 21/00 (2006.01)
CPC F24D 3/14 (2013.01) [F24D 3/127 (2013.01); F24D 3/165 (2013.01); F28D 1/035 (2013.01); F28F 3/12 (2013.01); F28F 21/083 (2013.01); F28D 2021/0035 (2013.01); F28F 2275/067 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A radiant heat transfer system for heating or cooling a room, comprising:
at least one heat exchange element in the form of a panel formed by a first plate and a second plate connected to said first plate, said first plate and said second plate comprising symmetrical profiles so as to form a flow channel arranged in a serpentine manner between said first plate and said second plate for the passage of a heat transfer fluid,
wherein the first plate and the second plate are pressed symmetrically so that the first plate and the second plate are superimposed on each other to form the panel comprising contact areas between the first plate and the second plate by which the first plate and the second plate will be connected, and comprising non-contact areas between the first plate and the second plate forming the flow channel for the passage of the heat transfer fluid;
wherein said first plate and said second plate are pressed steel plates and are connected to each other by welding over the entire surface of the contact areas between said first plate and said second plate,
wherein said connection between said plates is made by laser welding, and
wherein a surface texture obtained by laser treatment is present within the channel on the surface to be in contact with the heat transfer liquid of at least one of said first plate and said second plate to increase said heat transfer.