国家/地区 中国（2）
IPC部 E（2）
IPC大类 E04（2）
IPC小类 E04B（2）
IPC
发明人 HE Z（2）
公开年 2023（2）
申请年 2022（2）
专利权人

Double-stage friction electromagnetic damper used in technical field of engineering damping, has soft steel damper that rotates from original friction energy consumption to enter second stage of bending energy consumption.

HE Z, CHEN Z, GUO T, SU L

Hidden low-voltage heating wall for use in building, has current carrying strip whose end is electrically connected with cable, where cable is connected with temperature measuring device, and free end of cable is provided with power transformer.

NIU H, WU X, LI C, HE Z, HOU L, LI G, WU H, GENG X