| 摘要 |
<p>The electrical connection comprises two parts mounted, respectively, to the window frame and the frame of the sash, whereas the connection part mounted to the window frame /3/ is connected to the power source by an electrical cable, while the part mounted to the frame /4/ of the sash is connected by a cable to the electrical device installed on the sash. Both parts of the connection have contact elements /2/ and /6/ which come into contact during window closing and remain in contact in the closed window position, allowing electricity to flow.</p> |
