| 摘要 |
<p>A covering for an architectural opening having an electric motor to retract the covering is described. The electric motor is powered by a photovoltaic cell array and a set of rechargeable batteries. The PC photovoltaic cell array is an integral component of the covering assembly and is arranged below the head rail (85) of the covering when the covering is in its extended position to maximize the amount of light incident on the photovoltaic cell array. The cellular shade with the location of the cells shown only by dashed lines having a head rail (85) and a bottom rail (80) secured thereto. The lift motor (30) and the control circuit (20) are located in head rail (85) while the associated battery pack (10) and PC array 5 are located in foot rail (80).</p> |
