Patent ID: 9702189
Date: 2017-07-11
CPC Classifications: E06B

Claim:
1. An energy saving apparatus for an electric roller shutter, comprising: a curtain unit including a driving shaft, and the driving shaft having a chamber defined therein from a first end thereof and a rotary connecting portion formed on a second end thereof; a driver disposed in the chamber of the driving shaft so as to drive the driving shaft; and a curtain fixed on the driving shaft and rolling upwardly or unrolling downwardly as the driving shaft rotates; a fixing unit configured to fix the curtain unit and including a mounting rack; a first seat mounted on a first end of the mounting rack and configured to fix the driving shaft of the curtain unit; a second seat mounted on a second end of the mounting rack and configured to fix the rotary connecting portion of the driving shaft; and a rolling assembly secured in the second seat and rotatably connecting with the rotary connecting portion of the driving shaft, wherein the rolling assembly has two rotating discs, and each rotating disc has an opening for connecting with each of a plurality of posts of a second covering part of the second seat, and the rolling assembly also has a reed surrounding around the two rotating discs; a signal receiver electrically connected with the driver of the curtain unit and including a casing; a coupling portion disposed on one end of the casing and electrically coupling with the driver of the curtain unit; a power supply module housed in the casing and configured to supply power to the driver; and a receiving module accommodated in the casing; and a controller configured to send a signal to the receiving module in the casing of the signal receiver, such that the driver of the curtain unit is controlled by the controller to operate; wherein the mounting rack of the fixing unit has an accommodating groove for housing the first seat and the second seat; wherein the first seat has a first covering part and a first lid connecting with the first covering part, and the first lid has at least one first locking segment extending outwardly from a top of the first lid and configured to retain in the accommodating groove of the mounting rack; the first lid also has a first orifice for coupling with the driver of the driving shaft, and the first lid further has a second orifice defined thereon; the second seat has the second covering part and a second lid connected with the second covering part, wherein the second covering part has the plurality of posts for positioning the rolling assembly, and the second lid has at least one second locking segment extending outwardly from a top of the second lid and configured to retain in the accommodating groove of the mounting rack; and the second lid also has a first aperture for coupling with the driving shaft of the curtain unit, the rotary connecting portion of the driving shaft rotatably connects with the rolling assembly; wherein the driver has a transmission member, and the transmission member has a first positioning disc fixed on a first end thereof and has a connection hole formed on a second end thereof; the driver also has a drive motor connected with the connection hole of the transmission member, and the drive motor has a second positioning disc arranged on one end thereof, the second positioning disc has a plurality of notches defined on a peripheral side thereof; the driver has an affix protrusion extending outwardly from the first positioning disc of the transmission member; a wire coupled with the drive motor and extending through the transmission member and the affix protrusion, wherein the wire has a connector disposed in the second orifice of the first lid of the first seat, and the connector is electrically connected with the coupling portion of the signal receiver, when the driver is mounted in the chamber of the driving shaft of the curtain unit, the first positioning disc of the transmission member of the driver and the second positioning disc of the drive motor are housed in the chamber, and when the drive motor operates, it drives the second positioning disc and the first positioning disc of the transmission member to rotate so that the driving shaft of the curtain unit is driven to revolve by the second positioning disc and the first positioning disc.