Method for correctly mounting an electronic door lock on a left-handed or right-handed door

An electronic door lock comprising:

• a first switch configured to send a first signal;
• a second switch angularly spaced apart from the first switch and configured to send a second signal;
• a rotational actuator including a protrusion, and being rotatable between a first angular position, where the protrusion presses and actuates the first switch to send the first signal, and a second angular position, where the protrusion presses and actuates the second switch to send the second signal;
• a driving unit connected to the rotational actuator for driving the rotational actuator to rotate between the first and second angular positions;
• a latch connected to and driven by the rotational actuator to be moved between a latched position and an unlatched position when the rotational actuator is driven by the driving unit;
• and
• a control unit coupled to the driving unit, and electrically connected to the first and second switches for receiving the first and second signals therefrom;
• wherein, when the electronic door lock is assembled on the left-handed or right-handed door, the latch is able to be initially placed at the unlatched position, the protrusion is able to be initially placed at one of the first and second angular positions, and the control unit is operable to automatically implement a operating procedure for determining a correct mounting direction of the electronic door lock to a door, the operating procedure including the steps of
• i) when the protrusion initially presses the one of the first and second switches to generate one of the first and second signals and when the latch is initially placed at the unlatched position, controlling the driving unit, in response to the one of the first and second signals, to drive the rotational actuator and the protrusion to rotate in a first direction from the one of the first and second switches that is initially pressed to the other one of the first and second switches that is initially un-pressed and to drive the latch to move from the unlatched position toward a latched position,
• ii) when the latch is moved to the latched position and when the protrusion is rotated to the other one of the first and second switches that is initially un-pressed to send the other one of the first and second signals, stopping the driving unit in response to the other one of the first and second signals,
• iii) after step ii), controlling the driving unit to drive the rotational actuator and the protrusion to rotate in a second direction from the other one of the first and second switches that is initially un-pressed to the one of the first and second switches that is initially pressed and to drive the latch to move from the latched position toward the unlatched position,
• iv) when the latch is moved to the unlatched position and when the protrusion presses once again the one of the first and second switches that is initially pressed to send the one of the first and second signals, stopping the driving unit in response to the one of the first and second signals, and
• v) confirming that the electronic door lock is mounted to the left-handed or right-handed door with a correct mounting direction when steps i) to iv) are successfully implemented.

A method for determining a correct mounting direction of an electronic door lock installed on a left-handed or right-handed door, the electronic door lock including a latch, a driving unit, a rotational actuator that includes a protrusion movable between first and second angular positions when the rotational actuator is driven by the driving unit, a control unit, a first switch, and a second switch angularly spaced apart from the first switch, the method to be implemented by the electronic door lock when the latch is initially placed at an unlatched position and when the protrusion is placed at one of the first and second angular positions, the protrusion pressing and actuating the first switch to send a first signal in the first angular position and pressing and actuating the second switch to send a second signal in the second angular position, the method comprising the steps of:

• when the protrusion presses one of the first and second switches to send one of the first and second signals, controlling the driving unit, in response to the one of the first and second signals, to drive the rotational actuator and the protrusion to rotate in a first direction from the one of the first and second switches that is initiallypressed to the other one of the first and second switches that is initially un-pressed and to drive the latch to move from the unlatched position toward a latched position;
• when the latch is moved to the latched position and when the protrusion presses the other one of the first and second switches that is initially un-pressed to send the other one of the first and second signals, stopping the driving unit in response to the other one of the first and second signals;
• subsequently, controlling the driving unit to drive the rotational actuator and the protrusion to rotate in a second direction from the other one of the first and second switches that is initially un-pressed to the one of the first and second switches that is initially pressed and to drive the latch to move from the latched position toward the unlatched position;
• when the latch is moved to the unlatched position and when the protrusion presses the one of the first and second switches that is initially pressed to send the one of the first and second signals, stopping the driving unit in response to the one of the first and second signals;
• and
• confirming that the electronic door lock is mounted to the left-handed or right-handed door with a correct mounting direction when the preceding steps are successfully implemented.