An electric lock includes a housing, a keypad module and a lock assembly. The keypad module is arranged on the housing. The keypad module includes a key panel, an electrode pad, a circuit board and a spacer. The key panel is marked with a plurality of key characters. The electrode pad is arranged on an inner side of the key panel, and the electrode pad has a plurality of key electrodes corresponding to the plurality of key characters respectively. The circuit board includes a plurality of key circuits. Each of the key circuits is configured to generate a key signal when contacting a corresponding key electrode. The spacer is configured to form a gap between each of the key circuits and the corresponding key electrode. The lock assembly is electrically connected to the keypad module for performing locking and unlocking operations according to the key signal.

An electric lock includes a housing, a keypad module and a lock assembly. The keypad module is arranged on the housing. The keypad module includes a key panel, an electrode pad, a circuit board and a spacer. The key panel is marked with a plurality of key characters. The electrode pad is arranged on an inner side of the key panel, and the electrode pad has a plurality of key electrodes corresponding to the plurality of key characters respectively. The circuit board includes a plurality of key circuits. Each of the key circuits is configured to generate a key signal when contacting a corresponding key electrode. The spacer is configured to form a gap between each of the key circuits and the corresponding key electrode. The lock assembly is electrically connected to the keypad module for performing locking and unlocking operations according to the key signal.

A membrane switch includes an upper electrode sheet that includes an upper electrode, a lower electrode sheet that includes a lower electrode facing the upper electrode, and an adhesive layer that joins the upper electrode sheet to the lower electrode sheet; and the upper and lower electrodes come into contact with each other due to a pressing force, which is applied to at least one of the upper electrode sheet and the lower electrode sheet, and conduct electricity. The upper electrode sheet includes: an upper base on which the upper electrode is formed; and an upper insulating layer that is provided between the upper base and the lower electrode sheet, includes a first opening at a position corresponding to the upper electrode, and is joined to the lower electrode sheet by the adhesive layer. The upper insulating layer is formed on the upper base.

A force activated electrical switch including a conductor that is screen printed on a first base and a conductor that is screen printed on a second base. The switch includes a plurality of nodes of dielectric material printed in a spaced apart pattern on at least one of the bases. The first base is positioned over the second base so that when a downward force is applied to the first base, the distance between at least a portion of the conductors decreases. The switch may be employed in a system that includes a controller operatively connected to the conductors. The controller includes a sensing circuit or processor configured to detect the presence of the occupant when the force is great enough to cause the conductors to contact one another, thereby activating the electrical switch.