The snap action switch of the present disclosure may include a housing with a plurality of protruding blocks extending inwardly, a plunger disposed on the housing, a first elastic component coupled to the plunger for providing a force against the plunger, a cam located within the housing and being movable by the plunger, a rotor located within the housing and associated with the cam, and a second elastic component coupled to the rotor for providing a force against the rotor. When the cam moves to a first position, the rotor may rotate such that a lower surface of the cam engages with an upper surface of the rotor, and when the cam moves to a second position, the rotor may continue to rotate such that the upper surface of the rotor engages with a lower surface of at least one of the plurality of protruding blocks of the housing.

A switch for a rotating machine is provided with: a casing supporting two or more terminals respectively having contacts so as to hold the contacts exposed on an inside of the casing; a rod having a rod body fitting in the casing axially movably from a first position to a second position; a first spring axially biasing the rod returning back; a carrier housed in the casing and combined with the rod body to follow axial motion of the rod body; a conductor carried by the carrier and exposed on a side face of the carrier toward the terminals and depart from the terminals at the second position; a second spring intervening between the carrier and the conductor to bias the conductor toward the contacts; and a seal intervening between the rod and the casing and fluid-tightly isolating an interior of the casing.

An electronic device, according to one embodiment of the present invention, can comprise: a housing which has an opening part penetrating through the inside and the outside of the electronic device and forms the outside of the electronic device; a key button inserted into the opening part so as to be movable; a sealing member which is disposed such that the sealing member slidably contacts the outer surface of the key button, and prevents communication between the inside and the outside of the electronic device through the inner surface of the opening part and the outer surface of the key button; and a push switch accommodated in the housing and pressed by an inward movement of the key button. Various other embodiments are possible.

In an example, a light blocker may comprise a bellow to extend from an outer edge of a key to an inner edge of a key window to span a key gap in between the key and the key window. The bellow may extend along a periphery of the key, and the bellow may block light originating from under the key from passing through the key gap.

First guide supports and second guide supports are integrally formed on an external base material to which external terminals are fixed. Guide protrusions and guide concave parts, which extend vertically, are formed on the housing of a switch device. When each guide protrusion and its corresponding guide concave part are guided by a first guide support and a second guide support during the attachment of the switch device to the external base material, the switch device can be easily attached.

A switch mechanism (12) includes a housing (16, 18) with a fenestration (21), a switch element (22) held in the housing, and a membrane switch held in the fenestration. The membrane switch includes a flexible membrane (20) and a rigid rib (26). The rib is constrained to linear movement by guides (37, 38) in the housing so that contact with the membrane causes the membrane to deform and the rib to translate to actuate the switch element.

In an example, a light blocker may comprise a bellow to extend from an outer edge of a key to an inner edge of a key window to span a key gap in between the key and the key window. The bellow may extend along a periphery of the key, and the bellow may block light originating from under the key from passing through the key gap.

A switch includes a pushbutton comprising an actuating portion, a first fixed contact element and a first movable contact element facing the first fixed contact element for establishing a first switching way. The first movable contact element may include a movable portion of a first elastically deformable conductive blade. The actuating portion may include a first cam which cooperates with a cam follower portion of the first blade to deform or relax the first blade for longitudinally moving the first movable contact element to come into contact, or out of contact, with the portion of the first fixed contact element, depending on the vertical position of the actuation member. A second fixed contact element and second movable contact may be similarly constructed to provide a second switching way.

Disclosed is an externally-assembled waterproof side key assembly and a mobile terminal including the same. The mobile terminal includes a terminal main body having a key assembly hole formed at at least a side thereof, and an externally-assembled waterproof side key assembly assembled from an outside of the terminal main body toward an area of the key assembly hole of the terminal main body. The externally-assembled waterproof side key assembly includes a side key having a protruding assembly terminal that is assembled by being inserted into the key assembly hole from the outside of the terminal main body, and a waterproof ring into which the protruding assembly terminal of the side key is inserted, the waterproof ring being disposed in the key assembly hole by being inserted into the key assembly hole from the outside of the terminal main body, and shielding a gap between the protruding assembly terminal and the key assembly hole for waterproof.

An electronic device according to the present disclosure includes: a housing including a first plate directed in a first direction, a second plate facing a second direction opposite the first direction, and a side member that encloses at least a portion of a space between the first plate and the second plate; a display disposed to be exposed through a first region of the first plate; a first opening formed in a second region of the first plate that is located adjacent to the display; a button structure disposed through the first opening, in which the button structure includes a cover layer exposed to an outside of the housing, an annular structure that encloses at least a portion of the cover layer when viewed from above the cover layer, and a fingerprint recognizing member enclosed by the annular structure and including a fingerprint recognizing pad including a plurality of conductive lines formed to recognize a fingerprint when a user's finger comes in contact with the cover layer, and a circuit region including conductive paths connected to at least some of the plurality of conductive lines; and a lower plate connected to the annular structure. The cover layer, the annular structure, and the lower plate are configured to substantially enclose the fingerprint recognizing member, and the lower plate includes a second opening that communicates with at least a portion of the circuit region.