The present disclosure relates to an electronic device and a wearable device with an elastomeric member. The electronic device includes a housing, a key, a circuit board, a trigger structure and the elastomeric member. The key is connected to the housing and movable relative to the housing when pressed. The circuit board is connected to the housing. The trigger structure is electrically connected to the circuit board. The elastomeric member includes a first connection and a second connection, the first connection being electrically connected to the circuit board, the second connection being abutted on the key. The key, the first connection, and the second connection are conductive to the circuit board. When the key is pressed, the elastomeric member is capable of generating two level of deformation and causing the second connection to switch from a state spaced apart from the trigger structure to a state contacting the trigger structure.

Disclosed is a rotary bridge micro-switch. The rotary bridge micro-switch comprises an insulating base, wherein a first terminal, a second terminal and a third terminal are arranged on the insulating base and are spaced from one another by the insulating base; and the insulating base is rotatably connected to a conducting plate having one end abutting against the first terminal. The rotary bridge micro-switch further comprises a spring having two ends respectively connected to the other end of the conducting plate and the insulating base. When the spring is not compressed, the first terminal is connected to the second terminal through the other end of the conducting plate. When the spring is compressed, the first terminal is connected to the third terminal. The rotary bridge micro-switch can be pressed to realize switching between two circuits.

A microswitch includes a contact chamber that accommodates a contact mechanism that opens and closes an electrical circuit; an enclosure that accommodates the contact chamber; and a pressing component that accepts a pressure external to the enclosure. The pressing component may include an insertion part that is inserted into an insertion hole in the contact chamber and acts on the contact mechanism, the insertion part receiving a pressure external thereto and moving from a first side that is outward of the enclosure to a second side that is inward of the enclosure. The pressing component may include a shielding part that shields the insertion hole from the contact chamber side, the shielding part being larger than the insertion hole in a direction orthogonal to an insertion direction to block the insertion hole.

A key module (110) for a keyboard is presented. The key module (110) comprises a key tappet (220). The key tappet (220) comprises a coupling portion (322) for coupling with a keycap for the key module (110). The key tappet (220) comprises at least one guiding portion (326, 328) for guiding a translational actuation movement of the key tappet (220) between a rest position and an actuated position. The key tappet (220) comprises at least one tappet stop (324) for limiting the actuation movement. The key module (110) also comprises a trigger element (350) for triggering a switch signal of the key module (110) in response to the actuation movement. The trigger element (350) is attachable to the key tappet (220). The key module (110) further comprises a module housing (230), wherein the module housing (230) is integrally formed. The module housing (230) comprises at least one positioning protrusion (334) for positioning the key module (110) and a circuit substrate of the keyboard. The module housing (230) is formed to movably accommodate the key tappet (220), in order to enable the actuation movement of the key tappet (220) relative to the module housing (230). The module housing (230) comprises at least one housing stop (332) for abutment against the at least one tappet stop (324) of the key tappet (220) in the rest position of the key tappet (220). Moreover, the key module (110) comprises elastic means (340). The elastic means (340) is configured to bias the key tappet (220) into the rest position in an assembled state of the key module (110).

An electric switch of the normally open type includes a body made of insulating material, an actuator that is moveable between a high rest position and a low active contact position, a first elastically deformable contact blade supported by the body, and a second elastically deformable contact blade supported by the body. A first contact section of the first contact blade extends above a second contact section of the second contact blade. The first and second contact sections are superposed and are vertically distanced from each other when the actuator is in high rest position, and are in mutual electrical contact when the actuator is in low position so as to establish an electrical switching path.

A switch, keyboard and associated methods are provided. In one implementation, the switch includes a housing having a protruding portion configured to be received in an aperture formed on a substrate, a plunger operable to move with respect to the housing, a first contact member located in the housing, and a second contact member extending from the protruding portion of the housing. The second contact member is operable to, based at least in part on the plunger being moved in a first direction, deform to a predefined extent to electrically contact the first contact member. The switch provides a low profile appearance but not compromising the smooth and quickly responsive striking motion for a mechanical switch, such that a clean design can be provided while the input experience and durability are maintained. A keyboard is also provided.

An electric switch of the normally open type includes a body made of insulating material, an actuator that is moveable between a high rest position and a low active contact position, a first elastically deformable contact blade supported by the body, and a second elastically deformable contact blade supported by the body. A first contact section of the first contact blade extends above a second contact section of the second contact blade. The first and second contact sections are superposed and are vertically distanced from each other when the actuator is in high rest position, and are in mutual electrical contact when the actuator is in low position so as to establish an electrical switching path.

A waterproof board switch includes a print circuit board, a bottom coverlay, an insulation adhesive film having a dome hole and being thermo-compression bonded to the front surface of the print circuit board, a metal dome inserted into the dome hole, and a top coverlay coupled to the insulation adhesive film and the print circuit board to cover the dome hole and surround sides of the insulation adhesive film and sides of the print circuit board. The top coverlay is thermo-compression bonded to the top of the insulation adhesive film, the sides of the insulation adhesive film, and the sides of the print circuit board by thermo-compression bonding to seal a space on which the metal dome rests, thereby preventing an introduction of contaminant into the metal dome and the print circuit board.

A waterproof board switch includes a print circuit board, a bottom coverlay, an insulation adhesive film having a dome hole and being thermo-compression bonded to the front surface of the print circuit board, a metal dome inserted into the dome hole, and a top coverlay coupled to the insulation adhesive film and the print circuit board to cover the dome hole and surround sides of the insulation adhesive film and sides of the print circuit board. The top coverlay is thermo-compression bonded to the top of the insulation adhesive film, the sides of the insulation adhesive film, and the sides of the print circuit board by thermo-compression bonding to seal a space on which the metal dome rests, thereby preventing an introduction of contaminant into the metal dome and the print circuit board.

An electric micro-switch has at least one electric contact. The contact has a profiled section. The profiled section has a longitudinal extension, a bent portion formed in the longitudinal extension and having an outer surface that is, at least in section, formed in a rounded manner. A contact region is defined on the outer surface of the bent portion. A method for manufacturing the micro-switch is also disclosed.