Button structure

A button structure, comprising:

• a push button having a top wall, an outer wall, a plurality of elastic arms, and a directional pad formed on a top surface of the top wall, several portions of a bottom of the outer wall of the push button extending outward to form a plurality of projection parts, the plurality of the projection parts being evenly distributed around the outer wall of the push button, each projection part extending along a radial direction of the outer wall of the push button, the plurality of the projection parts being disposed corresponding to the directional pad, one side of each projection part extending outward and along a circumferential direction of the push button to form an elastic arm, a middle of the elastic arm being arched outward and opposite to the outer wall, the elastic arm having a first arc portion, a bending portion and a second arc portion, the one side of each projection part extending outward and along the circumferential direction of the push button to form the first arc portion, one end of the first arc portion which is opposite to the one side of each projection part being bent outward and then being bent inward to form the bending portion, one end of the bending portion extending outward and along the circumferential direction of the push button to form the second arc portion, the second arc portion being disposed opposite to the first arc portion;
• a housing enclosing the push button, the housing having a top board, a plurality of first bays, a plurality of second bays, a plurality of stopping parts, and a lateral wall connected to an outer periphery of the top board, several portions of a bottom of the lateral wall extending downward to form a plurality of first retaining walls and a plurality of second retaining walls, the plurality of the first arc portions of the plurality of the clastic arms being positioned to inner surfaces of the plurality of the first retaining walls, the plurality of the second arc portions being positioned to inner surfaces of the plurality of the second retaining walls, the plurality of the first bays being formed among the plurality of the first retaining walls and the plurality of the second retaining walls, the bending portions of the plurality of the elastic arms being positioned in the plurality of the first bays, the plurality of the second bays being formed among the plurality of the first retaining walls and the plurality of the second retaining walls, the plurality of the projection parts being positioned in the plurality of the second bays, each stopping part including one first retaining wall, one second retaining wall, one first bay and one second bay, each stopping part being disposed corresponding to one projection part, and one elastic arm which is connected to the one projection part, the second arc portions of the plurality of the elastic arms abutting against inner portions of the plurality of the second retaining walls;
• a supporting unit mounted inside the push button;
• and
• a circuit board, the push button being disposed on an upper surface of the circuit board, the housing being disposed on the upper surface of the circuit board, the supporting unit being fastened between the circuit board and the push button.

A button structure, comprising:

• a push button having:
• a top wall;
• at least two pressing areas disposed on a top surface of the top wall, and the at least two pressing areas being positioned oppositely;
• at least two connection sections connected to bottoms of the at least two pressing areas;
• at least two projection parts extended outward from the at least two connection sections;
• at least two clastic arms which are cantilevered, the at least two elastic arms being extended along a circumferential direction of the push button from one sides of the at least two projection parts, and the at least two elastic arms being extended in the same direction;
• a housing mounted around the push button, an inner surface of the housing keeping a distance from upper surfaces of the at least two projection parts, inner portions of the housing abutting against tail ends of the at least two elastic arms;
• a supporting unit mounted inside the push button;
• and
• a circuit board, the push button being disposed on an upper surface of the circuit board, the housing being disposed on the upper surface of the circuit board, bottoms of the at least two connection sections being arranged corresponding to the circuit board, and the supporting unit being fastened between the circuit board and the push button;
• wherein when each pressing area in one direction is pressed downward, the bottom of the corresponding connection section presses downward on the circuit board, when the pressing area is released, the corresponding connection section moves upward and returns to an original position.