Patent ID: 9214295
Filing Date: 2015-12-15
Classification: H01H

Abstract:
1. A key structure, comprising: a base plate; a switch circuit board disposed on the base plate, wherein when the switch circuit board is triggered, the switch circuit board generates a key signal; a keycap disposed over the switch circuit board, wherein when the keycap is depressed, the keycap is moved to trigger the switch circuit board, wherein the keycap comprises a magnetic element, and the magnetic element is disposed on an edge part of the keycap for generating a magnetic force; and an enclosure frame disposed over the switch circuit board and connected with the keycap for stopping the keycap to be escaped from the enclosure frame, wherein the enclosure frame has a magnetic coating layer, and the magnetic coating layer is formed on an edge part of the enclosure frame and disposed over the magnetic element, wherein in response to the magnetic force of the magnetic element, the magnetic coating layer is contacted with the magnetic element, wherein when the keycap is depressed, the keycap is moved to trigger the switch circuit board, wherein when the keycap is no longer depressed, the keycap is moved toward the magnetic coating layer and contacted with the enclosure frame in response to the magnetic force, wherein the enclosure frame further comprises an inclined guiding recess, and the inclined guiding recess is formed in a sidewall of the enclosure frame, wherein the keycap further comprises an inclined protrusion block, and the inclined protrusion block is disposed on another edge part of the keycap and inserted into the inclined guiding recess and contacted with the inclined guiding recess, wherein when the keycap is not depressed, the inclined protrusion block is supported by the inclined guiding recess, so that the keycap is located at a first height, wherein when the keycap is depressed, the inclined protrusion block is slid within the inclined guiding recess, so that the keycap is located at a second height, wherein the second height is lower than the first height.