Electromagnetic vibration touch device

Abstract

An electromagnetic vibration touch device includes a base and a touch circuit board. The base includes a base body defining an inner opening, a plurality of supporting cantilever arms, a plurality of connecting members, a plurality of connecting arms, and at least one lower electromagnet. The base body has an inner periphery surrounding the inner opening. The inner periphery has two long sides and two short sides. The supporting cantilever arms extend along the front-rear direction and are located outside the base body. The connecting arms extend along the front-rear direction and connect between the long sides. The touch circuit board includes a circuit board body, a touch circuit, and at least one upper electromagnet facing the at least one lower electromagnet. The touch circuit controls the generation of a repulsive magnetic force between the at least one lower electromagnet and the at least one upper electromagnet, thereby producing excellent tactile feedback.

Claims

1. An electromagnetic vibration touch control device, comprising: a base, including a hollow base body defining an inner opening, a plurality of flexible support cantilever arms fixed to the base body, a plurality of connecting members respectively fixed to the support cantilever arms, a plurality of flexible connecting arms fixed to the base body, and at least one lower electromagnet fixed to the upper side of the base body, the base body having an inner periphery surrounding the inner opening, the inner periphery having two long sides extending in a left-right direction, and two short sides extending in a front-back direction substantially perpendicular to the left-right direction and connected between the long sides, the support cantilever arms extending in the front-back direction and located outside the base body, and the connecting arms extending in the front-back direction and connected between the long sides; and a touch circuit board, including a connector fixed to the connecting members. The circuit board body, a touch circuit fixed to the circuit board body, and at least one upper electromagnet fixed to the lower side of the circuit board body and facing the at least one lower electromagnet, the touch circuit being electrically connected to the at least one lower electromagnet and the at least one upper electromagnet, the touch circuit being used to control the at least one lower electromagnet and the at least one upper electromagnet to generate a repulsive magnetic force in a vertical direction substantially perpendicular to the left-right direction and the front-back direction, each connecting arm having two extension segments respectively fixed to the equal long sides and extending in the front-back direction, and a main body segment connected between the extension segments, the height of the main body segment extending in the vertical direction from the base body being not less than the height of the extension segments extending in the vertical direction from the base body.

2. The electromagnetic vibration touch device as claimed in claim 1 further includes a cover plate fixed to the upper side of the touch circuit board.

3. The electromagnetic vibration touch control device as described in claim 1, wherein, The base includes four flexible support cantilever arms fixed to the base body, and four connectors fixed between the support cantilever arms and the circuit board body.

4. An electromagnetic vibration touch control device, comprising a base and a touch circuit board, the base including a hollow base body defining an inner opening, a plurality of flexible support cantilever arms fixed to the base body, a plurality of connecting members respectively fixed to the support cantilever arms, a plurality of flexible connecting arms fixed to the base body, and at least one lower electromagnet fixed to the upper side of the base body, the base body having an inner periphery surrounding the inner opening, the inner periphery having two long sides extending in a left-right direction, and two short sides extending in a front-back direction substantially perpendicular to the left-right direction and connecting the long sides, the support cantilever arms extending in the front-back direction and located outside the base body, the connecting arms... Extending along the front-back direction and connected between the equal long sides, the touch circuit board includes a circuit board body fixed to the connectors, a touch circuit fixed to the circuit board body, and at least one upper electromagnet fixed to the lower side of the circuit board body and facing the at least one lower electromagnet. The touch circuit is electrically connected to the at least one lower electromagnet and the at least one upper electromagnet. The touch circuit is used to control the at least one lower electromagnet and the at least one upper electromagnet to generate a repulsive magnetic force in a vertical direction that is substantially perpendicular to the left-right direction and the front-back direction. Each support cantilever has a support fixed end fixed to the base body and a support free end opposite to the support fixed end and fixed to each of the connectors.

5. The electromagnetic vibration touch control device as described in claim 4, wherein, The base includes two flexible connecting arms that are fixed to the base body, the connecting arms extending along the front-back direction and connecting between the long sides.

6. An electromagnetic vibration touch control device, comprising a base and a touch circuit board, the base including a hollow base body defining an inner opening, a plurality of flexible support cantilever arms fixed to the base body, a plurality of connecting members respectively fixed to the support cantilever arms, a plurality of flexible connecting arms fixed to the base body, and at least one lower electromagnet fixed to the upper side of the base body, the base body having an inner periphery surrounding the inner opening, the inner periphery having two long sides extending in a left-right direction, and two short sides extending in a front-back direction substantially perpendicular to the left-right direction and connected between the long sides, the support cantilever arms extending in the front-back direction and located outside the base body, the connecting arms extending in the front-back direction and connected between the long sides, and the touch circuit board. The board includes a circuit board body fixed to the connectors, a touch circuit fixed to the circuit board body, and at least one upper electromagnet fixed to the lower side of the circuit board body and facing the at least one lower electromagnet. The touch circuit is electrically connected to the at least one lower electromagnet and the at least one upper electromagnet. The touch circuit is used to control the at least one lower electromagnet and the at least one upper electromagnet to generate a repulsive magnetic force in a vertical direction that is substantially perpendicular to the left-right direction and the front-back direction. The base also includes four flexible support arms fixed to the base body. The support arms extend along the front-back direction and are located outside the base body. Each support arm has a fixed support end fixed to the base body and a free support end opposite to the fixed support end and abutting against the touch circuit.

7. The electromagnetic vibration touch control device as described in claim 6, wherein, The base includes two lower electromagnets fixed to the upper side of the base body and spaced apart along the left-right direction, and the touch circuit board includes two upper electromagnets fixed to the lower side of the circuit board body and facing the lower electromagnets respectively.

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