CPC G06F 3/03545 (2013.01) [G06F 3/0202 (2013.01)] | 20 Claims |
1. A stylus comprising:
a barrel assembly and a tip assembly, wherein the tip assembly is located at an end of the barrel assembly and a gap is present between the tip assembly and the barrel assembly;
a first electrode, a second electrode, a signal board, a mainshaft, a pressure sensor assembly, a control board, and a flexible electrical connection assembly,
wherein one end of the first electrode is located at a writing end of the tip assembly, the signal board extends into the tip assembly and connects to another end of the first electrode, and the second electrode fits around the signal board and is electrically connected to the signal board, and
wherein the pressure sensor assembly is fixed in the barrel assembly, one end of the mainshaft is connected to the tip assembly, another end of the mainshaft is coupled to the pressure sensor assembly to transfer pressure from the tip assembly to the pressure sensor assembly, the pressure sensor assembly is electrically connected to the control board, one end of the flexible electrical connection assembly is connected to the signal board, another end of the flexible electrical connection assembly is electrically connected to the control board, and a bending portion is present between the one end and the another end of the flexible electrical connection assembly, and
wherein the flexible electrical connection assembly comprises a flexible circuit board and an electrical connector, with the electrical connector connected to an end of the flexible circuit board facing towards the control board and the bending portion located on the flexible circuit board, and
wherein the pressure sensor assembly comprises a pressure sensor and an electrical connecting member, wherein one side surface of the pressure sensor abuts against an end of the mainshaft, the electrical connecting member is connected to another side surface of the pressure sensor, and the electrical connecting member is electrically connected to the control board;
a fixed bracket, wherein the fixed bracket is fixed in the barrel assembly and the fixed bracket comprises a main body with an accommodating chamber, an opening of the accommodating chamber facing the mainshaft and the pressure sensor assembly being located in the accommodating chamber; and
an insulating sleeve, wherein the insulating sleeve fits around the signal board, the second electrode fits around an outer wall of the insulating sleeve, and the insulating sleeve extends partly into the mainshaft and connects to the mainshaft, wherein a first through hole is provided in the insulating sleeve, a first conductive member fits around the signal board, and the second electrode extends partly into the first through hole and touches the first conductive member, and
wherein an elastic member fits around the outer wall of the mainshaft, a second limit part is provided on the outer wall of the mainshaft at an end facing away from the tip assembly, and the elastic member is clipped between an end of a fixed sleeve facing away from the tip assembly and the second limit part.
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