Electromagnetic stylus and computer apparatus thereof

A computer apparatus comprising:

• a computer module comprising:
• a casing having a containing slot;
• a host device disposed in the casing;
• at least one heat dissipating sheet disposed on the host device;
• and
• a heat conductive strip disposed on the heat dissipating sheet;
• and
• an electromagnetic stylus detachably disposed in the containing slot, the electromagnetic stylus comprising:
• a hollow body comprising:
• a heat dissipating casing;
• a heat absorbing casing for contacting the heat conductive strip when the electromagnetic stylus is disposed in the containing slot, so as to receive thermal energy transmitted from the heat dissipating sheet via the heat conductive strip;
• and
• a heat insulation ring disposed on the heat absorbing casing and the heat dissipating casing for preventing the heat absorbing casing from contacting the heat dissipating casing;
• a pen-nib device disposed on an end of the heat absorbing casing;
• a thermal energy conversion chip disposed between the heat absorbing casing and the heat dissipating casing, for absorbing thermal energy generated by temperature difference between the heat absorbing casing and the heat dissipating casing to generate electrical signals;
• a circuit board disposed in the hollow body and electrically connected to the thermal energy conversion chip for rectifying the electrical signals transformed by the thermal energy conversion chip;
• and
• an electricity storage device disposed in the hollow body and electrically connected to the pen-nib device and the circuit board, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.

An electromagnetic stylus comprising:

• a hollow body;
• a pen-nib device disposed at one end of the hollow body;
• an energy transforming device disposed in the hollow body for converting variations in a physical quantity into electrical signals, the energy transforming device comprising:
• an energy generating motor having a rotating shaft;
• a mass disposed on the rotating shaft;
• and
• a friction cover disposed on the mass and rotatably disposed on another end of the hollow body opposite to the pen-nib device, for driving the mass to rotate with the rotating shaft, so as to make the energy generating motor generate the electrical signals;
• a circuit board disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device;
• and
• an electricity storage device disposed in the hollow body and electrically connected to the pen-nib device and the circuit board, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.

An electromagnetic stylus comprising:

• a hollow body;
• a pen-nib device disposed at one end of the hollow body;
• an energy transforming device disposed in the hollow body for converting variations in a physical quantity into electrical signals, the energy transforming device comprising:
• an energy generating motor having a rotating shaft;
• and
• an eccentric mass disposed on the rotating shaft, and the energy generating motor being used for generating the electrical signals by utilizing the eccentric mass to rotate the rotating shaft or by rotating relative to the eccentric mass via the rotating shaft with rotation of the hollow body;
• a circuit board disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device;
• and
• an electricity storage device disposed in the hollow body and electrically connected to the pen-nib device and the circuit board, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.

An electromagnetic stylus comprising:

• a hollow body;
• a pen-nib device disposed at one end of the hollow body;
• an energy transforming device disposed in the hollow body for converting variations in a physical quantity into electrical signals, the energy transforming device comprising:
• a support base disposed on the hollow body;
• at least one first piezoelectric strip disposed on the support base;
• and
• at least one mass disposed on a top end of the first piezoelectric strip, for driving the first piezoelectric strip to swing relative to the support base to generate the electrical signals;
• a circuit board disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device;
• and
• an electricity storage device disposed in the hollow body and electrically connected to the pen-nib device and the circuit board, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.

An electromagnetic stylus comprising:

• a hollow body comprising a heat absorbing casing, a heat dissipating casing, and a heat insulation ring ;
• a pen-nib device disposed on a first end of the heat absorbing casing, the heat insulation ring being disposed between a second end of the heat absorbing casing and the heat dissipating casing for preventing the heat absorbing casing from contacting the heat dissipating casing,;
• an energy transforming device disposed in the hollow body for converting variations in a physical quantity into electrical signals, the energy transforming device comprising:
• a thermal energy conversion chip connected between the heat absorbing casing and the heat dissipating casing for absorbing thermal energy generated by temperature difference between the heat absorbing casing and the heat dissipating casing to generate the electrical signals;
• a circuit board disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device;
• and
• an electricity storage device disposed in the hollow body and electrically connected to the pen-nib device and the circuit board, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.