Portable electronic device

1. A portable electronic device, comprising:

a first body comprising a first pillar, a second pillar, and a third pillar, wherein the second pillar is located between the first pillar and the third pillar;

a second body;

a hinge mechanism, wherein the second body is rotatably and slidably connected to the first body through the hinge mechanism;

a spring disposed in the first body as corresponding to the second pillar; and

a cable extending from the first body to the second body,

wherein the cable comprises a first winding segment, a second winding segment connected to the first winding segment, and a third winding segment connected to the second winding segment, and

the first winding segment extends through a gap between the first pillar and the second pillar, the second winding segment extends through a gap between the second pillar and the spring, and the third winding segment extends through a gap between the second pillar and the third pillar,

wherein two ends of the spring are respectively connected to the first body and the second winding segment.

2. The portable electronic device according to claim 1 , wherein the first pillar, the second pillar, and the third pillar are arranged on a straight line.

3. The portable electronic device according to claim 1 , wherein the first pillar, the second pillar, and the third pillar are located on a same side of the spring.

4. The portable electronic device according to claim 1 , wherein the spring is an expansion spring.

5. The portable electronic device according to claim 1 , wherein the first winding segment, the second winding segment, and the third winding segment show a C-shaped structure.

6. The portable electronic device according to claim 1 , wherein the first body comprises a pivot side and a heat dissipation hole located on the pivot side, and

the hinge mechanism comprises a rack fixedly disposed in the first body as corresponding to the pivot side, a rotation shaft connected to the second body, and an actuator connected to the rotation shaft,

wherein the actuator is mechanically coupled to the rack, and

when the second body rotates and opens with respect to the first body through the hinge mechanism, the rotation shaft rotates with the second body, and the actuator rotates with the rotation shaft, and the actuator rotates and slides with respect to the rack and drives the second body to slide away from the pivot side, so as to increase a distance between the second body and the heat dissipation hole.

7. The portable electronic device according to claim 6 , wherein the actuator comprises a first spur gear, a second spur gear, and a third spur gear, and

the first spur gear is connected to the rotation shaft, the first spur gear is engaged with the second spur gear, the second spur gear is engaged with the third spur gear, and the third spur gear is engaged with the rack.

8. The portable electronic device according to claim 7 , wherein the rotation shaft, the first spur gear, the second spur gear, and the third spur gear synchronously slide with the second body.

9. The portable electronic device according to claim 7 , wherein rotation axes of the rotation shaft, the first spur gear, the second spur gear, and the third spur gear are parallel to each other.

10. The portable electronic device according to claim 6 , wherein the actuator comprises a first helical gear, a second helical gear, a third helical gear, a synchronous spur gear, and a driven spur gear, and

the first helical gear is connected to the rotation shaft, and the first helical gear is engaged with the second helical gear,

wherein the second helical gear is engaged with the third helical gear, the synchronous spur gear is fixedly disposed on the third helical gear, the synchronous spur gear is engaged with the driven spur gear, and the driven spur gear is engaged with the rack.

11. The portable electronic device according to claim 10 , wherein the rotation shaft, the first helical gear, the second helical gear, the third helical gear, the synchronous spur gear, and the driven spur gear synchronously slide with the second body.

12. The portable electronic device according to claim 10 , wherein rotation axes of the rotation shaft and the first helical gear are not parallel to rotation axes of the second helical gear, the third helical gear, the synchronous spur gear, and the driven spur gear, and

the rotation axes of the second helical gear, the third helical gear, the synchronous spur gear, and the driven spur gear are parallel to each other.

13. The portable electronic device according to claim 6 , wherein the actuator comprises a toothed belt,

the toothed belt comprises an inner surface contacting the rotation shaft, an outer surface with respect to the inner surface, and a plurality of actuation teeth protruding from the outer surface, and

the plurality of actuation teeth are engaged with the rack.

14. The portable electronic device according to claim 13 , wherein the rotation shaft and the toothed belt synchronously slide with the second body.

15. The portable electronic device according to claim 13 , wherein the hinge mechanism further comprises a driven shaft pivotally disposed in the second body,

the driven shaft is aligned with the rotation shaft, and

the inner surface of the toothed belt contacts the driven shaft.