Portable electronic device
A portable electronic device including a first body, a second body, a first hinge connected to the first body, a second hinge connected to the second body, and a linking rod is provided. The linking rod has a first end and a second end opposite to each other, wherein the first end is pivoted to the first hinge eccentric to a rotation axis of the first hinge, and the second end is pivoted to the second hinge eccentric to a rotation axis of the second hinge. The first and the second bodies are rotated to be closed to or far away from each other by the first hinge, the second hinge, and the linking rod.
1. A portable electronic device, comprising:
a first body;
a second body;
a first hinge, connected to the first body;
a second hinge, connected to the second body; and
a linking rod, having a first end and a second end opposite to each other, wherein the first end is pivoted to the first hinge and eccentric to a rotation axis of the first hinge, the second end is pivoted to the second hinge and eccentric to a rotation axis of the second hinge, wherein the first body and the second body are rotated to be closed to or far away from each other through the first hinge, the second hinge and the linking rod, wherein an eccentric distance of a pivoting axis of the first end to the first hinge with respect to the rotation axis of the first hinge is greater than an eccentric distance of a pivoting axis of the second end to the second hinge with respect to the rotation axis of the second hinge,
wherein the first body has a first surface and a second surface adjacent to the first hinge, the second body has a third surface and a fourth surface adjacent to the second hinge, and in a process of unfolding the first body and the second body from a closed state to an unfolded state, the first surface moves away from the third surface and the second surface moves away from the fourth surface,
wherein the first surface is adjacent to the second surface and thus form a depression, the third surface is adjacent to the fourth surface and thus form a protrusion, wherein when the first body and the second body are closed with each other, the protrusion is located within the depression, and when the first body and the second body are unfolded relative to each other, the protrusion moves away from the depression, and the depression moves under the second body,
wherein when the first body and the second body are closed, a spacing is kept between the first surface and the third surface, and when the first body and the second body are unfolded, the second surface contacts the third surface,
wherein the rotation axis of the second hinge is located in a fixed position and does not move in the second body during the process of folding and during the process of unfolding.
2. The portable electronic device as recited in claim 1 , wherein the first hinge has a first hinge portion and a first head portion coaxially arranged with each other, the first hinge portion is connected to the first body so as to be driven by the first body, the first head portion has at least one first eccentric hole, and the first end of the linking rod is pivoted to the first eccentric hole.
3. The portable electronic device as recited in claim 2 , wherein an outer diameter of the first head portion is greater than an outer diameter of the first hinge portion, the first head portion further has a first gap, and the first end of the linking rod within the first gap.
4. The portable electronic device as recited in claim 1 , wherein the second hinge has a second hinge portion and a second head portion coaxially arranged with each other, the second hinge portion is connected to the second body to be driven by the second body, the second head portion has at least one second eccentric hole, and the second end of the linking rod is pivoted to the second eccentric hole.
5. The portable electronic device as recited in claim 4 , wherein an outer diameter of the second head portion is greater than an outer diameter of the second hinge portion, the second head portion further has a second gap, and the second end of the linking rod is located within the second gap.
6. The portable electronic device as recited in claim 1 , further includes a torque assembly, and the first hinge and the second hinge are inserted into the torque assembly in parallel with each other.
7. The portable electronic device as recited in claim 1 , wherein in a first stage in which the first body and the second body are unfolded relative to each other, the first body moves away from the second body, and in a second stage in which the first body and the second body are unfolded relative to each other, the first body moves close to the second body, and a state transition is formed between the first stage and the second stage, wherein an included angle between the first body and the second body at the state transition is 78% to 88% of a maximum unfolding angle between the first body and the second body.
8. The portable electronic device as recited in claim 1 , wherein an axis of the first hinge and an axis of the second hinge form a first straight line, a pivotal connection between the first end and the first hinge and a pivotal connection between the second end and the second hinge form a second straight line, wherein when the first body and the second body are closed, the first straight line and the second straight line are intersected, and when the first body and the second body are unfolded, the first straight line and the second straight line do not intersect.