Electronic apparatus

1. An electronic apparatus, comprising:

a battery pack having a groove formed in an outer surface of the battery pack, the groove being recessed from the outer surface and extending in a predetermined direction; and

a main unit comprising a container portion containing the battery pack in a removable manner and having a projection engaged to the groove of the battery pack loaded in the container portion, and a cable disposed in an internal space of the projection.

2. The electronic apparatus according to claim 1 , wherein the projection has a concave portion, the concave portion forms the internal space, on a backside of a projecting surface of the projection, the projecting surface being positioned to face the battery pack loaded in the container portion.

3. The electronic apparatus according to claim 2 , wherein the main unit further comprises a first electronic component mounted on a surface from which the projection is projected and to which the concave portion is formed, the first electronic component covering the cable disposed in the concave portion.

4. The electronic apparatus according to claim 2 , wherein the main unit further comprises a second electronic component mounted on a surface from which the projection is projected and to which the concave portion is formed, and

the cable is connected to the second electronic component.

5. The electronic apparatus according to claim 3 , wherein the first electronic component is a keyboard.

6. The electronic apparatus according to claim 4 , wherein the second electronic component is a speaker.

7. The electronic apparatus according to claim 1 , wherein the battery pack contains a plurality of cells each having a cylindrical shape and adjacently arranged with central axes of the cylindrical cells being parallel to each other, and

the groove is recessed into a space formed between the adjacent cells.

8. A method of containing a battery pack in an electronic apparatus, comprising:

forming a groove in an outer surface of the battery pack;

recessing the groove from the outer surface;

extending the groove in a predetermined direction;

containing the battery pack in a removable manner in a main unit of the apparatus;

engaging a projection to the groove of the battery pack; and

disposing a cable in an internal space of the projection.

9. The electronic apparatus according to claim 1 , wherein the predetermined direction is different from a recessed direction of the groove,

the internal space of the projection extends in the same direction as the predetermined direction of the groove, and

the cable extends in the same direction as the extended direction of the internal space.

10. The method of containing a battery pack in an electronic apparatus of claim 8 , comprising further:

making the predetermined direction different from a recessed direction of the groove;

extending the internal space of the projection in the predetermined direction of the groove; and

extending the cable in the predetermined direction of the internal space.

11. A personal computer, comprising:

a main unit containing a battery pack in a removable manner, a projection engaged with a groove of the battery pack, and a cable disposed in an internal space of the projection;

a display unit rotatably connected to the main unit;

the groove of the battery pack formed in an outer surface of the battery pack, the groove being recessed from the outer surface and extending in a predetermined direction.