Electronic apparatus

1. An electronic apparatus comprising:

a main body chassis equipped with an upper-face cover having at least a rear cover part located on a rear end side, and a front cover part located on a front end side;

a keyboard device disposed between said rear cover part located on said rear end side and front cover part located on said front end side;

a central processing unit (CPU) disposed on said rear end side beyond said keyboard device;

a first heat diffusion component and a second heat diffusion component disposed at a position located under said keyboard device in a mutually superposed state, wherein said first and second heat diffusion components are separate from said keyboard device;

a first heat transport component connected between said CPU and said first heat diffusion component to provide heat transfer; and

a second heat transport component connected between said CPU and said second heat diffusion component to provide heat transfer.

2. An electronic apparatus comprising:

a main body chassis equipped with a keyboard device, wherein said main body chassis includes an upper-face cover with an upper face, wherein said upper-face cover has at least a rear cover part located on a rear end side beyond a position where said keyboard device is disposed, and a front cover part located on a front end side ahead of the position where said keyboard device is disposed, wherein said upper-face cover includes side cover parts on said left and right sides of a position where said keyboard device is disposed;

a central processing unit (CPU) disposed on said rear end side beyond said keyboard device;

a heat diffusion component disposed at a position located under said keyboard device in a mutually superposed state; and

a heat transport component connected between said CPU and said heat diffusion component to provide heat transfer, wherein said heat transport component includes two heat pipes, wherein one of said heat pipes is made to pass through a position located under said side cover part on said left side of said keyboard device in said mutually superposed state, and another one of said heat pipes is made to pass through a position located under said side cover part on said right side of said keyboard device in said mutually superposed state.

3. The electronic apparatus of claim 2 , wherein said CPU is disposed in said main body chassis in a state of being mounted on a substrate and said substrate is disposed at a position located under said rear cover part in said mutually superposed state.

4. The electronic apparatus of claim 2 , wherein said heat transport component is made to pass through a position located under rearmost-row keys that are arrayed side by side in a left-right direction on said rearmost end side in a plurality of keys on said keyboard device in said mutually superposed state.

5. The electronic apparatus of claim 2 , wherein said heat transport component is made to pass through a position that deviates towards a side part of said keyboard device and is located under said side cover part in said mutually superposed state.

6. The electronic apparatus of claim 2 , wherein said heat diffusion component is provided as one pair of left and right heat diffusion components, said one heat pipe is connected to one heat diffusion component and said another one heat pipe is connected to said other heat diffusion component.

7. The electronic apparatus of claim 2 , wherein a gap in which wiring is to be laid is provided between said pair of said heat diffusion components.

8. The electronic apparatus of claim 2 , wherein

a battery device is disposed at a position located under said front cover part in said mutually superposed state; and

said wiring includes a power source line that is connected between said battery device and said substrate.

9. An electronic apparatus comprising:

a main body chassis equipped with a keyboard device, wherein said main body chassis includes an upper-face cover with an upper face, wherein said upper-face cover has at least a rear cover part located on said rear end side beyond a position where said keyboard device is disposed, and a front cover part located on said front end side ahead of the position where said keyboard device is disposed;

a central processing unit (CPU) disposed on said rear end side beyond said keyboard device, wherein said CPU is mounted on a substrate disposed under said rear cover part;

a heat diffusion component disposed at a position located under said keyboard device in a mutually superposed state;

a first heat transport component connected between said CPU and said heat diffusion component to provide heat transfer;

a second heat transport component connected between said CPU and said second heat diffusion component to provide heat transfer; and

a heat absorbing member covers said CPU and at least parts of said substrate and said heat transport component.

10. The electronic apparatus of claim 9 , wherein said heat absorbing member has a hook that projects in a sheet thickness direction of said heat absorbing member and is engaged with and supported by said substrate using said hook.