Electronic apparatus having a housing having a liquid drain structure

1. An electronic apparatus comprising:

a housing which has a first chamber to house circuit components and a second chamber partitioned from the first chamber;

a keyboard mounting portion which is provided on a top face of the housing, and on which a keyboard is mounted;

a liquid inlet which communicatively connects the keyboard mounting portion and the second chamber, the liquid inlet configured to guide liquid into the second chamber; and

a liquid outlet which is opened from the second chamber to the outside of the housing in a part below the liquid inlet, the liquid outlet having an opening area larger than the liquid inlet,

wherein the housing has a bottom wall and a side wall standing from an edge of the bottom wall, and the liquid outlet includes at least one first drain port opened in the side wall, and at least one second drain port opened in the bottom wall.

2. The electronic apparatus according to claim 1 , wherein the bottom wall of the housing has a staged portion that is one step higher than the bottom wall at a position corresponding to the second chamber, and the second drain port is formed in the staged portion.

3. The electronic apparatus according to claim 1 , wherein at least a part of the liquid inlet is opposite to the second drain port.

4. The electronic apparatus according to claim 1 , wherein the housing has a partition wall provided between the first chamber and second chamber.

5. The electronic apparatus according to claim 4 , wherein the housing includes a bottom case having the liquid outlet and a top cover having the keyboard mounting portion and liquid inlet, and the partition wall has a first wall projected upward from the bottom case and a second wall projected downward from the top cover.

6. The electronic apparatus according to claim 5 , wherein the upper end of the first wall is located above the first drain port.

7. The electronic apparatus according to claim 5 , wherein the first wall and second wall are overlapped each other in the thickness direction of the housing.

8. The electronic apparatus according to claim 7 , wherein the first wall surrounds the second wall.

9. An electronic apparatus comprising:

a housing having a bottom wall and a side wall standing from an edge of the bottom wall, an inside of the housing being divided into a first chamber housing circuit components and a second chamber adjacent to the first chamber;

a keyboard mounting portion which is provided on a top face of the housing, and on which a keyboard is mounted;

a liquid inlet which communicatively connects the keyboard mounting portion and the second chamber; and

a liquid outlet which is opened from the second chamber to an outside of the housing in a part below the liquid inlet, the liquid outlet including at least one first drain port opened in the side wall, and at least one second drain port opened in the bottom wall.

10. The electronic apparatus according to claim 9 , wherein the liquid outlet has an opening area larger than the liquid inlet.

11. The electronic apparatus according to claim 9 , wherein the keyboard has a flat cable which is connected to the circuit component, the keyboard mounting portion has a bottom on which a cable insertion hole through which the flat cable is led is formed, and the cable insertion hole is covered with a cover fixed to the bottom.

12. The electronic apparatus according to claim 11 , wherein the cover includes a seal member, the seal member being shaped like a loop to be laid along an outer peripheral edge of the cover, and when the cover is fixed to the bottom of the keyboard mounting portion, the seal member coming into contact with a peripheral edge defining the cable insertion hole.

13. The electronic apparatus according to claim 12 , wherein when the cover is fixed to the bottom of the keyboard mounting portion, the flat cable is inserted between the peripheral edge defining the cable insertion hole and the seal member of the cover.