Power supply device with removable plug

1. A power supply device, comprising:

a base comprising a square recess, a locating portion positioned in the recess, and a fixing portion comprising a hook protruding into the recess and a plurality of ribs; and

a plug removably received in the recess, the plug comprising a square main body and a groove for receiving the locating portion;

wherein the main body is positioned in the square recess in a selected one of two or more different orientations.

2. The power supply device as claimed in claim 1 , wherein the base further comprises a connecting member disposed in the recess, the plug further comprises a pair of contact portions, and the connecting member is electrically connected to the contact portions.

3. The power supply device as claimed in claim 2 , wherein the connecting member comprises a first contact portion and a second contact portion, and the first contact portion and the second contact portion are crescent-shaped.

4. The power supply device as claimed in claim 2 , wherein the connecting member comprises a pair of first contact portions and a pair of second contact portions; when the power supply device is in a first position, the contact portions of the plug are electrically connected to the first contact portions; when the power supply device is in a second position, the contact portions of the plug are electrically connected to the second contact portions.

5. The power supply device as claimed in claim 1 , wherein the base further comprises a bottom wall, the recess is defined in the bottom wall, and the recess is bounded by a pair of first inner walls and a second inner wall perpendicularly connected to the first inner walls.

6. The power supply device as claimed in claim 5 , wherein the locating portion comprises a pair of first protrusions disposed on the first inner walls, and a pair of second protrusions disposed at the joins of the second inner wall and the first inner walls.

7. The power supply device as claimed in claim 5 , wherein the locating portion comprises a pair of first protrusions disposed on the first inner walls, and a pair of second protrusions disposed on the second inner wall.

8. The power supply device as claimed in claim 1 , wherein the plug further comprises at least two receiving slots for receiving the hook.

9. The power supply device as claimed in claim 1 , wherein the main body comprises a top portion and a bottom portion, and the groove is positioned between the top portion and the bottom portion.

10. An electronic device, comprising:

a case comprising a square recess, a locating portion positioned in the recess, and a fixing portion comprising a hook protruding into the recess and a plurality of ribs; and

a plug removably received in the recess, the plug comprising a square main body and a groove;

wherein the locating portion is received in the groove, and the main body is positioned in the square recess in a selected one of two or more different orientations.

11. The electronic device as claimed in claim 10 , wherein the case further comprises a connecting member disposed in the recess, and the plug further comprises a pair of contact portions electrically connected to the connecting member.

12. The electronic device as claimed in claim 11 , wherein the connecting member comprises a first contact portion and a second contact portion, and the first contact portion and the second contact portion are crescent-shaped.

13. The electronic device as claimed in claim 11 , wherein the connecting member comprises a pair of a first contact portions and a pair of second contact portions; when the electronic device is in a first position, the contact portions of the plug are electrically connected to the first contact portions; and when the electronic device is in a second position, the contact portions of the plug are electrically connected to the second contact portions.

14. The electronic device as claimed in claim 10 , wherein the base further comprises a bottom wall, the recess is defined in the bottom wall, and the recess is surrounded by a pair of first inner walls and a second inner wall perpendicularly connected to the first inner walls.

15. The electronic device as claimed in claim 14 , wherein the locating portion comprises a pair of first protrusions disposed on the fist inner walls, and a pair of second protrusions disposed at the joins of the second inner wall and the first inner walls.

16. The electronic device as claimed in claim 14 , wherein the locating portion comprises a pair of first protrusions disposed on the first inner walls, and a pair of second protrusions disposed on the second inner wall.

17. The electronic device as claimed in claim 10 , wherein the plug further comprises at least two receiving slots for receiving the hook.

18. The electronic device as claimed in claim 10 , wherein the main body comprises a top portion and a bottom portion, and the groove is positioned between the top portion and the bottom portion.

19. An electronic device, comprising:

a case comprising a square recess, a locating portion positioned in the recess, and a connecting member disposed in the recess, the connecting member comprising a pair of first contact portions and a pair of second contact portions; and

a plug removably received in the recess, the plug comprising a square main body positioned in the square recess in a selected one of two or more different orientations, a groove, and a pair of contact portions electrically connected to the connecting member, the locating portion of the case being received in the groove;

wherein when the electronic device is in a first position, the contact portions are electrically connected to the pair of first contact portions; and when the electronic device is in a second position, the contact portions are electrically connected to the pair of second contact portions.