| 摘要 |
An externally connected expansion device of portable computer. The expansion device includes an engaging unit and an outward pushing unit. The expansion device has a forward extending seat body disposed with an engaging block. When the portable computer is connected with the expansion device, the engaging block is first lowered and then lifted. After the portable computer is connected with the expansion device, the top section of the engaging block is inserted into an engaging hole formed at rear end of the bottom of the portable computer to engage the portable computer with the expansion device. Two sides of front end of the expansion device are disposed with pushing members drivingly connected with a handle. When it is desired to separate the portable computer from the expansion device, the top section of the engaging block is first sunk into the seat body and then a user can pull the handle to force the pushing members to push the portable computer out of the expansion device. A magnetic control switch is used to control whether the handle can be operated.
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