Abstract: A waterproof casing for an electronic device has a body, a cover module and multiple fixers. The body has two connecting assemblies respectively mounted on two side surfaces of the body and each connecting assembly has two wings and a trough defined between the wings and the corresponding side surface of the body. The cover module has a first cover and a second cover respectively mounted on two ends of the body. The fixers are respectively inserted into a corresponding one of the first cover or the second cove and are steadily mounted with the body. The types of the cover module can be changed to fit with an electronic device installed in the body. Therefore, the combination between the body and the cover module is variable, and the waterproof casing has good applicability.

Abstract: A waterproof casing for an electronic device has a body, a cover module and multiple fixers. The body has two connecting assemblies respectively mounted on two side surfaces of the body and each connecting assembly has two wings and a trough defined between the wings and the corresponding side surface of the body. The cover module has a first cover and a second cover respectively mounted on two ends of the body. The fixers are respectively inserted into a corresponding one of the first cover or the second cove and are steadily mounted with the body. The types of the cover module can be changed to fit with an electronic device installed in the body. Therefore, the combination between the body and the cover module is variable, and the waterproof casing has good applicability.

Abstract: An over current protection method for a power supply includes steps as follows. Firstly, an output current value of the power supply is received. Secondly, whether the power supply has an over current status is determined in accordance with the received output current value. Thirdly, if the over current status occurs, the over current status is monitored to check whether the over current status continues for more than a setting period of time. If the over current status continues for more than the setting period of time, the power supply is disabled. On the other hand, if the over current status is eliminated with the setting period of time, a process flow returns to the first step of receiving an output current value of the power supply.