Plug-in charger

Abstract

The invention provides a plug-in charger which can compact the housing by changing the component configuration into a specific status. The plug-in charger has a housing which has a battery groove in the surface and has a foldable AC plug connected to the bottom surface, and a circuit board mounted with a charging circuit is provided in the housing. charge up circuit. The plug-in charger uses an industry power supply input from the AC plug plugged in the power socket to charge-up the battery placed in the battery groove. the charging circuit has a DC / DC converter for converting the industry power supply into the charge voltage of the battery. In the housing, the transformer of the DC / DC converter is configured at one end, namely a first end, and the AC plug first is configured at another end namely the second end. A battery groove is configured at a position of the housing deviate from the first end toward the second end, and a transformer is configured in a first containing part arranged on the first end.

Description

technical field [0001] The present invention relates to a plug-in charger for charging a battery with electric power input from a commercial power supply by inserting an AC plug into a power outlet. Background technique [0002] As the charger, there are known plug-in chargers in which an AC plug is provided in a housing, and AC input chargers in which a power supply connector to which a power supply cord is connected is provided in the housing. Since the AC input charger is connected to a power outlet using a power cord, there is a disadvantage that a long and bulky power cord is required. On the other hand, a plug-in charger provided with an AC plug does not require a power supply cord, so that the whole can be made compact and easy to carry. [0003] A charger having such a configuration is disclosed (see Patent Documents 1 and 2). The charger described in the publication is provided with a battery groove for detachably accommodating the battery on the surface of the ca...

AI Technical Summary

Problems solved by technology

However, such a structure in which a cutout is provided on the circuit board, an AC plug is arranged in the cutout, and a large transformer is arranged on the circuit board with the cutout has the following disadvantages: the overall size of the housing is limited, and the housing cannot be made small enough

That is, since the casing can only provide a thin space inside the area where the battery groove is arranged, it is necessary to increase the area where the battery groove is not provided to arrange the AC plug and the large transformer, thereby resulting in a larger overall size. shortcoming

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