CN203039396U - AC and DC combined charger - Google Patents

Abstract

The utility model relates to the technical field of chargers, and especially refers to an AC and DC combined charger comprising a housing, a charging module arranged in the housing, charging cells and a boost module, wherein an input terminal of the charging module is electrically connected with a plug on the housing, an output terminal of the charging module is connected in parallel with the charging cells and a charging interface, an output terminal of the charging cells is connected with an input terminal of the boost module, an output terminal of the boost module is connected with the charging interface, a charge switch is arranged between the charging module and the charging cells, and a discharge switch is arranged between the charging cells and the boost module. The AC and DC combined charger is easy in operation, combines of a commercial power charging function with that of a portable power source, so double functions of a normal charger and the portable power source are both provided; and the AC and DC combined charger is small in size, beautiful and environmental friendly, saves material and energy source, prevents secondary pollution of the portable power source, simultaneously reduces burden of consumers, and is convenient to be carried outside by people.

Description

AC and DC integrated charger

technical field

The utility model relates to the technical field of chargers, in particular to an AC and DC integrated charger.

Background technique

The chargers currently used in the market are all directly charging the electric device. If there is no mains power, you can use a power bank (referring to a device that can directly charge mobile devices and has its own power storage unit) to charge the user. However, these two charging methods are independent devices, which are not convenient for people to go out and carry.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art and provide an AC and DC integrated charger.

The technical solution adopted by the utility model to solve the technical problem is: an AC and DC integrated charger, which is used for charging external electrical devices, including a housing, a charging module arranged inside the housing, a rechargeable battery and a booster module, the input end of the charging module is electrically connected to the plug on the housing, the output end of the charging module is connected to the rechargeable battery and the charging interface in parallel, the output end of the rechargeable battery is connected to the input end of the booster module, and the output end of the booster module The output end is connected with the charging interface, a charging switch for the rechargeable battery is set between the charging module and the rechargeable battery, and a discharge switch for the rechargeable battery is set between the rechargeable battery and the booster module.

The casing is provided with an inlet for putting in the rechargeable battery, and an upper cover is installed on the inlet.

The rechargeable battery is a lithium battery.

The utility model is easy to operate, combines AC charging and DC charging together, has the dual functions of ordinary charger and power bank, has beautiful appearance, small size, not only saves materials and energy, but also prevents secondary charging of power bank At the same time, it reduces the burden on consumers and is convenient for people to carry when they go out. It reduces the embarrassment of having to bring multiple charging devices when going out, greatly increases the charging capacity of the charger, and changes the history of ordinary chargers that cannot be charged without mains power. , to fill the gap that ordinary chargers cannot recharge.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a working principle diagram of the present utility model.

Fig. 2 is a schematic structural view of the utility model.

In the figure: 1. Housing, 2. Rechargeable battery, 3. Plug, 4. Charging interface.

Detailed ways

The utility model is described further in conjunction with accompanying drawing now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the utility model in a schematic way, so they only show the configurations related to the utility model.

The AC and DC integrated charger shown in Figure 1 is used for charging external electrical devices, and is characterized in that it includes a housing, a charging module arranged inside the housing, a rechargeable battery and a booster module, and the input of the charging module terminal is electrically connected to the plug on the housing, the output terminal of the charging module is connected to the rechargeable battery and the charging interface in parallel, the output terminal of the rechargeable battery is connected to the input terminal of the booster module, and the output terminal of the booster module is connected to the charging interface A charging switch for the rechargeable battery is set between the charging module and the rechargeable battery, and a rechargeable battery switch is provided between the rechargeable battery and the booster module to connect the rechargeable battery, the booster module and the electrical device circuit after the charging switch is disconnected. discharge switch.

The casing 1 has an entrance for putting in the rechargeable battery 2, and an upper cover is installed on the entrance, and the rechargeable battery 2 is a lithium battery.

The charging module receives the mains power and charges the rechargeable battery or electrical device, and converts the voltage from 220V to 5V. When the rechargeable battery charges the electrical device, it is 2.4V-3.7V, so the booster module is required to increase the voltage to 5V. In order to achieve the voltage required by the electrical device.

As shown in Figure 2, the utility model has three charging modes:

(1) When the mains power is used to charge the electric device alone, the charging switch of the rechargeable battery is turned off, the discharge switch of the rechargeable battery is turned off, and the charging module directly transforms the mains power and transmits it to the electric device for charging;

(2) When the mains power is charging the electric device and the rechargeable battery at the same time, the charging switch of the rechargeable battery is connected, the discharge switch of the rechargeable battery is disconnected, and the charging module transforms the mains power and directly transmits it to the electric device and the rechargeable battery. to charge;

(3) When the rechargeable battery is charging the electrical device, the mains power is disconnected, the charging switch of the rechargeable battery is disconnected, and the discharge switch of the rechargeable battery is connected. battery, to charge it.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model. Equivalent changes or modifications made by the spirit of the present utility model shall be covered within the protection scope of the present utility model.

Claims (3)

1. An AC and DC integrated charger, which is used for charging external electric devices, is characterized in that: it includes a housing, a charging module arranged inside the housing, a rechargeable battery and a booster module, and the input terminal of the charging module is connected to the charging module. The plug on the casing is electrically connected, the output end of the charging module is connected in parallel with the rechargeable battery and the charging interface, the output end of the rechargeable battery is connected with the input end of the booster module, and the output end of the booster module is connected with the charging interface. A charging switch for the rechargeable battery is arranged between the charging module and the rechargeable battery, and a discharge switch for the rechargeable battery is arranged between the rechargeable battery and the booster module. 2. The integrated AC and DC charger according to claim 1, characterized in that: the casing has an inlet for putting in the rechargeable battery, and an upper cover is installed on the inlet. 3. The integrated AC and DC charger according to claim 1, wherein the rechargeable battery is a lithium battery.

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