CN205377439U - Mobile charging device - Google Patents

Abstract

The utility model provides a mobile charging device, including the power supply unit that provides the power, the joint of being connected with the cell -phone, the power supply unit includes two power module, two power module adopt the power supply mode of two kinds of differences to supply power, and with only having a power module to supply power to the load at one time, switch over power module through the select switch unit.

Description

A mobile charging device

technical field

The utility model relates to a charging technology, in particular to a mobile charging device with two charging modes.

Background technique

Electronic devices, especially mobile phones and tablet computers, are developing in the direction of intelligence and large screens. When there is no major breakthrough in battery technology, large screens and intelligence will definitely test the battery life of electronic devices. In the past, it was charged by connecting to the mains through a data cable, but there is no way to charge electronic devices when there is no power supply when going out. The appearance of mobile power supply solves this kind of problem. It is possible to charge the load that needs to be charged by designing a compact mobile power supply that is easy to carry. However, if the mobile power supply has no power and there are five mains power, the electronic equipment is not issued for charging, especially in emergency situations such as mobile phones and other communication equipment, the mobile phone without power will delay things.

Contents of the invention

The purpose of the utility model is to provide a mobile charging device, which includes two power supply units, and the two power supply units use different power supply methods to charge the terminal equipment connected to the device.

A mobile charging device, including a power supply unit that provides power and a joint connected to a mobile phone, the power supply unit includes two power supply modules including a first power supply module and a second power supply module, and the two power supply modules use two Different power supply modes supply power; and at the same time, only one power supply module supplies power to the load, and the power supply module is switched by selecting a switch unit.

With the above device, the first power supply module of the present invention is powered by commercial power, and the second power supply module is powered by a battery.

As an improvement of the present invention, the device further includes a charging circuit connecting the first power supply module and the second power supply module to charge the battery through commercial power; when the first power supply module supplies power, the second power supply module does not supply power.

As an improvement of the present invention, the device further includes a charging circuit connecting the first power supply module and the second power supply module, and charges the battery through commercial power.

Compared with the prior art, the present invention has the following advantages: (1) The utility model adopts two modes to switch power supply to the load, especially to use the battery to supply power to the load, which can meet the needs of timely use when there is no mains power supply. The battery charges the load; (2) the utility model can also distribute the electric signal to the load one way and the battery to charge the battery in the utility model.

The utility model is further described below in conjunction with the accompanying drawings of the description.

Description of drawings

Fig. 1 is a block diagram of the utility model.

Fig. 2 is a schematic diagram of the first embodiment of the utility model.

Fig. 3 is a schematic view of the first embodiment of the utility model.

Fig. 4 is a schematic diagram of the second embodiment of the present invention.

Fig. 5 is a functional block diagram of mutual charging between power supply modules.

Fig. 6 is a schematic diagram of the third embodiment of the present invention.

detailed description

Referring to Figure 1, a mobile charging device includes a power supply unit that provides power and a connector connected to a mobile phone. The power supply unit includes at least two power supply modules. The power supply modules use different power supply methods to supply power, and there is only one power supply module at the same time To supply power to the load, a selection switch unit is used to switch the power supply module. The charging method adopted by the device can be to connect the power line to the mains as the device to supply power, or to provide power to the device through a mobile power supply, or to provide power to the device through a battery.

The device includes several connectors of different types, wherein the first connector of the plurality of connectors is electrically connected to the power supply unit, and the remaining connectors are provided with interfaces matched and plugged with the first connectors.

Embodiment one

Referring to Fig. 2, as an embodiment of the utility model, the device includes a first power supply module, an external power supply socket 1, a second power supply module 2, a positive plate 3-1, a negative plate 3-2, and a first plug 4 -1, the second plug 4-2.

The first power supply module is powered by commercial power or mobile power.

The second power supply module is a plurality of AA rechargeable batteries, for example four.

The positive plate 3-1 provides a contact point for the positive terminal of the battery.

The negative plate 3-2 provides a contact point for the negative terminal of the battery.

The external power supply socket 1 is arranged on the negative plate 3-2, and is used for connecting the first power supply module.

The first plug 4-1 and the second plug 4-2 are arranged on the negative plate 3-2, and the first joint 4-1 is electrically connected to the power supply unit.

A first power supply circuit, a second power supply circuit, and a selection switch unit circuit are arranged in the negative plate 3-2; the first power supply circuit is used to connect the first power supply module and the first connector 4-1, and form a first discharge circuit ; The second power supply circuit is used to connect the battery and the first connector 4-1 to form a second discharge circuit; the selection switch unit circuit is used to select the first discharge circuit or the second discharge circuit. In this embodiment, when the mains is charging, the battery is taken out, and only the mains supplies power; when the battery supplies power, the connection between the external power socket 1 and the first power supply module is disconnected, and only the battery supplies power.

The first plug 4-1 and the second plug 4-2 are different types of plugs, which may be Type A/B/C connectors or Apple's lighting connectors and other connectors on the market. And the back of the second connector 4-2 is provided with a socket that fits with the first plug 4-1, and several contacts are arranged in the socket to be coupled with the contacts of the first plug 4-1, so that when the second plug 4 -2 can work normally when plugged into the first plug 4-1.

Referring to FIG. 3 , when in use, select a connector that matches the terminal device and insert it into the interface of the terminal device, and choose to use the first power supply module or the second power supply module for power supply.

Embodiment two

Referring to Fig. 4, as an embodiment of the present invention, the device includes a main body 3, a first power supply module, an external power supply socket 1, a second power supply module, a first plug 4-1, and a second plug 4-2.

The first power supply module is powered by commercial power or mobile power.

The second power supply module is a plurality of AA rechargeable batteries, for example four.

The body 3 is provided with a battery slot 5 for containing batteries.

The external power supply socket 1 is arranged on the body 3 for connecting the first power supply module.

The first plug 4-1 and the second plug 4-2 are disposed on the body 3, and the first connector 4-1 is electrically connected to the power supply unit.

A first power supply circuit, a second power supply circuit, a selection switch unit circuit and a charging circuit are set in the body 3; the first power supply circuit is used to connect the first power supply module and the first connector 4-1, and form a first discharge circuit ; The second power supply circuit is used to connect the battery and the first connector 4-1, and form a second discharge circuit; the selection switch unit circuit is used to select the first discharge circuit or the second discharge circuit; the charging circuit is used When the mains supplies power to the load, the power supply signal is divided into two channels, one for the load and one for the battery, as shown in Figure 5. When the battery is fully charged, it is in standby mode. When the mains power is withdrawn and there is a load connection, the battery supplies power to the load.

The first plug 4-1 and the second plug 4-2 are different types of plugs, which may be Type A/B/C connectors or Apple's lighting connectors and other connectors on the market. And the back of the second connector 4-2 is provided with a socket that fits with the first plug 4-1, and several contacts are arranged in the socket to be coupled with the contacts of the first plug 4-1, so that when the second plug 4 -2 can work normally when plugged into the first plug 4-1.

Embodiment three

Referring to FIG. 6 , as an embodiment of the present invention, compared with Embodiment 2, the battery slot 5 is replaced with a shape matching the button battery. The power supply module is correspondingly replaced with a button battery.

Claims (7)

1. A mobile charging device, comprising a power supply unit providing power and a joint connected to a mobile phone, characterized in that the power supply unit includes at least two power supply modules, and the power supply modules use different power supply methods to supply power, and there is only one power supply module at the same time The power supply module supplies power to the load. 2. The device according to claim 1, further comprising a selection switch unit for switching the power supply module. 3. The device according to claim 1, wherein the power supply unit includes two power supply modules including a first power supply module and a second power supply module, the first power supply module is powered by commercial power, The second power supply module provides power through the battery; when the first power supply module supplies power, the second power supply module does not supply power. 4. The apparatus of claim 3, further comprising: External power socket, used to connect the first power supply module; The first power supply circuit is used to connect the first power supply module and form a discharge circuit; The battery slot is used to accommodate the second power supply module; The second power supply circuit is used to connect the second power supply module and form a discharge loop. 5. The device according to claim 3 or 4, characterized in that the device further comprises a charging circuit connecting the first power supply module and the second power supply module, and charging the battery through commercial power. 6. The device according to claim 1, characterized in that the device comprises at least two connectors of different types. 7 . The device according to claim 6 , wherein a first connector of the connectors is electrically connected to a power supply unit, and other connectors are provided with interfaces that are mated and plugged into the first connectors. 8 .