CN204045862U - With the mobile charging wiring board of USB interface - Google Patents

Abstract

The utility model discloses a movable charging plug-in board with a USB interface, which comprises a main body of the plug-in board. The main body of the plug-in board is provided with a plurality of mains jacks and at least one USB interface. An energy storage device and a rectification and filtering circuit connected to the energy storage device are provided, the USB interface is connected to the rectification and filtering circuit, and the rectification and filtering circuit is also connected to the mains through a transformer. The utility model can provide independent power supply for the USB interface through the built-in energy storage device. When connected to an external power supply, it can not only provide the mains output, but also supply power for the USB interface, and is easy to operate and easy to use.

Description

Removable charging power strip with USB interface

technical field

The utility model relates to a plug-in board, in particular to a movable charging plug-in board with a USB interface. the

Background technique

Power strips are a must-have for every household, but with the rapid development of technology, more and more small household appliances have begun to use USB ports. At present, traditional power strips can only provide ordinary mains power, without power for mobile phones. , self-contained power supply for charging MP3, MP4 and other devices, without a USB connection jack, and the power connection line and the main body of the power strip are connected together and cannot be disassembled. When charging mobile devices such as mobile phones, MP3 and MP4 , it must be connected with an external power converter and data cable, and it is very inconvenient to carry when traveling or working. Moreover, there is no energy storage device in the traditional plug-in board. When there is a power outage and no power supply equipment, the plug-in board cannot function, so the traditional plug-in board can no longer meet the current use requirements. the

Utility model content

The technical problem to be solved by the utility model is to provide a removable charging plug-in board with a USB interface for the defect that the plug-in board in the prior art cannot supply power to the USB interface and cannot store electricity. It supplies power to the USB interface and has the function of storing electricity. the

The technical scheme that the utility model solves its technical problem adopts is:

The utility model provides a movable charging plug-in board with a USB interface, which is characterized in that it includes a main body of the plug-in board, and the main body of the plug-in board is provided with a plurality of mains jacks and at least one USB interface. An energy storage device and a rectification and filtering circuit connected to the energy storage device are arranged inside the main body of the board. The USB interface is connected to the rectification and filtering circuit, and the rectification and filtering circuit is also connected to the mains through a transformer. the

The main body of the power strip is provided with a power switch, a charge switch and a discharge switch, the charge switch is connected to the energy storage device, and the discharge switch is connected to the USB interface. the

The main body of the plug-in board is also provided with a power line interface, and the plug of the plug-in board is detachably connected to the power line interface through the power line. the

A plurality of electric energy indicator lights are arranged on the main body of the plug board, and the electric energy indicator lights are connected with the energy storage device. the

The beneficial effects produced by the utility model are: a movable charging plug-in board with a USB interface of the utility model converts the mains power into a lower voltage and passes through the internal rectification and filtering circuit to realize outputting the mains power at the same time For the function of supplying power to the USB interface, the power strip also has a built-in energy storage device to realize the function of independently supplying power to the USB interface when no external power supply is connected, which is easy to operate and easy to use. the

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of the planar structure of a removable charging plug-in board with a USB interface according to an embodiment of the present invention;

Fig. 2 is a block diagram of the circuit principle of the removable charging plug board with USB interface according to the embodiment of the utility model. the

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model. the

As shown in Fig. 1 , the utility model has a removable charging plug-in board with a USB interface, which includes a main body 2 of the plug-in board, and the main body 2 of the plug-in board is provided with a plurality of mains jacks 8 and at least one USB interface 6, An energy storage device 11 and a rectification and filtering circuit 9 connected to the energy storage device 11 are arranged inside the plug-in board main body. The USB interface 6 is connected to the rectification and filtering circuit 9. connect. When an external power supply is connected, the mains input supplies power to the energy storage device 11 and the USB interface 6 after passing through the rectification and filtering circuit 9; the

In one embodiment of the present utility model, a power switch 3, a charge switch 4 and a discharge switch 5 are arranged on the main body 2 of the power strip. The interface 6 can start supplying power; turn on the charging switch 4, and the mains input will charge the energy storage device 11 through the adjustment of the transformer 10 and the rectification filter circuit 9; in the case of not connecting to an external power supply, turn on the discharge switch 5, The electric quantity in the energy storage device 11 will be output through the USB interface 6 after being regulated by the rectifying and filtering circuit 9 . the

A power cord interface 12 is arranged at the joint between the main body 2 of the power strip and the plug 1, and the plug 1 is detachably connected to the power line interface 12 through the power cord, so that the plug 1 can be separated from the main body 2 of the power strip at any time. The line board main body 2 can be used independently as a mobile power supply, and can supply power to the USB interface 6 . the

The power strip main body 2 is also provided with a plurality of power indicator lights 7 for displaying the charging status and power information of the energy storage device 11. When an external power supply is connected to charge the energy storage device 11, the power indicator lights 7 will When all the power indicators 7 are on, it means that the power of the energy storage device 11 has been fully charged; when the external power supply is not connected, turn on the discharge switch 5, and the power indicators 7 will be indicated according to the number of lights. The remaining electricity in the energy storage device 11. the

A transformer 10 is arranged inside the main body 2 of the plug-in board, and the transformer is installed between the mains input and the rectification filter circuit 9. Voltage, the voltage at this time is messy and must be rectified by a rectifier circuit. Generally, a full-bridge rectifier circuit is used to convert AC power into DC power, but the voltage is still unstable. If it is directly connected to electrical equipment, voltage fluctuations will damage the power supply. For electrical equipment, an L-C filter circuit should be added at this time to reduce voltage fluctuations through the effects of inductance and capacitance, so that the voltage can be stabilized in a smaller range. the

To sum up, the utility model converts the mains power into a lower voltage, and through the internal rectification and filtering circuit, realizes the function of outputting the mains power and supplying power to the USB interface at the same time. The function of independently powering the USB interface when connected to an external power supply is simple to operate and easy to use. the

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model. the

Claims (3)

1. A removable charging plug-in board with a USB interface, characterized in that it comprises a plug-in board main body, and the plug-in board main body is provided with a plurality of mains jacks and at least one USB interface, and the plug-in board main body An energy storage device and a rectification and filtering circuit connected to the energy storage device are arranged inside, the USB interface is connected to the rectification and filtering circuit, and the rectification and filtering circuit is also connected to the mains through a transformer; The main body of the power strip is also provided with a power cord interface, and the plug of the power strip is detachably connected to the power cord interface through the power cord. 2. The removable charging plug board with USB interface according to claim 1, characterized in that, the main body of the plug board is provided with a power switch, a charging switch and a discharging switch, and the charging switch is connected to the energy storage device, The discharge switch is connected with the USB interface. 3 . The removable charging plug board with USB interface according to claim 1 , wherein a plurality of electric energy indicator lights are arranged on the main body of the plug board, and the electric energy indicator lights are connected to the energy storage device. 4 .