CN201408898Y

CN201408898Y - Power socket with USB interface

Info

Publication number: CN201408898Y
Application number: CN2009201315126U
Authority: CN
Inventors: 朱勇文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-05
Filing date: 2009-05-05
Publication date: 2010-02-17
Anticipated expiration: 2019-05-05

Abstract

The utility model discloses a power socket with a USB interface, which comprises a box body, wherein, a power supply base body connected with a power supply is arranged inside the box body; a power socket hole is formed on the power supply base body; at least one USB interface is formed on the power supply base body; the USB interface hole is connected with the power supply through a charging circuit; the charging circuit is made up of an EMI circuit, a rectification/filter circuit, a power converter circuit and an output circuit; and the power supply is connected to the USB interface throughthe charging circuit formed by connecting the EMI circuit, the rectification/filter circuit, the power converter circuit and the output circuit in sequence. The power socket with the USB interface canbe widely installed on walls in houses, offices, hotels, public places and other locations, thereby bringing conveniences to electronics and equipment which depend on USB interfaces for power supply.Moreover, only a connecting cable with a USB port suffices to make possible the acquisition of requested power supply from the power socket.

Description

A kind of supply socket with USB interface

Technical field:

The utility model relates to a kind of supply socket, particularly relates to the supply socket of UBS interface.

Background technology:

Usually the supply socket great majority of installing in family or office are the supply socket of civil power, the various plug passes of output AC 220V only are provided, but the high speed development of electronic technology, today that electronic product emerges in an endless stream, in these miniaturization of electronic products and the integrated development process, the general-purpose serial bus USB interface that has power supply and data transport functions concurrently is adopted by increasing electronic product, mobile phone for example, digital camera, MP3, MP4 and PSP etc., wherein a lot of these series products can be powered by USB interface, carry out work or be battery charge, certainly these electronic products need be connected with other power supplys that have USB interface by the USB connecting line, power source special transducer such as computer or USB interface, this no doubt can keep the normal use of above-mentioned electronic product, but for the power supply changeover device that carries the connecting line that is provided with USB port simultaneously and have a USB port also is a not thing very easily, if forget sometimes, to directly can have influence on normal use, especially travel outside, can bring inconvenience to the user.

The utility model content:

The purpose of this utility model is that a kind of supply socket that has USB interface will be provided, can power to electronic product by USB interface, and also simple in structure, easy to use.

Solution of the present utility model to achieve the above object is:

A kind of supply socket with USB interface, comprise box body, in box body, be provided with the power supply matrix that is connected with power supply, the supply socket hole is set on the power supply matrix, it is characterized in that: the power supply matrix is provided with at least one USB interface, and this USB interface aperture charging circuit is connected with power supply.

Described charging circuit is made up of EMI circuit, rectifying/filtering circuit, power conversion circuit and output circuit, and power supply is connected with USB interface through EMI circuit, rectifying/filtering circuit, power conversion circuit and the output circuit charging circuit of forming that is linked in sequence.

Also comprise a voltage stabilizing circuit, this voltage stabilizing circuit controls signal to the PMW control circuit through sample circuit with output one after output circuit is connected, the work of PMW control circuit output pulse signal power controlling translation circuit.

Also comprise a current-limiting protection circuit, the output of current-limiting protection circuit connects output circuit, and output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.

Also comprise an overvoltage crowbar, the output of overvoltage crowbar connects output circuit, and output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.

Described rectifying/filtering circuit connects the PMW control circuit, and output one controls signal to power conversion circuit behind the signal of PMW control circuit reception rectifying/filtering circuit, the work of power controlling translation circuit.

One rectifying/filtering circuit is set between described power conversion circuit and the output circuit.

When the supply socket of the utility model band USB interface is used, only need the supply socket of band USB interface is electrically connected with mains supply, just can give for example mobile phone, digital camera, MP3, MP4 and PSP charging, they are charged or operate as normal.Have the supply socket of USB interface, can be installed on family, office, hotel, public place etc. widely locates, provide convenience for needs use the electronic product and the equipment of USB interface power supply, and gone out to carry the connecting line that is provided with USB port and just can obtain required power supply supply from supply socket easily.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is control principle figure of the present utility model;

Fig. 4 is circuit theory diagrams of the present utility model.

Embodiment

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

A kind of supply socket as depicted in figs. 1 and 2 with USB interface, comprise a box body 1, in box body 1, be provided with power supply matrix 2, power supply matrix 2 is connected with power supply through power line 4, supply socket hole 3 and USB interface 5 and USB interface 6 are set on the power supply matrix 2, and USB interface 5 is connected with power supply through charging circuit with USB interface 6.

As 3 and shown in Figure 4, charging circuit is made up of EMI circuit, rectifying/filtering circuit, power conversion circuit and output circuit, and power supply is connected with USB interface through the charging circuit that EMI circuit, rectifying/filtering circuit, power conversion circuit and output circuit are linked in sequence; One rectifying/filtering circuit is set simultaneously, in order to provide level and smooth waveform to output circuit between power conversion circuit and output circuit.

For stability and the antijamming capability that charging circuit is provided, a voltage stabilizing circuit controls signal to the PMW control circuit through sample circuit with output one after output circuit is connected, the work of PMW control circuit output pulse signal power controlling translation circuit.Have the output of a current-limiting protection circuit to connect output circuit again, output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.One overvoltage crowbar, the output of overvoltage crowbar connects output circuit, and output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.

Wherein rectifying/filtering circuit also connects the PMW control circuit, output one controls signal to power conversion circuit behind the signal of PMW control circuit reception rectifying/filtering circuit, the work of power controlling translation circuit, above-mentioned protection can guarantee the use of the normal safety of supply socket.

The utility model has integrated in the supply socket of USB interface, can be installed on the metope of locating in family, office, hotel, public place etc. widely, provide convenience for needs use the electronic product and the equipment of USB interface power supply, and gone out to carry the connection cable that is provided with USB port and just can obtain required power supply supply from supply socket easily.

Claims

1, a kind of supply socket with USB interface, comprise box body, in box body, be provided with the power supply matrix that is connected with power supply, the supply socket hole is set on the power supply matrix, it is characterized in that: the power supply matrix is provided with at least one USB interface, and this USB interface aperture charging circuit is connected with power supply; Described charging circuit is made up of EMI circuit, rectifying/filtering circuit, power conversion circuit and output circuit, and power supply is connected with USB interface through EMI circuit, rectifying/filtering circuit, power conversion circuit and the output circuit charging circuit of forming that is linked in sequence.

2, a kind of supply socket according to claim 1 with USB interface, it is characterized in that: also comprise a voltage stabilizing circuit, this voltage stabilizing circuit controls signal to the PMW control circuit through sample circuit with output one after output circuit is connected, the work of PMW control circuit output pulse signal power controlling translation circuit.

3, a kind of supply socket according to claim 1 with USB interface; it is characterized in that: also comprise a current-limiting protection circuit; the output of current-limiting protection circuit connects output circuit, and output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.

4, a kind of supply socket according to claim 1 with USB interface; it is characterized in that: also comprise an overvoltage crowbar; the output of overvoltage crowbar connects output circuit, and output connects the PMW control circuit, the work of PMW control circuit output signal power controlling translation circuit.

5, a kind of supply socket according to claim 1 with USB interface, it is characterized in that: described rectifying/filtering circuit connects the PMW control circuit, output one controls signal to power conversion circuit behind the signal of PMW control circuit reception rectifying/filtering circuit, the work of power controlling translation circuit.

6, a kind of supply socket with USB interface according to claim 1 is characterized in that: a rectifying/filtering circuit is set between described power conversion circuit and the output circuit.