Portable chargerTechnical field
The utility model relates to charger field, especially a kind of portable charger.
Background technology
Along with development of science and technology, various convenience-for-people electric equipment products consequentialities.Electric equipment products need the supply of electric power to use certainly, the supply of electric power is divided into direct current and alternating current, not needing to connect electric wire can directly supply the battery of electric power and belong to direct current, the civil power of general normal theory then belongs to alternating current, and electric equipment products are inserted in socket by electric wire and connect the alternating current use.Many electric equipment products of carrying as mobile phone, just are to use the required electric power of battery supplied mobile phone, and battery of mobile phone can be connected with alternating current and charges, to reuse.
When people at the whilst on tour of going out, the user exhausts for the electric weight that prevents electronic product, often all needs the pairing charger of each electronic product all is with, and has so increased user's load greatly.Yet most of charger volumes are big, and are not portable, consume greatlyyer, and inefficiency and be subjected to the restriction of environmental condition is unfavorable for user's the use that is convenient for carrying.
The utility model content
In view of above-mentioned condition, be necessary to provide a kind of portable charger.The printed circuit board (PCB) assembling)
A kind of portable charger, comprise by body cover and bonnet and forming, it is characterized in that: described body cover is a cavity structure, the one end is an openend, cover with described bonnet, the described body cover other end is a closed end, and its end face is provided with pin holes, and described body cover cavity includes pin, pressing plate, interchange PCBA plate, division board and DC PCB A plate.
Described pressing plate is a plate structure, which is provided with two parallel via holes.
The corresponding body cover of the described pin pin holes on the end face of remaining silent, this pin is welded with compressing tablet, this compressing tablet pass on the pressing plate two parallel via holes and with exchanges the PCBA plate and welds.
On the described interchange PCBA plate division board is installed, in this PCBA plate was wrapped in by division board, described interchange PCBA plate and DC PCB A plate electrically connected.
Described division board is a shell structure, and this division board is provided with ladder, and its cascaded surface is provided with two vertical parallel floors.
Described DC PCB A plate is installed on the described division board cascaded surface, is welded with the USB output port on the DC PCB A plate.
Described USB output port is installed between the two parallel floors of described division board.
Be covered with the USB installing hole after described, described USB output port is corresponding with the USB installing hole.
Described DC PCB A plate is provided with the diode indicator light, is covered with and the corresponding indicator lamp hole of indicator light after described.
Above-mentioned utility model portable charger inner adopts two blocks of PCBA plates, and better the isolation of AC high pressure and 5VDC low pressure, the strengthen communication electrical isolation of PCBA plate and DC PCB A plate portion of inner plastic cement division board makes user's person safer; This charger not only volume is little, is easy to carry, and the efficient height, environmental protection owing to can cross the safety standard of various countries, has safety guarantee to human body and the electrical equipment that is recharged.
Description of drawings
Fig. 1 is the overall appearance figure of the utility model portable charger.
Fig. 2 is the blast structural representation of the utility model portable charger.
Fig. 3 is the utility model portable charger two PCBA plates and partition plate structure schematic diagram.
Fig. 4, Fig. 5 are the partition plate structure schematic diagrames of the utility model portable charger embodiment;
Fig. 6 is the utility model portable charger pressure plate structure schematic diagram;
Fig. 7 is the utility model portable charger compressing tablet structural representation.
Wherein: 11, body cover; 12, bonnet; 112, pin holes; 124, diode indicator lamp hole; 122, USB installing hole;
20, pin; 202, compressing tablet;
30, pressing plate; 302, through hole;
40, exchange the PCBA plate;
50, division board; 502, floor; 504, cascaded surface;
60, DC PCB A plate; 602, USB output port.
Embodiment
Below in conjunction with drawings and Examples the utility model portable charger is described in further detail.
See also Fig. 1 to shown in Figure 7, a kind of portable charger of the utility model, comprise bybody cover 11 andbonnet 12 and forming,body cover 11 is a cavity structure, the one end is an openend, covers with describedbonnet 12, andbody cover 11 other ends are closed end, its end face is provided withpin holes 112,pin 20, pressingplate 30 is installed inbody cover 11 cavitys,exchanges PCBA plate 40,division board 50 and DCPCB A plate 60.
Pressing plate 30 is a plate structure, which is provided with two parallel via holes 302.Pin 20corresponding body cover 11pin holes 112 on the end face of remaining silent, thispin 20 is welded with compressingtablet 30, thiscompressing tablet 30 pass on thepressing plate 30 two parallel viaholes 302 and withexchange 40 welding of PCBA plate.
Exchange on the PCBAplate 40division board 50 is installed, in this interchange PCBAplate 40 is wrapped in bydivision board 50, exchangingPCBA plate 40 electrically connects with DC PCBA plate 60,division board 50 is a shell structure, thisdivision board 50 is provided withcascaded surface 504, and itscascaded surface 504 is provided with two verticalparallel floors 502; DC PCBA plate 60 is installed on thecascaded surface 504 ofdivision board 50, is welded withUSB output port 602 on the DC PCBA plate 60, andUSB output port 602 is installed between the twoparallel floors 502 of division board 50.Bonnet 12 is provided withUSB installing hole 122, andUSB output port 602 is corresponding withUSB installing hole 122, and DC PCBA plate 60 is provided with diode indicator light (not shown), and describedbonnet 12 is provided with and the corresponding diodeindicator lamp hole 124 of diode indicator light.
Thepin 20,compressing tablet 202,interchange PCBA plate 40 and the DC PCBA plate 60 that are installed in thebody cover 11 all electrically connect, the its internal circuit annexation is that AC rectification circuit and PSR control and drive circuit is connected with transformer circuit respectively, connect the solid capacitor filter circuit then, connect cell-phone charging ID circuit at last; Its internal circuit includes AC rectification circuit, PSR control and drive circuit, transformer circuit, solid capacitor filter circuit, cell-phone charging ID circuit; When it uses, the course of work of internal circuit is: at first insert pin on AC outlet, alternating current is by AC rectification circuit, PSR control and drive circuit, again through the transforming circuit transformation, solid capacitor filter circuit filtering output, enter cell-phone charging ID circuit then, the direct current of voltage regulation that is transformed into is for 51 outputs of USB output.In this novel portable charger internal circuit, novel solid capacitor filtering is adopted in output, to reach the low following effect of ripple 100mV; Adopting conduction voltage drop is the Schottky tube of 0.42V, to improve the utilance of power supply; AC 90V-264V voltage transitions becomes the voltage of DC 5V, and the USB delivery outlet conveniently to connect various charging wires, can supply IPHONE, IPAD, PAD, the charging of digital products such as MP4,body cover 11 inner chips with OB2542 SOT23-6, adopt former limit control technology,, be convenient to miniaturization Design with conserve space.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.