CN201656507U - Multiple-interface USB power supplier - Google Patents
Multiple-interface USB power supplier Download PDFInfo
- Publication number
- CN201656507U CN201656507U CN2009202938177U CN200920293817U CN201656507U CN 201656507 U CN201656507 U CN 201656507U CN 2009202938177 U CN2009202938177 U CN 2009202938177U CN 200920293817 U CN200920293817 U CN 200920293817U CN 201656507 U CN201656507 U CN 201656507U
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- power output
- usb
- circuit
- many interfaces
- resistance
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Abstract
The utility model discloses a multiple-interface USB power supplier which comprises a shell and a power connection, wherein the shell is provided with a transformer, a rectification filter circuit, a voltage-stabilizing circuit, a power output circuit and USB power output interfaces, wherein all components are successively connected. The utility model integrates a plurality of USB power output interfaces to realize that a plurality of electronic products which are supplied with power by the USB interface can be simultaneously supplied with power or charged, which not only saves using cost but also ensures tidy and beautiful wiring. Meanwhile, the utility model has compact structure and low manufacturing cost and is suitable to popularize and use.
Description
Technical field
The utility model relates to electric supply installation, particularly a kind of many interfaces USB charger.
Background technology
Existing a lot of electric equipment all needs external power supply in work, and the attaching plug of each equipment all is a system independently, thereby cause when a plurality of electrical equipment are worked together line intensive, complicated, not only influence attractive in appearance, and because the attaching plug of each equipment all needs to take a socket, thereby cause needs to add a plurality of socket equipment, increased the cost that equipment uses virtually.
The USB power supply has now formed unified standard, and needs electronic product can both realize using the USB interface power supply at present, therefore, can consider to design a kind of USB electric supply installation of integrated a plurality of USB power supply interfaces, satisfies the demand.
The utility model content
In view of this, the utility model provides a kind of compact conformation, lower, the broad-spectrum many interfaces USB of cost charger.
The purpose of this utility model provides a kind of many interfaces USB charger, comprise shell and power connection, be provided with the transformer, current rectifying and wave filtering circuit, voltage stabilizing circuit, power output circuit and the USB power output interface that connect successively in the described shell, described USB power output interface is a plurality of.
Further, described USB power output interface is parallel with one another and be connected to the output of same power output circuit;
Further, described power output circuit is a multichannel parallel with one another, is connected with at least one USB output port of power source on each road power output circuit;
Further, described current rectifying and wave filtering circuit adopts bridge rectifier filter circuit;
Further, described power output circuit comprises second diode, triode, the 3rd electric capacity, second adjustable resistance, second resistance and the 3rd resistance, after the positive pole of described second diode connects the output of voltage stabilizing circuit, its negative pole links with the emitter of triode and an end of the 3rd electric capacity respectively, the other end ground connection of the 3rd electric capacity, the base earth of described triode and link with an end of second adjustable resistance, the negative pole of the other end of second adjustable resistance and USB power output interface links, the adjustable side of described second adjustable resistance and the emitter of triode link, and the positive pole with the USB power output interface after the collector electrode of described triode is connected with two second resistance parallel with one another and the 3rd resistance links;
Further, be provided with first diode between described voltage regulator circuit and the power output circuit;
Further, also be provided with first adjustable resistance between described voltage regulator circuit and the power output circuit;
Further, described transformer is an adjustable transformer;
Further, be provided with the voltage detecting table between the positive and negative electrode of described USB power output interface;
Further, the inside of described shell is provided with the rotation constriction device, and the power line of described power connection can be by rotating the inside that constriction device takes in shell.
The beneficial effects of the utility model are:
The utility model is by integrated a plurality of USB power output interfaces, and power supply or charging have not only been saved use cost, and can have been guaranteed that wiring is clean and tidy and attractive in appearance when can realize the electronic product of a plurality of use USB interface power supplies; Simultaneously, the utility model compact conformation, low cost of manufacture are fit to promote the use of.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the utility model structural representation;
Fig. 2 is a circuit connection diagram of the present utility model.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection range of the present utility model.
As depicted in figs. 1 and 2, many interfaces USB charger of the present utility model, comprise shell 1 and power connection 2, be provided with the transformer 3 that connects successively in the shell, current rectifying and wave filtering circuit 4, voltage stabilizing circuit 5, power output circuit 6 and USB power output interface 7, in the present embodiment, current rectifying and wave filtering circuit 4 adopts bridge rectifier filter circuit, and have filter capacitor C1 and C2, voltage stabilizing circuit adopts the LM3177 chip, this chip comprises input IN, output OUT and adjustment end ADJ, the input IN of LM3177 chip is connected with current rectifying and wave filtering circuit 4, its output OUT successively with first resistance R 1, first adjustable resistance RT1 series connection back connects adjusts end ADJ, and both common junction and power output circuit 6 link.Be provided with the first diode D1 between voltage stabilizing circuit 5 and the power output circuit, be used to prevent electric current backflow,
USB power output interface 7 is a plurality of, and as shown in Figure 2, a plurality of USB power output interfaces 7 can adopt parallel with one another and be connected to the output of same power output circuit 6.
In the present embodiment, transformer 3 is an adjustable transformer, can select two voltage gears.
In order in power supply, to detect the voltage condition of USB power supply output, between the positive and negative electrode of USB power output interface 7, be provided with voltage detecting table 8.
As another kind of application form of the present utility model, power output circuit 6 can be designed to multichannel parallel with one another, is connected with at least one USB output port of power source 7 on each road power output circuit 6.Though cost increases to some extent like this, can guarantee that power supply is more stable, and ought export after the damage by road power supply wherein, can not have influence on the power supply output on other roads.
In addition, can be at rotation constriction device of shell 1 indoor design, the power line of power connection 2 can be by the rotation constriction device inside of takeing in shell 1, thereby more convenient and practical.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. many interfaces USB charger, comprise shell (1) and power connection (2), be provided with the transformer (3), current rectifying and wave filtering circuit (4), voltage stabilizing circuit (5), power output circuit (6) and the USB power output interface (7) that connect successively in the described shell, it is characterized in that: described USB power output interface (7) is for a plurality of.
2. many interfaces USB charger according to claim 1 is characterized in that: described USB power output interface (7) is parallel with one another and be connected to the output of same power output circuit (6).
3. many interfaces USB charger according to claim 1 is characterized in that: described power output circuit (6) is a multichannel parallel with one another, is connected with at least one USB output port of power source (7) on each road power output circuit (6).
4. according to claim 1 or 2 or 3 described many interfaces USB chargers, it is characterized in that: described current rectifying and wave filtering circuit (4) adopts bridge rectifier filter circuit.
5. many interfaces USB charger according to claim 4, it is characterized in that: described power output circuit comprises second diode (D2), triode (Q1), the 3rd electric capacity (C1), second adjustable resistance (RT2), second resistance (R2) and the 3rd resistance (R3), the positive pole of described second diode (D2) connects the output of voltage stabilizing circuit (5), its negative pole links with the emitter of triode (Q1) and an end of the 3rd electric capacity (C1) respectively, the other end ground connection of the 3rd electric capacity (C1), the base earth of described triode (Q1) and link with an end of second adjustable resistance (RT2), the negative pole of the other end of second adjustable resistance (RT2) and USB power output interface (7) links, the emitter of the adjustable side of described second adjustable resistance (RT2) and triode (Q1) links, and the positive pole with USB power output interface (7) after the collector electrode of described triode (Q1) is connected with two second resistance (R2) parallel with one another and the 3rd resistance (R3) links.
6. many interfaces USB charger according to claim 5 is characterized in that: be provided with first diode (D1) between described voltage stabilizing circuit (5) and the power output circuit.
7. many interfaces USB charger according to claim 6 is characterized in that: also be provided with first adjustable resistance (RT1) between described voltage stabilizing circuit (5) and the power output circuit.
8. according to claim 1 or 2 or 3 described many interfaces USB chargers, it is characterized in that: described transformer (3) is an adjustable transformer.
9. according to claim 1 or 2 or 3 described many interfaces USB chargers, it is characterized in that: be provided with voltage detecting table (8) between the positive and negative electrode of described USB power output interface (7).
10. many interfaces USB charger according to claim 1 is characterized in that: the inside of described shell (1) is provided with the rotation constriction device, and the power line of described power connection (2) can take in the inside of shell (1) by the rotation constriction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202938177U CN201656507U (en) | 2009-12-15 | 2009-12-15 | Multiple-interface USB power supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202938177U CN201656507U (en) | 2009-12-15 | 2009-12-15 | Multiple-interface USB power supplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656507U true CN201656507U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202938177U Expired - Fee Related CN201656507U (en) | 2009-12-15 | 2009-12-15 | Multiple-interface USB power supplier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161941A (en) * | 2015-09-10 | 2015-12-16 | 罗勇进 | Single-input multi-output quick-charge cable and quick charger |
-
2009
- 2009-12-15 CN CN2009202938177U patent/CN201656507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161941A (en) * | 2015-09-10 | 2015-12-16 | 罗勇进 | Single-input multi-output quick-charge cable and quick charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |