CN201238259Y - Voltage conversion apparatus adhered to power supply of notebook computer - Google Patents
Voltage conversion apparatus adhered to power supply of notebook computer Download PDFInfo
- Publication number
- CN201238259Y CN201238259Y CNU2008200954433U CN200820095443U CN201238259Y CN 201238259 Y CN201238259 Y CN 201238259Y CN U2008200954433 U CNU2008200954433 U CN U2008200954433U CN 200820095443 U CN200820095443 U CN 200820095443U CN 201238259 Y CN201238259 Y CN 201238259Y
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- power supply
- plug
- supply unit
- laptop
- output
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Abstract
The utility model discloses a voltage conversion device that is arranged on a power supplier of a notebook computer, which is provided with an input faucet, a voltage decreasing circuit that is connected with the input faucet, an output faucet that is connected with the voltage decreasing circuit, and a direct-output circuit that is led out from the input faucet, wherein, the specification of the input faucet is matched with a plug of the power supplier of the notebook computer; the output end of the direct-output circuit is connected with at least one plug, and the specification of the plug is the same with the plug of the power supplier of the notebook computer. The device saves cost, space and socket resource, and has remarkable effect especially when the socket resource is lacked or the user is out.
Description
Technical field
The utility model relates to a kind of voltage conversion device, relate in particular to a kind of be attached on the laptop power supply unit voltage conversion device.
Background technology
Under the environment of electronic technology develop rapidly, many portable electronic products commonly used, as laptop, mobile phone, MP3, digital camera etc., also be used in daily life more and more widely, the power supply of these electronic products all is to charge into or infeed in the electronic product after electric main is converted to its direct current that needs, and every kind of electronic product uses the charging or the electric supply installation of its special use.So not only cause waste that voltage conversion device repeats, also caused the inconvenience of carrying.
The utility model content
Technical problem to be solved in the utility model is: a kind of voltage conversion device that is attached on the laptop power supply unit is provided, this device can be attached on the power supply unit of laptop, provides its required voltage to the portable type electronic product of other smaller powers.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of voltage conversion device that is attached on the laptop power supply unit, include continuous output socket of input socket, the reduction voltage circuit that is connected with described input socket, described reduction voltage circuit and a direct output circuit of drawing from described input socket, the power supply unit plug of the specification of described input socket and laptop is complementary; And the output of described direct output branch road is connected at least one plug, and the described plug specification correspondingly power supply unit plug with described laptop is identical.
The beneficial effects of the utility model are:
Embodiment of the present utility model is by shunting the sub-fraction of the power supply unit output voltage of laptop after the step-down, offering other portable type electronic products uses, thereby provide cost savings, space and socket resource, especially at the plug inadequate resource or when being away from home, its effect is very outstanding.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the circuit theory diagrams of an embodiment of the utility model.
Fig. 2 is the assembling reference diagram of an embodiment of the utility model.
Fig. 3 is the assembling reference diagram of an embodiment of the utility model.
Embodiment
With reference to figure 1, a plurality of output sockets 3 that present embodiment mainly includes the input socket 1 of three parallel connections, the reduction voltage circuit 2 that is connected with described input socket 1 and links to each other with described reduction voltage circuit 2;
In addition, described input socket 1 also leads to a directly output branch road 4, and the output of described direct output branch road 4 is connected to a plug 5.
The main function components of present embodiment includes the two large divisions: reduction voltage circuit 2 and direct output branch road 4, and wherein, the main effect of reduction voltage circuit 2 is to make present embodiment provide power supply to portable electric appts; In addition, in conjunction with direct output circuit 4, present embodiment is attached on the laptop, do not influencing under the normal situation about using of this laptop self, be equipped with the interface of corresponding specification, can obtain primary power from the laptop power supply unit.During specific implementation, the output of described direct output circuit 4 can directly be fixedlyed connected (as Fig. 2) with plug 5, also can be connected to plug 5 (as Fig. 3) by a socket (DC Jack) 6 with pulling out.
Describe the structure and the function of each part mentioned above in detail below with reference to Fig. 2.
As shown in Figure 2, the utility model can be attached on the power supply unit 8 of laptop 7 and use, its input socket 1 can be inserted the plug of the power supply unit 7 of laptop 7, because the power supply unit plug specification of the laptop of different model or brand is not quite similar on the market, therefore on present embodiment, a plurality of input sockets 1 that are complementary with the power supply unit plug specification of different brands and model respectively can be set, correspondingly, described plug 5 also is configured to corresponding, identical with the specification of described power supply unit plug with output socket 1.
And being output voltages to power supply unit 8, the effect of reduction voltage circuit 2 carries out step-down, because the operating voltage great majority of portable type electronic product in the market are 5V DC power supply (DC), and the power supply unit output voltage of laptop is generally 9～24VDC, and power is all very big, therefore, the sub-fraction of described power supply unit output voltage can be shunted and be depressurized to after the 5VDC, provide power supply to the portable type electronic product that is operated in 5VDC, and can not have influence on the working power demand of laptop; And because present embodiment in use, is to be serially connected on the power supply unit 8, therefore, need not laptop 7 starts, as long as power supply unit 8 has the civil power input, present embodiment gets final product operate as normal.
In addition, directly the effect of output branch road 4 is that the output voltage of power supply unit 8 is not made any change, directly output in the laptop 7 by plug 5, therefore, to not disturbing mutually between the power supply of laptop 7 and the power supply, can not produce any influence to other portable type electronic products.
In addition, the present embodiment rechargeable battery pack 10 that also is provided with a charging circuit 9 that links to each other with described output port and reduction voltage circuit and links to each other with described charging circuit 9.Perhaps, in case of necessity, a booster circuit 11 that links to each other with described reduction voltage circuit and charging circuit can also be set.Thereby, when power supply unit is connected with power supply, can charge to while rechargeable battery set 10, when power supply unit and power supply disconnection, also can be the user one stand-by power supply is provided, give other power electronic equipment.
In addition, because the outlet of the 5V portable type electronic product of different cultivars also is not quite similar, the output socket 3 of present embodiment also is configured to a plurality of quantity and multiple shape, as USB interface, current and power supply socket (DC Jack) etc., to mate the attaching plug of different portable type electronic products, simultaneously, owing to be provided with a plurality of not output sockets 3, present embodiment can provide power supply to one or more portable electric appts simultaneously.Thereby provide cost savings, space and socket resource, especially at the plug inadequate resource or when being away from home, its effect is very outstanding.
In addition, consider that present embodiment also can be provided with the relay indicating light LED that is connected on the described reduction voltage circuit 2, be connected the charging indicator light Charge LED on the charging circuit as auxiliary and standby functions.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (6)
1, a kind of voltage conversion device that is attached on the laptop power supply unit, include continuous output socket of input socket, the reduction voltage circuit that is connected with described input socket, described reduction voltage circuit and a direct output circuit of drawing from described input socket, it is characterized in that the power supply unit plug of the specification of described input socket and laptop is complementary; And the output of described direct output branch road is connected at least one plug, and the described plug specification correspondingly power supply unit plug with described laptop is identical.
2, the voltage conversion device that is attached on the laptop power supply unit as claimed in claim 1, it is characterized in that, this device includes a plurality of input sockets, and the specification of each input socket is complementary with the power supply unit plug of different laptop respectively; And described direct output branch road is connected to the plug identical with the power supply unit plug of described laptop accordingly.
3, the voltage conversion device that is attached on the laptop power supply unit as claimed in claim 2, it is characterized in that this device also includes: the charging circuit that links to each other with described reduction voltage circuit, the rechargeable battery pack that links to each other with described charging circuit and the booster circuit that links to each other with described rechargeable battery pack and output socket.
As each described voltage conversion device that is attached on the laptop power supply unit among the claim 1-3, it is characterized in that 4, described output socket is one or more in USB interface, the DC power supply socket.
5, the voltage conversion device that is attached on the laptop power supply unit as claimed in claim 1 is characterized in that, the output of described direct output circuit is directly fixedlyed connected with described plug.
6, as claim 1 or the 5 described voltage conversion devices that are attached on the laptop power supply unit, it is characterized in that the output of described direct output circuit can be connected with described plug by a socket with pulling out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954433U CN201238259Y (en) | 2008-07-08 | 2008-07-08 | Voltage conversion apparatus adhered to power supply of notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954433U CN201238259Y (en) | 2008-07-08 | 2008-07-08 | Voltage conversion apparatus adhered to power supply of notebook computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238259Y true CN201238259Y (en) | 2009-05-13 |
Family
ID=40650992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200954433U Expired - Fee Related CN201238259Y (en) | 2008-07-08 | 2008-07-08 | Voltage conversion apparatus adhered to power supply of notebook computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238259Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176580A (en) * | 2011-01-30 | 2011-09-07 | 冯钢 | Simple power supply commutator |
| CN107370504A (en) * | 2017-06-14 | 2017-11-21 | 华讯方舟科技（湖北）有限公司 | A kind of microwave frequency changer circuit and frequency converter |
-
2008
- 2008-07-08 CN CNU2008200954433U patent/CN201238259Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176580A (en) * | 2011-01-30 | 2011-09-07 | 冯钢 | Simple power supply commutator |
| CN102176580B (en) * | 2011-01-30 | 2013-03-27 | 冯钢 | Simple power supply commutator |
| CN107370504A (en) * | 2017-06-14 | 2017-11-21 | 华讯方舟科技（湖北）有限公司 | A kind of microwave frequency changer circuit and frequency converter |
| CN107370504B (en) * | 2017-06-14 | 2020-02-21 | 华讯方舟科技（湖北）有限公司 | Microwave frequency conversion circuit and frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120708 |