CN203826727U - Alternating current and direct current outputting extension socket - Google Patents
Alternating current and direct current outputting extension socket Download PDFInfo
- Publication number
- CN203826727U CN203826727U CN201420062194.3U CN201420062194U CN203826727U CN 203826727 U CN203826727 U CN 203826727U CN 201420062194 U CN201420062194 U CN 201420062194U CN 203826727 U CN203826727 U CN 203826727U
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- socket
- output
- module
- insert row
- transformer
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an alternating current and direct current outputting extension socket, wherein at least one alternating current socket, at least one USB socket and a circuit board which is connected between the alternating current socket and the USB socket are fixed on a bottom shell; the alternating current socket is connected to a 220 V power source through a wire cable and a plug head; the circuit board comprises a switch control module, a rectification module, a first filtering module, a voltage transformer T1 and a second filtering module; the rectification module, the first filtering module, the voltage transformer T1 and the second filtering module are orderly connected; +5V direct current voltage is output to the USB socket by the second filtering module. The extension socket is provided with the alternating current socket and the USB socket at the same time, no charger needs to be provided for an electronic product, portability is realized, and the extension socket is improved in utilization rate; alternating current and direct current conversion is realized in the extension socket through the rectification module, the first filtering module, the switch control module, the voltage transformer T1 and the second filtering module; constant +5V direct current voltage is supplied to the USB socket; the extension socket is suitable for various kinds of hot-plug and plug-and-play charging type electronic equipement.
Description
Technical field
The utility model relates to a kind of insert row, relates in particular to a kind of output AC electricity and galvanic insert row.
Background technology
Electric power plug socket is the device with one or more supply sockets, can insert multiple connection plug by it, is convenient to connect with other circuit.Supply socket is the electric interfaces that power supply is provided for household electrical appliance, is also in design of residence, to use more electrical accessory, and it and people's life have ten close relationships.
Common electric power plug socket can provide 220v alternating current for us, but along with the use of the electronic products such as mobile phone, mp3, mp4 is more and more, USB is because the characteristic of supporting hot plug and plug and play is used widely.Existing insert row generally can only, for electrical equipment provides 220v alternating current, because the electronic products such as mobile phone, mp3, mp4 more and more adopt USB interface charging, and need special USB charger charging, and common electric power plug socket cannot provide USB interface.
Under traditional charging modes, DC charger need to be plugged on AC power insert row, the direct voltage of the USB interface output of recycling DC charger charges to electronic product, especially in the time that multiple electronic products are charged simultaneously, need corresponding multiple electronic product to prepare multiple chargers, and need to prepare AC power insert row, be inconvenient to carry.
Utility model content
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, a kind of output AC electricity and galvanic insert row are provided, this insert row is equipped with AC socket and USB socket simultaneously, without providing charger to electronic product, more be easy to carry, and improve the utilance of insert row, this insert row passes through rectification module, the first filtration module, switch control module, transformer T1 and the second filtration module are realized combined-voltage conversion, thereby for USB socket provides constant+5V direct voltage, be applicable to multiple hot plug-pull, the electronic equipment of plug and play charging type.
For solving the problems of the technologies described above, the utility model adopts following technical scheme.
A kind of output AC electricity and galvanic insert row, it includes drain pan and face-piece, is fixed with at least one AC socket, at least one USB socket and is connected in the wiring board between AC socket and USB socket on described drain pan, rectification module, the first filtration module, transformer T1 and the second filtration module that described wiring board includes switch control module and connects successively, the input side of described rectification module is connected with AC socket, described switch control module includes PWM chip U1 and metal-oxide-semiconductor Q1, the control end OUT output PWM modulation signal of described PWM chip U1 is to the grid of metal-oxide-semiconductor Q1, the source electrode of described metal-oxide-semiconductor Q1 connects front end power supply ground by resistance R 23, the drain electrode of this metal-oxide-semiconductor Q1 is connected in the second end of the armature winding of transformer T1, the first end of the armature winding of transformer T1 is connected with the output of the first filtration module, the second end of the armature winding of described transformer T1 is connected in the anode of sustained diode 3, the negative electrode of sustained diode 3 is connected in the first end of the armature winding of transformer T1 by the resistance R 9 of connecting successively and capacitor C 1, one termination front end power supply ground of the first secondary winding of described transformer T1, the other end of this first secondary winding is connected in the sampling end FB of PWM chip U1 by sampling resistor R17, one termination back-end power supply ground of the second subprime winding of described transformer T1, the other end of this second subprime winding outputs voltage signal to the second filtration module, described the second filtration module output+5V direct voltage is to USB socket.
Preferably, described rectification module is the rectifier bridge that four diodes form.
Preferably, described the first filtration module and the second filtration module are pi type filter.
Preferably, described the first secondary winding is also connected front end power supply ground by resistance R 16 and the resistance R 18 of connecting successively with the tie point of sampling resistor R17, and described the first secondary winding is also connected front end power supply ground by resistance R 14, diode D9 and the capacitor C 9 of connecting successively with the tie point of sampling resistor R17.
Preferably, the model of described PWM chip U1 is AP3771.
Preferably, the quantity of described USB socket is two.
Preferably, the quantity of described AC socket is two.
Preferably, described face-piece is provided with face-piece decoration.
Preferably, on described face-piece decoration, be pasted with LOGO paster.
In the disclosed output AC electricity of the utility model and galvanic insert row, on drain pan, be fixed with at least one AC socket, at least one USB socket and is connected in the wiring board between AC socket and USB socket, AC socket is connected in 220V power supply by cable and plug, rectification module, the first filtration module, transformer T1 and the second filtration module that wiring board includes switch control module and connects successively, the second filtration module output+5V direct voltage is to USB socket.This insert row is equipped with AC socket and USB socket simultaneously, without providing charger to electronic product, more be easy to carry, and improve the utilance of insert row, this insert row is realized combined-voltage conversion by rectification module, the first filtration module, switch control module, transformer T1 and the second filtration module, thereby for USB socket provides constant+5V direct voltage, be applicable to the electronic equipment of multiple hot plug-pull, plug and play charging type.
Brief description of the drawings
Fig. 1 is exploded view of the present utility model.
Fig. 2 is the circuit theory diagrams of wiring board.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in more detail.
The utility model discloses a kind of output AC electricity and galvanic insert row, shown in Fig. 1 and Fig. 2, it includes drain pan 1 and face-piece 2, is fixed with at least one AC socket 3, at least one USB socket 5 and one is connected in the wiring board 7 between AC socket 3 and USB socket 5 on drain pan 1.
About the electrical connection of this insert row inside, rectification module 10, the first filtration module 11, transformer T1 and the second filtration module 13 that wiring board 7 includes switch control module 12 and connects successively, the input side of rectification module 10 is connected with AC socket 3.Wherein, rectification module 10 is preferably the rectifier bridge that four diodes form, the first filtration module 11 and the second filtration module 13 are pi type filter, the armature winding of transformer T1 is drawn by the 3rd pin and the 5th pin, the first secondary winding is drawn by the 1st pin and the 7th pin, and second subprime winding is drawn by the 8th pin and the 10th pin.
For the direct voltage of stable output, switch control module 12 includes PWM chip U1 and metal-oxide-semiconductor Q1, the model of this PWM chip U1 is preferably AP3771, the control end OUT output PWM modulation signal of PWM chip U1 is to the grid of metal-oxide-semiconductor Q1, the source electrode of metal-oxide-semiconductor Q1 connects front end power supply ground by resistance R 23, the drain electrode of this metal-oxide-semiconductor Q1 is connected in the second end of the armature winding of transformer T1, the first end of the armature winding of transformer T1 is connected with the output of the first filtration module 11, the second end of the armature winding of transformer T1 is connected in the anode of sustained diode 3, the negative electrode of sustained diode 3 is connected in the first end of the armature winding of transformer T1 by the resistance R 9 of connecting successively and capacitor C 1, one termination front end power supply ground of the first secondary winding of transformer T1, the other end of this first secondary winding is connected in the sampling end FB of PWM chip U1 by sampling resistor R17, the first secondary winding is also connected front end power supply ground by resistance R 16 and the resistance R 18 of connecting successively with the tie point of sampling resistor R17, the first secondary winding with the tie point of sampling resistor R17 also by the resistance R 14 of connecting successively, diode D9 is connected front end power supply ground with capacitor C 9, under the dividing potential drop effect of resistance R 16 and resistance R 18, make resistance R 17 places produce voltage, and this Voltage Feedback is returned to PWM chip U1, to realize the real-time sampling to transformer T1 output voltage, PWM chip U1 adjusts the duty ratio of its output PWM modulation signal by this sampled voltage.One termination back-end power supply ground of the second subprime winding of transformer T1, the other end of this second subprime winding outputs voltage signal to the second filtration module 13, the second export+5V of filtration module 13 direct voltages to USB socket 5.
This PWM chip U1 is by sampling to the output voltage of transformer T1, and adjust in real time the PWM modulation signal of its output according to this sampled voltage, this PWM modulation signal is for controlling the on-off of metal-oxide-semiconductor Q1, by adjusting frequency and the pulsewidth of PWM modulation signal, again in conjunction with the energy storage of the circuit that formed by sustained diode 3, resistance R 9 and capacitor C 1, releasing can, make the second subprime winding of transformer T1 export continual and steady direct voltage, thereby realize DC-to-DC conversion.By the wiring board of foregoing circuit principle, make the AC-DC conversion of insert row reliable and stable, thereby be applicable to the electronic equipment of multiple hot plug-pull, plug and play charging type.
As a kind of optimal way, the quantity of USB socket 5 is two, and the quantity of AC socket 3 is two.Face-piece 2 is provided with face-piece decoration 8, and is pasted with LOGO paster on face-piece decoration 8.
In the disclosed output AC electricity of the utility model and galvanic insert row, on drain pan 1, be fixed with at least one AC socket 3, at least one USB socket 5 and one is connected in the wiring board 7 between AC socket 3 and USB socket 5, AC socket 3 is connected in 220V power supply by cable and plug, wiring board 7 includes rectification module 10, the first filtration module 11, transformer T1 and second filtration module 13, the second export+5V of filtration module 13 direct voltages of switch control module 12 and connection successively to USB socket 5.This insert row is equipped with AC socket 3 and USB socket 5 simultaneously, without providing charger to electronic product, more be easy to carry, and improve the utilance of insert row, this insert row is realized combined-voltage conversion by rectification module 10, the first filtration module 11, switch control module 12, transformer T1 and the second filtration module 13, thereby for USB socket 5 provides constant+5V direct voltage, be applicable to the electronic equipment of multiple hot plug-pull, plug and play charging type.
The above is the utility model preferred embodiment, is not limited to the utility model, all amendments of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that the utility model protects.
Claims (9)
1. output AC electricity and a galvanic insert row, is characterized in that, includes drain pan and face-piece, is fixed with at least one AC socket, at least one USB socket and is connected in the wiring board between AC socket and USB socket on described drain pan;
Rectification module, the first filtration module, transformer T1 and the second filtration module that described wiring board includes switch control module and connects successively, the input side of described rectification module is connected with AC socket;
Described switch control module includes PWM chip U1 and metal-oxide-semiconductor Q1, the control end OUT output PWM modulation signal of described PWM chip U1 is to the grid of metal-oxide-semiconductor Q1, the source electrode of described metal-oxide-semiconductor Q1 connects front end power supply ground by resistance R 23, the drain electrode of this metal-oxide-semiconductor Q1 is connected in the second end of the armature winding of transformer T1, the first end of the armature winding of transformer T1 is connected with the output of the first filtration module, the second end of the armature winding of described transformer T1 is connected in the anode of sustained diode 3, the negative electrode of sustained diode 3 is connected in the first end of the armature winding of transformer T1 by the resistance R 9 of connecting successively and capacitor C 1, one termination front end power supply ground of the first secondary winding of described transformer T1, the other end of this first secondary winding is connected in the sampling end FB of PWM chip U1 by sampling resistor R17, one termination back-end power supply ground of the second subprime winding of described transformer T1, the other end of this second subprime winding outputs voltage signal to the second filtration module, described the second filtration module output+5V direct voltage is to USB socket.
2. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, described rectification module is the rectifier bridge that four diodes form.
3. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, described the first filtration module and the second filtration module are pi type filter.
4. output AC electricity as claimed in claim 1 and galvanic insert row, it is characterized in that, described the first secondary winding is also connected front end power supply ground by resistance R 16 and the resistance R 18 of connecting successively with the tie point of sampling resistor R17, and described the first secondary winding is also connected front end power supply ground by resistance R 14, diode D9 and the capacitor C 9 of connecting successively with the tie point of sampling resistor R17.
5. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, the model of described PWM chip U1 is AP3771.
6. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, the quantity of described USB socket is two.
7. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, the quantity of described AC socket is two.
8. output AC electricity as claimed in claim 1 and galvanic insert row, is characterized in that, described face-piece is provided with face-piece decoration.
9. output AC electricity as claimed in claim 8 and galvanic insert row, is characterized in that, on described face-piece decoration, is pasted with LOGO paster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062194.3U CN203826727U (en) | 2014-02-11 | 2014-02-11 | Alternating current and direct current outputting extension socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062194.3U CN203826727U (en) | 2014-02-11 | 2014-02-11 | Alternating current and direct current outputting extension socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826727U true CN203826727U (en) | 2014-09-10 |
Family
ID=51482192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420062194.3U Expired - Fee Related CN203826727U (en) | 2014-02-11 | 2014-02-11 | Alternating current and direct current outputting extension socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904666A (en) * | 2019-03-18 | 2019-06-18 | 江西吉安奥海科技有限公司 | Portable multi-function charging socket |
-
2014
- 2014-02-11 CN CN201420062194.3U patent/CN203826727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904666A (en) * | 2019-03-18 | 2019-06-18 | 江西吉安奥海科技有限公司 | Portable multi-function charging socket |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170211 |