CN204986890U - Take charge lamp stand of function of USB - Google Patents
Take charge lamp stand of function of USB Download PDFInfo
- Publication number
- CN204986890U CN204986890U CN201520592346.5U CN201520592346U CN204986890U CN 204986890 U CN204986890 U CN 204986890U CN 201520592346 U CN201520592346 U CN 201520592346U CN 204986890 U CN204986890 U CN 204986890U
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- interface
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- usb
- bulb
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Abstract
The utility model discloses a take charge lamp stand of function of USB, include: the lamp stand body, a bulb interface is installed for installing the bulb on the lamp stand body, a municipality's electrical interface is installed for inserting the commercial power on the lamp stand body, its connection the bulb interface, still include: install voltage conversion module on the lamp stand body, its input is connected the 5V direct current that is obtained by the commercial power conversion is exported to municipality's electrical interface, its output, install USB interface module on the lamp stand body, its input is connected the output of voltage conversion module, its output will the 5V direct current exports external user terminal to. The utility model discloses both can provide daily illumination, the USB that again can the rational utilization includes voltage conversion module and USB interface module charges conversion equipment and charges to user terminal such as cell -phones, and convenience of customers can charge when user terminal such as cell -phone need charge can't find under the circumstances of charger at any time.
Description
Technical field
The present invention relates to a kind of lamp socket, particularly a kind of lamp socket with USB charge function.
Background technology
Lamp socket is common electric equipment, for the position of fixing bulb, and bulb contact is connected with power supply.Lamp socket almost be unable to do without daily life, lamp socket a multitude of names on market, and shape differs, the function of lamp socket also not only limitation illumination is provided, the utility model provides a kind of with USB interface, can to the lamp socket of the user terminal chargings such as mobile phone.
Summary of the invention
The object of the present invention is to provide a kind of lamp socket with USB charge function, normal lighting can be provided to user, again for the daily charging of the user terminals such as mobile phone provides convenient.
According to an aspect of the present invention, provide a kind of lamp socket with USB charge function, comprising:
Lamp holder body;
For the bulb interface of bulb mounting, be arranged in described lamp holder body;
For accessing the commercial power interface of civil power, be arranged in described lamp holder body, it connects described bulb interface;
It is characterized in that, also comprise:
Be arranged on the voltage transformation module in described lamp holder body, its input connects described commercial power interface, the 5V direct current that the output of its output is changed by civil power and obtained;
Be arranged on the usb interface module in described lamp holder body, its input connects the output of described voltage transformation module, and its output exports described 5V direct current to external user terminal.
Preferably, the power indicating circuit in parallel with described bulb interface is also comprised.
Preferably, described power indicating circuit comprises:
Light emitting diode, its negative electrode connects one end of described bulb interface;
Current-limiting resistance, its one end connects the anode of described light emitting diode, and the other end connects the other end of described bulb interface;
Zener diode, its negative electrode connects the anode of described light emitting diode, and its anode connects the negative electrode of described light emitting diode.
Preferably, described voltage transformation module comprises:
Rectification circuit, its input connects described commercial power interface;
Auto-excitation type transforming circuit, its input connects the output of described half-wave rectifying circuit;
Voltage follower circuit, its input connects the output of described auto-excitation type transforming circuit, and its output connects described usb interface module.
Preferably, described usb interface module comprises the multiple USB interfaces be connected with the output of described voltage transformation module respectively.
Compared with prior art, beneficial effect of the present invention is:
The utility model both can provide normal lighting, again can Appropriate application comprise voltage transformation module and usb interface module USB charge conversion equipment the user terminals such as mobile phone are charged, facilitate user when can not find charger, the user terminals such as mobile phone need charge at any time during charging.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the lamp socket of the band USB charge function that the utility model embodiment provides;
Fig. 2 is the schematic diagram of the power indicating circuit that the utility model embodiment provides;
The schematic diagram of the voltage transformation module that Fig. 3 provides for the utility model embodiment;
The schematic diagram of the usb interface module that Fig. 4 provides for the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the functional block diagram of the lamp socket of the band USB charge function that the utility model embodiment provides, and described lamp socket comprises lamp holder body (not shown in figure 1), also comprises:
Bulb interface, for bulb mounting;
Commercial power interface, connects described bulb interface, for accessing civil power, and accessed civil power being supplied to the bulb be arranged on described bulb interface by described bulb interface, realizing illumination functions;
Voltage transformation module, its input connects described commercial power interface, for accessing civil power from its input, and accessed civil power is converted to the direct current of 5V/1A;
Usb interface module, its input connects the output of described voltage transformation module, and its output exports the direct current of described 5V/1A to external user terminal, namely the 5V/1A direct current that described voltage transformation module exports is assigned to each USB port.
Above-mentioned bulb interface, commercial power interface, voltage transformation module and usb interface module are installed in lamp holder body.
The lamp socket of band USB charge function of the present utility model, specific works principle is as follows:
1) bulb normal lighting part
After bulb is installed to bulb interface, the 220V/50Hz voltage of commercial power interface access exports bulb to, and bulb normally works.
2) live part of the user terminal such as mobile phone
When the user terminal such as mobile phone connect USB data line and via USB interface on USB data line connecting lamp seat body time, be equivalent to user terminal and be connected to a charger, lamp socket starts to charge to user terminal, owing to lamp socket can be arranged multiple USB interface (such as 3), be convenient for people to charge to multiple user terminal.Wherein, voltage transformation module converts the alternating current of 220V to mainly through transformer the direct current of 5V, for user terminal chargings such as mobile phones, no matter is Android mobile phone, or i Phone, as long as data wire can mate with USB interface, can both charge.
The lamp socket of the band USB charge function that the utility model provides, its desk lamp illumination section is two separate parts with the part of charging to user terminal, be integrated in a lamp holder body, normal illumination function can be realized, can charge to user terminals such as mobile phones again.
Fig. 2 is the schematic diagram of the power indicating circuit that the utility model embodiment provides, and as shown in Figure 2, comprises the power indicating circuit in parallel with described bulb interface, specifically comprises:
LED, its negative electrode connects one end of described bulb interface;
Current-limiting resistance R, its one end connects the anode of described LED, and the other end connects the other end of described bulb interface;
Zener diode VD, its negative electrode connects the anode of described LED, and its anode connects the negative electrode of described LED.
Described commercial power interface access 220V/50Hz civil power, and 220V/50Hz alternating voltage is outputted to the bulb be arranged in described bulb interface, realize power supply.For the lamp socket of desk lamp, after desk lamp switch is opened, the alternating current of 220V/50Hz is to bulb powered, and bulb lights.
LED shown in Fig. 2 is used as power supply indicator, and power supply is connected, and indicator lamp lights, and R is for the protection of the use of LED.
The schematic diagram of the voltage transformation module that Fig. 3 provides for the utility model embodiment, as shown in Figure 3, comprising:
Rectification circuit, the present embodiment adopts half-wave rectifying circuit, and its input connects described commercial power interface, access 220V/50Hz alternating current;
Auto-excitation type transforming circuit, its input connects the output of described half-wave rectifying circuit;
Voltage follower circuit, its input connects the output of described auto-excitation type transforming circuit, and its output connects described usb interface module.
Further, described half-wave rectifying circuit comprises:
Resistance R1, its one end connects one end of commercial power interface;
Filter capacitor C1, its one end connects the other end of R1;
Commutation diode D3, its negative electrode connects the other end of commercial power interface, and its anode connects the other end of described C1;
Wherein, the 220V/50Hz alternating current of described half-wave rectifying circuit access, after D3 halfwave rectifier, C1 filtering, obtains about+300V voltage.,
Further, described auto-excitation type transforming circuit comprises:
Resistance R2, R3, R6, R7, electric capacity C2, C4;
Triode Q1, its colelctor electrode connects one end of C1 via R3, its grounded emitter;
Triode Q2, its colelctor electrode connects one end of C1 via R7, and its emitter stage is via R6 ground connection, and its base stage connects the colelctor electrode of Q1;
Voltage-stabiliser tube VD1, its anode connects the base stage of Q1 via R2, and negative electrode is via C4 ground connection;
Diode D1, its negative electrode connects the colelctor electrode of Q1 via R8, C2, its plus earth;
The armature winding L1 of switch transformer T, its one end connects one end of described C1, and the other end connects the colelctor electrode of Q2;
The armature winding L2 of switch transformer T, its one end connects the negative electrode of VD1, and the other end connects the negative electrode of D1;
Resistance R4, its one end connects the base stage of Q1, and the other end connects the emitter stage of Q2;
Resistance R5, its one end connects the negative electrode of VD1, other end base;
Wherein, obtain about+300V voltage after C1 filtering, a road is added to the colelctor electrode of Q2 through L1, and another road is added to the base stage of Q2 through starting resistance R3, and Q2 enters lightly conducting state, produces just lower negative induced electromotive force in L1, produces upper negative lower positive induced electromotive force in L2; Induced electromotive force in L2 is through R8, C2 positive feedback to the base stage of Q2, and Q2 enters saturation state rapidly; During Q2 is in saturation state, because electric current approximately linear in L1 increases, produce stable induced electromotive force in L2, described induced electromotive force charges to C2 through R8, Q2, R6, along with the charging of C2, the base voltage of Q2 declines gradually, and when dropping to a certain value, Q2 exits saturation state, the electric current flow through in L1 reduces, induced electromotive force polarity inversion in L1, L2, under the positive feedback effect of R8, C2, Q2 retreats to cut-off state by saturation state rapidly; At this moment ,+300V voltage is through R3, R8, L2, R5 to C2 reverse charging, and C2 right-hand member current potential rises gradually, and when rising to certain value, under the effect of R3, Q2 is conducting again, repeats said process, goes round and begins again, and forms self-oscillation.
Further, the element such as VD1, Q1 composition mu balanced circuit.If output voltage is too high, then the induced voltage of L2 also will raise, and D1 rectification, C4 filtering gained voltage raise.Because VD1 two ends remain the voltage stabilizing value of 5V, the base voltage of Q1 raises, Q1 conducting heighten degree, and namely strengthen the shunting action of Q2 base current, Q2 ends in advance, and output voltage declines.If output voltage reduces, its voltage stabilizing control procedure is contrary to the above.
Further, R6, R4, Q1 form current foldback circuit, if the electric current flowing through Q2 is excessive, the pressure drop on R6 increases, Q1 conducting, and Q2 ends, and prevents Q2 overcurrent damage.
Further, described voltage follower circuit comprises:
The secondary windings L3 of switch transformer T;
Diode D2, its negative electrode connects one end of L3;
Light emitting diode, its anode connects the other end of L3, and its negative electrode connects the anode of D2 via R9;
Electric capacity C3, its one end connects the other end of L3, and its other end connects the anode of D2;
Resistance R10, its one end connects the other end of L3, and its other end connects the anode of D2;
Wherein, in Q2 conduction period, the induced electromotive force polarity in L3 be upper negative under just, D2 ends; Between the Q2 off period, the induced electromotive force polarity in L3 is upper just lower negative, D2 conducting, outwards supply 5V/1A direct current.
Alternatively, the 220V/50Hz alternating current that transformer accesses by transformer, full bridge rectifier, filter circuit, the flow-limiting voltage-stabilizing circuit connected successively, can also be converted to 5V/1A direct current and export by described voltage transformation module.
The schematic diagram of the usb interface module that Fig. 4 provides for the utility model embodiment, as shown in Figure 4, comprises the multiple USB interfaces be connected with the output of described voltage transformation module respectively, such as 3.Usb interface module of the present utility model is assigned to 5V output voltage on each USB interface, ensures that each USB interface mates with the data wire of the user terminals such as mobile phone, provides 5V voltage to charge to user terminals such as mobile phones simultaneously.Three USB interfaces are connected in parallel, and are disposed side by side on the outer ring of lamp holder body.Insert USB interface when charging when user terminal connection data lines such as mobile phones, data wire both positive and negative polarity is connected with USB interface both positive and negative polarity, and the 5V voltage utilizing voltage transformation module to export realizes the charging to user terminals such as mobile phones.
Bulb powered part combines with terminal power pack by the lamp socket that the utility model provides, bulb powered part is mainly used in normal lighting and uses, terminal power pack converts the direct current of 5V to the alternating current of 220V, and the USB interface by matching with the data line interface of the user terminals such as mobile phone, realize the charge function to user terminals such as mobile phones.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (5)
1. the lamp socket with USB charge function, comprising:
Lamp holder body;
For the bulb interface of bulb mounting, be arranged in described lamp holder body;
For accessing the commercial power interface of civil power, be arranged in described lamp holder body, it connects described bulb interface;
It is characterized in that, also comprise:
Be arranged on the voltage transformation module in described lamp holder body, its input connects described commercial power interface, the 5V direct current that the output of its output is changed by civil power and obtained;
Be arranged on the usb interface module in described lamp holder body, its input connects the output of described voltage transformation module, and its output exports described 5V direct current to external user terminal.
2. lamp socket according to claim 1, is characterized in that, also comprises the power indicating circuit in parallel with described bulb interface.
3. lamp socket according to claim 2, is characterized in that, described power indicating circuit comprises:
Light emitting diode, its negative electrode connects one end of described bulb interface;
Current-limiting resistance, its one end connects the anode of described light emitting diode, and the other end connects the other end of described bulb interface;
Zener diode, its negative electrode connects the anode of described light emitting diode, and its anode connects the negative electrode of described light emitting diode.
4. lamp socket according to claim 1, is characterized in that, described voltage transformation module comprises:
Rectification circuit, its input connects described commercial power interface;
Auto-excitation type transforming circuit, its input connects the output of described half-wave rectifying circuit;
Voltage follower circuit, its input connects the output of described auto-excitation type transforming circuit, and its output connects described usb interface module.
5. the lamp socket according to claim 1-4 any one, is characterized in that, described usb interface module comprises the multiple USB interfaces be connected with the output of described voltage transformation module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592346.5U CN204986890U (en) | 2015-08-07 | 2015-08-07 | Take charge lamp stand of function of USB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592346.5U CN204986890U (en) | 2015-08-07 | 2015-08-07 | Take charge lamp stand of function of USB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986890U true CN204986890U (en) | 2016-01-20 |
Family
ID=55121258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520592346.5U Expired - Fee Related CN204986890U (en) | 2015-08-07 | 2015-08-07 | Take charge lamp stand of function of USB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576783A (en) * | 2016-01-21 | 2016-05-11 | 苏州经贸职业技术学院 | Charging circuit |
-
2015
- 2015-08-07 CN CN201520592346.5U patent/CN204986890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576783A (en) * | 2016-01-21 | 2016-05-11 | 苏州经贸职业技术学院 | Charging circuit |
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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: 20160120 Termination date: 20210807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |