CN204131189U - The two-sided USB adapter of multiplex roles - Google Patents
The two-sided USB adapter of multiplex roles Download PDFInfo
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- CN204131189U CN204131189U CN201420623685.0U CN201420623685U CN204131189U CN 204131189 U CN204131189 U CN 204131189U CN 201420623685 U CN201420623685 U CN 201420623685U CN 204131189 U CN204131189 U CN 204131189U
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Abstract
The utility model discloses the two-sided USB adapter of a kind of multiplex roles, comprise housing, circuit board is provided with in housing, housing is provided with power input interface and power output interface, power input interface and power output interface are electrical connected with circuit board respectively, circuit board is arranged and controls power input interface to the charge control module of power output interface charge condition; Power output interface is at least two, and at least two power output interfaces are set up in parallel at grade, and power output interface comprises that be electrically connected with external USB plug, for inserting forward or backwards for USB plug USB female seat; USB female seat comprises the metal shell of the both ends open be arranged on housing and is positioned at the insulated rubber core in metal shell centre position; Insulated rubber core coordinates with metal shell and inserts for USB plug.The two-sided USB adapter of multiplex roles of the present utility model not only can charge at least two smart machines simultaneously, and power output interface all can normally connect under positive and negative two kinds of inserting mode, very convenient practicality.
Description
Technical field
The utility model relates to power supply and distribution technique field, particularly relates to the two-sided USB adapter of a kind of multiplex roles.
Background technology
Universal along with handheld electronics device, increasing smart machine, particularly smart mobile phone all adopt USB interface to be the built-in battery charging of equipment.But the USB electric supply installation that currently available technology provides often only has single USB, cannot simultaneously for multiple stage needs the smart machine charging of charging.Further, USB of the prior art, in order to prevent reverse polarity connection, only allow to be inserted by the one side of fixing, anti-inserted, insert not enter, insertion can damage device by force, must must see clearly and aim at and could correctly insert, waste time and energy so very much, bring very large inconvenience.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of multiplex roles of improvement two-sided USB adapter.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of multiplex roles two-sided USB adapter, comprise housing, circuit board is provided with in housing, housing is provided with power input interface and power output interface, power input interface and power output interface are electrical connected with circuit board respectively, circuit board is arranged and controls power input interface to the charge control module of power output interface charge condition; Power output interface is at least two, and at least two power output interfaces are set up in parallel at grade, and power output interface comprises that be electrically connected with external USB plug, for inserting forward or backwards for USB plug USB female seat; USB female seat comprises the metal shell of the both ends open be arranged on housing and is positioned at the insulated rubber core in metal shell centre position; The first coupling assembling be connected with charge control module is provided with between insulated rubber core and the upper surface of metal shell, be provided with the second coupling assembling be connected with charge control module between insulated rubber core and the lower surface of metal shell, the first coupling assembling and the second coupling assembling are fixed on insulated rubber core; Insulated rubber core coordinates with metal shell and inserts for USB plug.
Preferably, the two-sided USB adapter of multiplex roles also comprises the power input plug be connected with power input interface, and power input plug is mains plug or Vehicular cigarette lighter plug.
Preferably, at least two charge control module are corresponding with at least two power output interfaces to be respectively connected, and each charge control module comprises:
The detection be connected with corresponding power output interface and current-limiting circuit;
With the control circuit detected and current-limiting circuit is connected; And
The identification be connected with corresponding power output interface, control circuit and charge control module and switching circuit;
Wherein, USB plug judges whether meet current charge protocol according to the detection signal of identification and switching circuit, and USB plug optionally sends output signal by power output interface according to charge protocol, detection and current-limiting circuit collect the output signal of power output interface, and control circuit controls current charge condition according to output signal.
Preferably, control circuit comprises:
With detection and current-limiting circuit is connected, for by output signal and threshold value compare and export the comparing unit of compare result signal;
Be connected with comparing unit, for according to compare result signal to identify and switching circuit optionally sends Continuity signal and optionally to detecting and the identification maneuver switch element of current-limiting circuit sending action signal.
Preferably, control circuit also comprises and being connected with comparing unit, for controlling the current limliting shutoff unit detected and current-limiting circuit turns off, makes power input interface disconnect to the charge circuit of power output interface according to compare result signal.
Preferably, power output interface is USB female seat; Detection and current-limiting circuit comprise the first switching tube and the 7th resistance, first drain electrode of the first switching tube is connected with the second drain electrode and accesses the negative power end of USB female seat, and be connected to control circuit by the 7th resistance, thus the output signal of power output interface is accessed to control circuit; First grid is connected with second grid and is connected to control circuit, the actuating signal exported with reception control circuit, makes the first switching tube cut-off and conducting once; Ground connection after first source electrode is connected with the second source electrode.
Preferably, identification and switching circuit comprise the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 5th electric capacity and second switch pipe, power input interface is accessed after the negative power end of USB female seat is connected with positive power source terminal by the 5th electric capacity, thus make the charging signals of power input interface access USB plug by positive power source terminal, then exported by negative power end; By the 4th grounding through resistance after correction data end is connected with negative data end by the first resistance, thus USB plug is made to judge whether to meet charge protocol by the voltage detecting correction data end; The ungrounded end of the 4th resistance is connected to power input interface by the 3rd resistance that is in series successively, the second resistance; The grounded emitter of second switch pipe, collector electrode is connected between the second resistance and the 3rd resistance, and base stage by the 5th resistance connection control circuit, thus receives Continuity signal.
Preferably, power output interface and charge control module are five.
Enforcement the beneficial effects of the utility model are: the two-sided USB adapter of multiplex roles of the present utility model not only has at least two power output interfaces, can charge at least two smart machines simultaneously, and, power output interface all can normally connect under positive and negative two kinds of inserting mode, very convenient practicality.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the overall structure schematic diagram of the two-sided USB adapter of multiplex roles in some embodiments of the utility model;
Fig. 2 is the stereogram of USB female seat in some embodiments of the utility model;
Fig. 3 is the stereogram of USB female seat in other embodiments of the utility model;
Fig. 4 is the front view of USB female seat in some embodiments of the utility model;
Fig. 5 is the model calling schematic diagram of the two-sided USB adapter of multiplex roles in some embodiments of the utility model;
Fig. 6 is the circuit connection diagram of detection and current-limiting circuit, power output interface and identification and switching circuit in some embodiments of the utility model;
Fig. 7 is the circuit diagram of control circuit in some embodiments of the utility model;
Fig. 8 is the circuit diagram of modules on circuit board in some embodiments of the utility model.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
Fig. 1 shows the two-sided USB adapter of multiplex roles in some embodiments of the utility model, it comprises housing 1, the circuit board (not shown) be arranged in housing 1, the power input interface (not shown) be arranged on housing 1, the power input plug (not shown) that is arranged on the power output interface 2 on housing 1 and is connected with power input interface.Power input interface and circuit board are electrical connected, for accessing power supply to the two-sided USB adapter of multiplex roles thus charged by power output interface 2 pairs of smart machines.Power output interface 2 is at least two, is electrical connected respectively with circuit board.Circuit board is provided with charge control module, for controlling the charge condition of power input interface to power output interface 2.As selection, in the present embodiment, power input plug can arrange and also can not arrange.
Wherein, power input plug is mains plug or Vehicular cigarette lighter plug, make the two-sided USB adapter of the multiplex roles in the utility model embodiment have multiple power sources access way, when power input plug is mains plug, directly can access civil power by commercial power socket; When power input plug is Vehicular cigarette lighter plug, charge by vehicle-mounted cigarette lighter socket access power supply.As selection, power input plug can also be other forms of plug.
At least two power output interfaces 2 are set up in parallel at grade, and preferably, power output interface 2 is five.Shown in composition graphs 2, Fig. 3 and Fig. 4, power output interface 2 comprises that be electrically connected with external USB plug, for inserting forward or backwards for described USB plug USB female seat 2.USB female seat 2 comprises the metal shell 21 of the both ends open be arranged on housing 1, is positioned at the insulated rubber core 22 in metal shell 21 centre position, and insulated rubber core 22 coordinates with metal shell 21 and inserts forward or backwards for USB plug.As in Figure 2-4, USB plug can be inserted between the upper surface of metal shell 21 and insulated rubber core 22, also can insert between the lower surface of metal shell 21 and insulated rubber core 22.Understandably, the first coupling assembling 23 (as shown in Figure 2, Figure 4 shows) be connected with charge control module 5 is provided with between insulated rubber core 22 and the upper surface of metal shell 21, the second coupling assembling 24 (as shown in Figure 3, Figure 4) be connected with charge control module 5 is provided with between insulated rubber core 22 and the lower surface of metal shell 21, first coupling assembling 23 and the second coupling assembling 24 are fixed on insulated rubber core 22, to realize being electrically connected with charge control module when inserting USB female seat 2 forward or backwards.
As shown in Figure 5, the quantity of at least two charge control module 5 is corresponding with at least two power output interfaces 2 to be respectively connected, and preferably, shown in composition graphs 8, charge control module 5 is five.For for purpose of brevity, because each charge control module 5 is all identical, therefore be only described the circuit structure of a charge control module 5 below, other four consistent with it.
Charge control module 5 comprises detection and current-limiting circuit 51, control circuit 52 and identifies and switching circuit 53.Wherein, detection and current-limiting circuit 51 are connected with corresponding power output interface 2, and control circuit 52 is connected with detection and current-limiting circuit 51; Identification and switching circuit 53 are connected with corresponding power output interface 2, control circuit 52 and charge control module 5.When USB plug inserts corresponding power output interface 2, USB plug judges whether meet current charge protocol according to the detection signal of identification and switching circuit 53, and USB plug optionally sends output signal by power output interface 2 according to charge protocol, detection and current-limiting circuit 51 collect the output signal of power output interface 2, and control circuit 52 controls current charge condition according to output signal.
Control circuit 52 comprises comparing unit 521, identification maneuver switch element 522 and current limliting and turns off unit 523.Comparing unit 521 is connected, for output signal and threshold value being compared and exporting compare result signal with detection and current-limiting circuit 51.Identification maneuver switch element 522 is connected with comparing unit 521, for according to compare result signal to identification and switching circuit 53 optionally send Continuity signal and optionally to detection and current-limiting circuit 51 sending action signal.Current limliting turn off unit 523 be connected with comparing unit 521, for according to compare result signal control detection and current-limiting circuit 51 turns off, power input interface is disconnected to the charge circuit of power output interface 2.As selection, control circuit 52 realizes its function by various ways.Preferably, shown in composition graphs 7 and Fig. 8, control circuit 52 can be a chip, its inside is integrated with above-mentioned comparing unit 521, identification maneuver switch element 522 and current limliting and turns off unit 523, this chip by different pins and detection and current-limiting circuit 51, to identify and switching circuit 53 is connected, thus realize relevant control function.
As shown in Figure 6, detection and current-limiting circuit 51 comprise the first switching tube Q1 and the 7th resistance R7, first drain electrode of the first switching tube Q1 is connected with the second drain electrode and accesses the negative power end V-of USB female seat 2, and be connected to control circuit 52 by the 7th resistance R7, thus the output signal of power output interface 2 is accessed to control circuit 52; First grid is connected with second grid and is connected to control circuit 52, the actuating signal exported with reception control circuit 52, makes the first switching tube Q1 cut-off and conducting once; Ground connection after first source electrode is connected with the second source electrode.
Identification and switching circuit 53 comprise the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 5th electric capacity C5 and second switch pipe Q6, power input interface is accessed after the negative power end V-of USB female seat 2 is connected with positive power source terminal V+ by the 5th electric capacity C5, thus make the charging signals of power input interface access USB plug by positive power source terminal V+, then exported by negative power end V-; By the 4th resistance R4 ground connection after correction data end D+ is connected with negative data end D-by the first resistance R1, thus USB plug is made to judge whether to meet charge protocol by the voltage detecting correction data end D+; The ungrounded end of the 4th resistance R4 is connected to power input interface by the 3rd resistance R3, the second resistance R2 be in series successively; The grounded emitter of second switch pipe Q6, collector electrode is connected between the second resistance R2 and the 3rd resistance R3, and base stage by the 5th resistance R5 connection control circuit 52, thus receives Continuity signal.
Below in conjunction with Fig. 5 to Fig. 8, the two-sided USB adapter of the multiplex roles in the utility model embodiment operation principle is described.
Multiplex roles in the utility model preferred embodiment two-sided USB adapter default setting, for meeting i Phone charge protocol, when power input interface inserts USB plug, has three kinds of situations:
1) USB plug is judged to meet current charge protocol according to detection signal, then USB plug sends output signal by described power output interface 2, thus, control circuit 52 detects that the output current (being equivalent to output signal) of the first switching tube Q1 is larger, now, namely output signal compares to threshold value and exports corresponding compare result signal by comparing unit 521; Control circuit 52 controls the first switching tube Q1 normally, makes current charge condition for charging normal situation.
2) USB plug is judged not meet current charge protocol according to detection signal, then USB plug does not send output signal by described power output interface 2, thus, control circuit 52 detects that the output current (being equivalent to output signal) of the first switching tube Q1 is less, what namely now access is the smart machine of other types, such as Android device.Now, namely output signal compares to threshold value and exports corresponding compare result signal by comparing unit 521; Identification maneuver switch element 522 sends Continuity signal to identification and switching circuit 53, simultaneously to detection and current-limiting circuit 51 sending action signal.Particularly, identification maneuver switch element 522 controls second switch pipe Q6 conducting, and meanwhile, quick control first switching tube Q1 ends also conducting and once, is equivalent to by USB plug plug once.Like this, make to be connected to the first resistance R1 between correction data end D+ and negative data end D-, and detection signal meets Android charge protocol, like this, make current charge condition enter the situation of charging normal.
3) control circuit 52 detects that the output current of the first switching tube Q1 is abnormal super-high-current, namely output signal compares to threshold value and exports corresponding compare result signal by comparing unit 521, then current limliting turn off unit 523 according to compare result signal control detect and current-limiting circuit 51 turns off, power input interface is disconnected to the charge circuit of power output interface 2.Particularly, control circuit 52 controls the first switching tube Q1 by the first grid of the first switching tube Q1 and second grid to be ended rapidly, then destroy the charge circuit of power input interface, make power output interface 2 no-output.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from several improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. the two-sided USB adapter of multiplex roles, it is characterized in that, comprise housing (1), described housing is provided with circuit board in (1), described housing (1) is provided with power input interface and power output interface (2), described power input interface and described power output interface (2) are electrical connected with described circuit board respectively, described circuit board is arranged and controls described power input interface to the charge control module (5) of described power output interface (2) charge condition; Described power output interface (2) is at least two, and at least two described power output interfaces (2) are set up in parallel at grade, described power output interface (2) comprises that be electrically connected with external USB plug, for inserting forward or backwards for described USB plug USB female seat (2); Described USB female seat (2) comprises the metal shell (21) of the both ends open be arranged on described housing (1) and is positioned at the insulated rubber core (22) in described metal shell (21) centre position; The first coupling assembling (23) be connected with described charge control module (5) is provided with between described insulated rubber core (22) and the upper surface of described metal shell (21), be provided with the second coupling assembling (24) be connected with described charge control module (5) between described insulated rubber core (22) and the lower surface of described metal shell (21), described first coupling assembling (23) and described second coupling assembling (24) are fixed on described insulated rubber core (22); Described insulated rubber core (22) coordinates with described metal shell (21) and inserts for described USB plug.
2. the two-sided USB adapter of multiplex roles according to claim 1, it is characterized in that, described multiplex roles two-sided USB adapter also comprises the power input plug be connected with described power input interface, and described power input plug is mains plug or Vehicular cigarette lighter plug.
3. the two-sided USB adapter of multiplex roles according to claim 1, it is characterized in that, power output interface (2) described with at least two is corresponding is respectively connected at least two described charge control module (5), and each described charge control module (5) comprising:
The detection be connected with corresponding described power output interface (2) and current-limiting circuit (51);
The control circuit (52) be connected with described detection and current-limiting circuit (51); And
The identification be connected with corresponding described power output interface (2), described control circuit (52) and described charge control module (5) and switching circuit (53);
Wherein, described USB plug judges whether meet current charge protocol according to the detection signal of described identification and switching circuit (53), and described USB plug optionally sends output signal by described power output interface (2) according to described charge protocol, described detection and current-limiting circuit (51) collect the output signal of described power output interface (2), and described control circuit (52) controls current charge condition according to described output signal.
4. the two-sided USB adapter of multiplex roles according to claim 3, is characterized in that, described control circuit (52) comprising:
Be connected with described detection and current-limiting circuit (51), for described output signal and threshold value being compared and exporting the comparing unit (521) of compare result signal;
Be connected with described comparing unit (521), for optionally sending Continuity signal and optionally to the identification maneuver switch element (522) of described detection and current-limiting circuit (51) sending action signal according to described compare result signal to described identification and switching circuit (53).
5. the two-sided USB adapter of multiplex roles according to claim 4, it is characterized in that, described control circuit (52) also comprises and being connected with described comparing unit (521), for controlling described detection according to described compare result signal and current-limiting circuit (51) turns off, the current limliting that makes described power input interface disconnect to the charge circuit of described power output interface (2) turns off unit (523).
6. the two-sided USB adapter of multiplex roles according to claim 5, is characterized in that, described power output interface (2) is USB female seat (2); Described detection and current-limiting circuit (51) comprise the first switching tube (Q1) and the 7th resistance (R7), first drain electrode of described first switching tube (Q1) is connected with the second drain electrode and accesses the negative power end (V-) of described USB female seat (2), and be connected to described control circuit (52) by described 7th resistance (R7), thus the described output signal of described power output interface (2) is accessed to described control circuit (52); The first grid of described first switching tube (Q1) is connected with second grid and is connected to described control circuit (52), to receive the actuating signal that described control circuit (52) exports, make the cut-off of described first switching tube (Q1) and conducting once; Ground connection after first source electrode of described first switching tube (Q1) is connected with the second source electrode.
7. the two-sided USB adapter of multiplex roles according to claim 6, it is characterized in that, described identification and switching circuit (53) comprise the first resistance (R1), second resistance (R2), 3rd resistance (R3), 4th resistance (R4), 5th resistance (R5), 5th electric capacity (C5) and second switch pipe (Q6), described power input interface is accessed after the negative power end (V-) of described USB female seat (2) is connected with positive power source terminal (V+) by described 5th electric capacity (C5), thus make the charging signals of described power input interface access described USB plug by described positive power source terminal (V+), exported by described negative power end (V-) again, by described 4th resistance (R4) ground connection after correction data end (D+) is connected with the negative data end (D-) of described USB female seat (2) by described first resistance (R1), thus described USB plug is made to judge whether to meet charge protocol by the voltage detecting described correction data end (D+), the ungrounded end of described 4th resistance (R4) is connected to described power input interface by described 3rd resistance (R3) that is in series successively, described second resistance (R2), the grounded emitter of described second switch pipe (Q6), collector electrode is connected between described second resistance (R2) and described 3rd resistance (R3), base stage connects described control circuit (52) by described 5th resistance (R5), thus receives described Continuity signal.
8. the two-sided USB adapter of the multiplex roles according to any one of claim 1 to 7, is characterized in that, described power output interface (2) and described charge control module (5) are five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623685.0U CN204131189U (en) | 2014-10-24 | 2014-10-24 | The two-sided USB adapter of multiplex roles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623685.0U CN204131189U (en) | 2014-10-24 | 2014-10-24 | The two-sided USB adapter of multiplex roles |
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| Publication Number | Publication Date |
|---|---|
| CN204131189U true CN204131189U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420623685.0U Expired - Fee Related CN204131189U (en) | 2014-10-24 | 2014-10-24 | The two-sided USB adapter of multiplex roles |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515124A (en) * | 2016-02-02 | 2016-04-20 | 湖南象外科技有限公司 | USB charger allowing USB plug to be plugged forward and reversely |
| CN106100084A (en) * | 2016-07-28 | 2016-11-09 | 广东欧珀移动通信有限公司 | Charging system, terminal, power supply adaptor and charging wire |
| WO2018010390A1 (en) * | 2016-07-12 | 2018-01-18 | 广州视睿电子科技有限公司 | Charging dock for touch screen input device |
| CN108199192A (en) * | 2017-12-29 | 2018-06-22 | 深圳市远峰运动科技有限公司 | A kind of USB interface for supporting positive anti-plug |
| CN110429688A (en) * | 2019-08-26 | 2019-11-08 | 吉安伊戈尔电气有限公司 | A kind of USB twoport charger of the mutual lock control of band |
| CN110635290A (en) * | 2019-01-31 | 2019-12-31 | 中航光电科技股份有限公司 | Socket and plug for DC charging and discharging |
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2014
- 2014-10-24 CN CN201420623685.0U patent/CN204131189U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515124A (en) * | 2016-02-02 | 2016-04-20 | 湖南象外科技有限公司 | USB charger allowing USB plug to be plugged forward and reversely |
| WO2018010390A1 (en) * | 2016-07-12 | 2018-01-18 | 广州视睿电子科技有限公司 | Charging dock for touch screen input device |
| CN106100084A (en) * | 2016-07-28 | 2016-11-09 | 广东欧珀移动通信有限公司 | Charging system, terminal, power supply adaptor and charging wire |
| CN108565915A (en) * | 2016-07-28 | 2018-09-21 | Oppo广东移动通信有限公司 | Charging system, terminal, power supply adaptor and charging wire |
| US10720779B2 (en) | 2016-07-28 | 2020-07-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Quick charging system, terminal, power adapter and charging line |
| US10910845B2 (en) | 2016-07-28 | 2021-02-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, power adapter for charging terminal, and charging line for coupling terminal and power adapter |
| CN108199192A (en) * | 2017-12-29 | 2018-06-22 | 深圳市远峰运动科技有限公司 | A kind of USB interface for supporting positive anti-plug |
| CN108199192B (en) * | 2017-12-29 | 2020-05-22 | 广东高驰运动科技有限公司 | USB interface supporting forward and reverse insertion |
| CN110635290A (en) * | 2019-01-31 | 2019-12-31 | 中航光电科技股份有限公司 | Socket and plug for DC charging and discharging |
| CN110429688A (en) * | 2019-08-26 | 2019-11-08 | 吉安伊戈尔电气有限公司 | A kind of USB twoport charger of the mutual lock control of band |
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| 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: 20150128 Termination date: 20201024 |