CN207426748U - USB charging sockets - Google Patents
USB charging sockets Download PDFInfo
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- CN207426748U CN207426748U CN201721405591.6U CN201721405591U CN207426748U CN 207426748 U CN207426748 U CN 207426748U CN 201721405591 U CN201721405591 U CN 201721405591U CN 207426748 U CN207426748 U CN 207426748U
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Abstract
A kind of USB charging sockets, including：Socket casing, first interface component, second interface component, power circuit, the first charging circuit and the second charging circuit；Socket casing offers the first jack and the second jack；First charging circuit includes the first power management module, voltage detection module, feedback module and charge protocol control module, the second output terminal connection first interface component of charge protocol control module；Second charging circuit includes second source management module and charging identification module, the output terminal connection second interface component of charging identification module.Above-mentioned USB charging sockets, on the one hand when needing quick charge, the first interface being connected to by data cable in the first jack component can be selected so as to be connected with the first charging circuit, on the other hand when only needing commonly to charge, the second interface being connected to by data cable in the second jack component can be selected so as to be connected with the second charging circuit.
Description
Technical field
The utility model is related to electronic circuit technology field, more particularly to a kind of USB charging sockets.
Background technology
With the development of science and technology and social economy, scientific and technological progress active influence the economy of society and changes people
Life style.At present, the electronic equipments such as mobile phone, tablet computer are popularized on a large scale, since the battery of this class of electronic devices makes
Low with efficiency, the charging time is long, and charge condition requirement is high, and existing mobile phone charge power supply is all standard configuration, moveable, it is impossible to
It reaches general or is easily lost；During charging the charger with USB plug is generally used to be inserted on charging socket to charge, specific
, it is necessary to be equipped with corresponding charger to electronic equipments such as mobile phones in, vast resources is consumed, is unfavorable for environmental protection.
Meanwhile existing mobile phone charge power supply is all single port low current, can not meet the mobile phone of one or more and charge；
It also needs to be inserted on the plate of other 220V in charging process, could charge, such connection mode has and makes terminal client
Directly contact the possibility of 220V；And existing mobile phone standard configuration power supply can not ensure to give user one peace without safety certification requirement
Complete reliable mobile phone charging environment, since the charger of commercial type is very different, sets electronics using cheap charger
The unavoidable damage caused to electronic equipment in standby charging process reduces the service life of electronic equipment, to user with
Carry out unnecessary loss.
Universal serial bus (Universal Serial Bus, abbreviation USB) interface is most common connecting interface now
One of, since USB interface can not only transmit data, moreover it is possible to transmit electric power, therefore, many portable electric appts all use USB
Interface accesses line voltage to charge to electronic equipment as charge port by corresponding USB.Existing USB socket leads to
Often only there is the USB interface of 1 type, and people are in different situations, and different requirements is had to charging.For example, when
Between it is urgent in the case of, it is desirable to be able to quick electron equipment is charged, in the case where the time is not urgent, and want to
Common speed electron equipment is charged, to protect battery, existing USB charging sockets can not meet people's quick charge and
The different charging requirements that usual speed charges.
Utility model content
Based on this, it is necessary to for existing USB charging sockets only there is the USB interface of 1 type, people can not be met
Quick charge and usual speed difference the technical issues of requiring for charging, a kind of USB charging sockets are provided.
A kind of USB charging sockets, including：Socket casing, first interface component, second interface component, power circuit, first
Charging circuit and the second charging circuit；The Socket casing offers the first jack and the second jack, the first interface component
It is connected in first jack and with the Socket casing；The second interface component be located in second jack and with
The Socket casing connection；The power circuit is arranged in the Socket casing, and the input terminal of the power circuit is used to connect
Connect mains electricity input end；First charging circuit is arranged in the Socket casing, and first charging circuit includes the first electricity
Source control module, voltage detection module, feedback module and charge protocol control module, wherein, first power management module
First input end be connected with the output terminal of the power circuit, the output terminal of first power management module respectively with it is described
The first input end of voltage detection module is connected with the input terminal of the charge protocol control module, and the charge protocol controls mould
First output terminal of block is connected with the second input terminal of the voltage detection module, the output terminal of the voltage detection module and institute
State the input terminal connection of feedback module, the second input terminal of the output terminal of the feedback module and first power management module
Connection, the second output terminal of the charge protocol control module connect the first interface component；Second charging circuit is set
It being placed in the Socket casing, second charging circuit includes second source management module and charging identification module, wherein, institute
The input terminal for stating second source management module is connected with the output terminal of the power circuit, the second source management module it is defeated
Outlet connects the input terminal of the charging identification module, and the output terminal of the charging identification module connects the second interface group
Part.
In one of the embodiments, the charge protocol control module includes charge protocol control chip U1, resistance R39
With capacitance C39, wherein：The power input pin of the charge protocol control chip U1 is as the charge protocol control module
Input terminal is connected by resistance R39 with the output terminal of first power management module, the charge protocol control chip U1's
Power input pin also by capacitance C39 for being grounded, make by the feedback voltage output pin of the charge protocol control chip U1
It is connected for the first output terminal of the charge protocol control module with the second input terminal of the voltage detection module, the charging
The anode output pin of protocol integrated test system chip U1 connects the first data contact pin of the first interface component, the charge protocol control
The cathode output pin of coremaking piece U1 connects the second data contact pin of the first interface component.
In one of the embodiments, the voltage detection module includes thyristor U17, infrared light-emitting diode U5-
A, resistance R28, resistance R31, resistance R33, resistance R36, resistance R37, capacitance C37 and capacitance C48, wherein：The thyristor U17
Gate leve exported as the feedback voltage of the second input terminal and the charge protocol control chip U1 of the voltage detection module
Pin connects, and the anode of the thyristor U17 is for being grounded, the cathode of the thyristor U17 and two pole of infrared light emission
The cathode connection of pipe U5-A, the anode of the infrared light-emitting diode U5-A are used as the voltage inspection by the resistance R37
The first input end for surveying module is connected with the output terminal of first power management module, the resistance R31 and the infrared ray
Light emitting diode U5-A is in parallel, and the anode of the infrared light-emitting diode U5-A also passes through the resistance R28, the capacitance
C37 and the resistance R36 are connected with the output terminal of first power management module, the series connection of the resistance R28 and the C37
Circuit is in parallel with the capacitance C48, the series circuit of the thyristor U17, the resistance R28 and the capacitance C37 with it is described
Resistance R33 is in parallel；The feedback module includes phototriode U5-B and capacitance C12, wherein：The capacitance C12 and the light
Quick triode U5-B is in parallel, and the base stage of the phototriode U5-B is described for receiving as the input terminal of the feedback module
The optical signal of infrared light-emitting diode U5-A transmittings, the emitter of the phototriode U5-B are described photosensitive for being grounded
The collector of triode U5-B is as the output terminal of the feedback module and the second input terminal of first power management module
Connection.
In one of the embodiments, first power management module includes：First transformer T1, the first power management
Chip U2, the first control submodule, synchronous rectification submodule, wherein, the first transformer T1 includes the first primary coil, the
Two primary coils and secondary coil；The first primary coil of the first transformer T1 is as first power management module
First input end is connected with the output terminal of the power circuit, and the PWM output pins of the first power management chip U2 pass through
First control submodule is connected with the both ends of the first primary coil of the first transformer T1, first power management
The power input pin of chip U2 is connected with the second primary coil of the first transformer T1, first power management chip
The feedback voltage pin of U2 connects as the second input terminal of first power management module and the output terminal of the feedback module
It connects, the input terminal of the both ends of the secondary coil of the first transformer T1 respectively with the synchronous rectification submodule is connected, described
The output terminal of synchronous rectification submodule as first power management module output terminal respectively with the voltage detection module
First input end connected with the input terminal of the charge protocol control module.
In one of the embodiments, first power management module further includes the first overcurrent protection submodule, described
The first end of first overcurrent protection submodule is connected with the current detecting pin of the first power management chip U2, and described first
The second end of overcurrent protection submodule is connected with the PWM output pins of the first power management chip U2.
In one of the embodiments, first power management module further includes overheat protector submodule, the excess temperature
The first end of protection submodule is connected with the temperature detection pin of the first power management chip U2, the overheat protector submodule
The second end of block is connected with the second primary coil of the voltage device T1.
In one of the embodiments, the charging identification module includes charging identification chip U5, resistance R10 and capacitance
The input pin of C14, the charging identification chip U5 as the charging identification module input terminal by resistance R10 with it is described
The output terminal connection of second source management module, the input pin of the charging identification chip U5 also are used to connect by capacitance C14
Ground, the anode output pin of the charging identification chip U5 connects the first data contact pin of the second interface component, described to fill
The cathode output pin of electric identification chip U5 connects the second data contact pin of the second interface component.
In one of the embodiments, the second source management module includes the changes of second source managing chip U4 and second
Depressor T2, wherein, the second transformer T2 has the first primary coil, the second primary coil and secondary coil；Described second
The first primary coil of transformer T2 is as the input terminal of the second source management module and the output terminal of the power circuit
The two of the first primary coil of connection, the PWM output pins of the second source managing chip U4 and the second transformer T2
End connection, the power supply output pin of the second source managing chip U4 and the second primary coil of the second transformer T2 connect
It connects, the secondary coil of the second transformer T2 identifies mould as the output terminal of the second source management module with described charge
The input terminal connection of block.
In one of the embodiments, the second source management module further includes Schottky rectification submodule, and described
The secondary coil of two transformer T2 is connected by the Schottky rectification submodule with the input terminal of the charging identification module.
In one of the embodiments, the second source management module further includes the second overcurrent protection submodule, described
The first end of second overcurrent protection submodule is connected with the current detecting pin of the second source managing chip U4, and described second
The second end of overcurrent protection submodule is used to be grounded.
Above-mentioned USB charging sockets by opening up the first jack and the second jack respectively, and set first in the first jack
Interface module sets second interface component in the second jack, and in Socket casing the first charging circuit is set to be connect with first
Mouth component connection, the second charging circuit are connected with second interface component, when electronic equipment needs to charge, are on the one hand being needed soon
When speed charges, it can select to be connected to the first interface component in the first jack by data cable so as to the first charging circuit connect
It connects, and the first charging circuit controls mould by its first power management module, voltage detection module, feedback module and charge protocol
Block can be compatible with seven kinds of common communication protocols on the market, and different according to the agreement of every money electronic equipment, can export respectively
Different charging voltages and electric current, and the power of electronic equipment needs is obtained, to export suitable power at any time, realize
Efficiency maximizes, and then electric energy loss minimized, charge efficiency is promoted and improves hotlist and show, and realizes quick charge；The opposing party
Face can select to be connected to second interface component in the second jack by data cable so as to the when only needing commonly to charge
Two charging circuits connect, and the first charging circuit identifies that charging is set by its second source management module and charging identification module
It is standby, and specific charging voltage and charging current are exported, common charging is realized, to protect battery life.
Description of the drawings
Fig. 1 is the structure diagram of the USB charging sockets of an embodiment；
Fig. 2 is the module diagram of the first charging circuit 15 of an embodiment；
Fig. 3 is the module diagram of the second charging circuit 16 of an embodiment；
Fig. 4 is the circuit diagram of the first charging circuit of an embodiment；
Fig. 5 is the circuit diagram of the second charging circuit of an embodiment；
Fig. 6 is the circuit diagram of the power circuit of an embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In the description of the utility model, it is to be understood that term " first ", " second " are only used for description purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.It defines as a result,
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".In the description of the utility model,
" multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.
USB charging sockets according to the utility model embodiment are described below in conjunction with the accompanying drawings.For example, the utility model one is real
Applying the USB charging sockets of example includes Socket casing, first interface component, second interface component, power circuit, the first charging circuit
With the second charging circuit.The Socket casing offers the first jack and the second jack, and the first interface component is located at described
Be connected in first jack and with the Socket casing, the second interface component be located at second jack it is interior and with the socket
Housing connects；The power circuit is arranged in the Socket casing, and the input terminal of the power circuit is defeated for connecting alternating current
Enter end；First charging circuit is arranged in the Socket casing, and first charging circuit includes the first power management mould
Block, voltage detection module, feedback module and charge protocol control module, wherein, the first of first power management module is defeated
Enter end to be connected with the output terminal of the power circuit, the output terminal of first power management module respectively with the voltage detecting
The first input end of module is connected with the input terminal of the charge protocol control module, and the first of the charge protocol control module
Output terminal is connected with the second input terminal of the voltage detection module, the output terminal of the voltage detection module and the feedback mould
The input terminal connection of block, the output terminal of the feedback module are connected with the second input terminal of first power management module, institute
The second output terminal for stating charge protocol control module connects the first interface component；Second charging circuit is arranged at described
In Socket casing, second charging circuit includes second source management module and charging identification module, wherein, second electricity
The input terminal of source control module is connected with the output terminal of the power circuit, the output terminal connection of the second source management module
The input terminal of the charging identification module, the output terminal of the charging identification module connect the second interface component.
Above-mentioned USB charging sockets by opening up the first jack and the second jack respectively, and set first in the first jack
Interface module sets second interface component in the second jack, and in Socket casing the first charging circuit is set to be connect with first
Mouth component connection, the second charging circuit are connected with second interface component, when electronic equipment needs to charge, are on the one hand being needed soon
When speed charges, it can select to be connected to the first interface component in the first jack by data cable so as to the first charging circuit connect
It connects, and the first charging circuit controls mould by its first power management module, voltage detection module, feedback module and charge protocol
Block can be compatible with seven kinds of common communication protocols on the market, and different according to the agreement of every money electronic equipment, can export respectively
Different charging voltages and electric current, and the power of electronic equipment needs is obtained, to export suitable power at any time, realize
Efficiency maximizes, and then electric energy loss minimized, charge efficiency is promoted and improves hotlist and show, and realizes quick charge；The opposing party
Face can select to be connected to second interface component in the second jack by data cable so as to the when only needing commonly to charge
Two charging circuits connect, and the first charging circuit identifies that charging is set by its second source management module and charging identification module
It is standby, and specific charging voltage and charging current are exported, common charging is realized, to protect battery life.For example, general electronics is set
It need to only charge about 35 minutes during standby quick charge, electricity can increase to 80% from 0%；And when using common charge, then it may need
Time when cost about 1.5 is small.
Above-mentioned USB charging sockets meet EMI/EMS and safety standard authentication requesting, and strong antijamming capability can carry for user
For safe and reliable USB electric appliance charging environment.
It should be noted that the utility model is claimed be on address the USB charging sockets of following embodiment
Product structure and its connection relation, specific signal transmission and control are realized by electronic component, and the utility model will
The scope of protection is asked not to be related to the specific transmission and control of signal, specific power circuit, the first charging circuit and the second charging
Circuit all gives specific structure and connection relation explanation below.
For example, Fig. 1 is the structure diagram of the USB charging sockets of an embodiment.As shown in Figure 1, the USB charging sockets
10, including：Socket casing 11, first interface component 12, second interface component 13, power circuit 14,15 and of the first charging circuit
Second charging circuit 16.
Socket casing 11 offers the first jack 111 and the second jack 112, and first interface component 12 is located at the first jack
It is connected in 111 and with Socket casing 11, second interface component 13 is located in the second jack 112 and is connected with Socket casing 11.
In the present embodiment, the first jack and the second jack may be inserted into data cable connector, the first jack and the second jack for passing through number
According to line first interface component or second interface component is made to be connected with charging equipment, with electron equipment charge.
Power circuit 14, the first charging circuit 15 and the second charging circuit 16 may be contained in Socket casing 11.Power supply electricity
The input terminal on road 14 is used to connect mains electricity input end.In the present embodiment, power circuit is used to be converted to mains AC surely
Fixed direct current, the first charging circuit provide fast charge mode for electron equipment, and the second charging circuit is used for electron
Equipment provides usual speed charge mode.
For example, Fig. 2 is the module diagram of the first charging circuit 15 of an embodiment.As shown in Fig. 2, the first charging circuit
15 include the first power management module 151, voltage detection module 152, feedback module 153 and charge protocol control module 154,
In, the first input end of the first power management module 151 is connected with the output terminal of power circuit 14, the first power management module
151 output terminal connects respectively with the first input end of voltage detection module 152 and the input terminal of charge protocol control module 154
It connects, the first output terminal of charge protocol control module 154 is connected with the second input terminal of voltage detection module 152, voltage detecting
The output terminal of module 152 is connected with the input terminal of feedback module 153, the output terminal of feedback module 153 and the first power management mould
The second input terminal connection of block 151, the second output terminal connection first interface component 12 of charge protocol control module 152.At this
In embodiment, charge protocol control module 152 is used for default filling needed for the electronic equipment connected according to first interface component
Electrical voltage value determines charge mode, and exports corresponding charging voltage to first interface component according to the charge mode and fill
The charging voltage of output and charging current so as to charge to electronic equipment, and are fed back to voltage detection module by electric current,
Voltage detection module is used to receive the charging voltage and charging current signal of charge protocol control module feedback, and result is passed through
Feedback module is exported to the first power management module, and the first power management module charges electric for the output of receiving voltage detection module
Pressure and charging current signal to obtain the power of electronic equipment needs, to export suitable power at any time, realize efficiency
It maximizes, and then electric energy loss is minimized, charge efficiency is promoted and improves hotlist and show, to realize quick charge and ensure to charge
Stability.
In the utility model embodiment, the default charge mode of charge protocol control module includes at least following three kinds：
First charge mode, corresponding output current is 3A, voltage 5V, the second charge mode, and corresponding output current is 2A, voltage
For 9V, the 3rd charge mode, corresponding output current is 1.5A, voltage 12V.Charge protocol control module can recognize that on the market
Nine kinds of common communication protocols：Including HVDCP QC3.0/QC2.0ClaassA and Class B, FCP (Fast Charge
Protocol)、AFC(Adaptive Fast Charge)、SFCP(Spreadtrum Fast Charge Protocol)、MTK
PE+2.0/1.1 (MediaTek Pump Express Plus 2.0/1.1), Apple 2.4A, BC1.2 and Samsung 2.0A.
The switching of automatic checkout equipment type and charge protocol automated tos respond to the request of fast charge agreement, accurately control output current and
Voltage.The corresponding charging voltage of tri- kinds of charge modes of 5VDC/3A, 9VDC/2A, 12VDC/1.5A and electric current can be exported respectively.
For example, Fig. 3 is the module diagram of the second charging circuit 16 of an embodiment.As shown in figure 3, the second charging circuit
16 include second source management module 161 and charging identification module 162, wherein, the input terminal of second source management module 161 with
The output terminal connection of power circuit 14, the input of the output terminal connection charging identification module 162 of second source management module 161
End, the output terminal connection second interface component 13 of charging identification module 162.In the present embodiment, charging identification module is used for root
Specific charging voltage is exported according to the electronic equipment of second interface component connection and charging current, second source management module are used for
Voltage is provided and electric current gives charging identification module.
For example, Fig. 4 is the circuit diagram of the first charging circuit of an embodiment.In one of the embodiments, such as Fig. 4 institutes
Show, charge protocol control module 154 includes charge protocol control chip U1, resistance R39 and capacitance C39, charge protocol control core
The power input pin VCC of piece U1 passes through resistance R39 and the first power management as the input terminal of charge protocol control module 154
The output terminal connection of module 151, the power input pin VCC of charge protocol control chip U1 also are used to be grounded by capacitance C39,
First output terminals and electricity of the feedback voltage output pin FB of charge protocol control chip U1 as charge protocol control module 154
Press the second input terminal connection of detection module 152, the anode output pin DP connection first interfaces of charge protocol control chip U1
First data contact pin D+ of component 12, the cathode output pin DM connection first interfaces component 12 of charge protocol control chip U1
Second data contact pin D-.For example, charge protocol control chip U1 selects IP2163 chips.For example, charge protocol control chip U1
Select core Zhuo Wei IP2163 chips.For example, the first data contact pin and the second data contact pin are to be connected to realize data with data cable
The sheet metal of transmission.
In one of the embodiments, as shown in figure 4, voltage detection module 152 includes thyristor U17, infrared light emission
Diode U5-A, resistance R28, resistance R31, resistance R33, resistance R36, resistance R37, capacitance C37 and capacitance C40, wherein：Brilliant lock
The gate leve of pipe U17 is exported as the feedback voltage of the second input terminal and charge protocol control chip U1 of voltage detection module 152
Pin FB connections, the gate leve of thyristor U17 are the control pole of thyristor U17, and the anode of thyristor U17 is for being grounded, brilliant lock
The cathode of pipe U17 is connected with the cathode of infrared light-emitting diode U5-A, and the anode of infrared light-emitting diode U5-A passes through electricity
Resistance R37 is connected as the first input end of voltage detection module 152 with the output terminal of the first power management module 151, resistance R31
It is in parallel with infrared light-emitting diode U5-A, the anode of infrared light-emitting diode U5-A also by resistance R28, capacitance C37 and
Resistance R36 is connected with the output terminal of the first power management module 151, and the series circuit of resistance R28 and C37 are in parallel with capacitance C40,
The series circuit of thyristor U17, resistance R28 and capacitance C37 are in parallel with resistance R33.
In one of the embodiments, as shown in figure 4, feedback module 153 includes phototriode U5-B and capacitance C12,
Wherein：Capacitance C12 is in parallel with phototriode U5-B, the input terminal of the base stage of phototriode U5-B as feedback module 153
For the optical signal of receiving infrared-ray light emitting diode U5-A transmittings, the emitter of phototriode U5-B is photosensitive for being grounded
The collector of triode U5-B connects as the output terminal of feedback module 153 and the second input terminal of the first power management module 151
It connects.It should be noted that the base stage of phototriode U5-B and infrared light-emitting diode U5-A by optical signal be connected with into
Row signal transmission, specifically, infrared light-emitting diode send optical signal, and phototriode U5-B receives its light letter sent
Number.
In one of the embodiments, the first power management module 151 includes：First transformer T1, the first power management
Chip U2, the first control submodule 1511, synchronous rectification submodule 1512, wherein, the first transformer T1 includes the first primary line
Circle, the second primary coil and secondary coil；The first primary coil of first transformer T1 is as the first power management module 151
First input end is connected with the output terminal of power circuit 14, and the PWM output pins of the first power management chip U2 pass through the first control
System module 1511 is connected with the both ends of the first primary coil of the first transformer T1, and the power supply of the first power management chip U2 is defeated
The second primary coil for entering pin with the first transformer T1 is connected, and the feedback voltage pin of the first power management chip U2 is as
Second input terminal of one power management module 151 is connected with the output terminal of feedback module 153, the secondary coil of the first transformer T1
Input terminal of the both ends respectively with synchronous rectification submodule 1512 be connected, the output terminal of synchronous rectification submodule 1512 is as first
The output terminal of power management module 151 respectively with the first input end of voltage detection module 152 and charge protocol control module 154
Input terminal connection.For example, the first power management chip U2 selects OB2633 chips.For example, the first power management chip U2 is selected
OB2633 chips are tieed up with east.
For example, as shown in figure 4, the first control submodule 1511 includes：Triode Q1, resistance R26, resistance R27, resistance
The base stage of R41 and diode D11, triode Q1 are connected with the anode of diode D11, and the cathode of diode D11 passes through resistance R41
It is connected with the PWM output pins GATE of the first power management chip U2, resistance R26 is in parallel with diode D11, the base of triode Q1
Pole is also by resistance R27 for being grounded, and for being grounded, the collector of triode Q1 becomes the emitter of triode Q1 with first respectively
The both ends connection of the first primary coil of depressor T1.
For example, as shown in figure 4, synchronous rectification submodule 1512 includes synchronous rectification chip U3 and its peripheral circuit.For example,
Synchronous rectification chip U3 selects OB2004A chips.For example, synchronous rectification chip U3 selects east dimension OB2004A chips.
In one of the embodiments, the first power management module 151 further includes the first overcurrent protection submodule 1513, the
The first end of one overcurrent protection submodule 1513 is connected with the current detecting pin of the first power management chip U2, and the first overcurrent is protected
The second end of shield submodule 1513 is connected with the PWM output pins of the first power management chip U2.
For example, as shown in figure 4, the first current foldback circuit 1513 include resistance R18 and resistance R19, wherein：Resistance R19
First end as the first end of the first overcurrent protection submodule 1513 and the current detecting pin of the first power management chip U2
SENSE connections, the second end of resistance R19 is for being grounded, and the first end of resistance R18 is as the first overcurrent protection submodule 1513
Second end is connected with the PWM output pins GATE of the first power management chip U2, and the second end of resistance R18 is used to be grounded.
Specifically, when the first power management module output overcurrent/overload, the electric current on resistance R18 and resistance 19 is flowed through
It can become larger, the voltage that the current detecting pin SENSE of the first power management chip U2 is detected can rise, when current detecting pin
When voltage on SENSE is more than setting upper limit value, the first power management chip U2 is stopped to close output.
In one of the embodiments, the first power management module 151 further includes overheat protector submodule 1514, and excess temperature is protected
The first end of shield submodule 1514 is connected with the temperature detection pin of the first power management chip U2, overheat protector submodule 1514
Second end be connected with the second primary coil.
For example, as shown in figure 4, overheat protector submodule 1514 includes resistance R23, resistance R24, resistance R44 and diode
D11, wherein：The first end of resistance R44 is for being grounded, and the second end of resistance R44 is connected with the cathode of diode D11, diode
The anode of D11 is used as the first end of overheat protector submodule 1514 and the temperature of the first power management chip U2 by resistance R24
Detect pin PRT connections, the anode of diode D11 also by resistance R23 be used as overheat protector submodule 1514 second end and
The second primary coil connection of voltage device T1.
In one of the embodiments, the first power management module 151 further includes the first RCD absorption submodules 1515, the
The first end that one RCD absorbs submodule 1515 is connected with the first end of the first primary coil of the first transformer T1, and the first RCD inhales
The second end for receiving submodule 1515 is connected with the second end of the first primary coil of the first transformer T1.
For example, as shown in figure 4, the first RCD, which absorbs submodule 1515, includes resistance R16, resistance R17, resistance R42, capacitance
C33 and diode D8, wherein：The anode of diode D8 absorbs the first end and the first transformation of submodule 1515 as the first RCD
The first end connection of the first primary coil of device T1, the cathode of diode D8 by the parallel circuit of resistance R17 and resistance R42,
The parallel circuit of capacitance C33 and resistance R16 absorb the of second end and the first transformer T1 of submodule 1515 as the first RCD
The second end connection of one primary coil.
For example, Fig. 5 is the circuit diagram of the second charging circuit of an embodiment.In one of the embodiments, such as Fig. 5 institutes
Show, charging identification module 162 includes charging identification chip U5, resistance R10 and capacitance C14, and the input of charging identification chip U5 is drawn
Foot IN is used as the input terminal of charging identification module 162 by resistance R10 and is connected with the output terminal VCC of second source management module 161
It connects, the input pin IN of charging identification chip U5 also by capacitance C14 for being grounded, draw by the anode output of charging identification chip U5
First data contact pin of foot DP1 connection second interfaces component 14, the cathode output pin DM1 connections second of charging identification chip U5
Second data contact pin of interface module 14.For example, charging identification chip U5 selects UC2633/UC2634 chips, know for example, charging
Other chip U5 selects core Zhuo Wei UC2633/UC2634 chips.For example, the first data contact pin and the second data contact pin are and data
The sheet metal of data transmission is realized in line connection.
In one of the embodiments, as shown in figure 5, second source management module 161 includes second source managing chip
U4 and the second transformer T2, wherein, the second transformer T2 has the first primary coil, the second primary coil and secondary coil；
The first primary coil of second transformer T2 is as the input terminal of second source management module 161 and power circuit 14
Output terminal connection, the first primary coil of the PWM output pins Drain of second source managing chip U4 and the second transformer T2
Both ends connection, the second primary coil company of the power supply output pin VDD of second source managing chip U4 and the second transformer T2
It connects, the secondary coil of the second transformer T2 is defeated as output terminal and the charging identification module 162 of second source management module 161
Enter VCC is held to connect.For example, second source managing chip U4 selects OB2530 chips, for example, second source managing chip U4 is selected
East dimension OB2530 chips.
In one of the embodiments, second source management module U4 further includes Schottky rectification submodule 1611, and second
The secondary coil of transformer T2 is connected by Schottky rectification submodule 1611 with the input terminal of charging identification module.
For example, as shown in figure 5, Schottky rectification submodule 1611 includes diode D21, diode D22, resistance R13, electricity
Hold C5 and capacitance C6, wherein：Diode D21 and diode D22 are in parallel in the same direction, the anode of diode D21 and the sun of diode D22
It is connected after the connection of pole with the first end of the secondary coil of the second transformer T2, the cathode of diode D21 and the cathode of diode D22
Be connected after connection by capacitance C6 with the second end of the secondary coil of the second transformer T2, capacitance C5 and resistance R13 series connection after with
Diode D21 is in parallel.
In one of the embodiments, second source management module 161 further includes the second overcurrent protection submodule 1612, the
The first end of two overcurrent protection submodules 1612 is connected with the current detecting pin of second source managing chip U4, and the second overcurrent is protected
The second end of shield submodule is used to be grounded.
For example, as shown in figure 5, the second overcurrent protection submodule 1612 includes resistance R12 and resistance R15, resistance R12 and electricity
The first end of R15 parallel connections is hindered as the first end of the second overcurrent protection submodule 1612 and the electric current of second source managing chip U4
Detect pin CS connections, the second end of second end in parallel with resistance R15 resistance R12 as the second overcurrent protection submodule 1612
For being grounded.
In one of the embodiments, second source management module 161 further includes overvoltage protection submodule 1613, and overvoltage is protected
The first end of shield submodule 1613 is connected with the voltage sense pin of second source managing chip U4, overvoltage protection submodule 1613
Second end be connected with the second primary coil of the second transformer T2, the 3rd end of overvoltage protection submodule 1613 is for being grounded.
For example, as shown in figure 5, overvoltage protection submodule 1613 includes resistance R7, resistance R8 and resistance R9, the of resistance R9
One end is as the 3rd end of overvoltage protection submodule 1613 for being grounded, and the second end of resistance R9 is as overvoltage protection submodule
1613 first end is connected with the voltage sense pin INV of second source managing chip U4, the second end of resistance R9 also with resistance
R7 is connected with the first end of resistance R8 parallel circuits, and the second end of resistance R7 and resistance R8 parallel circuits is as overvoltage protection submodule
The second end of block 1613 is connected with the second primary coil of the second transformer T2.
In one of the embodiments, second source management module 161 further includes the 2nd RCD absorption submodules 1614, the
The first end that two RCD absorb submodule 1614 is connected with the first end of second the first primary coils of transformer T2, and the 2nd RCD absorbs
The second end of submodule 1614 is connected with the second end of the first primary coil of the second transformer T2.
For example, as shown in figure 5, the 2nd RCD, which absorbs submodule 1614, includes resistance R4, resistance R5, capacitance C4A and diode
D1, wherein：At the beginning of the anode of diode D1 absorbs the first end of submodule 1614 and the first of the first transformer T1 as the 2nd RCD
The first end connection of grade coil, the cathode of diode D1 are used as the first RCD by resistance R5 and resistance R4 and absorb submodule 1614
Second end be connected with the second end of the first primary coil of the first transformer T1, capacitance C4A is in parallel with resistance R4.
For example, Fig. 6 is the circuit diagram of the power circuit of an embodiment.In one embodiment, as shown in fig. 6, power supply is electric
Road 14 includes EMI modules 141, rectification module 142, filter module 143, and the input terminal of EMI modules 141 is as power circuit 14
Input terminal is for connecting mains electricity input end, and the output terminal of EMI modules 141 is connected with the input terminal of rectification module 142, rectification module
142 output terminal is connected with the input terminal of filter module 143, the output of the output terminal of filter module 143 as power circuit 14
The input terminal respectively with the first input end of the first power management module 151 and second source management module 161 is held to be connected.It needs
Illustrate, EMI modules, rectification module, filter module all can respectively be realized by conventional means of the prior art its rectification,
Functions, the those skilled in the art such as filtering can be from the prior arts or attached drawing 6 it is known that details are not described herein.
In one embodiment, Socket casing is the insulation crust with cavity, power circuit, the first charging circuit and the
Two charging circuits and other circuits are placed in the cavity of insulation crust.In one embodiment, above-mentioned Socket casing is cut
Face shape is rectangle, is, for example, the square of 86mm*86mm.It is mounted to a wall that above-mentioned Socket casing can make panel jack, example
Such as, on embedded wall.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of USB charging sockets, which is characterized in that including：
Socket casing, the Socket casing offer the first jack and the second jack,
First interface component, the first interface component are located in first jack and are connected with the Socket casing；
Second interface component, the second interface component are located in second jack and are connected with the Socket casing；
Power circuit, the power circuit are arranged in the Socket casing, and the input terminal of the power circuit is used to connect city
Electrical input；
First charging circuit, first charging circuit are arranged in the Socket casing, and first charging circuit includes the
One power management module, voltage detection module, feedback module and charge protocol control module, wherein, first power management
The first input end of module is connected with the output terminal of the power circuit, the output terminal of first power management module respectively with
The first input end of the voltage detection module is connected with the input terminal of the charge protocol control module, the charge protocol control
First output terminal of molding block is connected with the second input terminal of the voltage detection module, the output terminal of the voltage detection module
It is connected with the input terminal of the feedback module, the second of the output terminal of the feedback module and first power management module is defeated
Enter end connection, the second output terminal of the charge protocol control module connects the first interface component；
Second charging circuit, second charging circuit are arranged in the Socket casing, and second charging circuit includes the
Two power management modules and charging identification module, wherein, input terminal and the power circuit of the second source management module
Output terminal connection, the output terminal of the second source management module connects the input terminal of the charging identification module, described to fill
The output terminal of electric identification module connects the second interface component.
2. USB charging sockets according to claim 1, which is characterized in that the charge protocol control module includes charging
Protocol integrated test system chip U1, resistance R39 and capacitance C39, wherein：
The power input pin of the charge protocol control chip U1 passes through as the input terminal of the charge protocol control module
Resistance R39 is connected with the output terminal of first power management module, and the power input of the charge protocol control chip U1 is drawn
Foot is also by capacitance C39 for being grounded, and the feedback voltage output pin of the charge protocol control chip U1 is as the charging
First output terminal of protocol integrated test system module is connected with the second input terminal of the voltage detection module, and the charge protocol controls core
The anode output pin of piece U1 connects the first data contact pin of the first interface component, the charge protocol control chip U1's
Cathode output pin connects the second data contact pin of the first interface component.
3. USB charging sockets according to claim 2, which is characterized in that the voltage detection module includes thyristor
U17, infrared light-emitting diode U5-A, resistance R28, resistance R31, resistance R33, resistance R36, resistance R37, capacitance C37 and electricity
Hold C48, wherein：
The gate leve of the thyristor U17 controls chip as the second input terminal of the voltage detection module with the charge protocol
The feedback voltage output pin connection of U1, the anode of the thyristor U17 is for being grounded, the cathode of the thyristor U17 and institute
The cathode connection of infrared light-emitting diode U5-A is stated, the anode of the infrared light-emitting diode U5-A passes through the resistance
R37 is connected as the first input end of the voltage detection module with the output terminal of first power management module, the electricity
Resistance R31 is in parallel with the infrared light-emitting diode U5-A, and the anode of the infrared light-emitting diode U5-A is also by described
Resistance R28, the capacitance C37 and the resistance R36 are connected with the output terminal of first power management module, the resistance
The series circuit of R28 and the C37 are in parallel with the capacitance C48, the thyristor U17, the resistance R28 and the capacitance
The series circuit of C37 is in parallel with the resistance R33；
The feedback module includes phototriode U5-B and capacitance C12, wherein：
The capacitance C12 is in parallel with the phototriode U5-B, and the base stage of the phototriode U5-B is as the feedback
The input terminal of module is used to receive the optical signal of the infrared light-emitting diode U5-A transmittings, the phototriode U5-B's
For emitter for being grounded, the collector of the phototriode U5-B is electric as the output terminal of the feedback module and described first
The second input terminal connection of source control module.
4. USB charging sockets according to claim 1, which is characterized in that first power management module includes：First
Transformer T1, the first power management chip U2, the first control submodule, synchronous rectification submodule, wherein, first transformer
T1 includes the first primary coil, the second primary coil and secondary coil；
The first primary coil of the first transformer T1 as first power management module first input end with it is described
The output terminal connection of power circuit, the PWM output pins of the first power management chip U2 pass through the described first control submodule
Block is connected with the both ends of the first primary coil of the first transformer T1, the power input of the first power management chip U2
Pin is connected with the second primary coil of the first transformer T1, the feedback voltage pin of the first power management chip U2
The second input terminal as first power management module is connected with the output terminal of the feedback module, first transformer
Input terminal of the both ends of the secondary coil of T1 respectively with the synchronous rectification submodule is connected, the synchronous rectification submodule it is defeated
Outlet as first power management module output terminal respectively with the first input end of the voltage detection module and described
The input terminal connection of charge protocol control module.
5. USB charging sockets according to claim 4, which is characterized in that first power management module further includes
One overcurrent protection submodule, the first end of the first overcurrent protection submodule and the electric current of the first power management chip U2
Pin connection is detected, the second end of the first overcurrent protection submodule and the PWM of the first power management chip U2 are exported
Pin connects.
6. USB charging sockets according to claim 4, which is characterized in that first power management module further included
Temperature protection submodule, the first end of the overheat protector submodule and the temperature detection pin of the first power management chip U2
Connection, the second end of the overheat protector submodule are connected with the second primary coil of the voltage device T1.
7. USB charging sockets according to claim 1, which is characterized in that the charging identification module, which includes charging, to be identified
Chip U5, resistance R10 and capacitance C14, the input pin of the charging identification chip U5 is as the defeated of the charging identification module
Enter end to be connected with the output terminal of the second source management module by resistance R10, the input of the charging identification chip U5 is drawn
For foot also by capacitance C14 for being grounded, the anode output pin of the charging identification chip U5 connects the second interface component
The first data contact pin, the cathode output pin of the charging identification chip U5 connects the second data of the second interface component
Contact pin.
8. USB charging sockets according to claim 1, which is characterized in that the second source management module includes second
Power management chip U4 and the second transformer T2, wherein, the second transformer T2 has the first primary coil, the second primary line
Circle and secondary coil；
Input terminal and the power supply of the first primary coil of the second transformer T2 as the second source management module
The first of the output terminal connection of circuit, the PWM output pins of the second source managing chip U4 and the second transformer T2
The both ends connection of primary coil, the of the power supply output pin of the second source managing chip U4 and the second transformer T2
Two primary coils connect, the output terminal and institute of the secondary coil of the second transformer T2 as the second source management module
State the input terminal connection of charging identification module.
9. USB charging sockets according to claim 8, which is characterized in that the second source management module further includes Xiao
Special base rectification submodule, the secondary coil of the second transformer T2 are known by the Schottky rectification submodule and described charge
The input terminal connection of other module.
10. USB charging sockets according to claim 8, which is characterized in that the second source management module further includes
Two overcurrent protection submodules, the first end of the second overcurrent protection submodule and the electric current of the second source managing chip U4
Pin connection is detected, the second end of the second overcurrent protection submodule is used to be grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405591.6U CN207426748U (en) | 2017-10-26 | 2017-10-26 | USB charging sockets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405591.6U CN207426748U (en) | 2017-10-26 | 2017-10-26 | USB charging sockets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426748U true CN207426748U (en) | 2018-05-29 |
Family
ID=62309637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721405591.6U Active CN207426748U (en) | 2017-10-26 | 2017-10-26 | USB charging sockets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049220A (en) * | 2019-12-25 | 2020-04-21 | 上海摩勤智能技术有限公司 | Charging circuit, terminal equipment and charging system |
| CN113078696A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Electronic device, charging method and device thereof, and readable storage medium |
-
2017
- 2017-10-26 CN CN201721405591.6U patent/CN207426748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049220A (en) * | 2019-12-25 | 2020-04-21 | 上海摩勤智能技术有限公司 | Charging circuit, terminal equipment and charging system |
| CN113078696A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Electronic device, charging method and device thereof, and readable storage medium |
| CN113078696B (en) * | 2020-01-03 | 2024-05-07 | 北京小米移动软件有限公司 | Electronic device, charging method and device thereof, and readable storage medium |
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Address after: 516007 b1-b3 workshop, No.39 Hechang 6th Road East, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: Legrand intelligent electric (Huizhou) Co.,Ltd. Address before: 516007 b1-b3 workshop, No.39 Hechang 6th Road East, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: TCL-LEGRAND INTERNATIONAL ELECTRICAL (HUIZHOU) Co.,Ltd. |