CN107508331A - Charhing unit and charging device - Google Patents
Charhing unit and charging device Download PDFInfo
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- CN107508331A CN107508331A CN201710562362.3A CN201710562362A CN107508331A CN 107508331 A CN107508331 A CN 107508331A CN 201710562362 A CN201710562362 A CN 201710562362A CN 107508331 A CN107508331 A CN 107508331A
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- electrically connected
- charhing unit
- supply port
- power
- charging device
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Classifications
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- H02J7/0003—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The embodiment of the present invention provides a kind of charhing unit, including：The DC DC modular converters electrically connected with power subsystem, for receiving and handling the electric current of the power subsystem output；The first supply port and the second supply port that are electrically connected by port control circuit electrically connected with external equipment；Port control circuit includes：The charge protocol module electrically connected with DC DC modular converters and the first supply port, for controlling the power output of charhing unit；The micro-control module electrically connected with charge protocol module and the second supply port, at least it is used to control charge protocol module to work when external equipment accesses charhing unit by the second supply port；First supply port is USB Type C interface, and the second supply port is USB A interfaces.Present invention also offers corresponding charging device, including：The power subsystem and the charhing unit of multiple parallel configurations electrically connected with power supply.The present invention can improve the interface utilization rate and charge efficiency of charging device, reduce manufacturing cost.
Description
Technical field
The present invention relates to charging field, and in particular to a kind of charhing unit and charging device.
Background technology
With the appearance of USB Type-C interfaces, increasing smart machine starts to introduce this interface.Type-C connects
Mouth has various advantages, such as：Largest data transfer speed reaches the 10Gbit/ seconds；The size at interface socket end be about 8.3mm ×
The slim designs of 2.5mm；Support, from pluggable " positive anti-plug " function of tow sides, 10,000 times can be born and plugged repeatedly；It is equipped with
The standard specification connecting line of Type-C connectors can be by 3A electric currents, while also support the USB beyond existing USB power supply capacities
PD, maximum 100W power can be provided.
Due to the popularization of USB Type-C interfaces, and the requirements at the higher level to charging rate, there are support USB PD
The charging device of (USB Power Delivery power transmission protocols).The charging device of USB PD functions can be directed to different
USB Type-C equipment provides suitable voltage, improves the charging rate to equipment.
However, because Type-C interfaces are new interfaces, its compatibility to other equipment remains in following a period of time
In some problems.Before interface popularization, it is also necessary to carrying out interface conversion using various conversion equipments can smoothly use,
Most USB A interfaces are especially used in the prior art.
In process of the present invention is realized, inventor has found that at least there are the following problems in correlation technique：At present, government,
The public places such as hotel, hospital, school, high ferro, airport, dining room, when charging device (such as charging station) is multiple mobile phones, IPAD
When being charged Deng electronic product, if the charging all Type-C types of line interface, in face of the USB A interface equipments of substantial amounts,
Charging device can not be that they are charged；If all USB type-As of the charging line interface of charging device, in face of increasingly
More Type-C interface equipments, charging device also will be lack scope for their abilities.Even if some charging wire of charging device is Type-C
Interface, another part charging wire are USB A interfaces so that corresponding to the equipment of the two can be charged, if but at certain section
Between the equipment that uses of crowd that is charged by charging device be Type-C interfaces, then the quantity of Type-C interfaces may meet not
The quantity of charging equipment, causes the decline of charge efficiency；Now all USB A interfaces are but idle state, unrestrained in vain
The resource of another part is taken.Vice versa.Therefore, because the mobility of crowd, can not also make to the two progress quantity distribution
Utilizing for charging inlet maximizes, so as to cause the waste of the decline of charge efficiency and resource.
The content of the invention
The embodiment of the present invention provides a kind of charhing unit and charging device, at least to solve the prior art of above-mentioned elaboration
In at least one problem.
On the one hand the embodiment of the present invention provides a kind of charhing unit, including：
The DC-DC modular converters electrically connected with power subsystem, for receiving and handling the electric current of the power subsystem output；
The first supply port and the second supply port electrically connected with external equipment, first supply port and described the
Two supply ports are electrically connected by port control circuit；
Wherein, the port control circuit includes：
The charge protocol module electrically connected with the DC-DC modular converters and first supply port, for controlling
State the power output of charhing unit；
The micro-control module electrically connected with the charge protocol module and second supply port, at least it is used in outside
Equipment controls the charge protocol module to work when accessing the charhing unit by second supply port；
First supply port is USB Type-C interfaces, and second supply port is USB A interfaces.
Charhing unit provided in an embodiment of the present invention, USB Type-C interfaces and USB A two are provided in supply port
Kind of interface type, allow the interface type for the electronic equipment that user uses according to oneself come selection port.Meeting simultaneously makes
With the demand of the crowd of two kinds of interfaces of USB Type-C interfaces and USB A, the idle possibility of charhing unit, lifting are reduced
Service efficiency, reduces the wasting of resources.
Another aspect of the present invention provides a kind of charging device, including：
The power subsystem electrically connected with power supply, for receiving the electric current from the power supply and being handled,
Electric current after processing is exported；
The charhing unit of any of the above-described embodiment of multiple parallel configurations.
Charging device provided by the invention is all provided with two kinds of interfaces in each group of charhing unit, and one is USB
Type-C interfaces, another is USB A interfaces, and two interfaces are shared a DC-DC modular converter, either connect using Type-C
Mouthful or Type-A interfaces external equipment is charged, all without the charging circuit of charging device is made by idle so as to causing
Waste.Conversely, because one group of charhing unit has two kinds of interfaces, can select to connect accordingly according to the interface type of external equipment
Mouthful type charges, and selectively greatly increases, improves the utilization rate of charging device, reduce cost.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of the charhing unit of one embodiment of the invention；
Fig. 2 is the circuit diagram of the charhing unit of a specific embodiment of the invention；
Fig. 3 is the system architecture diagram of the charging device of one embodiment of the invention；
Fig. 4 is the circuit diagram of the charging device of a specific embodiment of the invention；
Fig. 5 is the structural representation of the power subsystem of one embodiment of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can
To be mutually combined.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
Any this actual relation or order be present.Moreover, term " comprising ", "comprising", not only including those key elements, but also
Including the other element being not expressly set out, or also include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the key element limited by sentence " including ... ", it is not excluded that including the key element
Other identical element in process, method, article or equipment also be present.
Fig. 1 is the structural representation of the charhing unit 1 of one embodiment of the invention.As shown in figure 1, the charhing unit includes
DC-DC modular converters 10, the first supply port 20, the second supply port 30 and port control circuit 40.
DC-DC modular converters 10 are used for the direct current for receiving and handling power subsystem output, and export to supply port, electricity
Source unit is used to provide electric energy to charhing unit 1.
The first supply port 20 and the second supply port 30 of parallel configuration are used to be connected with external equipment with to outside this
Equipment transmits electric current, and the first supply port 20 is electrically connected with the second supply port 30 by port control circuit 40.
Wherein, port control circuit 40 includes：The charging electrically connected with the supply port 20 of DC-DC modular converters 10 and first
Protocol module 41, the charge protocol module are used for the power output for controlling charhing unit 1；And with charge protocol module 41 and
The micro-control module 42 of two supply ports 30 electrical connection, micro-control module 42 are at least used to pass through the second feeder ear in external equipment
Charge protocol module 41 is controlled to make its work when mouth 30 accesses charhing unit 1.
In the embodiment of the present invention, the first supply port is USB Type-C interfaces, and the second supply port is USB A interfaces.
It should be noted that when using charhing unit, when the first supply port 20 is connected to external equipment with outer to this
During portion's equipment charge, now the second supply port 30 can not connect other external equipments and be charged, and vice versa.I.e. the two is
External equipment can only select a progress when charging.
Charhing unit provided in an embodiment of the present invention, USB Type-C interfaces and USB A two are provided in supply port
Kind of interface type, allow the interface type for the electronic equipment that user uses according to oneself come selection port.Meeting simultaneously makes
With the demand of the crowd of two kinds of interfaces of USB Type-C interfaces and USB A, the idle possibility of charhing unit, lifting are reduced
Service efficiency, reduces the wasting of resources.
In some embodiments, charge protocol module 41 supports USB PD agreements.USB PD agreements (USB-Power
Delivery, power transmission protocol) it is the agreement in a cable while supporting up to 100W power transmissions and data to communicate
Specification.If realizing USB PD in USB Type-C ports, transmission between USB device is allowed for be up to 100W (20V/
Power 5A), greatly accelerate the charging rate to equipment.Because Type-A interfaces pass through change-over circuit and Type-C interfaces company
Connect, therefore in the present embodiment, it is that external equipment carries out fast charge that Type-A interfaces, which can also be based on USB PD agreements,.
The charhing unit that the present embodiment provides be able to can be being born no more than external equipment by supporting USB PD agreements
The charging voltage and electric current of output are adjusted on the basis of maximum voltage so that charhing unit can be set to different outsides
It is standby that different charging modes, including fast charge are provided, maximize charging effect.
In some embodiments, DC-DC modular converters include：For filtering out the input filter of ripple and voltage stabilizing input voltage
Wave circuit, the DC-DC reduction voltage circuits being connected with the input filter circuit, the energy storage electricity being connected with the DC-DC reduction voltage circuits
Sense.
In the present embodiment, DC-DC modular converters can coordinate with charge protocol module, to transmitting to the first supply port and
The output voltage of second supply port is adjusted.Wherein DC-DC reduction voltage circuits can use synchronous buck code converter
EUP3270, encapsulation use SOP-8EP modes.EUP3270 can drive 4A continuous loads and carry excellent Line and load regulation
Rate, its input voltage range are 4.5V to 30V, can be operated under CC (constant current) pattern or under CV (constant pressure) pattern.
In some embodiments, charhing unit 1 also includes the charging indication 50 electrically connected with port control circuit,
The charging indication is used to indicate the charged state to external equipment, consequently facilitating user grasps the charging of external equipment in time
Situation.Charging indication can carry out the display of corresponding information by the bright state and color of multiple LEDs.For example, fill
Electric indicating circuit can be connected with two LEDs, and a LED is red, and another LED is green.When red colored lamp and green
When colored lights goes out, show that now charhing unit corresponding to the charging indication is not inserted into external equipment and charged；It is hot
When colored lights BG colored lights goes out, show the charhing unit and charged for external equipment, i.e. the electricity underfill of external equipment；
And when red colored lamp go out green light it is bright when, show that the charhing unit has completed the charging process to external equipment, i.e. external equipment
Electricity has been filled with.As shown in Fig. 2 charging indication 50 can be made up of 1LED, 1R14,1R13.
Below with reference to Fig. 2, the present invention will be further described.Fig. 2 is the charhing unit 1 of a specific embodiment of the invention
Circuit diagram.The mark of USB Type-C interfaces is in figure, and the mark of USB A interfaces is.USB PLUG are USB A
The plug of interface.Pin S represents the metal shell of the USB A mouths in USB A plugs.1N1,1N2,1N3 and 1N4 represent row's pin,
Wherein 1N1 connects with 1N3, and 1N2 connects with 1N4.Title, numerical values recited corresponding to the device are labelled with beside each device,
And/or model, specification, packaged type etc..Specific marked content refers to accompanying drawing, specific embodiment of the invention part to this no longer
Illustrate.
Specifically, as shown in Fig. 2 port control circuit includes PMOS (Q1), agreement IC (U1) is charge protocol module
41 and MCU (U12) is micro-control module 42.The process of charge protocol module control charhing unit output voltage is as follows：
After PD (Power Device, receiving end equipment) equipment is external equipment access USB Type-C interfaces, communication
Signal is sent to agreement IC (U1) by CC pin (CC1 or CC2, being connected respectively by arranging pin IN1 with IN3, IN2 with IN4).Signal
After linking up successfully, U1 12 pin PWR_ENB export a low level to G pin so that PMOS (Q1) turns on.Now U1 16 pin
3 pin of one pwm signal modulation DC-DC reduction voltage circuit (1U1) of output, output voltage signal are fed back to by R2, R3, R4, C10
Agreement IC (U1) 3 pin, U1 adjust the pwm signal of 16 pin according to feedback signal, output voltage is reached the electricity of PD equipment needs
Pressure.
After external equipment accesses USB A interfaces, 1USB shells are connected with output ground, and pin 1Wakeup is become by high level
For low level, after MCU (U12) 18 pin receive low level, export low level, make U1 CC pin pass through 1R11 5.1K to.So
U1 12 pin export a low level afterwards so that PMOS (Q1) turns on, output acquiescence direct current 5V voltages.Then U1 5,6 pin
With output equipment communication (Content of communciation is the height of output voltage), U1 16 pin export a PWM letter after signal communicating success
Number modulation 1U1 3 pin, output voltage signal feeds back to agreement IC (U1) 3 pin by R2, R3, R4, C10, and U1 is according to feedback letter
Number regulation 16 pin pwm signal so that output voltage reaches PD equipment required voltages.
DC-DC modular converters also include the output filter capacitor and voltage feedback circuit being connected with the energy storage inductor.Such as
Shown in Fig. 2, in DC-DC modular converters, 1E1,1C1,1C2 form input filter circuit, are inputted for filtering out ripple with voltage stabilizing
Voltage；1L1 is energy storage inductor, and 1E2 is output filter electric capacity, and 1U1,1L1,1E2 form DC-DC buck main circuits；1R5、1R6、
1R4,1R2,1R3,1Z1,1Q1 form voltage feedback circuit；1C4 is 1U1 LDO storage capacitors.The above constitutes efficiently
Direct current inversion of direct current reduction voltage circuit.Wherein, 16 pin for 1N4 to the U1 that 1U1 3 pin pass through 1N2 map interlinkings 4, U1 16 pin are received
PWM voltage control signals, so as to obtain output voltage at 1E2 both ends.
Here, 1U1 pin is defined as follows：1 pin is input script, and 2 pin are ground connection, and 3 pin are conveying control pin, and 4 be FB
Ration the power supply presser feet, 5 pin are CS pin ground connection, and 6 pin be filter capacitor, 7 pin ground connection, and 8 pin are grounded, and 9 pin are SW inductance switch pin.
In some embodiments, charhing unit 1 can also include voltage detection module 60.Voltage detection module 60 with it is micro-
Control module 42 electrically connects, for detecting external equipment when external equipment is linked into the first supply port or the second supply port
Required supply voltage and/or the output voltage of detection first supply port or second supply port.Specifically, such as
Shown in Fig. 2, voltage detection module 60 includes resistance R15, R16, R17 and electric capacity C7.
Fig. 3 is the system architecture diagram of the charging device 100 of one embodiment of the invention.As shown in figure 3, the charging device bag
Include：
The power subsystem 2 electrically connected with power supply, for receiving the electric current from the power supply and being handled,
Electric current after processing is exported；
Charhing unit 1 described in any of the above-described embodiment of multiple parallel configurations.
It is direct current that power subsystem 2, which is used for the exchange electricity output for carrying out self powered supply of input, and the direct current of output is electric
Scope is pressed between 21.2-22.5V, such as 22V.Power supply to power subsystem 2 input can be 85V~265V exchange
Electricity, such as 220V civil powers.
In actual use, charging device is downlink port (downstream facing port, DFP), connects outside
Equipment is uplink port (upstream facing port, UFP).The external equipment can be mobile phone, tablet personal computer, MP4,
The various chargeable electronic products such as MP3, portable power source, virtual reality headgear (VR headgears).Charhing unit in charging device
When quantity is less than 3, the charging device can be portable power source；When the quantity of charhing unit is more than 3, charging device can be with
It is the USB charging stations with multiple USB output ports.
Each charhing unit 1 can be connected by two supply ports with external equipment, and exported and passed through to external equipment
Crossing after being depressured has the direct current supply of predeterminated voltage.Preset voltage value can be set as needed, such as be set it to
9V, 12V or 20V.
Port control circuit 40 in each charhing unit is with being used for according to the corresponding external equipment of each charhing unit
Maximum charging voltage controls the output voltage of each charhing unit, by beating opening/closing Vbus so as to controlling charhing unit 1
Power output.
Micro-control module 42 can be MCU microcontrollers.When the quantity for the charhing unit 1 that charging device 100 includes is more
When, the quantity of MCU microcontrollers can also suitably increase according to actual disposition situation.For example, when the quantity of charhing unit is 5
When, because a MCU chip can be connected with two charhing units, now charging device needs at least three MCU chips.
Charging device provided by the invention is all provided with two kinds of interfaces in each group of charhing unit, and one is USB
Type-C interfaces, another is USB A interfaces, and two interfaces are shared a DC-DC modular converter, either connect using Type-C
Mouthful or Type-A interfaces external equipment is charged, all without the charging circuit of charging device is made by idle so as to causing
Waste.Conversely, because one group of charhing unit has two kinds of interfaces, can select to connect accordingly according to the interface type of external equipment
Mouthful type charges, and selectively greatly increases, improves the utilization rate of charging device, reduce cost.
Further, since every group of charhing unit supports USB PD, when not only USB Type-C interfaces have external equipment access
Output voltage can adjust, and USB A interfaces have makes charge protocol module same during external equipment access by micro-control module
Output voltage can be adjusted so that the equipment with USB A interfaces can also be charged by all kinds of charged forms such as fast charge.
Especially, because the maximum output for supporting 20V, 5A of the USB Type-C interfaces of external equipment, USB Type-C connect
The current value that each pin of mouth can be born is limited.The input power of each charhing unit is up to 120W so that charging dress
The power output put is limited within 120W.Therefore, to ensure the normal transmission of voltage, port control circuit can be according to corresponding
Charhing unit output current value and magnitude of voltage product whether exceed power threshold (i.e. 120W) come control the group charging singly
Whether the charging path of member turns off, so that it is determined that in charging device charhing unit conducting quantity.
Charging device based on USB PD agreements in the embodiment of the present invention, charhing unit can be adjusted by USB PD agreements
Output voltage, so as to the stable electric current to outside equipment charge., can be to greatest extent especially again by impedance-compensated processing
Ground extends the time of constant-current charge, shortens the time of constant-voltage charge, and possibility is provided for further lifting charging rate.
Fig. 4 is the circuit diagram of the charging device of a specific embodiment of the invention.Wherein, the charging device has 5 groups of chargings
Unit.It should be noted that including the charhing unit of multiple parallel configurations to represent charging device, the circuit diagram eliminates often
The circuit diagram of charge protocol module and Type-C interfaces in individual charhing unit.
It is similar with Fig. 2, title, numerical values recited corresponding to the device are also labelled with beside each device in Fig. 4, and/or
Model, specification, packaged type etc..Wherein, the structure of every group of charhing unit including all same such as device, in order to distinguish, first
In group charhing unit 1 is all marked before the title of most of device (except micro-control module), it is most of in second group of charhing unit
2 are all marked before the title of device ... ..., by that analogy.Specific marked content refers to accompanying drawing, specific embodiment of the invention part
To this, it will not be described.
In some embodiments, power subsystem can include leakage protection module, electric energy metering module and AC-DC conversions
Module.Electric current flows into power subsystem from power supply, is changed successively by leakage protection module, electric energy metering module and AC-DC
Exported after resume module.When the phase line of protected circuit is connected directly or by unexpected load to the earth, residue can be produced
Electric current, when the residual current is more than certain numerical value, leakage protection module shuts off the circuit, to keep whole circuit normal
Work.Electric energy metering module is used to measuring and showing the parameters such as voltage, electric current, frequency factor and the electric energy of power subsystem in real time.
The alternating current that AC-DC conversion module is used for self powered supply in future is converted to direct current.
In another embodiment, ac power input end 21, the power supply that power subsystem 2 can include being linked in sequence are opened
Powered-down road 22.Fig. 5 is the structural representation of the power subsystem of one embodiment of the invention.As shown in figure 5, wherein described power switch
Circuit 22 includes EMI filter circuit 201, circuit of power factor correction 202, transformer 203 and the rectifying and wave-filtering electricity being linked in sequence
Road 204, the circuit of power factor correction 202 can also be connected with standby power circuit 205, and the transformer 203 can be with
It is connected with controller 206.Circuit of power factor correction 202 can effectively improve electric power utilization rate, energy-conserving and environment-protective so that electric power
Effective output be improved, so as to reach save electric power purpose.
Preferably, controller 206 is integral type integrated manipulator, wherein being integrated with pfc controller and PWM controller.
Controller 206 in power subsystem is integrated form controller, wherein being integrated with pfc controller and PWM controller, solely
Special integrated design, makes it have higher performance, and can provide comprehensive defencive function, while can reduce parts number
Mesh, simplify design and reduce material cost so that its quiescent dissipation≤0.5W, PFC value >=0.90, average efficiency
≥0.90。
Power subsystem can also use other existing devices, and the present invention will not be repeated here.
In some embodiments, the quantity for the charhing unit that charging device includes is 10~20.The present embodiment has
Output port is more, can Intelligent Recognition, the characteristics of charging rate is fast, be suitable for government, hotel, hospital, school, high ferro, airport,
The public places such as dining room use.
Preferably, charging device can also include the intelligent temperature control unit 3 being connected with power subsystem, for detecting and controlling
Temperature inside charging device.For example, when charging device temperature in chassis is more than 45 degree, negative temperature temperature-sensitive device TH resistance
Threshold voltage can be reduced to, operable amplifier can export high level, metal-oxide-semiconductor conducting, and fan direct current 5V motors open work, fan
High-speed rotation, make air rapid convective, force to reduce temperature in chassis, ensure the normal work of charging device.
Especially, charging device also includes the disinfection unit 4 for being electrically connected to power subsystem, and it includes built-in AC-DC power supplys
Circuit, ultraviolet germicidal lamp tube set and ultraviolet germicidal lamp tube.Ultraviolet germicidal lamp is actually to belong to a kind of low pressure mercury lamp, low
Pressure mercury lamp be using relatively low mercury vapor pressure (<10-2Pa) it is intensified and sends ultraviolet light, its luminescence spectrum mainly there are 253.7nm ripples
Long and two ultraviolets of 185nm wavelength, can make microbial cell nucleic acid, magma albumen and enzyme that chemical change occur and dead
Die.The present embodiment periodically can carry out sterilizing, so as to prevent by Bluetooth AP P remote control disinfection units to charging terminal
The cross-infection for infecting disease is produced between operator.
As the further optimization of above-described embodiment, charging device can also include under-voltage protecting circuit, the under-voltage guarantor
Protection circuit is connected with MCU.When under-voltage, temporarily disconnected is carried out to charging process using MCU so that the course of work of charging device
It is more stable, add its service life.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a kind of charhing unit, including：
The DC-DC modular converters electrically connected with power subsystem, for receiving and handling the electric current of the power subsystem output；
The first supply port and the second supply port electrically connected with external equipment, first supply port supply with described second
Electric port is electrically connected by port control circuit；
Wherein, the port control circuit includes：
The charge protocol module electrically connected with the DC-DC modular converters and first supply port, for controlling described fill
The power output of electric unit；
The micro-control module electrically connected with the charge protocol module and second supply port, at least it is used in external equipment
The charge protocol module is controlled to work when accessing the charhing unit by second supply port；
First supply port is USB Type-C interfaces, and second supply port is USB A interfaces.
2. charhing unit according to claim 1, wherein, the charge protocol module supports USB PD agreements.
3. charhing unit according to claim 1, wherein, the DC-DC modular converters include：For filtering out ripple and steady
Press the input filter circuit of input voltage, the DC-DC reduction voltage circuits electrically connected with the input filter circuit, with the DC-DC
The energy storage inductor of reduction voltage circuit electrical connection.
4. charhing unit according to claim 1, in addition to the charging instruction electricity electrically connected with the port control circuit
Road, for indicating the charged state to external equipment.
5. a kind of charging device, including：
The power subsystem electrically connected with power supply, for receiving the electric current from the power supply and being handled, it will locate
Electric current output after reason；
The charhing unit according to any one of claim 1-4 of multiple parallel configurations.
6. charging device according to claim 5, wherein, the power subsystem includes the AC power input being linked in sequence
End, power switch circuit, wherein the power switch circuit includes EMI filter circuit, the PFC electricity being linked in sequence
Road, transformer and current rectifying and wave filtering circuit.
7. charging device according to claim 5, in addition to the intelligent temperature control unit electrically connected with the power subsystem, use
In detecting and control the temperature inside the charging device.
8. charging device according to claim 5, in addition to the disinfection unit electrically connected with the power subsystem, described to disappear
Malicious unit includes AC-DC power circuits, ultraviolet germicidal lamp tube set and ultraviolet germicidal lamp tube.
9. according to the charging device any one of claim 5-8, wherein, the quantity of the charhing unit is 10~20
It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562362.3A CN107508331A (en) | 2017-07-11 | 2017-07-11 | Charhing unit and charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562362.3A CN107508331A (en) | 2017-07-11 | 2017-07-11 | Charhing unit and charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107508331A true CN107508331A (en) | 2017-12-22 |
Family
ID=60679534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710562362.3A Pending CN107508331A (en) | 2017-07-11 | 2017-07-11 | Charhing unit and charging device |
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| CN (1) | CN107508331A (en) |
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| CN109117405A (en) * | 2018-07-30 | 2019-01-01 | 合肥联宝信息技术有限公司 | A kind of TypeC equipment and its control method |
| CN110289658A (en) * | 2019-07-16 | 2019-09-27 | 青米（北京）科技有限公司 | A kind of more mouthfuls of out-put supply managing devices of USB |
| CN110380489A (en) * | 2019-08-08 | 2019-10-25 | 珠海英集芯半导体有限公司 | A kind of fast charge circuit that can automatically adjust power and method |
| CN110770997A (en) * | 2018-08-16 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Power supply method and equipment |
| CN111509814A (en) * | 2020-05-29 | 2020-08-07 | 维沃移动通信有限公司 | Data line and charging equipment |
| CN111817379A (en) * | 2020-07-14 | 2020-10-23 | 维沃移动通信有限公司 | Charger, data line and charging equipment |
| CN111817380A (en) * | 2020-07-14 | 2020-10-23 | 维沃移动通信有限公司 | Charger, data line, charging equipment and electronic equipment |
| CN111886852A (en) * | 2019-02-15 | 2020-11-03 | 松下知识产权经营株式会社 | Image pickup apparatus |
| CN112701767A (en) * | 2020-12-10 | 2021-04-23 | 珠海格力电器股份有限公司 | Charging control device and method of motor controller and motor |
| CN113300423A (en) * | 2021-06-01 | 2021-08-24 | 闪耀现实(无锡)科技有限公司 | Connector and power supply control method applied to connector |
| WO2021237818A1 (en) * | 2020-05-26 | 2021-12-02 | 深圳市富兰瓦时技术有限公司 | Multiport energy storage battery |
| WO2024016737A1 (en) * | 2022-07-21 | 2024-01-25 | 浙江捷昌线性驱动科技股份有限公司 | Electric lifting/lowering mechanism |
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