CN108173327B - A kind of auto-power-off energy-saving protective device - Google Patents

A kind of auto-power-off energy-saving protective device Download PDF

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Publication number
CN108173327B
CN108173327B CN201810145898.XA CN201810145898A CN108173327B CN 108173327 B CN108173327 B CN 108173327B CN 201810145898 A CN201810145898 A CN 201810145898A CN 108173327 B CN108173327 B CN 108173327B
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China
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current
charging
terminals
module
main control
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CN108173327A (en
Inventor
刘媛媛
苑金水
王春霞
马雪亭
王伟
郭文松
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Tarim University
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Tarim University
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/042Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter
    • H02J7/045Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter in response to voltage or current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/027Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters with safety or indicating device

Abstract

Embodiment of the invention discloses a kind of auto-power-off energy-saving protective devices; the device includes current detection module and control module; during for default equipment charge; the electric signal that current detection module in real time exports the power supply adaptor that equipment is preset from this detects, and presets equipment to this by electric signal and whether completes charging process and judges.Connection after current detection module judges that default equipment completes charging process, between control module auto power off adapter and alternating current.By the device, even if power supply adaptor is not pulled up to after the charging process of default equipment, also can connection between auto power off adapter and alternating current, avoid power consumption of power supply adaptor after charging process, also eliminate security risk.

Description

A kind of auto-power-off energy-saving protective device
Technical field
The present embodiments relate to charge and discharge security technology areas, protect and fill more particularly, to a kind of auto-power-off energy-saving It sets.
Background technique
Electronic mobile device (for example, mobile phone, iPad, laptop etc.) in family needs often charging, such to fill Electric power-supply device (power supply adaptor) is often due to human factor, being not at them will not to the process of charging of mobile devices It is taken off from alternating current, causes these power supply adaptors always in power consumption.For example, being connected to the notebook electricity of power supply adaptor Brain is after fully charged, and power supply adaptor will continue to consume electric energy and there are security risks.For school dormitory, cell man Front yard, personnel's flow such as airport is big, the region of charging equipment Relatively centralized, and the safety of charging equipment and energy conservation are particularly important.
Therefore, charge protection device needs artificially to disconnect after fully charged the connection of charging equipment and alternating current;It is this disconnected Evolution formula be it is one-to-one charging equipment is protected, Qu He little is concentrated use in for students' dormitory mobile phone, laptop Area's electric vehicle concentrates charging zone usually to need a large amount of charging equipment and charge protection device and its connecting line, brings inconvenience.
During realizing the embodiment of the present invention, inventor has found that existing charging equipment after completing charging, needs Guaranteed by artificially disconnecting its connection with alternating current safely, avoid power consumption, this power-down mode is often due to human factor quilt Ignore, level of enforcement is low.
Summary of the invention
The technical problem to be solved by the present invention is to how solve existing charging equipment after completing charging, need to pass through Artificially disconnect its connection with alternating current guarantee safely, avoid power consumption, this power-down mode often since human factor is ignored, The low problem of level of enforcement.
Against the above technical problems, the embodiment provides a kind of auto-power-off energy-saving protective devices, including extremely Few one group of charge protection structure, charge protection structure described in every group include current detection module and control module, the electric current inspection It surveys module and connects the control module;
When power supply adaptor by presetting equipment is the default equipment charge, the current detection module is acquired from institute State the electric signal of power supply adaptor output;
The current detection module judges whether the charging process to the default equipment is completed according to the electric signal;
If the current detection module judges that the charging process of the default equipment is completed, the control module cuts off institute State the connection between power supply adaptor and mains terminal.
The embodiment provides a kind of auto-power-off energy-saving protective device, the device include current detection module and Control module, during for default equipment charge, current detection module is in real time to the power supply adaptor for presetting equipment from this The electric signal of output is detected, and is preset equipment to this by electric signal and whether is completed charging process and judges.It is examined in electric current After survey module judges that default equipment completes charging process, the company between control module auto power off adapter and alternating current It connects.It, also can be from dynamic circuit breaker even if not pulling up power supply adaptor to after the charging process of default equipment by the device Connection between switch power supply adapter and alternating current avoids power consumption of power supply adaptor after charging process, also eliminates Security risk.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the theory structure schematic diagram of auto-power-off energy-saving protective device provided by one embodiment of the present invention;
Fig. 2 is the integrated original of function of the current detection module that another embodiment of the present invention provides and control module Manage structural schematic diagram;
Fig. 3 is whether the charging process for the default equipment of current detection module detection that another embodiment of the present invention provides is complete At schematic illustration;
Fig. 4 be another embodiment of the present invention provide current detection module and control module are integrated in two devices respectively Theory structure schematic diagram on part;
Fig. 5 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The electrical block diagram set;
Fig. 6 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The circuit diagram for the current detection module set;
Fig. 7 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The circuit diagram for the control module set;
Fig. 8 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The entity structure diagram for the master-slave socket pinboard set;
Fig. 9 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The entity structure diagram for the power off patch board set;
Figure 10 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The electrical block diagram set;
Figure 11 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The circuit diagram set;
Figure 12 is the auto-power-off energy-saving protection dress including 4 groups of charge protection structures that another embodiment of the present invention provides The entity structure diagram for the charging panel set.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of theory structure schematic diagram of auto-power-off energy-saving protective device provided in this embodiment, referring to Fig. 1, The device includes at least one set of charge protection structure, and charge protection structure described in every group includes current detection module 101 and control Module 102, the current detection module 101 connect the control module 102;
When power supply adaptor 103 by presetting equipment is the default equipment charge, the current detection module 101 is adopted Collect the electric signal exported from the power supply adaptor 103 (to adopt between the battery 104 of default equipment and power supply adaptor 103 The electric signal of collection);
Whether the current detection module 101 judges complete to the charging process of the default equipment according to the electric signal At;
If the current detection module 101 judges that the charging process of the default equipment is completed, the control module 102 Cut off the connection between the power supply adaptor 103 and mains terminal 105.
It charges it should be noted that auto-power-off energy-saving protective device provided in this embodiment is suitable for any need Default equipment, for example, the default equipment can be mobile phone, computer, ipad, electric vehicle etc., the present embodiment is not done this specifically Limitation.The current detection module and control module connected during default equipment charge is one group of charge protection structure, automatically Power-off energy saving protective device can provide multiple groups charge protection structure simultaneously, with simultaneously in the charging process of multiple default equipment It plays a protective role.
According to the structure of Fig. 1 it is found that in practical applications, the function of current detection module and control module can be integrated On a device, the function of current detection module can also be integrated on a device, by the corresponding function of control module It is integrated on another device, the information exchange between current detection module and control module, this reality is carried out by communication unit It applies example and this is not particularly limited.
A kind of auto-power-off energy-saving protective device is present embodiments provided, which includes current detection module and control mould Block, during for default equipment charge, what current detection module in real time exported the power supply adaptor that equipment is preset from this Electric signal is detected, and whether is reached threshold value and is preset equipment to this and whether complete charging process by detecting electric signal and sentences It is disconnected.After current detection module judges that default equipment completes charging process, control module auto power off adapter and city Connection between electricity.By the device, even if power supply adaptor is not pulled up to after the charging process of default equipment, Also can connection between auto power off adapter and alternating current, avoid consumption of power supply adaptor after charging process Electricity also eliminates security risk.
Further, on the basis of the above embodiments, Fig. 2 is current detection module provided in this embodiment and control The integrated theory structure schematic diagram of the function of module, as shown in Fig. 2, the current detection module 101 includes current acquisition Unit (function that current detecting line and current detecting in Fig. 2 realize current acquisition unit), A/D converter and the first master control Unit;The control module include the second main control unit (in Fig. 2, by the first main control unit and the second main control unit it is integrated based on Unit is controlled, which can be by chip microcontroller, for example, passing through the first main control unit of STC89C52RC chip microcontroller With the function of the second main control unit) and relay;
During to the default equipment charge, the input terminal of the current acquisition unit is connected to the power adaptation Between device and the battery of the charging equipment, output end connects the A/D converter;The A/D converter connection described first Main control unit;
The current acquisition unit is used for electric signal transmission described in real-time detection to the A/D converter, and the A/D turns After the electric signal is converted to the current value of digital signal by parallel operation, it is transferred to first main control unit;
The current value and current threshold are compared by first main control unit, if the current value is less than the electricity Threshold value is flowed, then the charging process of the default equipment is completed, and second main control unit controls the relay, with disconnected Open the connection between the power supply adaptor and the mains terminal (city's electric jack in Fig. 2 is to provide the interface of alternating current).
Auto-power-off energy-saving protective device shown in Fig. 2 can be set near mains terminal, by current detection module and Control module integrates on a charging panel, and charging interface and use for connecting power supply adaptor are provided on charging panel In the current detecting interface of connection current detecting line.When to default equipment charge, the power supply adaptor for presetting equipment connects charging Interface is the corresponding electric current of the charging interface from the connecting line connection drawn between the power supply adaptor and battery of default equipment Detect interface.
Current threshold is the value of setting, and Fig. 3 is the charging that default equipment is detected the present embodiment provides current detection module The electric current of acquisition is carried out electric current comparison, to judge to fill default equipment referring to Fig. 3 by the schematic illustration whether journey is completed Whether electric process is completed, and after the completion of judging charging process, is realized by control relay and disconnects city's electric jack and power adaptation Connection between device.
Present embodiments provide a kind of auto-power-off energy-saving protective device, the device is by current detection module and control module Integrated, by the connection between power source for relay control adapter and alternating current, the setting of auto-power-off energy-saving protective device exists Alternating current side, so that the power supply adaptor of default equipment only needs to increase a connecting line connecting with current detecting interface, Convenient for presetting carrying for equipment power supply adaptor.
Further, on the basis of the various embodiments described above, Fig. 4 be it is provided in this embodiment by current detection module and Control module is integrated in the theory structure schematic diagram on two devices respectively, and referring to fig. 4, the current detection module further includes One communication unit, the control module further include the second communication unit;
First main control unit connects first communication unit, and second communication unit connects second master control Unit;
First main control unit judges that the charging process of the default equipment is completed, then passes through first communication unit The first prompt information that the charging process for sending the default equipment to second communication unit is completed;
After second communication unit receives first prompt information, first prompt information is sent to described Second main control unit, second main control unit control the relay, to disconnect the power supply adaptor and described Connection between mains terminal.
Current detection module is integrated on a device (for example, being integrated in master-slave socket pinboard in the present embodiment On), control module is integrated on another device (for example, being integrated in power supply socket), it, can when for default equipment charge Power supply adaptor to be inserted in power supply socket, the other end of power supply adaptor, which is connected to, to be integrated on master-slave socket pinboard, It will be connected in default equipment from the connecting line that master-slave socket pinboard is drawn.
Present embodiments provide a kind of auto-power-off energy-saving protective device, the device is by current detection module and control module It is integrated on two devices, only needs for the plug of power supply adaptor to be inserted in when presetting equipment charge in power supply socket respectively, it will The other end is connected with jack corresponding on master-slave socket pinboard, the line drawn from master-slave socket pinboard is connected to default In equipment, the connection that at most only needs that power supply adaptor is provided and is connect with master-slave socket pinboard relative to default equipment Line, charging cable architecture is simple, easy to carry, can easily protect to charging process.
Further, on the basis of the various embodiments described above, the current detection module setting is transferred in pin and box sub On plate, the control module is arranged on charging connectors;
At least one set of detection terminals are provided on the pin and box sub pinboard, each group of detection terminals include and institute The second terminals stating the first terminals of power supply adaptor connection and being connect with the default equipment,;
The current acquisition unit is from described in detection between each group of first terminals and second terminals Electric signal;
At least one third terminals connecting with the power supply adaptor, shown third are provided on the charging connectors The other end of terminals, which is connected, connects the mains terminal by relay;
Second main control unit controls the alternating current exported from the third terminals by the relay.
Specifically, Fig. 5 show it is provided in this embodiment include 4 groups of charge protection structures auto-power-off energy-saving protection dress The electrical block diagram set, referring to Fig. 5, includes current acquisition on master-slave socket pinboard corresponding to the schematic illustration of Fig. 4 Unit, A/D converter (include 4 groups of charge protection structures, the corresponding A/D conversion of each group of charge protection structure in Fig. 5 Channel), the first main control unit (main control unit 1 in Fig. 5) and the first communication unit (nothing in Fig. 5 in master-slave socket pinboard Line transparent transmission), independent 5V power supply is used for as the current detection module power supply in master-slave socket pinboard.Current detection module is (i.e. logical Overcurrent connecting line and current acquisition unit are acquired) it is connected to battery (battery to charge in default equipment) Between charging equipment (power supply adaptor of i.e. default equipment).Control module integrates in power off patch board, including the second master control Unit (main control unit 2 in Fig. 5), relay (4 groups of charge protection structures, corresponding one of each group of charge protection structure after Electric appliance) and the second communication unit (wireless transparent transmission in Fig. 5 power off patch board).It is power off patch board that mains power module, which is by alternating current, In circuit power supply equipment.
A kind of auto-power-off energy-saving protective device is present embodiments provided, which is integrated in male and female for current detection module In plug pinboard, control module is integrated in power off patch board, is provided as by master-slave socket pinboard and power off patch board pre- If the interface of equipment charge, simplifies charging process, facilitate operation.
Further, on the basis of the various embodiments described above, further include Interface Matching module and connect with each group of detection The control switch of line end connection;
First terminals of certain third terminals and certain group detection terminals are connected in the power supply adaptor, it is described pre- If equipment connects the second terminals of group detection terminals, after opening the control switch connecting with group detection terminals, institute It states Interface Matching module and is sent by second communication unit to first communication unit and start to match second mentioning for port Show information;
After second communication unit receives second prompt information, second main control unit is successively closed control Relay in module, the third prompt information until receiving the circuit communication that second communication unit is sent.
Further, on the basis of the various embodiments described above, second communication unit receives second prompt After information, second main control unit is successively closed the relay in control module, until receiving second communication unit The third prompt information of the circuit communication of transmission, comprising:
The Interface Matching module is sent by second communication unit to first communication unit pre-stored The identification information of third terminals corresponding with group detection terminals, second communication unit receive second prompt After information and the identification information, second main control unit is closed the relay of the corresponding third terminals of the identification information Device, whether decision circuitry is connected to, if not being connected to, is successively closed its in addition to the corresponding third terminals of the identification information The relay of its third terminals, until receiving the third prompt information.
It further, further include the instruction being connect with each group of detection terminals on the basis of the various embodiments described above Lamp;
After detecting that control switch is opened, indicator light corresponding with the detection terminals of control switch connection is lighted.
Fig. 6 shows the electricity of the auto-power-off energy-saving protective device provided in this embodiment for including 4 groups of charge protection structures The circuit diagram of detection module control section is flowed, it includes 4 groups of charge protection structures from dynamic circuit breaker that Fig. 7, which is shown provided in this embodiment, The circuit diagram of the control module of electric energy-saving protective device, it includes 4 groups of charge protection structures that Fig. 8, which is shown provided in this embodiment, The entity structure diagram of the master-slave socket pinboard of auto-power-off energy-saving protective device, it includes 4 that Fig. 9, which is shown provided in this embodiment, The entity structure diagram of the power off patch board of the auto-power-off energy-saving protective device of group charge protection structure.
Referring to Fig. 5, Fig. 8 and Fig. 9, auto-power-off energy-saving protective device provided in this embodiment is mainly turned by master-slave socket Fishplate bar and power off patch board composition, master-slave socket pinboard include the multichannel charging equipment jack concentrated on panel and successively connect Current acquisition unit, multichannel A/D conversion module, main control unit 1, wireless transparent transmission module and the power supply power supply unit connect.It is disconnected Electric socket includes the sequentially connected wireless transparent transmission module being included in socket, main control unit 2, multicircuit relay module and takes In the power module of alternating current.
Current acquisition unit in the present embodiment uses ACS712ELCTR-05B electric current induction module, and power supply Vcc is 5V, output range are ± 5V, and input is good linear relationship, coefficient 185mV/A, input in range ability with output Relationship with output is Vout=2.5+0.185*Ip.When Ip=0, that is, when not having input current, corresponding output voltage is 2.5V.The voltage signal generally exported is between 0.5V~4.5V.
A/D conversion module use PCF8591AD conversion module, operating voltage be 2.5V~6V, PCF8591 be monolithic, 8 cmos data samplers of single supply low-power consumption have 4 tunnel simulation inputs, an output and a serial I2C-interface.Device Address, control and the data of part pass through the I2C bus transfer of two lines.
Referring to Fig. 6 and Fig. 7, main control unit 1 and main control unit 2 are all made of STC89C52RC single-chip minimum system, such as Fig. 6 It is shown, power circuit is specifically included in current detection module control section, crystal oscillating circuit, reset circuit, key control circuit, is referred to Indication lamp circuit, eeprom circuit.
Power circuit is powered using 5V, connects bulky capacitor and after decoupling capacitor access ground connection through LED and limit by switch Leakage resistance ground connection ,+5V and be separately connected the VCC (40 foot) and GND (20 foot) of single-chip microcontroller.As shown in fig. 6, power circuit packet Include the LED5 connecting with 5V power supply, ground resistance R16, capacitor C6, C7 and C8, switch K2.
Crystal oscillating circuit is accessed the crystal oscillator of a 11.0592M, the capacitor of additional two 20pF by 18 feet of single-chip microcontroller and 19 feet To help crystal oscillator starting of oscillation, and maintain the stabilization of oscillator signal.Crystal oscillating circuit includes crystal oscillator Y1, capacitor C4 and C5.
Reset circuit accesses on 9 foot RST reset pin RST of single-chip microcontroller.Reset circuit includes switch K1, capacitor C2 and electricity Hinder R5.
As shown in fig. 6, key control circuit (circuit i.e. corresponding with the control switch of each group of detection terminals connection) Key is connect by pull-up resistor and is grounded No. 4 channel selectors formed, single-chip microcontroller P2.0~P2.4 pin is accessed, by monolithic machine testing Whether key is pressed.Each control switch connects a resistance, and resistance R12, R13, R14 and R15 in Fig. 6 are pull-up resistor.
As shown in fig. 6, further including the indicator light circuit of control instructions lamp, which includes one with current-limiting resistance The base stage of the triode of connection is held, the other end of 4 road current-limiting resistances is respectively connected to single-chip microcontroller P1.0~P1.3 pin, collector Connection+5V, emitter connection LED are grounded after being followed by LED current-limiting resistance, triode after single-chip microcontroller control pin provides low level Conducting, lampet are lighted, and charged state is used to refer to.Wherein, as shown in fig. 6,4 road indicator lights be respectively LED1, LED2, LED3 and LED4, it is respectively R1, R2, R3 and R4 that the model of triode, which selects 9012,4 road current-limiting resistances,.
As shown in fig. 6, Interface Matching module is realized by eeprom circuit, eeprom circuit is by 24C02 and two pull-up electricity Resistance (R6 and R7) is connected on single chip communication pin line and the relationship of forming, and accesses single-chip microcontroller P3.0 and P3.1 pin and single-chip microcontroller Complete communication.
First communication unit and the second communication unit are DL-20 wireless serial transparent transmission module, pass through RXD and TXD interface Single-chip microcontroller is connected, realizes communication function.DL-20 wireless serial transparent transmission module is that a full duplex radio based on UART interface is saturating Bright transmission module can work in 2400MHz~2450MHz public frequency band.The module uses the CC2530 chip of TI, meets IEEE 802.15.4 agreement can make traditional serial equipment realize wireless transmission, replace complicated wiring by the module Work.
Power supply power supply unit in the present embodiment carries 18650 lithium batteries of 5V booster plate using single-unit.Nominal voltage 5V, Rated capacity 3200mAh.
As shown in figure 5 and figure 7, power off patch board be by common socket and DL-20 wireless serial transparent transmission module, main control unit 2, Multipath solid-state relay and the power module composition for being taken at alternating current, wherein solid-state relay on-off end controls each jack on insert row The on-off of firewire.
Multicircuit relay module triggers solid state relay module using 4 tunnel low levels, and 5V solid-state relay 240V 2A is defeated Resistive fuse 240V 2A, working power 5V, input control signal voltage: 0~2.5V state low level, relay are charged out Device ON, 3.3~5V state high level, relay OFF.No. 4 relays access single-chip microcontroller by IN0-IN3.
For example, Fig. 8 and master-slave socket pinboard shown in Fig. 9 and power off patch board can be with the power supply adaptor phases of electric vehicle Cooperation, master-slave socket pinboard often use charger master-slave socket using electric vehicle.
The master-slave socket pinboard includes plastic shell 804, the first terminals 803 being connected with power supply adaptor, In the first terminals 803 include input terminal pin 805 and 806.The second terminals 812 being connect with the battery of electric vehicle.Second Terminals 812 include output pin 807 and 808.Indicator light 802 and control switch corresponding to each group of detection terminals 801。
As shown in the partial cutaway view in the lower left corner Fig. 8, inside master-slave socket pinboard, the input of the first terminals 803 Pin 806 is connected with the input terminal 811 of the current acquisition unit 101 in current detection module, the electricity in current detection module The output terminal 809 of stream acquisition unit 101 is connected with 808 feet of the second terminals 812, input terminal pin 805 and the second wiring 807 feet at end 812 are connected.The value that single-chip microcontroller (the first main control unit) reads current acquisition unit 101 through A/D conversion module is gone forward side by side Row data processing.The master-slave socket pinboard plate face has concentrated 4 road charge tunnels, can be simultaneously to four charging equipments charging shapes State real-time detection.
Power supply adaptor one end (is connected on the socket of Fig. 9 power supply socket, by the other end by charging circuit after connecting The first terminals 803 of male and female adapter plate for circuit are connected to, the second terminals 812 are connected to the charging jacks of electric vehicle), it presses The charge switch (control switch) of corresponding channel on lower master-slave socket pinboard, single-chip microcontroller is detected by keying in main control unit 1 It corresponds in circuit processed by key pressing, the indicator light of corresponding channel lights.At the same time, as shown in figure 5, main control unit 1 passes through DL- 20 wireless serial transparent transmission modules are to 2 sendaisle retrieval command of main control unit (the second prompt information), i.e., successively closure power-off is inserted Relay in row searches the jack that charging equipment can be made to work.After each closing relay, through prolonging after a period of time When, if the current acquisition unit 101 in current detection module detects there is electric current in charging circuit, provide an analog voltage Value, is sent to single-chip microcontroller 1 after analog quantity is converted into digital quantity by A/D conversion module.At this point, also illustrating main control unit 2 at this time The relay channel of closure is that correctly, main control unit 1 is to send the signal (third that the channel works normally to main control unit 2 Prompt information), main control unit 2 will stop checking other channels, and the channel relay is kept to be closed.
Relay serial number corresponding with the channel is sent to main control unit 1 by main control unit 2 simultaneously, and main control unit 1 will be public Plug channels on female pinboard are mapped with the relay serial number (namely jack serial number) in power off patch board, and pass through Eeprom circuit is stored into EEPROM.When charging next time, after pressing the charge switch on master-slave socket pinboard, main control unit 1 can detect the relay control jack match pair with the channel first illustrates that power-off is slotting if charging equipment fails to work normally Jack on row changes, and then removes the unpaired message of last stored at this time, detects again, matches again, saves pairing again Channel information after success.
As shown in figure 9, power off patch board includes shell 901, (jack 902 and jack 911 are to adapt to jack 902 and 911 Different plugs, such as three hole plugs or two hole plugs, and design), indicator light 903 and main control unit 2.Below with jack 911 For, illustrate the structure inside power off patch board, inside power off patch board, the access of firewire 905 lead-out wire and multicircuit relay 906 Terminal 907 is connected, and the output terminal 908 of multicircuit relay 906 is connected with the pin 909 of two jacks 911, and two jacks 911 draw Foot 910 is connected with zero curve 904.The connection of charging equipment and alternating current is disconnected when main control unit 2 receives charging completion signal.
After charging complete, after main control unit 1 detects current threshold when charging current reaches fully charged, to main control unit 2 send charging completion signals, after main control unit 2 receives the signal, disconnect the relay of the access, also i.e. by charging equipment with City is electrically disconnected, and other channels save original state and are failure to actuate.
On the whole, referring to fig. 4, the process that the scheme of the present embodiment is implemented are as follows: power-up initializing, when pressing master-slave socket On pinboard when corresponding channel key, main control unit 1 is issued to main control unit 2 by DL-20 wireless serial transparent transmission module and is closed Relay order, charging equipment are connected, start to charge the battery, while the charging indicator light in the channel lights.Charging equipment is permanent When pressure charging, the charging current of battery is gradually reduced, and thinks charging complete after being reduced to certain value.Master-slave socket is embedded in turn The current value size in current detection module real-time detection access in fishplate bar, obtains digital quantity through AD conversion and is sent to master control Unit 1, the current value size that main control unit 1 will test are compared with threshold current, pass through nothing when reaching threshold current Line transparent transmission module sends the order for disconnecting relay to main control unit 2, and indicator light extinguishes, and charging terminates.The device can be effective Ground prevents battery from overshooting, and saves electric energy, extends the service life of charging equipment, improves electrical safety.
The present embodiment concentrates charging and the multichannel auto-power-off energy-saving protective device of proposition mainly for cell electric vehicle. In view of plugging the convenient and practical property of charging equipment when electric vehicle charging, use scheme shown in Fig. 4 by current detection module and Control module integrates on two devices.Master-slave socket pinboard (referring to Fig. 8) has concentrated the male and female of 4 groups of electric car chargers to insert Head, one charging sense channel of every group of correspondence.Every group of channel is equipped with charge switch and charging shape on master-slave socket pinboard State indicator light.The female on electric car charger is connected with the male connector in a channel on pinboard when connection, then by electric vehicle The male connector of charging extended line is connected with the female in the channel on pinboard, and the female and electric vehicle of electric vehicle charging extended line charge The male connector of mouth is connected.
Further, on the basis of the various embodiments described above, device provided in this embodiment is integrated on a device, The current detection module and the control module are arranged on charging panel;
At least one charging interface and at least one set of current detecting interface are provided on the charging panel;It is filled described in each Electrical interface connects the control module, and current detecting interface described in each group connects the current detection module.
It further, further include being correspondingly arranged with each current detecting interface on the basis of the various embodiments described above Indicator light and control switch;
One end of the power supply adaptor is connected to the charging interface on the charging panel, the other end is connected to described First detection interface of current detecting interface, will be described in the connecting line connection that drawn from the second detection interface of current detecting interface After default equipment, control switch corresponding with the current detecting interface, indicator light point corresponding with the current detecting interface are opened It is bright;
After control switch opening, the second main control unit controls the power supply adaptor of the default equipment by relay It is connected to alternating current, to the default equipment charge.
Specifically, Figure 10 show it is provided in this embodiment include 4 groups of charge protection structures auto-power-off energy-saving protection The electrical block diagram of device, corresponding to the schematic illustration of Fig. 2, referring to Figure 10, including current acquisition unit is (i.e. in Figure 10 Be connected to the functional module that current acquisition is carried out between charging equipment and battery), A/D converter (includes 4 groups to fill in Figure 10 Electric protection structure, each group of charge protection structure correspond to an A/D ALT-CH alternate channel), the main control unit (main control unit in Figure 10 The effect for realizing the first main control unit and the second main control unit can be realized by a single-chip microcontroller) and relay (4 groups of chargings Structure is protected, each group of charge protection structure corresponds to a relay).Current acquisition (passes through electric current connecting line and electric current Detection is acquired) it is connected to battery (battery to charge in default equipment) and charging equipment (i.e. default equipment Power supply adaptor) between.Mains power module be by alternating current be in power off patch board circuit power supply equipment.
Figure 11 shows the electricity of the auto-power-off energy-saving protective device provided in this embodiment for including 4 groups of charge protection structures Lu Tu, Figure 12 show the charging of the auto-power-off energy-saving protective device provided in this embodiment for including 4 groups of charge protection structures The entity structure diagram of panel.Circuit integration shown in Figure 11 is similar to shown in Fig. 6 and Fig. 7 in the charging panel shown in Figure 12 Circuit theory, pass through single-chip microcontroller STC89C52RC complete electric current detection and relay control.Due to current detecting and after The control of electric appliance is completed in single-chip microcontroller, does not need the communication for carrying out information, therefore do not need connecting communication unit.Figure 11 Shown in power circuit, crystal oscillating circuit, reset circuit, key control circuit, the function point of indicator light circuit, eeprom circuit Not identical as in above-mentioned Fig. 6, details are not described herein.
Charging panel shown in Figure 12 be mainly for mobile phone, laptop charging equipment propose multichannel from Dynamic circuit breaker electricity energy-saving protective device.Because of the master-slave socket small volume of these charging equipments, using concentration, miniaturization shown in Figure 10 Master-slave socket pinboard and power-off insert row are combined together, are combined into and automatically power off intelligent socket (charging panel) by scheme, and The actual signal wire of DL-20 wireless serial transparent transmission module in Fig. 6 and Fig. 7 is replaced, by two main control units with a master It controls unit to replace, (its circuit diagram is referring to Figure 11), Lai Shixian current detecting, the function of jack pairing, automatically power off.
It automatically powers off after master-slave socket pinboard and socket are combined together by intelligent socket and obtains charging panel, referring to figure 12, the charging energy-saving protective device for mobile phone charging, including (the i.e. offer city of charging interface 121 are provided on the charging panel The jack of electricity), the current detecting interface being made of the first detection interface 122 and the second detection interface 124.It charges for mobile phone When, it need to be realized by power supply adaptor and 2 charging cables.Specifically, when the mobile phone is charging, power supply adaptor to be inserted in charging On interface 121, the USB interface of a charging cable is connected into the power supply adaptor, the other end connects the first detection on the panel Interface 122, by USB interface connection the second detection interface 124 of another charging cable, the charging interface of other end connection mobile phone is It can charge to the mobile phone.
Similarly, it when for computer charging, also needs to realize by power supply adaptor and 2 charging cables.Specifically, for computer When charging, one end of power supply adaptor is inserted in the charging interface of the power supply adaptor corresponding to computer (i.e. on charging panel Three jacks) on, the other end connects the first detection interface 126 on the panel, by one end connection second of another charging cable Interface 127 is detected, the charging interface of other end connection computer can charge to the computer.To other equipment charges such as ipad When be referred to the above method, details are not described herein.Charging interface in the present embodiment and between every group of current detecting interface Circuit structure it is identical as the circuit structure between the third terminals and every group of detection terminals in above-described embodiment, this implementation The first terminals and the in the circuit structure and above-described embodiment between the first detection interface and the second detection interface in example Circuit structure between two terminals is identical.Socket and auto-power-off energy-saving protective device are combined together by the embodiment, real The miniaturization of equipment, portability are showed.On the other hand, this method, which only needs separately to provide a charging cable, can be completed charging process, It does not need to carry out redesign, simple possible to original charging cable.
Auto-power-off energy-saving protective device provided in this embodiment includes current detecting unit and power on/off execution unit.Electricity The electric current that detection unit detects power supply adaptor output line is flowed, is according to above-mentioned electric current and threshold current multilevel iudge battery capacity It is no to have been filled with.Multichannel auto-power-off energy-saving protective device includes master-slave socket pinboard and power supply socket, above-mentioned master-slave socket Pinboard is connected with power supply socket by wireless communication module, and multiple charge tunnels are concentrated in together, and realizes that multichannel is concentrated Management;Master-slave socket pinboard includes the battery charge detection jack and sequentially connected current acquisition concentrated on panel Unit, A/D conversion module, main control unit 1, power supply socket communication module 1 and DC power supply power supply unit.Battery charge inspection Surveying jack, current detection module and A/D conversion module is multichannel.
Power supply socket include be included in socket with master-slave socket pinboard communication module 2, main control unit 2, multichannel after Electric appliance, the power module for being taken at alternating current.Power adaptation is controlled according to the curent change in power supply adaptor and battery charging circuit The on-off of device and power supply socket.Power supply socket, for charging equipment is electrically disconnected with city.Compared with prior art, the present invention can It is used cooperatively with all types of power supply adaptor on the market, the state of multiple charging equipments can be detected simultaneously, in rechargeable battery Automatically the alternating current of its charging equipment is disconnected after fully charged, electric energy loss when elimination charging equipment is standby, anti-overcharge, safety saves Can, extend the service life of charging equipment and rechargeable battery;Meanwhile the use of wireless module reduces the numerous and disorderly electricity of equipment Line connection, increases portability.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than it is right It is limited;Although the embodiment of the present invention is described in detail referring to foregoing embodiments, the ordinary skill of this field Personnel are it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part Or all technical features are equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution The range of each embodiment technical solution of the embodiment of the present invention.

Claims (6)

1. a kind of auto-power-off energy-saving protective device, which is characterized in that including at least one set of charge protection structure, filled described in every group Electric protection structure includes current detection module and control module, and the current detection module connects the control module;
When power supply adaptor by presetting equipment is the default equipment charge, the current detection module is acquired from the electricity The electric signal of source adapter output;
The current detection module judges whether the charging process to the default equipment is completed according to the electric signal;
If the current detection module judges that the charging process of the default equipment is completed, the control module cuts off the electricity Connection between source adapter and mains terminal;
The current detection module includes current acquisition unit, A/D converter and the first main control unit;The control module includes Second main control unit and relay;
During to the default equipment charge, one end of the current acquisition unit is connected to the power supply adaptor and institute Between the battery for stating default equipment, the other end connects the A/D converter;The A/D converter connects the first master control list Member;
The current acquisition unit for will the electric signal transmission that acquire in real time to the A/D converter, the A/D conversion After the electric signal is converted to the current value of digital signal by device, it is transferred to first main control unit;
The current value and current threshold are compared by first main control unit, if the current value is less than the current threshold Value, then the charging process of the default equipment is completed, and second main control unit controls the relay, to disconnect State the connection between power supply adaptor and the mains terminal;
The current detection module further includes the first communication unit, and the control module further includes the second communication unit;
First main control unit connects first communication unit, and second communication unit connects the second master control list Member;
First main control unit judges that the charging process of the default equipment is completed, then passes through first communication unit to institute It states the second communication unit and sends the first prompt information that the charging process of the default equipment is completed;
After second communication unit receives first prompt information, first prompt information is sent to described second Main control unit, second main control unit control the relay, to disconnect the power supply adaptor and the alternating current Connection between end;
The current detection module is arranged on pin and box sub pinboard, and the control module is arranged on charging connectors;
At least one set of detection terminals are provided on the pin and box sub pinboard, each group of detection terminals include and the electricity First terminals of source adapter connection and the second terminals being connect with the default equipment;
The current acquisition unit detects the telecommunications between each group of first terminals and second terminals Number;
At least one third terminals connecting with the power supply adaptor, shown third wiring are provided on the charging connectors The other end at end, which is connected, connects the mains terminal by relay;
Second main control unit controls the alternating current exported from the third terminals by the relay.
2. the apparatus according to claim 1, which is characterized in that further include Interface Matching module and with each group of detection wiring Hold the control switch of connection;
First terminals of certain third terminals and certain group detection terminals are connected in the power supply adaptor, it is described to set Standby the second terminals for connecting group detection terminals, it is described to connect after opening the control switch connecting with group detection terminals Mouth matching module is believed by second communication unit to the second prompt that first communication unit transmission starts to match port Breath;
After second communication unit receives second prompt information, second main control unit is successively closed control module In relay, the third prompt information until receiving the circuit communication that second communication unit is sent.
3. the apparatus of claim 2, which is characterized in that second communication unit receives the second prompt letter After breath, second main control unit is successively closed the relay in control module, until receiving the second communication unit hair The third prompt information of the circuit communication sent, comprising:
The Interface Matching module sends pre-stored and is somebody's turn to do by second communication unit to first communication unit The identification information of the corresponding third terminals of group detection terminals, second communication unit receive second prompt information After the identification information, second main control unit is closed the relay of the corresponding third terminals of the identification information, sentences Whether deenergizing is connected to, if not being connected to, is successively closed other in addition to the corresponding third terminals of the identification information The relay of three terminals, until receiving the third prompt information.
4. the apparatus of claim 2, which is characterized in that further include the instruction being connect with each group of detection terminals Lamp;
After detecting that control switch is opened, indicator light corresponding with the detection terminals of control switch connection is lighted.
5. the apparatus according to claim 1, which is characterized in that the current detection module and the control module are respectively provided with On charging panel;
At least one charging interface and at least one current detecting interface are provided on the charging panel;The charging interface connects The control module is connect, the current detecting interface connects the current detection module.
6. device according to claim 5, which is characterized in that further include the finger being correspondingly arranged with each current detecting interface Show lamp and control switch;
One end of the power supply adaptor is connected to the charging interface on the charging panel, the other end is connected to the electric current The the first detection interface for detecting interface, the connecting line connection drawn from the second detection interface of current detecting interface is described default After equipment, control switch corresponding with the current detecting interface is opened, indicator light corresponding with the current detecting interface is lighted;
After control switch opening, the second main control unit controls the default equipment by relay and is connected to alternating current, to described Default equipment charge.
CN201810145898.XA 2018-02-12 2018-02-12 A kind of auto-power-off energy-saving protective device Active CN108173327B (en)

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