CN205004813U - Intelligent security type charger - Google Patents
Intelligent security type charger Download PDFInfo
- Publication number
- CN205004813U CN205004813U CN201520622041.4U CN201520622041U CN205004813U CN 205004813 U CN205004813 U CN 205004813U CN 201520622041 U CN201520622041 U CN 201520622041U CN 205004813 U CN205004813 U CN 205004813U
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- CN
- China
- Prior art keywords
- trigger switch
- circuit
- interface
- charger
- charging inlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an intelligent security type charger, include: municipality's electrical interface, with commercial power interface connection's ACDC circuit, with ACDC circuit connection's the interface group of charging, be used for controlling the control circuit of ACDC circuit break -make, the interface inter block that charges is equipped with at least one interface that charges. Control circuit includes: the trigger switch subassembly of connection between ACDC circuit and municipality's electrical interface, be connected at ACDC circuit and the MCU the control unit that charges current detection resistance between the interface group, be connected with current detection resistance and trigger switch subassembly respectively. The trigger switch subassembly includes parallelly connected manual trigger switch and relay, and manual trigger switch is open state, and the break -make of relay is controlled by MCU the control unit. The utility model discloses it can automatic cutout mains power supply after finishing to charge at equipment, thoroughly avoids inserting for a long time all kinds of potential safety hazards that electric conductance was sent to reach and stop unloaded power consumption.
Description
Technical field
The utility model relates to charger technologies field, particularly relates to a kind of Intelligent safety charger.
Background technology
Along with the various digital product by lithium battery power supply such as mobile phone, panel computer gets more and more, a lot of family has this kind of digital product of multiple stage, and these products attach the charger of a USB interface substantially all at random, the charger every of these various power, form has several even tens more than, use frequent, also occur many problems.
In recent years, the accidents such as the personal safety accident caused due to various battery charger failure or fire are seen in media report often, cause the loss of many people's lives and properties, with regard to its reason, except the faults itself of some chargers inferior, overwhelming majority failure cause is from the accidental failure of charger, do not pull up because most people for a long time charger are inserted commercial power socket or forget power-off, charger is caused to be in mains high input voltage state for a long time, and due to utility grid fluctuation itself, the destabilizing factors such as surge, add the accidental failures such as charger internal electronic component is aging, those are caused to forget power-off, the charger of long-term energising burns out suddenly and causes security incident, even if the high-quality charger of some famous brands also cannot be avoided, the i Phone charger of such as the author's family just causes burning because long-term plug-in is forgotten to extract and causes air switch tripping operation, extremely make us terrible.
In addition, some people but forgets be full of rear power-off to electronic product charging, cause over-charging of battery and cause cell damage, blast, then device damage, charging such as to burn at the subsequent faults, the charging of the several different product of somebody's family inserts civil power for a long time, never extract, more bring the potential safety hazard doubled.In addition from environmental angle, the unloaded power consumption also unfavorable environmental protection and energy saving of various charger itself, this present situation of huge numbers of families not only causes potential safety hazard also to cause a large amount of electric power energy to consume in vain.
In view of above present situation, be badly in need of from safety, environmental angle, research and develop and be not a kind ofly afraid of long-term plug-in, be not afraid of the Intelligent safety charger forgetting power-off and energy-saving safe.
Utility model content
For solving the defect existed in prior art, the utility model proposes a kind of Intelligent safety charger, this charger automatically can cut off mains-supplied after equipment charge, thoroughly avoids all kinds of potential safety hazards that long-term plug-in causes, and reaches and stop unloaded power consumption.
The technical solution adopted in the utility model is, design a kind of Intelligent safety charger, comprise: commercial power interface, the AC/DC circuit be connected with commercial power interface, the charging inlet group be connected with AC/DC circuit, control circuit for control AC/DC connecting and disconnecting of the circuit, be provided with at least one charging inlet in charging inlet group.
Control circuit comprises: the MCU control unit being connected to AC/DC circuit and the trigger switch assembly between commercial power interface, being connected to current sense resistor between AC/DC circuit with charging inlet group, being connected with current sense resistor and trigger switch assembly respectively.Trigger switch assembly comprises manual trigger switch in parallel and relay, and described manual trigger switch is normally open, and the break-make of described relay is controlled by MCU control unit.
Wherein, manual trigger switch is non-self-lock-ing switch.
Preferably, MCU control unit also connects a current displaing unit, and current displaing unit is LED or display screen.
In one embodiment, be provided with at least two charging inlets in parallel in charging inlet group, charging inlet is USB interface.The chip model that MCU control unit adopts is DG1506S.
Compared with prior art, first the utility model starts charging by the manual trigger switch be connected on line, secondly realizes automatic connection by the relay being connected on line and powers and automatically jump electricity of cutting off market.It has the following advantages: even if 1, charger inserts civil power all the year round, is in off-position because charger is actual, conventional charger therefore can not be brought to forget power-off and the various security incidents that cause, as burnt, spontaneous combustion, causes tripping operation etc.; 2, after equipment charge completes, charger can pass through amperometric determination and complete charge, effectively prevent from being caused device damage by charging device as mobile phone overcharges and avoids conventional charger to overcharge equipment simultaneously, such as give mobile phone charging all night, all day charges the potential faults brought; 3, charger is complete power-off when standby, eliminates the no-load loss that conventional charger plug-in brings, has the effect of environmental protection and energy saving.4, charger can arrange dissimilar charging inlet, a charger can adapt to the electronic equipment charge requirement of nearly all model.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail, wherein:
Fig. 1 is circuit connection diagram of the present utility model.
Embodiment
According to the various charge rule having lithium battery power supply equipment, being full of gradually namely along with battery, charging current is a process of successively decreasing, and when charging current is little such as little of 0.1A to a certain extent, nearly all mobile phone and dull and stereotyped apparatus such as computer are just full of completely.The utility model, by the change of continuous monitor current, accurately can judge that whether equipment charge terminates, and sends afterwards and is full of signal, automatically cuts off the relay being built in mains electricity input end, makes the holding state of the complete power-off of charger rebound.
As shown in Figure 1, the Intelligent safety charger that the utility model proposes, comprise: commercial power interface, the AC/DC circuit be connected with commercial power interface, the charging inlet group be connected with AC/DC circuit, control circuit for control AC/DC connecting and disconnecting of the circuit, be provided with at least one charging inlet in charging inlet group.
Control circuit comprises: the MCU control unit being connected to AC/DC circuit and the trigger switch assembly between commercial power interface, being connected to current sense resistor between AC/DC circuit with charging inlet group, being connected with current sense resistor and trigger switch assembly respectively.MCU control unit is main control singlechip microcomputer chip, is responsible for charging current and detects, shows and control relay effect, and have unloaded and the dual self-protection function of overload detection.Current sense resistor is charge current sample resistance, design value very little (being less than 0.1 ohm), makes itself to only have minimum loss, when trigger switch assembly is connected, charging inlet is energized, and current sense resistor is sampled to the electric current flowing through charging inlet and is passed to MCU control unit.
Trigger switch assembly comprises manual trigger switch in parallel and relay, and manual trigger switch is normally open, and the break-make of relay is controlled according to size of current by MCU control unit.Wherein, manual trigger switch is non-self-lock-ing elastic switch, clicks rear its of triggering connection and automatically rebounds, return initial off-state.The control procedure of trigger switch assembly is as follows: after charging inlet connects upper equipment, click manual trigger switch, now AC/DC circuit and commercial power interface are connected, charging inlet place is energized, after MCU control unit is determined by current detecting, send signal at once relay adhesive to be entered charge normal flow process, along with charging terminates, MCU control unit is given an order again, make relay contact tripping, cause charger self power-off to make charger enter complete power-off, without electric holding state because relay disconnects.
Preferably, MCU control unit also connects a current displaing unit, and current displaing unit is LED or display screen, and person easy to use clearly can know the charging current of charging inlet.
Can will be provided with at least two charging inlets in parallel in charging inlet group during use, in the present embodiment, charging inlet is USB interface, and the chip model that MCU control unit adopts is DG1506S.Certainly also can need according to concrete the type designing multiple charging inlet and charging inlet.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. an Intelligent safety charger, it is characterized in that comprising: commercial power interface, the AC/DC circuit be connected with commercial power interface, the charging inlet group be connected with AC/DC circuit, control circuit for control AC/DC connecting and disconnecting of the circuit, be provided with at least one charging inlet in described charging inlet group;
Described control circuit comprises: the MCU control unit being connected to AC/DC circuit and the trigger switch assembly between commercial power interface, being connected to current sense resistor between AC/DC circuit with charging inlet group, being connected with current sense resistor and trigger switch assembly respectively;
Described trigger switch assembly comprises manual trigger switch in parallel and relay, and described manual trigger switch is normally open, and the break-make of described relay is controlled by MCU control unit.
2. Intelligent safety charger as claimed in claim 1, it is characterized in that, described manual trigger switch is non-self-lock-ing switch.
3. Intelligent safety charger as claimed in claim 1, it is characterized in that, described MCU control unit also connects a current displaing unit.
4. Intelligent safety charger as claimed in claim 3, it is characterized in that, described current displaing unit is LED or display screen.
5. Intelligent safety charger as claimed in claim 1, is characterized in that, the chip model that described MCU control unit adopts is DG1506S.
6. Intelligent safety charger as claimed in claim 1, is characterized in that, be provided with at least two charging inlets in parallel in described charging inlet group, described charging inlet is USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622041.4U CN205004813U (en) | 2015-08-18 | 2015-08-18 | Intelligent security type charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622041.4U CN205004813U (en) | 2015-08-18 | 2015-08-18 | Intelligent security type charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004813U true CN205004813U (en) | 2016-01-27 |
Family
ID=55161684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622041.4U Expired - Fee Related CN205004813U (en) | 2015-08-18 | 2015-08-18 | Intelligent security type charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601321A (en) * | 2019-09-21 | 2019-12-20 | 东莞市融贯电子科技有限公司 | Charger capable of automatically powering off when mobile phone or tablet computer is fully charged |
-
2015
- 2015-08-18 CN CN201520622041.4U patent/CN205004813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601321A (en) * | 2019-09-21 | 2019-12-20 | 东莞市融贯电子科技有限公司 | Charger capable of automatically powering off when mobile phone or tablet computer is fully charged |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |