CN106849246A - Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit - Google Patents
Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit Download PDFInfo
- Publication number
- CN106849246A CN106849246A CN201710116821.5A CN201710116821A CN106849246A CN 106849246 A CN106849246 A CN 106849246A CN 201710116821 A CN201710116821 A CN 201710116821A CN 106849246 A CN106849246 A CN 106849246A
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- China
- Prior art keywords
- short
- circuit
- charging inlet
- control unit
- detecting device
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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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000005611 electricity Effects 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Classifications
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This application discloses a kind of charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit, the charging inlet short-circuit detecting device includes:Control unit, is configured to generation and output short-circuit detection signal, and receive the short-circuit alarming signal for returning;Detection unit, is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect the electric current that power supply is conveyed to charging inlet, if the size of electric current is more than preset value, the then connection of deenergization, and output short-circuit alarm signal, to remind current state to be not suitable for charging.According to the technical scheme that the application is provided, control unit detects the electric current that power supply is conveyed to charging inlet by detection unit, can detect charging inlet with the presence or absence of short circuit phenomenon and effectively prevent the short-circuit damage to equipment for causing.
Description
Technical field
The disclosure relates generally to charging technique field, more particularly to charging inlet short-circuit detecting device, mobile terminal and short
Road detection method.
Background technology
Charging inlet on the market increasingly tends to minimize such as Micro USB charging ports at present, because these fill
The spacing of electrical interface pin is less than normal, and is open socket.When inserting partially or thering is foreign object to enter socket, socket is easily caused short
Road, causes the mobile terminal case comprising the interface to burn, melting accident.Or, cause charger or charging socket to damage.And
The design of current most of charging inlets is unable to active detecting and prevents the above-mentioned short circuit phenomenon of charging inlet.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of short-circuit detecting device of charging inlet, it is
Realize above-mentioned purpose, there is provided a kind of charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit.
A kind of first aspect, there is provided charging inlet short-circuit detecting device, including:
Control unit, is configured to generation and output short-circuit detection signal, and receive the short-circuit alarming signal for returning;
Detection unit, is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect power supply
To the electric current that charging inlet is conveyed, if the size of electric current is more than preset value, the connection of deenergization, and output short-circuit alarm signal
Number, to remind current state to be not suitable for charging.
A kind of second aspect, there is provided mobile terminal, mobile terminal includes above-mentioned charging inlet short-circuit detecting device.
A kind of third aspect, there is provided charging inlet method for detecting short circuit suitable for above-mentioned mobile terminal, including:
Control unit generates short-circuit detection signal;
Control unit controls charging inlet short-circuit detecting device detection power supply defeated to charging inlet according to short-circuit detection signal
The electric current for sending, and the short-circuit alarming signal for returning is received, to remind current state to be not suitable for charging.
According to the technical scheme that the embodiment of the present application is provided, control unit detects power supply to charging inlet by detection unit
The electric current of conveying, can detect charging inlet with the presence or absence of short circuit phenomenon and effectively prevent the short-circuit damage to equipment for causing.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, the application other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the exemplary circuit diagram of the charging inlet short-circuit detecting device of the embodiment of the present application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of charging inlet short-circuit detecting device of disclosure, the device includes:
Control unit, is configured to generation and output short-circuit detection signal, and receive the short-circuit alarming signal for returning;
Detection unit, is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect power supply
To the electric current that charging inlet is conveyed, if the size of electric current is more than preset value, the connection of deenergization, and output short-circuit alarm signal
Number, to remind current state to be not suitable for charging.
Fig. 1 is refer to, the exemplary circuit diagram of the charging inlet short-circuit detecting device according to the embodiment of the present application is shown.
The detection unit as shown in Figure 1 includes:
Current-limiting protection circuit, the input of the current-limiting protection circuit is connected with power supply, output end and the charging inlet
Power pins are connected, and I/O mouthfuls with warning end respectively with described control unit of Enable Pin is connected.Specifically, current-limiting protection circuit
Input VIN connection positive source VCC, output end VOUT connections charging inlet J9 positive sources pin 1, ground terminal GND connections
The ground pin 5 of charging inlet J9, Enable Pin EN and warning end FAULT respectively with the I/O mouthfuls of GPIO_1 and GPIO_ of control unit U2
2 connections.
In the present embodiment, current-limiting protection circuit include SGM2588A chip U1, or can using realize current-limiting protection its
His detection chip.Control unit can be single-chip microcomputer or be the equipment comprising the short-circuit detecting device microprocessor.For example, short
When road detection means is applied to mobile phone, the control unit can be the microprocessor of mobile phone.
GPIO_1 resets under default setting, " FAULT " pin of U1 defaults to height.When needing detection, control unit U2's
GPIO_1 pin sets, what the power supply VCC that now current-limiting protection circuit detection flows through input VIN was conveyed to charging inlet J9
Electric current, if the electric current is more than preset value, cuts off the connection of VCC and VIN, while dragging down FAULT pins, alarm signal is exported
To GPIO_2.Control unit U2 detects GPIO_2, then judge occur between the power pins 1 of charging inlet J9 and ground pin 5
Short circuit phenomenon.
In some preferred embodiments, charging inlet connects for Micro USB interfaces, Lighting interfaces or center of circle power supply
Mouthful.
Preferably, the short-circuit detecting device can also include:Display unit, is configured to show short-circuit alarming signal.It is aobvious
Show that unit can be indicator lamp, LCDs or touch screen.Specifically, after control unit receives alarm signal, control display
Control unit shows prompting messages such as " being currently not suitable for charging, please check charging inlet ".
In some preferred embodiments, control unit includes timing unit, and described control unit is according to the timing unit
The timing triggering generation short-circuit detection signal.The timing unit can be that software timing unit or hardware timing are single
Unit, and its timing is set as needed, with single or periodic manner triggering generation detection control signal.The short circuit is examined
Survey device and can be applied to the device without rechargeable battery such as charging wire, charger, be also applied for the equipment comprising rechargeable battery.
In some preferred embodiments, control unit includes electric power detection unit, and described control unit is examined from the electricity
When the electricity for surveying the rechargeable battery that unit is received is less than preset value, the short-circuit detection signal is generated.Comprising rechargeable battery
Most equipment reminds user to charge when the electricity of rechargeable battery is less than certain preset value, now, can simultaneously detect charging inlet
Whether short circuit, with remind user current state if appropriate for charging, if there is short circuit phenomenon, in time remind user eliminate
Recharged after obstacle.
Above-mentioned charging inlet short-circuit detecting device can be applied to various mobile terminals, such as mobile phone, IPAD computers etc..So as to
Detection charging inlet whether there is short circuit phenomenon at any time.
Whether although big multi-terminal equipment is provided with short-circuit protection circuit at present, and be unable to active detecting and be short-circuited, and
When remove barriers, be prevented effectively from the damage that is caused to charging inlet, charger or charging socket of short circuit.
The application also provides a kind of charging inlet method for detecting short circuit, including:
Control unit generates short-circuit detection signal;
Control unit controls charging inlet short-circuit detecting device detection power supply to filling according to the short-circuit detection signal
The electric current of electrical interface conveying, and the short-circuit alarming signal for returning is received, to remind current state to be not suitable for charging.
In some preferred embodiments, described control unit includes timing unit, and control unit is according to the timing unit
The timing triggering generation short-circuit detection signal.The timing unit can be that software timing unit or hardware timing are single
Unit, and its timing is set as needed, with single or periodic manner triggering generation detection control signal.
Preferably, control unit includes electric power detection unit, and described control unit is received from the electric power detection unit
The electricity of rechargeable battery when being less than preset value, generate the short-circuit detection signal.When the electricity of rechargeable battery is pre- less than certain
If, it is necessary to be charged to rechargeable battery during value.Now, if charging inlet has short circuit phenomenon, without eliminating short circuit, directly charging will
Cause the damage of equipment.Therefore, now first carry out short-circuit detecting and to remove obstacles charged again, the destruction to equipment will be avoided.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that involved invention scope in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where the inventive concept is not departed from, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (11)
1. a kind of charging inlet short-circuit detecting device, it is characterised in that including:
Control unit, is configured to generation and output short-circuit detection signal, and receive the short-circuit alarming signal for returning;
Detection unit, is arranged between charging inlet and power supply, is configured to receive the short-circuit detection signal detect power supply
To the electric current that charging inlet is conveyed, if the size of the electric current is more than preset value, the connection of the power supply is disconnected, and export short
Road alarm signal, to remind current state to be not suitable for charging.
2. short-circuit detecting device according to claim 1, it is characterised in that the detection unit includes:
Current-limiting protection circuit, the input of the current-limiting protection circuit is connected with power supply, output end and the charging inlet power supply
Pin is connected, and I/O mouthfuls with warning end respectively with described control unit of Enable Pin is connected.
3. short-circuit detecting device according to claim 1, it is characterised in that the charging inlet be Micro USB interfaces,
Lighting interfaces or center of circle power interface.
4. according to any described short-circuit detecting devices of claim 1-3, it is characterised in that also include:
Display unit, is configured to show the short-circuit alarming signal.
5. short-circuit detecting device according to claim 4, it is characterised in that the display unit is indicator lamp, liquid crystal
Display screen or touch screen.
6. short-circuit detecting device according to claim 1, it is characterised in that described control unit includes timing unit, institute
Control unit is stated according to the timing of the timing unit triggering generation short-circuit detection signal.
7. short-circuit detecting device according to claim 1, it is characterised in that control unit includes electric power detection unit, institute
When the electricity for stating the rechargeable battery that control unit is received from the electric power detection unit is less than preset value, the short circuit inspection is generated
Survey signal.
8. a kind of mobile terminal, it is characterised in that the mobile terminal includes the charging described in any one of claim 1~7
Mouth short-circuit detecting device.
9. a kind of charging inlet method for detecting short circuit, it is characterised in that methods described includes:
Control unit generates short-circuit detection signal;
Control unit controls the charging inlet short-circuit detecting device to detect power supply to charging according to the short-circuit detection signal
The electric current of mouth conveying, and the short-circuit alarming signal for returning is received, to remind current state to be not suitable for charging.
10. charging inlet method for detecting short circuit according to claim 9, it is characterised in that described control unit includes fixed
Shi Danyuan, described control unit is according to the timing of the timing unit triggering generation short-circuit detection signal.
11. charging inlet method for detecting short circuit according to claim 9, it is characterised in that control unit is examined including electricity
Unit is surveyed, when the electricity of the rechargeable battery that described control unit is received from the electric power detection unit is less than preset value, generation
The short-circuit detection signal.
Priority Applications (1)
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CN201710116821.5A CN106849246A (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit |
Applications Claiming Priority (1)
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CN201710116821.5A CN106849246A (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit |
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Publication Number | Publication Date |
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CN106849246A true CN106849246A (en) | 2017-06-13 |
Family
ID=59138336
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CN201710116821.5A Pending CN106849246A (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107887947A (en) * | 2017-11-24 | 2018-04-06 | 维沃移动通信有限公司 | A kind of guard method of charging port and mobile terminal |
CN110086219A (en) * | 2019-04-12 | 2019-08-02 | 出门问问信息科技有限公司 | A kind of charging base |
CN111146828A (en) * | 2018-11-05 | 2020-05-12 | 重庆峘能电动车科技有限公司 | Battery protection system and power supply unit |
CN114325473A (en) * | 2021-12-24 | 2022-04-12 | 广州星际悦动股份有限公司 | Short circuit detection circuit, method, device, electronic device and storage medium |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107887947A (en) * | 2017-11-24 | 2018-04-06 | 维沃移动通信有限公司 | A kind of guard method of charging port and mobile terminal |
CN107887947B (en) * | 2017-11-24 | 2019-12-06 | 维沃移动通信有限公司 | Protection method for charging port and mobile terminal |
CN111146828A (en) * | 2018-11-05 | 2020-05-12 | 重庆峘能电动车科技有限公司 | Battery protection system and power supply unit |
CN110086219A (en) * | 2019-04-12 | 2019-08-02 | 出门问问信息科技有限公司 | A kind of charging base |
CN110086219B (en) * | 2019-04-12 | 2021-08-06 | 出门问问信息科技有限公司 | Charging base |
CN114325473A (en) * | 2021-12-24 | 2022-04-12 | 广州星际悦动股份有限公司 | Short circuit detection circuit, method, device, electronic device and storage medium |
CN114325473B (en) * | 2021-12-24 | 2024-03-08 | 广州星际悦动股份有限公司 | Short circuit detection circuit, short circuit detection method, short circuit detection device, electronic equipment and storage medium |
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