CN206697953U - Charging inlet short-circuit detecting device and mobile terminal - Google Patents
Charging inlet short-circuit detecting device and mobile terminal Download PDFInfo
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- CN206697953U CN206697953U CN201720191421.6U CN201720191421U CN206697953U CN 206697953 U CN206697953 U CN 206697953U CN 201720191421 U CN201720191421 U CN 201720191421U CN 206697953 U CN206697953 U CN 206697953U
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- charging inlet
- detecting device
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Abstract
This application discloses a kind of charging inlet short-circuit detecting device and mobile terminal, the charging inlet short-circuit detecting device includes current-limiting protection circuit and control unit；The input of the current-limiting protection circuit is connected with power supply, and output end is connected with charging inlet pin, and Enable Pin and warning end are connected with the I/O mouths of described control unit respectively.The technical scheme provided according to the embodiment of the present application, the electric current that control unit is conveyed by detection unit detection power supply to charging inlet, charging inlet can be detected with the presence or absence of short circuit phenomenon and effectively prevent the damage caused by short circuit to equipment.
Description
Technical field
The disclosure relates generally to charging technique field, more particularly to charging inlet short-circuit detecting device and mobile terminal.
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 having foreign object to enter socket, it is short to easily cause socket
Road, the mobile terminal case comprising the interface is caused to burn, melting accident.Or charger or charging socket is caused 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.
Utility model content
In view of drawbacks described above of the prior art or deficiency, it is expected to provide a kind of short-circuit detecting device of charging inlet, are
Realize above-mentioned purpose, there is provided one kind fills charging inlet short-circuit detecting device and mobile terminal.
First aspect, there is provided a kind of charging inlet short-circuit detecting device, including：
Control unit, generation and output short-circuit detection signal are configured to, and receive the short-circuit alarming signal returned；
Detection unit, it is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect power supply
The electric current conveyed to charging inlet, if the size of electric current is more than preset value, the connection of deenergization, and output short-circuit alarm signal
Number；
Detection unit includes current-limiting protection circuit, and the input of current-limiting protection circuit is connected with power supply, output end and charging
Interface pin is connected, and Enable Pin and warning end are connected with the I/O mouths of control unit respectively.
Second aspect, there is provided a kind of mobile terminal, mobile terminal include above-mentioned charging inlet short-circuit detecting device.
The technical scheme provided according to the embodiment of the present application, control unit detect power supply to charging inlet by detection unit
The electric current of conveying, charging inlet can be detected with the presence or absence of short circuit phenomenon and effectively prevent the damage caused by short circuit to equipment.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is 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 according to the embodiment of the present application.
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 describe, 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 include：
Control unit, generation and output short-circuit detection signal are configured to, and receive the short-circuit alarming signal returned；
Detection unit, it is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect power supply
The electric current conveyed to charging inlet, if the size of electric current is more than preset value, the connection of deenergization, and output short-circuit alarm signal
Number.
Fig. 1 is refer to, shows the exemplary circuit diagram of the charging inlet short-circuit detecting device according to the embodiment of the present application.
The detection unit as shown in Figure 1 includes：
Current-limiting protection circuit, the input of the current-limiting protection circuit are connected with power supply, output end and the charging inlet
Power pins are connected, and Enable Pin is connected with the I/O mouths of described control unit respectively with warning end.Specifically, current-limiting protection circuit
Input VIN connections positive source VCC, output end VOUT connection charging inlet J9 positive sources pin 1, ground terminal GND connections
Charging inlet J9 ground pin 5, Enable Pin EN and warning end FAULT I/O the mouths GPIO_1 and GPIO_ with control unit U2 respectively
2 connections.
In the present embodiment, current-limiting protection circuit includes SGM2588A chip U1, or can use its that realize current-limiting protection
His detection chip.Control unit can be single-chip microcomputer or the microprocessor for the equipment comprising the short-circuit detecting device.It is 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, U1 " FAULT " pin default 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 conveyed to charging inlet J9
Electric current, if the electric current is more than preset value, VCC and VIN connection is cut off, while drag down FAULT pins, alarm signal is exported
To GPIO_2.Control unit U2 detects GPIO_2, then judges to occur between charging inlet J9 power pins 1 and ground pin 5
Short circuit phenomenon.
In some preferred embodiments, charging inlet is that Micro USB interfaces, Lighting interfaces or center of circle power supply connect
Mouthful.
Preferably, the short-circuit detecting device can also include：Display unit, it is configured to show short-circuit alarming signal.It is aobvious
It can be indicator lamp, LCDs or touch screen to show unit.Specifically, after control unit receives alarm signal, control display
Control unit shows prompting messages such as " current to be not suitable for charging, please to check charging inlet ".
In some preferred embodiments, control unit includes timing unit, and described control unit is according to the timing unit
Timing triggering generate the short-circuit detection signal.The timing unit can be that software timing unit or hardware timing are single
Member, and its timing is set as needed, with single or periodic manner triggering generation detection control signal.The short circuit is examined
Device such as charging wire, charger that device can be applied to no rechargeable battery are surveyed, is also applied for the equipment for including 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 the rechargeable battery that survey unit receives is less than preset value, the short-circuit detection signal is generated.Include rechargeable battery
Most equipment reminds user's charging, now, can detect charging inlet simultaneously when the electricity of rechargeable battery is less than certain preset value
It is whether short-circuit, to remind user that current state is if appropriate for charging, if short circuit phenomenon be present, remind user to eliminate in time
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.
At present although big multi-terminal equipment is provided with short-circuit protection circuit, and is unable to active detecting and short circuit whether occurs, and
When remove barriers, effectively avoid short circuit give charging inlet, charger or charging socket caused by damage.
The application also provides charging inlet method for detecting short circuit, including：
Control unit generates short-circuit detection signal；
Control unit controls the charging inlet short-circuit detecting device to detect power supply to filling according to the short-circuit detection signal
The electric current of electrical interface conveying, and the short-circuit alarming signal returned 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
Timing triggering generate the short-circuit detection signal.The timing unit can be that software timing unit or hardware timing are single
Member, 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 receives 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 less than necessarily in advance
If, it is necessary to be charged to rechargeable battery during value.Now, if charging inlet has short circuit phenomenon will without eliminating short circuit directly charging
Cause the damage of equipment.Therefore, now first carry out short-circuit detecting to remove obstacles and charged again, the destruction to equipment will be avoided.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The 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 (6)
- A kind of 1. charging inlet short-circuit detecting device, it is characterised in that including：Control unit, generation and output short-circuit detection signal are configured to, and receive the short-circuit alarming signal returned；Detection unit, it is arranged between charging inlet and power supply, is configured to receive short-circuit detection signal to detect power supply to filling The electric current of electrical interface conveying, if the size of electric current is more than preset value, the connection of deenergization, and output short-circuit alarm signal；The detection unit includes current-limiting protection circuit, and the input of the current-limiting protection circuit is connected with power supply, output end with Charging inlet pin is connected, and Enable Pin and warning end are connected with the I/O mouths of described control unit respectively.
- 2. short-circuit detecting device according to claim 1, it is characterised in that the ground terminal connection institute of the current-limiting protection circuit State the ground pin of charging inlet.
- 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, 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. a kind of mobile terminal, it is characterised in that the mobile terminal includes the charging described in any one of Claims 1 to 5 Mouth short-circuit detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191421.6U CN206697953U (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191421.6U CN206697953U (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206697953U true CN206697953U (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720191421.6U Active CN206697953U (en) | 2017-03-01 | 2017-03-01 | Charging inlet short-circuit detecting device and mobile terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849246A (en) * | 2017-03-01 | 2017-06-13 | 顺丰科技有限公司 | Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit |
| CN109116179A (en) * | 2018-09-17 | 2019-01-01 | 歌尔股份有限公司 | Handle function tests circuit and handle function test device |
-
2017
- 2017-03-01 CN CN201720191421.6U patent/CN206697953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849246A (en) * | 2017-03-01 | 2017-06-13 | 顺丰科技有限公司 | Charging inlet short-circuit detecting device, mobile terminal and method for detecting short circuit |
| CN109116179A (en) * | 2018-09-17 | 2019-01-01 | 歌尔股份有限公司 | Handle function tests circuit and handle function test device |
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