CN206742897U - Charger baby micro-short circuit indicating circuit - Google Patents
Charger baby micro-short circuit indicating circuit Download PDFInfo
- Publication number
- CN206742897U CN206742897U CN201720382181.8U CN201720382181U CN206742897U CN 206742897 U CN206742897 U CN 206742897U CN 201720382181 U CN201720382181 U CN 201720382181U CN 206742897 U CN206742897 U CN 206742897U
- Authority
- CN
- China
- Prior art keywords
- circuit
- charger baby
- counting
- micro
- short circuit
- Prior art date
- 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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Abstract
The utility model discloses a kind of charger baby micro-short circuit indicating circuit, the problem of being not easy to discover for charger baby micro-short circuit, there is provided following technical scheme, including impulse circuit, counting circuit, on-off circuit and instruction unit；When charger baby battery charges normal, impulse circuit obtains electricity output pulse signal, and as long as charger baby battery is charged, impulse circuit is output pulse signal, counting circuit is in response to pulse signal keeping count, charger baby battery electric quantity is full of, then impulse circuit stops output pulse signal, counting circuit stops counting, charger baby battery electric quantity underfill, then counting circuit keeping count, when counting duration exceedes the specified charging duration of charger baby battery, then mean charger baby micro-short circuit, counting circuit, which counts, overflows output spill over, on-off circuit is turned in response to spill over to be powered to instruction unit, instruction unit obtain it is electric after light to prompt electric treasured micro-short circuit failure occur, be advantageous to the timely charger baby micro-short circuit failure on-call maintenance of user.
Description
Technical field
A kind of charger baby is the utility model is related to, more specifically, it relates to a kind of charger baby micro-short circuit indicating circuit.
Background technology
Portable power source（Mobile Power Pack, MPP）, also it is charger baby, traveling charger etc..One kind collection power supply and
Charge function can charge whenever and wherever possible in the portable charger of one to digital equipments such as mobile phone, tablet personal computers.Typically by
Lithium cell（Or dry cell, it is more rare）It is convenient to use as charge storage unit.
Micro-short circuit refers to that lithium battery internally occurs small short circuit between battery core and battery core or inside monolithic battery core and showed
As charger baby micro-short circuit situation occurs and most significantly showed, and is, in the case of charge power is normal, actual charge volume is big
In the rated capacity of battery, but battery still underfill.
This short circuit directly will not burn out battery, but in the shorter time（Several weeks or some months）Reduction
Battery core performance, certain a piece of battery core or whole battery pack is caused to use completely.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of charger baby micro-short circuit instruction electricity
Road, it is convenient for people to find the micro-short circuit failure of charger baby in time.
To achieve the above object, the utility model provides following technical scheme：
A kind of charger baby micro-short circuit indicating circuit, including be electrically connected with charger baby battery and enter to charger baby battery
The impulse circuit of output pulse signal during row charging, counted in response to pulse signal and count overflow when output overflow
The counting circuit of signal, it is electrically connected with counting circuit and the on-off circuit that turn in response to spill over and electric with switch
Road is electrically connected with and is controlled by the conducting of on-off circuit to indicate the instruction unit of charger baby micro-short circuit, and the counting circuit, which counts, to overflow
The when a length of specified charging duration of charger baby battery gone out.
Using above-mentioned technical proposal, when the charger baby battery of discharge off is charged, impulse circuit obtain it is electric after export
Pulse signal, as long as and charger baby battery charged, impulse circuit is output pulse signal, and counting circuit is believed in response to pulse
Number keeping count, if charger baby battery electric quantity is full of, impulse circuit stops output pulse signal, and counting circuit stops counting,
If charger baby battery electric quantity underfill, counting circuit keeping count, if counting the specified charging that duration exceedes charger baby battery
Duration, then mean charger baby micro-short circuit, counting circuit, which persistently receives pulse pulse signal, to be continued to count until counting spilling
Export spill over, on-off circuit in response to spill over turn on to be powered to instruction unit, instruction unit obtain it is electric after light with prompting
There is micro-short circuit failure in electric treasured, is advantageous to the timely charger baby micro-short circuit failure on-call maintenance of user.
Preferably, the multivibrator circuit of output pulse signal when the impulse circuit is is powered.
Preferably, the counting circuit is the tetrad counting circuits of CD4020B ten.
Preferably, the on-off circuit is transistor switching circuit.
Preferably, the instruction unit is to be controlled by the electroluminescent lamp of on-off circuit.
In summary, the utility model has the advantages that：When charger baby charging charging duration exceedes specified charging
During duration, counting circuit, which counts, overflows output spill over, on-off circuit in response to spill over drive instruction unit luminous with
Has there is micro-short circuit failure in prompting user's charger baby, is advantageous to the on-call maintenance of timely charger baby.
Brief description of the drawings
Fig. 1 is the theory diagram of charger baby micro-short circuit indicating circuit；
Fig. 2 is the physical circuit connection figure of charger baby micro-short circuit indicating circuit.
In figure：1st, charger baby battery；2nd, impulse circuit；3rd, counting circuit；4th, on-off circuit；5th, instruction unit.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is described in detail.
A kind of charger baby micro-short circuit indicating circuit, reference picture 1, including be electrically connected with and charging with charger baby battery 1
The impulse circuit 2 of output pulse signal when precious battery 1 is charged, counted in response to pulse signal and overflowed counting
When export the counting circuit 3 of spill over, the on-off circuit that is electrically connected with counting circuit 3 and is turned in response to spill over
4 and it is electrically connected with on-off circuit 4 and is controlled by the conducting of on-off circuit 4 to indicate the instruction unit 5 of charger baby micro-short circuit, is counted
Number circuit 3 counts the when a length of specified charging duration of charger baby battery 1 overflowed.
Charger baby battery 1 be normally carried out charging when, impulse circuit 2 it is electric after output pulse signal, as long as and charger baby
Battery 1 is charged, and impulse circuit 2 is output pulse signal, and counting circuit 3 is in response to pulse signal keeping count, if charging
The precious electricity of battery 1 is full of, then impulse circuit 2 stops output pulse signal, and counting circuit 3 stops counting, if the electricity of charger baby battery 1
Underfill is measured, then the keeping count of counting circuit 3, if counting the specified charging duration that duration exceedes charger baby battery 1, meaned
Charger baby micro-short circuit, counting circuit 3, which persistently receives pulse pulse signal, to be continued to count up to counting spilling output spill over,
On-off circuit 4 is turned on to be powered to instruction unit 5 in response to spill over, instruction unit 5 it is electric after prompted user charger baby
There is micro-short circuit failure, be advantageous to the on-call maintenance of timely charger baby.
Reference picture 2, the multivibrator circuit of output pulse signal, physical circuit are connected as when impulse circuit 2 is is powered：
Including resistance R1, resistance R2, slide rheostat RP, 555 chip ICs 1, electric capacity C2, electric capacity C6, wherein 555 chips
IC1 is NE555, and the port charged to charger baby battery 1, while charging port are connected to after NE555 7 pin series resistance R1
Charger baby battery 1GB positive pole is connected to after series diode D1, cunning is connected to after NE555 7 pins while series resistance R2
Dynamic rheostat RP fixing end and mobile terminal, slide rheostat RP another fixing end is connected to NE555 2 pins, NE555
2 pins be connected to NE555 6 pins simultaneously, the negative of charger baby battery 1GB is connected to after NE555 6 pin series capacitance C6
Pole, charger baby battery 1GB negative pole is connected to after NE555 5 pin series capacitance C2, and NE555 4 pins and 8 pins connect
It is connected to charger baby battery 1GB negative pole, NE555 3 pin output pulse signals.
Reference picture 2, counting circuit 3 are the tetrad counting circuits 3 of CD4020B ten, and on-off circuit 4 is triode switch
Circuit 4, instruction unit 5 are to be controlled by the electroluminescent lamp of on-off circuit 4, and specific circuit is connected as：
Counting circuit 3 includes chip IC 2, resistance R3, resistance R4, electric capacity C3 and electric capacity C4, and wherein chip IC 2 is
3 pins that CD4020B, CD4020B 10 pins are connected to NE555 are connected to return pulse signal, CD4020B 16 pins
The port charged to charger baby battery 1, CD4020B 11 pin series resistance R3 are connected to above-mentioned charging port, CD4020B
11 pins be grounded simultaneously after series resistance R4, CD4020B 3 pins are used to export spill over.
Transistor switching circuit 4 includes triode VT1, the resistance R5 of NPN type, and wherein triode VT1 base stage is connected to
CD2040B base stage is connected to the end of above-mentioned charging to receive spill over after triode VT1 base stage while series resistance R5
Mouthful, triode VT1 colelctor electrodes are connected to the charging port of above-mentioned charging, and triode VT1 emitter stage series connection electroluminescent lamp L is followed by
Ground.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of charger baby micro-short circuit indicating circuit, it is characterized in that：Including being electrically connected with charger baby battery (1) and to filling
The impulse circuit (2) of output pulse signal when the precious battery (1) of electricity is charged, in response to pulse signal counted and counted
The counting circuit (3) of spill over is exported when number overflows, is electrically connected with counting circuit (3) and is turned in response to spill over
On-off circuit (4) and be electrically connected with on-off circuit (4) and be controlled by the conducting of on-off circuit (4) to indicate that charger baby is micro-
The instruction unit (5) of short circuit, the counting circuit (3) count the when a length of specified charging duration of charger baby battery (1) overflowed.
2. charger baby micro-short circuit indicating circuit according to claim 1, it is characterized in that：The impulse circuit (2) is energization
When output pulse signal multivibrator circuit.
3. charger baby micro-short circuit indicating circuit according to claim 1, it is characterized in that：The counting circuit (3) is
The tetrad counting circuits (3) of CD4020B ten.
4. charger baby micro-short circuit indicating circuit according to claim 1, it is characterized in that：The on-off circuit (4) is three poles
Pipe on-off circuit.
5. charger baby micro-short circuit indicating circuit according to claim 1, it is characterized in that：The instruction unit (5) is to be controlled by
The electroluminescent lamp of on-off circuit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382181.8U CN206742897U (en) | 2017-04-12 | 2017-04-12 | Charger baby micro-short circuit indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382181.8U CN206742897U (en) | 2017-04-12 | 2017-04-12 | Charger baby micro-short circuit indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742897U true CN206742897U (en) | 2017-12-12 |
Family
ID=60560011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720382181.8U Expired - Fee Related CN206742897U (en) | 2017-04-12 | 2017-04-12 | Charger baby micro-short circuit indicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742897U (en) |
-
2017
- 2017-04-12 CN CN201720382181.8U patent/CN206742897U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20210412 |