CN104134990B - A kind of anti-short circuit protection system of emergency power supply - Google Patents
A kind of anti-short circuit protection system of emergency power supply Download PDFInfo
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- CN104134990B CN104134990B CN201410399268.7A CN201410399268A CN104134990B CN 104134990 B CN104134990 B CN 104134990B CN 201410399268 A CN201410399268 A CN 201410399268A CN 104134990 B CN104134990 B CN 104134990B
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- power supply
- emergency power
- contact jaw
- negative pole
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Abstract
The invention discloses a kind of anti-short circuit protection system of emergency power supply, including emergency power supply, for clamping the battery of automobile batteries both positive and negative polarity just, negative pole clamp, battery folders are just, negative pole clamp is provided with the first contact jaw and the second contact jaw, also include protection circuit, protection circuit includes voltage acquisition control unit and switching device unit, switching device unit is connected to battery folders and born between clamp and emergency power supply negative pole, and be connected with voltage acquisition control unit output end, voltage acquisition control unit gathers external power source by the first contact jaw of positive pole port and negative pole port and accesses signal, and then the switch device conductive on control emergency power supply negative output line road, so as to realize anti-short circuit, it is anti-reverse, anti-reverse charging function.Compared with prior art, the present invention has small volume, safe and reliable and advantages of simple structure and simple, effectively prevent the danger caused by emergency power supply battery folders short circuit, reversal connection automobile batteries and high voltage reverse charge.
Description
Technical field
The present invention relates to field of power supplies, particularly a kind of anti-short circuit protection system of emergency power supply.
Background technology
With the development of the society, more and more people possess private car, but often improper use can cause many problems
Appearance, such as people forgets the lamp that cut-offs when leaving, or forgets to close vehicle electronic device, and the storage so that vehicle-mounted use for a long time
Battery is easy for occurring the situation of not enough power supply, and when starting vehicle next time, used power supply is also by this
Battery is provided, and automobile starting can be caused to fail when accumulator electric-quantity is not enough, at this time, it is necessary to start using car emergency
Power supply provides power supply for automobile starting temporarily.But, because automobile batteries and emergency starting power supply are all big with that can produce moment
The characteristics of electric current, if during using emergency starting power supply as automobile starting power supply, not noting slightly producing short circuit or reversal connection, wink
Between can produce the high current of kiloampere, can not only cause emergency starting power supply to damage, or even cause on fire or cause to use
Person is injured.
Anti-reverse and short circuit current, application number therefore, many producers begin one's study in car emergency startup power supply
200520054634.1 patent publication discloses a kind of Multifunction auto starting power source, including battery, flash lamp circuit,
Electric power detection/display circuit, shot-light, air pump and positive and negative electrode battery folders, in addition to anti-reverse short-circuit protection circuit, the counnter attack
Connect short-circuit protection circuit to be made up of two relays and peripheral circuit for alarming, because emergency starting power supply and automobile batteries are all
The characteristics of with that can produce instantaneous large-current, the anti-reverse short-circuit protection circuit that used large-scale relay is constituted is more stupid
Weight, and have to coordinate key switch during use, people who are unskilled is using easily there is maloperation.
Nowadays the progress of lithium battery has promoted it to use on a large scale, is had become using lithium battery as emergency starting power supply
Widespread practice in industry, but the protection circuit volume of emergency starting power supply described in above-mentioned patent publication is excessively huge and stupid
Weight, it is often used in 12V18AH plumbic acid maintenance-free batteries, the kilogram weight of whole system about 10, so can not consider portable
The problem of, but after power supply changes lithium battery into, only 400 grams of whole system weight, the volume and weight of this protection equipment
Just obviously be not suitable for.
The content of the invention
In view of this, the problem to be solved in the present invention is to provide a kind of small volume, safe and reliable and simple in construction automobile
Emergency power supply is anti-short-circuit, anti-reverse, anti-reverse charging protection system.
The technical solution adopted in the present invention is as follows：A kind of anti-short circuit protection system of emergency power supply, including be attached thereto
Emergency power supply, protection circuit and output port, it is characterised in that
The output port includes the positive pole port and negative pole port being connected with electrical equipment, the positive pole port and negative pole
Port has the first contact jaw and the second contact jaw respectively；The protection circuit includes switching device unit and voltage acquisition is controlled
Unit；
Wherein, the second contact jaw of positive pole port is by the positive pole of connection emergency power supply, and the second of negative pole port connects
Contravention connects the negative pole of emergency power supply by switching device unit；First contact jaw of positive pole port and negative pole port respectively with electricity
Press acquisition control unit connection；
The first contact port processing external power source that the voltage acquisition control unit passes through positive pole port and negative pole port
Correct voltage signal is accessed, and then controls the switch device conductive on emergency power supply negative output line road, then emergency power supply passes through
Second contact jaw of positive pole port and negative pole port realizes output；There is correct voltage signal to connect when it does not collect external power source
Enter, the switching device on emergency power supply negative output line road is closed, and emergency power supply end is not exported externally.
It is preferred that, protect two poles provided with anti-reverse charging between the positive pole of the emergency power supply and the second contact jaw of positive pole port
Pipe.
It is preferred that, the switching device unit includes multiple FETs in parallel, and the source electrode of the FET is with answering
Anxious power cathode is connected, and grid is connected with voltage acquisition control unit output end, drain electrode and the first contact jaw of negative pole port（2-
2）Connection.
It is preferred that, the voltage acquisition control unit uses photoelectrical coupler, the internal illumination source of the photoelectrical coupler
Two ends are connected with the first contact jaw of positive and negative electrode port respectively, light-receiving device output end and switching device list inside photoelectrical coupler
First control end connection.
It is preferred that, the output port uses battery folders, and positive pole port and the first contact jaw of negative pole port and second connect
Contravention is respectively two jig arm of battery folders.
It is preferred that, the electrical equipment is automobile batteries and starts motor.
It is preferred that, it is connected between the second contact jaw of the positive pole port and negative pole port for preventing switching device list
The interpolar stray capacitance of member causes the release resistance of time delayed turn-off.
It is preferred that, being provided between the light-receiving device output end and emergency power supply negative pole of photoelectrical coupler is used to indicate that system works
The signal lamp of state.
It is preferred that, a current limliting is provided between the first contact jaw and photoelectrical coupler light emitting source input of the positive pole port
Anti-reverse clamp diode D1 and filter capacitor C1 is provided between first contact jaw of resistance R1, positive pole port and negative pole port.
Compared with prior art, the protection system is used on car emergency power supply, by protection circuit with having voltage
Detect that the battery folders of control function coordinate so that the emergency power supply is when the situation in reversal connection automobile batteries or short circuit battery folders
Under, emergency power supply, which is remained, to be off, the timely automated conducting of energy after battery folders connection is correct, it is not necessary to use
How person's study uses, and built-in anti-reverse charging unit protects the security of emergency power supply very well, it is to avoid super-high-current is anti-
The equivalent risk on fire filled caused by lithium battery, and the inventive structure is simple, and small volume is lightweight, and cost is relatively low, compared to existing
There is technology that there is higher practicality and economic value.
Brief description of the drawings
Fig. 1 is the circuit theory schematic diagram of the protection circuit embodiment of anti-shorting system of the present invention；
Fig. 2 is the application state schematic diagram of anti-shorting system embodiment of the present invention.
Embodiment
Make further details of introduction to present invention below in conjunction with drawings and Examples.
Fig. 1 is the circuit theory schematic diagram of the protection circuit embodiment of battery folders of the present invention.
As shown in figure 1, the protection circuit includes voltage acquisition control unit, switching device unit and anti-reverse charging unit,
The left side is to be connected to the positive and negative electrode emergency power supply port 4 as the lithium battery of car emergency power supply, and the right is then by provided with
The battery folders positive and negative electrode clamp of one contact jaw and the second contact jaw is connected with automobile batteries.
Voltage acquisition control unit includes a photoelectrical coupler OC, the photoelectrical coupler OC light emitting sources input and electricity
The first contact jaw connection of pond folder positive pole, output end is connected with the contact jaw of battery folders negative pole first, and the input of light-receiving device is with being somebody's turn to do
The anti-reverse charging unit output end connection of protection circuit, the output end of light-receiving device is connected with switching device unit, so as to according to voltage
Whether the voltage signal of collection terminal collection is correct, so that the conducting and cut-off of controlling switch device cell, photoelectrical coupler OC
Light emitting source input and the contact jaw of battery folders positive pole first between be connected to current-limiting resistance R1 for protecting photoelectrical coupler OC,
So that the input current for controlling automobile batteries is flowed into through resistance R1 current limlitings and it is unlikely to burn out photoelectrical coupler OC, and avoids electricity
Photoelectrical coupler OC is caused to damage when pressing from both sides reversal connection in pond.An anti-reverse pincers are additionally provided between the contact jaw of battery folders both positive and negative polarity first
Position diode D1, is further connected with filter capacitor C1 between photoelectrical coupler input and output end, keeps system output state
It is stable.
Switching device unit is the reverse-connection preventing circuit being formed in parallel by one group of multiple N-channel FET, in the present embodiment
In, four N-channel FETs are connected with altogether, the drain electrode of this four N-channel FETs with battery folders negative pole clamp 2 the
Two contact jaw negative poles are connected, and grid is connected by resistance R2 with photoelectrical coupler OC light-receiving device output end, and source electrode is all connected with
It is connected to the negative pole B- of power port 4, and by a protective resistance R4 on the node between resistance R2 and grid.In photoelectricity coupling
Clutch OC by between the output end and the negative pole B- of power port 4 of light source, be additionally provided with one be used to point out power on luminous two
Pole pipe D2 and series connection and current-limiting resistance R3 thereon, as long as battery folders are correctly clamped on automobile batteries, photoelectrical coupler
OC is connected, and light emitting diode D2 will work luminous, to indicate working state of system conducting or to end.
Anti-reverse charging unit is the counnter attack charging circuit by one group of multiple diodes in parallel, in the present embodiment, altogether parallel connection
Eight Schottky diodes are used as anti-reverse charging element, and the counnter attack charging circuit that should be formed in parallel by eight Schottky diodes is inputted
End is connected with the positive pole B+ of power port 4, and output end is connected to photoelectrical coupler OC and connected by light source input and the positive pole of battery folders
End is connect, after emergency power supply starts successfully, automobile current generator starts to generate electricity, the voltage is held far above lithium battery in emergency power supply
By voltage, larger reversely charging electric current can be formed, and then damage emergency power supply, if without disconnecting battery folders immediately, in some instances it may even be possible to
Fire is produced, the Schottky diode being formed in parallel can effectively block the reversely charging electric current of automobile batteries, so as to ensure lithium electricity
Using for pond is safe.
And provided with release resistance between the anode connection terminal of battery folders positive pole clamp 1 and the negative pole connection end of negative pole clamp
R5, system is obtained after cut-off signals, and the time of actual turning off system output foreshortens to Millisecond.Experiment is learnt after system conducting
Although obtaining cut-off signals, but if without R5 by field pipe interpolar stray capacitance quick release, field pipe cannot end immediately, and
If the end in contact of battery folders two this moment, voltage itself will import signal source, and system output conducting state is maintained, and causes shut-off to be lost
Lose.
It should be noted that the present invention does not limit in the switching device unit mentioned of the present embodiment FET and anti-
Number of diodes in reversely charging unit, and above-mentioned component selection, can carry out according to actual needs in implementation process corresponding
Adjustment.Equally, voltage acquisition control unit can use the device of any detectable external voltage or current signal, switching device list
Member can use any setting that can be played the switch of control circuit on-off action, and be equipped with associated peripheral circuits.For example, derailing switch
Part uses other transistors, or using gate-controlled switches such as relays.Voltage acquisition control unit uses intelligent chip, uses chip
I/O mouthfuls of collection signals, and output control relay or transistor.These are correlation of the those skilled in the art according to the present invention
The function description of circuit unit, is readily apparent that.
Photoelectrical coupler is used in the present invention, is, because the operating current of photoelectrical coupler is smaller, normally only to need 5mA to drive
Electric current can just make photoelectrical coupler reliably working, and the automobile batteries capacity of interim overdischarge is generally 12V, more than 65AH,
As long as automobile batteries also has more than 20% capacity, open-circuit voltage can maintain more than 11V.Protection circuit of the present invention
The middle voltage for requiring to provide the electric current and more than 8V that just correspond to original battery a ten thousandth or so, you can reliably working.Using
Photoelectrical coupler coordinates the mode of FET, and not only reliable operation, and protection circuit is relatively easy, small volume is lightweight.
Fig. 2 is the application state schematic diagram of battery folders embodiment of the present invention.
As shown in Fig. 2 output port is using two battery folders positive and negative electrode clamps 1 and 2 in the embodiment, representing respectively should
The positive and negative polarities in urgent telegram source, each battery folders clamp respectively include up and down two pieces usually non-touching metal tooth 1-1,1-2 and
Extraction wire is connected to battery folders protection circuit respectively on 2-1,2-2, metal tooth 1-1 and 2-1.Wherein metal tooth 1-1,2-1 lead to
Cross the two ends that wire connects the luminous source diodes of photoelectrical coupler OC in protection circuit respectively, the access for gathering automobile batteries
Signal, the work of starting protection circuit.The positive pole energy that metal tooth 1-2 connects the emergency power supply in protection circuit by wire is exported
End, the FET that metal tooth 2-2 is connected by wire in protection circuit drains, and is realized and emergency power supply after FET conducting
Negative pole connection, discharge loop is ultimately formed to start automobile.
Protection circuit makes packaged module, and emergency power supply, i.e. emergency power supply energy are connected from figure by connectivity port 4
B+, B- access in 1.
When not in use, because the contact jaw of battery folders positive and negative electrode first does not collect effective voltage signal, without electric current
Photoelectrical coupler OC in protection circuit is supplied to, so that FET is constantly in cut-off state, even if two battery folders are mutual
Phase short circuit or with external cell reversal connection, all without causing short circuit.
When battery folders are correctly connected to automobile batteries, the voltage of automobile power source makes in photoelectrical coupler light emitting diode
By the light-receiving device conducting of electric current, now the photoelectrical coupler OC in protection circuit voltage acquisition control unit, emergency power supply
Voltage-drop loading to FET grid so that FET is turned on, and then makes emergency power supply and automobile batteries turned in parallel,
It now can just start automobile immediately.
When battery folders are reversed arrives automobile batteries, positive and negative electrode the first contact jaw reversal connection of battery folders so that photoelectricity coupling
Clutch OC light emitting source does not have electric current to pass through, and the light-receiving device in photoelectrical coupler is not turned on, the field-effect in switching device unit
Pipe is also at cut-off state, and then emergency power supply is off with automobile batteries, it is therefore prevented that battery folders reversal connection causes
Existing danger.
In actual use, output port is not limited to battery folders, can be that any convenience connects with electrical equipment or external power source
The device connect.
Compared with prior art, the battery folders are used on car emergency power supply, by protection circuit with being connect with two
The battery folders of contravention coordinate so that the emergency power supply keeps emergent in the case of reversal connection automobile batteries or short circuit battery folders
Power supply is exported and is off, and the timely automated conducting of energy after battery folders connection is correct, it is not necessary to which user learns such as
What is used, and built-in anti-reverse charging unit protects the security of emergency power supply well, it is to avoid super-high-current reversely charging lithium electricity
Equivalent risk on fire caused by pond, it is overall that there is very strong safety and reliability.
The system connectors are using the red-black dichromatism multiple cord of high temperature resistant silica gel, and line is interior to be provided with high-temperature insulation line, for adopting
Collect external voltage signal.
The invention global design has very strong reliability, and system has good self-protection function.And the invention
Simple in construction, small volume is lightweight, and cost is relatively low, completely eliminates lithium battery short circuit in car emergency field of power supplies, instead
Connect, the unsafe factor such as reversely charging, there is higher practicality and economic benefit compared to prior art.
The functional module do not introduced specifically in the present invention can not gone to live in the household of one's in-laws on getting married herein using functional module ripe in the prior art
State.
Above-described embodiment is only the preferably implementation of the present invention, and it describes more specific and in detail, but can not be because
This and be interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these obvious alternative forms belong to
In protection scope of the present invention.
Claims (8)
1. a kind of anti-short circuit protection system of emergency power supply, including emergency power supply, protection circuit and the output port being sequentially connected, its
It is characterised by,
The output port includes the positive pole port and negative pole port being connected with electrical equipment, the positive pole port and negative pole port
There is the first contact jaw respectively（1-1,2-1）With the second contact jaw（1-2,2-2）；The protection circuit includes switching device unit
With voltage acquisition control unit；
Wherein, the second contact jaw of positive pole port（1-2）Connect by the positive pole of connection emergency power supply, the second of negative pole port
Contravention（2-2）The negative pole of emergency power supply is connected by switching device unit；Positive pole port and the first contact jaw of negative pole port（1-
1,2-1）It is connected respectively with voltage acquisition control unit；
It is connected between second contact jaw of the positive pole port and negative pole port for preventing the interpolar of switching device unit miscellaneous
Spurious capacitance causes the release resistance R5 of time delayed turn-off；
The voltage acquisition control unit is gathering external power source access just by the first contact jaw of positive pole port and negative pole port
True voltage signal, and then control the switch device conductive on emergency power supply negative output line road, then emergency power supply passes through positive terminal
Mouth and the second contact jaw of negative pole port realize output；There is correct voltage signal to access when it does not collect external power source, should
Switching device on the negative output line road of urgent telegram source is closed, and emergency power supply end is not exported externally.
2. the anti-short circuit protection system of emergency power supply according to claim 1, it is characterised in that the positive pole of the emergency power supply
Anti-reverse charging protection diode is provided between the second contact jaw of positive pole port.
3. the anti-short circuit protection system of emergency power supply according to claim 1, it is characterised in that the switching device unit bag
Multiple FETs in parallel are included, the source electrode of the FET is connected with emergency power supply negative pole, grid is controlled with voltage acquisition
Unit control end is connected, drain electrode and the second contact jaw of negative pole port（2-2）Connection.
4. the anti-short circuit protection system of emergency power supply according to claim 1, it is characterised in that the voltage acquisition control is single
Member uses photoelectrical coupler, the first contact jaw of the internal illumination source two ends of the photoelectrical coupler respectively with positive and negative electrode port
Light-receiving device output end is connected with switching device unit control end inside connection, photoelectrical coupler.
5. the anti-short circuit protection system of emergency power supply according to claim 1, it is characterised in that the output port is using electricity
First contact jaw of Chi Jia, positive pole port and negative pole port（1-1,2-1）With the second contact jaw（1-2,2-2）Respectively battery folders
Two jig arm.
6. the anti-short circuit protection system of emergency power supply according to claim 1, it is characterised in that the electrical equipment is automobile
Battery and startup motor.
7. the anti-short circuit protection system of emergency power supply according to claim 4, it is characterised in that the light-receiving device of photoelectrical coupler
The signal lamp for being used for indicating working state of system is provided between output end and emergency power supply negative pole.
8. the anti-short circuit protection system of emergency power supply according to claim 4, it is characterised in that the first of the positive pole port
A current-limiting resistance R1 is provided between contact jaw and photoelectrical coupler light emitting source input, the first of positive pole port and negative pole port connects
Anti-reverse clamp diode D1 and filter capacitor C1 is provided between contravention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410399268.7A CN104134990B (en) | 2014-08-14 | 2014-08-14 | A kind of anti-short circuit protection system of emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410399268.7A CN104134990B (en) | 2014-08-14 | 2014-08-14 | A kind of anti-short circuit protection system of emergency power supply |
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| CN104134990A CN104134990A (en) | 2014-11-05 |
| CN104134990B true CN104134990B (en) | 2017-08-04 |
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| CN201410399268.7A Active CN104134990B (en) | 2014-08-14 | 2014-08-14 | A kind of anti-short circuit protection system of emergency power supply |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204651906U (en) * | 2015-01-28 | 2015-09-16 | 深圳市成昌顺电子科技有限公司 | A kind of automobile emergency starts battery safety folder |
| CN106655330B (en) * | 2016-10-27 | 2019-01-04 | 江苏科技大学 | A kind of anti-short circuit protection system of emergency power supply |
| CN106655331B (en) * | 2016-10-27 | 2018-12-11 | 江苏科技大学 | A kind of emergency power supply protection system |
| CN106655332B (en) * | 2016-10-27 | 2018-12-25 | 江苏科技大学 | A kind of anti-short circuit protection system of power supply |
| CN106655106A (en) * | 2017-01-13 | 2017-05-10 | 常州市派腾电子技术服务有限公司 | Electronic cigarette and battery protection circuit thereof |
| CN107230966A (en) * | 2017-07-06 | 2017-10-03 | 成都交大许继电气有限责任公司 | Traction substation direct current dead electricity emergency protection system and method |
| CN109347172B (en) * | 2018-11-22 | 2023-10-27 | 浙江安伴汽车安全急救技术股份有限公司 | Portable starting power supply for vehicle |
| CN110972372A (en) * | 2019-12-26 | 2020-04-07 | 上海唐盛信息科技有限公司 | High-pressure sodium lamp for plant cultivation room |
| CN112382028A (en) * | 2020-10-27 | 2021-02-19 | 淮北工科检测检验有限公司 | Alarm system utilizing photovoltaic power generation and working mode thereof |
| KR20230093497A (en) * | 2020-11-19 | 2023-06-27 | 선전 카쿠 테크놀로지 컴퍼니., 리미티드 | Smart Connectivity, Starting Power and Battery Clamp |
| CN114189020A (en) * | 2021-12-14 | 2022-03-15 | 深圳市卡莱福科技有限公司 | Vehicle emergency starting device and wire clamp device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449998Y (en) * | 2000-08-07 | 2001-09-26 | 洪光复 | Intelligent battery charging wire device for car |
| CN2514355Y (en) * | 2001-11-14 | 2002-10-02 | 毅威科技有限公司 | DC power supply wiring with polar protection |
| CN204167905U (en) * | 2014-08-14 | 2015-02-18 | 惠州市新科华实业有限公司 | A kind of emergency power supply against short-circuit protection system |
-
2014
- 2014-08-14 CN CN201410399268.7A patent/CN104134990B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449998Y (en) * | 2000-08-07 | 2001-09-26 | 洪光复 | Intelligent battery charging wire device for car |
| CN2514355Y (en) * | 2001-11-14 | 2002-10-02 | 毅威科技有限公司 | DC power supply wiring with polar protection |
| CN204167905U (en) * | 2014-08-14 | 2015-02-18 | 惠州市新科华实业有限公司 | A kind of emergency power supply against short-circuit protection system |
Non-Patent Citations (1)
| Title |
|---|
| 一种实用动力电池用大功率电子开关设计;陈诚 等;《硬件纵横》;20131231;第32卷(第19期);第35-36页 * |
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| CN104134990A (en) | 2014-11-05 |
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