CN206947935U - A kind of battery overload short circuit automatic power-off protection circuit - Google Patents
A kind of battery overload short circuit automatic power-off protection circuit Download PDFInfo
- Publication number
- CN206947935U CN206947935U CN201720354232.6U CN201720354232U CN206947935U CN 206947935 U CN206947935 U CN 206947935U CN 201720354232 U CN201720354232 U CN 201720354232U CN 206947935 U CN206947935 U CN 206947935U
- Authority
- CN
- China
- Prior art keywords
- resistance
- triodes
- batteries
- pin
- battery
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a kind of battery overload short circuit automatic power-off protection circuit, it is related to secondary battery protection circuit, including BT1 batteries and BT2 batteries, the negative pole end series connection L1 inductance of the BT1 batteries, the normally-closed contacts of J1 1 are connected to the positive terminal of BT2 batteries, the negative pole end of the BT1 batteries is connected to 1 pin of IC1 photoelectrical couplers through R1 resistance, 2 pin of the IC1 photoelectrical couplers are connected between L1 inductance and the normally-closed contacts of J1 1, 4 pin of the IC1 photoelectrical couplers are connected to the positive terminal of BT2 batteries, 3 pin of the IC1 photoelectrical couplers are connected to D2 diode cathodes, one end of R6 resistance, D3 diode cathodes, one end of R8 resistance and the colelctor electrode of Q4 triodes；The circuit that the utility model can prompt battery to be connected has overload or the failure of short circuit; whole device is simple in construction, is easily installed debugging, serves protection battery; the effect of its service life is improved, and helps to prevent the fire that automobile circuit triggers by short circuit.
Description
Technical field
It the utility model is related to secondary battery protection circuit, and in particular to a kind of battery overload short circuit automatically powers off protection electricity
Road.
Background technology
Automobile storage battery be automobile can normal operation energy safeguard, its life-span is relevant with usually charge and discharge electric equilibrium.Store
Battery will just have a strong impact on its service life in the case of long-time overdischarge, namely overload.Starter motor usage time mistake
Length, line short, electrical equipment damage are the main reason for causing battery to overload.Especially consequence caused by line short is the tightest
Weight, because main circuit is that fuse, therefore, line short are not installed in the requirement for meeting engine cranking motor starting current typically
Battery damage is not only caused, and is the major reason for causing automobile fire.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of battery overload short circuit and automatically powers off protection electricity
Road, the circuit that battery can be prompted to be connected have overload or the failure of short circuit.
To realize object above, the utility model is achieved by the following technical programs：A kind of battery overload short circuit
Automatic power-off protection circuit, including BT1 batteries and BT2 batteries, negative pole end series connection L1 inductance, the J1- of the BT1 batteries
1 normally-closed contact is connected to the positive terminal of BT2 batteries, and the negative pole end of the BT1 batteries is connected to IC1 photoelectricity couplings through R1 resistance
1 pin of clutch, 2 pin of the IC1 photoelectrical couplers are connected between L1 inductance and J1-1 normally-closed contacts, the IC1 photoelectricity coupling
4 pin of clutch are connected to the positive terminal of BT2 batteries, and 3 pin of the IC1 photoelectrical couplers are connected to D2 diode cathodes, R6
One end of resistance, D3 diode cathodes, the colelctor electrode of one end of R8 resistance and Q4 triodes；The D2 diode cathodes connection
To the other end of R6 resistance, the R6 resistance through R7 resistance by being also connected to the bases of Q5 triodes while C1 capacity earths
Pole, the R8 resistance other end ground connection, the D3 diode cathodes are connected to the emitter stage of Q5 triodes, the Q5 triodes
Colelctor electrode is connected to the base stage of Q3 triodes by R9 resistance, and the colelctor electrode of the Q3 triodes is connected to the base of Q4 triodes
Pole, the colelctor electrode of the Q4 triodes are connected to base stage through R10 resistance；The emitter stage of the Q4 triodes is connected to Y1 buzzings
Device；The positive terminal of the BT2 batteries is connected to one end of J1 relays, and 4 pin of the IC1 photoelectrical couplers are connected to K1
On switch, three tunnels of the K1 switches other end point, connect all the way RT1 temperature switches, R5 resistance, R4 resistance are connected to Y1 buzzers
Finally it is grounded, connect all the way R2 resistance, R3 resistance and the positive pole for being connected to D1 diodes, is connected to the transmitting of Q1 triodes all the way
Pole, the negative pole of the D1 diodes are also connected to the colelctor electrode of Q2 triodes while being connected to the other end of J1 relays；Institute
The base stage for stating Q2 triodes is connected between R4 resistance and R5 resistance, the grounded emitter of the Q2 triodes, the poles of Q1 tri-
The base stage of pipe is connected between R2 resistance and R3 resistance, and the colelctor electrode of the Q1 triodes is connected on Y1 buzzers；The Q3
The grounded emitter of triode.
Preferably, the BT1 batteries and BT2 batteries are voltage 6V battery.
The utility model provides a kind of battery overload short circuit automatic power-off protection circuit, battery can be prompted to connect
The circuit connect has overload or the failure of short circuit, and whole device is simple in construction, is easily installed debugging, serves protection battery, carries
The effect of its high service life, and help to prevent the fire that automobile circuit triggers by short circuit.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Embodiment：
As shown in figure 1, a kind of battery overload short circuit automatic power-off protection circuit, including BT1 batteries and BT2 electric power storages
Pond, negative pole end series connection L1 inductance, the J1-1 normally-closed contacts of the BT1 batteries are connected to the positive terminal of BT2 batteries, described
The negative pole end of BT1 batteries is connected to 1 pin of IC1 photoelectrical couplers, the 2 pin connection of the IC1 photoelectrical couplers through R1 resistance
To between L1 inductance and J1-1 normally-closed contacts, 4 pin of the IC1 photoelectrical couplers are connected to the positive terminal of BT2 batteries, institute
3 pin for stating IC1 photoelectrical couplers are connected to D2 diode cathodes, one end of R6 resistance, D3 diode cathodes, one end of R8 resistance
With the colelctor electrode of Q4 triodes；The D2 diode cathodes are connected to the other end of R6 resistance, and the R6 resistance passes through C1 electric capacity
The base stage of Q5 triodes, the R8 resistance other end ground connection are also connected to while ground connection through R7 resistance, the D3 diodes are born
Pole is connected to the emitter stage of Q5 triodes, and the colelctor electrode of the Q5 triodes is connected to the base stage of Q3 triodes by R9 resistance,
The colelctor electrode of the Q3 triodes is connected to the base stage of Q4 triodes, and the colelctor electrode of the Q4 triodes is connected to through R10 resistance
Base stage；The emitter stage of the Q4 triodes is connected to Y1 buzzers；The positive terminal of the BT2 batteries is connected to J1 relays
One end, 4 pin of the IC1 photoelectrical couplers are connected on K1 switches, and three tunnels of the K1 switches other end point, connect RT1 all the way
Temperature switch, R5 resistance, R4 resistance are connected to Y1 buzzers and are finally grounded, and connect R2 resistance, R3 resistance and is connected to D1 all the way
The positive pole of diode, is connected to the emitter stage of Q1 triodes all the way, and the negative pole of the D1 diodes is connected to the another of J1 relays
The colelctor electrode of Q2 triodes is also connected to while one end；The base stage of the Q2 triodes be connected to R4 resistance and R5 resistance it
Between, the grounded emitter of the Q2 triodes, the base stage of the Q1 triodes is connected between R2 resistance and R3 resistance, the Q1
The colelctor electrode of triode is connected on Y1 buzzers；The grounded emitter of the Q3 triodes.
Preferably, the BT1 batteries and BT2 batteries are voltage 6V battery.
Circuit operation principle：The positive pole of battery and negative pole are connected on automobile power supply circuit first, when instantaneous vehicle opens
When dynamic, starting current can be very big, and just lower negative voltage will be now produced at L1 inductance both ends, and upper cathode voltage connects through R1 resistance
The pin of IC1 photoelectrical couplers 2 is connected to, about 2V voltages caused by L1 inductance both ends send out the luminous tube inside IC1 photoelectrical couplers
Light, triggers IC1 photoelectrical coupler triode ONs, and the pin of IC1 photoelectrical couplers 4 is connected to the positive terminal of 6V batteries, makes IC1
The pin of photoelectrical coupler 3 output 6V voltages make Q5 triode ONs, colelctor electrode output height while charging through R6 resistance to C1 electric capacity
Level makes Q3 triode ONs through R9 resistance, Q4 triodes is in cut-off state, and colelctor electrode makes the poles of Q2 tri- without high level output
Pipe ends, J1 relay not adhesives, battery is kept 12V output states.
After automobile normally starts, the time is very short, and the load of line powering that battery is connected is normal load state, L1
Voltage caused by inductance both ends is disappeared quickly, IC1 photoelectrical coupler internal illumination pipes is not worked, and IC1 photoelectrical couplers are cut
Only, 3 pin Non voltage output, now C1 electric capacity it is charged will through D2 diode cathodes to negative pole to R8 resistance to discharge.
After overload or short circuit occurs because of some reasons in automobile line, produced at the L1 inductance both ends of internal storage battery
2V voltages IC1 photoelectrical coupler internal illuminations pipe is worked, the pin of IC1 photoelectrical couplers 3 exports 6V voltages through R6 resistance to electricity
Make Q5 triode ONs while holding C6 chargings, colelctor electrode exports high level makes Q3 triode ONs through R9 resistance, and colelctor electrode is defeated
Going out low level makes Q4 transistor bases be in low level, the cut-off of Q4 triodes, and Q2 triodes end, and J1 relays do not work,
J1-1 normally-closed contacts are kept closed.When automobile line keeps overload or short-circuit condition, the pin of IC1 photoelectrical couplers 3
High level is still exported, C1 electric capacity is filled, and now the charged pressure of C1 electric capacity makes the poles of Q5 tri- higher than Q5 emitter voltages 0.5V or so
Pipe ends, and colelctor electrode output low level ends Q3 triodes, and the high level of the pin of IC1 photoelectrical couplers 3 output arrives through R10 resistance
Q4 transistor bases, make Q4 triode ONs, and emitter stage output high level is connected to the base stage of Q2 triodes through R4 resistance, makes Q2
Triode ON, J1 relays obtain electric work, make the normally opened contact adhesive of J1 relays, so as to disconnect the normally closed of J1 relays
Contact, internal storage battery 6V batteries series circuit is disconnected, so as to disconnect the 12V of battery power supply outputs, connect battery
The line load power-off connect, so as to avoid circuit because overload or short circuit make fire occurs electric wire overheats in circuit.
When battery 12V power power-off after, now because of Q2 triode ONs after, colelctor electrode is in low level, is now
D1 diode forwards turn on, and Q1 transistor bases voltage is less than emitter voltage, make Q1 triode ONs, colelctor electrode output height
Level is connected to Q2 transistor bases through R4 resistance makes Q2 triodes be in continuation conducting state, J1 relays is kept work
State, J1 relay normally open contacts keep attracting state, while remain off the normally-closed contact of J1 relays, make electric power storage
Pond is without 12V voltage outputs.The high level that emitter stage exports while Q4 triode ONs makes Y1 buzzers send alarm simultaneously
Sound, the circuit for prompting battery to be connected have overload or the failure of short circuit.
RT1 temperature switches are connected with the positive pole of BT2 internal storage battery 6V batteries, when internal storage battery is because of some reason temperature
After degree exceedes set temperature, RT1 temperature switch internal switchings, 6V voltages are connected to the base stage of Q2 triodes through R5 resistance, made
Q2 triode ONs, make J1 relay adhesives, so as to disconnect J1-1 normally-closed contacts, so as to disconnect the 12V voltages of battery, Q2
After triode ON, make D2 diode forwards turn on, make Q1 triode ONs, make Y1 buzzers sound the alarm sound while,
Tend to remain on Q2 triodes, J1 relays keep attracting state, and battery is kept without 12V voltage outputs.
After overload or short trouble exclude, K1 switches, after making Q1 transistor emitters without 6V voltages, colelctor electrode are clicked
Without high level output, end Q2 triodes, J1 relays do not work, make J1-1 normally opened contact not adhesives, connect normally-closed contact
It is logical, battery 12V Voltage On states, so that battery normal power supply.
Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing reality
Example is applied the utility model is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and model of various embodiments of the utility model technical scheme
Enclose.
Claims (2)
- A kind of 1. battery overload short circuit automatic power-off protection circuit, it is characterised in that including BT1 batteries and BT2 batteries, Negative pole end series connection L1 inductance, the J1-1 normally-closed contacts of the BT1 batteries are connected to the positive terminal of BT2 batteries, and the BT1 stores The negative pole end of battery is connected to 1 pin of IC1 photoelectrical couplers through R1 resistance, and 2 pin of the IC1 photoelectrical couplers are connected to L1 electricity Between sense and J1-1 normally-closed contacts, 4 pin of the IC1 photoelectrical couplers are connected to the positive terminal of BT2 batteries, the IC1 light 3 pin of electric coupler are connected to D2 diode cathodes, one end of R6 resistance, D3 diode cathodes, one end of R8 resistance and Q4 tri- The colelctor electrode of pole pipe；The D2 diode cathodes are connected to the other end of R6 resistance, and the R6 resistance passes through C1 capacity earths The base stage of Q5 triodes, the R8 resistance other end ground connection, the D3 diode cathodes connection are also connected to through R7 resistance simultaneously To the emitter stage of Q5 triodes, the colelctor electrode of the Q5 triodes is connected to the base stage of Q3 triodes, the Q3 by R9 resistance The colelctor electrode of triode is connected to the base stage of Q4 triodes, and the colelctor electrode of the Q4 triodes is connected to base stage through R10 resistance；Institute The emitter stage for stating Q4 triodes is connected to Y1 buzzers；The positive terminal of the BT2 batteries is connected to one end of J1 relays, institute 4 pin for stating IC1 photoelectrical couplers are connected on K1 switches, and three tunnels of the K1 switches other end point, RT1 temperature of connecting all the way is opened Pass, R5 resistance, R4 resistance are connected to Y1 buzzers and are finally grounded, and connect R2 resistance, R3 resistance and is connected to D1 diodes all the way Positive pole, be connected to the emitter stages of Q1 triodes all the way, the negative pole of the D1 diodes is connected to the other end of J1 relays The colelctor electrode of Q2 triodes is also connected to simultaneously；The base stage of the Q2 triodes is connected between R4 resistance and R5 resistance, described The grounded emitter of Q2 triodes, the base stage of the Q1 triodes are connected between R2 resistance and R3 resistance, the Q1 triodes Colelctor electrode be connected on Y1 buzzers；The grounded emitter of the Q3 triodes.
- 2. battery overload short circuit automatic power-off protection circuit as claimed in claim 1, it is characterised in that the BT1 electric power storages Pond and BT2 batteries are voltage 6V battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354232.6U CN206947935U (en) | 2017-04-06 | 2017-04-06 | A kind of battery overload short circuit automatic power-off protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720354232.6U CN206947935U (en) | 2017-04-06 | 2017-04-06 | A kind of battery overload short circuit automatic power-off protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206947935U true CN206947935U (en) | 2018-01-30 |
Family
ID=61358422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720354232.6U Withdrawn - After Issue CN206947935U (en) | 2017-04-06 | 2017-04-06 | A kind of battery overload short circuit automatic power-off protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206947935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541242A (en) * | 2021-06-24 | 2021-10-22 | 广西电网有限责任公司钦州供电局 | Storage battery pack open circuit monitoring and voltage loss compensation device |
-
2017
- 2017-04-06 CN CN201720354232.6U patent/CN206947935U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541242A (en) * | 2021-06-24 | 2021-10-22 | 广西电网有限责任公司钦州供电局 | Storage battery pack open circuit monitoring and voltage loss compensation device |
| CN113541242B (en) * | 2021-06-24 | 2022-11-25 | 广西电网有限责任公司钦州供电局 | Storage battery pack open circuit monitoring and voltage loss compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104467044A (en) | Charging control circuit and charger | |
| CN107069672A (en) | A kind of battery overload short circuit automatic power-off protection circuit | |
| CN104410139A (en) | Automatic power off circuit and automatic power off device for full charging of storage battery of accumulator car | |
| CN201868860U (en) | Overdischarge protective circuit of handheld dust collector | |
| CN206947935U (en) | A kind of battery overload short circuit automatic power-off protection circuit | |
| CN202930922U (en) | Lithium battery protective circuit | |
| CN201813158U (en) | Circuit for charging battery jar and preventing anode and cathode from reverse connection | |
| CN205753567U (en) | Intelligent charger | |
| CN103219778A (en) | 5V output mobile power supply | |
| CN105207332B (en) | Electric car charger intelligent control circuit | |
| CN206889149U (en) | A kind of automobile starting switch contact sinters melting welding automatic detection protection circuit | |
| CN204391837U (en) | Be suitable for the automatic power-off circuit of electric motor car charging and the electric motor car of this circuit is installed | |
| CN104065043B (en) | Battery under-voltage protection and display circuit | |
| CN106329607A (en) | Charger with function of automatically switching off charging/discharging | |
| CN105006849A (en) | Intelligent switching-off control system of battery charger | |
| CN209845391U (en) | Solar street lamp control circuit | |
| CN106532838A (en) | Internal circuit of charger of using USB interface of computer | |
| CN203481801U (en) | Battery charging and discharging protection circuit | |
| CN207234457U (en) | Charging battery of electric vehicle protects circuit | |
| CN203368008U (en) | Solar fan circuit with function of charge and discharge protection | |
| CN206962505U (en) | Anti- reverse battery protection circuit and charger | |
| CN205901702U (en) | Solid -state switch circuit of high voltage direct current double - circuit interlocking | |
| CN206313426U (en) | A kind of short-circuit protector with warning function | |
| CN105811491A (en) | Intelligent turn-off control system for electronic circuit | |
| CN216959365U (en) | Robot charging circuit and robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20190315 |
|
| AV01 | Patent right actively abandoned |