CN207588436U - A kind of reserve battery under-voltage protection and charge-discharge circuit - Google Patents
A kind of reserve battery under-voltage protection and charge-discharge circuit Download PDFInfo
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- CN207588436U CN207588436U CN201721583754.XU CN201721583754U CN207588436U CN 207588436 U CN207588436 U CN 207588436U CN 201721583754 U CN201721583754 U CN 201721583754U CN 207588436 U CN207588436 U CN 207588436U
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- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 19
- 230000005669 field effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is related to a kind of reserve battery under-voltage protection and charge-discharge circuits; and use the reserve battery under-voltage protection and the alarm controller of charge-discharge circuit; when the circuit main power voltage normally exports, the main power source be the load equipment power and be the reserve battery charging；When the main power source Non voltage output, powered by reserve battery for the load equipment；When the main power source Non voltage output, and when the reserve battery is under-voltage, reserve battery under-voltage protective module cuts off backup battery voltage output, and under-voltage protection is carried out to the reserve battery；After main power voltage restores normal output, to being charged by the reserve battery of under-voltage protection.
Description
Technical field
The utility model is related to fire-fighting and security alarm controller fields, provide a kind of with the battery-powered report of standby electricity
Alert controller, and the controller has standby electric under-voltage protection function and charge-discharge circuit.
Background technology
With popularizing for combustion gas, combustion gas is safe to use to be also increasingly caused attention, and fire protection warning equipment also needs in market
It asks lower gradually to grow up.The function of fire protection warning equipment is：Under gas leakage or fire hazard environment, some objects are monitored in real time
Reason amount, the automatic alarm when monitoring physical quantity and reach dangerous values, and controls wind turbine or valve event.Fire protection warning functions of the equipments
Realization is all based on the basis of having stabilized power source power supply, so Power Management Design is particularly important to product development.If use field
Alternating current power-off occurred, and power without other stand-by power supplies, in the process once fire-fighting accident occurs, it is more likely that can give
Enterprise or individual bring destructive loss.So fire-fighting performs standard requirement, in order to cope with the situation that main power source powers off suddenly,
Fire protection warning equipment must have standby Electricity Functional.
The stand-by power supply generally used is lead-acid battery, however during reserve battery use, it is frequently encountered following
Problem：1. standby electricity over-discharge causes battery to be scrapped.2. after standby electricity under-voltage protection, when city power recovery works normally, charging electricity
Road cannot automatically open, and main electricity can not give standby electricity to charge in time.
Invention content
In view of the above-mentioned problems, the utility model provides a kind of reserve battery under-voltage protection and charge-discharge circuit.
Specifically, the utility model is related to a kind of reserve battery under-voltage protection and charge-discharge circuit, including：
Main power source module, the input terminal of the main power source module are electrically connected alternating current, and the output terminal of the main power source module is electrical
Connect the first input of the input terminal of load equipment, the input terminal of reserve battery charging module and reserve battery under-voltage protective module
End；
The reserve battery charging module, the output terminal of the reserve battery charging module are electrically connected the battery back-up module
Charge and discharge end；
The battery back-up module, the charge and discharge end of the battery back-up module be electrically connected the load equipment input terminal and
Second input terminal of the reserve battery under-voltage protective module；
The reserve battery under-voltage protective module of under-voltage protection is provided for the battery back-up module, the reserve battery is under-voltage guarantor
Shield module control terminal controls control source and the output at the battery back-up module charge and discharge end.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, the wherein main power source module include rectification
The input terminal of device, magnet ring, the wherein rectifier is electrically connected alternating current, and the output terminal of the rectifier is the main power source after the magnet ring
The output terminal of module.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, the wherein rectifier are Switching Power Supply.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, the wherein battery back-up module include standby
With battery, the wherein charge and discharge end of the reserve battery is the charge and discharge end of the battery back-up module.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, the wherein reserve battery are plumbic acid electricity
Pond.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, wherein the reserve battery charging module packet
Diode D5, resistance R6, resistance R7, resistance R8, field-effect transistor U1 are included, wherein diode D5 anodes are the reserve battery
The input terminal of charging module, diode D5 cathodes are electrically connected the source electrode of the field-effect transistor, resistance R6 first ends electricity
Property connect the drain electrode of the field-effect transistor, resistance R6 second ends are the reserve battery charging module output terminal, resistance R7
First end is electrically connected the grid of the field-effect transistor, and resistance R7 second ends are charge control end, and resistance R8 both ends are divided
It is not electrically connected the source electrode and grid of the field-effect transistor.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, wherein the reserve battery under-voltage protection mould
Block include diode D1, diode D2, diode D3, diode D4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Capacitance, triode, integrated circuit and relay, wherein diode D1 cathodes are electrically connected diode D2 cathodes, two pole
Pipe D1 anodes are the reserve battery under-voltage protective module first input end, and diode D2 anodes are the reserve battery under-voltage protection
The second input terminal of module, resistance R1 connect with resistance R5 after first end and diode D1 and diode D2 tie point
Connection, the second end after resistance R1 and the resistance R5 series connection are connect with the input terminal of Integrated circuit IC 1, resistance R2, this two
Pole pipe D4 and the capacitance are connected in parallel, and diode D4 plus earths, diode D4 cathodes are electrically connected the integrated circuit
The input terminal of the integrated circuit and the output terminal of the integrated circuit is electrically connected in input terminal, resistance R3 both ends, the resistance
R4 first ends are electrically connected the output terminal of the integrated circuit, and resistance R4 second ends are electrically connected the base stage of the triode, this three
The emitter ground connection of pole pipe, the collector of the triode are electrically connected diode D3 anodes, diode D3 and the relay
Input circuit be connected in parallel, diode D3 cathodes are electrically connected the charge and discharge end of the battery back-up module, the relay
Public terminal contacts are connect with the charge and discharge end of the battery back-up module, and the normally opened contact of the relay charges with the reserve battery
The output terminal connection of module.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, the wherein integrated circuit are voltage detecting
Chip.
Reserve battery under-voltage protection described in the utility model and charge-discharge circuit, wherein further including diode D6 and two poles
Pipe D7, wherein diode D6 cathodes and diode D7 cathodes are electrically connected the input terminal of the load equipment, diode D6
Anode is electrically connected the output terminal of the main power source module, and diode D7 anodes are electrically connected the charge and discharge end of the reserve battery
With the output terminal of the reserve battery charging module.
The utility model further relates to a kind of alarm controller, uses above-mentioned reserve battery under-voltage protection and charge and discharge electricity
Road provides power supply.
The utility model can cut off the power supply to load when reserve battery is under-voltage, will not because of battery over-discharge and
Damage.After main electricity restores electricity, main power source can be allowed to charge to reserve battery in time.
Description of the drawings
Fig. 1 is the function structure chart of the utility model,
Fig. 2 is the circuit diagram of the utility model.
Specific embodiment
The utility model is illustrated with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the reserve battery under-voltage protection and charge-discharge circuit include：Main power source module, reserve battery charging
Module, battery back-up module and reserve battery under-voltage protective module.
As shown in Fig. 2, lead-acid battery is as stand-by power supply, output terminal BP；AC220V alternating currents will by Switching Power Supply
AC power is converted to DC power supply, and burning voltage, output terminal MP, i.e. main power source, electricity are exported after magnet ring L3 goes interference
Pressure value is about DC27.8V；POWER ends are the input terminal of main power source or reserve battery to alarm controller load supplying；Based on CD
Power supply is the input terminal of reserve battery charging；CK-P ends are the charge control end for connecting microcontroller.
Reserve battery charging module includes diode D5, resistance R6, resistance R7, resistance R8, wherein metal-oxide-semiconductor U1, two pole
Pipe D5 anodes are the reserve battery charging module input terminal, and diode D5 cathodes are electrically connected metal-oxide-semiconductor U1 source electrodes, the resistance
R6 first ends be electrically connected the metal-oxide-semiconductor U1 drain electrode, resistance R6 second ends be the reserve battery charging module output terminal, the resistance
R7 first ends are electrically connected metal-oxide-semiconductor U1 grids, and resistance R7 second ends are charge control end, and resistance R8 both ends difference is electrical
Connect metal-oxide-semiconductor U1 source electrodes and grid.
Reserve battery under-voltage protective module includes diode D1, diode D2, diode D3, diode D4, resistance R1, electricity
Hinder R2, resistance R3, resistance R4, resistance R5, capacitance C1, triode V1, Integrated circuit IC 1 and relay JDQ1, wherein two pole
Pipe D1 cathodes are electrically connected diode D2 cathodes, and diode D1 anodes are inputted for the reserve battery under-voltage protective module first
End, diode D2 anodes are second input terminal of reserve battery under-voltage protective module, after resistance R1 connects with resistance R5
First end connect with the tie point of diode D1 and diode D2, resistance R1 connect with resistance R5 after second end with
The input terminal connection of Integrated circuit IC 1, resistance R2, diode D4 and capacitance C1 are connected in parallel, diode D4 anodes
Ground connection, diode D4 cathodes are electrically connected 1 input terminal of Integrated circuit IC, and it is integrated that this is electrically connected in resistance R3 both ends
1 input terminal of IC circuit and 1 output terminal of Integrated circuit IC, 1 ground terminal of Integrated circuit IC ground connection, resistance R4 first ends are electrical
1 output terminal of Integrated circuit IC is connected, resistance R4 second ends are electrically connected triode V1 base stages, triode V1 emitters
Ground connection, triode V1 collectors are electrically connected diode D3 anodes, diode D3 and relay JDQ1 input circuits
It is connected in parallel, diode D3 cathodes are electrically connected the battery back-up module charge and discharge end, and the common end of relay JDQ1 is touched
Point is connect with the charge and discharge end of the battery back-up module, the normally opened contact of relay JDQ1 and the reserve battery charging module
Output terminal connection.
Diode D6 and diode D7 are further included before load equipment, wherein diode D6 cathodes and diode D7 cathodes is electrical
The input terminal of the load equipment is connected, diode D6 anodes are electrically connected the output terminal of the main power source module, diode D7
Anode is electrically connected the charge and discharge end of the reserve battery and the output terminal of the reserve battery charging module.
The reserve battery under-voltage protection and charge-discharge circuit include following four situation during the work time：
Situation 1, main power source are connected, and when reserve battery is opened, main power source is powered for alarm controller, meanwhile, to standby electricity
It charges in pond.
When city electrically connects, MP ends export main electricity, by diode D6 directly to alarm controller load supplying.Meanwhile
Since the voltage at MP ends is higher than BP terminal voltages so that MP ends electric current passes through diode D1, then is divided by resistance R1, R5, R2, warp
After 5.1V zener diode D4 voltage stabilizings so that there are 5.1V control sources at the Vin ends of IC1 (HT7044) chip.IC1 chips are for low
Voltage detecting.Work as input voltage vin>During 4.4V, Vout output terminals have high level output；Work as Vin<During 4.4V, Vout outputs are
0.When Vout ends export high level, triode V1 conductings, relay JDQ1 actions, then by comparison for piezoelectric voltage BP
Value, if BP<During 22.5V, by software control CK-P end output low levels, metal-oxide-semiconductor U1 is connected, and pass through current-limiting resistance R6,
From CD ends to BP ends, it charges for reserve battery.
Situation 2：Main electric fault when stand-by power supply works normally, is loaded automatically to alarm controller by stand-by power supply and provided
Power supply.
It is alarm controller load supplying by reserve battery if mains power failure or shutdown.As BP Duan electricity Ya≤21.5V
When, it is divided by diode D2, then by R1, R5, R2, after voltage-stabiliser tube D4 voltage stabilizings, makes the input pin Vin of IC1 chips
=5.1V, the high level of Vout outputs at this time, triode V1 conductings, relay JDQ1 actions, BP ends and the conducting of CD ends, pass through two poles
Pipe D7 is to alarm controller load supplying.
Situation 3：Main electric fault, when reserve battery is under-voltage, cut-out reserve battery power supply.
Due to reserve battery continuous discharge so that BP terminal voltages reduce, and when voltage drops to below 20.5V, electric current passes through
Diode D2, the Vin after being divided by R1, R5, R2<4.4V.At this moment, the Vout ends output low level of IC1 chips, triode V1
Cut-off, relay JDQ1 are failure to actuate, and BP ends and CD ends are not turned on, i.e., reserve battery cuts the power supply that alarm controller loads
It is disconnected, play the purpose for preventing reserve battery from being damaged due to over-discharge.
Situation 4：Stand-by power supply is under-voltage protected after, if main electricity restores normal power supply, charging circuit automatically opens, is restored to
The state of situation 1.
The description and application of the utility model are illustrative, are not wishing to the scope of the utility model being limited in above-mentioned reality
It applies in example.The deformation and change of embodiments disclosed herein are possible, and those skilled in the art are come
The replacement and equivalent various parts for saying embodiment are well known.It will be apparent to those skilled in the art that not departing from this practicality
In the case of novel spirit or essential characteristics, the utility model can in other forms, structure, arrangement, ratio and use it
Its component, material and component are realized.In this way, if these modifications and variations of the present invention belong to the utility model right
It is required that and its within the scope of equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of reserve battery under-voltage protection and charge-discharge circuit, which is characterized in that including：
Main power source module, the input terminal of the main power source module are electrically connected alternating current, and the output terminal of the main power source module is electrically connected
The first input end of the input terminal of load equipment, the input terminal of reserve battery charging module and reserve battery under-voltage protective module；
The reserve battery charging module, the output terminal of the reserve battery charging module are electrically connected filling, putting for battery back-up module
Electric end；
The battery back-up module, the charge and discharge end of the battery back-up module is electrically connected the input terminal of the load equipment and this is standby
With the second input terminal of battery under-voltage protective module；
The reserve battery under-voltage protective module of under-voltage protection is provided for the battery back-up module, the reserve battery under-voltage protection mould
Block control terminal controls control source and the output at the battery back-up module charge and discharge end.
2. reserve battery under-voltage protection as described in claim 1 and charge-discharge circuit, which is characterized in that the main power source module packet
Rectifier, magnet ring are included, the wherein input terminal of the rectifier is electrically connected alternating current, and the output terminal of the rectifier is after the magnet ring should
The output terminal of main power source module.
3. reserve battery under-voltage protection as claimed in claim 2 and charge-discharge circuit, which is characterized in that the rectifier is switch
Power supply.
4. reserve battery under-voltage protection as described in claim 1 and charge-discharge circuit, which is characterized in that the battery back-up module
Including reserve battery, the wherein charge and discharge end of the reserve battery is the charge and discharge end of the battery back-up module.
5. reserve battery under-voltage protection as claimed in claim 4 and charge-discharge circuit, which is characterized in that the reserve battery is lead
Sour battery.
6. reserve battery under-voltage protection as described in claim 1 and charge-discharge circuit, which is characterized in that the reserve battery charges
Module includes diode D5, resistance R6, resistance R7, resistance R8, field-effect transistor U1, and wherein diode D5 anodes are standby for this
With the input terminal of battery charging module, diode D5 cathodes are electrically connected the source electrode of field-effect transistor U1, resistance R6
First end is electrically connected the drain electrode of field-effect transistor U1, and resistance R6 second ends are exported for the reserve battery charging module
End, resistance R7 first ends are electrically connected the grid of field-effect transistor U1, and resistance R7 second ends are charge control end, should
The source electrode and grid of the field-effect transistor is electrically connected in resistance R8 both ends.
7. reserve battery under-voltage protection as described in claim 1 and charge-discharge circuit, which is characterized in that the reserve battery is under-voltage
Protection module include diode D1, diode D2, diode D3, diode D4, resistance R1, resistance R2, resistance R3, resistance R4,
Resistance R5, capacitance C1, triode V1, Integrated circuit IC 1 and relay JDQ1, wherein diode D1 cathodes be electrically connected this two
Pole pipe D2 cathodes, diode D1 anodes are the reserve battery under-voltage protective module first input end, and diode D2 anodes are
Second input terminal of reserve battery under-voltage protective module, resistance R1 connect with resistance R5 after first end and diode D1
Connected with the tie point of diode D2, resistance R1 connect with resistance R5 after second end and Integrated circuit IC 1 input terminal
Connection, resistance R2, diode D4 and capacitance C1 are connected in parallel, diode D4 plus earths, diode D4 cathodes
The input terminal of the Integrated circuit IC 1 is electrically connected, resistance R3 both ends are electrically connected the input terminal of the integrated circuit and are somebody's turn to do
The output terminal of integrated circuit, resistance R4 first ends are electrically connected the output terminal of the integrated circuit, and resistance R4 second ends are electrical
The base stage of triode V1, the emitter ground connection of the triode are connected, the collector of the triode is electrically connected diode D3
Anode, diode D3 and the input circuit of the relay are connected in parallel, and diode D3 cathodes are electrically connected the reserve battery
The charge and discharge end of module, the public terminal contacts of the relay are connect with the charge and discharge end of the battery back-up module, the relay
Normally opened contact connect with the output terminal of the reserve battery charging module.
8. reserve battery under-voltage protection as claimed in claim 7 and charge-discharge circuit, which is characterized in that the integrated circuit is electricity
Press detection chip.
9. reserve battery under-voltage protection as described in claim 1 and charge-discharge circuit, which is characterized in that further include diode D6
With diode D7, wherein diode D6 cathodes and diode D7 cathodes is electrically connected the input terminal of the load equipment, this two
Pole pipe D6 anodes are electrically connected the output terminal of the main power source module, diode D7 anodes be electrically connected the filling of the reserve battery,
The output terminal of discharge end and the reserve battery charging module.
10. a kind of alarm controller, which is characterized in that by such as claim 1-9 any one of them reserve battery under-voltage protection
And charge-discharge circuit provides power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721583754.XU CN207588436U (en) | 2017-11-23 | 2017-11-23 | A kind of reserve battery under-voltage protection and charge-discharge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721583754.XU CN207588436U (en) | 2017-11-23 | 2017-11-23 | A kind of reserve battery under-voltage protection and charge-discharge circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207588436U true CN207588436U (en) | 2018-07-06 |
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ID=62733035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721583754.XU Active CN207588436U (en) | 2017-11-23 | 2017-11-23 | A kind of reserve battery under-voltage protection and charge-discharge circuit |
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| Country | Link |
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| CN (1) | CN207588436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260395A (en) * | 2020-11-02 | 2021-01-22 | 上海云衡科技有限公司 | Power switch circuit device and control method |
-
2017
- 2017-11-23 CN CN201721583754.XU patent/CN207588436U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260395A (en) * | 2020-11-02 | 2021-01-22 | 上海云衡科技有限公司 | Power switch circuit device and control method |
| CN112260395B (en) * | 2020-11-02 | 2025-03-04 | 上海云怀科技有限公司 | Power switch circuit device and control method |
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