CN202749894U - Emergency power supply capable of indicating undervoltage of storage battery - Google Patents
Emergency power supply capable of indicating undervoltage of storage battery Download PDFInfo
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- CN202749894U CN202749894U CN2012204806244U CN201220480624U CN202749894U CN 202749894 U CN202749894 U CN 202749894U CN 2012204806244 U CN2012204806244 U CN 2012204806244U CN 201220480624 U CN201220480624 U CN 201220480624U CN 202749894 U CN202749894 U CN 202749894U
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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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Abstract
The utility model provides an emergency power supply capable of indicating undervoltage of a storage battery. The emergency power supply comprises a 12V direct current power supply, a multivibrator and frequency adjustment circuit, a push-pull power amplification circuit, a booster circuit, a square wave voltage shaping circuit, a voltage detection circuit and an undervoltage indicating circuit, and is characterized in that the type of an astable or monostable multivibrator IC1 in the multivibrator and frequency adjustment circuit is CD4047. A test shows that if a power supply line fails suddenly, a temporary power supply inversion mode can be used. The emergency power supply capable of indicating undervoltage of the storage battery is suitable for low-power electric appliances such as a fluorescent lamp, an energy-saving lamp, a notebook computer and an electronic device, can meet the requirement on emergency lighting for short-time power failure of the power supply line and is also suitable for emergency lighting or fire protection emergency power supplies in various public places; a 12V and 10AH maintenance-free storage battery is used for supplying power; and the emergency power supply can work for more than 1.2 hours under the condition of full charge.
Description
Technical field
The utility model belongs to electronic technology and emergency power supply technical field, is the emergency power supply that under-voltage indication is arranged about a kind of storage battery.
Background technology
Emergency power supply is the stand-by power supply that is totally independent of outside the utility grid.Emergency power supply commonly used mainly contains three kinds: be independent of the generating set of mains supply, such as diesel engine generator; Special supply line outside the circuit commonly used is commonly called as double circuit power supply; With the inverter of storage battery as the making of application of power inversion transformation technique.Practice shows: supply line has a power failure suddenly, utilizes the interim power supply of inverting more real feasible.
Storage battery described in the utility model has the emergency power supply of under-voltage indication to be applicable to the low-power electrical devices such as fluorescent lamp, electricity-saving lamp, notebook computer, electronic instrument, can satisfy the emergency lighting after supply line's short time has a power failure, also be applicable to emergency lighting or the fire-fighting emergency power supply of various small-sized public places; Select 12V, the power supply of 10AH maintenance free cell, this emergency power supply fully loaded operating time was greater than 1.2 hours.
Below describe emergency power supply that storage battery described in the utility model has a under-voltage indication related relevant technologies content in implementation process in detail.
The utility model content
Goal of the invention and beneficial effect: emergency power supply is the stand-by power supply that is totally independent of outside the utility grid.Emergency power supply commonly used mainly contains three kinds: be independent of the generating set of mains supply, such as diesel engine generator; Special supply line outside the circuit commonly used is commonly called as double circuit power supply; With the inverter of storage battery as the making of application of power inversion transformation technique.Practice shows: supply line has a power failure suddenly, utilizes the interim power supply of inverting more real feasible.Storage battery described in the utility model has the emergency power supply of under-voltage indication to be applicable to the low-power electrical devices such as fluorescent lamp, electricity-saving lamp, notebook computer, electronic instrument, can satisfy the emergency lighting after supply line's short time has a power failure, also be applicable to emergency lighting or the fire-fighting emergency power supply of various small-sized public places; Select 12V, the power supply of 10AH maintenance free cell, this emergency power supply fully loaded operating time was greater than 1.2 hours.
The circuit working principle: it is that the inversion of storage battery 12V direct voltage is become the 220V alternating voltage that storage battery has the emergency power supply of under-voltage indication.Accompanying drawing 1 left part is the battery tension indicating circuit, consists of battery tension by NPN transistor VT1 and related elements and detects and under-voltage indicating circuit.When charge in batteries voltage surpassed 10.5V, LED began luminous, and the electric weight of expression storage battery can continue to use; When battery tension is reduced to when being lower than 10.5V, LED extinguishes, and shows that accumulator electric-quantity discharges, and needs charge to it immediately.
Technical scheme: storage battery has the emergency power supply of under-voltage indication, it comprises 12V DC power supply, multivibrator and frequency adjustment circuit, push-pull power amplifier circuit, booster circuit and square-wave voltage shaping circuit, voltage detecting circuit and under-voltage indicating circuit is characterized in that:
Multivibrator and frequency adjustment circuit: by without stable state/one-shot multivibrator IC1, capacitor C 1 and potentiometer RP2 form, be CD4047 without the model that stable state/one-shot multivibrator IC1 selects, the 1st pin without stable state/one-shot multivibrator IC1 connects without the 3rd pin of stable state/one-shot multivibrator IC1 and an end and the movable end thereof of potentiometer RP2 by capacitor C 1, connect the other end of potentiometer RP2 without stable state/the 2nd pin of one-shot multivibrator IC1, the 4th pin without stable state/one-shot multivibrator IC1, the 5th pin, the anodal VCC of the 6th pin and the 14th pin connection circuit is without the 7th pin of stable state/one-shot multivibrator IC1, the 8th pin, the 9th pin and the 12nd pin connection circuit ground GND;
Push-pull power amplifier circuit: the grid that meets N channel enhancement field effect transistor VT3 without the 10th pin of stable state/one-shot multivibrator IC1 by resistance R 3, the drain electrode of N channel enhancement field effect transistor VT2 connects the Same Name of Ends of step-up transformer T winding L 1, the anodal VCC of the Same Name of Ends connection circuit of the different name end of step-up transformer T winding L 1 and the winding L 2 of step-up transformer T, connect the grid of N channel enhancement field effect transistor VT3 by resistance R 4 without the 11st pin of stable state/one-shot multivibrator IC1, the drain electrode of N channel enhancement field effect transistor VT3 connects the different name end of step-up transformer T winding L 2, the source electrode connection circuit ground GND of the source electrode of N channel enhancement field effect transistor VT2 and N channel enhancement field effect transistor VT3;
Booster circuit and square-wave voltage shaping circuit: winding L 3, capacitor C 2 and 220V supply socket CZ by step-up transformer T form, and the two ends of step-up transformer T winding L 3 are connected on respectively the two ends of capacitor C 2 and the two ends of 220V supply socket CZ.
Voltage detecting circuit and under-voltage indicating circuit: by linear potentiometer RP1, resistance R 1, voltage stabilizing didoe DW, NPN transistor VT1 and LED, resistance R 2 forms, the end of linear potentiometer RP1 is by the anodal VCC of resistance R 1 connection circuit, the negative pole of the activity termination voltage stabilizing didoe DW of linear potentiometer RP1, the other end connection circuit ground GND of linear potentiometer RP1, the base stage of NPN transistor VT1 connects the positive pole of voltage stabilizing didoe DW, the collector electrode of NPN transistor VT1 is by the negative pole of resistance R 2 sending and receiving optical diode LED, the anodal VCC of the anodal connection circuit of LED, the emitter connection circuit ground GND of NPN transistor VT1.
The anodal VCC of 12V dc power anode connection circuit, the negative pole of 12V DC power supply links to each other with circuit ground GND.
Description of drawings
Embodiment
Circuit working schematic diagram and description of drawings that the emergency power supply of under-voltage indication is arranged according to storage battery shown in the accompanying drawing 1, and according to the annexation between the components and parts in the described circuit of utility model content, and the components and parts technical parameter described in the execution mode requires to implement to realize the utility model.
The selection of components and parts and technical parameter thereof
IC1 is without stable state/one-shot multivibrator, and the model of selecting is CD4047;
VT1 is NPN transistor, and the model of selecting is 2SC9013;
VT2～VT3 is N channel enhancement field effect transistor, and the model of selecting is IRFZ44;
DW is voltage stabilizing didoe, and technical parameter is 9V, 0.5W;
LED is light-emitting diode, selects ￠ 5 red light emitting diodes;
Resistance is selected the metalfilmresistor of 1/4W, and the resistance of resistance R 1 is 10k Ω; The resistance of resistance R 2 is 1.5k Ω; The resistance of resistance R 3 is 100 Ω; The resistance of resistance R 4 is 100 Ω;
RP1 is linear potentiometer, and its resistance is 4.7k Ω; RP2 is potentiometer, and its resistance is 22k Ω;
C1 is electric capacity of the dacron, and capacity is 0.22 μ F/40V; C2 is electric capacity of the dacron, and capacity is 0.1 μ F/400V;
The 12V DC current source is selected 12V, 10AH maintenance free cell;
CZ is the 220V supply socket, and technical parameter is 3A/250V.
Circuit production main points and circuit debugging
The making of step-up transformer T: the magnetic core of step-up transformer T is selected EI type ferrite magnetic core or ring type magnetic core, the cardboard of winding frame available thickness 0.8mm, and winding L 1, winding L 2 are all selected ￠ 0.8mm enamelled wire, and the coiling number of turns is 45 circles; Winding L 3 is selected ￠ 0.45mm enamelled wire, and the coiling number of turns is 700 circles; Note the sign of winding L 1, winding L 2 Same Name of Ends; Require armature winding and boost to want the liner insulating material between the winding;
N channel enhancement field effect transistor VT2～VT3 is high-power components, must install radiator additional during use;
As long as select components and parts good, the components and parts welded and installed is errorless, connects the load of 50～80W in 220V supply socket CZ, and circuitry can be heard squeak after connecting the 12V DC power supply, and this shows starting of oscillation of multivibrator circuit; If circuit does not have starting of oscillation, the two ends reversal connection of winding L 1 or winding L 2 can be tried it;
Potentiometer RP2 is used for the frequency of oscillation of Circuit tuning, and the frequency of oscillation that suitably improves multivibrator circuit is conducive to improve the conversion efficiency of emergency power supply, but the circuit oscillation frequency should require≤55Hz, otherwise might have influence on the normal use of some electrical appliance;
The utility model is when output no-load, and its output voltage should be higher than 250V;
The 220V alternating current of emergency power supply output can be powered to the following electrical appliance of power 80W temporarily.
Claims (2)
1. a storage battery has the emergency power supply of under-voltage indication, it comprises 12V DC power supply, multivibrator and frequency adjustment circuit, push-pull power amplifier circuit, booster circuit and square-wave voltage shaping circuit, voltage detecting circuit and under-voltage indicating circuit is characterized in that:
Described multivibrator and frequency adjustment circuit are by without stable state/one-shot multivibrator IC1, capacitor C 1 and potentiometer RP2 form, be CD4047 without the model that stable state/one-shot multivibrator IC1 selects, the 1st pin without stable state/one-shot multivibrator IC1 connects without the 3rd pin of stable state/one-shot multivibrator IC1 and an end and the movable end thereof of potentiometer RP2 by capacitor C 1, connect the other end of potentiometer RP2 without stable state/the 2nd pin of one-shot multivibrator IC1, the 4th pin without stable state/one-shot multivibrator IC1, the 5th pin, the anodal VCC of the 6th pin and the 14th pin connection circuit is without the 7th pin of stable state/one-shot multivibrator IC1, the 8th pin, the 9th pin and the 12nd pin connection circuit ground GND;
Connect the grid of N channel enhancement field effect transistor VT3 in the described push-pull power amplifier circuit by resistance R 3 without the 10th pin of stable state/one-shot multivibrator IC1, the drain electrode of N channel enhancement field effect transistor VT2 connects the Same Name of Ends of step-up transformer T winding L 1, the anodal VCC of the Same Name of Ends connection circuit of the different name end of step-up transformer T winding L 1 and the winding L 2 of step-up transformer T, connect the grid of N channel enhancement field effect transistor VT3 by resistance R 4 without the 11st pin of stable state/one-shot multivibrator IC1, the drain electrode of N channel enhancement field effect transistor VT3 connects the different name end of step-up transformer T winding L 2, the source electrode connection circuit ground GND of the source electrode of N channel enhancement field effect transistor VT2 and N channel enhancement field effect transistor VT3;
Described booster circuit and square-wave voltage shaping circuit are comprised of winding L 3, capacitor C 2 and the 220V supply socket CZ of step-up transformer T, and the two ends of step-up transformer T winding L 3 are connected on respectively the two ends of capacitor C 2 and the two ends of 220V supply socket CZ;
Described voltage detecting circuit and under-voltage indicating circuit are by linear potentiometer RP1, resistance R 1, voltage stabilizing didoe DW, NPN transistor VT1 and LED, resistance R 2 forms, the end of linear potentiometer RP1 is by the anodal VCC of resistance R 1 connection circuit, the negative pole of the activity termination voltage stabilizing didoe DW of linear potentiometer RP1, the other end connection circuit ground GND of linear potentiometer RP1, the base stage of NPN transistor VT1 connects the positive pole of voltage stabilizing didoe DW, the collector electrode of NPN transistor VT1 is by the negative pole of resistance R 2 sending and receiving optical diode LED, the anodal VCC of the anodal connection circuit of LED, the emitter connection circuit ground GND of NPN transistor VT1.
2. storage battery according to claim 1 has the emergency power supply of under-voltage indication, it is characterized in that: the anodal VCC of the anodal connection circuit of 12V DC power supply, the negative pole of 12V DC power supply links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204806244U CN202749894U (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204806244U CN202749894U (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
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| Publication Number | Publication Date |
|---|---|
| CN202749894U true CN202749894U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204806244U Expired - Fee Related CN202749894U (en) | 2012-09-20 | 2012-09-20 | Emergency power supply capable of indicating undervoltage of storage battery |
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| Country | Link |
|---|---|
| CN (1) | CN202749894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106339057A (en) * | 2016-08-23 | 2017-01-18 | 陕西理工大学 | Computer information multivibrator |
-
2012
- 2012-09-20 CN CN2012204806244U patent/CN202749894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106339057A (en) * | 2016-08-23 | 2017-01-18 | 陕西理工大学 | Computer information multivibrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130920 |