CN103986126A - Low-voltage control protection device for storage batteries - Google Patents
Low-voltage control protection device for storage batteries Download PDFInfo
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- CN103986126A CN103986126A CN201410248535.0A CN201410248535A CN103986126A CN 103986126 A CN103986126 A CN 103986126A CN 201410248535 A CN201410248535 A CN 201410248535A CN 103986126 A CN103986126 A CN 103986126A
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Abstract
The invention discloses a low-voltage control protection device for storage batteries. The low-voltage control protection device comprises a shell, a voltage meter, an ON button, an OFF button, an anode input terminal, a cathode input terminal, an anode output terminal, a cathode output terminal and a control circuit board, wherein the voltage meter, the ON button and the OFF button are arranged on a shell panel; the anode input terminal and the cathode input terminal are arranged on one side of the shell; the anode output terminal and the cathode output terminal are arranged on the other side of the shell; the control circuit board which is electrically connected with the voltage meter, the start button, the closure button, the anode input terminal, the cathode input terminal, the anode output terminal and the cathode output terminal is arranged in the shell. The low-voltage control protection device for storage batteries is reasonable in design, simple in structure, reliable in action and high in practicality. The device is connected between electric equipment and a storage battery, the discharge voltage of the storage battery can be automatically detected, and when the discharge voltage is lower than a design value, the electric equipment can be automatically cut off, and the storage battery is effectively prevented from being damaged due to overdischarge.
Description
Technical field
The present invention relates to a kind of Storage battery protecting device, be specifically related to a kind of storage battery low-voltage control protective unit.
Background technology
Battery overdischarge voltage design load is 10.8V, and when it discharges, voltage drop, to 10.8V, should stop electric discharge, as continued, uses and can cause overdischarge, when serious, can damage storage battery.At present, be applied in product on equipment, that can automatically detect protection storage battery and not yet have shaped article.
Summary of the invention
Object of the present invention is exactly the defect existing for prior art, and a kind of storage battery low-voltage control protective unit is provided.
Its technical scheme is: storage battery low-voltage control protective unit, comprise housing, voltmeter, release the button, X button, electrode input end, negative input, cathode output end, cathode output end and control circuit board, in the middle of the top panel top of described housing, be provided with voltmeter, voltmeter bottom is provided with releases the button and X button, one sidepiece of housing is provided with electrode input end and negative input, the other side of housing is provided with cathode output end and cathode output end, in housing, be provided with and voltmeter, release the button, X button, electrode input end, negative input, the control circuit board that cathode output end and cathode output end are electrically connected to.
Wherein, described housing is for being made box typed structure empty in rectangle by non-conducting material.Described control circuit board is by voltage stabilizing didoe, the first resistance, the second resistance, the 3rd resistance, the first triode, the second triode, relay and diode form, one end of described electrode input end and relay, the negative pole of diode with and one end of relay contact be connected, one end of the other end of relay contact and the first resistance, the negative pole of voltage stabilizing didoe, the positive pole of voltmeter and cathode output end are connected, and the positive pole of voltage stabilizing didoe is by one end of the second resistance and the 3rd resistance, the base stage of one end of X button and the first triode is connected, the collector electrode of the first triode is connected with the other end of the first resistance, the emitter of the first triode is connected with the base stage of the second triode, the collector electrode of the second triode and the other end of relay, one end anodal and that release the button of diode is connected, the other end of described negative input and the 3rd resistance, release the button the other end, the other end of X button, the emitter of the second triode, the negative pole of voltmeter and cathode output end are connected.The voltage stabilizing value of described voltage stabilizing didoe is 4.2V, 9.1V or 21V.Described voltmeter is needle dc voltmeter.
The present invention compared with prior art, has the following advantages: reasonable in design, simple in structure, reliable in action, practical.It is connected between power consumption equipment and storage battery, can automatically detect the discharge voltage of storage battery, when discharge voltage is during lower than design load, can automatically disconnect power consumption equipment, effectively protects storage battery can not damage because of overdischarge.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the circuit theory diagrams of an embodiment of the present invention.
Embodiment
With reference to Fig. 1; a kind of storage battery low-voltage control protective unit; comprise housing 1, voltmeter 2, release the button 3, X button 4, electrode input end 5, negative input 6, cathode output end 7, cathode output end 8 and control circuit board 9, housing 1 is for being made box typed structure empty in rectangle by non-conducting material.In the middle of the top panel top of housing 1, be provided with voltmeter 2, voltmeter 2 bottoms are provided with releases the button 3 and X button 4, one sidepiece of housing 1 is provided with electrode input end 5 and negative input 6, the other side of housing 1 is provided with cathode output end 7 and cathode output end 8, is provided with voltmeter 2, releases the button 3, X button 4, electrode input end 55, negative input 6, cathode output end 7 and cathode output end 8 control circuit boards that are electrically connected to 9 in housing 1.
With reference to Fig. 2, the voltage stabilizing didoe DW that control circuit board is 9.1V by voltage stabilizing value, the first resistance R 1 of 470-510 Ω, the second resistance R 2 of 100-200 Ω, the 3rd resistance R 3 of 1-3K Ω, model is the first triode T1 of 9014, model is the second triode T2 of 8050, relay J and model are that the diode D of 1N4001 forms, relay J with 4123 or the contact current such as T73 be greater than the miniature electro-magnetic relay of 5A, one end of electrode input end 5 and relay J, the negative pole of diode D with and one end of relay contact J-1 be connected, the J-1 other end of relay contact and one end of the first resistance R 1, the negative pole of voltage stabilizing didoe DW, the positive pole of voltmeter 2 and cathode output end 7 are connected, and the positive pole of voltage stabilizing didoe DW is by one end of the second resistance R 2 and the 3rd resistance R 3, the base stage of one end of X button 4 and the first triode T1 is connected, the collector electrode of the first triode T1 is connected with the other end of the first resistance R 1, the emitter of the first triode T1 is connected with the base stage of the second triode T2, the second collector electrode of triode T2 and the other end of relay J, diode D anodal and 3 the one end of releasing the button are connected, the other end of negative input 6 and the 3rd resistance R 3, release the button 3 the other end, the other end of X button 4, the emitter of the second triode T2, the negative pole of voltmeter 2 and cathode output end 8 are connected.Described voltage stabilizing didoe.Voltmeter is needle dc voltmeter, selects 91L16,20V voltmeter head.When storage battery is 12V, it is 9.1V that voltage stabilizing didoe DW requires voltage stabilizing value, otherwise overdischarge voltage is by the 10.8V that is not design load.
Operation principle: when needs electricity consumption.Press and release the button 3, now relay J coil obtains electric adhesive, and relay contact J-1 is closed simultaneously connects, and the positive voltage of storage battery makes circuit obtain electric work from electrode input end 5 through relay contact J-1.When the breakdown conducting of voltage stabilizing didoe DW during higher than 10.8V of the battery tension of 12V, triode T1, the conducting of T2 positively biased, now relay J maintains self-insurance conducting state, even if unclamp, releases the button 3, and circuit is still in normal operating conditions.When needs powered-down, with hand, press X button 4, T1 base earth now, T1, T2 synchronously end, and relay J disconnects, and closes tester in power-down state.
When the discharge voltage of the storage battery of 12V is during lower than 10.8V, should stop electric discharge, in case overdischarge damages storage battery.This function is completed by Undervoltage detection circuit DW, R2, R3 and executive circuit T1, T2, R1 and relay J.When the battery tension of 12V during lower than 10.8V, DW oppositely end, thereby cause T1, T1 cut-off, relay J power-off, relay contact J-1 disconnects and has reached auto-breaking, the object of protection battery overdischarge.While being 6V or 24V as storage battery, voltage stabilizing didoe DW requires voltage stabilizing value to should be 4.2V or 21V.
The present invention is reasonable in design, simple in structure, reliable in action, practical.It is connected between power consumption equipment and storage battery, can automatically detect the discharge voltage of storage battery, when discharge voltage is during lower than design load, can automatically disconnect power consumption equipment, effectively protects storage battery can not damage because of overdischarge.
Claims (5)
1. storage battery low-voltage control protective unit, comprise housing, voltmeter, release the button, X button, electrode input end, negative input, cathode output end, cathode output end and control circuit board, it is characterized in that: in the middle of the top panel top of described housing, be provided with voltmeter, voltmeter bottom is provided with releases the button and X button, one sidepiece of housing is provided with electrode input end and negative input, the other side of housing is provided with cathode output end and cathode output end, in housing, be provided with and voltmeter, release the button, X button, electrode input end, negative input, the control circuit board that cathode output end and cathode output end are electrically connected to.
2. storage battery low-voltage control protective unit according to claim 1, is characterized in that: described housing is for being made box typed structure empty in rectangle by non-conducting material.
3. storage battery low-voltage control protective unit according to claim 1, is characterized in that: described control circuit board is by voltage stabilizing didoe, the first resistance, the second resistance, the 3rd resistance, the first triode, the second triode, relay and diode form, one end of described electrode input end and relay, the negative pole of diode with and one end of relay contact be connected, one end of the other end of relay contact and the first resistance, the negative pole of voltage stabilizing didoe, the positive pole of voltmeter and cathode output end are connected, and the positive pole of voltage stabilizing didoe is by one end of the second resistance and the 3rd resistance, the base stage of one end of X button and the first triode is connected, the collector electrode of the first triode is connected with the other end of the first resistance, the emitter of the first triode is connected with the base stage of the second triode, the collector electrode of the second triode and the other end of relay, one end anodal and that release the button of diode is connected, the other end of described negative input and the 3rd resistance, release the button the other end, the other end of X button, the emitter of the second triode, the negative pole of voltmeter and cathode output end are connected.
4. storage battery low-voltage control protective unit according to claim 3, is characterized in that: the voltage stabilizing value of described voltage stabilizing didoe is 4.2V, 9.1V or 21V.
5. according to the storage battery low-voltage control protective unit described in claim 1 or 3, it is characterized in that: described voltmeter is needle dc voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248535.0A CN103986126B (en) | 2014-06-06 | 2014-06-06 | Battery low-voltage control protective unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248535.0A CN103986126B (en) | 2014-06-06 | 2014-06-06 | Battery low-voltage control protective unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103986126A true CN103986126A (en) | 2014-08-13 |
| CN103986126B CN103986126B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410248535.0A Expired - Fee Related CN103986126B (en) | 2014-06-06 | 2014-06-06 | Battery low-voltage control protective unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729782A (en) * | 2019-10-22 | 2020-01-24 | 深圳市聚芯影像有限公司 | Method and device for automatically identifying battery voltage for charger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816474A (en) * | 1981-07-20 | 1983-01-31 | Matsushita Electric Ind Co Ltd | Over-discharge preventer |
| CN87201161U (en) * | 1987-03-23 | 1987-11-25 | 何家华 | Automatic control device for storage battery charging or discharging |
| CN200953479Y (en) * | 2006-09-13 | 2007-09-26 | 曾天锐 | Energy-saving adaptive constant current charging machine |
| CN101752828A (en) * | 2008-12-05 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Low-voltage protection device |
| CN102723694A (en) * | 2012-07-03 | 2012-10-10 | 洪珍 | Overvoltage and undervoltage protective device for power supply voltage |
| CN103414165A (en) * | 2013-06-25 | 2013-11-27 | 常州市俊宏电器厂 | Storage battery discharge protection device |
-
2014
- 2014-06-06 CN CN201410248535.0A patent/CN103986126B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816474A (en) * | 1981-07-20 | 1983-01-31 | Matsushita Electric Ind Co Ltd | Over-discharge preventer |
| CN87201161U (en) * | 1987-03-23 | 1987-11-25 | 何家华 | Automatic control device for storage battery charging or discharging |
| CN200953479Y (en) * | 2006-09-13 | 2007-09-26 | 曾天锐 | Energy-saving adaptive constant current charging machine |
| CN101752828A (en) * | 2008-12-05 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Low-voltage protection device |
| CN102723694A (en) * | 2012-07-03 | 2012-10-10 | 洪珍 | Overvoltage and undervoltage protective device for power supply voltage |
| CN103414165A (en) * | 2013-06-25 | 2013-11-27 | 常州市俊宏电器厂 | Storage battery discharge protection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729782A (en) * | 2019-10-22 | 2020-01-24 | 深圳市聚芯影像有限公司 | Method and device for automatically identifying battery voltage for charger |
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| CN103986126B (en) | 2017-11-14 |
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