CN201312124Y - Protection circuit for preventing accumulator charging and reversal connection - Google Patents
Protection circuit for preventing accumulator charging and reversal connection Download PDFInfo
- Publication number
- CN201312124Y CN201312124Y CNU2008202292926U CN200820229292U CN201312124Y CN 201312124 Y CN201312124 Y CN 201312124Y CN U2008202292926 U CNU2008202292926 U CN U2008202292926U CN 200820229292 U CN200820229292 U CN 200820229292U CN 201312124 Y CN201312124 Y CN 201312124Y
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- circuit
- reversal connection
- accumulator
- charge
- relay
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to accumulators, in particular to an accumulator protection circuit, and is the protection circuit for preventing accumulator charging and reversal connection. The protection circuit comprises a power circuit and an accumulator interface, and is characterized in that the front end of the accumulator interface is connected with a polarity discrimination control circuit, and a relay is connected between the power circuit and the accumulator interface. The utility model has the advantages of effectively controlling the current changes of an instantaneous circuit when accumulators charge, reducing the influence of other elements in the circuit when accumulators charge, when the accumulator is in reversal connection, the relay does not adhere, the circuit does not work, which avoids the converse voltage of accumulators from damaging other elements, thereby playing a protection role for the entire circuit and sending indicator signals to warn operators at the same time.
Description
Technical field
The utility model belongs to storage battery, especially belongs to secondary battery protection circuit.
Background technology
The existing storage battery charging circuit as shown in Figure 1, when reverse connection of accumulator, the diode D in the circuit will be burnt out, and generally is connected to fuse 5 for head it off in circuit at present, in case reverse connection of accumulator, blowout need be changed fuse again, and, because the place ahead circuit will realize that other function is connected to capacity cell unavoidably, accumulator positive connects moment, entire circuit is produced instantaneous large-current impact, and the life-span of other components and parts is caused adverse influence.
Summary of the invention
The utility model purpose is to overcome above-mentioned shortcoming, and a kind of protective circuit that prevents the charge in batteries reversal connection that other components and parts are not influenced by it when charge in batteries is provided.
The technical scheme that the utility model adopted is a kind of protective circuit that prevents the charge in batteries reversal connection; comprise power circuit, storage battery interface; its main points are, are connected to the polarity discriminating control circuit at the front end of storage battery interface, are connected with relay between power circuit and storage battery interface.
Operation principle of the present utility model is: when storage battery is linked to each other with circuit, link to each other with power circuit by the polarity discriminating control circuit power circuit is controlled adjustment, ability is with relay adhesive conducting when the relay both end voltage differs very little, therefore, it is very little that the connection of storage battery produces impulse current to entire circuit, and when reverse connection of accumulator, the polarity discriminating control circuit is not exported, not adhesive of relay, circuit is not worked.
Also can in the polarity discriminating control circuit, increase a clearing lamp or buzzer.
Advantage of the present utility model is; the electric current of having controlled charge in batteries moment circuit effectively changes; reduce the influence of charge in batteries to other element in the circuit; when reverse connection of accumulator; not adhesive of relay, circuit is not worked, and has avoided the injury of the opposite voltage of storage battery to other element; thereby entire circuit is played a protective role, send index signal simultaneously and remind operating personnel.
Description of drawings
Fig. 1 is an existing storage battery charging circuit schematic diagram
Fig. 2 is a principle schematic of the present utility model
1 power circuit, 2 polarity discriminating control circuits, 3 relays, 4 storage battery interfaces, 5 fuses wherein
Embodiment
Below in conjunction with view the utility model is described in detail
As shown in Figure 2; a kind of protective circuit that prevents the charge in batteries reversal connection; comprise power circuit 1, storage battery interface 4; front end at storage battery interface 4 is connected to polarity discriminating control circuit 2; one clearing lamp or buzzer are arranged in the polarity discriminating control circuit 2; be connected with relay 3 between power circuit 1 and storage battery interface 4, relay 3 can be controllable silicon or for contactor or for field effect transistor or for IGBT.Power circuit 1 can be the switching power supply circuit, also can be linear stabilized power supply, also can be thyristor voltage stabilized source.The course of work of the present utility model is: when storage battery and storage battery interface join, the polarity discriminating control circuit is according to the requirement of setting, measure the voltage of storage battery and the voltage of power circuit output, when satisfying condition, output signal makes power circuit to storage battery power supply with control relay J action; When condition does not satisfy (reverse connection of accumulator), the polarity discriminating circuit will not output signal to relay 3, relay is failure to actuate, circuit is not worked, so circuit is not exerted an influence, provide index signal (clearing lamp is bright or buzzer loud, but also the two possesses simultaneously) simultaneously, to remind operating personnel.
Claims (4)
1, a kind of protective circuit that prevents the charge in batteries reversal connection; comprise power circuit (1), storage battery interface (4); it is characterized in that, be connected to polarity discriminating control circuit (2), between power circuit (1) and storage battery interface (4), be connected with relay (3) at the front end of storage battery interface (4).
2, the protective circuit that prevents the charge in batteries reversal connection according to claim 1 is characterized in that, relay (3) can be controllable silicon or for contactor or for field effect transistor or for IGBT.
3, the protective circuit that prevents the charge in batteries reversal connection according to claim 1 is characterized in that, the polarity discriminating control circuit has a clearing lamp or buzzer in (2).
4, the protective circuit that prevents the charge in batteries reversal connection according to claim 1 is characterized in that, power circuit (1) can be the switching power supply circuit, also can be linear stabilized power supply, also can be thyristor voltage stabilized source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202292926U CN201312124Y (en) | 2008-12-09 | 2008-12-09 | Protection circuit for preventing accumulator charging and reversal connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202292926U CN201312124Y (en) | 2008-12-09 | 2008-12-09 | Protection circuit for preventing accumulator charging and reversal connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201312124Y true CN201312124Y (en) | 2009-09-16 |
Family
ID=41109379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202292926U Expired - Fee Related CN201312124Y (en) | 2008-12-09 | 2008-12-09 | Protection circuit for preventing accumulator charging and reversal connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201312124Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826724A (en) * | 2010-03-09 | 2010-09-08 | 海洋王照明科技股份有限公司 | Anti-reverse connection circuit of direct current power supply |
| CN101888109A (en) * | 2010-07-20 | 2010-11-17 | 衡阳中微科技开发有限公司 | Storage battery charge control circuit adopting two-way reverse connecting protection |
| CN102142681A (en) * | 2010-12-23 | 2011-08-03 | 聚信科技有限公司 | Method and device for preventing input reverse-connection damage |
| CN102545199A (en) * | 2010-12-30 | 2012-07-04 | 英飞凌科技股份有限公司 | On-board power supply protection |
| CN102923076A (en) * | 2012-10-26 | 2013-02-13 | 常州能动电子科技有限公司 | Small vehicle-mounted power supply |
| CN103208793A (en) * | 2013-04-17 | 2013-07-17 | 大连尚能科技发展有限公司 | Reverse connection prevention circuit for direct current power supply |
| WO2013159580A1 (en) * | 2012-04-25 | 2013-10-31 | Dai Alex | Vehicle emergency rescue device |
| CN103390883A (en) * | 2013-06-28 | 2013-11-13 | 惠州市蓝微电子有限公司 | Lithium battery charging protection circuit |
| WO2015010528A1 (en) * | 2013-07-23 | 2015-01-29 | 特变电工新疆新能源股份有限公司 | Reverse connection-proof circuit and method for direct current input terminal and direct current input device |
| CN104426139A (en) * | 2013-08-30 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Anti-reverse battery charging protecting circuit |
| CN105514738A (en) * | 2016-01-08 | 2016-04-20 | 苏州市职业大学 | Automobile mutual power supply starting device |
-
2008
- 2008-12-09 CN CNU2008202292926U patent/CN201312124Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826724B (en) * | 2010-03-09 | 2013-10-23 | 海洋王照明科技股份有限公司 | Anti-reverse connection circuit of direct current power supply |
| CN101826724A (en) * | 2010-03-09 | 2010-09-08 | 海洋王照明科技股份有限公司 | Anti-reverse connection circuit of direct current power supply |
| CN101888109A (en) * | 2010-07-20 | 2010-11-17 | 衡阳中微科技开发有限公司 | Storage battery charge control circuit adopting two-way reverse connecting protection |
| CN101888109B (en) * | 2010-07-20 | 2012-12-05 | 衡阳中微科技开发有限公司 | Storage battery charge control circuit adopting two-way reverse connecting protection |
| CN102142681A (en) * | 2010-12-23 | 2011-08-03 | 聚信科技有限公司 | Method and device for preventing input reverse-connection damage |
| WO2012083738A1 (en) * | 2010-12-23 | 2012-06-28 | 华为技术有限公司 | Method and device for preventing input reverse-connection damage |
| CN102545199A (en) * | 2010-12-30 | 2012-07-04 | 英飞凌科技股份有限公司 | On-board power supply protection |
| US9041244B2 (en) | 2010-12-30 | 2015-05-26 | Infineon Technologies Ag | On-board power supply protection |
| CN102545199B (en) * | 2010-12-30 | 2016-01-27 | 英飞凌科技股份有限公司 | Power supply protection on plate |
| WO2013159580A1 (en) * | 2012-04-25 | 2013-10-31 | Dai Alex | Vehicle emergency rescue device |
| CN102923076A (en) * | 2012-10-26 | 2013-02-13 | 常州能动电子科技有限公司 | Small vehicle-mounted power supply |
| CN103208793A (en) * | 2013-04-17 | 2013-07-17 | 大连尚能科技发展有限公司 | Reverse connection prevention circuit for direct current power supply |
| CN103208793B (en) * | 2013-04-17 | 2016-08-10 | 大连尚能科技发展有限公司 | Anti-reverse connection circuit of direct current power supply |
| CN103390883A (en) * | 2013-06-28 | 2013-11-13 | 惠州市蓝微电子有限公司 | Lithium battery charging protection circuit |
| CN103390883B (en) * | 2013-06-28 | 2016-03-02 | 惠州市蓝微电子有限公司 | A kind of charging protective circuit of lithium cell |
| WO2015010528A1 (en) * | 2013-07-23 | 2015-01-29 | 特变电工新疆新能源股份有限公司 | Reverse connection-proof circuit and method for direct current input terminal and direct current input device |
| CN104426139A (en) * | 2013-08-30 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Anti-reverse battery charging protecting circuit |
| CN105514738A (en) * | 2016-01-08 | 2016-04-20 | 苏州市职业大学 | Automobile mutual power supply starting device |
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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: 20090916 Termination date: 20101209 |