CN104600763B - Under-voltage protecting circuit and lamps and lanterns - Google Patents
Under-voltage protecting circuit and lamps and lanterns Download PDFInfo
- Publication number
- CN104600763B CN104600763B CN201310529199.2A CN201310529199A CN104600763B CN 104600763 B CN104600763 B CN 104600763B CN 201310529199 A CN201310529199 A CN 201310529199A CN 104600763 B CN104600763 B CN 104600763B
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- Prior art keywords
- switch
- under
- battery
- unit
- protecting circuit
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
Abstract
A kind of under-voltage protecting circuit and lamps and lanterns comprising：Reset unit, detection unit, control unit and switch unit；Control unit end connecting detection unit, switch unit connect battery, charging circuit, reset unit, subordinate's circuit and detection unit；Wherein, reset unit starts under-voltage protecting circuit, and when detection unit detects that the electricity of battery is less than setting value, the first end of control unit control switch unit is connect with second end, and battery is connect with charging circuit, and battery is in charged state；When the electricity of battery restores normal, reset unit restarts under-voltage protecting circuit, and the first end of control unit control switch is connect with third end, and battery is connect with subordinate circuit.The present invention can carry out under-voltage protection to battery, extend battery life, and have self-locking function, prevent the generation of economic loss and safety accident.
Description
Technical field
The present invention relates to protection circuit more particularly to under-voltage protecting circuits and lamps and lanterns.
Background technology
In the prior art, when cell voltage is too low, no under-voltage protection will result in battery over-discharge, and influencing battery makes
With the service life, charge function cannot be started when cell voltage is too low automatically, battery is caused to be chronically at starvation, make battery performance
It reduces or scraps, cause unnecessary economic loss.In addition in specific occasion, some instruments need to keep working condition,
If equipment is closed in someone's maloperation, it is possible to cause economic loss, or even the invention that causes a serious accident.
Invention content
The technical problem to be solved in the present invention is to overcome above-mentioned the shortcomings of the prior art, and proposes a kind of under-voltage guarantor
Protection circuit and lamps and lanterns can solve no under-voltage protection and cause battery over-discharge, influence battery, and because
Maloperation brings the problems such as economic loss and safety accident.
In order to solve the above technical problems, the present invention proposes a kind of under-voltage protecting circuit comprising：Reset unit is used for
Start under-voltage protecting circuit, and under-voltage protecting circuit is kept to work or disconnected with subordinate's circuit comprising input terminal and output
End；Whether detection unit, the electricity for being used to detect battery are less than setting value comprising input terminal, the first output end and the
Two output ends；Control unit comprising first input end, the second input terminal and output end, the first input end of control unit
First output end of connecting detection unit, the second output terminal of the second input terminal connecting detection unit of control unit；Switch is single
Member is used to control under-voltage protecting circuit and charges when under-voltage and be powered when normal comprising relay, relay
Device includes hot-wire coil and is controlled by the switch of hot-wire coil, and switch includes first end, second end and third end, switch
First end connects the anode of battery, the second end connection charging circuit of switch and the output end of reset unit, the third of switch
End connection subordinate circuit, the cathode of one end connection battery of hot-wire coil, the other end of hot-wire coil connect the defeated of reset unit
Enter end；Wherein, reset unit starts under-voltage protecting circuit, when detection unit detects that the electricity of battery is less than setting value, control
The first end of unit control switch unit processed is connect with second end, and battery is connect with charging circuit, and battery is in charged state；When
When the electricity of battery restores normal, user restarts under-voltage protecting circuit by reset unit to work, control unit control
The first end of switch unit processed is connect with third end, and battery is connect with subordinate circuit；When under-voltage protecting circuit is in running order
When, user only could stop under-voltage protecting circuit work by reset unit.
Preferably, reset unit includes touch-switch, and the input terminal of one end connection reset unit of touch-switch touches out
The output end of the other end connection reset unit of pass.
Preferably, detection unit includes first resistor and second resistance, one end connecting detection unit of first resistor
Input terminal and the first output end, one end of the other end connection second resistance of first resistor and the second output of detection unit
End, the other end ground connection of second resistance.
Preferably, control unit includes 3rd resistor, first switch pipe and second switch pipe；First switch pipe includes control
End, input terminal and output end processed, second switch pipe include control terminal, input terminal and output end；The input of first switch pipe
The first input end of end connection control unit, the input terminal of the control terminal connection second switch pipe of first switch pipe, first switch
The output end of the output end connection control unit of pipe, the second input terminal of the control terminal connection control unit of second switch pipe, the
The output end of two switching tubes is grounded, and first resistor is connected between the control terminal and input terminal of first switch pipe.
Preferably, first switch pipe is triode, and the base stage of triode is the control terminal of first switch pipe, the hair of triode
Emitter-base bandgap grading is the input terminal of first switch pipe, the output end of the current collection extremely first switch pipe of triode.
Preferably, second switch pipe is triode, and the base stage of triode is the control terminal of second switch pipe, the collection of triode
Electrode is the input terminal of second switch pipe, the output end of the transmitting extremely second switch pipe of triode.
Preferably, switch unit further includes diode, the second end of the cathode connecting valve of diode, the anode of diode
Connect charging circuit.
Preferably, under-voltage protecting circuit further includes indicating unit, is used to show whether under-voltage protecting circuit to be under-voltage, packet
Indicator light and the 4th resistance are included, indicator light and the 4th resistance are sequentially connected in series between the output end and ground of switch unit.
The present invention also proposes a kind of lamps and lanterns comprising the upper under-voltage protecting circuit.
Compared with prior art, the present invention has the advantages that：The under-voltage protecting circuit and lamps and lanterns of the present invention,
It is protected, and is charged when battery undervoltage, the service life of battery can extended in this way, and there is self-locking function, prevented
Only serious accident and economic loss are caused because of maloperation pass hull closure.
Description of the drawings
Fig. 1 is the electrical block diagram of the under-voltage protecting circuit of the present invention.
Wherein, the reference numerals are as follows：1 touch-switch S1 detection units of reset unit, 2 first resistor R1 second
3 3rd resistor R3 triode Q1 triode Q2 switch units of resistance R2 control units, 4 relay K1 diodes D1 refers to
Show the 4th resistance R4 batteries BT1 of 5 indicator light LED1 of unit.
Specific implementation mode
Principle in order to further illustrate the present invention and structure carry out the preferred embodiment of the present invention in conjunction with attached drawing detailed
It describes in detail bright.
Under-voltage protecting circuit embodiment：Referring to Fig. 1, the present invention proposes a kind of under-voltage protecting circuit comprising：It resets single
Member 1, detection unit 2, control unit 3, switch unit 4 and indicating unit 5.
Reset unit 1 includes input terminal and output end, and detection unit 2 includes that input terminal, the first output end and second are defeated
Outlet, control unit 3 include first input end, the second input terminal and output end.Switch unit includes relay K1, relay
K1 includes hot-wire coil and is controlled by the switch of hot-wire coil, and switch includes first end, second end and third end.
First output end of the first input end connecting detection unit 2 of control unit 3, the second input terminal of control unit 3
The second output terminal of connecting detection unit 2, the anode of the first end connection battery of switch, the second end of switch connect charging circuit
And the output end of reset unit, the third end connection subordinate circuit of switch, the cathode of one end connection battery of hot-wire coil lead to
The input terminal of the other end connection reset unit of electric coil.
Reset unit 1 is for starting whether under-voltage protecting circuit, voltage of the detection unit 2 for detection circuit are less than setting
Setting value, control unit 3 control switch unit 4, switch unit 4 charge when under-voltage for control circuit and normally
When be powered, indicating unit 5 is for showing whether under-voltage protecting circuit under-voltage.
Wherein, reset unit 1 starts under-voltage protecting circuit, when detection unit 2 detects the electricity of battery BT1 less than setting
When value, the first end of the control switch of control unit 3 is connect with second end, and battery BT1 is connect with charging circuit, and battery BT1 is in
Charged state；When the electricity of battery BT1 restores normal, reset unit 1 restarts under-voltage protecting circuit, and control unit 3 is controlled
The first end of system switch is connect with third end, and battery BT1 is connect with subordinate circuit；When the under-voltage protecting circuit is in work shape
When state, user only could stop the under-voltage protecting circuit by the reset unit and work.
Reset unit 1 includes touch-switch S1.The input terminal of one end connection reset unit 1 of touch-switch S1, is touched out
Close the output end of the other end connection reset unit 1 of S1.
Detection unit 2 includes first resistor R1 and second resistance R2.One end connecting detection unit 2 of first resistor R1
The of input terminal and the first output end, one end of the other end connection second resistance R2 of first resistor R1 and detection unit 2
Two output ends, the other end ground connection of second resistance R2.
Control unit 3 includes 3rd resistor R3, first switch pipe and second switch pipe.First switch pipe includes control
End, input terminal and output end, second switch pipe include control terminal, input terminal and output end.The input terminal of first switch pipe
Connect the first input end of control unit 3, the input terminal of the control terminal connection second switch pipe of first switch pipe, first switch pipe
Output end connection control unit 3 output end, the second input terminal of the control terminal connection control unit 3 of second switch pipe, the
The output end of two switching tubes is grounded, and first resistor R1 is connected between the control terminal and input terminal of first switch pipe.
In the present embodiment, first switch pipe is triode Q1, and the base stage of triode Q1 is the control terminal of first switch pipe, three
The input terminal of the transmitting extremely first switch pipe of pole pipe Q1, the output end of the current collection extremely first switch pipe of triode Q1.At it
In its embodiment, triode Q1 can also be replaced with metal-oxide-semiconductor.
In the present embodiment, second switch pipe is triode Q2, and the base stage of triode Q2 is the control terminal of second switch pipe, three
The input terminal of the current collection of pole pipe Q2 extremely second switch pipe, the output end of the transmitting extremely second switch pipe of triode Q2.At it
In its embodiment, triode Q2 can also be replaced with metal-oxide-semiconductor.
Switch unit 4 further includes diode D1.The second end of the cathode connecting valve of diode D1, the anode of diode D1
Connect charging circuit.In the present embodiment, switch as single-pole double-throw switch (SPDT).
Indicating unit 5 includes indicator light LED1 and the 4th resistance R4.Indicator light LED1 and the 4th resistance R4 go here and there successively
It is associated between the output end and ground of switch unit 4.
Lamps and lanterns embodiment：The present invention also proposes a kind of lamps and lanterns comprising under-voltage protecting circuit as described above.
Carry out the operation principle that the present invention will be described in detail with reference to Fig. 1.
Touch-switch S1 is pressed, relay K1 coils obtain electric actuation, and the contacts relay K1 are connected in normally opened contact b points, battery
The anode of BT1 is switched to output end vo end, exports high level, and output indicator LED1 is lighted.Through the electricity of first resistor R1 and second
After hindering R2 partial pressures, the base stage of triode Q2 is high level, and triode Q2 conductings, then triode Q1 conductings, electric current is through triode
Q1, relay K1 coils unclamp touch-switch S1 at this time, and output is also high level, and circuit is in the lock state.
With the progress of battery BT1 electric discharges, the voltage reduction of battery BT1 slowly reduces, and is set when the voltage of battery BT1 is less than
When fixed setting value, after first resistor R1 and second resistance R2 partial pressures, the base stage of triode Q2 is low level, triode Q2 by
Conducting becomes turning off, and then triode Q1 is turned off, and relay K1 coil no currents flow through, and the contacts relay K1 are connected in normally-closed contact
A points, battery BT1 anodes are switched to charging circuit port and charge, and export low level.Touch-switch S1, relay are pressed at this time
Device K1 coils obtain electric actuation, and the contacts relay K1 are normally opened contact b points, and battery BT1 anodes are switched to output end vo end, and output is low
Level, because the base stage of triode Q2 is low level, triode Q2 is off state, and triode Q1 is also switched off, in non-locking
State unclamps touch-switch S1, and relay K1 dead electricity is in non-pull state, and contact is changed to a points and continues to charge.
Compared with prior art, the present invention has the advantages that：The under-voltage protecting circuit and lamps and lanterns of the present invention,
It is protected, and is charged when battery undervoltage, the service life of battery can extended in this way, and there is self-locking function, prevented
Only serious accident and economic loss are caused because of maloperation pass hull closure.
The preferable possible embodiments that these are only the present invention, not limit the scope of the invention, all with the present invention
Equivalent structure variation made by specification and accompanying drawing content, is included within the scope of protection of the present invention.
Claims (9)
1. a kind of under-voltage protecting circuit, which is characterized in that it includes：
Reset unit is used to start the under-voltage protecting circuit, or makes the under-voltage protecting circuit and subordinate's circuit disconnection,
Including input terminal and output end；
Whether detection unit, the electricity for being used to detect battery are less than setting value comprising input terminal, the first output end and the
Two output ends；
Control unit comprising the first input end of first input end, the second input terminal and output end, described control unit connects
The first output end of the detection unit is connect, the second input terminal of described control unit connects the second output of the detection unit
End；
Switch unit is used to control the under-voltage protecting circuit and charges when under-voltage and be powered when normal,
Including relay, the relay includes hot-wire coil and is controlled by the switch of the hot-wire coil, and the switch includes the
One end, second end and third end, the first end of the switch connect the anode of the battery, the second end connection of the switch
The third end of the output end of charging circuit and the reset unit, the switch connects subordinate's circuit, the live wire
One end of circle connects the cathode of the battery, and the other end of the hot-wire coil connects the input terminal of the reset unit；
Wherein, the reset unit starts the under-voltage protecting circuit, when the detection unit detects the electricity of the battery
When less than the setting value, the first end that described control unit controls the switch is connect with second end, the battery with it is described
Charging circuit connects, and the battery is in charged state；When the electricity of the battery restores normal, user need to be by described multiple
Bit location restarts the under-voltage protecting circuit, and described control unit controls the first end of the switch unit and third end connects
It connects, the battery is connect with subordinate's circuit；When the electricity of the battery is less than the setting value, user only passes through institute
Stating reset unit just can be such that the battery is connect with subordinate's circuit.
2. under-voltage protecting circuit as described in claim 1, which is characterized in that the reset unit includes touch-switch, described
One end of touch-switch connects the input terminal of the reset unit, and the other end of the touch-switch connects the reset unit
Output end.
3. under-voltage protecting circuit as described in claim 1, which is characterized in that the detection unit includes first resistor and
One end of two resistance, the first resistor connects the input terminal and the first output end of the detection unit, the first resistor
The other end connect one end of the second resistance and the second output terminal of detection unit, another termination of the second resistance
Ground.
4. under-voltage protecting circuit as claimed in claim 3, which is characterized in that described control unit includes 3rd resistor, first
Switching tube and second switch pipe；The first switch pipe includes control terminal, input terminal and output end, the second switch pipe
Including control terminal, input terminal and output end；First input of the input terminal connection described control unit of the first switch pipe
End, the control terminal of the first switch pipe connect the input terminal of the second switch pipe, and the output end of the first switch pipe connects
Meet the output end of described control unit, the second input terminal of the control terminal connection described control unit of the second switch pipe, institute
State second switch pipe output end ground connection, the first resistor be connected to the first switch pipe control terminal and input terminal it
Between.
5. under-voltage protecting circuit as claimed in claim 4, which is characterized in that the first switch pipe be triode, described three
The base stage of pole pipe is the control terminal of the first switch pipe, the input of the extremely described first switch pipe of transmitting of the triode
End, the output end of the extremely described first switch pipe of current collection of the triode.
6. under-voltage protecting circuit as claimed in claim 4, which is characterized in that the second switch pipe be triode, described three
The base stage of pole pipe is the control terminal of the second switch pipe, the input of the extremely described second switch pipe of current collection of the triode
End, the output end of the extremely described second switch pipe of transmitting of the triode.
7. under-voltage protecting circuit as described in claim 1, which is characterized in that the switch unit further includes diode, described
The cathode of diode connects the second end of the switch, and the anode of the diode connects the charging circuit.
8. under-voltage protecting circuit as described in claim 1, which is characterized in that the under-voltage protecting circuit further includes that instruction is single
Member is used to show whether the under-voltage protecting circuit under-voltage comprising indicator light and the 4th resistance, the indicator light and
4th resistance is sequentially connected in series between the third end of the switch and ground.
9. a kind of lamps and lanterns, which is characterized in that it includes the under-voltage protecting circuit as described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529199.2A CN104600763B (en) | 2013-10-30 | 2013-10-30 | Under-voltage protecting circuit and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529199.2A CN104600763B (en) | 2013-10-30 | 2013-10-30 | Under-voltage protecting circuit and lamps and lanterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104600763A CN104600763A (en) | 2015-05-06 |
| CN104600763B true CN104600763B (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310529199.2A Active CN104600763B (en) | 2013-10-30 | 2013-10-30 | Under-voltage protecting circuit and lamps and lanterns |
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| Country | Link |
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| CN (1) | CN104600763B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968455A (en) * | 2017-12-04 | 2018-04-27 | 郑州天舜电子技术有限公司 | A kind of storage battery charging-discharging intelligent control circuit |
| CN107947273A (en) * | 2017-12-04 | 2018-04-20 | 郑州天舜电子技术有限公司 | A kind of energy storage battery intelligent control circuit |
| CN109474034B (en) * | 2018-11-09 | 2021-02-12 | 浙江国自机器人技术股份有限公司 | Robot autonomous charging equipment, robot and autonomous charging system thereof |
| CN109980609B (en) * | 2019-03-29 | 2021-05-18 | 江苏赣锋动力科技有限公司 | Battery under-voltage protection method and system based on BMS |
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| US5617010A (en) * | 1994-07-06 | 1997-04-01 | Mitsumi Electric Co., Ltd. | Overcharge and overdischarge protection for a chargeable electric cell operable with a reduced current consumption |
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| KR101003444B1 (en) * | 2007-11-16 | 2010-12-28 | 어드밴스 스마트 인더스트리얼 리미티드 | Lithium-ion battery alarm protection apparatus and method |
| CN102300351A (en) * | 2010-06-28 | 2011-12-28 | 昆山正国能源科技有限公司 | Solar energy light emitting diode (LED) illuminating lamp |
| CN203166621U (en) * | 2013-03-22 | 2013-08-28 | 杭州鸿德照明科技有限公司 | High efficiency environmental protection power failure standby emergency power supply circuit |
| CN103280872A (en) * | 2013-05-13 | 2013-09-04 | 中联重科股份有限公司 | Control method and device for power supply device, power supply system and equipment |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617010A (en) * | 1994-07-06 | 1997-04-01 | Mitsumi Electric Co., Ltd. | Overcharge and overdischarge protection for a chargeable electric cell operable with a reduced current consumption |
| KR101003444B1 (en) * | 2007-11-16 | 2010-12-28 | 어드밴스 스마트 인더스트리얼 리미티드 | Lithium-ion battery alarm protection apparatus and method |
| CN101908755A (en) * | 2009-06-02 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Overdischarge protector for battery |
| CN102300351A (en) * | 2010-06-28 | 2011-12-28 | 昆山正国能源科技有限公司 | Solar energy light emitting diode (LED) illuminating lamp |
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Also Published As
| Publication number | Publication date |
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| CN104600763A (en) | 2015-05-06 |
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