CN106787060A - The battery of charging circuit can be automatically cut off - Google Patents
The battery of charging circuit can be automatically cut off Download PDFInfo
- Publication number
- CN106787060A CN106787060A CN201710175048.XA CN201710175048A CN106787060A CN 106787060 A CN106787060 A CN 106787060A CN 201710175048 A CN201710175048 A CN 201710175048A CN 106787060 A CN106787060 A CN 106787060A
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- CN
- China
- Prior art keywords
- resistance
- triode
- battery
- charging circuit
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004804 winding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J7/027—
-
- H02J7/045—
-
- H02J2007/10—
-
- 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
- H02J7/00304—Overcurrent protection
Abstract
The invention discloses a kind of battery that can automatically cut off charging circuit, including battery charging circuit, the battery charging circuit includes transformer, full-wave rectification bridge, relay, switch, battery, the first triode, the second triode and the 3rd triode, the switch is the normally closed switch of relay, the two ends of the first siding ring of transformer are connected with external power supply, and the two ends of the second siding ring of transformer are connected with the two of full-wave rectification bridge inputs.Break-make by controlling the base potential of triode in battery charging circuit to control battery charging circuit of the invention, high degree of automation, rational power-off control of charging has been effectively ensured the service life of battery.
Description
Technical field
The present invention relates to a kind of battery, and in particular to a kind of battery that can automatically cut off charging circuit.
Background technology
Chemical energy can be converted to the device plus chemical cell of electric energy, commonly abbreviated as battery.So-called battery, also referred to as
Secondary cell, after electric discharge, can regenerate internal active material with the mode for charging, i.e., electrical power storage be chemical energy, it is necessary to
Chemical energy is converted to electric energy again during electric discharge.Conventional battery is broadly divided into three classes：Conventional accumulators, dry storage battery and
Maintenance-free battery.The pole plate of conventional accumulators is made up of the oxide of lead and lead, and electrolyte is sulphur aqueous acid, it
Major advantage is voltage stabilization, cheap, and having the disadvantage must low (i.e. the electric energy of per kilogram battery storage be few), service life
Short and regular maintenance is frequent.The negative plate that is mainly characterized by of dry storage battery has charge storage ability higher, in the shape being completely dried
Under state, resulting electricity can be in two years being preserved, when using, only need to add electrolyte, waiting 20-30 minutes can just make
With.Maintenance-free battery is very small due to the advantage in self structure, the consumption of electrolyte, is not required to substantially in service life
Distilled water is supplemented, it also has the characteristics of shatter-proof, high temperature resistant, small volume, small self discharge, and service life is generally common electric power storage
The two sides in pond, the maintenance-free battery of in the market also has two kinds, and one kind is disposably to add electrolyte, later use in purchase
Need not safeguard (addition replenisher), another kind is just to have added good electrolyte when battery dispatches from the factory in itself and shut, and user is basic
Replenisher cannot be added.
Either which kind of battery, if charging is incorrect, can all shorten its service life.If undercharge, store
Battery charge capacity is not high, can shorten service lifetime of accumulator, if it is excessive to charge, though battery electric property is good, also can
Shorten its service life, so for battery, have a set of rational charging system be it is very crucial, in the prior art
Battery charging system whether be unable to automatic identification battery fully charged and cut off charge circuit in time.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art, there is provided one kind can automatically cut off charging
The battery of circuit, it controls battery charging circuit by controlling the base potential of triode in battery charging circuit
Break-make, high degree of automation, rational power-off control of charging has been effectively ensured the service life of battery.
The present invention is achieved through the following technical solutions：
The battery of charging circuit, including battery charging circuit, the battery charging circuit bag can be automatically cut off
Include transformer, full-wave rectification bridge, relay, switch, battery, the first triode, the second triode, the 3rd triode, first
Resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance and the 7th resistance, the switch are relay
Normally closed switch；The two ends of the first siding ring of the transformer are connected with external power supply, the two of the second siding ring of transformer
End is connected with two inputs of full-wave rectification bridge, and an output end of full-wave rectification bridge is connected with one end of switch, switch
The other end is connected with one end of the 4th resistance and the 5th resistance simultaneously, and the other end of the 4th resistance connects with one end of 3rd resistor
Connect, the other end of 3rd resistor is connected with one end of second resistance, the other end connection relative with full-wave rectification bridge of second resistance
Another output end connection of switch；The base stage of first triode is connected to the circuit that second resistance is connected with 3rd resistor
On, the emitter stage of the first triode is connected with the base stage of the second triode, emitter stage and the full-wave rectification bridge phase of the second triode
To the connection of another output end of connecting valve, the colelctor electrode of the first triode simultaneously with the colelctor electrode of the second triode and the 3rd
The emitter stage connection of triode, the colelctor electrode of the 3rd triode is connected with one end of relay, the other end of relay and the 5th
Resistance is connected with respect to the other end of connecting valve, and the base stage of the 3rd triode connects with one end of the 6th resistance and the 7th resistance simultaneously
Connect, the other end of the 6th resistance is connected with the emitter stage of the 3rd triode and one end of battery simultaneously, the 7th resistance it is another
End is connected with one end of first resistor, the other end other end for connecting the 3rd triode simultaneously relative with relay of first resistor
The other end with battery the 6th resistance of relative connection is connected.During using the present invention, outside the first siding ring connection of transformer
Power supply is connect for 220V civil powers, 220V civil powers obtain secondary voltage after transformer pressure-reducing, and secondary voltage is through full-wave rectification bridge rectification
After be changed into DC pulse moving voltage, by setting the value of suitable second resistance, 3rd resistor and the 4th resistance, make the first triode
With the second triode ON, the DC pulse moving voltage through an output end of full-wave rectification bridge, normally closed switch, the 5th resistance, store
Battery and the second triode, another output end for eventually passing back to full-wave rectification bridge constitute loop, and battery is charged,
During this, when the electricity of battery is full of, by setting the resistance of the 6th resistance, the 7th resistance and first resistor, make the
The base potential of three triodes can just make the 3rd triode ON, relay obtain electric, and normally closed switch disconnects, and battery charges
Circuit is electrically disconnected with city, stops charging battery.
Further, the 4th resistance is swept resistance.4th resistance is set to swept resistance, convenient regulation first
The base potential value of triode and the second triode.
Further, the battery charging circuit also includes first fuse and second fuse, first fusing
Device is connected on the circuit that transformer primary winding is connected with external power supply, second fuse be connected on transformer secondary coil with
On the connected circuit of full-wave rectification bridge.By setting first fuse and second fuse, battery circuit can be played
Stream protection, prevents when city's electro-mechanical wave is excessive, the excessive electronic device burnt out in circuit of peak current.
Further, the battery charging circuit also includes the first diode and the second diode, the one or two pole
The positive pole of pipe is connected one end connection of the 3rd triode, the negative pole connection the 3rd relative with relay of the first diode with relay
The connected other end connection of triode, the second Diode series on the circuit that relay is connected with the 5th resistance, and the 2nd 2
The positive pole of pole pipe is connected with the 5th resistance, and the negative pole of the second diode is connected with relay.First diode can prevent relay
Device electronic device in the induced electromotive force produced during being opened or closed burns out circuit.
Further, the 7th resistance is swept resistance, the base stage of the 3rd triode and the slip of the 7th resistance
Tap is connected.7th resistance is set to swept resistance, battery charging circuit pair can be adjusted by adjusting sliding tap
Battery is powered off when being charged to how many volts, such as the nominal voltage of battery is 12V, by adjusting sliding tap, changes the 3rd
The base potential when battery tension is 12V of triode, if now the base potential of the 3rd triode is less than the three or three pole
The conducting voltage of pipe, then battery charging circuit to battery continue charge, until the base potential of the 3rd triode makes the 3rd
Triode ON, now the voltage of battery is higher than 12V, conversely, battery charging circuit will (be in advance in battery tension
Before 12V) power-off, now the voltage of battery is less than 12V.
Further, the battery charging circuit also includes the first electric capacity and the second electric capacity, the two of first electric capacity
End is connected with the base stage of the first triode and the emitter stage of the second triode respectively, and the two ends of second electric capacity are respectively with second
The base stage connection of the emitter stage of triode and the 3rd triode.
Further, the battery charging circuit also includes voltmeter, and the voltmeter is in parallel with battery.By setting
Put voltmeter, user can be facilitated to check battery tension, thus reasonable adjusting battery it is fully charged when magnitude of voltage.
The present invention compared with prior art, has the following advantages and advantages：1st, the present invention is by controlling battery
The base potential of triode controls the break-make of battery charging circuit in charging circuit, and high degree of automation is rational to charge
Power-off control has been effectively ensured the service life of battery；2nd, the 4th resistance and the 7th resistance are set to swept resistance, it is convenient
The base potential value of the first triode, the second triode and the 3rd triode is adjusted, so that reasonable adjusting battery is fully charged
When magnitude of voltage；3rd, by setting first fuse and second fuse, overcurrent protection can be played to battery circuit, is prevented
When city's electro-mechanical wave is excessive, the excessive electronic device burnt out in circuit of peak current；4th, the first diode can prevent relay
The electronic device in the induced electromotive force produced during being opened or closed burns out circuit.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
T-transformer, A-full-wave rectification bridge, J-relay, K-switch, GB-battery, V-voltmeter, F1-the
One fuse, F2-second fuse, VT1-the first triode, VT2-the second triode, the triodes of VT3-the 3rd, D1-
First diode, D2-the second diode, R1-first resistor, R2-second resistance, R3-3rd resistor, R4-the 4th electricity
Resistance, the resistance of R5-the 5th, the resistance of R6-the 6th, the resistance of R7-the 7th, C1-the first electric capacity, C2-the second electric capacity.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment
Such as Fig. 1, the present invention provides the battery that can automatically cut off charging circuit, including battery charging circuit, electric power storage
Pond charging circuit includes transformer T, full-wave rectification bridge A, relay J, switch K, battery GB, the first triode VT1, the two or three
Pole pipe VT2, the 3rd triode VT3, the second diode D2, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance
R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7 and voltmeter V, switch K are the normally closed switch of relay J, the 4th electricity
Resistance R4 and the 7th resistance R7 is swept resistance.
The two ends of the first siding ring of transformer T are connected with external power supply, the two ends of the second siding ring of transformer T with it is complete
Two inputs of ripple rectifier bridge A are connected, and an output end of full-wave rectification bridge A is connected with one end of switch K, and switch K's is another
One end is connected with one end of the 4th resistance R4 and the 5th resistance R5 simultaneously, the other end of the 4th resistance R4 and the one of 3rd resistor R3
End connection, the other end of 3rd resistor R3 is connected with one end of second resistance R2, the other end of second resistance R2 and full-wave rectification
Another output end connections of the bridge A with respect to connecting valve K.
The base stage of the first triode VT1 is connected on the circuit that second resistance R2 is connected with 3rd resistor R3, the one or three pole
The emitter stage of pipe VT1 is connected with the base stage of the second triode VT2, and the emitter stage of the second triode VT2 is relative with full-wave rectification bridge A
Another output end connection of connecting valve K, the colelctor electrode of the first triode VT1 colelctor electrode simultaneously with the second triode VT2
Emitter stage with the 3rd triode VT3 is connected, and the colelctor electrode of the 3rd triode VT3 is connected with one end of relay J, relay J
The other end be connected with the negative pole of the second diode D2, the positive pole connecting valve K relative with the 5th resistance R5 of the second diode D2
Other end connection, the base stage of the 3rd triode VT3 is connected with the sliding tap of the 7th resistance R7, and the two ends of the 7th resistance R7 are divided
One end not with the 6th resistance R6 and first resistor R1 is connected, and the other end of the 6th resistance R6 is simultaneously with the 3rd triode VT3's
One end connection of emitter stage and battery GB, the other end of first resistor R1 is simultaneously relative with relay J to connect the 3rd triode
The other end connection of the 6th resistance R6 of the relative connection of the other end and battery GB of VT3, voltmeter V is in parallel with battery GB.
The present embodiment also includes first fuse F1, second fuse F2, the first electric capacity C1, the second electric capacity C2 and the one or two
Pole pipe D1；First fuse F1 is connected on the circuit that transformer T primary windings are connected with external power supply, second fuse F2 strings
It is associated on the circuit that transformer T secondary coils are connected with full-wave rectification bridge A, the positive pole of the first diode D1 is connected with relay J
One end connection of the 3rd triode VT3, the 3rd triode VT3 of negative pole connection relative with relay J of the first diode D1 is connected
Other end connection, the two ends of the first electric capacity C1 respectively with the base stage and the emitter stage of the second triode VT2 of the first triode VT1
Connection, the two ends of the second electric capacity C2 are connected with the emitter stage of the second triode VT2 and the base stage of the 3rd triode VT3 respectively.
When implementing the present embodiment, the external power supply of the first siding ring connection of transformer T is 220V civil powers, 220V civil powers warp
Secondary voltage is obtained after transformer T step-downs, secondary voltage is changed into DC pulse moving voltage after full-wave rectification bridge A rectifications, by adjusting
The position of the sliding tap of the 4th resistance R4 is saved, and the value of suitable second resistance R2 and 3rd resistor R3 is set, make the one or three
Pole pipe VT3 and the second triode VT2 are turned on, the DC pulse moving voltage through the output end of full-wave rectification bridge A, normally closed switch K,
5th resistance R5, battery GB and the second triode VT2, another output end for eventually passing back to full-wave rectification bridge A constitute loop,
Battery GB is charged, in this process, battery can be adjusted by adjusting the sliding tap of the 7th resistance R7
Charging circuit is powered off when how many volts are charged to battery GB, such as the nominal voltage of battery GB is 12V, by regulation the 7th
The sliding tap of resistance R7, changes base potentials of the 3rd triode VT3 when battery tension is 12V, if now the 3rd
Conducting voltage of the base potential of triode VT3 less than the 3rd triode VT3, then battery charging circuit is to battery GB continuation
Charge, until the base potential of the 3rd triode VT3 turns on the 3rd triode VT3, now the voltage of battery GB is higher than
12V, conversely, battery charging circuit will be powered off (before battery tension is 12V) in advance, now the voltage of battery GB is low
In 12V.
Wherein, first fuse F1, second fuse F2 and the first diode D1 are that battery charging circuit is risen to protect
Shield is acted on.First fuse F1 and second fuse F2 can be prevented when city's electro-mechanical wave is excessive, and peak current is excessive to burn out electricity
Electronic device in road；First diode D1 can prevent the induced electromotive force that relay J is produced during being opened or closed
Burn out electronic device in circuit.Second diode D2 is used for the sense of current in limiting circuit.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (7)
1. the battery of charging circuit can be automatically cut off, it is characterised in that including battery charging circuit, the battery fills
Circuit includes transformer (T), full-wave rectification bridge (A), relay (J), switch (K), battery (GB), the first triode
(VT1), the second triode (VT2), the 3rd triode (VT3), first resistor (R1), second resistance (R2), 3rd resistor (R3),
4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6) and the 7th resistance (R7), the switch (K) are relay (J)
Normally closed switch；
The two ends of the first siding ring of the transformer (T) are connected with external power supply, the two ends of the second siding ring of transformer (T)
It is connected with two inputs of full-wave rectification bridge (A), an output end of full-wave rectification bridge (A) is connected with one end of switch (K),
Switch (K) the other end simultaneously be connected with one end of the 4th resistance (R4) and the 5th resistance (R5), the 4th resistance (R4) it is another
End is connected with one end of 3rd resistor (R3), and the other end of 3rd resistor (R3) is connected with one end of second resistance (R2), and second
Another output end connection of the other end of resistance (R2) connecting valve (K) relative with full-wave rectification bridge (A)；
The base stage of first triode (VT1) is connected on the circuit that second resistance (R2) is connected with 3rd resistor (R3), the
The emitter stage of one triode (VT1) is connected with the base stage of the second triode (VT2), the emitter stage of the second triode (VT2) with it is complete
Ripple rectifier bridge (A) is connected with respect to another output end of connecting valve (K), and the colelctor electrode of the first triode (VT1) is simultaneously with the
The colelctor electrode of two triodes (VT2) and the 3rd triode (VT3) emitter stage connection, the colelctor electrode of the 3rd triode (VT3) with
One end connection of relay (J), the other end of the other end of relay (J) connecting valve (K) relative with the 5th resistance (R5) connects
Connect, the base stage of the 3rd triode (VT3) is connected with one end of the 6th resistance (R6) and the 7th resistance (R7) simultaneously, the 6th resistance
(R6) the other end is connected with the emitter stage of the 3rd triode (VT3) and one end of battery (GB) simultaneously, the 7th resistance (R7)
The other end be connected with one end of first resistor (R1), the other end of first resistor (R1) is simultaneously relative with relay (J) to be connected
The other end connection of the other end and battery (GB) of the 3rd triode (VT3) the 6th resistance (R6) of relative connection.
2. the battery that charging circuit can be automatically cut off according to claim 1, it is characterised in that the 4th resistance
(R4) it is swept resistance.
3. the battery that charging circuit can be automatically cut off according to claim 1, it is characterised in that the battery fills
Circuit also includes first fuse (F1) and second fuse (F2), and the first fuse (F1) is connected on transformer (T)
On the circuit that primary winding is connected with external power supply, it is whole with all-wave that second fuse (F2) is connected on transformer (T) secondary coil
On the connected circuit of stream bridge (A).
4. the battery that charging circuit can be automatically cut off according to claim 1, it is characterised in that the battery fills
Circuit also includes the first diode (D1) and the second diode (D2), the positive pole and relay of first diode (D1)
(J) one end connection of the 3rd triode (VT3) of connection, the negative pole connection the 3rd relative with relay (J) of the first diode (D1)
The connected other end connection of triode (VT3), the second diode (D2) is connected on what relay (J) was connected with the 5th resistance (R5)
On circuit, and the positive pole of the second diode (D2) is connected with the 5th resistance (R5), the negative pole and relay of the second diode (D2)
(J) it is connected.
5. the battery that charging circuit can be automatically cut off according to claim 1, it is characterised in that the 7th resistance
It is swept resistance, the base stage of the 3rd triode (VT3) is connected with the sliding tap of the 7th resistance (R7).
6. the battery that charging circuit can be automatically cut off according to claim 1, it is characterised in that the battery fills
Circuit also includes the first electric capacity (C1) and the second electric capacity (C2), the two ends of first electric capacity (C1) respectively with the first triode
(VT1) the emitter stage connection of base stage and the second triode (VT2), the two ends of second electric capacity (C2) respectively with the two or three pole
Manage the base stage connection of the emitter stage and the 3rd triode (VT3) of (VT2).
7. the battery that can automatically cut off charging circuit according to claim 1-6 any one, it is characterised in that
The battery charging circuit also includes voltmeter (V), and the voltmeter (V) is in parallel with battery (GB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175048.XA CN106787060A (en) | 2017-03-22 | 2017-03-22 | The battery of charging circuit can be automatically cut off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175048.XA CN106787060A (en) | 2017-03-22 | 2017-03-22 | The battery of charging circuit can be automatically cut off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106787060A true CN106787060A (en) | 2017-05-31 |
Family
ID=58966217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710175048.XA Withdrawn CN106787060A (en) | 2017-03-22 | 2017-03-22 | The battery of charging circuit can be automatically cut off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106787060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069672A (en) * | 2017-04-06 | 2017-08-18 | 六安市同心畅能电子科技有限公司 | A kind of battery overload short circuit automatic power-off protection circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204794045U (en) * | 2015-07-15 | 2015-11-18 | 张莹 | Notebook battery charge protection circuit |
-
2017
- 2017-03-22 CN CN201710175048.XA patent/CN106787060A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204794045U (en) * | 2015-07-15 | 2015-11-18 | 张莹 | Notebook battery charge protection circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069672A (en) * | 2017-04-06 | 2017-08-18 | 六安市同心畅能电子科技有限公司 | A kind of battery overload short circuit automatic power-off protection circuit |
| CN107069672B (en) * | 2017-04-06 | 2019-03-15 | 六安市同心畅能电子科技有限公司 | A kind of battery overload short circuit automatic power-off protection circuit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
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| WW01 | Invention patent application withdrawn after publication |