CN201937319U - Battery charge and power-off protection device - Google Patents
Battery charge and power-off protection device Download PDFInfo
- Publication number
- CN201937319U CN201937319U CN2011200902498U CN201120090249U CN201937319U CN 201937319 U CN201937319 U CN 201937319U CN 2011200902498 U CN2011200902498 U CN 2011200902498U CN 201120090249 U CN201120090249 U CN 201120090249U CN 201937319 U CN201937319 U CN 201937319U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- pin
- battery
- comparator
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a battery charge and power-off protection device. The device is provided with a housing, wherein conducting wires arranged at two ends of the housing are electrically connected with a charger and a battery respectively; a circuit board is mounted in the housing; a voltage-stabilizing circuit, a sampling circuit, a comparison circuit and an actuating element are mounted on the circuit board; the actuating element and a voltage-stabilizing block 7805 are in parallel connection with the output end of the voltage-stabilizing circuit; the output end of the voltage-stabilizing block 7805 is connected with the comparison circuit; the sampling circuit is connected to the positive input end of a comparator after being connected to the negative input end TL431 of the LM 358 comparator of an integrated circuit to form a reference voltage with a resistor R3; the base electrodes of triodes VT1 and VT2 are connected to the output end of the comparator; a work indicating lamp LED 2 is parallelly connected to two ends of a relay K; and two ends of a charging power supply V is in parallel connection with a power supply indicating lamps 1. The device provided by the utility model has the advantages that the structure is simple, the use is convenient, the applicability is strong, the power off is complete, the service life of the battery is prolonged, and the electrical energy is effectively saved.
Description
Technical field
The utility model relates to a kind of charge protection device of battery, especially a kind of battery charge power-off protection apparatus.
Background technology
At present, people are in the process that batteries such as electric motor car, mobile phone are charged, can't accurately control charge volume and charging interval, and because existing charger does not possess the function of automatic outage, after battery is full of, can't in time cut off the power supply, cause the long-time floating charge of battery, not only waste electric energy and shortened useful life of battery.
Background technology
In order to solve the problem that battery runs in the process of charging; the utility model proposes a kind of battery charge power-off protection apparatus; this apparatus structure is simple; easy to use; can be widely used in the charge protection of batteries such as electric motor car, mobile phone, applicability is strong, and outage thoroughly; prolong the useful life of battery, and effectively saved electric energy.
The technical scheme that its technical problem that solves the utility model adopts is: this a kind of battery charge power-off protection apparatus comprises voltage stabilizing circuit, sample circuit, comparison circuit and executive component; Described power-off protection apparatus has a housing; The two ends of described housing are respectively equipped with lead and are electrically connected with charger and battery; In the described housing circuit board is installed, voltage stabilizing circuit, sample circuit, comparison circuit and executive component are installed on this circuit board; Described voltage stabilizing circuit is by voltage-stabiliser tube W, current-limiting resistance R
8, capacitor C
1With discharge resistance R
9Form; The output of described voltage stabilizing circuit is parallel with executive component relay J K and regulator block 7805; The output of regulator block 7805 is connected with comparison circuit, and output 5V operating voltage offers comparison circuit and uses; Described comparison circuit is made of integrated circuit LM358; Described sample circuit is through resistance R
1, R
2Be connected to negative input end the 2nd pin and the 6th pin of integrated circuit LM358 comparator after the dividing potential drop; TIA31 and resistance R
3Form reference voltage, through resistance R
4, R
5Be connected respectively to comparator positive input terminal the 5th pin and the 3rd pin after the dividing potential drop; Triode VT
1And VT
2Base stage is through resistance R
7, R
6Be connected respectively to output the 1st pin and the 7th pin of comparator, be used for the break-make of control relay JK, realize that battery is full of back outage automatically; The two ends of described relay K are parallel with relay indicating light LED
2, when charging normal, this relay indicating light LED
2Bright, battery is full of the back relay K and disconnects, and this lamp extinguishes; The two ends of described charge power supply V are parallel with power supply indicator LED
1, when charger and the connection of this power-off protection apparatus, this power supply indicator LED
1Bright, otherwise this lamp is not luminous.
During use, the two ends of this power-off protection apparatus are connected with battery with charger by lead respectively, 220V voltage is exported 55.5V voltage behind charger step-down current stabilization, and one the road supplies with battery charge, and another road enters voltage stabilizing circuit 4, simultaneously sample resistance R
1And R
2Be connected to negative input end the 2nd pin and the 6th pin of comparator; When just beginning to charge, the level of comparator input terminal is a low level, and the level of output is a high level, and relay J K is in attracting state, and charging continues, and relay indicating light LED
2Luminous; When charge volume reached set point, the level of comparator input terminal was a high level, the output output low level, and relay J K disconnects, relay indicating light LED
2Extinguish, battery stops charging.
Described voltage stabilizing circuit, the voltage of output remains on 15V～25V.
Use the break-make of 1 relay K control charging circuit in this circuit, improved the stability of outage.
The circuit theory of this power-off protection apparatus can be widely used in the cell charge protection of electronic products such as electric motor car, mobile phone, MP3, digital camera, has good applicability.
The beneficial effects of the utility model are: this a kind of battery charge power-off protection apparatus, and this apparatus structure is simple, and is easy to use; can be widely used in the charge protection of batteries such as electric motor car, mobile phone, applicability is strong, and outage thoroughly; prolong the useful life of battery, and effectively saved electric energy.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the example structure schematic diagram of this a kind of battery charge power-off protection apparatus.
Accompanying drawing 2 is the operation principle block diagram of this a kind of battery charge power-off protection apparatus.
Accompanying drawing 3 is the circuit theory diagrams of this a kind of battery charge power-off protection apparatus.
Among the figure, 1. charger, 2. power-off protection apparatus, 3. battery, 4. voltage stabilizing circuit, 5. sample circuit, 6. comparison circuit, 7. executive component.
Embodiment
In the accompanying drawings, this a kind of battery charge power-off protection apparatus comprises voltage stabilizing circuit 4, sample circuit 5, comparison circuit 6 and executive component 7; Described power-off protection apparatus has a housing; The two ends of described housing are respectively equipped with lead and are electrically connected with charger 1 and battery 3; In the described housing circuit board is installed, voltage stabilizing circuit 4, sample circuit 5, comparison circuit 6 and executive component 7 are installed on this circuit board; Described voltage stabilizing circuit 4 is by voltage-stabiliser tube W, current-limiting resistance R
8, capacitor C
1With discharge resistance R
9Form; The output of described voltage stabilizing circuit 4 is parallel with executive component 7 relay J K and regulator block 7805; The output of regulator block 7805 is connected with comparison circuit 6, and output 5V operating voltage offers comparison circuit 6 and uses; Described comparison circuit 6 is made of integrated circuit LM358; Described sample circuit 5 is through resistance R
1, R
2Be connected to negative input end the 2nd pin and the 6th pin of integrated circuit LM358 comparator after the dividing potential drop; TL431 and resistance R
3Form reference voltage, through resistance R
4, R
5Be connected respectively to comparator positive input terminal the 5th pin and the 3rd pin after the dividing potential drop; Triode VT
1And VT
2Base stage is through resistance R
7, R
6Be connected respectively to output the 1st pin and the 7th pin of comparator, be used for the break-make of control relay JK, realize that battery is full of back outage automatically; The two ends of described relay K are parallel with relay indicating light LED
2, when charging normal, this relay indicating light LED
2Bright, battery is full of the back relay K and disconnects, and this lamp extinguishes; The two ends of described charge power supply V are parallel with power supply indicator LED
1, when charger 1 is connected with this power-off protection apparatus 3, this power supply indicator LED
1Bright, otherwise this lamp is not luminous.
During use, the two ends of this power-off protection apparatus are connected with battery 3 with charger 1 by lead respectively, 220V voltage is exported 55.5V voltage behind charger 1 step-down current stabilization, and one the road supplies with battery 3 chargings, and another road enters voltage stabilizing circuit 4, simultaneously sample resistance R
1And R
2Be connected to negative input end the 2nd pin and the 6th pin of comparator; When just beginning to charge, the level of comparator input terminal is a low level, and the level of output is a high level, and relay J K is in attracting state, and charging continues, and relay indicating light LED
2Luminous; When charge volume reached set point, the level of comparator input terminal was a high level, the output output low level, and relay J K disconnects, relay indicating light LED
2Extinguish, battery 3 stops charging.
Described voltage stabilizing circuit 4, the voltage of output remains on 15V～25V.
Use the break-make of 1 relay K control charging circuit in this circuit, improved the stability of outage.
The circuit theory of this power-off protection apparatus 3 can be widely used in the cell charge protection of electronic products such as electric motor car, mobile phone, MP3, digital camera, has good applicability.
The foregoing description is not the restriction to this utility model, but for the utility model is further described.
Claims (2)
1. a battery charge power-off protection apparatus comprises voltage stabilizing circuit (4), sample circuit (5), comparison circuit (6) and executive component (7); Described power-off protection apparatus has a housing; It is characterized in that: the two ends of described housing are respectively equipped with lead and are electrically connected with charger (1) and battery (3); In the described housing circuit board is installed, voltage stabilizing circuit (4), sample circuit (5), comparison circuit (6) and executive component (7) are installed on this circuit board; Described voltage stabilizing circuit (4) is by voltage-stabiliser tube W, current-limiting resistance R
8, capacitor C
1With discharge resistance R
9Form; The output of described voltage stabilizing circuit (4) is parallel with executive component (7) relay J K and regulator block 7805; The output of regulator block 7805 is connected with comparison circuit (6); Described comparison circuit (6) is made of integrated circuit LM358; Described sample circuit (5) is through resistance R
1, R
2Be connected to negative input end the 2nd pin and the 6th pin of integrated circuit LM358 comparator after the dividing potential drop; TL431 and resistance R
3Form reference voltage, through resistance R
4, R
5Be connected respectively to comparator positive input terminal the 5th pin and the 3rd pin after the dividing potential drop; Triode VT
1And VT
2Base stage is through resistance R
7, R
6Be connected respectively to output the 1st pin and the 7th pin of comparator; The two ends of described relay K are parallel with relay indicating light LED
2The two ends of described charge power supply V are parallel with power supply indicator LED
1
2. according to the described a kind of battery charge power-off protection apparatus of claim 1, it is characterized in that: described voltage stabilizing circuit (4), the voltage of output remains on 15V～25V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200902498U CN201937319U (en) | 2011-03-23 | 2011-03-23 | Battery charge and power-off protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200902498U CN201937319U (en) | 2011-03-23 | 2011-03-23 | Battery charge and power-off protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937319U true CN201937319U (en) | 2011-08-17 |
Family
ID=44448826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200902498U Expired - Fee Related CN201937319U (en) | 2011-03-23 | 2011-03-23 | Battery charge and power-off protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937319U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410139A (en) * | 2014-12-25 | 2015-03-11 | 江苏理工学院 | Automatic power off circuit and automatic power off device for full charging of storage battery of accumulator car |
| CN104836301A (en) * | 2015-05-25 | 2015-08-12 | 泉州市南安市轴飞电子科技有限公司 | Novel energy car |
| CN106160152A (en) * | 2016-07-11 | 2016-11-23 | 安庆新景技电子科技有限公司 | A kind of emergency power-off device for electric motor car |
| CN107124025B (en) * | 2017-07-12 | 2023-12-29 | 天津市中环三峰电子有限公司 | Multi-battery quick charging and battery detection device and method for emergency lamp |
-
2011
- 2011-03-23 CN CN2011200902498U patent/CN201937319U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410139A (en) * | 2014-12-25 | 2015-03-11 | 江苏理工学院 | Automatic power off circuit and automatic power off device for full charging of storage battery of accumulator car |
| CN104836301A (en) * | 2015-05-25 | 2015-08-12 | 泉州市南安市轴飞电子科技有限公司 | Novel energy car |
| CN106160152A (en) * | 2016-07-11 | 2016-11-23 | 安庆新景技电子科技有限公司 | A kind of emergency power-off device for electric motor car |
| CN107124025B (en) * | 2017-07-12 | 2023-12-29 | 天津市中环三峰电子有限公司 | Multi-battery quick charging and battery detection device and method for emergency lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201937319U (en) | Battery charge and power-off protection device | |
| CN103701164A (en) | Supercapacitor and conventional cell combined power supply capable of being quickly charged | |
| CN202282606U (en) | Charger automatic full power-off safety energy-saving device | |
| CN203407043U (en) | Power supply apparatus of intelligent LED emergency lamp | |
| CN104553840A (en) | Automobile emergency startup power source and automobile emergency startup method | |
| CN105743146A (en) | Terminal cell and charging and discharging control method therefor | |
| CN204928320U (en) | Car charge battery circuit | |
| CN206432735U (en) | A kind of dc source double work state control circuit | |
| CN103227502A (en) | Smart battery | |
| CN204118786U (en) | Storage battery charge protection device | |
| CN203589799U (en) | UPS uninterruptible power supply possessing storage battery monitoring function | |
| CN205986253U (en) | Electric motor car battery charger's auto -power -off circuit | |
| CN205355882U (en) | Novel battery stator indicator | |
| CN205017080U (en) | Electric vehicle charging ware intelligent control circuit | |
| CN202353272U (en) | Saturation indicating circuit | |
| CN103269064A (en) | Zero-power-consumption releasing circuit of anti-interference capacitor at AC end of switching power supply | |
| CN202503355U (en) | Automatic power-off device for electric bicycle charging | |
| CN201860131U (en) | Charger | |
| CN204905373U (en) | A solar charging ware for having cross and to fill and not to have a short -circuit protection lithium ion battery | |
| CN206628824U (en) | A kind of anti-firing circuit and direct current charging connector | |
| CN101969707B (en) | A kind of lamp switching circuit of battery charger | |
| CN201117741Y (en) | Automobile intelligent accumulator device | |
| CN203352156U (en) | Zero power consumption release circuit for anti-interference capacitors on switching power supply AC end | |
| CN205265320U (en) | Battery charger of safe power saving | |
| CN204230976U (en) | A kind of automatic charge cut-off circuit of chargeable flashlight |
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: 20110817 Termination date: 20120323 |