CN2539336Y - Automatic charger with multiple protection function - Google Patents
Automatic charger with multiple protection function Download PDFInfo
- Publication number
- CN2539336Y CN2539336Y CN02230695U CN02230695U CN2539336Y CN 2539336 Y CN2539336 Y CN 2539336Y CN 02230695 U CN02230695 U CN 02230695U CN 02230695 U CN02230695 U CN 02230695U CN 2539336 Y CN2539336 Y CN 2539336Y
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- circuit
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- transformer
- power output
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an automatic charging set provided with a plurality of protecting functions, comprising a transformer isolating, voltage dropping and rectifying charging circuit, a misconnection and short-circuit protection circuit and an overcharge protection circuit. The utility model has the advantages of simple circuit, wide power supply application range, low cost, stable and reliable working performance, misconnection and short-circuit protection function and automatic power-off function for overcharge. The utility model can effectively avoid the storage battery damage due to overcharge and effectively avoid burning the charging set due to misconnection and short-circuit, and is suitable for battery jar charge on the automobile, the motorcycle, the power-assisted bicycle and the inverse power supply.
Description
Technical field
The utility model relates to the automatic charger with kinds of protect function that storage battery chargings such as a kind of automobile, motorcycle, electric assisted bicycle, inverter are used.
Background technology
Charger is widely used in the charging of storage batterys such as automobile, motorcycle, electric assisted bicycle, inverter as a kind of charging device.At present, the known charger that utilizes high frequency transformer or Industrial Frequency Transformer output rectification to charge still accounts for the charger significant proportion that sell in market, this class charger does not generally all have anti-misconnection and anti-short-circuit protection, majority is to insert fuse at output, and fuse in use can often blow, also to replace during replacing, otherwise not have protective effect, bring very big inconvenience to use by original specification; Even more serious is in a single day when losing protective effect, charger is to the rectifier diode refluence it to be burnt the back puncture because of polarity connects the anti-ballistic bottle electricity of sending a telegraph, and makes the transformer secondary output short circuit cause himself heating burnout.
Summary of the invention
There is not mistake proofing to take over control short-circuit protection in order to overcome existing charger; burn the deficiency of charging device easily; the utility model provides a kind of automatic charger with kinds of protect function; this charger is not only simple in structure; with low cost; and the storage battery of suitable 6V-36V carries out many gears and charges automatically, can prevent effectively that charger from burning charging device because of the misconnection short circuit.
The technical scheme that its technical problem that solves the utility model adopts is: this automatic charger with kinds of protect function; comprise casing; the strong and weak switch of electric current; ammeter; the voltage gear bit switch; power input plug and power output end interface; be characterized in that it is provided with transformer isolation step-down rectifier charging circuit and short-circuit protection circuit is taken over control in mistake proofing; wherein transformer isolation step-down rectifier charging circuit adopts common charging circuit; circuit connecting mode is: power line inserts the primary coil of transformer; the output termination power output end interface of transformer isolation step-down rectifier charging circuit, the bridge rectifier ZQ of short-circuit protection circuit is taken over control in the secondary rolling thread of transformer B and mistake proofing
2Connect, the output termination power output end interface of short-circuit protection circuit is taken over control in mistake proofing.When charger also need have anti-overcharge electric work can the time, also can take over control anti-overcharge circuit in parallel between the base stage of triode VT of short-circuit protection circuit and the power cathode in mistake proofing.
The beneficial effects of the utility model are:
1, circuit is simple, the power supply wide accommodation, and production cost is low, stable and reliable working performance.
2, have anti-overcharge, anti-overflow, anti-misconnection and anti-short-circuit protection function, can prevent effectively that the storage battery that the storage battery overcharge causes from damaging, prevent that charger from burning charging device because of the misconnection short circuit, thereby reduce the waste of resource, improve the utilance of resource.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a shape assumption diagram of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
From Fig. 1, see; this automatic charger with kinds of protect function can be installed in the portable square casing (1) that is provided with the dial plate plane; the dial plate plane is provided with the strong and weak switch (4) of electric current, the indication of mistake proofing retaining overcurrent switching current table dial plate (5), power supply indicator (3), is full of electric indicator light (2) and voltage gear bit switch (6); in housing (1), draw three lines; wherein one is power plug wire (7), and two is the output line that connects the storage battery charging in addition.
See that from Fig. 2 the automatic charger with kinds of protect function comprises that transformer isolation step-down rectifier charging circuit, anti-overcharge circuit and mistake proofing take over control short-circuit protection circuit, power line inserts mains switch K, strong and weak gear switch K
1, the primary coil of access transformer B, the output termination power output end interface of transformer isolation step-down charging circuit, the bridge rectifier ZQ of short-circuit protection circuit is taken over control in the secondary rolling thread of transformer B and mistake proofing
2Connect, the detection termination power output end interface of short-circuit protection circuit is taken over control in mistake proofing, and mistake proofing is taken over control short-circuit protection circuit and also is parallel with an anti-overcharge circuit.Mistake proofing is taken over control short-circuit protection circuit by bridge rectifier ZQ
2, capacitor C, relay J, triode VT, photoelectronic coupler PC
1, diode D
1, D
2, D
3, LED
1, resistance R
1, R
2, R
3Form bridge rectifier ZQ
2Ac input end be electrically connected with the secondary winding of transformer B, its positive output end connects R
1, the positive pole of C, D
1, J, R
2, its negative terminal connects LED
1, C, D
3Negative pole, the collector electrode of VT meets D
1, J, the emitter of VT meets D
3Positive pole, the base stage of VT meets PC
1The emitter of interior photoelectric tube, PC
1The anodal R that connects of interior photoelectric tube
3Connect the power output end anode interface, its negative pole connects D
2Connect power output end negative pole interface.Anti-overcharge circuit is by photoelectronic coupler PC
2, LED
2, accurate integrated regulator TL431, resistance R
4, R
5, RP
1, RP
2, RP
3Form PC
2The collector electrode of interior photoelectric tube is electrically connected the base stage of triode VT, PC
2The emitter of interior photoelectric tube is electrically connected bridge rectifier ZQ
2Negative terminal, PC
2The anodal R that connects of interior luminous tube
4The connection control circuit positive supply, its negative pole serial connection LED
2, connect power output end negative pole interface behind the TL431, the input of TL431 and be connected across resistance R on the charging positive-negative output end
5, RP
1, RP
2, RP
3The bleeder circuit that constitutes is electrically connected.
The operation principle of charger: with reference to Fig. 2, after the primary coil of transformer B inserted power supply, the required voltage of secondary acquisition divided duplex feeding, a route K
2-1Through ZQ
1Charge another road direction control circuit power supply after the rectification to storage battery by ammeter and overcurrent switch S A.The power supply of control circuit is to draw by the transformer secondary output winding, through ZQ
2Obtain after rectification, the capacitor C filtering.When the charger output does not connect storage battery because triode VT disconnects by contact JK, at this moment no matter the output short circuit still is a misconnection storage battery polarity, to charger without any influence.When the charger output line was correctly received on the storage battery, the storage battery electricity was through resistance R
2Flow to photoelectronic coupler PC
1Interior light-emitting diode is again through D
2Flow to negative pole and make it luminous, cause the photoelectric tube conducting simultaneously, triode VT is owing to obtain also and then conducting of base bias, and relay J gets electric, and JK adhesive connection output circuit charger enters and charges normal.In charging process (when being contact JK joint), if two output lines of charger bump together, when causing short circuit or misconnection on storage battery, photoelectronic coupler PC
1Interior light-emitting diode will lose forward voltage, and photoelectric tube is ended, and triode VT also ends simultaneously, and relay J dead electricity contact JK disconnects, so charger is protected.More than be the operation principle of anti-misconnection and anti-short circuit current, the circuit in the dotted line basket among the figure just.The operation principle of anti-overcharge circuit: in order to be fit to that the storage battery of multiple different voltages is charged, circuit has selected the magnitude of voltage of three kinds of storage batterys (6V, 12V, 24V) commonly used to design multi-gear switch K among the figure
2-1, K
2-2Be the doubly-linked coaxial switch, be used for selecting when storage battery to different voltages charges different gears.Battery voltage can slowly raise in charging process, when battery voltage is raised to set point (reaching 14.5V as the 12V storage battery is full charge when above).By R
5And RP
1, RP
2, RP
3Wherein one group of bleeder circuit that constitutes a certain gear, as long as voltage reaches 2.5V, TL431 is with conducting at the input of TL431, at this moment electric current is through R
4, PC
2In light-emitting diode make the conducting of optoelectronic switch pipe, the VT base potential will descend rapidly VT is ended, relay J dead electricity JK contact disconnects, and makes storage battery be unlikely overcharge and damages.
Resistance R among the figure
1, R
2, R
3, R
4Be current-limiting resistance, LED
1Be power supply indication, LED
2For being full of electricity indication, diode D
2Improve the oppositely withstand voltage of the interior light-emitting diode of photoelectronic coupler, diode D
3In order to improve VT emitter current potential, make VT at PC
2In the photoelectric tube conducting time it is reliably ended, diode D
1The inverse peak voltage that produces during as absorption relay coil break-make.If this charger only charges to the storage battery of single voltage, circuit can remove K
2-1, K
2-2Two-way tumbler switch and RP
2, RP
3, overcurrent switch S A, make circuit more simple and reliable.It is for improving power adaptation that primary is set up driving switch.SA is a bimetal leaf overcurrent switch, plays overcurrent protection when mainly being the mistake proofing shelves in circuit.At its two ends and connect and play reminding effect when buzzer makes overcurrent.
Claims (3)
1. automatic charger with kinds of protect function; comprise casing (1); the strong and weak switch (4) of electric current; voltage gear bit switch (6); power input plug (7) and power output end interface; it is characterized in that: it is provided with transformer isolation step-down rectifier charging circuit and short-circuit protection circuit is taken over control in mistake proofing; described transformer isolation step-down rectifier charging circuit adopts common charging circuit; circuit connecting mode is: power line inserts the primary coil of transformer B; the output termination power output end interface of transformer isolation step-down rectifier charging circuit, the bridge rectifier ZQ of short-circuit protection circuit is taken over control in the secondary rolling thread of transformer B and mistake proofing
2Connect, the detection termination power output end interface of short-circuit protection circuit is taken over control in mistake proofing.
2. the automatic charger with kinds of protect function according to claim 1 is characterized in that mistake proofing takes over control short-circuit protection circuit by bridge rectifier ZQ
2, capacitor C, relay J, triode VT, photoelectronic coupler PC
1, diode D
1, D
2, D
3, LED
1, resistance R
1, R
2, R
3Form bridge rectifier ZQ
2Ac input end be electrically connected with the secondary winding of transformer B, its positive output end connects R
1, the positive pole of C, D
1, J, R
2, its negative terminal connects LED
1, C, D
3Negative pole, the collector electrode of VT meets D
1, J, the emitter of VT meets D
3Positive pole, the base stage of VT meets PC
1The emitter of interior photoelectric tube, PC
1The anodal R that connects of interior photoelectric tube
3Connect the power output end anode interface, its negative pole connects D
2Connect power output end negative pole interface.
3. the automatic charger with kinds of protect function according to claim 1 and 2 is characterized in that mistake proofing takes over control short-circuit protection circuit anti-overcharge circuit also in parallel, and anti-overcharge circuit is by photoelectronic coupler PC
2, LED
2, accurate integrated regulator TL431, resistance R
4, R
5, RP
1, RP
2, RP
3Form PC
2The collector electrode of interior photoelectric tube is electrically connected the base stage of triode VT, PC
2The emitter of interior photoelectric tube is electrically connected bridge rectifier ZQ
2Negative terminal, PC
2The anodal R that connects of interior luminous tube
4The connection control circuit positive supply, its negative pole serial connection LED
2, connect power output end negative pole interface behind the TL431, the input of TL431 and be connected across resistance R on the charging positive-negative output end
5, RP
1, RP
2, RP
3The bleeder circuit that constitutes is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02230695U CN2539336Y (en) | 2002-04-08 | 2002-04-08 | Automatic charger with multiple protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02230695U CN2539336Y (en) | 2002-04-08 | 2002-04-08 | Automatic charger with multiple protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539336Y true CN2539336Y (en) | 2003-03-05 |
Family
ID=33706587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02230695U Expired - Fee Related CN2539336Y (en) | 2002-04-08 | 2002-04-08 | Automatic charger with multiple protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539336Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950987A (en) * | 2009-10-26 | 2011-01-19 | 江苏嘉年华科技有限公司 | Inverter control circuit of storage battery |
| CN101630859B (en) * | 2009-08-14 | 2012-09-05 | 深圳和而泰智能控制股份有限公司 | Mobile terminal charger |
| CN103334844A (en) * | 2013-06-26 | 2013-10-02 | 庄景阳 | Intelligent energy saving controller |
| CN104201751A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Charge controller for direct-inserting type universal meter |
| CN105359400A (en) * | 2013-04-24 | 2016-02-24 | 西部数据技术公司 | Power supply with voltage output responsive to load demand |
| CN106160030A (en) * | 2015-03-26 | 2016-11-23 | 王学堂 | A kind of electric car charger |
| CN106655365A (en) * | 2016-12-12 | 2017-05-10 | 深圳市八戒电工技术有限公司 | Electric automobile charging power supply and method for charging electric automobile |
| CN110112798A (en) * | 2019-04-03 | 2019-08-09 | 六安市同心畅能电子科技有限公司 | Electro-mobile battery-charging protector circuit |
-
2002
- 2002-04-08 CN CN02230695U patent/CN2539336Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630859B (en) * | 2009-08-14 | 2012-09-05 | 深圳和而泰智能控制股份有限公司 | Mobile terminal charger |
| CN101950987A (en) * | 2009-10-26 | 2011-01-19 | 江苏嘉年华科技有限公司 | Inverter control circuit of storage battery |
| CN101950987B (en) * | 2009-10-26 | 2013-04-24 | 江苏嘉年华科技有限公司 | Inverter control circuit of storage battery |
| CN105359400A (en) * | 2013-04-24 | 2016-02-24 | 西部数据技术公司 | Power supply with voltage output responsive to load demand |
| CN103334844A (en) * | 2013-06-26 | 2013-10-02 | 庄景阳 | Intelligent energy saving controller |
| CN103334844B (en) * | 2013-06-26 | 2016-03-09 | 石狮市高鑫技术孵化有限公司 | Intelligent energy-saving controller |
| CN104201751A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Charge controller for direct-inserting type universal meter |
| CN106160030A (en) * | 2015-03-26 | 2016-11-23 | 王学堂 | A kind of electric car charger |
| CN106160030B (en) * | 2015-03-26 | 2020-08-04 | 王学堂 | Electric vehicle charger |
| CN106655365A (en) * | 2016-12-12 | 2017-05-10 | 深圳市八戒电工技术有限公司 | Electric automobile charging power supply and method for charging electric automobile |
| CN110112798A (en) * | 2019-04-03 | 2019-08-09 | 六安市同心畅能电子科技有限公司 | Electro-mobile battery-charging protector circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |