CN202333848U - Automatic charger for electric vehicle - Google Patents
Automatic charger for electric vehicle Download PDFInfo
- Publication number
- CN202333848U CN202333848U CN2011203868446U CN201120386844U CN202333848U CN 202333848 U CN202333848 U CN 202333848U CN 2011203868446 U CN2011203868446 U CN 2011203868446U CN 201120386844 U CN201120386844 U CN 201120386844U CN 202333848 U CN202333848 U CN 202333848U
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- charger
- polarity
- storage battery
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Abstract
An automatic charger for an electric vehicle comprises a case, a charger power supply in the case, a charging control circuit and an output interface. The automatic charger is characterized by also comprising a polarity detecting and switching circuit, wherein the input end of the polarity detecting and switching circuit is connected with the output end of the charging control circuit, and the output end of the polarity detecting and switching circuit is connected with the output interface. Through an amplification circuit consisting of a relay and a triode, the automatic charger masterly utilizes a contact of the relay to detect and switch the polarities of a storage battery automatically so as to ensure the polarity of a charging circuit to be consistent with that of the storage battery. After the storage battery is fully charged, the charging control circuit stops charging the storage battery. The automatic charger has the advantages of being simple in structure, low in manufacturing cost and convenient to use and maintain, and realizing a good charging effect. The automatic charger is applicable to charging storage batteries of 36V, 48V and 60V of different electric vehicles.
Description
Technical field
The utility model relates to a kind of charger, especially the electric motor car automatic charger.
Background technology
The charger of present electric motor car, especially electric bicycle is that output interface voltage and polarity are fixing mostly, and is strict supporting with the storage battery E of electric motor car.After if former supporting charger is lost or damaged, the user just has charger and the not adaptive situation of storage battery when buying new charger.New charger be connected with storage battery exist opposite polarity maybe, when charger and reverse connection of accumulator, can cause short circuit and damage.And the anti-reverse function that generally has anti-reverse charger is only protected when reversal connection but can not be charged normal, and perhaps accomplishes the polarity switching through stirring the charger switch inside, perhaps accomplishes polarity through complicated circuitry and automaticallyes switch.Because electromobile battery E has multiple voltage at present; New charger is connected the problem that also has voltage adaptation with storage battery; When the charger output voltage causes accumulator super-charge heating swell and damage than battery tension Gao Shihui, when the charger output voltage is lower than battery tension, can cause storage battery to owe to fill damage.
Summary of the invention
In order to overcome the deficiency of existing charger; The utility model provides a kind of electric motor car automatic charger; This electric motor car automatic charger can not only be discerned accumulator polarity automatically and switch output polarity, and can discern automatically and break off charge circuit when storage battery E voltage is accomplished with charging.
The technical scheme of the utility model is:
A kind of electric motor car automatic charger comprises charger power supply, charging control circuit and output interface in shell, the shell, it is characterized in that:
Also comprise
Input is connected with the output of said charging control circuit, and the polarity that output is connected with said output interface detects and commutation circuit.
Described polarity detects and commutation circuit constitutes first current amplification circuit by the coil of resistance R 1, diode D1 and diode D3, triode Q1 and relay J 1 and constitutes second current amplification circuit with coil, resistance R 2, triode Q2 and diode D2 and diode D4 by relay J 2; Wherein, the base stage of triode Q1 is connected in series the output OUT1 to output interface with resistance R 1, normally-closed contact J2-1 in regular turn; The base stage of triode Q2 is connected in series the output OUT2 to output interface with resistance R 2, normally-closed contact J1-2 in regular turn; Power supply+VC is connected with normally opened contact J1-1 with normally opened contact J2-2 through lead, and ground wire GND is connected with normally-closed contact J1-1 with normally-closed contact J2-2 with diode D3, the diode D4 of string on lead through lead respectively.
The electric motor car automatic charger of above structure through the amplifying circuit that comprises that relay and triode constitute, utilizes the contact of relay automatically accumulator polarity to be detected and switch dexterously, has guaranteed that the polarity of charging circuit is consistent with accumulator polarity.After storage battery was full of electricity, charging control circuit stopped charge in batteries.Thereby achieve the goal.
Description of drawings
Fig. 1 is the utility model structural principle block diagram.
Fig. 2 is that the polarity of the utility model detects and the commutation circuit schematic diagram
Embodiment
Shown in Figure 1, be the utility model structural principle block diagram.Can know that from figure this electric motor car automatic charger comprises that shell, charger power supply 1, charging control circuit 2, polarity detect and commutation circuit 3 and output interface 4; Wherein, charger power supply 1 is a prior art with charging control circuit 2.Existing charger power supply 1 generally is made up of the switching and rectifying filter circuit, the alternating current of input is become supply with each circuit electric energy after direct current and the filtering; Charging control circuit 2 produces circuit by charging pulse and accumulator voltage detecting circuit is formed.The output of charger power supply 1 is connected with charging control circuit 2 through lead one tunnel, and another detects with accumulator polarity and is connected with commutation circuit 3.The output of charging control circuit 2 is connected with the input of accumulator polarity testing circuit and commutation circuit 3; Accumulator polarity detects and the output of commutation circuit 3 is connected with the input of output interface 4.When the output that needs storage batteries E with output interface 4 is connected; After polarity detection and commutation circuit 3 are accomplished the polarity switching; Charging control circuit 2 detects the voltage of storage battery E and starts charging control circuit 2 control charge circuits and begins storage battery E is charged; After storage battery E charged the voltage that reaches predetermined, charging control circuit 2 controls were broken off charge circuits and are stopped the charging to storage battery E, accomplish charging process.
Shown in Figure 2, be that the polarity of the utility model detects and the commutation circuit schematic diagram.The operation principle that the polarity of the utility model detects with commutation circuit 3 is: charging control circuit 2 for polarity detection circuit and commutation circuit 3 provide power supply+VC ,+12V voltage and ground wire GND; When two output OUT1 of output interface 4, positive pole that OUT2 meets storage battery E respectively, negative pole; The electric current of storage battery E output injects from the OUT1 of output interface 4, and the end OUT2 that flows to output interface 4 through the normally-closed contact J2-2 of base stage, diode D3 and the relay J 2 of the normally-closed contact J2-1 that succeeds electrical equipment J2, resistance R 1, triode Q1 forms the loop.Wherein, the coil of resistance R 1, diode D1, triode Q1 and relay J 1 constitutes first current amplification circuit.Because of the base stage of triode Q1 has forward current to flow through, triode Q1 conducting, relay J 1 coil gets electric adhesive normally opened contact, and the positive pole of storage battery E is connected to power supply+VC through the normally-closed contact J1-1 of relay J 1; The negative pole of storage battery E is connected to ground wire GND through the normally-closed contact J1-2 of relay J 1, accomplishes a polarity change action; Otherwise; As the output OUT1 of output interface 4, negative pole that OUT2 meets storage battery E respectively, when anodal; The electric current of storage battery E output injects from the output OUT2 of output interface 4, and the output OUT1 that the normally-closed contact J1-1 of base stage, diode D4 and the relay J 1 of the normally-closed contact J1-2 of process relay J 1, resistance R 2, triode Q2 flows to output interface 4 forms the loop.Wherein, the coil of relay J 2, resistance R 2, triode Q2 and diode D2 constitute second current amplification circuit.Because of the base stage of triode Q2 has forward current to flow through; Triode Q2 conducting; Relay J 2 coils get electric adhesive normally opened contact; The positive pole of storage battery E is connected to power supply+VC through the normally-closed contact J2-2 of relay J 2, and the negative pole of storage battery E is connected to ground wire GND through the normally-closed contact J2-1 of relay J 2, accomplishes another polarity change action.After storage battery was full of electricity, charging control circuit stopped charge in batteries, accomplished charging process.
The utility model can be realized the electric motor car automatic charger that electromobile battery E auto polarity switches, charging voltage is controlled automatically to 36V, 48V, the different voltages of 60V; Have simple in structurely, cheap for manufacturing cost, working service is convenient, the characteristics that charging effect is good.
Claims (2)
1. an electric motor car automatic charger comprises charger power supply, charging control circuit and output interface in shell, the shell, it is characterized in that:
Also comprise
Input is connected with the output of said charging control circuit (2), and the polarity that output is connected with said output interface (4) detects and commutation circuit (3).
2. electric motor car automatic charger according to claim 1 is characterized in that:
Described polarity detects and commutation circuit (3) constitutes first current amplification circuit by the coil of resistance R 1, diode D1 and diode D3, triode Q1 and relay J 1 and constitutes second current amplification circuit with coil, resistance R 2, triode Q2 and diode D2 and diode D4 by relay J 2; Wherein, the base stage of triode Q1 is connected in series to the output OUT1 of output interface (4) with resistance R 1, normally-closed contact J2-1 in regular turn; The base stage of triode Q2 is connected in series to the output OUT2 of output interface (4) with resistance R 2, normally-closed contact J1-2 in regular turn; Power supply+VC is connected with normally opened contact J1-1 with normally opened contact J2-2 through lead, and ground wire GND is connected with normally-closed contact J1-1 with normally-closed contact J2-2 with diode D3, the diode D4 of string on lead through lead respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868446U CN202333848U (en) | 2011-10-12 | 2011-10-12 | Automatic charger for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868446U CN202333848U (en) | 2011-10-12 | 2011-10-12 | Automatic charger for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333848U true CN202333848U (en) | 2012-07-11 |
Family
ID=46445814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203868446U Expired - Fee Related CN202333848U (en) | 2011-10-12 | 2011-10-12 | Automatic charger for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333848U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147178A (en) * | 2017-06-08 | 2017-09-08 | 上海南电新能源集团有限公司 | The electric power electric power structure and its electric current transmission method of a kind of quick charge stake |
| CN107147084A (en) * | 2017-06-19 | 2017-09-08 | 陈爱军 | Protect the method and the battery charging inlet with three proofings function using this method of battery charging inlet |
| CN108471155A (en) * | 2018-04-20 | 2018-08-31 | 广州金升阳科技有限公司 | A kind of battery charger adaptive circuit |
| CN108621843A (en) * | 2018-05-10 | 2018-10-09 | 江苏金彭车业有限公司 | A kind of charging system for preventing electric vehicle from moving when charging |
-
2011
- 2011-10-12 CN CN2011203868446U patent/CN202333848U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147178A (en) * | 2017-06-08 | 2017-09-08 | 上海南电新能源集团有限公司 | The electric power electric power structure and its electric current transmission method of a kind of quick charge stake |
| CN107147084A (en) * | 2017-06-19 | 2017-09-08 | 陈爱军 | Protect the method and the battery charging inlet with three proofings function using this method of battery charging inlet |
| CN108471155A (en) * | 2018-04-20 | 2018-08-31 | 广州金升阳科技有限公司 | A kind of battery charger adaptive circuit |
| CN108621843A (en) * | 2018-05-10 | 2018-10-09 | 江苏金彭车业有限公司 | A kind of charging system for preventing electric vehicle from moving when charging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121012 |