CN2343706Y - Supply unit for vehicle electronic charging apparatus - Google Patents
Supply unit for vehicle electronic charging apparatus Download PDFInfo
- Publication number
- CN2343706Y CN2343706Y CN 98234590 CN98234590U CN2343706Y CN 2343706 Y CN2343706 Y CN 2343706Y CN 98234590 CN98234590 CN 98234590 CN 98234590 U CN98234590 U CN 98234590U CN 2343706 Y CN2343706 Y CN 2343706Y
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- CN
- China
- Prior art keywords
- circuit
- voltage
- battery
- storage battery
- supply unit
- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a supply device for a vehicle electronic charging machine, which comprises an input circuit 1 for vehicle voltage, an overvoltage and overcurrent protection circuit 2, a DC/DC circuit 3, an output switch circuit 4, a DC-DC module 5, a charging and discharging circuit 6, an accumulator 7, a sample circuit 8 for accumulator voltage, and a control circuit 9 for accumulator discharge. Therefore, when the input voltage of a vehicle is greater than 12V, the accumulator is charged through the control of the charging and discharging circuit. When the input voltage of the vehicle is less than the accumulator voltage of 12V, the accumulator is discharged. The normal operation of the supply device can be ensured. Thereby, the problem of abnormal operation of the vehicle electronic charging machine of a bus is solved. The supply device also has the function of uninterrupted power supply (UPS) when the power supply system of the bus fails temporarily.
Description
The utility model belongs to electronic product, relates in particular to a kind of supply unit of vehicle electronics money machine.
At present, the electronic charging machine is installed on the bus in the many cities of China, has realized self-service ticketing.The operational environment of this vehicle electronic device is more abominable, and power supply voltage range even in certain moment, during the petrol engine power supply, can produce a strong positive or negative pulse usually between 8V～40V, makes supply power voltage surpass 40V or is lower than 8V.Promptly concerning vehicle electronics money machine power supply, when input voltage changed between 8V～40V, requiring its output voltage was 5V/12V, that is when requiring supply power voltage to fluctuate in-33.3%～+ 66.6% scope, vehicle electronics charge motor still can operate as normal.This just requires the supply unit of vehicle electronics money machine can adapt to the change in voltage of above-mentioned situation.
The purpose of this utility model exactly in order to address the above problem, and provides a kind of supply unit that can adapt to the automobile adverse circumstances, guarantee vehicle electronics money machine operate as normal.
A kind of supply unit of vehicle electronics money machine, comprise automobile voltage input circuit, over-voltage over-current protection circuit, DC/DC circuit, output switch circuit, DC-DC module, automobile voltage input circuit, over-voltage over-current protection circuit, DC/DC circuit, output switch circuit, DC-DC sequence of modules link to each other, and it is characterized in that also comprising sample circuit, the battery discharging control circuit of charge-discharge circuit, storage battery, battery tension; Charge-discharge circuit links to each other with DC/DC circuit, storage battery, and the cell voltage sample circuit links to each other with storage battery, battery discharging control circuit, and the battery discharging control circuit links to each other with output switch circuit.
Owing in this supply unit, increased charge-discharge circuit, storage battery, the sample circuit of battery tension, battery discharging control circuit; therefore when automobile input voltage during greater than 12V; charge-discharge circuit control is charged to storage battery; absorb for instantaneous positive pulse; thereby protected the DC/DC circuit, guaranteed the supply unit operate as normal of vehicle electronics money machine.When automobile input voltage during less than battery tension 12V, storage battery discharges, and has guaranteed that also supply unit can operate as normal.When battery discharging voltage is lower than 7V, after the sample circuit sampling of battery discharging control circuit by battery tension, send the voltage output that signal pulse makes output switch circuit power cutoff device, guarantee that storage battery is unlikely overdischarge.Thereby solved the difficult problem of bus vehicle electronics money machine operate as normal, the supply unit that while the utility model provides can also can be kept the power supply of vehicle electronics money machine when the automobile power supply system temporary fault, plays the effect of uninterrupted power supply UPS.
Fig. 1 is a functional-block diagram of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
Describe in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the 1st, automobile voltage input circuit, the 2nd, over-voltage over-current protection circuit, the 3rd, DC/DC circuit, the 4th, output switch circuit, the 5th, DC-DC module, the 6th, charge-discharge circuit, the 7th, storage battery, the 8th, the sample circuit of battery tension, the 9th, battery discharging control circuit; Automobile voltage input circuit, over-voltage over-current protection circuit, DC/DC circuit, output switch circuit, DC-DC sequence of modules link to each other; charge-discharge circuit links to each other with DC/DC circuit, storage battery; the cell voltage sample circuit links to each other with storage battery, battery discharging control circuit, and the battery discharging control circuit links to each other with output switch circuit.
As shown in Figure 2, charge-discharge circuit is formed in parallel by diode D2 and resistance R 1, and positive pole one end and the battery positive voltage of diode are joined, 6 pin of the MAX787 in the negative pole termination DC/DC circuit of diode; The storage battery sample circuit is made up of R2, R3, C6, R3, C6 parallel connection, and R3, R2 series connection, the end of R2 links to each other with the positive pole of diode D2, the positive pole of storage battery, and the end of R3, the end of C6 link to each other with the negative pole of storage battery; The battery discharging control circuit is made up of single-chip microcomputer PIC16C71 and peripheral circuit thereof, 17 pin of PIC16C71 access the tie point of sample resistance R 2, R3,3,4,5,14,16 pin of PIC16C71 connect electrify restoration circuit and the crystal oscillating circuit of being made up of R6, R8, C3, C8, C9, and 6 pin connect 4 pin of the TPS2013 in the output switch circuit.
5,3,2 pin of MAX787 connect the peripheral circuit of being made up of C1, C2, C5, R4, and 4 pin connect 2,3 pin of TPS2013,5,6,7,8 pin plug J3 and the DC-DC module of TPS2013 by inductance L.
Automobile power source (just often being 12V) is gone into by L, N termination, through resettable fuse F1 and TVP voltage-stabiliser tube Z2 circuit is carried out overvoltage and overcurrent protection; Carry out High frequency filter through two utmost point filter FLDB320-3A again; MAX787 is a DC/DC converter, can be transformed into stable+5V to the 8V-40V of input, and its output current can reach 3A; TPS2013 is an electronic switch, controls ten 5V output by single-chip microcomputer PIC16C71; PIC16C71 by to the dividing potential drop of sample resistance R2, R3 sampling realize to storage battery (12V, 1.2Ah) discharge and recharge control, when A point voltage during greater than battery tension 12V, electric current is by 1 pair of charge in batteries of resistance R; When battery tension during greater than the A point voltage, storage battery is promptly powered to MAX787 by diode D2 discharge; When battery discharging voltage was lower than 7V, single-chip microcomputer sampling rate back was sent signal by 6 pin RBO, and TPS2013 is turn-offed, and had guaranteed that storage battery is unlikely overdischarge; Last again by electronic switch output+5V is through DC-DC module output+12V (500MA).+ 5V ,+12V through plug J3 as the output of this power supply with to vehicle-mounted money machine power supply.
Claims (4)
1, a kind of supply unit of vehicle electronics money machine, comprise automobile voltage input circuit, over-voltage over-current protection circuit, DC/DC circuit, output switch circuit, DC-DC module, automobile voltage input circuit, over-voltage over-current protection circuit, DC/DC circuit, output switch circuit, DC-DC sequence of modules link to each other, and it is characterized in that also comprising sample circuit, the battery discharging control circuit of charge-discharge circuit, storage battery, battery tension; Charge-discharge circuit links to each other with DC/DC circuit, storage battery, and the cell voltage sample circuit links to each other with storage battery, battery discharging control circuit, and the battery discharging control circuit links to each other with output switch circuit.
2, supply unit as claimed in claim 1 is characterized in that charge-discharge circuit is formed in parallel by diode D2 and resistance R 1, and positive pole one end and the battery positive voltage of diode are joined, 6 pin of the MAX787 in the negative pole termination DC/DC circuit of diode.
3, supply unit as claimed in claim 1, it is characterized in that the storage battery sample circuit is made up of R2, R3, C6, R3, C6 parallel connection, R3, R2 series connection, the end of R2 links to each other with the positive pole of diode D2, the positive pole of storage battery, and the end of R3, the end of C6 link to each other with the negative pole of storage battery.
4, supply unit as claimed in claim 1, it is characterized in that the battery discharging control circuit is made up of single-chip microcomputer PIC16C71 and peripheral circuit thereof, 17 pin of PIC16C71 access the tie point of sample resistance R 2, R3, (71 3,4,5,14,16 pin connect electrify restoration circuit and the crystal oscillating circuit of being made up of R6, R8, C3, C8, C9 to PIC16, and 6 pin connect 4 pin of the TPS2013 in the output switch circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98234590 CN2343706Y (en) | 1998-06-30 | 1998-06-30 | Supply unit for vehicle electronic charging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98234590 CN2343706Y (en) | 1998-06-30 | 1998-06-30 | Supply unit for vehicle electronic charging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343706Y true CN2343706Y (en) | 1999-10-13 |
Family
ID=33983071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98234590 Expired - Fee Related CN2343706Y (en) | 1998-06-30 | 1998-06-30 | Supply unit for vehicle electronic charging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343706Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895109A (en) * | 2009-05-22 | 2010-11-24 | 触动多媒体技术（上海）有限公司 | Power system of vehicular interaction device |
| CN101890923A (en) * | 2009-05-22 | 2010-11-24 | 触动多媒体技术（上海）有限公司 | Vehicle-mounted multimedia advertisement recreational interactive equipment system |
| CN102193608A (en) * | 2010-03-03 | 2011-09-21 | 广达电脑股份有限公司 | Adjustable current-limiting averaging circuit, and peripheral device and computer system using same |
| CN101567568B (en) * | 2008-04-21 | 2012-01-25 | 深圳市莱科电子技术有限公司 | Vehicle charging system realizing data transmission between cellphone and navigator |
| CN102785625A (en) * | 2011-05-17 | 2012-11-21 | 三菱电机株式会社 | On-vehicle electronic control apparatus |
| CN101396975B (en) * | 2007-09-28 | 2013-11-06 | 株式会社日立制作所 | Integrated circuit for battery and automotive power supply system using the same |
-
1998
- 1998-06-30 CN CN 98234590 patent/CN2343706Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101396975B (en) * | 2007-09-28 | 2013-11-06 | 株式会社日立制作所 | Integrated circuit for battery and automotive power supply system using the same |
| CN101567568B (en) * | 2008-04-21 | 2012-01-25 | 深圳市莱科电子技术有限公司 | Vehicle charging system realizing data transmission between cellphone and navigator |
| CN101895109A (en) * | 2009-05-22 | 2010-11-24 | 触动多媒体技术（上海）有限公司 | Power system of vehicular interaction device |
| CN101890923A (en) * | 2009-05-22 | 2010-11-24 | 触动多媒体技术（上海）有限公司 | Vehicle-mounted multimedia advertisement recreational interactive equipment system |
| CN101895109B (en) * | 2009-05-22 | 2014-04-09 | 触动多媒体技术（上海）有限公司 | Power system of vehicular interaction device |
| CN102193608A (en) * | 2010-03-03 | 2011-09-21 | 广达电脑股份有限公司 | Adjustable current-limiting averaging circuit, and peripheral device and computer system using same |
| CN102785625A (en) * | 2011-05-17 | 2012-11-21 | 三菱电机株式会社 | On-vehicle electronic control apparatus |
| CN102785625B (en) * | 2011-05-17 | 2015-07-29 | 三菱电机株式会社 | Vehicular electronic control unit |
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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 |